#include "Plater.hpp"

#include <cstddef>
#include <algorithm>
#include <numeric>
#include <vector>
#include <string>
#include <regex>
#include <future>
#include <boost/algorithm/string.hpp>
#include <boost/optional.hpp>
#include <boost/filesystem/path.hpp>
#include <boost/filesystem/operations.hpp>
#include <boost/log/trivial.hpp>
#include <boost/nowide/convert.hpp>
#include <boost/uuid/uuid.hpp>
#include <boost/uuid/uuid_generators.hpp>
#include <boost/uuid/uuid_io.hpp>

#include <wx/sizer.h>
#include <wx/stattext.h>
#include <wx/button.h>
#include <wx/bmpcbox.h>
#include <wx/statbox.h>
#include <wx/statbmp.h>
#include <wx/filedlg.h>
#include <wx/dnd.h>
#include <wx/progdlg.h>
#include <wx/wupdlock.h>
#include <wx/numdlg.h>
#include <wx/debug.h>
#include <wx/busyinfo.h>
#include <wx/event.h>
#include <wx/wrapsizer.h>
#ifdef _WIN32
#include <wx/richtooltip.h>
#include <wx/custombgwin.h>
#include <wx/popupwin.h>
#endif
#include <wx/clrpicker.h>

#include "libslic3r/libslic3r.h"
#include "libslic3r/Format/STL.hpp"
#include "libslic3r/Format/AMF.hpp"
//#include "libslic3r/Format/3mf.hpp"
#include "libslic3r/Format/bbs_3mf.hpp"
#include "libslic3r/GCode/ThumbnailData.hpp"
#include "libslic3r/Model.hpp"
#include "libslic3r/SLA/Hollowing.hpp"
#include "libslic3r/SLA/SupportPoint.hpp"
#include "libslic3r/SLA/ReprojectPointsOnMesh.hpp"
#include "libslic3r/Polygon.hpp"
#include "libslic3r/Print.hpp"
#include "libslic3r/PrintConfig.hpp"
#include "libslic3r/SLAPrint.hpp"
#include "libslic3r/Utils.hpp"
#include "libslic3r/PresetBundle.hpp"
#include "libslic3r/ClipperUtils.hpp"

#include "GUI.hpp"
#include "GUI_App.hpp"
#include "GUI_ObjectList.hpp"
#include "GUI_Utils.hpp"
#include "GUI_Factories.hpp"
#include "wxExtensions.hpp"
#include "MainFrame.hpp"
#include "format.hpp"
#include "3DScene.hpp"
#include "GLCanvas3D.hpp"
#include "Selection.hpp"
#include "GLToolbar.hpp"
#include "GUI_Preview.hpp"
#include "3DBed.hpp"
#include "PartPlate.hpp"
#include "Camera.hpp"
#include "Mouse3DController.hpp"
#include "Tab.hpp"
#include "Jobs/OrientJob.hpp"
#include "Jobs/ArrangeJob.hpp"
#include "Jobs/FillBedJob.hpp"
#include "Jobs/RotoptimizeJob.hpp"
#include "Jobs/SLAImportJob.hpp"
#include "Jobs/PrintJob.hpp"
#include "Jobs/NotificationProgressIndicator.hpp"
#include "BackgroundSlicingProcess.hpp"
#include "SelectMachine.hpp"
#include "PublishDialog.hpp"
#include "ConfigWizard.hpp"
#include "../Utils/ASCIIFolding.hpp"
#include "../Utils/FixModelByWin10.hpp"
#include "../Utils/UndoRedo.hpp"
#include "../Utils/PresetUpdater.hpp"
#include "../Utils/Process.hpp"
//#include "RemovableDriveManager.hpp"
#include "InstanceCheck.hpp"
#include "NotificationManager.hpp"
#include "PresetComboBoxes.hpp"
#include "MsgDialog.hpp"
#include "ProjectDirtyStateManager.hpp"
#include "Gizmos/GLGizmoSimplify.hpp" // create suggestion notification

// BBS
#include "Widgets/ProgressDialog.hpp"
#include "BBLStatusBar.hpp"
#include "BitmapCache.hpp"
#include "AuxiliaryDialog.hpp"
#include "ParamsDialog.hpp"
#include "Widgets/Label.hpp"
#include "Widgets/RoundedRectangle.hpp"
#include "Widgets/RadioBox.hpp"
#include "Widgets/CheckBox.hpp"
#include "Widgets/Button.hpp"

#include "GUI_ObjectTable.hpp"
#include "libslic3r/Thread.hpp"

#ifdef __APPLE__
#include "Gizmos/GLGizmosManager.hpp"
#endif // __APPLE__

#include <wx/glcanvas.h>    // Needs to be last because reasons :-/
#include "WipeTowerDialog.hpp"

#include "libslic3r/CustomGCode.hpp"
#include "libslic3r/Platform.hpp"
#include "nlohmann/json.hpp"

using boost::optional;
namespace fs = boost::filesystem;
using Slic3r::_3DScene;
using Slic3r::Preset;
using Slic3r::GUI::format_wxstr;
using namespace nlohmann;

static const std::pair<unsigned int, unsigned int> THUMBNAIL_SIZE_3MF = { 256, 256 };

namespace Slic3r {
namespace GUI {

wxDEFINE_EVENT(EVT_SCHEDULE_BACKGROUND_PROCESS,     SimpleEvent);
wxDEFINE_EVENT(EVT_SLICING_UPDATE,                  SlicingStatusEvent);
wxDEFINE_EVENT(EVT_SLICING_COMPLETED,               wxCommandEvent);
wxDEFINE_EVENT(EVT_PROCESS_COMPLETED,               SlicingProcessCompletedEvent);
wxDEFINE_EVENT(EVT_EXPORT_BEGAN,                    wxCommandEvent);
wxDEFINE_EVENT(EVT_EXPORT_FINISHED,                 wxCommandEvent);
wxDEFINE_EVENT(EVT_IMPORT_MODEL_ID,                 wxCommandEvent);
wxDEFINE_EVENT(EVT_DOWNLOAD_PROJECT,                wxCommandEvent);
wxDEFINE_EVENT(EVT_PUBLISH,                         wxCommandEvent);
// BBS: backup & restore
wxDEFINE_EVENT(EVT_RESTORE_PROJECT,                 wxCommandEvent);
wxDEFINE_EVENT(EVT_PRINT_FINISHED,                  wxCommandEvent);
//BBS: repair model
wxDEFINE_EVENT(EVT_REPAIR_MODEL,                    wxCommandEvent);
wxDEFINE_EVENT(EVT_FILAMENT_COLOR_CHANGED,          wxCommandEvent);
wxDEFINE_EVENT(EVT_INSTALL_PLUGIN_NETWORKING,       wxCommandEvent);
wxDEFINE_EVENT(EVT_INSTALL_PLUGIN_HINT,             wxCommandEvent);
wxDEFINE_EVENT(EVT_PREVIEW_ONLY_MODE_HINT,          wxCommandEvent);



bool Plater::has_illegal_filename_characters(const wxString& wxs_name)
{
    std::string name = into_u8(wxs_name);
    return has_illegal_filename_characters(name);
}

bool Plater::has_illegal_filename_characters(const std::string& name)
{
    const char* illegal_characters = "<>:/\\|?*\"";
    for (size_t i = 0; i < std::strlen(illegal_characters); i++)
        if (name.find_first_of(illegal_characters[i]) != std::string::npos)
            return true;

    return false;
}

void Plater::show_illegal_characters_warning(wxWindow* parent)
{
    show_error(parent, _L("Invalid name, the following characters are not allowed:") + " <>:/\\|?*\"");
}

enum SlicedInfoIdx
{
    siFilament_m,
    siFilament_mm3,
    siFilament_g,
    siMateril_unit,
    siCost,
    siEstimatedTime,
    siWTNumbetOfToolchanges,
    siCount
};

enum class LoadFilesType {
    NoFile,
    Single3MF,
    SingleOther,
    Multiple3MF,
    MultipleOther,
    Multiple3MFOther,
};

class SlicedInfo : public wxStaticBoxSizer
{
public:
    SlicedInfo(wxWindow *parent);
    void SetTextAndShow(SlicedInfoIdx idx, const wxString& text, const wxString& new_label="");

private:
    std::vector<std::pair<wxStaticText*, wxStaticText*>> info_vec;
};

SlicedInfo::SlicedInfo(wxWindow *parent) :
    wxStaticBoxSizer(new wxStaticBox(parent, wxID_ANY, _L("Sliced Info")), wxVERTICAL)
{
    GetStaticBox()->SetFont(wxGetApp().bold_font());
    wxGetApp().UpdateDarkUI(GetStaticBox());

    auto *grid_sizer = new wxFlexGridSizer(2, 5, 15);
    grid_sizer->SetFlexibleDirection(wxVERTICAL);

    info_vec.reserve(siCount);

    auto init_info_label = [this, parent, grid_sizer](wxString text_label) {
        auto *text = new wxStaticText(parent, wxID_ANY, text_label);
        text->SetFont(wxGetApp().small_font());
        auto info_label = new wxStaticText(parent, wxID_ANY, "N/A");
        info_label->SetFont(wxGetApp().small_font());
        grid_sizer->Add(text, 0);
        grid_sizer->Add(info_label, 0);
        info_vec.push_back(std::pair<wxStaticText*, wxStaticText*>(text, info_label));
    };

    init_info_label(_L("Used Filament (m)"));
    init_info_label(_L("Used Filament (mm³)"));
    init_info_label(_L("Used Filament (g)"));
    init_info_label(_L("Used Materials"));
    init_info_label(_L("Cost"));
    init_info_label(_L("Estimated time"));
    init_info_label(_L("Filament changes"));

    Add(grid_sizer, 0, wxEXPAND);
    this->Show(false);
}

void SlicedInfo::SetTextAndShow(SlicedInfoIdx idx, const wxString& text, const wxString& new_label/*=""*/)
{
    const bool show = text != "N/A";
    if (show)
        info_vec[idx].second->SetLabelText(text);
    if (!new_label.IsEmpty())
        info_vec[idx].first->SetLabelText(new_label);
    info_vec[idx].first->Show(show);
    info_vec[idx].second->Show(show);
}

static wxString temp_dir;

// Sidebar / private

enum class ActionButtonType : int {
    abReslice,
    abExport,
    abSendGCode
};

struct Sidebar::priv
{
    Plater *plater;

    wxPanel *scrolled;
    PlaterPresetComboBox *combo_print;
    std::vector<PlaterPresetComboBox*> combos_filament;
    int editing_filament = -1;
    wxBoxSizer *sizer_filaments;
    PlaterPresetComboBox *combo_sla_print;
    PlaterPresetComboBox *combo_sla_material;
    PlaterPresetComboBox* combo_printer = nullptr;
    wxBoxSizer *sizer_params;

    //BBS Sidebar widgets
    wxPanel* m_panel_print_title;
    wxStaticText* m_staticText_print_title;
    wxPanel* m_panel_print_content;
    wxComboBox* m_comboBox_print_preset;
    wxStaticLine* m_staticline1;
    StaticBox* m_panel_filament_title;
    wxStaticText* m_staticText_filament_settings;
    ScalableButton *  m_bpButton_add_filament;
    ScalableButton *  m_bpButton_del_filament;
    ScalableButton *  m_bpButton_set_filament;
    wxPanel* m_panel_filament_content;
    wxScrolledWindow* m_scrolledWindow_filament_content;
    wxStaticLine* m_staticline2;
    wxPanel* m_panel_project_title;
    ScalableButton* m_filament_icon = nullptr;
    ScalableButton * m_flushing_volume_btn = nullptr;

    // BBS printer config
    StaticBox* m_panel_printer_title = nullptr;
    ScalableButton* m_printer_icon = nullptr;
    ScalableButton* m_printer_setting = nullptr;
    wxStaticText* m_text_printer_settings = nullptr;
    wxPanel* m_panel_printer_content = nullptr;

    ObjectList          *m_object_list{ nullptr };
    AuxiliaryDialog     *m_auxiliary_dialog{ nullptr };
    ObjectSettings      *object_settings{ nullptr };

    wxButton *btn_export_gcode;
    wxButton *btn_reslice;
    ScalableButton *btn_send_gcode;
    //ScalableButton *btn_eject_device;
    ScalableButton* btn_export_gcode_removable; //exports to removable drives (appears only if removable drive is connected)

    bool                is_collapsed {false};
    Search::OptionsSearcher     searcher;

    priv(Plater *plater) : plater(plater) {}
    ~priv();

    void show_preset_comboboxes();

#ifdef _WIN32
    wxString btn_reslice_tip;
    void show_rich_tip(const wxString& tooltip, wxButton* btn);
    void hide_rich_tip(wxButton* btn);
#endif
};

Sidebar::priv::~priv()
{
    // BBS
    //delete object_manipulation;
    delete object_settings;
    // BBS
#if 0
    delete frequently_changed_parameters;
#endif
}

void Sidebar::priv::show_preset_comboboxes()
{
    const bool showSLA = wxGetApp().preset_bundle->printers.get_edited_preset().printer_technology() == ptSLA;

//BBS
#if 0
    for (size_t i = 0; i < 4; ++i)
        sizer_presets->Show(i, !showSLA);

    for (size_t i = 4; i < 8; ++i) {
        if (sizer_presets->IsShown(i) != showSLA)
            sizer_presets->Show(i, showSLA);
    }

    frequently_changed_parameters->Show(!showSLA);
#endif

    scrolled->GetParent()->Layout();
    scrolled->Refresh();
}

#ifdef _WIN32
using wxRichToolTipPopup = wxCustomBackgroundWindow<wxPopupTransientWindow>;
static wxRichToolTipPopup* get_rtt_popup(wxButton* btn)
{
    auto children = btn->GetChildren();
    for (auto child : children)
        if (child->IsShown())
            return dynamic_cast<wxRichToolTipPopup*>(child);
    return nullptr;
}

void Sidebar::priv::show_rich_tip(const wxString& tooltip, wxButton* btn)
{
    if (tooltip.IsEmpty())
        return;
    wxRichToolTip tip(tooltip, "");
    tip.SetIcon(wxICON_NONE);
    tip.SetTipKind(wxTipKind_BottomRight);
    tip.SetTitleFont(wxGetApp().normal_font());
    tip.SetBackgroundColour(wxGetApp().get_window_default_clr());

    tip.ShowFor(btn);
    // Every call of the ShowFor() creates new RichToolTip and show it.
    // Every one else are hidden.
    // So, set a text color just for the shown rich tooltip
    if (wxRichToolTipPopup* popup = get_rtt_popup(btn)) {
        auto children = popup->GetChildren();
        for (auto child : children) {
            child->SetForegroundColour(wxGetApp().get_label_clr_default());
            // we neen just first text line for out rich tooltip
            return;
        }
    }
}

void Sidebar::priv::hide_rich_tip(wxButton* btn)
{
    if (wxRichToolTipPopup* popup = get_rtt_popup(btn))
        popup->Dismiss();
}
#endif

// Sidebar / public

Sidebar::Sidebar(Plater *parent)
    : wxPanel(parent, wxID_ANY, wxDefaultPosition, wxSize(42 * wxGetApp().em_unit(), -1)), p(new priv(parent))
{
    p->scrolled = new wxPanel(this);
//    p->scrolled->SetScrollbars(0, 100, 1, 2); // ys_DELETE_after_testing. pixelsPerUnitY = 100
    // but this cause the bad layout of the sidebar, when all infoboxes appear.
    // As a result we can see the empty block at the bottom of the sidebar
    // But if we set this value to 5, layout will be better
    //p->scrolled->SetScrollRate(0, 5);
    p->scrolled->SetBackgroundColour(*wxWHITE);


    SetFont(wxGetApp().normal_font());
#ifndef __APPLE__
#ifdef _WIN32
    wxGetApp().UpdateDarkUI(this);
    wxGetApp().UpdateDarkUI(p->scrolled);
#else
    SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
#endif
#endif

    int em = wxGetApp().em_unit();
    //BBS refine layout and styles
    // Sizer in the scrolled area
    auto* scrolled_sizer = m_scrolled_sizer = new wxBoxSizer(wxVERTICAL);
    p->scrolled->SetSizer(scrolled_sizer);

    wxColour title_bg = wxColour(248, 248, 248);
    wxColour inactive_text = wxColour(86, 86, 86);
    wxColour active_text = wxColour(0, 0, 0);
    wxColour static_line_col = wxColour(166, 169, 170);

#ifdef __WINDOWS__
    p->scrolled->SetDoubleBuffered(true);
#endif //__WINDOWS__

    // add printer
    {
        /***************** 1. create printer title bar    **************/
        // 1.1 create title bar resources
        p->m_panel_printer_title = new StaticBox(p->scrolled, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxTAB_TRAVERSAL | wxBORDER_NONE);
        p->m_panel_printer_title->SetBackgroundColor(title_bg);
        p->m_panel_printer_title->SetBackgroundColor2(0xF1F1F1);

        p->m_printer_icon = new ScalableButton(p->m_panel_printer_title, wxID_ANY, "printer");
        p->m_text_printer_settings = new wxStaticText(p->m_panel_printer_title, wxID_ANY, _L("Printer"), wxDefaultPosition, wxDefaultSize, 0);
        p->m_text_printer_settings->Wrap(-1);
        p->m_text_printer_settings->SetFont(Label::Body_14);
        p->m_text_printer_settings->SetBackgroundColour(0xF1F1F1);

        p->m_printer_setting = new ScalableButton(p->m_panel_printer_title, wxID_ANY, "settings");
        p->m_printer_setting->Bind(wxEVT_BUTTON, [this](wxCommandEvent &e) {
            // p->editing_filament = -1;
            // wxGetApp().params_dialog()->Popup();
            // wxGetApp().get_tab(Preset::TYPE_FILAMENT)->restore_last_select_item();
            wxGetApp().run_wizard(ConfigWizard::RR_USER, ConfigWizard::SP_PRINTERS);
            });

        wxBoxSizer* h_sizer_title = new wxBoxSizer(wxHORIZONTAL);
        h_sizer_title->Add(p->m_printer_icon, 0, wxALIGN_CENTRE | wxLEFT | wxRIGHT, em);
        h_sizer_title->Add(p->m_text_printer_settings, 0, wxALIGN_CENTER);
        h_sizer_title->AddStretchSpacer();
        h_sizer_title->Add(p->m_printer_setting, 0, wxALIGN_CENTER);
        h_sizer_title->Add(15 * em / 10, 0, 0, 0, 0);
        h_sizer_title->SetMinSize(-1, 3 * em);

        p->m_panel_printer_title->SetSizer(h_sizer_title);
        p->m_panel_printer_title->Layout();

        // 1.2 Add spliters around title bar
        // add spliter 1
        auto spliter_1 = new ::StaticLine(p->scrolled);
        spliter_1->SetBackgroundColour("#A6A9AA");
        scrolled_sizer->Add(spliter_1, 0, wxEXPAND);

        // add printer title
        scrolled_sizer->Add(p->m_panel_printer_title, 0, wxEXPAND | wxALL, 0);

        // add spliter 2
        auto spliter_2 = new ::StaticLine(p->scrolled);
        spliter_2->SetBackgroundColour("#ACACAC");
        scrolled_sizer->Add(spliter_2, 0, wxEXPAND);


        /*************************** 2. add printer content ************************/
        p->m_panel_printer_content = new wxPanel(p->scrolled, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxTAB_TRAVERSAL);
        p->m_panel_printer_content->SetBackgroundColour(wxColour(255, 255, 255));

        PlaterPresetComboBox* combo_printer = new PlaterPresetComboBox(p->m_panel_printer_content, Preset::TYPE_PRINTER);
        ScalableButton* edit_btn = new ScalableButton(p->m_panel_printer_content, wxID_ANY, "edit");
        edit_btn->SetBackgroundColour(wxColour(255, 255, 255));
        edit_btn->SetToolTip(_L("Click to edit preset"));
        edit_btn->Bind(wxEVT_BUTTON, [this, combo_printer](wxCommandEvent)
            {
                p->editing_filament = 0;
                combo_printer->switch_to_tab();
            });
        combo_printer->edit_btn = edit_btn;
        p->combo_printer = combo_printer;

        wxBoxSizer* vsizer_printer = new wxBoxSizer(wxVERTICAL);
        wxBoxSizer* hsizer_printer = new wxBoxSizer(wxHORIZONTAL);

        hsizer_printer->Add(combo_printer, 1, wxALIGN_CENTER_VERTICAL | wxLEFT, FromDIP(3));
        hsizer_printer->Add(edit_btn, 0, wxALIGN_CENTER_VERTICAL | wxLEFT, FromDIP(3));
        hsizer_printer->Add(FromDIP(8), 0, 0, 0, 0);
        vsizer_printer->Add(hsizer_printer, 0, wxEXPAND, 0);

        // Bed type selection
        wxBoxSizer* bed_type_sizer = new wxBoxSizer(wxHORIZONTAL);
        wxStaticText* bed_type_title = new wxStaticText(p->m_panel_printer_content, wxID_ANY, _L("Bed type"));
        bed_type_title->Wrap(-1);
        bed_type_title->SetFont(Label::Body_14);
        m_bed_type_list = new ComboBox(p->m_panel_printer_content, wxID_ANY, wxString(""), wxDefaultPosition, {-1, FromDIP(30)}, 0, nullptr, wxCB_READONLY);
        const ConfigOptionDef* bed_type_def = print_config_def.get("curr_bed_type");
        if (bed_type_def && bed_type_def->enum_keys_map) {
            for (auto item : *bed_type_def->enum_keys_map)
                m_bed_type_list->AppendString(_L(item.first));
        }

        m_bed_type_list->Select(0);
        bed_type_sizer->Add(bed_type_title, 0, wxLEFT | wxRIGHT | wxALIGN_CENTER_VERTICAL, FromDIP(10));
        bed_type_sizer->Add(m_bed_type_list, 1, wxLEFT | wxRIGHT | wxALIGN_CENTER_VERTICAL | wxEXPAND, FromDIP(10));
        vsizer_printer->Add(bed_type_sizer, 0, wxEXPAND | wxTOP, FromDIP(5));

        p->m_panel_printer_content->SetSizer(vsizer_printer);
        p->m_panel_printer_content->Layout();
        scrolled_sizer->Add(p->m_panel_printer_content, 0, wxTOP | wxEXPAND, FromDIP(5));
        scrolled_sizer->AddSpacer(FromDIP(20));
    }

    // add filament title
    p->m_panel_filament_title = new StaticBox(p->scrolled, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxTAB_TRAVERSAL | wxBORDER_NONE);
    p->m_panel_filament_title->SetBackgroundColor(title_bg);
    p->m_panel_filament_title->SetBackgroundColor2(0xF1F1F1);

    wxBoxSizer* bSizer39;
    bSizer39 = new wxBoxSizer( wxHORIZONTAL );
    p->m_filament_icon = new ScalableButton(p->m_panel_filament_title, wxID_ANY, "filament");
    p->m_staticText_filament_settings = new wxStaticText( p->m_panel_filament_title, wxID_ANY, _L("Filament"), wxDefaultPosition, wxDefaultSize, 0 );
    p->m_staticText_filament_settings->Wrap( -1 );
    p->m_staticText_filament_settings->SetFont(Label::Body_14);
    p->m_staticText_filament_settings->SetBackgroundColour(0xF1F1F1);
    bSizer39->Add(p->m_filament_icon, 0, wxALIGN_CENTER | wxLEFT | wxRIGHT, FromDIP(10));
    bSizer39->Add( p->m_staticText_filament_settings, 0, wxALIGN_CENTER );
    bSizer39->Add(FromDIP(10), 0, 0, 0, 0);
    bSizer39->SetMinSize(-1, FromDIP(30));

    p->m_panel_filament_title->SetSizer( bSizer39 );
    p->m_panel_filament_title->Layout();
    auto spliter_1 = new ::StaticLine(p->scrolled);
    spliter_1->SetBackgroundColour("#A6A9AA");
    scrolled_sizer->Add(spliter_1, 0, wxEXPAND);
    scrolled_sizer->Add(p->m_panel_filament_title, 0, wxEXPAND | wxALL, 0);
    auto spliter_2 = new ::StaticLine(p->scrolled);
    spliter_2->SetBackgroundColour("#ACACAC");
    scrolled_sizer->Add(spliter_2, 0, wxEXPAND);

    // BBS
    // add wiping dialog
    p->m_flushing_volume_btn = new ScalableButton(p->m_panel_filament_title, wxID_ANY, "flush_volumes");
    p->m_flushing_volume_btn->SetToolTip(_L("Flushing volumes"));
    //wiping_dialog_button->SetFont(wxGetApp().normal_font());

    p->m_flushing_volume_btn->Bind(wxEVT_BUTTON, ([parent](wxCommandEvent &e)
        {
            auto& project_config = wxGetApp().preset_bundle->project_config;
            auto& printer_config = wxGetApp().preset_bundle->printers.get_edited_preset().config;
            const std::vector<double>& init_matrix = (project_config.option<ConfigOptionFloats>("flush_volumes_matrix"))->values;
            const std::vector<double>& init_extruders = (project_config.option<ConfigOptionFloats>("flush_volumes_vector"))->values;
            ConfigOption* extra_flush_volume_opt = printer_config.option("nozzle_volume");
            int extra_flush_volume = extra_flush_volume_opt ? (int)extra_flush_volume_opt->getFloat() : 0;
            ConfigOption* flush_multi_opt = project_config.option("flush_multiplier");
            float flush_multiplier = flush_multi_opt ? flush_multi_opt->getFloat() : 1.f;

            const std::vector<std::string> extruder_colours = wxGetApp().plater()->get_extruder_colors_from_plater_config();

            WipingDialog dlg(parent, cast<float>(init_matrix), cast<float>(init_extruders), extruder_colours, extra_flush_volume, flush_multiplier);

            if (dlg.ShowModal() == wxID_OK) {
                std::vector<float> matrix = dlg.get_matrix();
                std::vector<float> extruders = dlg.get_extruders();
                (project_config.option<ConfigOptionFloats>("flush_volumes_matrix"))->values = std::vector<double>(matrix.begin(), matrix.end());
                (project_config.option<ConfigOptionFloats>("flush_volumes_vector"))->values = std::vector<double>(extruders.begin(), extruders.end());
#if !BBL_RELEASE_TO_PUBLIC
                (project_config.option<ConfigOptionFloat>("flush_multiplier"))->set(new ConfigOptionFloat(dlg.get_flush_multiplier()));
#endif

                wxGetApp().plater()->update_project_dirty_from_presets();
                wxPostEvent(parent, SimpleEvent(EVT_SCHEDULE_BACKGROUND_PROCESS, parent));
            }
        }));
    bSizer39->Add(p->m_flushing_volume_btn, 0, wxALIGN_CENTER_VERTICAL | wxLEFT, em);
    bSizer39->Hide(p->m_flushing_volume_btn);

    bSizer39->AddStretchSpacer(1);

    ScalableButton* add_btn = new ScalableButton(p->m_panel_filament_title, wxID_ANY, "add_filament");
    add_btn->Bind(wxEVT_BUTTON, [this, scrolled_sizer](wxCommandEvent& e){
        // BBS: limit filament choices to 16
        if (p->combos_filament.size() >= 16)
            return;

        int filament_count = p->combos_filament.size() + 1;
        wxColour new_col = Plater::get_next_color_for_filament();
        std::string new_color = new_col.GetAsString(wxC2S_HTML_SYNTAX).ToStdString();
        wxGetApp().preset_bundle->set_num_filaments(filament_count, new_color);
        wxGetApp().plater()->on_filaments_change(filament_count);
        wxGetApp().get_tab(Preset::TYPE_PRINT)->update();
    });
    p->m_bpButton_add_filament = add_btn;

    bSizer39->Add(add_btn, 0, wxALIGN_CENTER|wxALL, FromDIP(5));
    bSizer39->Add(FromDIP(10), 0, 0, 0, 0 );

    ScalableButton* del_btn = new ScalableButton(p->m_panel_filament_title, wxID_ANY, "delete_filament");
    del_btn->Bind(wxEVT_BUTTON, [this, scrolled_sizer](wxCommandEvent& e){
        if (p->combos_filament.size() <= 1)
            return;

        size_t filament_count = p->combos_filament.size() - 1;
        if (wxGetApp().preset_bundle->is_the_only_edited_filament(filament_count) || (filament_count == 1)) {
            wxGetApp().get_tab(Preset::TYPE_FILAMENT)->select_preset(wxGetApp().preset_bundle->filament_presets[0], false, "", true);
        }

        if (p->editing_filament >= filament_count) {
            p->editing_filament = 0;
        }

        wxGetApp().preset_bundle->set_num_filaments(filament_count);
        wxGetApp().plater()->on_filaments_change(filament_count);
        wxGetApp().get_tab(Preset::TYPE_PRINT)->update();
    });
    p->m_bpButton_del_filament = del_btn;

    bSizer39->Add(del_btn, 0, wxALIGN_CENTER_VERTICAL, FromDIP(5));
    bSizer39->Add(FromDIP(20), 0, 0, 0, 0);

    ScalableButton* set_btn = new ScalableButton(p->m_panel_filament_title, wxID_ANY, "settings");
    set_btn->Bind(wxEVT_BUTTON, [this](wxCommandEvent& e) {
        // p->editing_filament = -1;
        // wxGetApp().params_dialog()->Popup();
        // wxGetApp().get_tab(Preset::TYPE_FILAMENT)->restore_last_select_item();
        wxGetApp().run_wizard(ConfigWizard::RR_USER, ConfigWizard::SP_FILAMENTS);
        });
    p->m_bpButton_set_filament = set_btn;

    bSizer39->Add(set_btn, 0, wxALIGN_CENTER);
    bSizer39->Add(FromDIP(15), 0, 0, 0, 0);

    // add filament content
    p->m_panel_filament_content = new wxPanel( p->scrolled, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxTAB_TRAVERSAL );
    p->m_panel_filament_content->SetBackgroundColour( wxColour( 255, 255, 255 ) );

    //wxBoxSizer* bSizer_filament_content;
    //bSizer_filament_content = new wxBoxSizer( wxHORIZONTAL );

    // BBS:  filament double columns
    p->sizer_filaments = new wxBoxSizer(wxHORIZONTAL);
    p->sizer_filaments->Add(new wxBoxSizer(wxVERTICAL), 1, wxEXPAND);
    p->sizer_filaments->Add(new wxBoxSizer(wxVERTICAL), 1, wxEXPAND);

    p->combos_filament.push_back(nullptr);

    /* first filament item */
    p->combos_filament[0] = new PlaterPresetComboBox(p->m_panel_filament_content, Preset::TYPE_FILAMENT);
    auto combo_and_btn_sizer = new wxBoxSizer(wxHORIZONTAL);
    // BBS:  filament double columns
    combo_and_btn_sizer->Add(FromDIP(8), 0, 0, 0, 0);
    if (p->combos_filament[0]->clr_picker) {
        p->combos_filament[0]->clr_picker->SetLabel("1");
        combo_and_btn_sizer->Add(p->combos_filament[0]->clr_picker, 0, wxALIGN_CENTER_VERTICAL | wxRIGHT, FromDIP(3));
    }
    combo_and_btn_sizer->Add(p->combos_filament[0], 1, wxALL | wxEXPAND, FromDIP(2))->SetMinSize({-1, FromDIP(30) });

    ScalableButton* edit_btn = new ScalableButton(p->m_panel_filament_content, wxID_ANY, "edit");
    edit_btn->SetBackgroundColour(wxColour(255, 255, 255));
    edit_btn->SetToolTip(_L("Click to edit preset"));

    PlaterPresetComboBox* combobox = p->combos_filament[0];
    edit_btn->Bind(wxEVT_BUTTON, [this, combobox](wxCommandEvent)
        {
            p->editing_filament = 0;
            combobox->switch_to_tab();
        });
    combobox->edit_btn = edit_btn;

    combo_and_btn_sizer->Add(edit_btn, 0, wxALIGN_CENTER_VERTICAL | wxLEFT, FromDIP(3));
    combo_and_btn_sizer->Add(FromDIP(8), 0, 0, 0, 0);

    p->combos_filament[0]->set_filament_idx(0);
    p->sizer_filaments->GetItem((size_t)0)->GetSizer()->Add(combo_and_btn_sizer, 1, wxEXPAND);

    //bSizer_filament_content->Add(p->sizer_filaments, 1, wxALIGN_CENTER | wxALL);
    p->m_panel_filament_content->SetSizer(p->sizer_filaments);
    p->m_panel_filament_content->Layout();
    scrolled_sizer->Add(p->m_panel_filament_content, 0, wxTOP | wxEXPAND, FromDIP(5));
    scrolled_sizer->AddSpacer(FromDIP(20));

    //add project title
    auto params_panel = ((MainFrame*)parent->GetParent())->m_param_panel;
    if (params_panel) {
        params_panel->get_top_panel()->Reparent(p->scrolled);
        auto spliter_1 = new ::StaticLine(p->scrolled);
        spliter_1->SetBackgroundColour("#A6A9AA");
        scrolled_sizer->Add(spliter_1, 0, wxEXPAND);
        spliter_1 = new ::StaticLine(p->scrolled); // double line
        spliter_1->SetBackgroundColour("#A6A9AA");
        scrolled_sizer->Add(spliter_1, 0, wxEXPAND);
        scrolled_sizer->Add(params_panel->get_top_panel(), 0, wxEXPAND);
        auto spliter_2 = new ::StaticLine(p->scrolled);
        spliter_2->SetBackgroundColour("#ACACAC");
        scrolled_sizer->Add(spliter_2, 0, wxEXPAND);
    }

    //add project content
    p->sizer_params = new wxBoxSizer(wxVERTICAL);
    p->m_object_list = new ObjectList(p->scrolled);
    p->sizer_params->Add(p->m_object_list, 1, wxEXPAND | wxTOP, 0);
    scrolled_sizer->Add(p->sizer_params, 2, wxEXPAND | wxLEFT, 0);
    p->m_object_list->Hide();

    p->m_auxiliary_dialog = new AuxiliaryDialog(this);

    // Frequently Object Settings
    p->object_settings = new ObjectSettings(p->scrolled);
#if !NEW_OBJECT_SETTING
    p->object_settings->Hide();
    p->sizer_params->Add(p->object_settings->get_sizer(), 0, wxEXPAND | wxTOP, 5 * em / 10);
#else
    if (params_panel) {
        params_panel->Reparent(p->scrolled);
        scrolled_sizer->Add(params_panel, 3, wxEXPAND);
    }
#endif

    auto *sizer = new wxBoxSizer(wxVERTICAL);
    sizer->Add(p->scrolled, 1, wxEXPAND);
    SetSizer(sizer);
}

Sidebar::~Sidebar() {}

void Sidebar::init_filament_combo(PlaterPresetComboBox **combo, const int filament_idx) {
    *combo = new PlaterPresetComboBox(p->m_panel_filament_content, Slic3r::Preset::TYPE_FILAMENT);
    (*combo)->set_filament_idx(filament_idx);

    auto combo_and_btn_sizer = new wxBoxSizer(wxHORIZONTAL);

    // BBS:  filament double columns
    int em = wxGetApp().em_unit();
    combo_and_btn_sizer->Add(FromDIP(8), 0, 0, 0, 0 );
    (*combo)->clr_picker->SetLabel(wxString::Format("%d", filament_idx + 1));
    combo_and_btn_sizer->Add((*combo)->clr_picker, 0, wxALIGN_CENTER_VERTICAL | wxRIGHT, FromDIP(3));
    combo_and_btn_sizer->Add(*combo, 1, wxALL | wxEXPAND, FromDIP(2))->SetMinSize({-1, FromDIP(30)});

    /* BBS hide del_btn
    ScalableButton* del_btn = new ScalableButton(p->m_panel_filament_content, wxID_ANY, "delete_filament");
    del_btn->Bind(wxEVT_BUTTON, [this](wxCommandEvent& e){
        int extruder_count = std::max(1, (int)p->combos_filament.size() - 1);

        update_objects_list_filament_column(std::max(1, extruder_count - 1));
        on_filaments_change(extruder_count);
        wxGetApp().preset_bundle->printers.get_edited_preset().set_num_extruders(extruder_count);
        wxGetApp().preset_bundle->update_multi_material_filament_presets();
    });

    combo_and_btn_sizer->Add(32 * em / 10, 0, 0, 0, 0);
    combo_and_btn_sizer->Add(del_btn, 0, wxALIGN_CENTER_VERTICAL, 5 * em / 10);
    */
    ScalableButton* edit_btn = new ScalableButton(p->m_panel_filament_content, wxID_ANY, "edit");
    edit_btn->SetBackgroundColour(wxColour(255, 255, 255));
    edit_btn->SetToolTip(_L("Click to edit preset"));

    PlaterPresetComboBox* combobox = (*combo);
    edit_btn->Bind(wxEVT_BUTTON, [this, combobox, filament_idx](wxCommandEvent)
        {
            p->editing_filament = filament_idx; // sync with TabPresetComboxBox's m_filament_idx
            combobox->switch_to_tab();
        });
    combobox->edit_btn = edit_btn;

    combo_and_btn_sizer->Add(edit_btn, 0, wxALIGN_CENTER_VERTICAL | wxLEFT, FromDIP(3));

    combo_and_btn_sizer->Add(FromDIP(8), 0, 0, 0, 0);

    // BBS:  filament double columns
    auto side = filament_idx % 2;
    auto /***/sizer_filaments = this->p->sizer_filaments->GetItem(side)->GetSizer();
    if (side == 1 && filament_idx > 1) sizer_filaments->Remove(filament_idx / 2);
    sizer_filaments->Add(combo_and_btn_sizer, 1, wxALIGN_CENTER | wxEXPAND);
    if (side == 0) {
        sizer_filaments = this->p->sizer_filaments->GetItem(1)->GetSizer();
        sizer_filaments->AddStretchSpacer(1);
    }
}

void Sidebar::remove_unused_filament_combos(const size_t current_extruder_count)
{
    if (current_extruder_count >= p->combos_filament.size())
        return;
    while (p->combos_filament.size() > current_extruder_count) {
        const int last = p->combos_filament.size() - 1;
        auto sizer_filaments = this->p->sizer_filaments->GetItem(last % 2)->GetSizer();
        sizer_filaments->Remove(last / 2);
        (*p->combos_filament[last]).Destroy();
        p->combos_filament.pop_back();
    }
    // BBS:  filament double columns
    auto sizer_filaments0 = this->p->sizer_filaments->GetItem((size_t)0)->GetSizer();
    auto sizer_filaments1 = this->p->sizer_filaments->GetItem(1)->GetSizer();
    if (current_extruder_count < 2) {
        sizer_filaments1->Clear();
    } else {
        size_t c0 = sizer_filaments0->GetChildren().GetCount();
        size_t c1 = sizer_filaments1->GetChildren().GetCount();
        if (c0 < c1)
            sizer_filaments1->Remove(c1 - 1);
        else if (c0 > c1)
            sizer_filaments1->AddStretchSpacer(1);
    }
}

void Sidebar::update_all_preset_comboboxes()
{
    PresetBundle &preset_bundle = *wxGetApp().preset_bundle;
    const auto print_tech = preset_bundle.printers.get_edited_preset().printer_technology();

    // Update the print choosers to only contain the compatible presets, update the dirty flags.
    //BBS

    // Update the printer choosers, update the dirty flags.
    //p->combo_printer->update();
    // Update the filament choosers to only contain the compatible presets, update the color preview,
    // update the dirty flags.
    if (print_tech == ptFFF) {
        for (PlaterPresetComboBox* cb : p->combos_filament)
            cb->update();
    }

    if (p->combo_printer)
        p->combo_printer->update();
}

void Sidebar::update_presets(Preset::Type preset_type)
{
    PresetBundle &preset_bundle = *wxGetApp().preset_bundle;
    const auto print_tech = preset_bundle.printers.get_edited_preset().printer_technology();

    BOOST_LOG_TRIVIAL(debug) << __FUNCTION__ << boost::format(": enter, preset_type %1%")%preset_type;
    switch (preset_type) {
    case Preset::TYPE_FILAMENT:
    {
        // BBS
#if 0
        const size_t extruder_cnt = print_tech != ptFFF ? 1 :
                                dynamic_cast<ConfigOptionFloats*>(preset_bundle.printers.get_edited_preset().config.option("nozzle_diameter"))->values.size();
        const size_t filament_cnt = p->combos_filament.size() > extruder_cnt ? extruder_cnt : p->combos_filament.size();
#else
        const size_t filament_cnt = p->combos_filament.size();
#endif
        const std::string &name = preset_bundle.filaments.get_selected_preset_name();
        if (p->editing_filament >= 0) {
            preset_bundle.set_filament_preset(p->editing_filament, name);
        } else if (filament_cnt == 1) {
            // Single filament printer, synchronize the filament presets.
            preset_bundle.set_filament_preset(0, name);
        }

        for (size_t i = 0; i < filament_cnt; i++)
            p->combos_filament[i]->update();

        break;
    }

    case Preset::TYPE_PRINT:
        //p->combo_print->update();
        break;

    case Preset::TYPE_SLA_PRINT:
        ;// p->combo_sla_print->update();
        break;

    case Preset::TYPE_SLA_MATERIAL:
        ;// p->combo_sla_material->update();
        break;

    case Preset::TYPE_PRINTER:
    {
        update_all_preset_comboboxes();
        p->show_preset_comboboxes();
        break;
    }

    default: break;
    }

    // Synchronize config.ini with the current selections.
    wxGetApp().preset_bundle->export_selections(*wxGetApp().app_config);

    BOOST_LOG_TRIVIAL(debug) << __FUNCTION__ << boost::format(": exit.");
}

//BBS
void Sidebar::update_presets_from_to(Slic3r::Preset::Type preset_type, std::string from, std::string to)
{
    PresetBundle &preset_bundle = *wxGetApp().preset_bundle;

    BOOST_LOG_TRIVIAL(debug) << __FUNCTION__ << boost::format(": enter, preset_type %1%, from %2% to %3%")%preset_type %from %to;

    switch (preset_type) {
    case Preset::TYPE_FILAMENT:
    {
        const size_t filament_cnt = p->combos_filament.size();
        for (auto it = preset_bundle.filament_presets.begin(); it != preset_bundle.filament_presets.end(); it++)
        {
            if ((*it).compare(from) == 0) {
                (*it) = to;
            }
        }
        for (size_t i = 0; i < filament_cnt; i++)
            p->combos_filament[i]->update();
        break;
    }

    default: break;
    }

    // Synchronize config.ini with the current selections.
    wxGetApp().preset_bundle->export_selections(*wxGetApp().app_config);

    BOOST_LOG_TRIVIAL(debug) << __FUNCTION__ << boost::format(": exit!");
}

void Sidebar::change_top_border_for_mode_sizer(bool increase_border)
{
    // BBS
#if 0
    if (p->mode_sizer) {
        p->mode_sizer->set_items_flag(increase_border ? wxTOP : 0);
        p->mode_sizer->set_items_border(increase_border ? int(0.5 * wxGetApp().em_unit()) : 0);
    }
#endif
}

void Sidebar::msw_rescale()
{
    SetMinSize(wxSize(42 * wxGetApp().em_unit(), -1));
    p->m_panel_printer_title->GetSizer()->SetMinSize(-1, 3 * wxGetApp().em_unit());
    p->m_panel_filament_title->GetSizer()
        ->SetMinSize(-1, 3 * wxGetApp().em_unit());
    p->m_printer_icon->msw_rescale();
    p->m_printer_setting->msw_rescale();
    p->m_filament_icon->msw_rescale();
    p->m_bpButton_add_filament->msw_rescale();
    p->m_bpButton_del_filament->msw_rescale();
    p->m_bpButton_set_filament->msw_rescale();
    p->m_flushing_volume_btn->msw_rescale();
    //BBS
    m_bed_type_list->Rescale();
    m_bed_type_list->SetMinSize({-1, 3 * wxGetApp().em_unit()});
#if 0
    if (p->mode_sizer)
        p->mode_sizer->msw_rescale();
#endif

    //for (PlaterPresetComboBox* combo : std::vector<PlaterPresetComboBox*> { p->combo_print,
    //                                                            //p->combo_sla_print,
    //                                                            //p->combo_sla_material,
    //                                                            //p->combo_printer
    //                                                            } )
    //    combo->msw_rescale();
    p->combo_printer->msw_rescale();
    for (PlaterPresetComboBox* combo : p->combos_filament)
        combo->msw_rescale();

    // BBS
    //p->frequently_changed_parameters->msw_rescale();
    //obj_list()->msw_rescale();
    // BBS TODO: add msw_rescale for newly added windows
    // BBS
    //p->object_manipulation->msw_rescale();
    p->object_settings->msw_rescale();

    // BBS
#if 0
    p->object_info->msw_rescale();

    p->btn_send_gcode->msw_rescale();
//    p->btn_eject_device->msw_rescale();
    p->btn_export_gcode_removable->msw_rescale();
#ifdef _WIN32
    const int scaled_height = p->btn_export_gcode_removable->GetBitmapHeight();
#else
    const int scaled_height = p->btn_export_gcode_removable->GetBitmapHeight() + 4;
#endif
    p->btn_export_gcode->SetMinSize(wxSize(-1, scaled_height));
    p->btn_reslice     ->SetMinSize(wxSize(-1, scaled_height));
#endif
    p->scrolled->Layout();

    p->searcher.dlg_msw_rescale();
}

void Sidebar::sys_color_changed()
{
#ifdef _WIN32
    wxWindowUpdateLocker noUpdates(this);

#if 0
    for (wxWindow* win : std::vector<wxWindow*>{ this, p->sliced_info->GetStaticBox(), p->object_info->GetStaticBox(), p->btn_reslice, p->btn_export_gcode })
        wxGetApp().UpdateDarkUI(win);
    p->object_info->msw_rescale();

    for (wxWindow* win : std::vector<wxWindow*>{ p->scrolled, p->presets_panel })
        wxGetApp().UpdateAllStaticTextDarkUI(win);
#endif
    for (wxWindow* btn : std::vector<wxWindow*>{ p->btn_reslice, p->btn_export_gcode })
        wxGetApp().UpdateDarkUI(btn, true);

    // BBS
#if 0
    if (p->mode_sizer)
        p->mode_sizer->msw_rescale();
    p->frequently_changed_parameters->sys_color_changed();
#endif
    p->object_settings->sys_color_changed();
#endif

    //BBS: remove print related combos
#if 0
    for (PlaterPresetComboBox* combo : std::vector<PlaterPresetComboBox*>{  p->combo_print,
                                                                p->combo_sla_print,
                                                                p->combo_sla_material,
                                                                p->combo_printer })
        combo->sys_color_changed();
#endif
    for (PlaterPresetComboBox* combo : p->combos_filament)
        combo->sys_color_changed();

    // BBS
    //obj_list()->sys_color_changed();
    // BBS
    //p->object_manipulation->sys_color_changed();

    // btn...->msw_rescale() updates icon on button, so use it
    //p->btn_send_gcode->msw_rescale();
//    p->btn_eject_device->msw_rescale();
    //p->btn_export_gcode_removable->msw_rescale();

    p->scrolled->Layout();

    p->searcher.dlg_sys_color_changed();
}

void Sidebar::search()
{
    p->searcher.search();
}

void Sidebar::jump_to_option(const std::string& opt_key, Preset::Type type, const std::wstring& category)
{
    //const Search::Option& opt = p->searcher.get_option(opt_key, type);
    if (type == Preset::TYPE_PRINT) {
        auto tab = dynamic_cast<TabPrintModel*>(wxGetApp().params_panel()->get_current_tab());
        if (tab && tab->has_key(opt_key)) {
            tab->activate_option(opt_key, category);
            return;
        }
        wxGetApp().params_panel()->switch_to_global();
    }
    wxGetApp().get_tab(type)->activate_option(opt_key, category);
}

void Sidebar::jump_to_option(size_t selected)
{
    const Search::Option& opt = p->searcher.get_option(selected);
    jump_to_option(opt.opt_key(), opt.type, opt.category);

    // Switch to the Settings NotePad
//    wxGetApp().mainframe->select_tab();
}

// BBS. Move logic from Plater::on_extruders_change() to Sidebar::on_filaments_change().
void Sidebar::on_filaments_change(size_t num_filaments)
{
    auto& choices = combos_filament();

    if (num_filaments == choices.size())
        return;

    if (choices.size() == 1 || num_filaments == 1)
        choices[0]->GetDropDown().Invalidate();

    wxWindowUpdateLocker noUpdates_scrolled_panel(this);

    size_t i = choices.size();
    while (i < num_filaments)
    {
        PlaterPresetComboBox* choice/*{ nullptr }*/;
        init_filament_combo(&choice, i);
        choices.push_back(choice);

        // initialize selection
        choice->update();
        ++i;
    }

    // remove unused choices if any
    remove_unused_filament_combos(num_filaments);

    auto sizer = p->m_panel_filament_title->GetSizer();
    if (p->m_flushing_volume_btn != nullptr && sizer != nullptr) {
        if (num_filaments > 1)
            sizer->Show(p->m_flushing_volume_btn);
        else
            sizer->Hide(p->m_flushing_volume_btn);
    }

    p->m_panel_filament_title->Layout();
    p->m_panel_filament_title->Refresh();
    update_ui_from_settings();
}

void Sidebar::on_bed_type_change(BedType bed_type)
{
    if (m_bed_type_list != nullptr)
        m_bed_type_list->SetSelection(bed_type);
}

void Sidebar::load_ams_list(std::map<std::string, Ams *> const &list)
{
    std::vector<DynamicPrintConfig> filament_ams_list;
    for (auto ams : list) {
        for (auto tray : ams.second->trayList) {
            if (tray.second->setting_id.empty())
                continue;
            DynamicPrintConfig ams;
            auto & filaments = wxGetApp().preset_bundle->filaments.get_presets();
            auto iter = std::find_if(filaments.begin(), filaments.end(),
                [&tray](auto &f) { return f.filament_id == tray.second->setting_id; });
            if (iter != filaments.end()) {
                ams.set_key_value("filament_settings_id", new ConfigOptionStrings{tray.second->setting_id});
            } else {
                /* std::shared_ptr<std::map<std::string, std::string>> preset(new std::map<std::string, std::string>);
                (*preset)->setting_id = tray.second->setting_id;
                ams.set_key_value("filament_settings_id", new ConfigOptionStrings{tray.second->setting_id});
                //TODO: comment it currently
                NetworkAgent* agent = wxGetApp().getAgent();
                if (agent) {
                    agent->get_setting(tray.second->setting_id, *preset, [preset] {
                        wxGetApp().CallAfter([preset] {
                            if ((*preset)->name.empty())
                                return;
                            PresetsConfigSubstitutions substitutions;
                            wxGetApp().preset_bundle->filaments.load_user_presets({{(*preset)->name, *preset}},
                                    PRESET_FILAMENT_NAME, substitutions, ForwardCompatibilitySubstitutionRule::Enable);
                            auto & ams_list = wxGetApp().preset_bundle->filament_ams_list;
                            for (auto& ams : ams_list) {
                                if (ams.opt_string("filament_settings_id", 0u) == (*preset)->setting_id) {
                                    ams.set_key_value("filament_settings_id", new ConfigOptionStrings{(*preset)->name});
                                    for (auto c : wxGetApp().sidebar().combos_filament()) c->update();
                                    break;
                                }
                            }
                        });
                    });
                }
                */
                continue;
            }
            ams.set_key_value("filament_colour", new ConfigOptionStrings{"#" + tray.second->color.substr(0, 6)});
            filament_ams_list.emplace_back(std::move(ams));
        }
    }
    wxGetApp().preset_bundle->filament_ams_list = filament_ams_list;
    for (auto c : p->combos_filament)
        c->update();
}

ObjectList* Sidebar::obj_list()
{
    // BBS
    //return obj_list();
    return p->m_object_list;
}

AuxiliaryList* Sidebar::aux_list()
{
    return p->m_auxiliary_dialog->aux_list();
}

ObjectSettings* Sidebar::obj_settings()
{
    return p->object_settings;
}

wxPanel* Sidebar::scrolled_panel()
{
    return p->scrolled;
}

wxPanel* Sidebar::print_panel()
{
    return p->m_panel_print_content;
}

wxPanel* Sidebar::filament_panel()
{
    return p->m_panel_filament_content;
}

ConfigOptionsGroup* Sidebar::og_freq_chng_params(const bool is_fff)
{
    // BBS
#if 0
    return p->frequently_changed_parameters->get_og(is_fff);
#endif
    return NULL;
}

wxButton* Sidebar::get_wiping_dialog_button()
{
#if 0
    return p->frequently_changed_parameters->get_wiping_dialog_button();
#endif
    return NULL;
}

void Sidebar::enable_buttons(bool enable)
{
#if 0
    p->btn_reslice->Enable(enable);
    p->btn_export_gcode->Enable(enable);
    p->btn_send_gcode->Enable(enable);
//    p->btn_eject_device->Enable(enable);
    p->btn_export_gcode_removable->Enable(enable);
#endif
}

bool Sidebar::show_reslice(bool show)          const { return p->btn_reslice->Show(show); }
bool Sidebar::show_export(bool show)           const { return p->btn_export_gcode->Show(show); }
bool Sidebar::show_send(bool show)             const { return p->btn_send_gcode->Show(show); }
bool Sidebar::show_export_removable(bool show) const { return p->btn_export_gcode_removable->Show(show); }
//bool Sidebar::show_eject(bool show)            const { return p->btn_eject_device->Show(show); }
//bool Sidebar::get_eject_shown()                const { return p->btn_eject_device->IsShown(); }

bool Sidebar::is_multifilament()
{
    return p->combos_filament.size() > 1;
}

static std::vector<Search::InputInfo> get_search_inputs(ConfigOptionMode mode)
{
    std::vector<Search::InputInfo> ret {};

    auto& tabs_list = wxGetApp().tabs_list;
    auto print_tech = wxGetApp().preset_bundle->printers.get_selected_preset().printer_technology();
    for (auto tab : tabs_list)
        if (tab->supports_printer_technology(print_tech))
            ret.emplace_back(Search::InputInfo {tab->get_config(), tab->type(), mode});

    return ret;
}

void Sidebar::update_searcher()
{
    p->searcher.init(get_search_inputs(m_mode));
}

void Sidebar::update_mode()
{
    m_mode = wxGetApp().get_mode();

    //BBS: remove print related combos
    update_searcher();

    wxWindowUpdateLocker noUpdates(this);

    // BBS
    //obj_list()->get_sizer()->Show(m_mode > comSimple);

    obj_list()->unselect_objects();
    obj_list()->update_selections();
//    obj_list()->update_object_menu();

    Layout();
}

bool Sidebar::is_collapsed() { return p->is_collapsed; }

void Sidebar::collapse(bool collapse)
{
    p->is_collapsed = collapse;

    this->Show(!collapse);
    p->plater->Layout();

    // save collapsing state to the AppConfig
    //if (wxGetApp().is_editor())
    //    wxGetApp().app_config->set_bool("collapsed_sidebar", collapse);
}

#ifdef _MSW_DARK_MODE
void Sidebar::show_mode_sizer(bool show)
{
    p->mode_sizer->Show(show);
}
#endif

void Sidebar::update_ui_from_settings()
{
    // BBS
    //p->object_manipulation->update_ui_from_settings();
    // update Cut gizmo, if it's open
    p->plater->canvas3D()->update_gizmos_on_off_state();
    p->plater->set_current_canvas_as_dirty();
    p->plater->get_current_canvas3D()->request_extra_frame();
#if 0
    p->object_list->apply_volumes_order();
#endif
}

bool Sidebar::show_object_list(bool show) const
{
    if (!p->m_object_list->Show(show))
        return false;
    p->scrolled->Layout();
    return true;
}

bool Sidebar::show_auxiliary_dialog() const
{
    p->m_auxiliary_dialog->Reparent(wxGetApp().mainframe);
    return p->m_auxiliary_dialog->ShowModal();
}

std::vector<PlaterPresetComboBox*>& Sidebar::combos_filament()
{
    return p->combos_filament;
}

Search::OptionsSearcher& Sidebar::get_searcher()
{
    return p->searcher;
}

std::string& Sidebar::get_search_line()
{
    return p->searcher.search_string();
}

// Plater::DropTarget

class PlaterDropTarget : public wxFileDropTarget
{
public:
    PlaterDropTarget(Plater* plater) : m_plater(plater) { this->SetDefaultAction(wxDragCopy); }

    virtual bool OnDropFiles(wxCoord x, wxCoord y, const wxArrayString &filenames);

    void handleOnIdle(wxIdleEvent & event);

private:
    Plater* m_plater;
    wxArrayString m_filenames;
};

bool PlaterDropTarget::OnDropFiles(wxCoord x, wxCoord y, const wxArrayString &filenames)
{
#ifdef WIN32
    // hides the system icon
    this->MSWUpdateDragImageOnLeave();
#endif // WIN32

    BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(": drag %1% files into app")%filenames.size();
    m_filenames = filenames;
    wxGetApp().Bind(wxEVT_IDLE, &PlaterDropTarget::handleOnIdle, this);
    return true;
}

void PlaterDropTarget::handleOnIdle(wxIdleEvent &event)
{
    wxGetApp().mainframe->Raise();
    wxGetApp().Unbind(wxEVT_IDLE, &PlaterDropTarget::handleOnIdle, this);
    if (m_plater != nullptr) {
        m_plater->load_files(m_filenames);
        wxGetApp().mainframe->update_title();
    }
    //m_filenames.clear();
}

// State to manage showing after export notifications and device ejecting
enum ExportingStatus{
    NOT_EXPORTING,
    EXPORTING_TO_REMOVABLE,
    EXPORTING_TO_LOCAL
};

// Plater / private
struct Plater::priv
{
    // PIMPL back pointer ("Q-Pointer")
    Plater *q;
    MainFrame *main_frame;

    MenuFactory menus;

    SelectMachineDialog* m_select_machine_dlg = nullptr;
    PublishDialog *m_publish_dlg = nullptr;

    // Data
    Slic3r::DynamicPrintConfig *config;        // FIXME: leak?
    Slic3r::Print               fff_print;
    Slic3r::SLAPrint            sla_print;
    Slic3r::Model               model;
    PrinterTechnology           printer_technology = ptFFF;
    Slic3r::GCodeProcessorResult gcode_result;

    // GUI elements
    wxSizer* panel_sizer{ nullptr };
    wxPanel* current_panel{ nullptr };
    std::vector<wxPanel*> panels;
    Sidebar *sidebar;
    Bed3D bed;
    Camera camera;
    //BBS: partplate related structure
    PartPlateList partplate_list;
    //BBS: add a flag to ignore cancel event
    bool m_ignore_event{false};
    bool m_slice_all{false};
    bool m_is_slicing {false};
    bool m_is_publishing {false};
    int m_cur_slice_plate;
    //BBS: add popup object table logic
    //ObjectTableDialog* m_popup_table{ nullptr };

#if ENABLE_ENVIRONMENT_MAP
    GLTexture environment_texture;
#endif // ENABLE_ENVIRONMENT_MAP
    Mouse3DController mouse3d_controller;
    View3D* view3D;
    // BBS
    //GLToolbar view_toolbar;
    GLToolbar collapse_toolbar;
    Preview *preview;
    AssembleView* assemble_view { nullptr };
    bool first_enter_assemble{ true };
    std::unique_ptr<NotificationManager> notification_manager;

    ProjectDirtyStateManager dirty_state;

    BackgroundSlicingProcess    background_process;
    bool suppressed_backround_processing_update { false };

    // Jobs defined inside the group class will be managed so that only one can
    // run at a time. Also, the background process will be stopped if a job is
    // started. It is up the the plater to ensure that the background slicing
    // can't be restarted while a ui job is still running.
    class Jobs: public ExclusiveJobGroup
    {
        priv *m;
        size_t m_arrange_id, m_fill_bed_id, m_rotoptimize_id, m_sla_import_id, m_orient_id;
        std::shared_ptr<NotificationProgressIndicator> m_pri;
        //BBS
        size_t m_print_id;

        void before_start() override { m->background_process.stop(); }

    public:
        Jobs(priv *_m) :
            m(_m),
            m_pri{std::make_shared<NotificationProgressIndicator>(m->notification_manager.get())}
        {
            m_arrange_id = add_job(std::make_unique<ArrangeJob>(m_pri, m->q));
            m_orient_id = add_job(std::make_unique<OrientJob>(m_pri, m->q));
            m_fill_bed_id = add_job(std::make_unique<FillBedJob>(m_pri, m->q));
            m_rotoptimize_id = add_job(std::make_unique<RotoptimizeJob>(m_pri, m->q));
            m_sla_import_id = add_job(std::make_unique<SLAImportJob>(m_pri, m->q));
            //BBS add print id
            m_print_id = add_job(std::make_unique<PrintJob>(m_pri, m->q));
        }

        void arrange()
        {
            m->take_snapshot("Arrange");
            start(m_arrange_id);
        }

        void orient()
        {
            m->take_snapshot("Orient");
            start(m_orient_id);
        }

        void fill_bed()
        {
            m->take_snapshot("Fill bed");
            start(m_fill_bed_id);
        }

        void optimize_rotation()
        {
            m->take_snapshot("Optimize Rotation");
            start(m_rotoptimize_id);
        }

        void import_sla_arch()
        {
            m->take_snapshot("Import SLA archive");
            start(m_sla_import_id);
        }

        //BBS bbl printing job
        void print()
        {
            start(m_print_id);
        }
    } m_ui_jobs;

    int                         m_job_prepare_state;

    bool                        delayed_scene_refresh;
    std::string                 delayed_error_message;

    wxTimer                     background_process_timer;

    std::string                 label_btn_export;
    std::string                 label_btn_send;

    bool                        show_render_statistic_dialog{ false };

    static const std::regex pattern_bundle;
    static const std::regex pattern_3mf;
    static const std::regex pattern_zip_amf;
    static const std::regex pattern_any_amf;
    static const std::regex pattern_prusa;

    priv(Plater *q, MainFrame *main_frame);
    ~priv();

    bool is_project_dirty() const { return dirty_state.is_dirty(); }
    bool is_presets_dirty() const { return dirty_state.is_presets_dirty(); }
    void update_project_dirty_from_presets()
    {
        // BBS: backup
        Slic3r::put_other_changes();
        dirty_state.update_from_presets();
    }
    int save_project_if_dirty(const wxString& reason) {
        int res = wxID_NO;
        if (dirty_state.is_dirty()) {
            MainFrame* mainframe = wxGetApp().mainframe;
            if (mainframe->can_save_as()) {
                wxString suggested_project_name;
                wxString project_name = suggested_project_name = get_project_filename(".3mf");
                if (suggested_project_name.IsEmpty()) {
                    fs::path output_file = get_export_file_path(FT_3MF);
                    suggested_project_name = output_file.empty() ? _L("Untitled") : from_u8(output_file.stem().string());
                }
                res = MessageDialog(mainframe, reason + "\n" + format_wxstr(_L("Do you want to save changes to \"%1%\"?"), suggested_project_name),
                                    wxString(SLIC3R_APP_FULL_NAME), wxYES_NO | wxCANCEL).ShowModal();
                if (res == wxID_YES)
                    if (!mainframe->save_project_as(project_name))
                        res = wxID_CANCEL;
            }
        }
        return res;
    }
    void reset_project_dirty_after_save() { m_undo_redo_stack_main.mark_current_as_saved(); dirty_state.reset_after_save(); }
    void reset_project_dirty_initial_presets() { dirty_state.reset_initial_presets(); }

#if ENABLE_PROJECT_DIRTY_STATE_DEBUG_WINDOW
    void render_project_state_debug_window() const { dirty_state.render_debug_window(); }
#endif // ENABLE_PROJECT_DIRTY_STATE_DEBUG_WINDOW

    enum class UpdateParams {
        FORCE_FULL_SCREEN_REFRESH          = 1,
        FORCE_BACKGROUND_PROCESSING_UPDATE = 2,
        POSTPONE_VALIDATION_ERROR_MESSAGE  = 4,
    };
    void update(unsigned int flags = 0);
    void select_view(const std::string& direction);
    //BBS: add no_slice option
    void select_view_3D(const std::string& name, bool no_slice = true);
    void select_next_view_3D();

    bool is_preview_shown() const { return current_panel == preview; }
    bool is_preview_loaded() const { return preview->is_loaded(); }
    bool is_view3D_shown() const { return current_panel == view3D; }
    bool is_assemble_view_show() const { return current_panel == assemble_view; }

    bool are_view3D_labels_shown() const { return (current_panel == view3D) && view3D->get_canvas3d()->are_labels_shown(); }
    void show_view3D_labels(bool show) { if (current_panel == view3D) view3D->get_canvas3d()->show_labels(show); }

    bool is_sidebar_collapsed() const   { return sidebar->is_collapsed(); }
    void collapse_sidebar(bool collapse);

    void set_current_canvas_as_dirty();
    GLCanvas3D* get_current_canvas3D();
    void unbind_canvas_event_handlers();
    void reset_canvas_volumes();

    // BBS
    bool init_collapse_toolbar();

    // BBS
    void hide_select_machine_dlg() { m_select_machine_dlg->EndModal(wxID_OK); }

    void update_preview_bottom_toolbar();

    void reset_gcode_toolpaths();

    void reset_all_gizmos();
    void apply_free_camera_correction(bool apply = true);
    void update_ui_from_settings();
    // BBS
    std::shared_ptr<BBLStatusBar> statusbar();
    std::string get_config(const std::string &key) const;
    BoundingBoxf bed_shape_bb() const;
    BoundingBox scaled_bed_shape_bb() const;

    // BBS: backup & restore
    std::vector<size_t> load_files(const std::vector<fs::path>& input_files, LoadStrategy strategy, bool ask_multi = false);
    std::vector<size_t> load_model_objects(const ModelObjectPtrs& model_objects, bool allow_negative_z = false, bool split_object = false);

    fs::path get_export_file_path(GUI::FileType file_type);
    wxString get_export_file(GUI::FileType file_type);

    // BBS
    void load_auxiliary_files();

    const Selection& get_selection() const;
    Selection& get_selection();
    Selection& get_curr_selection();

    int get_selected_object_idx() const;
    int get_selected_volume_idx() const;
    void selection_changed();
    void object_list_changed();

    // BBS
    void select_curr_plate_all();
    void remove_curr_plate_all();

    void select_all();
    void deselect_all();
    void remove(size_t obj_idx);
    void delete_object_from_model(size_t obj_idx, bool refresh_immediately = true); //BBS
    void delete_all_objects_from_model();
    void reset(bool apply_presets_change = false);
    void mirror(Axis axis);
    void split_object();
    void split_volume();
    void scale_selection_to_fit_print_volume();

    // Return the active Undo/Redo stack. It may be either the main stack or the Gimzo stack.
    Slic3r::UndoRedo::Stack& undo_redo_stack() { assert(m_undo_redo_stack_active != nullptr); return *m_undo_redo_stack_active; }
    Slic3r::UndoRedo::Stack& undo_redo_stack_main() { return m_undo_redo_stack_main; }
    void enter_gizmos_stack();
    bool leave_gizmos_stack();

    void take_snapshot(const std::string& snapshot_name, UndoRedo::SnapshotType snapshot_type = UndoRedo::SnapshotType::Action);
    /*void take_snapshot(const wxString& snapshot_name, UndoRedo::SnapshotType snapshot_type = UndoRedo::SnapshotType::Action)
        { this->take_snapshot(std::string(snapshot_name.ToUTF8().data()), snapshot_type); }*/
    int  get_active_snapshot_index();

    void undo();
    void redo();
    void undo_redo_to(size_t time_to_load);

    // BBS: backup
    bool up_to_date(bool saved, bool backup);

    void suppress_snapshots()   { m_prevent_snapshots++; }
    void allow_snapshots()      { m_prevent_snapshots--; }
    // BBS: single snapshot
    void single_snapshots_enter(SingleSnapshot *single)
    {
        if (m_single == nullptr) m_single = single;
    }
    void single_snapshots_leave(SingleSnapshot *single)
    {
        if (m_single == single) m_single = nullptr;
    }

    void process_validation_warning(StringObjectException const &warning) const;

    bool background_processing_enabled() const {
#ifdef SUPPORT_BACKGROUND_PROCESSING
        return this->get_config("background_processing") == "1";
#else
        return false;
#endif
    }
    void update_print_volume_state();
    void schedule_background_process();
    // Update background processing thread from the current config and Model.
    enum UpdateBackgroundProcessReturnState {
        // update_background_process() reports, that the Print / SLAPrint was updated in a way,
        // that the background process was invalidated and it needs to be re-run.
        UPDATE_BACKGROUND_PROCESS_RESTART = 1,
        // update_background_process() reports, that the Print / SLAPrint was updated in a way,
        // that a scene needs to be refreshed (you should call _3DScene::reload_scene(canvas3Dwidget, false))
        UPDATE_BACKGROUND_PROCESS_REFRESH_SCENE = 2,
        // update_background_process() reports, that the Print / SLAPrint is invalid, and the error message
        // was sent to the status line.
        UPDATE_BACKGROUND_PROCESS_INVALID = 4,
        // Restart even if the background processing is disabled.
        UPDATE_BACKGROUND_PROCESS_FORCE_RESTART = 8,
        // Restart for G-code (or SLA zip) export or upload.
        UPDATE_BACKGROUND_PROCESS_FORCE_EXPORT = 16,
    };
    // returns bit mask of UpdateBackgroundProcessReturnState
    unsigned int update_background_process(bool force_validation = false, bool postpone_error_messages = false, bool switch_print = true);
    // Restart background processing thread based on a bitmask of UpdateBackgroundProcessReturnState.
    bool restart_background_process(unsigned int state);
    // returns bit mask of UpdateBackgroundProcessReturnState
    unsigned int update_restart_background_process(bool force_scene_update, bool force_preview_update);
    void show_delayed_error_message() {
        if (!this->delayed_error_message.empty()) {
            std::string msg = std::move(this->delayed_error_message);
            this->delayed_error_message.clear();
            GUI::show_error(this->q, msg);
        }
    }
    void export_gcode(fs::path output_path, bool output_path_on_removable_media);
    void reload_from_disk();
    bool replace_volume_with_stl(int object_idx, int volume_idx, const fs::path& new_path, const std::string& snapshot = "");
    void replace_with_stl();
    void reload_all_from_disk();

    //BBS: add no_slice option
    void set_current_panel(wxPanel* panel, bool no_slice = true);

    void on_combobox_select(wxCommandEvent&);
    void on_select_bed_type(wxCommandEvent&);
    void on_select_preset(wxCommandEvent&);
    void on_slicing_update(SlicingStatusEvent&);
    void on_slicing_completed(wxCommandEvent&);
    void on_process_completed(SlicingProcessCompletedEvent&);
    void on_export_began(wxCommandEvent&);
    void on_export_finished(wxCommandEvent&);
    void on_slicing_began();

    void clear_warnings();
    void add_warning(const Slic3r::PrintStateBase::Warning &warning, size_t oid);
    // Update notification manager with the current state of warnings produced by the background process (slicing).
    void actualize_slicing_warnings(const PrintBase &print);
    void actualize_object_warnings(const PrintBase& print);
    // Displays dialog window with list of warnings.
    // Returns true if user clicks OK.
    // Returns true if current_warnings vector is empty without showning the dialog
    bool warnings_dialog();

    void on_action_add(SimpleEvent&);
    void on_action_add_plate(SimpleEvent&);
    void on_action_del_plate(SimpleEvent&);
    void on_action_split_objects(SimpleEvent&);
    void on_action_split_volumes(SimpleEvent&);

    void on_object_select(SimpleEvent&);
    void on_right_click(RBtnEvent&);
    //BBS: add model repair
    void on_repair_model(wxCommandEvent &event);
    void on_filament_color_changed(wxCommandEvent &event);
    void show_install_plugin_hint(wxCommandEvent &event);
    void install_network_plugin(wxCommandEvent &event);
    void show_preview_only_hint(wxCommandEvent &event);
    //BBS: add part plate related logic
    void on_plate_right_click(RBtnPlateEvent&);
    void on_plate_selected(SimpleEvent&);
    void on_action_request_model_id(wxCommandEvent& evt);
    void on_action_download_project(wxCommandEvent& evt);
    void on_slice_button_status(bool enable);
    //BBS: GUI refactor: GLToolbar
    void on_action_open_project(SimpleEvent&);
    void on_action_slice_plate(SimpleEvent&);
    void on_action_slice_all(SimpleEvent&);
    void on_action_publish(wxCommandEvent &evt);
    void on_action_print_plate(SimpleEvent&);
    void on_action_print_all(SimpleEvent&);
    void on_action_export_gcode(SimpleEvent&);
    void on_action_export_sliced_file(SimpleEvent&);
    void on_action_select_sliced_plate(wxCommandEvent& evt);

    void on_update_geometry(Vec3dsEvent<2>&);
    void on_3dcanvas_mouse_dragging_started(SimpleEvent&);
    void on_3dcanvas_mouse_dragging_finished(SimpleEvent&);

    //void show_action_buttons(const bool is_ready_to_slice) const;
    bool show_publish_dlg(bool show = true);
    void update_publish_dialog_status(wxString &msg, int percent = -1);

    // Set the bed shape to a single closed 2D polygon(array of two element arrays),
    // triangulate the bed and store the triangles into m_bed.m_triangles,
    // fills the m_bed.m_grid_lines and sets m_bed.m_origin.
    // Sets m_bed.m_polygon to limit the object placement.
    //BBS: add bed exclude area
    void set_bed_shape(const Pointfs& shape, const Pointfs& exclude_areas, const double printable_height, const std::string& custom_texture, const std::string& custom_model, bool force_as_custom = false);
    bool can_add_timelapse_wt() const;

    bool can_delete() const;
    bool can_delete_all() const;
    bool can_add_plate() const;
    bool can_delete_plate() const;
    bool can_increase_instances() const;
    bool can_decrease_instances() const;
    bool can_split_to_objects() const;
    bool can_split_to_volumes() const;
    bool can_arrange() const;
    bool can_fix_through_netfabb() const;
    bool can_simplify() const;
    bool can_set_instance_to_object() const;
    bool can_mirror() const;
    bool can_reload_from_disk() const;
    //BBS:
    bool can_fillcolor() const;
    bool has_assemble_view() const;
    bool can_replace_with_stl() const;
    bool can_split(bool to_objects) const;
#if ENABLE_ENHANCED_PRINT_VOLUME_FIT
    bool can_scale_to_print_volume() const;
#endif // ENABLE_ENHANCED_PRINT_VOLUME_FIT

    //BBS: add plate_id for thumbnail
    void generate_thumbnail(ThumbnailData& data, unsigned int w, unsigned int h, const ThumbnailsParams& thumbnail_params, Camera::EType camera_type);
    ThumbnailsList generate_thumbnails(const ThumbnailsParams& params, Camera::EType camera_type);
    //BBS
    void generate_calibration_thumbnail(ThumbnailData& data, unsigned int w, unsigned int h, const ThumbnailsParams& thumbnail_params);
    PlateBBoxData generate_first_layer_bbox();

    void bring_instance_forward() const;

    // returns the path to project file with the given extension (none if extension == wxEmptyString)
    // extension should contain the leading dot, i.e.: ".3mf"
    wxString get_project_filename(const wxString& extension = wxEmptyString) const;
    void set_project_filename(const wxString& filename);

    //BBS store bbs project name
    wxString get_project_name();
    void set_project_name(const wxString& project_name);

    // Call after plater and Canvas#D is initialized
    void init_notification_manager();

    // Caching last value of show_action_buttons parameter for show_action_buttons(), so that a callback which does not know this state will not override it.
    mutable bool    			ready_to_slice = { false };
    // Flag indicating that the G-code export targets a removable device, therefore the show_action_buttons() needs to be called at any case when the background processing finishes.
    ExportingStatus             exporting_status { NOT_EXPORTING };
    std::string                 last_output_path;
    std::string                 last_output_dir_path;
    //BBS store machine_sn and 3mf_path for PrintJob
    PrintPrepareData            m_print_job_data;
    bool                        inside_snapshot_capture() { return m_prevent_snapshots != 0; }
    bool                        process_completed_with_error { false };

    //BBS: project
    BBLProject                  project;

    //BBS: add print project related logic
    void update_fff_scene_only_shells(bool only_shells = true);
    //BBS: add popup object table logic
    bool PopupObjectTable(int object_id, int volume_id, const wxPoint& position);

private:
    void update_fff_scene();
    void update_sla_scene();

    void undo_redo_to(std::vector<UndoRedo::Snapshot>::const_iterator it_snapshot);
    void update_after_undo_redo(const UndoRedo::Snapshot& snapshot, bool temp_snapshot_was_taken = false);

    // path to project folder stored with no extension
    boost::filesystem::path     m_project_folder;

    /* display project name */
    wxString                    m_project_name;

    Slic3r::UndoRedo::Stack 	m_undo_redo_stack_main;
    Slic3r::UndoRedo::Stack 	m_undo_redo_stack_gizmos;
    Slic3r::UndoRedo::Stack    *m_undo_redo_stack_active = &m_undo_redo_stack_main;
    int                         m_prevent_snapshots = 0;     /* Used for avoid of excess "snapshoting".
                                                              * Like for "delete selected" or "set numbers of copies"
                                                              * we should call tack_snapshot just ones
                                                              * instead of calls for each action separately
                                                              * */
    // BBS: single snapshot
    Plater::SingleSnapshot     *m_single = nullptr;
    // BBS: backup
    size_t m_saved_timestamp = 0;
    size_t m_backup_timestamp = 0;
    std::string 				m_last_fff_printer_profile_name;
    std::string 				m_last_sla_printer_profile_name;

    // vector of all warnings generated by last slicing
    std::vector<std::pair<Slic3r::PrintStateBase::Warning, size_t>> current_warnings;
    bool show_warning_dialog { false };

};

const std::regex Plater::priv::pattern_bundle(".*[.](amf|amf[.]xml|zip[.]amf|3mf)", std::regex::icase);
const std::regex Plater::priv::pattern_3mf(".*3mf", std::regex::icase);
const std::regex Plater::priv::pattern_zip_amf(".*[.]zip[.]amf", std::regex::icase);
const std::regex Plater::priv::pattern_any_amf(".*[.](amf|amf[.]xml|zip[.]amf)", std::regex::icase);
const std::regex Plater::priv::pattern_prusa(".*bbl", std::regex::icase);

Plater::priv::priv(Plater *q, MainFrame *main_frame)
    : q(q)
    , main_frame(main_frame)
    //BBS: add bed_exclude_area
    , config(Slic3r::DynamicPrintConfig::new_from_defaults_keys({
        "printable_area", "bed_exclude_area", "print_sequence",
        "extruder_clearance_radius", "extruder_clearance_height_to_lid", "extruder_clearance_height_to_rod", "skirt_loops", "skirt_distance",
        "brim_width", "brim_object_gap", "brim_type", "nozzle_diameter", "single_extruder_multi_material",
        "enable_prime_tower", "wipe_tower_x", "wipe_tower_y", "prime_tower_width", "prime_tower_brim_width", "prime_volume",
        "extruder_colour", "filament_colour", "material_colour", "printable_height", "printer_model", "printer_technology",
        // These values are necessary to construct SlicingParameters by the Canvas3D variable layer height editor.
        "layer_height", "initial_layer_print_height", "min_layer_height", "max_layer_height",
        "brim_width", "wall_loops", "wall_filament", "sparse_infill_density", "sparse_infill_filament", "top_shell_layers",
        "enable_support", "support_filament", "support_interface_filament",
        "support_top_z_distance", "raft_layers"
        }))
    , sidebar(new Sidebar(q))
    , notification_manager(std::make_unique<NotificationManager>(q))
    , m_ui_jobs(this)
    , m_job_prepare_state(Job::JobPrepareState::PREPARE_STATE_DEFAULT)
    , delayed_scene_refresh(false)
    , collapse_toolbar(GLToolbar::Normal, "Collapse")
    //BBS :partplatelist construction
    , partplate_list(this->q, &model)
{
    this->q->SetFont(Slic3r::GUI::wxGetApp().normal_font());

    //BBS: use the first partplate's print for background process
    partplate_list.update_slice_context_to_current_plate(background_process);
    /*
    background_process.set_fff_print(&fff_print);
    background_process.set_sla_print(&sla_print);
    background_process.set_gcode_result(&gcode_result);
    background_process.set_thumbnail_cb([this](const ThumbnailsParams& params) { return this->generate_thumbnails(params, Camera::EType::Ortho); });
    background_process.set_slicing_completed_event(EVT_SLICING_COMPLETED);
    background_process.set_finished_event(EVT_PROCESS_COMPLETED);
    background_process.set_export_began_event(EVT_EXPORT_BEGAN);
    // Default printer technology for default config.
    background_process.select_technology(this->printer_technology);
    // Register progress callback from the Print class to the Plater.

    auto statuscb = [this](const Slic3r::PrintBase::SlicingStatus &status) {
        wxQueueEvent(this->q, new Slic3r::SlicingStatusEvent(EVT_SLICING_UPDATE, 0, status));
    };
    fff_print.set_status_callback(statuscb);
    sla_print.set_status_callback(statuscb); */

    // BBS: to be checked. Not follow patch.
    background_process.set_thumbnail_cb([this](const ThumbnailsParams& params) { return this->generate_thumbnails(params, Camera::EType::Ortho); });
    background_process.set_slicing_completed_event(EVT_SLICING_COMPLETED);
    background_process.set_finished_event(EVT_PROCESS_COMPLETED);
    background_process.set_export_began_event(EVT_EXPORT_BEGAN);
    background_process.set_export_finished_event(EVT_EXPORT_FINISHED);
    this->q->Bind(EVT_SLICING_UPDATE, &priv::on_slicing_update, this);
    this->q->Bind(EVT_PUBLISH, &priv::on_action_publish, this);
    this->q->Bind(EVT_REPAIR_MODEL, &priv::on_repair_model, this);
    this->q->Bind(EVT_FILAMENT_COLOR_CHANGED, &priv::on_filament_color_changed, this);
    this->q->Bind(EVT_INSTALL_PLUGIN_NETWORKING, &priv::install_network_plugin, this);
    this->q->Bind(EVT_INSTALL_PLUGIN_HINT, &priv::show_install_plugin_hint, this);
    this->q->Bind(EVT_PREVIEW_ONLY_MODE_HINT, &priv::show_preview_only_hint, this);

    view3D = new View3D(q, bed, &model, config, &background_process);
    //BBS: use partplater's gcode
    preview = new Preview(q, bed, &model, config, &background_process, partplate_list.get_current_slice_result(), [this]() { schedule_background_process(); });

    assemble_view = new AssembleView(q, bed, &model, config, &background_process);

#ifdef __APPLE__
    // BBS
    // set default view_toolbar icons size equal to GLGizmosManager::Default_Icons_Size
    //view_toolbar.set_icons_size(GLGizmosManager::Default_Icons_Size);
#endif // __APPLE__

    panels.push_back(view3D);
    panels.push_back(preview);
    panels.push_back(assemble_view);

    this->background_process_timer.SetOwner(this->q, 0);
    this->q->Bind(wxEVT_TIMER, [this](wxTimerEvent &evt)
    {
        if (!this->suppressed_backround_processing_update)
            this->update_restart_background_process(false, false);
    });

    update();

    auto* hsizer = new wxBoxSizer(wxHORIZONTAL);
    auto* vsizer = new wxBoxSizer(wxVERTICAL);

    // BBS: move sidebar to left side
    hsizer->Add(sidebar, 0, wxEXPAND | wxLEFT | wxRIGHT, 0);
    auto spliter_1 = new ::StaticLine(q, true);
    spliter_1->SetBackgroundColour("#A6A9AA");
    hsizer->Add(spliter_1, 0, wxEXPAND);
    auto spliter_2 = new ::StaticLine(q, true);
    spliter_2->SetBackgroundColour("#A6A9AA");
    hsizer->Add(spliter_2, 0, wxEXPAND);

    panel_sizer = new wxBoxSizer(wxHORIZONTAL);
    panel_sizer->Add(view3D, 1, wxEXPAND | wxALL, 0);
    panel_sizer->Add(preview, 1, wxEXPAND | wxALL, 0);
    panel_sizer->Add(assemble_view, 1, wxEXPAND | wxALL, 0);
    vsizer->Add(panel_sizer, 1, wxEXPAND | wxALL, 0);
    hsizer->Add(vsizer, 1, wxEXPAND | wxALL, 0);

    q->SetSizer(hsizer);

    menus.init(q);

    // Events:

    if (wxGetApp().is_editor()) {
        // Preset change event
        sidebar->Bind(wxEVT_COMBOBOX, &priv::on_combobox_select, this);
        sidebar->Bind(EVT_OBJ_LIST_OBJECT_SELECT, [this](wxEvent&) { priv::selection_changed(); });
        // BBS: should bind BACKGROUND_PROCESS event to plater
        q->Bind(EVT_SCHEDULE_BACKGROUND_PROCESS, [this](SimpleEvent&) { this->schedule_background_process(); });
        // jump to found option from SearchDialog
        q->Bind(wxCUSTOMEVT_JUMP_TO_OPTION, [this](wxCommandEvent& evt) { sidebar->jump_to_option(evt.GetInt()); });
    }

    wxGLCanvas* view3D_canvas = view3D->get_wxglcanvas();
    //BBS: GUI refactor
    wxGLCanvas* preview_canvas = preview->get_wxglcanvas();

    if (wxGetApp().is_editor()) {
        // 3DScene events:
        view3D_canvas->Bind(EVT_GLCANVAS_SCHEDULE_BACKGROUND_PROCESS, [this](SimpleEvent&) { this->schedule_background_process(); });
        view3D_canvas->Bind(EVT_GLCANVAS_OBJECT_SELECT, &priv::on_object_select, this);
        view3D_canvas->Bind(EVT_GLCANVAS_RIGHT_CLICK, &priv::on_right_click, this);
        //BBS: add part plate related logic
        view3D_canvas->Bind(EVT_GLCANVAS_PLATE_RIGHT_CLICK, &priv::on_plate_right_click, this);
        view3D_canvas->Bind(EVT_GLCANVAS_REMOVE_OBJECT, [q](SimpleEvent&) { q->remove_selected(); });
        view3D_canvas->Bind(EVT_GLCANVAS_ARRANGE, [this](SimpleEvent& evt) {
            //BBS arrage from EVT set default state.
            this->q->set_prepare_state(Job::PREPARE_STATE_DEFAULT);
            this->q->arrange(); });
        view3D_canvas->Bind(EVT_GLCANVAS_ARRANGE_PARTPLATE, [this](SimpleEvent& evt) {
            //BBS arrage from EVT set default state.
            this->q->set_prepare_state(Job::PREPARE_STATE_MENU);
            this->q->arrange(); });
        view3D_canvas->Bind(EVT_GLCANVAS_ORIENT, [this](SimpleEvent& evt) {
            //BBS oriant from EVT set default state.
            this->q->set_prepare_state(Job::PREPARE_STATE_DEFAULT);
            this->q->orient(); });
        view3D_canvas->Bind(EVT_GLCANVAS_ORIENT_PARTPLATE, [this](SimpleEvent& evt) {
            //BBS oriant from EVT set default state.
            this->q->set_prepare_state(Job::PREPARE_STATE_MENU);
            this->q->orient(); });
        //BBS
        view3D_canvas->Bind(EVT_GLCANVAS_SELECT_CURR_PLATE_ALL, [this](SimpleEvent&) {this->q->select_curr_plate_all(); });

        view3D_canvas->Bind(EVT_GLCANVAS_SELECT_ALL, [this](SimpleEvent&) { this->q->select_all(); });
        view3D_canvas->Bind(EVT_GLCANVAS_QUESTION_MARK, [](SimpleEvent&) { wxGetApp().keyboard_shortcuts(); });
        view3D_canvas->Bind(EVT_GLCANVAS_INCREASE_INSTANCES, [this](Event<int>& evt)
            { if (evt.data == 1) this->q->increase_instances(); else if (this->can_decrease_instances()) this->q->decrease_instances(); });
        view3D_canvas->Bind(EVT_GLCANVAS_INSTANCE_MOVED, [this](SimpleEvent&) { update(); });
        view3D_canvas->Bind(EVT_GLCANVAS_FORCE_UPDATE, [this](SimpleEvent&) { update(); });
        view3D_canvas->Bind(EVT_GLCANVAS_INSTANCE_ROTATED, [this](SimpleEvent&) { update(); });
        view3D_canvas->Bind(EVT_GLCANVAS_INSTANCE_SCALED, [this](SimpleEvent&) { update(); });
        // BBS
        //view3D_canvas->Bind(EVT_GLCANVAS_ENABLE_ACTION_BUTTONS, [this](Event<bool>& evt) { this->sidebar->enable_buttons(evt.data); });
        view3D_canvas->Bind(EVT_GLCANVAS_ENABLE_ACTION_BUTTONS, [this](Event<bool>& evt) { on_slice_button_status(evt.data); });
        view3D_canvas->Bind(EVT_GLCANVAS_UPDATE_GEOMETRY, &priv::on_update_geometry, this);
        view3D_canvas->Bind(EVT_GLCANVAS_MOUSE_DRAGGING_STARTED, &priv::on_3dcanvas_mouse_dragging_started, this);
        view3D_canvas->Bind(EVT_GLCANVAS_MOUSE_DRAGGING_FINISHED, &priv::on_3dcanvas_mouse_dragging_finished, this);
        view3D_canvas->Bind(EVT_GLCANVAS_TAB, [this](SimpleEvent&) { select_next_view_3D(); });
        view3D_canvas->Bind(EVT_GLCANVAS_RESETGIZMOS, [this](SimpleEvent&) { reset_all_gizmos(); });
        view3D_canvas->Bind(EVT_GLCANVAS_UNDO, [this](SimpleEvent&) { this->undo(); });
        view3D_canvas->Bind(EVT_GLCANVAS_REDO, [this](SimpleEvent&) { this->redo(); });
        view3D_canvas->Bind(EVT_GLCANVAS_COLLAPSE_SIDEBAR, [this](SimpleEvent&) { this->q->collapse_sidebar(!this->q->is_sidebar_collapsed());  });
        view3D_canvas->Bind(EVT_GLCANVAS_RELOAD_FROM_DISK, [this](SimpleEvent&) { this->reload_all_from_disk(); });

        // 3DScene/Toolbar:
        view3D_canvas->Bind(EVT_GLTOOLBAR_ADD, &priv::on_action_add, this);
        view3D_canvas->Bind(EVT_GLTOOLBAR_DELETE, [q](SimpleEvent&) { q->remove_selected(); });
        view3D_canvas->Bind(EVT_GLTOOLBAR_DELETE_ALL, [this](SimpleEvent&) { delete_all_objects_from_model(); });
//        view3D_canvas->Bind(EVT_GLTOOLBAR_DELETE_ALL, [q](SimpleEvent&) { q->reset_with_confirm(); });

        view3D_canvas->Bind(EVT_GLTOOLBAR_ADD_PLATE, &priv::on_action_add_plate, this);
        view3D_canvas->Bind(EVT_GLTOOLBAR_DEL_PLATE, &priv::on_action_del_plate, this);
        view3D_canvas->Bind(EVT_GLTOOLBAR_ORIENT, [this](SimpleEvent&) {
            //BBS arrage from EVT set default state.
            this->q->set_prepare_state(Job::PREPARE_STATE_DEFAULT);
            this->q->orient(); });
        view3D_canvas->Bind(EVT_GLTOOLBAR_ARRANGE, [this](SimpleEvent&) {
            //BBS arrage from EVT set default state.
            this->q->set_prepare_state(Job::PREPARE_STATE_DEFAULT);
            this->q->arrange();
            });
        view3D_canvas->Bind(EVT_GLTOOLBAR_CUT, [q](SimpleEvent&) { q->cut_selection_to_clipboard(); });
        view3D_canvas->Bind(EVT_GLTOOLBAR_COPY, [q](SimpleEvent&) { q->copy_selection_to_clipboard(); });
        view3D_canvas->Bind(EVT_GLTOOLBAR_PASTE, [q](SimpleEvent&) { q->paste_from_clipboard(); });
        //BBS: add clone
        view3D_canvas->Bind(EVT_GLTOOLBAR_CLONE, [q](SimpleEvent&) { q->clone_selection(); });
        view3D_canvas->Bind(EVT_GLTOOLBAR_MORE, [q](SimpleEvent&) { q->increase_instances(); });
        view3D_canvas->Bind(EVT_GLTOOLBAR_FEWER, [q](SimpleEvent&) { q->decrease_instances(); });
        view3D_canvas->Bind(EVT_GLTOOLBAR_SPLIT_OBJECTS, &priv::on_action_split_objects, this);
        view3D_canvas->Bind(EVT_GLTOOLBAR_SPLIT_VOLUMES, &priv::on_action_split_volumes, this);
        //BBS: GUI refactor: GLToolbar
        view3D_canvas->Bind(EVT_GLTOOLBAR_OPEN_PROJECT, &priv::on_action_open_project, this);
        //view3D_canvas->Bind(EVT_GLTOOLBAR_SLICE_PLATE, &priv::on_action_slice_plate, this);
        //view3D_canvas->Bind(EVT_GLTOOLBAR_SLICE_ALL, &priv::on_action_slice_all, this);
        //view3D_canvas->Bind(EVT_GLTOOLBAR_PRINT_PLATE, &priv::on_action_print_plate, this);
        //view3D_canvas->Bind(EVT_GLTOOLBAR_PRINT_ALL, &priv::on_action_print_all, this);
        //view3D_canvas->Bind(EVT_GLTOOLBAR_EXPORT_GCODE, &priv::on_action_export_gcode, this);
        view3D_canvas->Bind(EVT_GLVIEWTOOLBAR_ASSEMBLE, [q](SimpleEvent&) { q->select_view_3D("Assemble"); });
        //preview also send these events
        //preview_canvas->Bind(EVT_GLTOOLBAR_SLICE_PLATE, &priv::on_action_slice_plate, this);
        //preview_canvas->Bind(EVT_GLTOOLBAR_PRINT_PLATE, &priv::on_action_print_plate, this);
        //preview_canvas->Bind(EVT_GLTOOLBAR_PRINT_ALL, &priv::on_action_print_all, this);
        //review_canvas->Bind(EVT_GLTOOLBAR_EXPORT_GCODE, &priv::on_action_export_gcode, this);
    }
    view3D_canvas->Bind(EVT_GLCANVAS_UPDATE_BED_SHAPE, [q](SimpleEvent&) { q->set_bed_shape(); });

    // Preview events:
    preview->get_wxglcanvas()->Bind(EVT_GLCANVAS_QUESTION_MARK, [](SimpleEvent&) { wxGetApp().keyboard_shortcuts(); });
    preview->get_wxglcanvas()->Bind(EVT_GLCANVAS_UPDATE_BED_SHAPE, [q](SimpleEvent&) { q->set_bed_shape(); });
    preview->get_wxglcanvas()->Bind(EVT_GLCANVAS_UPDATE, [this](SimpleEvent &) {
            preview->get_canvas3d()->set_as_dirty();
        });
    if (wxGetApp().is_editor()) {
        preview->get_wxglcanvas()->Bind(EVT_GLCANVAS_TAB, [this](SimpleEvent&) { select_next_view_3D(); });
        preview->get_wxglcanvas()->Bind(EVT_GLCANVAS_COLLAPSE_SIDEBAR, [this](SimpleEvent&) { this->q->collapse_sidebar(!this->q->is_sidebar_collapsed());  });
        preview->get_wxglcanvas()->Bind(EVT_CUSTOMEVT_TICKSCHANGED, [this](wxCommandEvent& event) {
            Type tick_event_type = (Type)event.GetInt();
            Model &model                   = wxGetApp().plater()->model();
            model.custom_gcode_per_print_z = preview->get_canvas3d()->get_gcode_viewer().get_layers_slider()->GetTicksValues();
            preview->on_tick_changed(tick_event_type);

            // BBS set to invalid state only
            if (tick_event_type == Type::ToolChange) {
                PartPlate *plate = this->q->get_partplate_list().get_curr_plate();
                if (plate) {
                    plate->update_slice_result_valid_state(false);
                }
            }

            // update slice and print button
            wxGetApp().mainframe->update_slice_print_status(MainFrame::SlicePrintEventType::eEventSliceUpdate, true, false);
        });
    }
    if (wxGetApp().is_gcode_viewer())
        preview->Bind(EVT_GLCANVAS_RELOAD_FROM_DISK, [this](SimpleEvent&) { this->q->reload_gcode_from_disk(); });

    //BBS
    wxGLCanvas* assemble_canvas = assemble_view->get_wxglcanvas();
    if (wxGetApp().is_editor()) {
        assemble_canvas->Bind(EVT_GLTOOLBAR_FILLCOLOR, [q](IntEvent& evt) { q->fill_color(evt.get_data()); });
        assemble_canvas->Bind(EVT_GLCANVAS_OBJECT_SELECT, &priv::on_object_select, this);
        assemble_canvas->Bind(EVT_GLVIEWTOOLBAR_3D, [q](SimpleEvent&) { q->select_view_3D("3D"); });
        assemble_canvas->Bind(EVT_GLCANVAS_RIGHT_CLICK, &priv::on_right_click, this);
    }

    if (wxGetApp().is_editor()) {
        q->Bind(EVT_SLICING_COMPLETED, &priv::on_slicing_completed, this);
        q->Bind(EVT_PROCESS_COMPLETED, &priv::on_process_completed, this);
        q->Bind(EVT_EXPORT_BEGAN, &priv::on_export_began, this);
        q->Bind(EVT_EXPORT_FINISHED, &priv::on_export_finished, this);
        q->Bind(EVT_GLVIEWTOOLBAR_3D, [q](SimpleEvent&) { q->select_view_3D("3D"); });
        //BBS: set on_slice to false
        q->Bind(EVT_GLVIEWTOOLBAR_PREVIEW, [q](SimpleEvent&) { q->select_view_3D("Preview", false); });
        q->Bind(EVT_GLTOOLBAR_SLICE_PLATE, &priv::on_action_slice_plate, this);
        q->Bind(EVT_GLTOOLBAR_SLICE_ALL, &priv::on_action_slice_all, this);
        q->Bind(EVT_GLTOOLBAR_PRINT_PLATE, &priv::on_action_print_plate, this);
        q->Bind(EVT_GLTOOLBAR_SELECT_SLICED_PLATE, &priv::on_action_select_sliced_plate, this);
        q->Bind(EVT_GLTOOLBAR_PRINT_ALL, &priv::on_action_print_all, this);
        q->Bind(EVT_GLTOOLBAR_EXPORT_GCODE, &priv::on_action_export_gcode, this);
        q->Bind(EVT_GLTOOLBAR_EXPORT_SLICED_FILE, &priv::on_action_export_sliced_file, this);
        q->Bind(EVT_GLCANVAS_PLATE_SELECT, &priv::on_plate_selected, this);
        q->Bind(EVT_DOWNLOAD_PROJECT, &priv::on_action_download_project, this);
        q->Bind(EVT_IMPORT_MODEL_ID, &priv::on_action_request_model_id, this);
        q->Bind(EVT_PRINT_FINISHED, [q](wxCommandEvent &evt) { q->print_job_finished(evt); });
        //q->Bind(EVT_GLVIEWTOOLBAR_ASSEMBLE, [q](SimpleEvent&) { q->select_view_3D("Assemble"); });
    }

    // Drop target:
    q->SetDropTarget(new PlaterDropTarget(q));   // if my understanding is right, wxWindow takes the owenership
    q->Layout();

    set_current_panel(wxGetApp().is_editor() ? static_cast<wxPanel*>(view3D) : static_cast<wxPanel*>(preview));

    // updates camera type from .ini file
    camera.enable_update_config_on_type_change(true);
    // BBS set config
    bool use_perspective_camera = get_config("use_perspective_camera").compare("true") == 0;
    if (use_perspective_camera) {
        camera.set_type(Camera::EType::Perspective);
    } else {
        camera.set_type(Camera::EType::Ortho);
    }

    // Load the 3DConnexion device database.
    mouse3d_controller.load_config(*wxGetApp().app_config);
    // Start the background thread to detect and connect to a HID device (Windows and Linux).
    // Connect to a 3DConnextion driver (OSX).
    mouse3d_controller.init();
#ifdef _WIN32
    // Register an USB HID (Human Interface Device) attach event. evt contains Win32 path to the USB device containing VID, PID and other info.
    // This event wakes up the Mouse3DController's background thread to enumerate HID devices, if the VID of the callback event
    // is one of the 3D Mouse vendors (3DConnexion or Logitech).
    this->q->Bind(EVT_HID_DEVICE_ATTACHED, [this](HIDDeviceAttachedEvent &evt) {
        mouse3d_controller.device_attached(evt.data);
        });
    this->q->Bind(EVT_HID_DEVICE_DETACHED, [this](HIDDeviceAttachedEvent& evt) {
        mouse3d_controller.device_detached(evt.data);
        });
#endif /* _WIN32 */
    //notification_manager = new NotificationManager(this->q);

    if (wxGetApp().is_editor()) {
        //this->q->Bind(EVT_EJECT_DRIVE_NOTIFICAION_CLICKED, [this](EjectDriveNotificationClickedEvent&) { this->q->eject_drive(); });
        this->q->Bind(EVT_EXPORT_GCODE_NOTIFICAION_CLICKED, [this](ExportGcodeNotificationClickedEvent&) { this->q->export_gcode(true); });
        this->q->Bind(EVT_PRESET_UPDATE_AVAILABLE_CLICKED, [](PresetUpdateAvailableClickedEvent&) {  wxGetApp().get_preset_updater()->on_update_notification_confirm(); });

        /* BBS do not handle removeable driver event */
        /*
        this->q->Bind(EVT_REMOVABLE_DRIVE_EJECTED, [this](RemovableDriveEjectEvent &evt) {
            if (evt.data.second) {
                // BBS
                //this->show_action_buttons(this->ready_to_slice);
                notification_manager->close_notification_of_type(NotificationType::ExportFinished);
                notification_manager->push_notification(NotificationType::CustomNotification,
                                                        NotificationManager::NotificationLevel::RegularNotificationLevel,
                                                        format(_L("Successfully unmounted. The device %s(%s) can now be safely removed from the computer."), evt.data.first.name, evt.data.first.path)
                    );
            } else {
                notification_manager->push_notification(NotificationType::CustomNotification,
                                                        NotificationManager::NotificationLevel::ErrorNotificationLevel,
                                                        format(_L("Ejecting of device %s(%s) has failed."), evt.data.first.name, evt.data.first.path)
                    );
            }
        });
        this->q->Bind(EVT_REMOVABLE_DRIVES_CHANGED, [this](RemovableDrivesChangedEvent &) {
            // BBS
            //this->show_action_buttons(this->ready_to_slice);
            // Close notification ExportingFinished but only if last export was to removable
            notification_manager->device_ejected();
        });
        */
        // Start the background thread and register this window as a target for update events.
        //wxGetApp().removable_drive_manager()->init(this->q);
//#ifdef _WIN32
        // Trigger enumeration of removable media on Win32 notification.
        //this->q->Bind(EVT_VOLUME_ATTACHED, [this](VolumeAttachedEvent &evt) { wxGetApp().removable_drive_manager()->volumes_changed(); });
        //this->q->Bind(EVT_VOLUME_DETACHED, [this](VolumeDetachedEvent &evt) { wxGetApp().removable_drive_manager()->volumes_changed(); });
//#endif /* _WIN32 */
    }

    // Initialize the Undo / Redo stack with a first snapshot.
    //this->take_snapshot("New Project", UndoRedo::SnapshotType::ProjectSeparator);
    // Reset the "dirty project" flag.
    m_undo_redo_stack_main.mark_current_as_saved();
    dirty_state.update_from_undo_redo_stack(false);
    //this->take_snapshot("New Project");
    // BBS: save project confirm
    up_to_date(true, false);
    up_to_date(true, true);
    model.set_need_backup();

    // BBS: restore project
    if (wxGetApp().is_editor()) {
        auto last_backup = wxGetApp().app_config->get_last_backup_dir();
        this->q->Bind(EVT_RESTORE_PROJECT, [this, last = last_backup](wxCommandEvent& e) {
            std::string last_backup = last;
            std::string originfile;
            if (Slic3r::has_restore_data(last_backup, originfile)) {
                auto result = MessageDialog(this->q, _L("Previous unsaved project detected, do you want to restore it?"), wxString(SLIC3R_APP_FULL_NAME) + " - " + _L("Restore"), wxYES_NO | wxYES_DEFAULT | wxCENTRE).ShowModal();
                if (result == wxID_YES) {
                    this->q->load_project(from_path(last_backup), from_path(originfile));
                    Slic3r::backup_soon();
                    return;
                }
            }
            try {
                if (originfile != "<lock>") // see bbs_3mf.cpp for lock detail
                    boost::filesystem::remove_all(last);
            }
            catch (...) {}
            int skip_confirm = e.GetInt();
            this->q->new_project(skip_confirm, true);
            });
        //wxPostEvent(this->q, wxCommandEvent{EVT_RESTORE_PROJECT});
    }

    /*this->q->Bind(EVT_LOAD_MODEL_OTHER_INSTANCE, [this](LoadFromOtherInstanceEvent& evt) {
        BOOST_LOG_TRIVIAL(trace) << "Received load from other instance event.";
        wxArrayString input_files;
        for (size_t i = 0; i < evt.data.size(); ++i) {
            input_files.push_back(from_u8(evt.data[i].string()));
        }
        wxGetApp().mainframe->Raise();
        this->q->load_files(input_files);
    });
    this->q->Bind(EVT_INSTANCE_GO_TO_FRONT, [this](InstanceGoToFrontEvent &) {
        bring_instance_forward();
    });*/
    //wxGetApp().other_instance_message_handler()->init(this->q);

    // collapse sidebar according to saved value
    //if (wxGetApp().is_editor()) {
    //    bool is_collapsed = wxGetApp().app_config->get("collapsed_sidebar") == "1";
    //    sidebar->collapse(is_collapsed);
    //}
}

Plater::priv::~priv()
{
    if (config != nullptr)
        delete config;
    // Saves the database of visited (already shown) hints into hints.ini.
    notification_manager->deactivate_loaded_hints();
}

void Plater::priv::update(unsigned int flags)
{
    // the following line, when enabled, causes flickering on NVIDIA graphics cards
//    wxWindowUpdateLocker freeze_guard(q);
#ifdef SUPPORT_AUTOCENTER
    if (get_config("autocenter") == "true")
        model.center_instances_around_point(this->bed.build_volume().bed_center());
#endif

    unsigned int update_status = 0;
    const bool force_background_processing_restart = this->printer_technology == ptSLA || (flags & (unsigned int)UpdateParams::FORCE_BACKGROUND_PROCESSING_UPDATE);
    if (force_background_processing_restart)
        // Update the SLAPrint from the current Model, so that the reload_scene()
        // pulls the correct data.
        update_status = this->update_background_process(false, flags & (unsigned int)UpdateParams::POSTPONE_VALIDATION_ERROR_MESSAGE);
    //BBS TODO reload_scene
    this->view3D->reload_scene(false, flags & (unsigned int)UpdateParams::FORCE_FULL_SCREEN_REFRESH);
    this->preview->reload_print();
    //BBS assemble view
    this->assemble_view->reload_scene(false, flags);
    if (force_background_processing_restart)
        this->restart_background_process(update_status);
    else
        this->schedule_background_process();

    // BBS
#if 0
    if (get_config("autocenter") == "true" && this->sidebar->obj_manipul()->IsShown())
        this->sidebar->obj_manipul()->UpdateAndShow(true);
#endif
}

void Plater::priv::select_view(const std::string& direction)
{
    if (current_panel == view3D) {
        BOOST_LOG_TRIVIAL(info) << "select view3D";
        view3D->select_view(direction);
        wxGetApp().update_ui_from_settings();
    }
    else if (current_panel == preview) {
        BOOST_LOG_TRIVIAL(info) << "select preview";
        preview->select_view(direction);
        wxGetApp().update_ui_from_settings();
    }
    else if (current_panel == assemble_view) {
        BOOST_LOG_TRIVIAL(info) << "select assemble view";
        assemble_view->select_view(direction);
    }
}
// BBS set print speed table and find maximum speed
void Plater::setPrintSpeedTable(GlobalSpeedMap &printSpeedMap) {
    Slic3r::DynamicPrintConfig config = wxGetApp().preset_bundle->full_config();
    printSpeedMap.maxSpeed = 0;
    if (config.has("inner_wall_speed")) {
        printSpeedMap.perimeterSpeed = config.opt_float("inner_wall_speed");
        if (printSpeedMap.perimeterSpeed > printSpeedMap.maxSpeed)
            printSpeedMap.maxSpeed = printSpeedMap.perimeterSpeed;
    }
    if (config.has("outer_wall_speed")) {
        printSpeedMap.externalPerimeterSpeed = config.opt_float("outer_wall_speed");
        printSpeedMap.maxSpeed = std::max(printSpeedMap.maxSpeed, printSpeedMap.externalPerimeterSpeed);
    }
    if (config.has("sparse_infill_speed")) {
        printSpeedMap.infillSpeed = config.opt_float("sparse_infill_speed");
        if (printSpeedMap.infillSpeed > printSpeedMap.maxSpeed)
            printSpeedMap.maxSpeed = printSpeedMap.infillSpeed;
    }
    if (config.has("internal_solid_infill_speed")) {
        printSpeedMap.solidInfillSpeed = config.opt_float("internal_solid_infill_speed");
        if (printSpeedMap.solidInfillSpeed > printSpeedMap.maxSpeed)
            printSpeedMap.maxSpeed = printSpeedMap.solidInfillSpeed;
    }
    if (config.has("top_surface_speed")) {
        printSpeedMap.topSolidInfillSpeed = config.opt_float("top_surface_speed");
        if (printSpeedMap.topSolidInfillSpeed > printSpeedMap.maxSpeed)
            printSpeedMap.maxSpeed = printSpeedMap.topSolidInfillSpeed;
    }
    if (config.has("support_speed")) {
        printSpeedMap.supportSpeed = config.opt_float("support_speed");

        if (printSpeedMap.supportSpeed > printSpeedMap.maxSpeed)
            printSpeedMap.maxSpeed = printSpeedMap.supportSpeed;
    }

    /*        "inner_wall_speed", "outer_wall_speed", "sparse_infill_speed", "internal_solid_infill_speed",
        "top_surface_speed", "support_speed", "support_object_xy_distance", "support_interface_speed",
        "bridge_speed", "gap_infill_speed", "travel_speed", "initial_layer_speed"*/
}

// find temperature of heatend and bed and matierial of an given extruder
void Plater::setExtruderParams(std::map<size_t, Slic3r::ExtruderParams>& extParas) {
    extParas.clear();
    Slic3r::DynamicPrintConfig config = wxGetApp().preset_bundle->full_config();
    // BBS
    int numExtruders = wxGetApp().preset_bundle->filament_presets.size();
    for (unsigned int i = 0; i != numExtruders; ++i) {
        std::string matName = "";
        // BBS
        int bedTemp = 0;
        double endTemp = 0.f;
        if (config.has("filament_type")) {
            matName = config.opt_string("filament_type", i);
        }
        if (config.has("nozzle_temperature")) {
            endTemp = config.opt_int("nozzle_temperature", i);
        }

        if (config.has("curr_bed_type")) {
            BedType curr_bed_type = config.opt_enum<BedType>("curr_bed_type");
            bedTemp = config.opt_int(get_bed_temp_key(curr_bed_type), i);
        }
        if (i == 0) extParas.insert({ i,{matName, bedTemp, endTemp} });
        extParas.insert({ i + 1,{matName, bedTemp, endTemp} });
    }
}

wxColour Plater::get_next_color_for_filament()
{
    static int curr_color_filamenet = 0;
    wxColour colors[7] = {
        *wxYELLOW,
        * wxRED,
        *wxBLUE,
        *wxCYAN,
        *wxLIGHT_GREY,
        *wxWHITE,
        *wxBLACK
    };
    return colors[curr_color_filamenet++ % 7];
}

void Plater::priv::apply_free_camera_correction(bool apply/* = true*/)
{
    bool use_perspective_camera = get_config("use_perspective_camera").compare("true") == 0;
    if (use_perspective_camera)
        camera.set_type(Camera::EType::Perspective);
    else
        camera.set_type(Camera::EType::Ortho);
    if (apply
#ifdef SUPPORT_FREE_CAMERA
        && wxGetApp().app_config->get("use_free_camera") != "1"
#endif
        )
        camera.recover_from_free_camera();
}

//BBS: add no slice option
void Plater::priv::select_view_3D(const std::string& name, bool no_slice)
{
    if (name == "3D") {
        BOOST_LOG_TRIVIAL(info) << "select view3D";
        if (q->only_gcode_mode() || q->using_exported_file()) {
            BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(": can not goto preview page when loading gcode/exported_3mf");
            return;
        }
        set_current_panel(view3D, no_slice);
    }
    else if (name == "Preview") {
        BOOST_LOG_TRIVIAL(info) << "select preview";
        //BBS update extruder params and speed table before slicing
        Plater::setExtruderParams(Slic3r::Model::extruderParamsMap);
        Plater::setPrintSpeedTable(Slic3r::Model::printSpeedMap);
        set_current_panel(preview, no_slice);
    }
    else if (name == "Assemble") {
        BOOST_LOG_TRIVIAL(info) << "select assemble view";
        set_current_panel(assemble_view, no_slice);
    }

    //BBS update selection
    wxGetApp().obj_list()->update_selections();
    selection_changed();

    apply_free_camera_correction(false);
}

void Plater::priv::select_next_view_3D()
{
    if (current_panel == view3D)
        set_current_panel(preview);
    else if (current_panel == preview)
        set_current_panel(assemble_view);
    else if (current_panel == assemble_view)
        set_current_panel(view3D);
}

void Plater::priv::collapse_sidebar(bool collapse)
{
    if (q->m_only_gcode && !collapse)
        return;
    sidebar->collapse(collapse);
    notification_manager->set_sidebar_collapsed(collapse);
}


void Plater::priv::reset_all_gizmos()
{
    view3D->get_canvas3d()->reset_all_gizmos();
}

// Called after the Preferences dialog is closed and the program settings are saved.
// Update the UI based on the current preferences.
void Plater::priv::update_ui_from_settings()
{
    apply_free_camera_correction();

    view3D->get_canvas3d()->update_ui_from_settings();
    preview->get_canvas3d()->update_ui_from_settings();

    sidebar->update_ui_from_settings();
}

// BBS
std::shared_ptr<BBLStatusBar> Plater::priv::statusbar()
{
    return nullptr;
}

std::string Plater::priv::get_config(const std::string &key) const
{
    return wxGetApp().app_config->get(key);
}

BoundingBoxf Plater::priv::bed_shape_bb() const
{
    BoundingBox bb = scaled_bed_shape_bb();
    return BoundingBoxf(unscale(bb.min), unscale(bb.max));
}

BoundingBox Plater::priv::scaled_bed_shape_bb() const
{
    const auto *bed_shape_opt = config->opt<ConfigOptionPoints>("printable_area");
    const auto printable_area = Slic3r::Polygon::new_scale(bed_shape_opt->values);
    return printable_area.bounding_box();
}

// BBS: backup & restore
std::vector<size_t> Plater::priv::load_files(const std::vector<fs::path>& input_files, LoadStrategy strategy, bool ask_multi)
{
    std::vector<size_t> empty_result;
    bool dlg_cont = true;

    if (input_files.empty()) { return std::vector<size_t>(); }

    // BBS
    int filaments_cnt = config->opt<ConfigOptionStrings>("filament_colour")->values.size();
    bool one_by_one = input_files.size() == 1 || printer_technology == ptSLA/* || filaments_cnt <= 1*/;
    if (! one_by_one) {
        for (const auto &path : input_files) {
            if (std::regex_match(path.string(), pattern_bundle)) {
                one_by_one = true;
                break;
            }
        }
    }

    bool load_model = strategy & LoadStrategy::LoadModel;
    bool load_config = strategy & LoadStrategy::LoadConfig;
    bool imperial_units = strategy & LoadStrategy::ImperialUnits;
    bool silence = strategy & LoadStrategy::Silence;

    BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(": load_model %1%, load_config %2%, input_files size %3%")%load_model %load_config %input_files.size();

    const auto loading = _L("Loading") + dots;
    ProgressDialog dlg(loading, "", 100, find_toplevel_parent(q), wxPD_AUTO_HIDE | wxPD_CAN_ABORT | wxPD_APP_MODAL);
    wxBusyCursor busy;

    auto *new_model = (!load_model || one_by_one) ? nullptr : new Slic3r::Model();
    std::vector<size_t> obj_idxs;

    int answer_convert_from_meters          = wxOK_DEFAULT;
    int answer_convert_from_imperial_units  = wxOK_DEFAULT;
    int tolal_model_count                   = 0;

    for (size_t i = 0; i < input_files.size(); ++i) {
#ifdef _WIN32
        auto path = input_files[i];
        // On Windows, we swap slashes to back slashes, see GH #6803 as read_from_file() does not understand slashes on Windows thus it assignes full path to names of loaded objects.
        path.make_preferred();
#else  // _WIN32
       // Don't make a copy on Posix. Slash is a path separator, back slashes are not accepted as a substitute.
        const auto &path = input_files[i];
#endif // _WIN32
        const auto filename         = path.filename();
        int        progress_percent = static_cast<int>(100.0f * static_cast<float>(i) / static_cast<float>(input_files.size()));
        const auto real_filename    = (strategy & LoadStrategy::Restore) ? input_files[++i].filename() : filename;
        const auto dlg_info         = _L("Loading file") + ": " + from_path(real_filename);
        BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(": load file %1%") % filename;
        dlg_cont = dlg.Update(progress_percent, dlg_info);
        if (!dlg_cont) return empty_result;

        dlg.Fit();

        const bool type_3mf = std::regex_match(path.string(), pattern_3mf);
        // const bool type_zip_amf = !type_3mf && std::regex_match(path.string(), pattern_zip_amf);
        const bool type_any_amf = !type_3mf && std::regex_match(path.string(), pattern_any_amf);
        // const bool type_prusa   = std::regex_match(path.string(), pattern_prusa);

        Slic3r::Model model;
        // BBS: add auxiliary files related logic
        bool load_aux = strategy & LoadStrategy::LoadAuxiliary, load_old_project = false;
        if (load_model && load_config && type_3mf) {
            load_aux = true;
            strategy = strategy | LoadStrategy::LoadAuxiliary;
        }
        if (load_config) strategy = strategy | LoadStrategy::CheckVersion;
        bool is_project_file = false;
        BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(": is_project_file %1%, type_3mf %2%") % is_project_file % type_3mf;
        try {
            if (type_3mf) {
                DynamicPrintConfig config;
                Semver             file_version;
                {
                    DynamicPrintConfig config_loaded;

                    // BBS: add part plate related logic
                    PlateDataPtrs             plate_data;
                    En3mfType                 en_3mf_file_type = En3mfType::From_BBS;
                    ConfigSubstitutionContext config_substitutions{ForwardCompatibilitySubstitutionRule::Enable};
                    std::vector<Preset *>     project_presets;
                    // BBS: backup & restore
                    model = Slic3r::Model::read_from_archive(path.string(), &config_loaded, &config_substitutions, en_3mf_file_type, strategy, &plate_data, &project_presets,
                                                             &file_version,
                                                             [this, &dlg, real_filename, progress_percent](int import_stage, int current, int total, bool &cancel) {
                                                                 bool     cont = true;
                                                                 wxString msg  = wxString::Format(_L("Loading file: %s"), from_path(real_filename));
                                                                 cont          = dlg.Update(progress_percent, msg);
                                                                 cancel        = !cont;
                                                             });

                    BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << ":" << __LINE__
                                            << boost::format(", plate_data.size %1%, project_preset.size %2%, is_bbs_3mf %3%, file_version %4% \n") % plate_data.size() %
                                                   project_presets.size() % (en_3mf_file_type == En3mfType::From_BBS) % file_version.to_string();

                    // add extruder for prusa model if the number of existing extruders is not enough
                    if (en_3mf_file_type == En3mfType::From_Prusa) {
                        std::set<int> extruderIds;
                        for (ModelObject *o : model.objects) {
                            if (o->config.option("extruder")) extruderIds.insert(o->config.extruder());
                            for (auto volume : o->volumes) {
                                if (volume->config.option("extruder")) extruderIds.insert(volume->config.extruder());
                                for (int extruder : volume->get_extruders()) { extruderIds.insert(extruder); }
                            }
                        }
                        int size = extruderIds.size() == 0 ? 0 : *(extruderIds.rbegin());

                        int filament_size = sidebar->combos_filament().size();
                        while (filament_size < 16 && filament_size < size) {
                            int         filament_count = filament_size + 1;
                            wxColour    new_col        = Plater::get_next_color_for_filament();
                            std::string new_color      = new_col.GetAsString(wxC2S_HTML_SYNTAX).ToStdString();
                            wxGetApp().preset_bundle->set_num_filaments(filament_count, new_color);
                            wxGetApp().plater()->on_filaments_change(filament_count);
                            ++filament_size;
                        }
                        wxGetApp().get_tab(Preset::TYPE_PRINT)->update();
                    }

                    // BBS: version check
                    Semver app_version = *(Semver::parse(SLIC3R_VERSION));
                    if (en_3mf_file_type == En3mfType::From_Prusa) {
                        // do not reset the model config
                        load_config = false;
                        show_info(q, _L("the 3mf is not compatible, load geometry data only!"), _L("Incompatible 3mf"));
                    }
                    else if (load_config && (file_version.maj() != app_version.maj())) {
                        // version mismatch, only load geometries
                        load_config = false;
                        if (!load_model) {
                            // only load config case, return directly
                            show_info(q, _L("The Config is not compatible and can not be loaded."), _L("Incompatible 3mf"));
                            return empty_result;
                        }
                        load_old_project = true;
                        // select view to 3D
                        q->select_view_3D("3D");
                        // select plate 0 as default
                        q->select_plate(0);
                        show_info(q, _L("the 3mf is not compatible, load geometry data only!"), _L("Incompatible 3mf"));
                        for (ModelObject *model_object : model.objects) {
                            model_object->config.reset();
                            // Is there any modifier or advanced config data?
                            for (ModelVolume *model_volume : model_object->volumes) model_volume->config.reset();
                        }
                    } else if (load_config && (file_version > app_version)) {
                        if (config_substitutions.unrecogized_keys.size() > 0) {
                            wxString text  = wxString::Format(_L("The 3mf's version %s is newer than %s's version %s, Found following keys unrecognized:\n"),
                                                             file_version.to_string(), std::string(SLIC3R_APP_FULL_NAME), app_version.to_string());
                            bool     first = true;
                            // std::string context = into_u8(text);
                            wxString context = text;
                            for (auto &key : config_substitutions.unrecogized_keys) {
                                context += "  -";
                                context += key;
                                context += ";\n";
                                first = false;
                            }
                            wxString append = _L("You'd better upgrade your software.\n");
                            context += "\n\n";
                            // context += into_u8(append);
                            context += append;
                            show_info(q, context, _L("Newer 3mf version"));
                        }
                    } else if (!load_config) {
                        for (ModelObject *model_object : model.objects) {
                            model_object->config.reset();
                            // Is there any modifier or advanced config data?
                            for (ModelVolume *model_volume : model_object->volumes) model_volume->config.reset();
                        }
                    }

                    // plate data
                    if (plate_data.size() > 0) {
                        BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << ":" << __LINE__ << boost::format(", import 3mf UPDATE_GCODE_RESULT \n");
                        wxString msg = wxString::Format(_L("Loading file: %s"), from_path(real_filename));
                        dlg_cont     = dlg.Update(progress_percent, msg);
                        if (!dlg_cont) return empty_result;

                        if (load_config) {
                            partplate_list.load_from_3mf_structure(plate_data);
                            partplate_list.update_slice_context_to_current_plate(background_process);
                            this->preview->update_gcode_result(partplate_list.get_current_slice_result());
                            release_PlateData_list(plate_data);
                            sidebar->obj_list()->reload_all_plates();
                        } else {
                            partplate_list.reload_all_objects();
                        }
                    }

                    // BBS:: project embedded presets
                    if ((project_presets.size() > 0) && load_config) {
                        // load project embedded presets
                        PresetsConfigSubstitutions preset_substitutions;
                        PresetBundle &             preset_bundle = *wxGetApp().preset_bundle;
                        preset_substitutions                     = preset_bundle.load_project_embedded_presets(project_presets, ForwardCompatibilitySubstitutionRule::Enable);
                        if (!preset_substitutions.empty()) show_substitutions_info(preset_substitutions);
                    }
                    if (project_presets.size() > 0) {
                        for (unsigned int i = 0; i < project_presets.size(); i++) { delete project_presets[i]; }
                        project_presets.clear();
                    }

                    if (load_config && !config_loaded.empty()) {
                        BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << ":" << __LINE__ << boost::format(", import 3mf IMPORT_LOAD_CONFIG \n");
                        wxString msg = wxString::Format(_L("Loading file: %s"), from_path(real_filename));
                        dlg_cont     = dlg.Update(progress_percent, msg);
                        if (!dlg_cont) return empty_result;

                        // Based on the printer technology field found in the loaded config, select the base for the config,
                        PrinterTechnology printer_technology = Preset::printer_technology(config_loaded);

                        config.apply(static_cast<const ConfigBase &>(FullPrintConfig::defaults()));
                        // and place the loaded config over the base.
                        config += std::move(config_loaded);
                    }
                    if (!config_substitutions.empty()) show_substitutions_info(config_substitutions.substitutions, filename.string());

                    this->model.custom_gcode_per_print_z = model.custom_gcode_per_print_z;
                    // BBS
                    this->model.design_info = model.design_info;
                    this->model.model_info  = model.model_info;
                }

                if (load_config) {
                    if (!config.empty()) {
                        Preset::normalize(config);
                        PresetBundle *preset_bundle = wxGetApp().preset_bundle;
                        // BBS: first validate the printer
                        // TODO: remove it after released""
                        bool validated = preset_bundle->validate_printers(filename.string(), config);
                        if (!validated) {
                            load_config      = false;
                            load_old_project = true;
                            // select view to 3D
                            q->select_view_3D("3D");
                            // select plate 0 as default
                            q->select_plate(0);
                            show_info(q, _L("the 3mf is not compatible, load geometry data only!"), _L("Incompatible 3mf"));
                            for (ModelObject *model_object : model.objects) {
                                model_object->config.reset();
                                // Is there any modifier or advanced config data?
                                for (ModelVolume *model_volume : model_object->volumes) model_volume->config.reset();
                            }
                        } else {
                            preset_bundle->load_config_model(filename.string(), std::move(config), file_version);
                            // BBS: moved this logic to presetcollection
                            //{
                            //    // After loading of the presets from project, check if they are visible.
                            //    // Set them to visible if they are not.

                            //    auto update_selected_preset_visibility = [](PresetCollection& presets, std::vector<std::string>& names) {
                            //        if (!presets.get_selected_preset().is_visible) {
                            //            assert(presets.get_selected_preset().name == presets.get_edited_preset().name);
                            //            presets.get_selected_preset().is_visible = true;
                            //            presets.get_edited_preset().is_visible = true;
                            //            names.emplace_back(presets.get_selected_preset().name);
                            //        }
                            //    };

                            //    std::vector<std::string> names;
                            //    if (printer_technology == ptFFF) {
                            //        update_selected_preset_visibility(preset_bundle->prints, names);
                            //        for (const std::string& filament : preset_bundle->filament_presets) {
                            //            Preset* preset = preset_bundle->filaments.find_preset(filament);
                            //            if (preset && !preset->is_visible) {
                            //                preset->is_visible = true;
                            //                names.emplace_back(preset->name);
                            //                if (preset->name == preset_bundle->filaments.get_edited_preset().name)
                            //                    preset_bundle->filaments.get_selected_preset().is_visible = true;
                            //            }
                            //        }
                            //    }
                            //    else {
                            //        update_selected_preset_visibility(preset_bundle->sla_prints, names);
                            //        update_selected_preset_visibility(preset_bundle->sla_materials, names);
                            //    }
                            //    update_selected_preset_visibility(preset_bundle->printers, names);

                            //    preset_bundle->update_compatible(PresetSelectCompatibleType::Never);

                            //    // show notification about temporarily installed presets
                            //    if (!names.empty()) {
                            //        std::string notif_text = into_u8(_L_PLURAL("The preset below was temporarily installed on the active instance of PrusaSlicer",
                            //                                                   "The presets below were temporarily installed on the active instance of PrusaSlicer",
                            //                                                   names.size())) + ":";
                            //        for (std::string& name : names)
                            //            notif_text += "\n - " + name;
                            //        notification_manager->push_notification(NotificationType::CustomNotification,
                            //            NotificationManager::NotificationLevel::PrintInfoNotificationLevel, notif_text);
                            //    }
                            //}

                            // BBS
                            // if (printer_technology == ptFFF)
                            //    CustomGCode::update_custom_gcode_per_print_z_from_config(model.custom_gcode_per_print_z, &preset_bundle->project_config);

                            // For exporting from the amf/3mf we shouldn't check printer_presets for the containing information about "Print Host upload"
                            // BBS: add preset combo box re-active logic
                            // currently found only needs re-active here
                            wxGetApp().load_current_presets(false, false);
                            // Update filament colors for the MM-printer profile in the full config
                            // to avoid black (default) colors for Extruders in the ObjectList,
                            // when for extruder colors are used filament colors
                            q->on_filaments_change(preset_bundle->filament_presets.size());

                            ConfigOption *bed_type_opt = preset_bundle->project_config.option("curr_bed_type");
                            if (bed_type_opt != nullptr) q->on_bed_type_change((BedType) bed_type_opt->getInt());
                            is_project_file = true;
                        }
                    }
                    if (!silence) wxGetApp().app_config->update_config_dir(path.parent_path().string());
                }
            } else {
                // BBS: add plate data related logic
                PlateDataPtrs plate_data;
                // BBS: project embedded settings
                std::vector<Preset *> project_presets;
                bool                  is_xxx;
                Semver                file_version;
                model = Slic3r::Model::read_from_file(
                    path.string(), nullptr, nullptr, strategy, &plate_data, &project_presets, &is_xxx, &file_version, nullptr,
                    [&dlg, real_filename, progress_percent](int import_stage, int current, int total, bool &cancel) {
                        bool     cont = true;
                        wxString msg  = wxString::Format("Loading file: %s", from_path(real_filename));
                        cont          = dlg.Update(progress_percent, msg);
                        cancel        = !cont;
                    },
                    [](int isUtf8StepFile) {
                        if (!isUtf8StepFile)
                            Slic3r::GUI::show_info(nullptr, _L("Name of components inside step file is not UTF8 format!") + "\n\n" + _L("The name may show garbage characters!"),
                                                   _L("Attention!"));
                    });

                if (type_any_amf && is_xxx) imperial_units = true;

                for (auto obj : model.objects)
                    if (obj->name.empty()) obj->name = fs::path(obj->input_file).filename().string();

                if (plate_data.size() > 0) {
                    partplate_list.load_from_3mf_structure(plate_data);
                    partplate_list.update_slice_context_to_current_plate(background_process);
                    this->preview->update_gcode_result(partplate_list.get_current_slice_result());
                    release_PlateData_list(plate_data);
                    sidebar->obj_list()->reload_all_plates();
                }

                // BBS:: project embedded presets
                if (project_presets.size() > 0) {
                    // load project embedded presets
                    PresetsConfigSubstitutions preset_substitutions;
                    PresetBundle &             preset_bundle = *wxGetApp().preset_bundle;
                    preset_substitutions                     = preset_bundle.load_project_embedded_presets(project_presets, ForwardCompatibilitySubstitutionRule::Enable);
                    if (!preset_substitutions.empty()) show_substitutions_info(preset_substitutions);

                    for (unsigned int i = 0; i < project_presets.size(); i++) { delete project_presets[i]; }
                    project_presets.clear();
                }
            }
        } catch (const ConfigurationError &e) {
            std::string message = GUI::format(_L("Failed loading file \"%1%\". An invalid configuration was found."), filename.string()) + "\n\n" + e.what();
            GUI::show_error(q, message);
            continue;
        } catch (const std::exception &e) {
            GUI::show_error(q, e.what());
            continue;
        }

        if (load_model) {
            // The model should now be initialized
            auto convert_from_imperial_units = [](Model &model, bool only_small_volumes) { model.convert_from_imperial_units(only_small_volumes); };

            // BBS: add load_old_project logic
            if ((!is_project_file) && (!load_old_project)) {
                // if (!is_project_file) {
                if (int deleted_objects = model.removed_objects_with_zero_volume(); deleted_objects > 0) {
                    MessageDialog(q, _L("Objects with zero volume removed"), _L("The volume of the object is zero"), wxICON_INFORMATION | wxOK).ShowModal();
                }
                if (imperial_units)
                    // Convert even if the object is big.
                    convert_from_imperial_units(model, false);
                else if (model.looks_like_saved_in_meters()) {
                    // BBS do not handle look like in meters
                    MessageDialog dlg(q,
                                      format_wxstr(_L("The object from file %s is too small, and maybe in meters or inches.\n Do you want to scale to millimeters?"),
                                                   from_path(filename)),
                                      _L("Object too small"), wxICON_QUESTION | wxYES_NO);
                    int           answer = dlg.ShowModal();
                    if (answer == wxID_YES) model.convert_from_meters(true);
                } else if (model.looks_like_imperial_units()) {
                    // BBS do not handle look like in meters
                    MessageDialog dlg(q,
                                      format_wxstr(_L("The object from file %s is too small, and maybe in meters or inches.\n Do you want to scale to millimeters?"),
                                                   from_path(filename)),
                                      _L("Object too small"), wxICON_QUESTION | wxYES_NO);
                    int           answer = dlg.ShowModal();
                    if (answer == wxID_YES) convert_from_imperial_units(model, true);
                }
                // else if (model.looks_like_imperial_units()) {
                // BBS do not handle look like in imperial
                // auto convert_model_if = [convert_from_imperial_units](Model& model, bool condition) {
                //    if (condition)
                //        //FIXME up-scale only the small parts?
                //        convert_from_imperial_units(model, true);
                //};
                // if (answer_convert_from_imperial_units == wxOK_DEFAULT) {
                //    RichMessageDialog dlg(q, format_wxstr(_L_PLURAL(
                //        "The dimensions of the object from file %s seem to be defined in inches.\n"
                //        "The internal unit of PrusaSlicer is a millimeter. Do you want to recalculate the dimensions of the object?",
                //        "The dimensions of some objects from file %s seem to be defined in inches.\n"
                //        "The internal unit of PrusaSlicer is a millimeter. Do you want to recalculate the dimensions of these objects?", model.objects.size()), from_path(filename))
                //        + "\n", _L("The object is too small"), wxICON_QUESTION | wxYES_NO);
                //    dlg.ShowCheckBox(_L("Apply to all the remaining small objects being loaded."));
                //    int answer = dlg.ShowModal();
                //    if (dlg.IsCheckBoxChecked())
                //        answer_convert_from_imperial_units = answer;
                //    else
                //        convert_model_if(model, answer == wxID_YES);
                //}
                // convert_model_if(model, answer_convert_from_imperial_units == wxID_YES);
            }

            // if (model.looks_like_multipart_object()) {
            //   MessageDialog msg_dlg(q, _L(
            //        "This file contains several objects positioned at multiple heights.\n"
            //        "Instead of considering them as multiple objects, should \n"
            //        "the file be loaded as a single object having multiple parts?") + "\n",
            //        _L("Multi-part object detected"), wxICON_WARNING | wxYES | wxNO);
            //    if (msg_dlg.ShowModal() == wxID_YES) {
            //        model.convert_multipart_object(filaments_cnt);
            //    }
            //}
        }
        // else if ((wxGetApp().get_mode() == comSimple) && (type_3mf || type_any_amf) && model_has_advanced_features(model)) {
        //    MessageDialog msg_dlg(q, _L("This file cannot be loaded in a simple mode. Do you want to switch to an advanced mode?")+"\n",
        //        _L("Detected advanced data"), wxICON_WARNING | wxYES | wxNO);
        //    if (msg_dlg.ShowModal() == wxID_YES) {
        //        Slic3r::GUI::wxGetApp().save_mode(comAdvanced);
        //        view3D->set_as_dirty();
        //    }
        //    else
        //        return obj_idxs;
        //}

        int model_idx = 0;
        for (ModelObject *model_object : model.objects) {
            if (!type_3mf && !type_any_amf) model_object->center_around_origin(false);

            // BBS
            BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << ":" << __LINE__ << boost::format("import 3mf IMPORT_LOAD_MODEL_OBJECTS \n");
            wxString msg = wxString::Format("Loading file: %s", from_path(real_filename));
            model_idx++;
            dlg_cont = dlg.Update(progress_percent, msg);
            if (!dlg_cont) return empty_result;

            model_object->ensure_on_bed(is_project_file);
        }

        tolal_model_count += model_idx;


        if (one_by_one) {
            // BBS: add load_old_project logic
            if (type_3mf && !is_project_file && !load_old_project)
                // if (type_3mf && !is_project_file)
                model.center_instances_around_point(this->bed.build_volume().bed_center());
            // BBS: add auxiliary files logic
            // BBS: backup & restore
            if (load_aux) {
                q->model().load_from(model);
                load_auxiliary_files();
            }
            // BBS: don't allow negative_z when load model objects
            // auto loaded_idxs = load_model_objects(model.objects, is_project_file);
            auto loaded_idxs = load_model_objects(model.objects);
            obj_idxs.insert(obj_idxs.end(), loaded_idxs.begin(), loaded_idxs.end());

            BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << ":" << __LINE__ << boost::format("import 3mf IMPORT_LOAD_MODEL_OBJECTS \n");
            wxString msg = wxString::Format(_L("Loading file: %s"), from_path(real_filename));
            dlg_cont     = dlg.Update(progress_percent, msg);
            if (!dlg_cont) return empty_result;
        } else {
            // This must be an .stl or .obj file, which may contain a maximum of one volume.
            for (const ModelObject *model_object : model.objects) {
                new_model->add_object(*model_object);

                BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << ":" << __LINE__ << boost::format("import 3mf IMPORT_ADD_MODEL_OBJECTS \n");
                wxString msg = wxString::Format(_L("Loading file: %s"), from_path(real_filename));
                dlg_cont     = dlg.Update(progress_percent, msg);
                if (!dlg_cont) return empty_result;
            }
        }
    }

    if (new_model != nullptr && new_model->objects.size() > 1) {
        //BBS do not popup this dialog

        if (ask_multi) {
            MessageDialog msg_dlg(q, _L("Load these files as a single object with multiple parts?\n"), _L("Object with multiple parts was detected"),
                                  wxICON_WARNING | wxYES | wxNO);
            if (msg_dlg.ShowModal() == wxID_YES) { new_model->convert_multipart_object(filaments_cnt); }
        }

        auto loaded_idxs = load_model_objects(new_model->objects);
        obj_idxs.insert(obj_idxs.end(), loaded_idxs.begin(), loaded_idxs.end());
    }

    if (new_model) delete new_model;

    //BBS: add gcode loading logic in the end
    q->m_exported_file = false;
    if (load_model && load_config) {
        if (model.objects.empty()) {
            partplate_list.load_gcode_files();
            PartPlate * first_plate = nullptr, *cur_plate = nullptr;
            int plate_cnt = partplate_list.get_plate_count();
            int index = 0, first_plate_index = 0;
            q->m_valid_plates_count = 0;
            for (index = 0; index < plate_cnt; index ++)
            {
                cur_plate = partplate_list.get_plate(index);
                if (!first_plate && cur_plate->is_slice_result_valid()) {
                    first_plate = cur_plate;
                    first_plate_index = index;
                }
                if (cur_plate->is_slice_result_valid())
                    q->m_valid_plates_count ++;
            }
            if (first_plate&&first_plate->is_slice_result_valid()) {
                q->m_exported_file = true;
                //select plate 0 as default
                q->select_plate(first_plate_index);
                //set to 3d tab
                q->select_view_3D("Preview");
                wxGetApp().mainframe->select_tab(MainFrame::tpPreview);
            }
            else {
                //set to 3d tab
                q->select_view_3D("3D");
                //select plate 0 as default
                q->select_plate(0);
            }
        }
        else {
            //set to 3d tab
            q->select_view_3D("3D");
            //select plate 0 as default
            q->select_plate(0);
        }
    }
    else {
        //always set to 3D after loading files
        q->select_view_3D("3D");
        wxGetApp().mainframe->select_tab(MainFrame::tp3DEditor);
    }

    if (load_model) {
        if (!silence) wxGetApp().app_config->update_skein_dir(input_files[input_files.size() - 1].parent_path().make_preferred().string());
        // XXX: Plater.pm had @loaded_files, but didn't seem to fill them with the filenames...
    }

    // automatic selection of added objects
    if (!obj_idxs.empty() && view3D != nullptr) {
        // update printable state for new volumes on canvas3D
        wxGetApp().plater()->canvas3D()->update_instance_printable_state_for_objects(obj_idxs);

        Selection& selection = view3D->get_canvas3d()->get_selection();
        selection.clear();
        for (size_t idx : obj_idxs) {
            selection.add_object((unsigned int)idx, false);
        }

        // BBS: update object list selection
        this->sidebar->obj_list()->update_selections();

        if (view3D->get_canvas3d()->get_gizmos_manager().is_enabled())
            // this is required because the selected object changed and the flatten on face an sla support gizmos need to be updated accordingly
            view3D->get_canvas3d()->update_gizmos_on_off_state();
    }

    GLGizmoSimplify::add_simplify_suggestion_notification(
        obj_idxs, model.objects, *notification_manager);


    if (tolal_model_count <= 0 && !q->m_exported_file) {
        dlg.Hide();
        MessageDialog msg(wxGetApp().mainframe, _L("The file does not contain any geometry data."), _L("Warning"), wxYES | wxICON_WARNING);
        if (msg.ShowModal() == wxID_YES) {}
    }
    return obj_idxs;
}

 #define AUTOPLACEMENT_ON_LOAD

std::vector<size_t> Plater::priv::load_model_objects(const ModelObjectPtrs& model_objects, bool allow_negative_z, bool split_object)
{
    const Vec3d bed_size = Slic3r::to_3d(this->bed.build_volume().bounding_volume2d().size(), 1.0) - 2.0 * Vec3d::Ones();

#ifndef AUTOPLACEMENT_ON_LOAD
    // bool need_arrange = false;
#endif /* AUTOPLACEMENT_ON_LOAD */
    bool scaled_down = false;
    std::vector<size_t> obj_idxs;
    unsigned int obj_count = model.objects.size();

#ifdef AUTOPLACEMENT_ON_LOAD
    ModelInstancePtrs new_instances;
#endif /* AUTOPLACEMENT_ON_LOAD */
    for (ModelObject *model_object : model_objects) {
        auto *object = model.add_object(*model_object);
        object->sort_volumes(true);
        std::string object_name = object->name.empty() ? fs::path(object->input_file).filename().string() : object->name;
        obj_idxs.push_back(obj_count++);

        if (model_object->instances.empty()) {
#ifdef AUTOPLACEMENT_ON_LOAD
            object->center_around_origin();
            new_instances.emplace_back(object->add_instance());
#else /* AUTOPLACEMENT_ON_LOAD */
            // if object has no defined position(s) we need to rearrange everything after loading
            // need_arrange = true;
             // add a default instance and center object around origin
            object->center_around_origin();  // also aligns object to Z = 0
            ModelInstance* instance = object->add_instance();

            //BBS calc transformation
            Geometry::Transformation t = instance->get_transformation();
            instance->set_offset(Slic3r::to_3d(this->bed.build_volume().bed_center(), -object->origin_translation(2)));
#endif /* AUTOPLACEMENT_ON_LOAD */
        }

        //BBS: remove the auto scaled_down logic when load models
        /*
        for (size_t i = 0; i < object->instances.size(); ++i) {
            ModelInstance* instance = object->instances[i];
            const Vec3d size = object->instance_bounding_box(i).size();
            const Vec3d ratio = size.cwiseQuotient(bed_size);
            const double max_ratio = std::max(ratio(0), ratio(1));
            if (max_ratio > 10000) {
                // the size of the object is too big -> this could lead to overflow when moving to clipper coordinates,
                // so scale down the mesh
                object->scale_mesh_after_creation(1. / max_ratio);
                object->origin_translation = Vec3d::Zero();
                object->center_around_origin();
                scaled_down = true;
                break;
            }
            else if (max_ratio > 5) {
                instance->set_scaling_factor(instance->get_scaling_factor() / max_ratio);
                scaled_down = true;
            }
        }*/

        object->ensure_on_bed(allow_negative_z);
        if (!split_object) {
            //BBS initial assemble transformation
            for (ModelObject* model_object : model.objects) {
                //BBS initialize assemble transformation
                for (int i = 0; i < model_object->instances.size(); i++) {
                    if (!model_object->instances[i]->is_assemble_initialized()) {
                        model_object->instances[i]->set_assemble_transformation(model_object->instances[i]->get_transformation());
                    }
                }
            }
        }
    }

#ifdef AUTOPLACEMENT_ON_LOAD
#if 0
    // FIXME distance should be a config value /////////////////////////////////
    auto min_obj_distance = static_cast<coord_t>(6/SCALING_FACTOR);
    const auto *bed_shape_opt = config->opt<ConfigOptionPoints>("printable_area");
    assert(bed_shape_opt);
    auto& bedpoints = bed_shape_opt->values;
    Polyline bed; bed.points.reserve(bedpoints.size());
    for(auto& v : bedpoints) bed.append(Point::new_scale(v(0), v(1)));

    // BBS: get wipe tower of current plate
    int cur_plate_idx = partplate_list.get_curr_plate_index();
    std::pair<bool, GLCanvas3D::WipeTowerInfo> wti = view3D->get_canvas3d()->get_wipe_tower_info(cur_plate_idx);

    arr::find_new_position(model, new_instances, min_obj_distance, bed, wti);

    // it remains to move the wipe tower:
    view3D->get_canvas3d()->arrange_wipe_tower(wti);
#else
    // BBS: find an empty cell to put the copied object
    for (auto& instance : new_instances) {
        auto offset = instance->get_offset();
        auto start_point = this->bed.build_volume().bounding_volume2d().center();
        auto empty_cell = wxGetApp().plater()->canvas3D()->get_nearest_empty_cell({ start_point(0),start_point(1) });
        Vec3d displacement = { empty_cell.x(),empty_cell.y(),offset(2)};
        instance->set_offset(displacement);
    }
#endif

#endif /* AUTOPLACEMENT_ON_LOAD */

    //BBS: remove the auto scaled_down logic when load models
    //if (scaled_down) {
    //    GUI::show_info(q,
    //        _L("Your object appears to be too large, so it was automatically scaled down to fit your print bed."),
    //        _L("Object too large?"));
    //}

    notification_manager->close_notification_of_type(NotificationType::UpdatedItemsInfo);
    for (const size_t idx : obj_idxs) {
        wxGetApp().obj_list()->add_object_to_list(idx);
    }

    update();
    // Update InfoItems in ObjectList after update() to use of a correct value of the GLCanvas3D::is_sinking(),
    // which is updated after a view3D->reload_scene(false, flags & (unsigned int)UpdateParams::FORCE_FULL_SCREEN_REFRESH) call
    for (const size_t idx : obj_idxs)
        wxGetApp().obj_list()->update_info_items(idx);

    object_list_changed();

    this->schedule_background_process();

    return obj_idxs;
}

// BBS
void Plater::priv::load_auxiliary_files()
{
    // AuxiliaryList* aux_list = dynamic_cast<AuxiliaryList*>(sidebar->aux_list());
    // aux_list->reload(auxiliary_path);
    std::string auxiliary_path = encode_path(q->model().get_auxiliary_file_temp_path().c_str());
    wxGetApp().mainframe->m_auxiliary->Reload(auxiliary_path);
}

fs::path Plater::priv::get_export_file_path(GUI::FileType file_type)
{
    // Update printbility state of each of the ModelInstances.
    this->update_print_volume_state();

    const Selection& selection = get_selection();
    int obj_idx = selection.get_object_idx();

    fs::path output_file;
    if (file_type == FT_3MF)
        // for 3mf take the path from the project filename, if any
        output_file = into_path(get_project_filename(".3mf"));

    if (output_file.empty())
        output_file = into_path(get_project_name() + ".3mf");

    if (output_file.empty())
    {
        // first try to get the file name from the current selection
        if ((0 <= obj_idx) && (obj_idx < (int)this->model.objects.size()))
            output_file = this->model.objects[obj_idx]->get_export_filename();

        if (output_file.empty())
            // Find the file name of the first printable object.
            output_file = this->model.propose_export_file_name_and_path();

        if (output_file.empty() && !model.objects.empty())
            // Find the file name of the first object.
            output_file = this->model.objects[0]->get_export_filename();

        if (output_file.empty())
            // Use _L("Untitled") name
            output_file = into_path(_L("Untitled"));
    }
    return output_file;
}

wxString Plater::priv::get_export_file(GUI::FileType file_type)
{
    wxString wildcard;
    switch (file_type) {
        case FT_STL:
        case FT_AMF:
        case FT_3MF:
        case FT_GCODE:
        case FT_OBJ:
            wildcard = file_wildcards(file_type);
        break;
        default:
            wildcard = file_wildcards(FT_MODEL);
        break;
    }

    fs::path output_file = get_export_file_path(file_type);

    wxString dlg_title;
    switch (file_type) {
        case FT_STL:
        {
            output_file.replace_extension("stl");
            dlg_title = _L("Export STL file:");
            break;
        }
        case FT_AMF:
        {
            // XXX: Problem on OS X with double extension?
            output_file.replace_extension("zip.amf");
            dlg_title = _devL("Export AMF file:");
            break;
        }
        case FT_3MF:
        {
            output_file.replace_extension("3mf");
            dlg_title = _L("Save file as:");
            break;
        }
        case FT_OBJ:
        {
            output_file.replace_extension("obj");
            dlg_title = _devL("Export OBJ file:");
            break;
        }
        default: break;
    }

    std::string out_dir = (boost::filesystem::path(output_file).parent_path()).string();

    wxFileDialog dlg(q, dlg_title,
        is_shapes_dir(out_dir) ? from_u8(wxGetApp().app_config->get_last_dir()) : from_path(output_file.parent_path()), from_path(output_file.filename()),
        wildcard, wxFD_SAVE | wxFD_OVERWRITE_PROMPT | wxPD_APP_MODAL);

    int result = dlg.ShowModal();
    if (result == wxID_CANCEL)
        return "<cancel>";
    if (result != wxID_OK)
        return wxEmptyString;

    wxString out_path = dlg.GetPath();
    fs::path path(into_path(out_path));
    wxGetApp().app_config->update_last_output_dir(path.parent_path().string());

    return out_path;
}

const Selection& Plater::priv::get_selection() const
{
    return view3D->get_canvas3d()->get_selection();
}

Selection& Plater::priv::get_selection()
{
    return view3D->get_canvas3d()->get_selection();
}

Selection& Plater::priv::get_curr_selection()
{
    return get_current_canvas3D()->get_selection();
}

int Plater::priv::get_selected_object_idx() const
{
    int idx = get_selection().get_object_idx();
    return ((0 <= idx) && (idx < 1000)) ? idx : -1;
}

int Plater::priv::get_selected_volume_idx() const
{
    auto& selection = get_selection();
    int idx = selection.get_object_idx();
    if ((0 > idx) || (idx > 1000))
        return-1;
    const GLVolume* v = selection.get_volume(*selection.get_volume_idxs().begin());
    if (model.objects[idx]->volumes.size() > 1)
        return v->volume_idx();
    return -1;
}

void Plater::priv::selection_changed()
{
    // forces a frame render to update the view (to avoid a missed update if, for example, the context menu appears)
    view3D->render();
}

void Plater::priv::object_list_changed()
{
    const bool export_in_progress = this->background_process.is_export_scheduled(); // || ! send_gcode_file.empty());
    // XXX: is this right?
    //const bool model_fits = view3D->get_canvas3d()->check_volumes_outside_state() == ModelInstancePVS_Inside;
    const bool model_fits = view3D->get_canvas3d()->check_volumes_outside_state() != ModelInstancePVS_Partly_Outside;

    PartPlate* part_plate = partplate_list.get_curr_plate();

    // BBS
    //sidebar->enable_buttons(!model.objects.empty() && !export_in_progress && model_fits && part_plate->has_printable_instances());
    bool can_slice = !model.objects.empty() && !export_in_progress && model_fits && part_plate->has_printable_instances();
    BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(": can_slice %1%, model_fits= %2%, export_in_progress %3%, has_printable_instances %4% ")%can_slice %model_fits %export_in_progress %part_plate->has_printable_instances();
    main_frame->update_slice_print_status(MainFrame::eEventObjectUpdate, can_slice);
}

void Plater::priv::select_curr_plate_all()
{
    view3D->select_curr_plate_all();
    this->sidebar->obj_list()->update_selections();
}

void Plater::priv::remove_curr_plate_all()
{
    SingleSnapshot ss(q);
    view3D->remove_curr_plate_all();
    this->sidebar->obj_list()->update_selections();
}

void Plater::priv::select_all()
{
    view3D->select_all();
    this->sidebar->obj_list()->update_selections();
}

void Plater::priv::deselect_all()
{
    view3D->deselect_all();
}

void Plater::priv::remove(size_t obj_idx)
{
    m_ui_jobs.cancel_all();
    model.delete_object(obj_idx);
    //BBS: notify partplate the instance removed
    partplate_list.notify_instance_removed(obj_idx, -1);
    update();
    // Delete object from Sidebar list. Do it after update, so that the GLScene selection is updated with the modified model.
    sidebar->obj_list()->delete_object_from_list(obj_idx);
    object_list_changed();
}


void Plater::priv::delete_object_from_model(size_t obj_idx, bool refresh_immediately)
{
    std::string snapshot_label = "Delete Object";
    if (! model.objects[obj_idx]->name.empty())
        snapshot_label += ": " + model.objects[obj_idx]->name;
    Plater::TakeSnapshot snapshot(q, snapshot_label);
    m_ui_jobs.cancel_all();
    model.delete_object(obj_idx);
    //BBS: notify partplate the instance removed
    partplate_list.notify_instance_removed(obj_idx, -1);

    //BBS
    if (refresh_immediately) {
        update();
        object_list_changed();
    }
}

void Plater::priv::delete_all_objects_from_model()
{
    Plater::TakeSnapshot snapshot(q, "Delete All Objects");

    reset_gcode_toolpaths();
    gcode_result.reset();

    view3D->get_canvas3d()->reset_sequential_print_clearance();

    m_ui_jobs.cancel_all();

    // Stop and reset the Print content.
    background_process.reset();

    //BBS: update partplate
    partplate_list.clear();

    model.clear_objects();
    update();
    // Delete object from Sidebar list. Do it after update, so that the GLScene selection is updated with the modified model.
    sidebar->obj_list()->delete_all_objects_from_list();
    object_list_changed();

    model.custom_gcode_per_print_z.gcodes.clear();
}

void Plater::priv::reset(bool apply_presets_change)
{
    Plater::TakeSnapshot snapshot(q, "Reset Project", UndoRedo::SnapshotType::ProjectSeparator);

    clear_warnings();

    set_project_filename("");

    reset_gcode_toolpaths();
    //BBS: update gcode to current partplate's
    //GCodeProcessorResult* current_result = this->background_process.get_current_plate()->get_slice_result();
    //current_result->reset();
    //gcode_result.reset();

    view3D->get_canvas3d()->reset_sequential_print_clearance();

    m_ui_jobs.cancel_all();

    //BBS: clear the partplate list's object before object cleared
    partplate_list.reinit();
    partplate_list.update_slice_context_to_current_plate(background_process);
    preview->update_gcode_result(partplate_list.get_current_slice_result());

    // Stop and reset the Print content.
    this->background_process.reset();
    model.clear_objects();
    update();

    //BBS
    if (wxGetApp().is_editor()) {
        // Delete object from Sidebar list. Do it after update, so that the GLScene selection is updated with the modified model.
        sidebar->obj_list()->delete_all_objects_from_list();
        object_list_changed();
    }

    project.reset();

    //BBS: reset all project embedded presets
    wxGetApp().preset_bundle->reset_project_embedded_presets();
    if (apply_presets_change)
        wxGetApp().apply_keeped_preset_modifications();
    else
        wxGetApp().load_current_presets(false, false);

    model.custom_gcode_per_print_z.gcodes.clear();

    // BBS
    m_saved_timestamp = m_backup_timestamp = size_t(-1);
}

void Plater::priv::mirror(Axis axis)
{
    view3D->mirror_selection(axis);
}

void Plater::find_new_position(const ModelInstancePtrs &instances)
{
    arrangement::ArrangePolygons movable, fixed;
    arrangement::ArrangeParams arr_params = get_arrange_params(this);

    for (const ModelObject *mo : p->model.objects)
        for (ModelInstance *inst : mo->instances) {
            auto it = std::find(instances.begin(), instances.end(), inst);
            arrangement::ArrangePolygon arrpoly;
            inst->get_arrange_polygon(&arrpoly);

            if (it == instances.end())
                fixed.emplace_back(std::move(arrpoly));
            else {
                arrpoly.setter = [it](const arrangement::ArrangePolygon &p) {
                    if (p.is_arranged() && p.bed_idx == 0) {
                        Vec2d t = p.translation.cast<double>();
                        (*it)->apply_arrange_result(t, p.rotation);
                    }
                };
                movable.emplace_back(std::move(arrpoly));
            }
        }

    if (auto wt = get_wipe_tower_arrangepoly(*this))
        fixed.emplace_back(*wt);

    arrangement::arrange(movable, fixed, this->build_volume().polygon(), arr_params);

    for (auto & m : movable)
        m.apply();
}

void Plater::priv::split_object()
{
    int obj_idx = get_selected_object_idx();
    if (obj_idx == -1)
        return;

    // we clone model object because split_object() adds the split volumes
    // into the same model object, thus causing duplicates when we call load_model_objects()
    Model new_model = model;
    ModelObject* current_model_object = new_model.objects[obj_idx];

    wxBusyCursor wait;
    ModelObjectPtrs new_objects;
    current_model_object->split(&new_objects);
    if (new_objects.size() == 1)
        // #ysFIXME use notification
        Slic3r::GUI::warning_catcher(q, _L("The selected object couldn't be split."));
    else
    {
        // BBS no solid parts removed
        // If we splited object which is contain some parts/modifiers then all non-solid parts (modifiers) were deleted
        //if (current_model_object->volumes.size() > 1 && current_model_object->volumes.size() != new_objects.size())
        //    notification_manager->push_notification(NotificationType::CustomNotification,
        //        NotificationManager::NotificationLevel::PrintInfoNotificationLevel,
        //        _u8L("All non-solid parts (modifiers) were deleted"));

        Plater::TakeSnapshot snapshot(q, "Split to Objects");

        remove(obj_idx);

        // load all model objects at once, otherwise the plate would be rearranged after each one
        // causing original positions not to be kept
        //BBS: set split_object to true to avoid re-compute assemble matrix
        std::vector<size_t> idxs = load_model_objects(new_objects, false, true);

        // select newly added objects
        for (size_t idx : idxs)
        {
            get_selection().add_object((unsigned int)idx, false);
        }
    }
}

void Plater::priv::split_volume()
{
    wxGetApp().obj_list()->split();
}

void Plater::priv::scale_selection_to_fit_print_volume()
{
#if ENABLE_ENHANCED_PRINT_VOLUME_FIT
    this->view3D->get_canvas3d()->get_selection().scale_to_fit_print_volume(this->bed.build_volume());
#else
    this->view3D->get_canvas3d()->get_selection().scale_to_fit_print_volume(*config);
#endif // ENABLE_ENHANCED_PRINT_VOLUME_FIT
}

void Plater::priv::schedule_background_process()
{
    delayed_error_message.clear();
    // Trigger the timer event after 0.5s
    this->background_process_timer.Start(500, wxTIMER_ONE_SHOT);
    // Notify the Canvas3D that something has changed, so it may invalidate some of the layer editing stuff.
    this->view3D->get_canvas3d()->set_config(this->config);
}

void Plater::priv::update_print_volume_state()
{
    //BBS: use the plate's bounding box instead of the bed's
    PartPlate* pp = partplate_list.get_curr_plate();
    BuildVolume build_volume(pp->get_shape(), this->bed.build_volume().printable_height());
    this->q->model().update_print_volume_state(build_volume);
}

void Plater::priv::process_validation_warning(StringObjectException const &warning) const
{
    if (warning.string.empty())
        notification_manager->close_notification_of_type(NotificationType::ValidateWarning);
    else {
        std::string text = warning.string;
        auto po = dynamic_cast<PrintObjectBase const *>(warning.object);
        auto mo = po ? po->model_object() : dynamic_cast<ModelObject const *>(warning.object);
        auto action_fn = (mo || !warning.opt_key.empty()) ? [id = mo ? mo->id() : 0, opt = warning.opt_key](wxEvtHandler *) {
		    auto & objects = wxGetApp().model().objects;
		    auto iter = id.id ? std::find_if(objects.begin(), objects.end(), [id](auto o) { return o->id() == id; }) : objects.end();
            if (iter != objects.end())
			    wxGetApp().obj_list()->select_items({{*iter, nullptr}});
            if (!opt.empty()) {
                if (iter != objects.end())
				    wxGetApp().params_panel()->switch_to_object();
                wxGetApp().sidebar().jump_to_option(opt, Preset::TYPE_PRINT, L"");
		    }
		    return false;
	    } : std::function<bool(wxEvtHandler *)>();
        auto hypertext = (mo || !warning.opt_key.empty()) ? _u8L("Jump to") : "";
        if (mo) hypertext += std::string(" [") + mo->name + "]";
        if (!warning.opt_key.empty()) hypertext += std::string(" (") + warning.opt_key + ")";

        // BBS disable support enforcer
        //if (text == "_SUPPORTS_OFF") {
        //    text = _u8L("An object has custom support enforcers which will not be used "
        //                "because supports are disabled.")+"\n";
        //    hypertext = _u8L("Enable supports for enforcers only");

        //    action_fn = [](wxEvtHandler*) {
        //        Tab* print_tab = wxGetApp().get_tab(Preset::TYPE_PRINT);
        //        assert(print_tab);
        //        DynamicPrintConfig& config = wxGetApp().preset_bundle->prints.get_edited_preset().config;
        //        config.set_key_value("enable_support", new ConfigOptionBool(true));
        //        config.set_key_value("auto_support_type", new ConfigOptionEnum<SupportType>(stNormalAuto));
        //        print_tab->on_value_change("enable_support", config.opt_bool("enable_support"));
        //        print_tab->on_value_change("support_material_auto", config.opt_bool("support_material_auto"));
        //        return true;
        //    };
        //}

        notification_manager->push_notification(
            NotificationType::ValidateWarning,
            NotificationManager::NotificationLevel::WarningNotificationLevel,
            _u8L("WARNING:") + "\n" + text, hypertext, action_fn
        );
    }
}


// Update background processing thread from the current config and Model.
// Returns a bitmask of UpdateBackgroundProcessReturnState.
unsigned int Plater::priv::update_background_process(bool force_validation, bool postpone_error_messages, bool switch_print)
{
    // bitmap of enum UpdateBackgroundProcessReturnState
    unsigned int return_state = 0;

    // If the update_background_process() was not called by the timer, kill the timer,
    // so the update_restart_background_process() will not be called again in vain.
    background_process_timer.Stop();
    // Update the "out of print bed" state of ModelInstances.
    update_print_volume_state();
    // Apply new config to the possibly running background task.
    bool               was_running = background_process.running();
    //BBS: add the switch print logic before Print::Apply
    BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(": enter, force_validation=%1% postpone_error_messages=%2%, switch_print=%3%, was_running=%4%")%force_validation %postpone_error_messages %switch_print %was_running;
    if (switch_print)
    {
        // Update the "out of print bed" state of ModelInstances.
        this->update_print_volume_state();
        //BBS: update the current print to the current plate
        this->partplate_list.update_slice_context_to_current_plate(background_process);
        this->preview->update_gcode_result(partplate_list.get_current_slice_result());
    }
    Print::ApplyStatus invalidated = background_process.apply(q->model(), wxGetApp().preset_bundle->full_config());

    if ((invalidated == Print::APPLY_STATUS_CHANGED) || (invalidated == Print::APPLY_STATUS_INVALIDATED))
        // BBS: add only gcode mode
        q->set_only_gcode(false);

    //BBS: add slicing related logs
    BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(": background process apply result=%1%")%invalidated;
    if (background_process.empty())
        view3D->get_canvas3d()->reset_sequential_print_clearance();

    if (invalidated == Print::APPLY_STATUS_INVALIDATED) {
        //BBS: update current plater's slicer result to invalid
        this->background_process.get_current_plate()->update_slice_result_valid_state(false);

        //no need, should be done in background_process.apply
        //this->background_process.get_current_gcode_result()->reset();
        // Reset preview canvases. If the print has been invalidated, the preview canvases will be cleared.
        // Otherwise they will be just refreshed.
        if (preview != nullptr) {
            // If the preview is not visible, the following line just invalidates the preview,
            // but the G-code paths or SLA preview are calculated first once the preview is made visible.
            reset_gcode_toolpaths();
            preview->reload_print();
        }
        // In FDM mode, we need to reload the 3D scene because of the wipe tower preview box.
        // In SLA mode, we need to reload the 3D scene every time to show the support structures.
        if (printer_technology == ptSLA || (printer_technology == ptFFF && config->opt_bool("enable_prime_tower")))
            return_state |= UPDATE_BACKGROUND_PROCESS_REFRESH_SCENE;

        notification_manager->set_slicing_progress_hidden();
    }

    if ((invalidated != Print::APPLY_STATUS_UNCHANGED || force_validation) && ! background_process.empty()) {
        // The delayed error message is no more valid.
        delayed_error_message.clear();
        // The state of the Print changed, and it is non-zero. Let's validate it and give the user feedback on errors.

        //BBS: add is_warning logic
        StringObjectException warning;
        //BBS: refine seq-print logic
        Polygons polygons;
        std::vector<std::pair<Polygon, float>> height_polygons;
        StringObjectException err = background_process.validate(&warning, &polygons, &height_polygons);
        BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(": validate err=%1%, warning=%2%")%err.string%warning.string;

        if (err.string.empty()) {
            notification_manager->set_all_slicing_errors_gray(true);
            notification_manager->close_notification_of_type(NotificationType::ValidateError);
            if (invalidated != Print::APPLY_STATUS_UNCHANGED && background_processing_enabled())
                return_state |= UPDATE_BACKGROUND_PROCESS_RESTART;

            // Pass a warning from validation and either show a notification,
            // or hide the old one.
            process_validation_warning(warning);
            if (printer_technology == ptFFF) {
                view3D->get_canvas3d()->reset_sequential_print_clearance();
                view3D->get_canvas3d()->set_as_dirty();
                view3D->get_canvas3d()->request_extra_frame();
            }
        }
        else {
            // The print is not valid.
            // Show error as notification.
            notification_manager->push_validate_error_notification(err);
            return_state |= UPDATE_BACKGROUND_PROCESS_INVALID;
            if (printer_technology == ptFFF) {
                const Print* print = background_process.fff_print();
                //Polygons polygons;
                //if (print->config().print_sequence == PrintSequence::ByObject)
                //    Print::sequential_print_clearance_valid(*print, &polygons);
                view3D->get_canvas3d()->set_sequential_print_clearance_visible(true);
                view3D->get_canvas3d()->set_sequential_print_clearance_render_fill(true);
                view3D->get_canvas3d()->set_sequential_print_clearance_polygons(polygons, height_polygons);
            }
        }
    }
    else if (! this->delayed_error_message.empty()) {
        // Reusing the old state.
        return_state |= UPDATE_BACKGROUND_PROCESS_INVALID;
    }

    //actualizate warnings
    if (invalidated != Print::APPLY_STATUS_UNCHANGED || background_process.empty()) {
        if (background_process.empty())
            process_validation_warning({});
        actualize_slicing_warnings(*this->background_process.current_print());
        actualize_object_warnings(*this->background_process.current_print());
        show_warning_dialog = false;
        process_completed_with_error = false;
    }

    if (invalidated != Print::APPLY_STATUS_UNCHANGED && was_running && ! this->background_process.running() &&
        (return_state & UPDATE_BACKGROUND_PROCESS_RESTART) == 0) {
        // The background processing was killed and it will not be restarted.
        // Post the "canceled" callback message, so that it will be processed after any possible pending status bar update messages.
        SlicingProcessCompletedEvent evt(EVT_PROCESS_COMPLETED, 0,
            SlicingProcessCompletedEvent::Cancelled, nullptr);
        BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(" %1%, post an EVT_PROCESS_COMPLETED to main, status %2%")%__LINE__ %evt.status();
        wxQueueEvent(q, evt.Clone());
    }

    if ((return_state & UPDATE_BACKGROUND_PROCESS_INVALID) != 0)
    {
        // Validation of the background data failed.
        //BBS: add slice&&print status update logic
        this->main_frame->update_slice_print_status(MainFrame::eEventSliceUpdate, false);

        process_completed_with_error = true;
        BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(", Line %1%: set to process_completed_with_error, return_state=%2%")%__LINE__%return_state;
    }
    else
    {
        // Background data is valid.
        if ((return_state & UPDATE_BACKGROUND_PROCESS_RESTART) != 0 ||
            (return_state & UPDATE_BACKGROUND_PROCESS_REFRESH_SCENE) != 0 )
            notification_manager->set_slicing_progress_hidden();

        //BBS: add slice&&print status update logic
        BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(", Line %1%: background data valid, return_state=%2%")%__LINE__%return_state;
        if (background_process.finished())
        {
            ready_to_slice = false;
            this->main_frame->update_slice_print_status(MainFrame::eEventSliceUpdate, false);
        }
        else if (!background_process.empty() &&
                 !background_process.running()) /* Do not update buttons if background process is running
                                                 * This condition is important for SLA mode especially,
                                                 * when this function is called several times during calculations
                                                 * */
        {
            ready_to_slice = true;
            this->main_frame->update_slice_print_status(MainFrame::eEventSliceUpdate, true);
        }
#if 0
        //sidebar->set_btn_label(ActionButtonType::abExport, _(label_btn_export));
        //sidebar->set_btn_label(ActionButtonType::abSendGCode, _(label_btn_send));

        //const wxString slice_string = background_process.running() && wxGetApp().get_mode() == comSimple ?
        //                              _L("Slicing") + dots : _L("Slice now");
        //sidebar->set_btn_label(ActionButtonType::abReslice, slice_string);

        //if (background_process.finished())
        //    show_action_buttons(false);
        //else if (!background_process.empty() &&
        //         !background_process.running()) /* Do not update buttons if background process is running
        //                                         * This condition is important for SLA mode especially,
        //                                         * when this function is called several times during calculations
        //                                         * */
        //    show_action_buttons(true);
#endif
    }

    BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(", Line %1%: exit, return_state=%2%")%__LINE__%return_state;
    return return_state;
}

// Restart background processing thread based on a bitmask of UpdateBackgroundProcessReturnState.
bool Plater::priv::restart_background_process(unsigned int state)
{
    if (m_ui_jobs.is_any_running()) {
        // Avoid a race condition
        BOOST_LOG_TRIVIAL(warning) << __FUNCTION__ << boost::format(", Line %1%: ui jobs running, return false")%__LINE__;
        return false;
    }

    if ( ! this->background_process.empty() &&
         (state & priv::UPDATE_BACKGROUND_PROCESS_INVALID) == 0 &&
         ( ((state & UPDATE_BACKGROUND_PROCESS_FORCE_RESTART) != 0 && ! this->background_process.finished()) ||
           (state & UPDATE_BACKGROUND_PROCESS_FORCE_EXPORT) != 0 ||
           (state & UPDATE_BACKGROUND_PROCESS_RESTART) != 0 ) ) {
        BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(", Line %1%: print is valid, try to start it now")%__LINE__;
        // The print is valid and it can be started.
        if (this->background_process.start()) {
            if (!show_warning_dialog)
                on_slicing_began();
            BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(", Line %1%: start successfully")%__LINE__;
            return true;
        }
    }
    else if (this->background_process.empty()) {
        PartPlate* cur_plate = background_process.get_current_plate();
        if (cur_plate->is_slice_result_valid() && ((state & UPDATE_BACKGROUND_PROCESS_FORCE_RESTART) != 0)) {
            if (this->background_process.start()) {
                if (!show_warning_dialog)
                    on_slicing_began();
                BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(", Line %1%: start successfully")%__LINE__;
                return true;
            }
        }
    }
    BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(", Line %1%: not started")%__LINE__;
    return false;
}

void Plater::priv::export_gcode(fs::path output_path, bool output_path_on_removable_media)
{
    wxCHECK_RET(!(output_path.empty()), "export_gcode: output_path and upload_job empty");

    BOOST_LOG_TRIVIAL(info) << boost::format("export_gcode: output_path %1%")%output_path.string();
    if (model.objects.empty())
        return;

    if (background_process.is_export_scheduled()) {
        GUI::show_error(q, _L("Another export job is running."));
        return;
    }

    // bitmask of UpdateBackgroundProcessReturnState
    unsigned int state = update_background_process(true);
    if (state & priv::UPDATE_BACKGROUND_PROCESS_REFRESH_SCENE)
        view3D->reload_scene(false);

    if ((state & priv::UPDATE_BACKGROUND_PROCESS_INVALID) != 0)
        return;

    show_warning_dialog = true;
    if (! output_path.empty()) {
        background_process.schedule_export(output_path.string(), output_path_on_removable_media);
        notification_manager->push_delayed_notification(NotificationType::ExportOngoing, []() {return true; }, 1000, 0);
    } else {
        BOOST_LOG_TRIVIAL(info) << "output_path  is empty";
    }

    // If the SLA processing of just a single object's supports is running, restart slicing for the whole object.
    this->background_process.set_task(PrintBase::TaskParams());
    this->restart_background_process(priv::UPDATE_BACKGROUND_PROCESS_FORCE_EXPORT);
}

unsigned int Plater::priv::update_restart_background_process(bool force_update_scene, bool force_update_preview)
{
    bool switch_print = true;
    //BBS: judge whether can switch print or not
    if ((partplate_list.get_plate_count() > 1) && !this->background_process.can_switch_print())
    {
        //can not switch print currently
        BOOST_LOG_TRIVIAL(warning) << __FUNCTION__ << boost::format(": plate count %1%, can not switch") % partplate_list.get_plate_count();
        switch_print = false;
    }
    // bitmask of UpdateBackgroundProcessReturnState
    unsigned int state = this->update_background_process(false, false, switch_print);
    if (force_update_scene || (state & UPDATE_BACKGROUND_PROCESS_REFRESH_SCENE) != 0)
        view3D->reload_scene(false);

    if (force_update_preview)
        this->preview->reload_print();
    this->restart_background_process(state);
    return state;
}

void Plater::priv::update_fff_scene()
{
    if (this->preview != nullptr)
        this->preview->reload_print();
    // In case this was MM print, wipe tower bounding box on 3D tab might need redrawing with exact depth:
    view3D->reload_scene(true);
    //BBS: add assemble view related logic
    assemble_view->reload_scene(true);
}

//BBS: add print project related logic
void Plater::priv::update_fff_scene_only_shells(bool only_shells)
{
    if (this->preview != nullptr)
    {
        const Print* current_print = this->background_process.fff_print();
        if (current_print)
        {
            //this->preview->reset_shells();
            this->preview->load_shells(*current_print);
        }
    }

    if (!only_shells) {
        view3D->reload_scene(true);
        assemble_view->reload_scene(true);
    }
}

void Plater::priv::update_sla_scene()
{
    // Update the SLAPrint from the current Model, so that the reload_scene()
    // pulls the correct data.
    delayed_scene_refresh = false;
    this->update_restart_background_process(true, true);
}

bool Plater::priv::replace_volume_with_stl(int object_idx, int volume_idx, const fs::path& new_path, const std::string& snapshot)
{
    const std::string path = new_path.string();
    wxBusyCursor wait;
    wxBusyInfo info(_devL("Replace from:") + " " + from_u8(path), q->get_current_canvas3D()->get_wxglcanvas());

    Model new_model;
    try {
        new_model = Model::read_from_file(path, nullptr, nullptr, LoadStrategy::AddDefaultInstances);
        for (ModelObject* model_object : new_model.objects) {
            model_object->center_around_origin();
            model_object->ensure_on_bed();
        }
    }
    catch (std::exception&) {
        // error while loading
        return false;
    }

    if (new_model.objects.size() > 1 || new_model.objects.front()->volumes.size() > 1) {
        MessageDialog dlg(q, _devL("Unable to replace with more than one volume"), _devL("Error during replace"), wxOK | wxOK_DEFAULT | wxICON_WARNING);
        dlg.ShowModal();
        return false;
    }

    if (!snapshot.empty())
        q->take_snapshot(snapshot);

    ModelObject* old_model_object = model.objects[object_idx];
    ModelVolume* old_volume = old_model_object->volumes[volume_idx];

    bool sinking = old_model_object->bounding_box().min.z() < SINKING_Z_THRESHOLD;

    ModelObject* new_model_object = new_model.objects.front();
    old_model_object->add_volume(*new_model_object->volumes.front());
    ModelVolume* new_volume = old_model_object->volumes.back();
    new_volume->set_new_unique_id();
    new_volume->config.apply(old_volume->config);
    new_volume->set_type(old_volume->type());
    new_volume->set_material_id(old_volume->material_id());
    new_volume->set_transformation(old_volume->get_transformation());
    new_volume->translate(new_volume->get_transformation().get_matrix(true) * (new_volume->source.mesh_offset - old_volume->source.mesh_offset));
    assert(!old_volume->source.is_converted_from_inches || !old_volume->source.is_converted_from_meters);
    if (old_volume->source.is_converted_from_inches)
        new_volume->convert_from_imperial_units();
    else if (old_volume->source.is_converted_from_meters)
        new_volume->convert_from_meters();
    new_volume->supported_facets.assign(old_volume->supported_facets);
    new_volume->seam_facets.assign(old_volume->seam_facets);
    new_volume->mmu_segmentation_facets.assign(old_volume->mmu_segmentation_facets);
    std::swap(old_model_object->volumes[volume_idx], old_model_object->volumes.back());
    old_model_object->delete_volume(old_model_object->volumes.size() - 1);
    if (!sinking)
        old_model_object->ensure_on_bed();
    old_model_object->sort_volumes(true);

    // if object has just one volume, rename object too
    if (old_model_object->volumes.size() == 1)
        old_model_object->name = old_model_object->volumes.front()->name;

    // update new name in ObjectList
    sidebar->obj_list()->update_name_in_list(object_idx, volume_idx);

    sla::reproject_points_and_holes(old_model_object);

    return true;
}

void Plater::priv::replace_with_stl()
{
    // BBS do not support replace with STL
    //if (! q->get_view3D_canvas3D()->get_gizmos_manager().check_gizmos_closed_except(GLGizmosManager::EType::Undefined))
    //    return;

    //const Selection& selection = get_selection();

    //if (selection.is_wipe_tower() || get_selection().get_volume_idxs().size() != 1)
    //    return;

    //const GLVolume* v = selection.get_volume(*selection.get_volume_idxs().begin());
    //int object_idx = v->object_idx();
    //int volume_idx = v->volume_idx();

    //// collects paths of files to load

    //const ModelObject* object = model.objects[object_idx];
    //const ModelVolume* volume = object->volumes[volume_idx];

    //fs::path input_path;
    //if (!volume->source.input_file.empty() && fs::exists(volume->source.input_file))
    //    input_path = volume->source.input_file;

    //wxString title = _L("Select the new file");
    //title += ":";
    //wxFileDialog dialog(q, title, "", from_u8(input_path.filename().string()), file_wildcards(FT_MODEL), wxFD_OPEN | wxFD_FILE_MUST_EXIST);
    //if (dialog.ShowModal() != wxID_OK)
    //    return;

    //fs::path out_path = dialog.GetPath().ToUTF8().data();
    //if (out_path.empty()) {
    //    MessageDialog dlg(q, _L("File for the replace wasn't selected"), _L("Error during replace"), wxOK | wxOK_DEFAULT | wxICON_WARNING);
    //    dlg.ShowModal();
    //    return;
    //}

    //if (!replace_volume_with_stl(object_idx, volume_idx, out_path, "Replace with STL"))
    //    return;

    //// update 3D scene
    //update();

    //// new GLVolumes have been created at this point, so update their printable state
    //for (size_t i = 0; i < model.objects.size(); ++i) {
    //    view3D->get_canvas3d()->update_instance_printable_state_for_object(i);
    //}
}

void Plater::priv::reload_from_disk()
{
    Plater::TakeSnapshot snapshot(q, "Reload from disk");

    const Selection& selection = get_selection();

    if (selection.is_wipe_tower())
        return;

    // struct to hold selected ModelVolumes by their indices
    struct SelectedVolume
    {
        int object_idx;
        int volume_idx;

        // operators needed by std::algorithms
        bool operator < (const SelectedVolume& other) const { return object_idx < other.object_idx || (object_idx == other.object_idx && volume_idx < other.volume_idx); }
        bool operator == (const SelectedVolume& other) const { return object_idx == other.object_idx && volume_idx == other.volume_idx; }
    };
    std::vector<SelectedVolume> selected_volumes;

    // collects selected ModelVolumes
    const std::set<unsigned int>& selected_volumes_idxs = selection.get_volume_idxs();
    for (unsigned int idx : selected_volumes_idxs) {
        const GLVolume* v = selection.get_volume(idx);
        int v_idx = v->volume_idx();
        if (v_idx >= 0) {
            int o_idx = v->object_idx();
            if (0 <= o_idx && o_idx < (int)model.objects.size())
                selected_volumes.push_back({ o_idx, v_idx });
        }
    }
    std::sort(selected_volumes.begin(), selected_volumes.end());
    selected_volumes.erase(std::unique(selected_volumes.begin(), selected_volumes.end()), selected_volumes.end());

    // collects paths of files to load
    std::vector<fs::path> input_paths;
    std::vector<fs::path> missing_input_paths;
    std::vector<fs::path> replace_paths;
    for (const SelectedVolume& v : selected_volumes) {
        const ModelObject* object = model.objects[v.object_idx];
        const ModelVolume* volume = object->volumes[v.volume_idx];

        if (!volume->source.input_file.empty()) {
            if (fs::exists(volume->source.input_file))
                input_paths.push_back(volume->source.input_file);
            else {
                // searches the source in the same folder containing the object
                bool found = false;
                if (!object->input_file.empty()) {
                    fs::path object_path = fs::path(object->input_file).remove_filename();
                    if (!object_path.empty()) {
                        object_path /= fs::path(volume->source.input_file).filename();
                        const std::string source_input_file = object_path.string();
                        if (fs::exists(source_input_file)) {
                            input_paths.push_back(source_input_file);
                            found = true;
                        }
                    }
                }
                if (!found)
                    missing_input_paths.push_back(volume->source.input_file);
            }
        }
        else if (!object->input_file.empty() && volume->is_model_part() && !volume->name.empty() && !volume->source.is_from_builtin_objects)
            missing_input_paths.push_back(volume->name);
    }

    std::sort(missing_input_paths.begin(), missing_input_paths.end());
    missing_input_paths.erase(std::unique(missing_input_paths.begin(), missing_input_paths.end()), missing_input_paths.end());

    while (!missing_input_paths.empty()) {
        // ask user to select the missing file
        fs::path search = missing_input_paths.back();
        wxString title = _L("Please select a file");
#if defined(__APPLE__)
        title += " (" + from_u8(search.filename().string()) + ")";
#endif // __APPLE__
        title += ":";
        wxFileDialog dialog(q, title, "", from_u8(search.filename().string()), file_wildcards(FT_MODEL), wxFD_OPEN | wxFD_FILE_MUST_EXIST);
        if (dialog.ShowModal() != wxID_OK)
            return;

        std::string sel_filename_path = dialog.GetPath().ToUTF8().data();
        std::string sel_filename = fs::path(sel_filename_path).filename().string();
        if (boost::algorithm::iequals(search.filename().string(), sel_filename)) {
            input_paths.push_back(sel_filename_path);
            missing_input_paths.pop_back();

            fs::path sel_path = fs::path(sel_filename_path).remove_filename().string();

            std::vector<fs::path>::iterator it = missing_input_paths.begin();
            while (it != missing_input_paths.end()) {
                // try to use the path of the selected file with all remaining missing files
                fs::path repathed_filename = sel_path;
                repathed_filename /= it->filename();
                if (fs::exists(repathed_filename)) {
                    input_paths.push_back(repathed_filename.string());
                    it = missing_input_paths.erase(it);
                }
                else
                    ++it;
            }
        }
        else {
            wxString      message = _devL("Do you want to replace it") + " ?";
            MessageDialog dlg(q, message, wxMessageBoxCaptionStr, wxYES_NO | wxYES_DEFAULT | wxICON_QUESTION);
            if (dlg.ShowModal() == wxID_YES)
                replace_paths.push_back(sel_filename_path);
            missing_input_paths.pop_back();
        }
    }

    std::sort(input_paths.begin(), input_paths.end());
    input_paths.erase(std::unique(input_paths.begin(), input_paths.end()), input_paths.end());

    std::sort(replace_paths.begin(), replace_paths.end());
    replace_paths.erase(std::unique(replace_paths.begin(), replace_paths.end()), replace_paths.end());

    std::vector<wxString> fail_list;

    // load one file at a time
    for (size_t i = 0; i < input_paths.size(); ++i) {
        const auto& path = input_paths[i].string();

        wxBusyCursor wait;
        wxBusyInfo info(_devL("Reload from:") + " " + from_u8(path), q->get_current_canvas3D()->get_wxglcanvas());

        Model new_model;
        try
        {
            //BBS: add plate data related logic
            PlateDataPtrs plate_data;
            //BBS: project embedded settings
            std::vector<Preset*> project_presets;

            // BBS: backup
            new_model = Model::read_from_file(path, nullptr, nullptr, LoadStrategy::AddDefaultInstances, &plate_data, &project_presets);
            for (ModelObject* model_object : new_model.objects)
            {
                model_object->center_around_origin();
                model_object->ensure_on_bed();
            }

            if (plate_data.size() > 0)
            {
                partplate_list.load_from_3mf_structure(plate_data);
                partplate_list.update_slice_context_to_current_plate(background_process);
                this->preview->update_gcode_result(partplate_list.get_current_slice_result());
                release_PlateData_list(plate_data);
                sidebar->obj_list()->reload_all_plates();
            }
        }
        catch (std::exception&)
        {
            // error while loading
            return;
        }

        // update the selected volumes whose source is the current file
        for (const SelectedVolume& sel_v : selected_volumes) {
            ModelObject* old_model_object = model.objects[sel_v.object_idx];
            ModelVolume* old_volume = old_model_object->volumes[sel_v.volume_idx];

            bool sinking = old_model_object->bounding_box().min.z() < SINKING_Z_THRESHOLD;

            bool has_source = !old_volume->source.input_file.empty() && boost::algorithm::iequals(fs::path(old_volume->source.input_file).filename().string(), fs::path(path).filename().string());
            bool has_name = !old_volume->name.empty() && boost::algorithm::iequals(old_volume->name, fs::path(path).filename().string());
            if (has_source || has_name) {
                int new_volume_idx = -1;
                int new_object_idx = -1;
//                if (has_source) {
//                    // take idxs from source
//                    new_volume_idx = old_volume->source.volume_idx;
//                    new_object_idx = old_volume->source.object_idx;
//                }
//                else {
                    // take idxs from the 1st matching volume
                    for (size_t o = 0; o < new_model.objects.size(); ++o) {
                        ModelObject* obj = new_model.objects[o];
                        bool found = false;
                        for (size_t v = 0; v < obj->volumes.size(); ++v) {
                            if (obj->volumes[v]->name == old_volume->name) {
                                new_volume_idx = (int)v;
                                new_object_idx = (int)o;
                                found = true;
                                break;
                            }
                        }
                        if (found)
                            break;
                    }
//                }

                if (new_object_idx < 0 || int(new_model.objects.size()) <= new_object_idx) {
                    fail_list.push_back(from_u8(has_source ? old_volume->source.input_file : old_volume->name));
                    continue;
                }
                ModelObject* new_model_object = new_model.objects[new_object_idx];
                if (new_volume_idx < 0 || int(new_model_object->volumes.size()) <= new_volume_idx) {
                    fail_list.push_back(from_u8(has_source ? old_volume->source.input_file : old_volume->name));
                    continue;
                }

                old_model_object->add_volume(*new_model_object->volumes[new_volume_idx]);
                ModelVolume* new_volume = old_model_object->volumes.back();
                new_volume->set_new_unique_id();
                new_volume->config.apply(old_volume->config);
                new_volume->set_type(old_volume->type());
                new_volume->set_material_id(old_volume->material_id());
                new_volume->set_transformation(old_volume->get_transformation());
                new_volume->translate(new_volume->get_transformation().get_matrix(true) * (new_volume->source.mesh_offset - old_volume->source.mesh_offset));
                new_volume->source.object_idx = old_volume->source.object_idx;
                new_volume->source.volume_idx = old_volume->source.volume_idx;
                assert(! old_volume->source.is_converted_from_inches || ! old_volume->source.is_converted_from_meters);
                if (old_volume->source.is_converted_from_inches)
                    new_volume->convert_from_imperial_units();
                else if (old_volume->source.is_converted_from_meters)
                    new_volume->convert_from_meters();
                std::swap(old_model_object->volumes[sel_v.volume_idx], old_model_object->volumes.back());
                old_model_object->delete_volume(old_model_object->volumes.size() - 1);
                if (!sinking)
                    old_model_object->ensure_on_bed();
                old_model_object->sort_volumes(true);

                sla::reproject_points_and_holes(old_model_object);
            }
        }
    }

    for (size_t i = 0; i < replace_paths.size(); ++i) {
        const auto& path = replace_paths[i].string();
        for (const SelectedVolume& sel_v : selected_volumes) {
            ModelObject* old_model_object = model.objects[sel_v.object_idx];
            ModelVolume* old_volume = old_model_object->volumes[sel_v.volume_idx];
            bool has_source = !old_volume->source.input_file.empty() && boost::algorithm::iequals(fs::path(old_volume->source.input_file).filename().string(), fs::path(path).filename().string());
            if (!replace_volume_with_stl(sel_v.object_idx, sel_v.volume_idx, path, "")) {
                fail_list.push_back(from_u8(has_source ? old_volume->source.input_file : old_volume->name));
            }
        }
    }

    if (!fail_list.empty()) {
        wxString message = _devL("Unable to reload:") + "\n";
        for (const wxString& s : fail_list) {
            message += s + "\n";
        }
        MessageDialog dlg(q, message, _devL("Error during reload"), wxOK | wxOK_DEFAULT | wxICON_WARNING);
        dlg.ShowModal();
    }

    // update 3D scene
    update();

    // new GLVolumes have been created at this point, so update their printable state
    for (size_t i = 0; i < model.objects.size(); ++i) {
        view3D->get_canvas3d()->update_instance_printable_state_for_object(i);
    }
}

void Plater::priv::reload_all_from_disk()
{
    if (model.objects.empty())
        return;

    Plater::TakeSnapshot snapshot(q, "Reload all");
    Plater::SuppressSnapshots suppress(q);

    Selection& selection = get_selection();
    Selection::IndicesList curr_idxs = selection.get_volume_idxs();
    // reload from disk uses selection
    select_all();
    reload_from_disk();
    // restore previous selection
    selection.clear();
    for (unsigned int idx : curr_idxs) {
        selection.add(idx, false);
    }
}

//BBS: add no_slice logic
void Plater::priv::set_current_panel(wxPanel* panel, bool no_slice)
{
    if (std::find(panels.begin(), panels.end(), panel) == panels.end())
        return;

#ifdef __WXMAC__
    bool force_render = (current_panel != nullptr);
#endif // __WXMAC__

    //BBS: add slice logic when switch to preview page
    auto do_reslice = [this, no_slice]() {
            // see: Plater::priv::object_list_changed()
            // FIXME: it may be better to have a single function making this check and let it be called wherever needed
            bool export_in_progress = this->background_process.is_export_scheduled();
            bool model_fits = this->view3D->get_canvas3d()->check_volumes_outside_state() != ModelInstancePVS_Partly_Outside;
            //BBS: add partplate logic
            PartPlate * current_plate = this->partplate_list.get_curr_plate();
            bool only_has_gcode_need_preview = false;
            if (current_plate->is_slice_result_valid() && this->model.objects.empty() && !current_plate->has_printable_instances())
                only_has_gcode_need_preview = true;

            BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(": from set_current_panel, no_slice %1%, export_in_progress %2%, model_fits %3%, m_is_slicing %4%")%no_slice%export_in_progress%model_fits%m_is_slicing;

            if (!no_slice && !this->model.objects.empty() && !export_in_progress && model_fits && current_plate->has_printable_instances())
            {
                //if already running in background, not relice here
                //BBS: add more judge for slicing
                if (!this->background_process.running() && !this->m_is_slicing)
                {
                    this->m_slice_all = false;
                    this->q->reslice();
                }
                else {
                    //reset current plate to the slicing plate
                    int plate_index = this->background_process.get_current_plate()->get_index();
                    this->partplate_list.select_plate(plate_index);
                }
            }
            else if (only_has_gcode_need_preview)
            {
                this->m_slice_all = false;
                this->q->reslice();
            }
            //BBS: process empty plate, reset previous toolpath
            else
            {
                reset_gcode_toolpaths();
                //this->q->refresh_print();
                if (!preview->get_canvas3d()->is_initialized())
                {
                    preview->get_canvas3d()->render(true);
                }
            }
            //TODO: turn off this switch currently
            /*auto canvas_w = float(preview->get_canvas3d()->get_canvas_size().get_width());
            auto canvas_h = float(preview->get_canvas3d()->get_canvas_size().get_height());
            Point screen_center(canvas_w/2, canvas_h/2);
            auto center_point = preview->get_canvas3d()->_mouse_to_3d(screen_center);
            center_point(2) = 0.f;
            if (!current_plate->contains(center_point))
                this->partplate_list.select_plate_view();*/

            // keeps current gcode preview, if any
            if (this->m_slice_all) {
                BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(": slicing all, just reload shells");
                this->update_fff_scene_only_shells();
            }
            else {
                BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(": single slice, reload print");
                this->preview->reload_print(true);
            }

            preview->set_as_dirty();
        };

    if (current_panel == panel)
    {
        //BBS: add slice logic when switch to preview page
        //BBS: add only gcode mode
        if (!q->only_gcode_mode() && (current_panel == preview) && (wxGetApp().is_editor())) {
            do_reslice();
        }
        return;
    }

    wxPanel* old_panel = current_panel;
#if BBL_HAS_FIRST_PAGE
    if (!old_panel) {
        //BBS: only switch to the first panel when visible
        panel->Show();
        //dynamic_cast<View3D *>(panel)->get_canvas3d()->render();
        if (!panel->IsShownOnScreen())
            return;
    }
#endif
    current_panel = panel;
    //BBS: add the collapse logic
    if (current_panel == preview && q->only_gcode_mode()) {
        this->sidebar->collapse(true);
        preview->get_canvas3d()->enable_select_plate_toolbar(false);
    }
    else if (current_panel == preview && q->using_exported_file() && (q->m_valid_plates_count <= 1)) {
        preview->get_canvas3d()->enable_select_plate_toolbar(false);
    }
    else {
        preview->get_canvas3d()->enable_select_plate_toolbar(true);
    }

    // to reduce flickering when changing view, first set as visible the new current panel
    for (wxPanel* p : panels) {
        if (p == current_panel) {
#ifdef __WXMAC__
            // On Mac we need also to force a render to avoid flickering when changing view
            if (force_render) {
                if (p == view3D)
                    dynamic_cast<View3D*>(p)->get_canvas3d()->render();
                else if (p == preview)
                    dynamic_cast<Preview*>(p)->get_canvas3d()->render();
            }
#endif // __WXMAC__
            p->Show();
        }
    }
    // then set to invisible the other
    for (wxPanel* p : panels) {
        if (p != current_panel)
            p->Hide();
    }

    panel_sizer->Layout();

    if (wxGetApp().plater()) {
        Camera& cam = wxGetApp().plater()->get_camera();
        if (old_panel == preview || old_panel == view3D) {
            view3D->get_canvas3d()->get_camera().load_camera_view(cam);
        } else if (old_panel == assemble_view) {
            assemble_view->get_canvas3d()->get_camera().load_camera_view(cam);
        }
        if (current_panel == view3D || current_panel == preview) {
            cam.load_camera_view(view3D->get_canvas3d()->get_camera());
        }
        else if (current_panel == assemble_view) {
            cam.load_camera_view(assemble_view->get_canvas3d()->get_camera());
        }
    }

    if (current_panel == view3D) {
        if (old_panel == preview)
            preview->get_canvas3d()->unbind_event_handlers();
        else if (old_panel == assemble_view)
            assemble_view->get_canvas3d()->unbind_event_handlers();

        view3D->get_canvas3d()->bind_event_handlers();

        if (view3D->is_reload_delayed()) {
            // Delayed loading of the 3D scene.
            if (printer_technology == ptSLA) {
                // Update the SLAPrint from the current Model, so that the reload_scene()
                // pulls the correct data.
                update_restart_background_process(true, false);
            } else
                view3D->reload_scene(true);
        }

        // sets the canvas as dirty to force a render at the 1st idle event (wxWidgets IsShownOnScreen() is buggy and cannot be used reliably)
        view3D->set_as_dirty();
        // reset cached size to force a resize on next call to render() to keep imgui in synch with canvas size
        view3D->get_canvas3d()->reset_old_size();
        // BBS
        //view_toolbar.select_item("3D");
        if (notification_manager != nullptr)
            notification_manager->set_in_preview(false);
    }
    else if (current_panel == preview) {
        if (old_panel == view3D)
            view3D->get_canvas3d()->unbind_event_handlers();
        else if (old_panel == assemble_view)
            assemble_view->get_canvas3d()->unbind_event_handlers();

        preview->get_canvas3d()->bind_event_handlers();

        GLGizmosManager& gizmos = view3D->get_canvas3d()->get_gizmos_manager();
        if (gizmos.is_running()) {
            gizmos.reset_all_states();
            gizmos.update_data();
        }

        if (wxGetApp().is_editor()) {
            // see: Plater::priv::object_list_changed()
            // FIXME: it may be better to have a single function making this check and let it be called wherever needed
            /*bool export_in_progress = this->background_process.is_export_scheduled();
            bool model_fits = view3D->get_canvas3d()->check_volumes_outside_state() != ModelInstancePVS_Partly_Outside;
            //BBS: add partplate logic
            PartPlate* current_plate = partplate_list.get_curr_plate();
            if (!no_slice && !model.objects.empty() && !export_in_progress && model_fits && current_plate->has_printable_instances()) {
                preview->get_canvas3d()->init_gcode_viewer();
                // BBS
                //if already running in background, not relice here
                if (!this->background_process.running())
                {
                    m_slice_all = false;
                    this->q->reslice();
                }
            }
            // keeps current gcode preview, if any
            preview->reload_print(true);

            preview->set_as_dirty();*/
            if (wxGetApp().is_editor() && !q->only_gcode_mode())
                do_reslice();
        }

        // reset cached size to force a resize on next call to render() to keep imgui in synch with canvas size
        preview->get_canvas3d()->reset_old_size();
        // BBS
        //view_toolbar.select_item("Preview");
        if (notification_manager != nullptr)
            notification_manager->set_in_preview(true);
    }
    else if (current_panel == assemble_view) {
        if (old_panel == view3D) {
            view3D->get_canvas3d()->unbind_event_handlers();
        }
        else if (old_panel == preview)
            preview->get_canvas3d()->unbind_event_handlers();

        assemble_view->get_canvas3d()->bind_event_handlers();
        assemble_view->reload_scene(true);

        // BBS set default view and zoom
        if (first_enter_assemble) {
            wxGetApp().plater()->get_camera().requires_zoom_to_volumes = true;
            first_enter_assemble = false;
        }

        assemble_view->set_as_dirty();
        // BBS
        //view_toolbar.select_item("Assemble");
    }

    current_panel->SetFocusFromKbd();
}

// BBS
void Plater::priv::on_combobox_select(wxCommandEvent &evt)
{
    PlaterPresetComboBox* preset_combo_box = dynamic_cast<PlaterPresetComboBox*>(evt.GetEventObject());
    if (preset_combo_box) {
        this->on_select_preset(evt);
    }
    else {
        this->on_select_bed_type(evt);
    }
}

void Plater::priv::on_select_bed_type(wxCommandEvent &evt)
{
    ComboBox* combo = static_cast<ComboBox*>(evt.GetEventObject());
    int selection = combo->GetSelection();
    wxString bed_type_name = combo->GetString(selection);

    DynamicPrintConfig& config = wxGetApp().preset_bundle->project_config;
    const t_config_enum_values* keys_map = print_config_def.get("curr_bed_type")->enum_keys_map;
    if (keys_map) {
        BedType bed_type = btCount;
        for (auto item : *keys_map) {
            if (_L(item.first) == bed_type_name)
                bed_type = (BedType)item.second;
        }

        if (bed_type != btCount) {
            config.set_key_value("curr_bed_type", new ConfigOptionEnum<BedType>(bed_type));
            // update plater with new config
            q->on_config_change(wxGetApp().preset_bundle->full_config());
        }
    }
}

void Plater::priv::on_select_preset(wxCommandEvent &evt)
{
    PlaterPresetComboBox* combo = static_cast<PlaterPresetComboBox*>(evt.GetEventObject());
    Preset::Type preset_type    = combo->get_type();

    // Under OSX: in case of use of a same names written in different case (like "ENDER" and "Ender"),
    // m_presets_choice->GetSelection() will return first item, because search in PopupListCtrl is case-insensitive.
    // So, use GetSelection() from event parameter
    int selection = evt.GetSelection();

    auto idx = combo->get_filament_idx();

    //! Because of The MSW and GTK version of wxBitmapComboBox derived from wxComboBox,
    //! but the OSX version derived from wxOwnerDrawnCombo.
    //! So, to get selected string we do
    //!     combo->GetString(combo->GetSelection())
    //! instead of
    //!     combo->GetStringSelection().ToUTF8().data());

    std::string preset_name = wxGetApp().preset_bundle->get_preset_name_by_alias(preset_type,
        Preset::remove_suffix_modified(combo->GetString(selection).ToUTF8().data()));

    if (preset_type == Preset::TYPE_FILAMENT) {
        wxGetApp().preset_bundle->set_filament_preset(idx, preset_name);
    }

    bool select_preset = !combo->selection_is_changed_according_to_physical_printers();
    // TODO: ?
    if (preset_type == Preset::TYPE_FILAMENT && sidebar->is_multifilament()) {
        // Only update the plater UI for the 2nd and other filaments.
        combo->update();
    }
    else if (select_preset) {
        if (preset_type == Preset::TYPE_PRINTER) {
            PhysicalPrinterCollection& physical_printers = wxGetApp().preset_bundle->physical_printers;
            if(combo->is_selected_physical_printer())
                preset_name = physical_printers.get_selected_printer_preset_name();
            else
                physical_printers.unselect_printer();
        }
        //BBS
        //wxWindowUpdateLocker noUpdates1(sidebar->print_panel());
        wxWindowUpdateLocker noUpdates2(sidebar->filament_panel());
        wxGetApp().get_tab(preset_type)->select_preset(preset_name);
    }

    // update plater with new config
    q->on_config_change(wxGetApp().preset_bundle->full_config());
    if (preset_type == Preset::TYPE_PRINTER) {
    /* Settings list can be changed after printer preset changing, so
     * update all settings items for all item had it.
     * Furthermore, Layers editing is implemented only for FFF printers
     * and for SLA presets they should be deleted
     */
        wxGetApp().obj_list()->update_object_list_by_printer_technology();
    }

#ifdef __WXMSW__
    // From the Win 2004 preset combobox lose a focus after change the preset selection
    // and that is why the up/down arrow doesn't work properly
    // So, set the focus to the combobox explicitly
    combo->SetFocus();
#endif
    // BBS: log modify of filament selection
    Slic3r::put_other_changes();
}

void Plater::priv::on_slicing_update(SlicingStatusEvent &evt)
{
    BOOST_LOG_TRIVIAL(debug) << __FUNCTION__ << boost::format(": event_type %1%, percent %2%, text %3%") % evt.GetEventType() % evt.status.percent % evt.status.text;
    //BBS: add slice project logic
    std::string title_text = _u8L("Slicing");
    evt.status.text = title_text + evt.status.text;
    if (evt.status.percent >= 0) {
        if (m_ui_jobs.is_any_running()) {
            // Avoid a race condition
            return;
        }

        notification_manager->set_slicing_progress_percentage(evt.status.text, (float)evt.status.percent / 100.0f);

        // update slicing percent
        PartPlateList& plate_list = wxGetApp().plater()->get_partplate_list();
        //slicing parallel, only update if percent is greater than before
        if (evt.status.percent > plate_list.get_curr_plate()->get_slicing_percent())
            plate_list.get_curr_plate()->update_slicing_percent(evt.status.percent);
    }

    if (evt.status.flags & (PrintBase::SlicingStatus::RELOAD_SCENE | PrintBase::SlicingStatus::RELOAD_SLA_SUPPORT_POINTS)) {
        switch (this->printer_technology) {
        case ptFFF:
            //BBS: add slice project logic, only display shells at the beginning
            if (!m_slice_all || (m_cur_slice_plate == (partplate_list.get_plate_count() - 1)))
                //this->update_fff_scene();
                this->update_fff_scene_only_shells();
            break;
        case ptSLA:
            // If RELOAD_SLA_SUPPORT_POINTS, then the SLA gizmo is updated (reload_scene calls update_gizmos_data)
            if (view3D->is_dragging())
                delayed_scene_refresh = true;
            else
                this->update_sla_scene();
            break;
        default: break;
        }
    } else if (evt.status.flags & PrintBase::SlicingStatus::RELOAD_SLA_PREVIEW) {
        // Update the SLA preview. Only called if not RELOAD_SLA_SUPPORT_POINTS, as the block above will refresh the preview anyways.
        this->preview->reload_print();
    }

    if (evt.status.flags & (PrintBase::SlicingStatus::UPDATE_PRINT_STEP_WARNINGS | PrintBase::SlicingStatus::UPDATE_PRINT_OBJECT_STEP_WARNINGS)) {
        // Update notification center with warnings of object_id and its warning_step.
        ObjectID object_id = evt.status.warning_object_id;
        int warning_step = evt.status.warning_step;
        PrintStateBase::StateWithWarnings state;

        //BBS: add partplate related logic, use the print in background process
        if (evt.status.flags & PrintBase::SlicingStatus::UPDATE_PRINT_STEP_WARNINGS) {
            state = this->printer_technology == ptFFF ?
                this->background_process.m_fff_print->step_state_with_warnings(static_cast<PrintStep>(warning_step)) :
                this->background_process.m_sla_print->step_state_with_warnings(static_cast<SLAPrintStep>(warning_step));
        } else if (this->printer_technology == ptFFF) {
            const PrintObject *print_object = this->background_process.m_fff_print->get_object(object_id);
            if (print_object)
                state = print_object->step_state_with_warnings(static_cast<PrintObjectStep>(warning_step));
        } else {
            const SLAPrintObject *print_object = this->background_process.m_sla_print->get_object(object_id);
            if (print_object)
                state = print_object->step_state_with_warnings(static_cast<SLAPrintObjectStep>(warning_step));
        }
        // Now process state.warnings.
        for (auto const& warning : state.warnings) {
            if (warning.current) {
                notification_manager->push_slicing_warning_notification(warning.message, false, object_id, warning_step, warning.message_id);
                add_warning(warning, object_id.id);
            }
        }
    }
    BOOST_LOG_TRIVIAL(debug) << __FUNCTION__ << boost::format("exit.");
}

void Plater::priv::on_slicing_completed(wxCommandEvent & evt)
{
    BOOST_LOG_TRIVIAL(debug) << __FUNCTION__ << boost::format(": event_type %1%, string %2%") % evt.GetEventType() % evt.GetString();
    //BBS: add slice project logic
    if (m_slice_all && (m_cur_slice_plate < (partplate_list.get_plate_count() - 1))) {
        BOOST_LOG_TRIVIAL(debug) << __FUNCTION__ << boost::format("slicing all, finished plate %1%, will continue next.")%m_cur_slice_plate;
        return;
    }

    if (view3D->is_dragging()) // updating scene now would interfere with the gizmo dragging
        delayed_scene_refresh = true;
    else {
        if (this->printer_technology == ptFFF) {
            //BBS: only reload shells
            this->update_fff_scene_only_shells(false);
            //this->update_fff_scene();
        }
        else
            this->update_sla_scene();
    }
    BOOST_LOG_TRIVIAL(debug) << __FUNCTION__ << boost::format("exit.");
}

void Plater::priv::on_export_began(wxCommandEvent& evt)
{
    if (show_warning_dialog)
        warnings_dialog();
}

void Plater::priv::on_export_finished(wxCommandEvent& evt)
{
#if 0
    //BBS: also export 3mf to the same directory for debugging
    std::string gcode_path_str(evt.GetString().ToUTF8().data());
    fs::path gcode_path(gcode_path_str);

    if (q) {
        q->export_3mf(gcode_path.replace_extension(".3mf"), SaveStrategy::Silence); // BBS: silence
    }
#endif
}

void Plater::priv::on_slicing_began()
{
    clear_warnings();
    notification_manager->close_notification_of_type(NotificationType::SignDetected);
    notification_manager->close_notification_of_type(NotificationType::ExportFinished);
    notification_manager->set_slicing_progress_began();
}
void Plater::priv::add_warning(const Slic3r::PrintStateBase::Warning& warning, size_t oid)
{
    for (auto& it : current_warnings) {
        if (warning.message_id == it.first.message_id) {
            if (warning.message_id != 0 || (warning.message_id == 0 && warning.message == it.first.message))
            {
                if (warning.message_id != 0)
                    it.first.message = warning.message;
                return;
            }
        }
    }
    current_warnings.emplace_back(std::pair<Slic3r::PrintStateBase::Warning, size_t>(warning, oid));
}
void Plater::priv::actualize_slicing_warnings(const PrintBase &print)
{
    std::vector<ObjectID> ids = print.print_object_ids();
    if (ids.empty()) {
        clear_warnings();
        return;
    }
    ids.emplace_back(print.id());
    std::sort(ids.begin(), ids.end());
    notification_manager->remove_slicing_warnings_of_released_objects(ids);
    notification_manager->set_all_slicing_warnings_gray(true);
}
void Plater::priv::actualize_object_warnings(const PrintBase& print)
{
    std::vector<ObjectID> ids;
    for (const ModelObject* object : print.model().objects )
    {
        ids.push_back(object->id());
    }
    std::sort(ids.begin(), ids.end());
    notification_manager->remove_simplify_suggestion_of_released_objects(ids);
}
void Plater::priv::clear_warnings()
{
    notification_manager->close_slicing_errors_and_warnings();
    this->current_warnings.clear();
}
bool Plater::priv::warnings_dialog()
{
    if (current_warnings.empty())
        return true;
    std::string text = _u8L("There are warnings after slicing models:") + "\n";
    for (auto const& it : current_warnings) {
        size_t next_n = it.first.message.find_first_of('\n', 0);
        text += "\n";
        if (next_n != std::string::npos)
            text += it.first.message.substr(0, next_n);
        else
            text += it.first.message;
    }
    //text += "\n\nDo you still wish to export?";
    MessageDialog msg_window(this->q, from_u8(text), _L("warnings"), wxOK);
    const auto    res = msg_window.ShowModal();
    return res == wxID_OK;

}

//BBS: add project slice logic
void Plater::priv::on_process_completed(SlicingProcessCompletedEvent &evt)
{
    BOOST_LOG_TRIVIAL(debug) << __FUNCTION__ << boost::format(": enter, m_ignore_event %1%, status %2%")%m_ignore_event %evt.status();
    //BBS:ignore cancel event for some special case
    if (m_ignore_event)
    {
        m_ignore_event = false;
        BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(": ignore this event %1%") % evt.status();
        return;
    }
    //BBS: add project slice logic
    bool is_finished = !m_slice_all || (m_cur_slice_plate == (partplate_list.get_plate_count() - 1));

    // Stop the background task, wait until the thread goes into the "Idle" state.
    // At this point of time the thread should be either finished or canceled,
    // so the following call just confirms, that the produced data were consumed.
    this->background_process.stop();
    notification_manager->set_slicing_progress_export_possible();

    // Reset the "export G-code path" name, so that the automatic background processing will be enabled again.
    this->background_process.reset_export();
    // This bool stops showing export finished notification even when process_completed_with_error is false
    bool has_error = false;
    if (evt.error()) {
        std::pair<std::string, bool> message = evt.format_error_message();
        if (evt.critical_error()) {
            if (q->m_tracking_popup_menu) {
                // We don't want to pop-up a message box when tracking a pop-up menu.
                // We postpone the error message instead.
                q->m_tracking_popup_menu_error_message = message.first;
            } else {
                show_error(q, message.first, message.second);
                notification_manager->set_slicing_progress_hidden();
            }
        } else
            notification_manager->push_slicing_error_notification(message.first);
        if (evt.invalidate_plater())
        {
            // BBS
#if 0
            const wxString invalid_str = _L("Invalid data");
            for (auto btn : { ActionButtonType::abReslice, ActionButtonType::abSendGCode, ActionButtonType::abExport })
                sidebar->set_btn_label(btn, invalid_str);
#endif
            process_completed_with_error = true;
        }
        has_error = true;
        is_finished = true;
    }
    if (evt.cancelled()) {
        BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(", cancel event, status: %1%") % evt.status();
        this->notification_manager->set_slicing_progress_canceled(_utf8("Slicing Cancelled."));
        is_finished = true;
    }

    //BBS: set the current plater's slice result to valid
    this->background_process.get_current_plate()->update_slice_result_valid_state(evt.success());

    //BBS: update the action button according to the current plate's status
    bool ready_to_slice = !this->partplate_list.get_curr_plate()->is_slice_result_valid();

    // BBS
#if 0
    this->sidebar->show_sliced_info_sizer(evt.success());
#endif

    // This updates the "Slice now", "Export G-code", "Arrange" buttons status.
    // Namely, it refreshes the "Out of print bed" property of all the ModelObjects, and it enables
    // the "Slice now" and "Export G-code" buttons based on their "out of bed" status.
    //BBS: remove this update here, will be updated in update_fff_scene later
    //this->object_list_changed();

    // refresh preview
    if (view3D->is_dragging()) // updating scene now would interfere with the gizmo dragging
        delayed_scene_refresh = true;
    else {
        if (this->printer_technology == ptFFF) {
            if (is_finished)
                this->update_fff_scene();
        }
        else
            this->update_sla_scene();
    }

    //BBS: add slice&&print status update logic
    if (evt.cancelled()) {
        /*if (wxGetApp().get_mode() == comSimple)
            sidebar->set_btn_label(ActionButtonType::abReslice, "Slice now");
        show_action_buttons(true);*/
        ready_to_slice = true;
        //this->main_frame->update_slice_print_status(MainFrame::eEventSliceUpdate, true, true);

        //BBS
        if (m_is_publishing) {
            m_publish_dlg->cancel();
        }
    } else {
        if((ready_to_slice) || (wxGetApp().get_mode() == comSimple)) {
            //this means the current plate is not the slicing plate
            //show_action_buttons(ready_to_slice);
            //this->main_frame->update_slice_print_status(MainFrame::eEventSliceUpdate, ready_to_slice, true);
        }
        if (exporting_status != ExportingStatus::NOT_EXPORTING && !has_error) {
            notification_manager->stop_delayed_notifications_of_type(NotificationType::ExportOngoing);
            notification_manager->close_notification_of_type(NotificationType::ExportOngoing);
        }
        // If writing to removable drive was scheduled, show notification with eject button
        /*if (exporting_status == ExportingStatus::EXPORTING_TO_REMOVABLE && !has_error) {
            //show_action_buttons(ready_to_slice);
            this->main_frame->update_slice_print_status(MainFrame::eEventSliceUpdate, ready_to_slice, true);
            notification_manager->push_exporting_finished_notification(last_output_path, last_output_dir_path,
                // Don't offer the "Eject" button on ChromeOS, the Linux side has no control over it.
                platform_flavor() != PlatformFlavor::LinuxOnChromium);
            //wxGetApp().removable_drive_manager()->set_exporting_finished(true);
        }else */
        //if (exporting_status == ExportingStatus::EXPORTING_TO_LOCAL && !has_error)
        //    notification_manager->push_exporting_finished_notification(last_output_path, last_output_dir_path, false);
    }

    exporting_status = ExportingStatus::NOT_EXPORTING;


    // BBS stop publishing if error occur
    //if (m_is_publishing) {
    //    GCodeProcessorResult *gcode_result = background_process.get_current_gcode_result();
    //    m_publish_dlg->UpdateStatus(_L("Error occurred during slicing"), -1, false);
    //    // if toolpath is outside
    //    if (!gcode_result || gcode_result->toolpath_outside) {
    //        m_is_publishing = false;
    //    }
    //}

    if (is_finished)
    {
        BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(":finished, reload print soon");
        m_is_slicing = false;
        this->preview->reload_print(false);
        /* BBS if in publishing progress */
        if (m_is_publishing) {
            if (m_publish_dlg && !m_publish_dlg->was_cancelled()) {
                if (m_publish_dlg->IsShown()) {
                    q->publish_project();
                } else {
                    m_is_publishing = false;
                }
            }
        }
        q->SetDropTarget(new PlaterDropTarget(q));
    }
    else
    {
        BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(":slicing all, plate %1% finished, start next slice...")%m_cur_slice_plate;
        m_cur_slice_plate++;

        q->Freeze();
        q->select_plate(m_cur_slice_plate);
        partplate_list.select_plate_view();
        q->start_next_slice();
        //not the last plate
        update_fff_scene_only_shells();
        q->Thaw();
        if (m_is_publishing) {
            if (m_publish_dlg && !m_publish_dlg->was_cancelled()) {
                wxString msg = wxString::Format(_L("Slicing Plate %d"), m_cur_slice_plate + 1);
                int percent  = 70 * m_cur_slice_plate / partplate_list.get_plate_count();
                m_publish_dlg->UpdateStatus(msg, percent, false);
            }
        }
    }
    BOOST_LOG_TRIVIAL(debug) << __FUNCTION__ << boost::format(", exit.");
}

void Plater::priv::on_action_add(SimpleEvent&)
{
    if (q != nullptr) {
        //q->add_model();
        //BBS open file in toolbar add
        q->add_file();
    }
}

//BBS: add plate from toolbar
void Plater::priv::on_action_add_plate(SimpleEvent&)
{
    if (q != nullptr) {
        take_snapshot("add partplate");
        this->partplate_list.create_plate();
        update();

        // BBS set default view
        //q->get_camera().select_view("topfront");
        q->get_camera().requires_zoom_to_plate = REQUIRES_ZOOM_TO_ALL_PLATE;
    }
}

//BBS: remove plate from toolbar
void Plater::priv::on_action_del_plate(SimpleEvent&)
{
    if (q != nullptr) {
        q->delete_plate();
        //q->get_camera().select_view("topfront");
        //q->get_camera().requires_zoom_to_plate = REQUIRES_ZOOM_TO_ALL_PLATE;
    }
}

//BBS: GUI refactor: GLToolbar
void Plater::priv::on_action_open_project(SimpleEvent&)
{
    if (q != nullptr) {
        q->load_project();
    }
}

//BBS: GUI refactor: slice plate
void Plater::priv::on_action_slice_plate(SimpleEvent&)
{
    if (q != nullptr) {
        BOOST_LOG_TRIVIAL(debug) << __FUNCTION__ << ":received slice plate event\n" ;
        //BBS update extruder params and speed table before slicing
        Plater::setExtruderParams(Slic3r::Model::extruderParamsMap);
        Plater::setPrintSpeedTable(Slic3r::Model::printSpeedMap);
        m_slice_all = false;
        q->reslice();
        q->select_view_3D("Preview");
    }
}

//BBS: GUI refactor: slice all
void Plater::priv::on_action_slice_all(SimpleEvent&)
{
    if (q != nullptr) {
        BOOST_LOG_TRIVIAL(debug) << __FUNCTION__ << ":received slice project event\n" ;
        //BBS update extruder params and speed table before slicing
        Plater::setExtruderParams(Slic3r::Model::extruderParamsMap);
        Plater::setPrintSpeedTable(Slic3r::Model::printSpeedMap);
        m_slice_all = true;
        m_cur_slice_plate = 0;
        //select plate
        q->select_plate(m_cur_slice_plate);
        q->reslice();
        if (!m_is_publishing)
            q->select_view_3D("Preview");
    }
}

void Plater::priv::on_action_publish(wxCommandEvent &event)
{
    if (q != nullptr) {
        if (event.GetInt() == EVT_PUBLISHING_START) {
            // update by background slicing process
            if (process_completed_with_error) {
                wxString msg = _L("Please resolve the slicing errors and publish again.");
                this->m_publish_dlg->UpdateStatus(msg, false);
                return;
            }

            m_is_publishing = true;
            // if slicing is ready publish project, else slicing first
            if (partplate_list.is_all_slice_results_valid()) {
                q->publish_project();
            } else {
                BOOST_LOG_TRIVIAL(debug) << __FUNCTION__ << ":received slice project in background event\n";
                SimpleEvent evt = SimpleEvent(EVT_GLTOOLBAR_SLICE_ALL);
                this->on_action_slice_all(evt);
            }
        } else {
            m_is_publishing = false;
            show_publish_dlg(false);
        }
    }
}

void Plater::priv::on_action_print_plate(SimpleEvent&)
{
    if (q != nullptr) {
        BOOST_LOG_TRIVIAL(debug) << __FUNCTION__ << ":received print plate event\n" ;
    }

    //do not check login for lan printing
    ////BBS check login status
    //if (!wxGetApp().check_login()) return;


    //BBS
    if (!m_select_machine_dlg) m_select_machine_dlg = new SelectMachineDialog(q);
    m_select_machine_dlg->prepare(partplate_list.get_curr_plate_index());
    m_select_machine_dlg->ShowModal();
}

void Plater::priv::on_action_select_sliced_plate(wxCommandEvent &evt)
{
    if (q != nullptr) {
        BOOST_LOG_TRIVIAL(debug) << __FUNCTION__ << ":received select sliced plate event\n" ;
    }
    q->select_sliced_plate(evt.GetInt());
}

void Plater::priv::on_action_print_all(SimpleEvent&)
{
    if (q != nullptr) {
        BOOST_LOG_TRIVIAL(debug) << __FUNCTION__ << ":received print all event\n" ;
    }

    if (!wxGetApp().check_login()) return;

    //BBS
    if (!m_select_machine_dlg) m_select_machine_dlg = new SelectMachineDialog(q);
    m_select_machine_dlg->prepare(PLATE_ALL_IDX);
    m_select_machine_dlg->ShowModal();
}

void Plater::priv::on_action_export_gcode(SimpleEvent&)
{
    if (q != nullptr) {
        BOOST_LOG_TRIVIAL(debug) << __FUNCTION__ << ":received export gcode event\n" ;
        q->export_gcode(false);
    }
}

void Plater::priv::on_action_export_sliced_file(SimpleEvent&)
{
    if (q != nullptr) {
        BOOST_LOG_TRIVIAL(debug) << __FUNCTION__ << ":received export sliced file event\n" ;
        q->export_gcode_3mf();
    }
}

//BBS: add plate select logic
void Plater::priv::on_plate_selected(SimpleEvent&)
{
    BOOST_LOG_TRIVIAL(debug) << __FUNCTION__ << ":received plate selected event\n" ;
    //sidebar->obj_list()->on_plate_selected(partplate_list.get_curr_plate_index());
}

void Plater::priv::on_action_request_model_id(wxCommandEvent& evt)
{
    BOOST_LOG_TRIVIAL(debug) << __FUNCTION__ << ":received import model id event\n" ;
    if (q != nullptr) {
        q->import_model_id(evt.GetString().ToStdString());
    }
}

void Plater::priv::on_action_download_project(wxCommandEvent& evt)
{
    BOOST_LOG_TRIVIAL(debug) << __FUNCTION__ << ":received download project event\n" ;
    if (q != nullptr) {
        q->download_project(evt.GetString());
    }
}

//BBS: add slice button status update logic
void Plater::priv::on_slice_button_status(bool enable)
{
    BOOST_LOG_TRIVIAL(debug) << __FUNCTION__ << ": enable = "<<enable<<"\n";
    if (!background_process.running())
        main_frame->update_slice_print_status(MainFrame::eEventObjectUpdate, enable);
}

void Plater::priv::on_action_split_objects(SimpleEvent&)
{
    split_object();
}

void Plater::priv::on_action_split_volumes(SimpleEvent&)
{
    split_volume();
}

void Plater::priv::on_object_select(SimpleEvent& evt)
{
    wxGetApp().obj_list()->update_selections();
    selection_changed();
}

//BBS: repair model through netfabb
void Plater::priv::on_repair_model(wxCommandEvent &event)
{
    wxGetApp().obj_list()->fix_through_netfabb();
}

void Plater::priv::on_filament_color_changed(wxCommandEvent &event)
{
    q->update_platplate_thumbnails(true);
    q->get_preview_canvas3D()->update_plate_thumbnails();
}

void Plater::priv::install_network_plugin(wxCommandEvent &event)
{
    wxGetApp().ShowDownNetPluginDlg();
    return;
}

void Plater::priv::show_install_plugin_hint(wxCommandEvent &event)
{
    notification_manager->bbl_show_plugin_install_notification(into_u8(_L("Network Plug-in is not detected. Network related features are unavailable.")));
}

void Plater::priv::show_preview_only_hint(wxCommandEvent &event)
{
    notification_manager->bbl_show_preview_only_notification(into_u8(_L("Preview only mode:\nThe loaded file contains gcode only, Can not enter the Prepare page")));
}

void Plater::priv::on_right_click(RBtnEvent& evt)
{
    int obj_idx = get_selected_object_idx();

    wxMenu* menu = nullptr;

    if (obj_idx == -1) { // no one or several object are selected
        if (evt.data.second) { // right button was clicked on empty space
            if (!get_selection().is_empty()) // several objects are selected in 3DScene
                return;
            menu = menus.default_menu();
        }
        else {
            if (current_panel == assemble_view) {
                menu = menus.assemble_multi_selection_menu();
            }
            else {
                menu = menus.multi_selection_menu();
            }
        }
    }
    else {
        // If in 3DScene is(are) selected volume(s), but right button was clicked on empty space
        if (evt.data.second)
            return;

        // Each context menu respects to the selected item in ObjectList,
        // so this selection should be updated before menu agyuicreation
        wxGetApp().obj_list()->update_selections();

        if (printer_technology == ptSLA)
            menu = menus.sla_object_menu();
        else {
            const Selection& selection = get_selection();
            // show "Object menu" for each one or several FullInstance instead of FullObject
            const bool is_some_full_instances = selection.is_single_full_instance() ||
                                                selection.is_single_full_object() ||
                                                selection.is_multiple_full_instance();
            const bool is_part = selection.is_single_volume() || selection.is_single_modifier();

            //BBS get assemble view menu
            if (current_panel == assemble_view) {
                menu = is_some_full_instances   ? menus.assemble_object_menu() :
                   is_part                  ? menus.assemble_part_menu()   : menus.assemble_multi_selection_menu();
            } else {
                menu = is_some_full_instances   ? menus.object_menu() :
                       is_part                  ? menus.part_menu()   : menus.multi_selection_menu();
            }
        }
    }

    if (q != nullptr && menu) {
#ifdef __linux__
        // For some reason on Linux the menu isn't displayed if position is specified
        // (even though the position is sane).
        q->PopupMenu(menu);
#else
        //BBS: GUI refactor: move sidebar to the left
        int x, y;
        current_panel->GetPosition(&x, &y);
        q->PopupMenu(menu, (int)evt.data.first.x() + x, (int)evt.data.first.y());
        //q->PopupMenu(menu);
#endif
    }
}

//BBS: add part plate related logic
void Plater::priv::on_plate_right_click(RBtnPlateEvent& evt)
{
    wxMenu* menu = menus.plate_menu();

#ifdef __linux__
    q->PopupMenu(menu);
#else
    //BBS: GUI refactor: move sidebar to the left
    int x, y;
    current_panel->GetPosition(&x, &y);
    q->PopupMenu(menu, (int)evt.data.first.x() + x, (int)evt.data.first.y());
    //q->PopupMenu(menu);
#endif
}

void Plater::priv::on_update_geometry(Vec3dsEvent<2>&)
{
    // TODO
}

void Plater::priv::on_3dcanvas_mouse_dragging_started(SimpleEvent&)
{
    view3D->get_canvas3d()->reset_sequential_print_clearance();
}

// Update the scene from the background processing,
// if the update message was received during mouse manipulation.
void Plater::priv::on_3dcanvas_mouse_dragging_finished(SimpleEvent&)
{
    if (delayed_scene_refresh) {
        delayed_scene_refresh = false;
        update_sla_scene();
    }

    //partplate_list.reload_all_objects();
}

//BBS: add plate id for thumbnail generate param
void Plater::priv::generate_thumbnail(ThumbnailData& data, unsigned int w, unsigned int h, const ThumbnailsParams& thumbnail_params, Camera::EType camera_type)
{
    view3D->get_canvas3d()->render_thumbnail(data, w, h, thumbnail_params, camera_type);
}

//BBS: add plate id for thumbnail generate param
ThumbnailsList Plater::priv::generate_thumbnails(const ThumbnailsParams& params, Camera::EType camera_type)
{
    ThumbnailsList thumbnails;
    for (const Vec2d& size : params.sizes) {
        thumbnails.push_back(ThumbnailData());
        Point isize(size); // round to ints
        generate_thumbnail(thumbnails.back(), isize.x(), isize.y(), params, camera_type);
        if (!thumbnails.back().is_valid())
            thumbnails.pop_back();
    }
    return thumbnails;
}

void Plater::priv::generate_calibration_thumbnail(ThumbnailData& data, unsigned int w, unsigned int h, const ThumbnailsParams& thumbnail_params)
{
    preview->get_canvas3d()->render_calibration_thumbnail(data, w, h, thumbnail_params);
}

PlateBBoxData Plater::priv::generate_first_layer_bbox()
{
    PlateBBoxData bboxdata;
    std::vector<BBoxData>& id_bboxes = bboxdata.bbox_objs;
    BoundingBoxf bbox_all;
    auto                   print = this->background_process.m_fff_print;
    bboxdata.is_seq_print = (print->config().print_sequence == PrintSequence::ByObject);
    bboxdata.first_extruder = print->get_tool_ordering().first_extruder();
    // get nozzle diameter
    auto opt_nozzle_diameters = print->config().option<ConfigOptionFloats>("nozzle_diameter");
    if (opt_nozzle_diameters != nullptr)
        bboxdata.nozzle_diameter = float(opt_nozzle_diameters->get_at(bboxdata.first_extruder));
    //PrintObjectPtrs objects;
    //if (this->printer_technology == ptFFF) {
    //    objects = this->background_process.m_fff_print->objects().vector();
    //}
    //else {
    //    objects = this->background_process.m_sla_print->objects();
    //}
    auto objects = print->objects();
    auto orig = this->partplate_list.get_curr_plate()->get_origin();
    Vec2d orig2d = { orig[0], orig[1] };

    BBoxData data;
    for (auto obj : objects)
    {
        auto bb_scaled = obj->get_first_layer_bbox(data.area, data.layer_height, data.name);
        auto bb = unscaled(bb_scaled);
        bb.min -= orig2d;
        bb.max -= orig2d;
        bbox_all.merge(bb);
        data.area *= (SCALING_FACTOR * SCALING_FACTOR); // unscale area
        data.id = obj->id().id;
        data.bbox = { bb.min.x(),bb.min.y(),bb.max.x(),bb.max.y() };
        id_bboxes.emplace_back(data);
    }

    // add wipe tower bounding box
    if (print->has_wipe_tower()) {
        auto   wt_corners = print->first_layer_wipe_tower_corners();
        // when loading gcode.3mf, wipe tower info may not be correct
        if (!wt_corners.empty()) {
            BoundingBox bb_scaled = {wt_corners[0], wt_corners[2]};
            auto        bb        = unscaled(bb_scaled);
            bb.min -= orig2d;
            bb.max -= orig2d;
            bbox_all.merge(bb);
            data.name = "wipe_tower";
            data.id   = partplate_list.get_curr_plate()->get_index() + 1000;
            data.bbox = {bb.min.x(), bb.min.y(), bb.max.x(), bb.max.y()};
            id_bboxes.emplace_back(data);
        }
    }

    bboxdata.bbox_all = { bbox_all.min.x(),bbox_all.min.y(),bbox_all.max.x(),bbox_all.max.y() };
    return bboxdata;
}

wxString Plater::priv::get_project_filename(const wxString& extension) const
{
    auto full_filename = m_project_folder / std::string((m_project_name + extension).mb_str(wxConvUTF8));
    return m_project_folder.empty() ? "" : from_path(full_filename);
}

wxString Plater::priv::get_project_name()
{
    return m_project_name;
}

//BBS
void Plater::priv::set_project_name(const wxString& project_name)
{
    m_project_name = project_name;
    //update topbar title
#ifdef __WINDOWS__
    wxGetApp().mainframe->topbar()->SetTitle(m_project_name);
#else
    wxGetApp().mainframe->SetTitle(m_project_name);
#endif
}

void Plater::priv::set_project_filename(const wxString& filename)
{
    boost::filesystem::path full_path = into_path(filename);
    boost::filesystem::path ext = full_path.extension();
    //if (boost::iequals(ext.string(), ".amf")) {
    //    // Remove the first extension.
    //    full_path.replace_extension("");
    //    // It may be ".zip.amf".
    //    if (boost::iequals(full_path.extension().string(), ".zip"))
    //        // Remove the 2nd extension.
    //        full_path.replace_extension("");
    //} else {
    //    // Remove just one extension.
    //    full_path.replace_extension("");
    //}
    full_path.replace_extension("");

    m_project_folder = full_path.parent_path();

    //BBS
    wxString project_name = from_u8(full_path.filename().string());
    set_project_name(project_name);

    wxGetApp().mainframe->update_title();

    if (!m_project_folder.empty() && !q->m_only_gcode)
        wxGetApp().mainframe->add_to_recent_projects(filename);
}

void Plater::priv::init_notification_manager()
{
    if (!notification_manager)
        return;
    notification_manager->init();

    auto cancel_callback = [this]() {
        if (this->background_process.idle())
            return false;
        this->background_process.stop();
        return true;
    };
    notification_manager->init_slicing_progress_notification(cancel_callback);
    notification_manager->set_fff(printer_technology == ptFFF);
    notification_manager->init_progress_indicator();
}

void Plater::orient()
{
    p->m_ui_jobs.orient();
}

//BBS: add job state related functions
void Plater::set_prepare_state(int state)
{
    p->m_job_prepare_state = state;
}

int Plater::get_prepare_state()
{
    return p->m_job_prepare_state;
}

void Plater::get_print_job_data(PrintPrepareData* data)
{
    if (data) {
        data->plate_idx = p->m_print_job_data.plate_idx;
        data->_3mf_path = p->m_print_job_data._3mf_path;
        data->_3mf_config_path = p->m_print_job_data._3mf_config_path;
    }
}
int Plater::get_print_finished_event()
{
    return EVT_PRINT_FINISHED;
}

void Plater::priv::set_current_canvas_as_dirty()
{
    if (current_panel == view3D)
        view3D->set_as_dirty();
    else if (current_panel == preview)
        preview->set_as_dirty();
    else if (current_panel == assemble_view)
        assemble_view->set_as_dirty();
}

GLCanvas3D* Plater::priv::get_current_canvas3D()
{
    if (current_panel == view3D)
        return view3D->get_canvas3d();
    else if (current_panel == preview)
        return preview->get_canvas3d();
    else if (current_panel == assemble_view)
        return assemble_view->get_canvas3d();
    else //BBS default set to view3D
        return view3D->get_canvas3d();

    //return (current_panel == view3D) ? view3D->get_canvas3d() : ((current_panel == preview) ? preview->get_canvas3d() : nullptr);
}

void Plater::priv::unbind_canvas_event_handlers()
{
    if (view3D != nullptr)
        view3D->get_canvas3d()->unbind_event_handlers();

    if (preview != nullptr)
        preview->get_canvas3d()->unbind_event_handlers();

    if (assemble_view != nullptr)
        assemble_view->get_canvas3d()->unbind_event_handlers();
}

void Plater::priv::reset_canvas_volumes()
{
    if (view3D != nullptr)
        view3D->get_canvas3d()->reset_volumes();

    if (preview != nullptr)
        preview->get_canvas3d()->reset_volumes();
}

bool Plater::priv::init_collapse_toolbar()
{
    if (wxGetApp().is_gcode_viewer())
        return true;

    if (collapse_toolbar.get_items_count() > 0)
        // already initialized
        return true;

    BackgroundTexture::Metadata background_data;
    background_data.filename = "toolbar_background.png";
    background_data.left = 16;
    background_data.top = 16;
    background_data.right = 16;
    background_data.bottom = 16;

    if (!collapse_toolbar.init(background_data))
        return false;

    collapse_toolbar.set_layout_type(GLToolbar::Layout::Vertical);
    collapse_toolbar.set_horizontal_orientation(GLToolbar::Layout::HO_Right);
    collapse_toolbar.set_vertical_orientation(GLToolbar::Layout::VO_Top);
    collapse_toolbar.set_border(5.0f);
    collapse_toolbar.set_separator_size(5);
    collapse_toolbar.set_gap_size(2);

    GLToolbarItem::Data item;

    item.name = "collapse_sidebar";
    // set collapse svg name
    item.icon_filename = "*.svg";
    item.sprite_id = 0;
    item.left.action_callback = []() {
        wxGetApp().plater()->collapse_sidebar(!wxGetApp().plater()->is_sidebar_collapsed());
    };

    if (!collapse_toolbar.add_item(item))
        return false;

    // Now "collapse" sidebar to current state. This is done so the tooltip
    // is updated before the toolbar is first used.
    wxGetApp().plater()->collapse_sidebar(wxGetApp().plater()->is_sidebar_collapsed());
    return true;
}

void Plater::priv::update_preview_bottom_toolbar()
{
    ;
}

#if 0
void Plater::update_partplate()
{
    sidebar().update_partplate(p->partplate_list);
}
#endif

void Plater::priv::reset_gcode_toolpaths()
{
    preview->get_canvas3d()->reset_gcode_toolpaths();
}

bool Plater::priv::can_set_instance_to_object() const
{
    const int obj_idx = get_selected_object_idx();
    return 0 <= obj_idx && obj_idx < (int)model.objects.size() && model.objects[obj_idx]->instances.size() > 1;
}

bool Plater::priv::can_split(bool to_objects) const
{
    return sidebar->obj_list()->is_splittable(to_objects);
}

bool Plater::priv::can_fillcolor() const
{
    //BBS TODO
    return true;
}

bool Plater::priv::has_assemble_view() const
{
    for (auto object: model.objects)
    {
        for (auto instance : object->instances)
            if (instance->is_assemble_initialized())
                return true;

        int part_cnt = 0;
        for (auto volume : object->volumes) {
            if (volume->is_model_part())
                part_cnt++;
        }

        if (part_cnt > 1)
            return true;
    }
    return false;
}

#if ENABLE_ENHANCED_PRINT_VOLUME_FIT
bool Plater::priv::can_scale_to_print_volume() const
{
    const BuildVolume::Type type = this->bed.build_volume().type();
    return !view3D->get_canvas3d()->get_selection().is_empty() && (type == BuildVolume::Type::Rectangle || type == BuildVolume::Type::Circle);
}
#endif // ENABLE_ENHANCED_PRINT_VOLUME_FIT

bool Plater::priv::can_mirror() const
{
    return get_selection().is_from_single_instance();
}

bool Plater::priv::can_replace_with_stl() const
{
    return get_selection().get_volume_idxs().size() == 1;
}

bool Plater::priv::can_reload_from_disk() const
{
    // struct to hold selected ModelVolumes by their indices
    struct SelectedVolume
    {
        int object_idx;
        int volume_idx;

        // operators needed by std::algorithms
        bool operator < (const SelectedVolume& other) const { return (object_idx < other.object_idx) || ((object_idx == other.object_idx) && (volume_idx < other.volume_idx)); }
        bool operator == (const SelectedVolume& other) const { return (object_idx == other.object_idx) && (volume_idx == other.volume_idx); }
    };
    std::vector<SelectedVolume> selected_volumes;

    const Selection& selection = get_selection();

    // collects selected ModelVolumes
    const std::set<unsigned int>& selected_volumes_idxs = selection.get_volume_idxs();
    for (unsigned int idx : selected_volumes_idxs) {
        const GLVolume* v = selection.get_volume(idx);
        int v_idx = v->volume_idx();
        if (v_idx >= 0) {
            int o_idx = v->object_idx();
            if (0 <= o_idx && o_idx < (int)model.objects.size())
                selected_volumes.push_back({ o_idx, v_idx });
        }
    }
    std::sort(selected_volumes.begin(), selected_volumes.end());
    selected_volumes.erase(std::unique(selected_volumes.begin(), selected_volumes.end()), selected_volumes.end());

    // collects paths of files to load
    std::vector<fs::path> paths;
    for (const SelectedVolume& v : selected_volumes) {
        const ModelObject* object = model.objects[v.object_idx];
        const ModelVolume* volume = object->volumes[v.volume_idx];
        if (!volume->source.input_file.empty())
            paths.push_back(volume->source.input_file);
        else if (!object->input_file.empty() && !volume->name.empty() && !volume->source.is_from_builtin_objects)
            paths.push_back(volume->name);
    }
    std::sort(paths.begin(), paths.end());
    paths.erase(std::unique(paths.begin(), paths.end()), paths.end());

    return !paths.empty();
}

void Plater::priv::update_publish_dialog_status(wxString &msg, int percent)
{
    if (m_publish_dlg)
        m_publish_dlg->UpdateStatus(msg, percent);
}

bool Plater::priv::show_publish_dlg(bool show)
{
    if (q != nullptr) { BOOST_LOG_TRIVIAL(debug) << __FUNCTION__ << ":recevied publish event\n"; }

    if (!m_publish_dlg) m_publish_dlg = new PublishDialog(q);
    if (show) {
        m_publish_dlg->reset();
        m_publish_dlg->start_slicing();
        //m_publish_dlg->Show();
        m_publish_dlg->ShowModal();
    } else {
        m_publish_dlg->EndModal(wxID_OK);
        //cancel the slicing
        if (this->background_process.running())
            this->background_process.stop();
    }
    return true;
}

//BBS: add bed exclude area
void Plater::priv::set_bed_shape(const Pointfs& shape, const Pointfs& exclude_areas, const double printable_height, const std::string& custom_texture, const std::string& custom_model, bool force_as_custom)
{
    //BBS: add shape position
    Vec2d shape_position = partplate_list.get_current_shape_position();
    bool new_shape = bed.set_shape(shape, printable_height, custom_model, force_as_custom, shape_position);

    float prev_height_lid, prev_height_rod;
    partplate_list.get_height_limits(prev_height_lid, prev_height_rod);
    double height_to_lid = config->opt_float("extruder_clearance_height_to_lid");
    double height_to_rod = config->opt_float("extruder_clearance_height_to_rod");

    Pointfs prev_exclude_areas = partplate_list.get_exclude_area();
    new_shape |= (height_to_lid != prev_height_lid) || (height_to_rod != prev_height_rod) || (prev_exclude_areas != exclude_areas);
    if (new_shape) {
        if (view3D) view3D->bed_shape_changed();
        if (preview) preview->bed_shape_changed();

        //BBS: update part plate's size
        // BBS: to be checked
        Vec3d max = bed.extended_bounding_box().max;
        Vec3d min = bed.extended_bounding_box().min;
        double z = config->opt_float("printable_height");

        //Pointfs& exclude_areas = config->option<ConfigOptionPoints>("bed_exclude_area")->values;
        partplate_list.reset_size(max.x() - min.x(), max.y() - min.y(), z);
        partplate_list.set_shapes(shape, exclude_areas, custom_texture, height_to_lid, height_to_rod);
    }
}

bool Plater::priv::can_add_timelapse_wt() const {
    const DynamicPrintConfig &dconfig = wxGetApp().preset_bundle->prints.get_edited_preset().config;
    const ConfigOption* option = dconfig.option("timelapse_no_toolhead");
    bool timelapse_enabled = option?option->getBool():false;

    PartPlate* curr_plate = q->get_partplate_list().get_curr_plate();

    return timelapse_enabled && curr_plate->can_add_timelapse_object();
}

bool Plater::priv::can_delete() const
{
    return !get_selection().is_empty() && !get_selection().is_wipe_tower();
}

bool Plater::priv::can_delete_all() const
{
    return !model.objects.empty();
}

bool Plater::priv::can_add_plate() const
{
    return q->get_partplate_list().get_plate_count() < PartPlateList::MAX_PLATES_COUNT;
}

bool Plater::priv::can_delete_plate() const
{
    return q->get_partplate_list().get_plate_count() > 1;
}

bool Plater::priv::can_fix_through_netfabb() const
{
    std::vector<int> obj_idxs, vol_idxs;
    sidebar->obj_list()->get_selection_indexes(obj_idxs, vol_idxs);

#if FIX_THROUGH_NETFABB_ALWAYS
    // Fixing always.
    return ! obj_idxs.empty() || ! vol_idxs.empty();
#else // FIX_THROUGH_NETFABB_ALWAYS
    // Fixing only if the model is not manifold.
    if (vol_idxs.empty()) {
        for (auto obj_idx : obj_idxs)
            if (model.objects[obj_idx]->get_repaired_errors_count() > 0)
                return true;
        return false;
    }

    int obj_idx = obj_idxs.front();
    for (auto vol_idx : vol_idxs)
        if (model.objects[obj_idx]->get_repaired_errors_count(vol_idx) > 0)
            return true;
    return false;
#endif // FIX_THROUGH_NETFABB_ALWAYS
}

bool Plater::priv::can_simplify() const
{
    // is object for simplification selected
    if (get_selected_object_idx() < 0) return false;
    // is already opened?
    if (q->get_view3D_canvas3D()->get_gizmos_manager().get_current_type() ==
        GLGizmosManager::EType::Simplify)
        return false;
    return true;
}

bool Plater::priv::can_increase_instances() const
{
    if (m_ui_jobs.is_any_running()
     || q->get_view3D_canvas3D()->get_gizmos_manager().is_in_editing_mode())
            return false;

    int obj_idx = get_selected_object_idx();
    return (0 <= obj_idx) && (obj_idx < (int)model.objects.size());
}

bool Plater::priv::can_decrease_instances() const
{
    if (m_ui_jobs.is_any_running()
     || q->get_view3D_canvas3D()->get_gizmos_manager().is_in_editing_mode())
            return false;

    int obj_idx = get_selected_object_idx();
    return (0 <= obj_idx) && (obj_idx < (int)model.objects.size()) && (model.objects[obj_idx]->instances.size() > 1);
}

bool Plater::priv::can_split_to_objects() const
{
    return q->can_split(true);
}

bool Plater::priv::can_split_to_volumes() const
{
    return (printer_technology != ptSLA) && q->can_split(false);
}

bool Plater::priv::can_arrange() const
{
    return !model.objects.empty() && !m_ui_jobs.is_any_running();
}

void Plater::priv::enter_gizmos_stack()
{
    assert(m_undo_redo_stack_active == &m_undo_redo_stack_main);
    if (m_undo_redo_stack_active == &m_undo_redo_stack_main) {
        m_undo_redo_stack_active = &m_undo_redo_stack_gizmos;
        assert(m_undo_redo_stack_active->empty());
        // Take the initial snapshot of the gizmos.
        // Not localized on purpose, the text will never be shown to the user.
        this->take_snapshot(std::string("Gizmos-Initial"));
    }
}

bool Plater::priv::leave_gizmos_stack()
{
    bool changed = false;
    assert(m_undo_redo_stack_active == &m_undo_redo_stack_gizmos);
    if (m_undo_redo_stack_active == &m_undo_redo_stack_gizmos) {
        assert(! m_undo_redo_stack_active->empty());
        changed = m_undo_redo_stack_gizmos.has_undo_snapshot();
        m_undo_redo_stack_active->clear();
        m_undo_redo_stack_active = &m_undo_redo_stack_main;
    }
    return changed;
}

int Plater::priv::get_active_snapshot_index()
{
    const size_t active_snapshot_time = this->undo_redo_stack().active_snapshot_time();
    const std::vector<UndoRedo::Snapshot>& ss_stack = this->undo_redo_stack().snapshots();
    const auto it = std::lower_bound(ss_stack.begin(), ss_stack.end(), UndoRedo::Snapshot(active_snapshot_time));
    return it - ss_stack.begin();
}

void Plater::priv::take_snapshot(const std::string& snapshot_name, const UndoRedo::SnapshotType snapshot_type)
{
    if (m_prevent_snapshots > 0)
        return;
    assert(m_prevent_snapshots >= 0);
    // BBS: single snapshot
    if (m_single && !m_single->check(snapshot_modifies_project(snapshot_type) && (snapshot_name.empty() || snapshot_name.back() != '!')))
        return;
    UndoRedo::SnapshotData snapshot_data;
    snapshot_data.snapshot_type      = snapshot_type;
    snapshot_data.printer_technology = this->printer_technology;
    if (this->sidebar->obj_list()->is_selected(itSettings)) {
        snapshot_data.flags |= UndoRedo::SnapshotData::SELECTED_SETTINGS_ON_SIDEBAR;
        snapshot_data.layer_range_idx = this->sidebar->obj_list()->get_selected_layers_range_idx();
    }
    else if (this->sidebar->obj_list()->is_selected(itLayer)) {
        snapshot_data.flags |= UndoRedo::SnapshotData::SELECTED_LAYER_ON_SIDEBAR;
        snapshot_data.layer_range_idx = this->sidebar->obj_list()->get_selected_layers_range_idx();
    }
    else if (this->sidebar->obj_list()->is_selected(itLayerRoot))
        snapshot_data.flags |= UndoRedo::SnapshotData::SELECTED_LAYERROOT_ON_SIDEBAR;

    // If SLA gizmo is active, ask it if it wants to trigger support generation
    // on loading this snapshot.
    if (view3D->get_canvas3d()->get_gizmos_manager().wants_reslice_supports_on_undo())
        snapshot_data.flags |= UndoRedo::SnapshotData::RECALCULATE_SLA_SUPPORTS;

    //FIXME updating the Wipe tower config values at the ModelWipeTower from the Print config.
    // This is a workaround until we refactor the Wipe Tower position / orientation to live solely inside the Model, not in the Print config.
    // BBS: add partplate logic
    if (this->printer_technology == ptFFF) {
        const DynamicPrintConfig& config = wxGetApp().preset_bundle->prints.get_edited_preset().config;
        const DynamicPrintConfig& proj_cfg = wxGetApp().preset_bundle->project_config;
        const ConfigOptionFloats* tower_x_opt = proj_cfg.option<ConfigOptionFloats>("wipe_tower_x");
        const ConfigOptionFloats* tower_y_opt = proj_cfg.option<ConfigOptionFloats>("wipe_tower_y");
        assert(tower_x_opt->values.size() == tower_y_opt->values.size());
        model.wipe_tower.positions.clear();
        model.wipe_tower.positions.resize(tower_x_opt->values.size());
        for (int plate_idx = 0; plate_idx < tower_x_opt->values.size(); plate_idx++) {
            ModelWipeTower& tower = model.wipe_tower;

            tower.positions[plate_idx] = Vec2d(tower_x_opt->get_at(plate_idx), tower_y_opt->get_at(plate_idx));
            tower.rotation = proj_cfg.opt_float("wipe_tower_rotation_angle");
        }
    }
    const GLGizmosManager& gizmos = view3D->get_canvas3d()->get_gizmos_manager();

    if (snapshot_type == UndoRedo::SnapshotType::ProjectSeparator)
        this->undo_redo_stack().clear();
    this->undo_redo_stack().take_snapshot(snapshot_name, model, view3D->get_canvas3d()->get_selection(), view3D->get_canvas3d()->get_gizmos_manager(), partplate_list, snapshot_data);
    if (snapshot_type == UndoRedo::SnapshotType::LeavingGizmoWithAction) {
        // Filter all but the last UndoRedo::SnapshotType::GizmoAction in a row between the last UndoRedo::SnapshotType::EnteringGizmo and UndoRedo::SnapshotType::LeavingGizmoWithAction.
        // The remaining snapshot will be renamed to a more generic name,
        // depending on what gizmo is being left.
        assert(gizmos.get_current() != nullptr);
        std::string new_name = gizmos.get_current()->get_action_snapshot_name();
        this->undo_redo_stack().reduce_noisy_snapshots(new_name);
    } else if (snapshot_type == UndoRedo::SnapshotType::ProjectSeparator) {
        // Reset the "dirty project" flag.
        m_undo_redo_stack_main.mark_current_as_saved();
    }
    //BBS: add PartPlateList as the paremeter for take_snapshot
    this->undo_redo_stack().release_least_recently_used();

    dirty_state.update_from_undo_redo_stack(m_undo_redo_stack_main.project_modified());

    // Save the last active preset name of a particular printer technology.
    ((this->printer_technology == ptFFF) ? m_last_fff_printer_profile_name : m_last_sla_printer_profile_name) = wxGetApp().preset_bundle->printers.get_selected_preset_name();
    BOOST_LOG_TRIVIAL(info) << "Undo / Redo snapshot taken: " << snapshot_name << ", Undo / Redo stack memory: " << Slic3r::format_memsize_MB(this->undo_redo_stack().memsize()) << log_memory_info();
}

void Plater::priv::undo()
{
    const std::vector<UndoRedo::Snapshot> &snapshots = this->undo_redo_stack().snapshots();
    auto it_current = std::lower_bound(snapshots.begin(), snapshots.end(), UndoRedo::Snapshot(this->undo_redo_stack().active_snapshot_time()));
    // BBS: undo-redo until modify record
    while (--it_current != snapshots.begin() && !snapshot_modifies_project(*it_current));
    if (it_current == snapshots.begin()) return;
    while (--it_current != snapshots.begin() && !snapshot_modifies_project(*it_current));
    this->undo_redo_to(++it_current);
}

void Plater::priv::redo()
{
    const std::vector<UndoRedo::Snapshot> &snapshots = this->undo_redo_stack().snapshots();
    auto it_current = std::lower_bound(snapshots.begin(), snapshots.end(), UndoRedo::Snapshot(this->undo_redo_stack().active_snapshot_time()));
    // BBS: undo-redo until modify record
    while (it_current != snapshots.end() && !snapshot_modifies_project(*it_current++));
    if (it_current != snapshots.end())
        this->undo_redo_to(it_current);
}

void Plater::priv::undo_redo_to(size_t time_to_load)
{
    const std::vector<UndoRedo::Snapshot> &snapshots = this->undo_redo_stack().snapshots();
    auto it_current = std::lower_bound(snapshots.begin(), snapshots.end(), UndoRedo::Snapshot(time_to_load));
    assert(it_current != snapshots.end());
    this->undo_redo_to(it_current);
}

// BBS: check need save or backup
bool Plater::priv::up_to_date(bool saved, bool backup)
{
    size_t& last_time = backup ? m_backup_timestamp : m_saved_timestamp;
    if (saved) {
        last_time = undo_redo_stack_main().active_snapshot_time();
        if (!backup)
            undo_redo_stack_main().mark_current_as_saved();
        return true;
    }
    else {
        return !undo_redo_stack_main().has_real_change_from(last_time);
    }
}

void Plater::priv::undo_redo_to(std::vector<UndoRedo::Snapshot>::const_iterator it_snapshot)
{
    // Make sure that no updating function calls take_snapshot until we are done.
    SuppressSnapshots snapshot_supressor(q);

    bool 				temp_snapshot_was_taken 	= this->undo_redo_stack().temp_snapshot_active();
    PrinterTechnology 	new_printer_technology 		= it_snapshot->snapshot_data.printer_technology;
    bool 				printer_technology_changed 	= this->printer_technology != new_printer_technology;
    if (printer_technology_changed) {
        //BBS do not support SLA
    }
    // Save the last active preset name of a particular printer technology.
    ((this->printer_technology == ptFFF) ? m_last_fff_printer_profile_name : m_last_sla_printer_profile_name) = wxGetApp().preset_bundle->printers.get_selected_preset_name();
    //FIXME updating the Wipe tower config values at the ModelWipeTower from the Print config.
    // This is a workaround until we refactor the Wipe Tower position / orientation to live solely inside the Model, not in the Print config.
    // BBS: add partplate logic
    if (this->printer_technology == ptFFF) {
        const DynamicPrintConfig& config = wxGetApp().preset_bundle->prints.get_edited_preset().config;
        const DynamicPrintConfig& proj_cfg = wxGetApp().preset_bundle->project_config;
        const ConfigOptionFloats* tower_x_opt = proj_cfg.option<ConfigOptionFloats>("wipe_tower_x");
        const ConfigOptionFloats* tower_y_opt = proj_cfg.option<ConfigOptionFloats>("wipe_tower_y");
        assert(tower_x_opt->values.size() == tower_y_opt->values.size());
        model.wipe_tower.positions.clear();
        model.wipe_tower.positions.resize(tower_x_opt->values.size());
        for (int plate_idx = 0; plate_idx < tower_x_opt->values.size(); plate_idx++) {
            ModelWipeTower& tower = model.wipe_tower;

            tower.positions[plate_idx] = Vec2d(tower_x_opt->get_at(plate_idx), tower_y_opt->get_at(plate_idx));
            tower.rotation = proj_cfg.opt_float("wipe_tower_rotation_angle");
        }
    }
    const int layer_range_idx = it_snapshot->snapshot_data.layer_range_idx;
    // Flags made of Snapshot::Flags enum values.
    unsigned int new_flags = it_snapshot->snapshot_data.flags;
    UndoRedo::SnapshotData top_snapshot_data;
    top_snapshot_data.printer_technology = this->printer_technology;
    if (this->sidebar->obj_list()->is_selected(itSettings)) {
        top_snapshot_data.flags |= UndoRedo::SnapshotData::SELECTED_SETTINGS_ON_SIDEBAR;
        top_snapshot_data.layer_range_idx = this->sidebar->obj_list()->get_selected_layers_range_idx();
    }
    else if (this->sidebar->obj_list()->is_selected(itLayer)) {
        top_snapshot_data.flags |= UndoRedo::SnapshotData::SELECTED_LAYER_ON_SIDEBAR;
        top_snapshot_data.layer_range_idx = this->sidebar->obj_list()->get_selected_layers_range_idx();
    }
    else if (this->sidebar->obj_list()->is_selected(itLayerRoot))
        top_snapshot_data.flags |= UndoRedo::SnapshotData::SELECTED_LAYERROOT_ON_SIDEBAR;
    bool   		 new_variable_layer_editing_active = (new_flags & UndoRedo::SnapshotData::VARIABLE_LAYER_EDITING_ACTIVE) != 0;
    bool         new_selected_settings_on_sidebar  = (new_flags & UndoRedo::SnapshotData::SELECTED_SETTINGS_ON_SIDEBAR) != 0;
    bool         new_selected_layer_on_sidebar     = (new_flags & UndoRedo::SnapshotData::SELECTED_LAYER_ON_SIDEBAR) != 0;
    bool         new_selected_layerroot_on_sidebar = (new_flags & UndoRedo::SnapshotData::SELECTED_LAYERROOT_ON_SIDEBAR) != 0;

    if (this->view3D->get_canvas3d()->get_gizmos_manager().wants_reslice_supports_on_undo())
        top_snapshot_data.flags |= UndoRedo::SnapshotData::RECALCULATE_SLA_SUPPORTS;

    // Make a copy of the snapshot, undo/redo could invalidate the iterator
    const UndoRedo::Snapshot snapshot_copy = *it_snapshot;
    // Do the jump in time.
    if (it_snapshot->timestamp < this->undo_redo_stack().active_snapshot_time() ?
        this->undo_redo_stack().undo(model, this->view3D->get_canvas3d()->get_selection(), this->view3D->get_canvas3d()->get_gizmos_manager(), this->partplate_list, top_snapshot_data, it_snapshot->timestamp) :
        this->undo_redo_stack().redo(model, this->view3D->get_canvas3d()->get_gizmos_manager(), this->partplate_list, it_snapshot->timestamp)) {
        if (printer_technology_changed) {
            // Switch to the other printer technology. Switch to the last printer active for that particular technology.
            AppConfig *app_config = wxGetApp().app_config;
            app_config->set("presets", PRESET_PRINTER_NAME, (new_printer_technology == ptFFF) ? m_last_fff_printer_profile_name : m_last_sla_printer_profile_name);
            //FIXME Why are we reloading the whole preset bundle here? Please document. This is fishy and it is unnecessarily expensive.
            // Anyways, don't report any config value substitutions, they have been already reported to the user at application start up.
            wxGetApp().preset_bundle->load_presets(*app_config, ForwardCompatibilitySubstitutionRule::EnableSilent);
            // load_current_presets() calls Tab::load_current_preset() -> TabPrint::update() -> Object_list::update_and_show_object_settings_item(),
            // but the Object list still keeps pointer to the old Model. Avoid a crash by removing selection first.
            this->sidebar->obj_list()->unselect_objects();
            // Load the currently selected preset into the GUI, update the preset selection box.
            // This also switches the printer technology based on the printer technology of the active printer profile.
            wxGetApp().load_current_presets();
        }
        //FIXME updating the Print config from the Wipe tower config values at the ModelWipeTower.
        // This is a workaround until we refactor the Wipe Tower position / orientation to live solely inside the Model, not in the Print config.
        // BBS: add partplate logic
        if (this->printer_technology == ptFFF) {
            const DynamicPrintConfig& config = wxGetApp().preset_bundle->prints.get_edited_preset().config;
            const DynamicPrintConfig& proj_cfg = wxGetApp().preset_bundle->project_config;
            ConfigOptionFloats* tower_x_opt = const_cast<ConfigOptionFloats*>(proj_cfg.option<ConfigOptionFloats>("wipe_tower_x"));
            ConfigOptionFloats* tower_y_opt = const_cast<ConfigOptionFloats*>(proj_cfg.option<ConfigOptionFloats>("wipe_tower_y"));
            // BBS: don't support wipe tower rotation
            //double current_rotation = proj_cfg.opt_float("wipe_tower_rotation_angle");
            bool need_update = false;
            if (tower_x_opt->values.size() != model.wipe_tower.positions.size()) {
                tower_x_opt->clear();
                ConfigOptionFloat default_tower_x(40.f);
                tower_x_opt->resize(model.wipe_tower.positions.size(), &default_tower_x);
                need_update = true;
            }

            if (tower_y_opt->values.size() != model.wipe_tower.positions.size()) {
                tower_y_opt->clear();
                ConfigOptionFloat default_tower_y(200.f);
                tower_y_opt->resize(model.wipe_tower.positions.size(), &default_tower_y);
                need_update = true;
            }

            for (int plate_idx = 0; plate_idx < model.wipe_tower.positions.size(); plate_idx++) {
                if (Vec2d(tower_x_opt->get_at(plate_idx), tower_y_opt->get_at(plate_idx)) != model.wipe_tower.positions[plate_idx]) {
                    ConfigOptionFloat tower_x_new(model.wipe_tower.positions[plate_idx].x());
                    ConfigOptionFloat tower_y_new(model.wipe_tower.positions[plate_idx].y());
                    tower_x_opt->set_at(&tower_x_new, plate_idx, 0);
                    tower_y_opt->set_at(&tower_y_new, plate_idx, 0);
                    need_update = true;
                    break;
                }
            }

            if (need_update) {
                this->update();
            }
        }
        // set selection mode for ObjectList on sidebar
        this->sidebar->obj_list()->set_selection_mode(new_selected_settings_on_sidebar  ? ObjectList::SELECTION_MODE::smSettings :
                                                      new_selected_layer_on_sidebar     ? ObjectList::SELECTION_MODE::smLayer :
                                                      new_selected_layerroot_on_sidebar ? ObjectList::SELECTION_MODE::smLayerRoot :
                                                                                          ObjectList::SELECTION_MODE::smUndef);
        if (new_selected_settings_on_sidebar || new_selected_layer_on_sidebar)
            this->sidebar->obj_list()->set_selected_layers_range_idx(layer_range_idx);

        this->update_after_undo_redo(snapshot_copy, temp_snapshot_was_taken);
    }

    dirty_state.update_from_undo_redo_stack(m_undo_redo_stack_main.project_modified());
}

void Plater::priv::update_after_undo_redo(const UndoRedo::Snapshot& snapshot, bool /* temp_snapshot_was_taken */)
{
    this->view3D->get_canvas3d()->get_selection().clear();
    // Update volumes from the deserializd model, always stop / update the background processing (for both the SLA and FFF technologies).
    this->update((unsigned int)UpdateParams::FORCE_BACKGROUND_PROCESSING_UPDATE | (unsigned int)UpdateParams::POSTPONE_VALIDATION_ERROR_MESSAGE);
    // Release old snapshots if the memory allocated is excessive. This may remove the top most snapshot if jumping to the very first snapshot.
    //if (temp_snapshot_was_taken)
    // Release the old snapshots always, as it may have happened, that some of the triangle meshes got deserialized from the snapshot, while some
    // triangle meshes may have gotten released from the scene or the background processing, therefore now being calculated into the Undo / Redo stack size.
        this->undo_redo_stack().release_least_recently_used();
    //YS_FIXME update obj_list from the deserialized model (maybe store ObjectIDs into the tree?) (no selections at this point of time)
    this->view3D->get_canvas3d()->get_selection().set_deserialized(GUI::Selection::EMode(this->undo_redo_stack().selection_deserialized().mode), this->undo_redo_stack().selection_deserialized().volumes_and_instances);
    this->view3D->get_canvas3d()->get_gizmos_manager().update_after_undo_redo(snapshot);

    wxGetApp().obj_list()->update_after_undo_redo();

    if (wxGetApp().get_mode() == comSimple && model_has_advanced_features(this->model)) {
        // If the user jumped to a snapshot that require user interface with advanced features, switch to the advanced mode without asking.
        // There is a little risk of surprising the user, as he already must have had the advanced or advanced mode active for such a snapshot to be taken.
        Slic3r::GUI::wxGetApp().save_mode(comAdvanced);
        view3D->set_as_dirty();
    }

    // this->update() above was called with POSTPONE_VALIDATION_ERROR_MESSAGE, so that if an error message was generated when updating the back end, it would not open immediately,
    // but it would be saved to be show later. Let's do it now. We do not want to display the message box earlier, because on Windows & OSX the message box takes over the message
    // queue pump, which in turn executes the rendering function before a full update after the Undo / Redo jump.
    this->show_delayed_error_message();

    //FIXME what about the state of the manipulators?
    //FIXME what about the focus? Cursor in the side panel?

    BOOST_LOG_TRIVIAL(info) << "Undo / Redo snapshot reloaded. Undo / Redo stack memory: " << Slic3r::format_memsize_MB(this->undo_redo_stack().memsize()) << log_memory_info();
}

void Plater::priv::bring_instance_forward() const
{
/*#ifdef __APPLE__
    wxGetApp().other_instance_message_handler()->bring_instance_forward();
    return;
#endif //__APPLE__*/
    if (main_frame == nullptr) {
        BOOST_LOG_TRIVIAL(debug) << "Couldnt bring instance forward - mainframe is null";
        return;
    }
    BOOST_LOG_TRIVIAL(debug) << "Bambu Studio window going forward";
    //this code maximize app window on Fedora
    {
        main_frame->Iconize(false);
        if (main_frame->IsMaximized())
            main_frame->Maximize(true);
        else
            main_frame->Maximize(false);
    }
    //this code maximize window on Ubuntu
    {
        main_frame->Restore();
        wxGetApp().GetTopWindow()->SetFocus();  // focus on my window
        wxGetApp().GetTopWindow()->Raise();  // bring window to front
        wxGetApp().GetTopWindow()->Show(true); // show the window
    }
}

//BBS: popup object table
bool Plater::priv::PopupObjectTable(int object_id, int volume_id, const wxPoint& position)
{
    BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(" enter, create ObjectTableDialog");
    int max_width{1920}, max_height{1080};

    max_width = q->GetMaxWidth();
    max_height = q->GetMaxHeight();
    ObjectTableDialog table_dialog(q, q, &model, wxSize(max_width, max_height));
    //m_popup_table = new ObjectTableDialog(q, q,  &model);

    wxRect rect = sidebar->GetRect();
    wxPoint pos = sidebar->ClientToScreen(wxPoint(rect.x, rect.y));

    BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(": show ObjectTableDialog");
    table_dialog.Popup(object_id, volume_id, pos);

    BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(" finished, will destroy ObjectTableDialog");
    return true;
}

void Sidebar::set_btn_label(const ActionButtonType btn_type, const wxString& label) const
{
    switch (btn_type)
    {
        case ActionButtonType::abReslice:   p->btn_reslice->SetLabelText(label);        break;
        case ActionButtonType::abExport:    p->btn_export_gcode->SetLabelText(label);   break;
        case ActionButtonType::abSendGCode: /*p->btn_send_gcode->SetLabelText(label);*/     break;
    }
}

// Plater / Public

Plater::Plater(wxWindow *parent, MainFrame *main_frame)
    : wxPanel(parent, wxID_ANY, wxDefaultPosition, wxGetApp().get_min_size())
    , p(new priv(this, main_frame))
{
    // Initialization performed in the private c-tor
}

bool Plater::Show(bool show)
{
    wxGetApp().mainframe->show_option(show);
    return wxPanel::Show(show);
}

bool Plater::is_project_dirty() const { return p->is_project_dirty(); }
bool Plater::is_presets_dirty() const { return p->is_presets_dirty(); }
void Plater::update_project_dirty_from_presets() { p->update_project_dirty_from_presets(); }
int  Plater::save_project_if_dirty(const wxString& reason) { return p->save_project_if_dirty(reason); }
void Plater::reset_project_dirty_after_save() { p->reset_project_dirty_after_save(); }
void Plater::reset_project_dirty_initial_presets() { p->reset_project_dirty_initial_presets(); }
#if ENABLE_PROJECT_DIRTY_STATE_DEBUG_WINDOW
void Plater::render_project_state_debug_window() const { p->render_project_state_debug_window(); }
#endif // ENABLE_PROJECT_DIRTY_STATE_DEBUG_WINDOW

Sidebar&        Plater::sidebar()           { return *p->sidebar; }
const Model&    Plater::model() const       { return p->model; }
Model&          Plater::model()             { return p->model; }
const Print&    Plater::fff_print() const   { return p->fff_print; }
Print&          Plater::fff_print()         { return p->fff_print; }
const SLAPrint& Plater::sla_print() const   { return p->sla_print; }
SLAPrint&       Plater::sla_print()         { return p->sla_print; }

int Plater::new_project(bool skip_confirm, bool silent)
{
    bool transfer_preset_changes = false;
    // BBS: save confirm
    auto check = [&transfer_preset_changes](bool yes_or_no) {
        wxString header = _L("Some presets are modified.") + "\n" +
            (yes_or_no ? _L("You can keep the modified presets to the new project or discard them") :
                _L("You can keep the modifield presets to the new project, discard or save changes as new presets."));
        using ab = UnsavedChangesDialog::ActionButtons;
        int act_buttons = ab::KEEP;
        if (!yes_or_no)
            act_buttons |= ab::SAVE;
        return wxGetApp().check_and_keep_current_preset_changes(_L("Creating a new project"), header, act_buttons, &transfer_preset_changes);
    };
    int result;
    if (!skip_confirm && (result = close_with_confirm(check)) == wxID_CANCEL)
        return wxID_CANCEL;

    //BBS: add only gcode mode
    bool previous_gcode = m_only_gcode;

    m_only_gcode = false;
    m_exported_file = false;
    get_notification_manager()->bbl_close_plateinfo_notification();
    get_notification_manager()->bbl_close_preview_only_notification();

    if (!silent)
        wxGetApp().mainframe->select_tab(MainFrame::tp3DEditor);

    Plater::TakeSnapshot snapshot(this, "New Project", UndoRedo::SnapshotType::ProjectSeparator);

    //get_partplate_list().reinit();
    //get_partplate_list().update_slice_context_to_current_plate(p->background_process);
    //p->preview->update_gcode_result(p->partplate_list.get_current_slice_result());
    reset(transfer_preset_changes);
    reset_project_dirty_initial_presets();
    wxGetApp().update_saved_preset_from_current_preset();
    update_project_dirty_from_presets();

    //reset project
    p->project.reset();
    //set project name
    p->set_project_name(_L("Untitled"));

    Model m;
    model().load_from(m); // new id avoid same path name
    get_partplate_list().select_plate(0);
    p->load_auxiliary_files();
    wxGetApp().app_config->update_last_backup_dir(model().get_backup_path());

    // BBS set default view and zoom
    p->select_view_3D("3D");
    p->select_view("topfront");
    p->camera.requires_zoom_to_bed = true;
    if (previous_gcode)
        collapse_sidebar(false);

    up_to_date(true, false);
    up_to_date(true, true);
    return wxID_YES;
}



// BBS: FIXME, missing resotre logic
void Plater::load_project(wxString const& filename2,
    wxString const& originfile)
{
    auto filename = filename2;
    auto check = [&filename, this] (bool yes_or_no) {
        if (!yes_or_no && !wxGetApp().check_and_save_current_preset_changes(_L("Load project"),
                _L("Some presets are modified.")))
            return false;
        if (filename.empty()) {
            // Ask user for a project file name.
            wxGetApp().load_project(this, filename);
        }
        return !filename.empty();
    };

    // BSS: save project, force close
    int result;
    if ((result = close_with_confirm(check)) == wxID_CANCEL) {
        return;
    }

    //BBS: add only gcode mode
    bool previous_gcode = m_only_gcode;

    m_only_gcode = false;
    m_exported_file = false;
    get_notification_manager()->bbl_close_plateinfo_notification();
    get_notification_manager()->bbl_close_preview_only_notification();

    auto path     = into_path(filename);

    auto strategy = LoadStrategy::LoadModel | LoadStrategy::LoadConfig;
    if (originfile == "<silence>") {
        strategy = strategy | LoadStrategy::Silence;
    } else if (originfile != "-") {
        strategy = strategy | LoadStrategy::Restore;
    }
    bool load_restore = strategy & LoadStrategy::Restore;

    // Take the Undo / Redo snapshot.
    Plater::TakeSnapshot snapshot(this, "Load Project", UndoRedo::SnapshotType::ProjectSeparator);
    reset();

    std::vector<fs::path> input_paths;
    input_paths.push_back(path);
    if (strategy & LoadStrategy::Restore)
        input_paths.push_back(into_u8(originfile));

    std::vector<size_t> res = load_files(input_paths, strategy);

    reset_project_dirty_initial_presets();
    update_project_dirty_from_presets();

    // if res is empty no data has been loaded
    if (!res.empty() && (load_restore || !(strategy & LoadStrategy::Silence))) {
        p->set_project_filename(load_restore ? originfile : filename);
    }

    // BBS set default 3D view and direction after loading project
    //p->select_view_3D("3D");
    if (!m_exported_file) {
        p->select_view("topfront");
        p->camera.requires_zoom_to_plate = REQUIRES_ZOOM_TO_ALL_PLATE;
        wxGetApp().mainframe->select_tab(MainFrame::tp3DEditor);
    }

    if (previous_gcode)
        collapse_sidebar(false);

    wxGetApp().app_config->update_last_backup_dir(model().get_backup_path());
    if (load_restore && !originfile.empty()) {
        wxGetApp().app_config->update_skein_dir(into_path(originfile).parent_path().string());
        wxGetApp().app_config->update_config_dir(into_path(originfile).parent_path().string());
    }

    if (!load_restore)
        up_to_date(true, false);
    else
        p->dirty_state.update_from_undo_redo_stack(true);
    up_to_date(true, true);
}

// BBS: save logic
int Plater::save_project(bool saveAs)
{
    //if (up_to_date(false, false)) // should we always save
    //    return;
    auto filename = get_project_filename(".3mf");
    if (!saveAs && filename.IsEmpty())
        saveAs = true;
    if (saveAs)
        filename = p->get_export_file(FT_3MF);
    if (filename.empty())
        return wxID_NO;
    if (filename == "<cancel>")
        return wxID_CANCEL;

    //BBS export 3mf without gcode
    export_3mf(into_path(filename), SaveStrategy::SplitModel);

    Slic3r::remove_backup(model(), false);

    p->set_project_filename(filename);

    up_to_date(true, false);
    up_to_date(true, true);

    wxGetApp().update_saved_preset_from_current_preset();
    p->dirty_state.reset_after_save();
    return wxID_YES;
}

//BBS import model by model id
void Plater::import_model_id(const std::string& import_json)
{
    return;
}

//BBS download project by project id
void Plater::download_project(const wxString& project_id)
{
    return;
}

void Plater::request_model_download(std::string import_json)
{
    wxCommandEvent* event = new wxCommandEvent(EVT_IMPORT_MODEL_ID);
    event->SetString(wxString(import_json));
    wxQueueEvent(this, event);
}

void Plater::request_download_project(std::string project_id)
{
    wxCommandEvent* event = new wxCommandEvent(EVT_DOWNLOAD_PROJECT);
    event->SetString(project_id);
    wxQueueEvent(this, event);
}

// BBS: save logic
bool Plater::up_to_date(bool saved, bool backup)
{
    if (saved) {
        Slic3r::clear_other_changes(backup);
        return p->up_to_date(saved, backup);
    }
    return p->model.objects.empty() || (p->up_to_date(saved, backup) &&
                                        !Slic3r::has_other_changes(backup));
}

void Plater::add_model(bool imperial_units/* = false*/)
{
    wxArrayString input_files;
    wxGetApp().import_model(this, input_files);
    if (input_files.empty())
        return;

    std::vector<fs::path> paths;
    for (const auto &file : input_files)
        paths.emplace_back(into_path(file));

    std::string snapshot_label;
    assert(! paths.empty());
    if (paths.size() == 1) {
        snapshot_label = "Import Object";
        snapshot_label += ": ";
        snapshot_label += encode_path(paths.front().filename().string().c_str());
    } else {
        snapshot_label = "Import Objects";
        snapshot_label += ": ";
        snapshot_label += paths.front().filename().string().c_str();
        for (size_t i = 1; i < paths.size(); ++ i) {
            snapshot_label += ", ";
            snapshot_label += encode_path(paths[i].filename().string().c_str());
        }
    }

    Plater::TakeSnapshot snapshot(this, snapshot_label);
    auto strategy = LoadStrategy::LoadModel;
    if (imperial_units) strategy = strategy | LoadStrategy::ImperialUnits;
    if (!load_files(paths, strategy).empty()) {
        wxGetApp().mainframe->update_title();
    }
}

void Plater::import_sl1_archive()
{
    if (!p->m_ui_jobs.is_any_running())
        p->m_ui_jobs.import_sla_arch();
}

void Plater::extract_config_from_project()
{
    wxString input_file;
    wxGetApp().load_project(this, input_file);

    if (! input_file.empty())
        load_files({ into_path(input_file) }, LoadStrategy::LoadConfig);
}

void Plater::load_gcode()
{
    // Ask user for a gcode file name.
    wxString input_file;
    wxGetApp().load_gcode(this, input_file);
    // And finally load the gcode file.
    load_gcode(input_file);
}

//BBS: remove GCodeViewer as seperate APP logic
void Plater::load_gcode(const wxString& filename)
{
    if (! is_gcode_file(into_u8(filename))
        || (m_last_loaded_gcode == filename && m_only_gcode)
        )
        return;

    m_last_loaded_gcode = filename;

    // BSS: create a new project when load_gcode, force close previous one
    if (new_project(false, true) != wxID_YES)
        return;

    m_only_gcode = true;

    // cleanup view before to start loading/processing
    //BBS: update gcode to current partplate's
    GCodeProcessorResult* current_result = p->partplate_list.get_current_slice_result();
    Print& current_print = p->partplate_list.get_current_fff_print();
    //BBS:already reset in new_project
    //current_result->reset();
    //p->gcode_result.reset();
    //reset_gcode_toolpaths();
    p->preview->reload_print(false, m_only_gcode);
    wxGetApp().mainframe->select_tab(MainFrame::tpPreview);
    p->set_current_panel(p->preview, true);
    p->get_current_canvas3D()->render();
    //p->notification_manager->bbl_show_plateinfo_notification(into_u8(_L("Preview only mode for gcode file.")));

    current_print.apply(this->model(), wxGetApp().preset_bundle->full_config());

    wxBusyCursor wait;

    // process gcode
    GCodeProcessor processor;
    try
    {
        processor.process_file(filename.ToUTF8().data());
    }
    catch (const std::exception& ex)
    {
        show_error(this, ex.what());
        return;
    }
    *current_result = std::move(processor.extract_result());
    //current_result->filename = filename;
    current_print.set_gcode_file_ready();

    // show results
    p->preview->reload_print(false, m_only_gcode);
    //BBS: zoom to bed 0 for gcode preview
    //p->preview->get_canvas3d()->zoom_to_gcode();
    p->preview->get_canvas3d()->zoom_to_plate(0);

    if (p->preview->get_canvas3d()->get_gcode_layers_zs().empty()) {
        MessageDialog(this, _L("The selected file") + ":\n" + filename + "\n" + _L("does not contain valid gcode."),
            wxString(GCODEVIEWER_APP_NAME) + " - " + _L("Error occurs while loading G-code file"), wxCLOSE | wxICON_WARNING | wxCENTRE).ShowModal();
        set_project_filename(DEFAULT_PROJECT_NAME);
    }
    else
        set_project_filename(filename);
}

void Plater::reload_gcode_from_disk()
{
    wxString filename(m_last_loaded_gcode);
    m_last_loaded_gcode.clear();
    load_gcode(filename);
}

void Plater::refresh_print()
{
    p->preview->refresh_print();
}

// BBS
wxString Plater::get_project_name()
{
    return p->get_project_name();
}

void Plater::update_platplate_thumbnails(bool force_update)
{
    for (int i = 0; i < get_partplate_list().get_plate_count(); i++) {
        PartPlate* plate = get_partplate_list().get_plate(i);
        ThumbnailsParams thumbnail_params = { {}, false, true, true, true, i};
        if (force_update || !plate->is_valid_gcode_file()) {
            get_view3D_canvas3D()->render_thumbnail(plate->thumbnail_data, plate->plate_thumbnail_width, plate->plate_thumbnail_height, thumbnail_params, Camera::EType::Ortho);
        }
    }
}

// BBS: backup
std::vector<size_t> Plater::load_files(const std::vector<fs::path>& input_files, LoadStrategy strategy, bool ask_multi) { return p->load_files(input_files, strategy, ask_multi); }

// To be called when providing a list of files to the GUI slic3r on command line.
std::vector<size_t> Plater::load_files(const std::vector<std::string>& input_files, LoadStrategy strategy,  bool ask_multi)
{
    std::vector<fs::path> paths;
    paths.reserve(input_files.size());
    for (const std::string& path : input_files)
        paths.emplace_back(path);
    return p->load_files(paths, strategy, ask_multi);
}

enum class LoadType : unsigned char
{
    Unknown,
    OpenProject,
    LoadGeometry,
    LoadConfig
};

class RadioBox;
class RadioSelector
{
public:
    int       m_select_id;
    int       m_groupid;
    RadioBox *m_radiobox;
};
WX_DECLARE_LIST(RadioSelector, RadioSelectorList);

#define PROJECT_DROP_DIALOG_SELECT_PLANE_SIZE wxSize(FromDIP(350), FromDIP(120))
#define PROJECT_DROP_DIALOG_BUTTON_SIZE wxSize(FromDIP(60), FromDIP(24))

class ProjectDropDialog : public DPIDialog
{
private:
    wxColour          m_def_color = wxColour(255, 255, 255);
    RadioSelectorList m_radio_group;
    int               m_action{1};
    bool              m_show_again;

public:
    ProjectDropDialog(const std::string &filename);

    wxPanel *     m_top_line;
    wxStaticText *m_fname_title;
    wxStaticText *m_fname_f;
    wxStaticText *m_fname_s;
    RoundedRectangle * m_panel_select;
    Button *    m_confirm;
    Button *    m_cancel;


    void      select_radio(int index);
    void      on_select_radio(wxMouseEvent &event);
    void      on_select_ok(wxMouseEvent &event);
    void      on_select_cancel(wxMouseEvent &event);

    int       get_select_radio(int groupid);
    int       get_action() const { return m_action; }
    void      set_action(int index) { m_action = index; }

    wxBoxSizer *create_item_checkbox(wxString title, wxWindow *parent, wxString tooltip, std::string param);
    wxBoxSizer *create_item_radiobox(wxString title, wxWindow *parent, int select_id, int groupid);

protected:
    void on_dpi_changed(const wxRect &suggested_rect) override;
};

ProjectDropDialog::ProjectDropDialog(const std::string &filename)
    : DPIDialog(static_cast<wxWindow *>(wxGetApp().mainframe),
                wxID_ANY,
                from_u8((boost::format(_utf8(L("Drop project file")))).str()),
                wxDefaultPosition,
                wxDefaultSize,
                wxCAPTION | wxCLOSE_BOX)
{
    // def setting
    SetBackgroundColour(m_def_color);

    // icon
    std::string icon_path = (boost::format("%1%/images/BambuStudioTitle.ico") % resources_dir()).str();
    SetIcon(wxIcon(encode_path(icon_path.c_str()), wxBITMAP_TYPE_ICO));

    wxBoxSizer *m_sizer_main = new wxBoxSizer(wxVERTICAL);

    m_top_line = new wxPanel(this, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxTAB_TRAVERSAL);
    m_top_line->SetBackgroundColour(wxColour(166, 169, 170));

    m_sizer_main->Add(m_top_line, 0, wxEXPAND, 0);

    m_sizer_main->Add(0, 0, 0, wxEXPAND | wxTOP, 20);

    wxBoxSizer *m_sizer_name = new wxBoxSizer(wxVERTICAL);
    wxBoxSizer *m_sizer_fline = new wxBoxSizer(wxHORIZONTAL);

    m_fname_title = new wxStaticText(this, wxID_ANY, _L("Please select an action"), wxDefaultPosition, wxDefaultSize, 0);
    m_fname_title->Wrap(-1);
    m_fname_title->SetFont(::Label::Body_13);
    m_fname_title->SetForegroundColour(wxColour(107, 107, 107));
    m_fname_title->SetBackgroundColour(wxColour(255, 255, 255));

    m_sizer_fline->Add(m_fname_title, 0, wxALL, 0);
    m_sizer_fline->Add(0, 0, 0, wxEXPAND | wxLEFT, 5);

    m_fname_f = new wxStaticText(this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, 0);
    m_fname_f->SetFont(::Label::Head_13);
    m_fname_f->Wrap(-1);
    m_fname_f->SetForegroundColour(wxColour(38, 46, 48));

    m_sizer_fline->Add(m_fname_f, 1, wxALL, 0);

    m_sizer_name->Add(m_sizer_fline, 1, wxEXPAND, 0);

    m_fname_s = new wxStaticText(this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, 0);
    m_fname_s->SetFont(::Label::Head_13);
    m_fname_s->Wrap(-1);
    m_fname_s->SetForegroundColour(wxColour(38, 46, 48));

    m_sizer_name->Add(m_fname_s, 1, wxALL, 0);

    m_sizer_main->Add(m_sizer_name, 1, wxEXPAND | wxLEFT | wxRIGHT, 40);

    m_sizer_main->Add(0, 0, 0, wxEXPAND | wxTOP, 5);

    m_panel_select = new RoundedRectangle(this, wxColour(248, 248, 248), wxDefaultPosition, PROJECT_DROP_DIALOG_SELECT_PLANE_SIZE, 6);

    wxBoxSizer *m_sizer_select_h = new wxBoxSizer(wxHORIZONTAL);

    wxBoxSizer *m_sizer_select_v = new wxBoxSizer(wxVERTICAL);


    auto select_f = create_item_radiobox(_L("Open as project"), m_panel_select, 1, 0);
    auto select_s = create_item_radiobox(_L("Import geometry only"), m_panel_select, 2, 0);
    //auto select_t = create_item_radiobox(_L("Import presets only"), m_panel_select,3, 0);

    m_sizer_select_v->Add(select_f, 0, wxEXPAND, 5);
    m_sizer_select_v->Add(select_s, 0, wxEXPAND, 5);
    //m_sizer_select_v->Add(select_t, 0, wxEXPAND, 5);
    select_radio(2);

    m_sizer_select_h->Add(m_sizer_select_v, 0, wxALIGN_CENTER | wxLEFT, 22);

    m_panel_select->SetSizer(m_sizer_select_h);
    m_panel_select->Layout();
    m_sizer_main->Add(m_panel_select, 0, wxEXPAND | wxLEFT | wxRIGHT, 40);

    m_sizer_main->Add(0, 0, 0, wxEXPAND | wxTOP, 10);

    wxBoxSizer *m_sizer_bottom = new wxBoxSizer(wxHORIZONTAL);
    wxBoxSizer *m_sizer_left = new wxBoxSizer(wxHORIZONTAL);

    auto dont_show_again = create_item_checkbox(_L("Don't show again"), this, _L("Don't show again"), "show_drop_project_dialog");
    m_sizer_left->Add(dont_show_again, 0, wxALL, 5);

    m_sizer_bottom->Add(m_sizer_left, 0, wxEXPAND, 5);

    m_sizer_bottom->Add(0, 0, 1, wxEXPAND, 5);

    wxBoxSizer *m_sizer_right  = new wxBoxSizer(wxHORIZONTAL);

    m_confirm = new Button(this, _L("OK"));
    StateColor btn_bg_green(std::pair<wxColour, int>(wxColour(27, 136, 68), StateColor::Pressed), std::pair<wxColour, int>(wxColour(61, 203, 115), StateColor::Hovered),
                            std::pair<wxColour, int>(wxColour(0, 174, 66), StateColor::Normal));

    m_confirm->SetBackgroundColor(btn_bg_green);
    m_confirm->SetBorderColor(wxColour(0, 174, 66));
    m_confirm->SetTextColor(wxColour(255, 255, 255));
    m_confirm->SetSize(PROJECT_DROP_DIALOG_BUTTON_SIZE);
    m_confirm->SetMinSize(PROJECT_DROP_DIALOG_BUTTON_SIZE);
    m_confirm->SetCornerRadius(12);
    m_confirm->Bind(wxEVT_LEFT_DOWN, &ProjectDropDialog::on_select_ok, this);
    m_sizer_right->Add(m_confirm, 0, wxALL, 5);

    m_cancel = new Button(this, _L("Cancel"));
    m_cancel->SetTextColor(wxColour(107, 107, 107));
    m_cancel->SetSize(PROJECT_DROP_DIALOG_BUTTON_SIZE);
    m_cancel->SetMinSize(PROJECT_DROP_DIALOG_BUTTON_SIZE);
    m_cancel->SetCornerRadius(12);
    m_cancel->Bind(wxEVT_LEFT_DOWN, &ProjectDropDialog::on_select_cancel, this);
    m_sizer_right->Add(m_cancel, 0, wxALL, 5);

    m_sizer_bottom->Add( m_sizer_right, 0, wxEXPAND, 5 );
    m_sizer_main->Add(m_sizer_bottom, 0, wxEXPAND | wxLEFT | wxRIGHT, 40);
    m_sizer_main->Add(0, 0, 0, wxEXPAND | wxTOP, 20);

    SetSizer(m_sizer_main);
    Layout();
    Fit();
    Centre(wxBOTH);


    auto limit_width   = m_fname_f->GetSize().GetWidth() - 2;
    auto current_width = 0;
    auto cut_index     = 0;
    auto fstring       = wxString("");
    auto bstring       = wxString("");

    //auto file_name = from_u8(filename.c_str());
    auto file_name = wxString(filename);
    for (int x = 0; x < file_name.length(); x++) {
        current_width += m_fname_s->GetTextExtent(file_name[x]).GetWidth();
        cut_index = x;

        if (current_width > limit_width) {
            bstring += file_name[x];
        } else {
            fstring += file_name[x];
        }
    }

    m_fname_f->SetLabel(fstring);
    m_fname_s->SetLabel(bstring);
}

wxBoxSizer *ProjectDropDialog ::create_item_radiobox(wxString title, wxWindow *parent, int select_id, int groupid)
{
    wxBoxSizer *sizer = new wxBoxSizer(wxHORIZONTAL);
    auto radiobox =  new RadioBox(parent);

    radiobox->SetBackgroundColour(wxColour(248,248,248));
    sizer->Add(radiobox, 0, wxALL, 5);
    sizer->Add(0, 0, 0, wxEXPAND | wxLEFT, 5);
    auto text = new wxStaticText(parent, wxID_ANY, title, wxDefaultPosition, wxDefaultSize, 0);
    text->Wrap(-1);
    text->SetForegroundColour(wxColour(107, 107, 107));
    text->SetBackgroundColour(wxColour(248,248,248));
    sizer->Add(text, 0, wxALL, 5);

    radiobox->Bind(wxEVT_LEFT_DOWN, &ProjectDropDialog::on_select_radio, this);
    text->Bind(wxEVT_LEFT_DOWN, [this, radiobox](auto &e) {
        e.SetId(radiobox->GetId());
        on_select_radio(e);
    });

    RadioSelector *rs = new RadioSelector;
    rs->m_groupid     = groupid;
    rs->m_radiobox    = radiobox;
    rs->m_select_id   = select_id;
    m_radio_group.Append(rs);

    return sizer;
}
wxBoxSizer *ProjectDropDialog::create_item_checkbox(wxString title, wxWindow *parent, wxString tooltip, std::string param)
{
    wxBoxSizer *m_sizer_checkbox = new wxBoxSizer(wxHORIZONTAL);

    m_sizer_checkbox->Add(0, 0, 0, wxEXPAND | wxLEFT, 5);

    auto checkbox = new ::CheckBox(parent);
    m_sizer_checkbox->Add(checkbox, 0, wxALIGN_CENTER, 0);
    m_sizer_checkbox->Add(0, 0, 0, wxEXPAND | wxLEFT, 8);

    auto checkbox_title = new wxStaticText(parent, wxID_ANY, title, wxDefaultPosition, wxSize(-1, -1), 0);
    checkbox_title->SetForegroundColour(wxColour(144,144,144));
    checkbox_title->SetFont(::Label::Body_13);
    checkbox_title->Wrap(-1);
    m_sizer_checkbox->Add(checkbox_title, 0, wxALIGN_CENTER | wxALL, 3);

     m_show_again = wxGetApp().app_config->get(param) == "true" ? true : false;
    checkbox->SetValue(m_show_again);

    checkbox->Bind(wxEVT_TOGGLEBUTTON, [this, checkbox, param](wxCommandEvent &e) {
        m_show_again = m_show_again ? false : true;
        e.Skip();
    });

    return m_sizer_checkbox;
}

void ProjectDropDialog::select_radio(int index)
{
    m_action                         = index;
    RadioSelectorList::Node *node    = m_radio_group.GetFirst();
    auto                     groupid = 0;

    while (node) {
        RadioSelector *rs = node->GetData();
        if (rs->m_select_id == index) groupid = rs->m_groupid;
        node = node->GetNext();
    }

    node = m_radio_group.GetFirst();
    while (node) {
        RadioSelector *rs = node->GetData();
        if (rs->m_groupid == groupid && rs->m_select_id == index) rs->m_radiobox->SetValue(true);
        if (rs->m_groupid == groupid && rs->m_select_id != index) rs->m_radiobox->SetValue(false);
        node = node->GetNext();
    }
}

int ProjectDropDialog::get_select_radio(int groupid)
{
    RadioSelectorList::Node *node = m_radio_group.GetFirst();
    while (node) {
        RadioSelector *rs = node->GetData();
        if (rs->m_groupid == groupid && rs->m_radiobox->GetValue()) { return rs->m_select_id; }
        node = node->GetNext();
    }

    return 0;
}
void ProjectDropDialog::on_select_radio(wxMouseEvent &event)
{
    RadioSelectorList::Node *node    = m_radio_group.GetFirst();
    auto                     groupid = 0;

    while (node) {
        RadioSelector *rs = node->GetData();
        if (rs->m_radiobox->GetId() == event.GetId()) groupid = rs->m_groupid;
        node = node->GetNext();
    }

    node = m_radio_group.GetFirst();
    while (node) {
        RadioSelector *rs = node->GetData();
        if (rs->m_groupid == groupid && rs->m_radiobox->GetId() == event.GetId()) {
            set_action(rs->m_select_id);
            rs->m_radiobox->SetValue(true);
        }


        if (rs->m_groupid == groupid && rs->m_radiobox->GetId() != event.GetId()) rs->m_radiobox->SetValue(false);
        node = node->GetNext();
    }
}

void ProjectDropDialog::on_select_ok(wxMouseEvent &event)
{
    wxGetApp().app_config->set_bool("show_drop_project_dialog", m_show_again);
    EndModal(wxID_OK);
}

void ProjectDropDialog::on_select_cancel(wxMouseEvent &event)
{
    EndModal(wxID_CANCEL);
}

void ProjectDropDialog::on_dpi_changed(const wxRect& suggested_rect)
{
    m_confirm->SetMinSize(PROJECT_DROP_DIALOG_BUTTON_SIZE);
    m_cancel->SetMinSize(PROJECT_DROP_DIALOG_BUTTON_SIZE);
    Fit();
    Refresh();
}

//BBS: remove GCodeViewer as seperate APP logic
bool Plater::load_files(const wxArrayString& filenames)
{
    const std::regex pattern_drop(".*[.](stp|step|stl|obj|amf|3mf)", std::regex::icase);
    const std::regex pattern_gcode_drop(".*[.](gcode|g)", std::regex::icase);

    std::vector<fs::path> normal_paths;
    std::vector<fs::path> gcode_paths;

    for (const auto& filename : filenames) {
        fs::path path(into_path(filename));
        if (std::regex_match(path.string(), pattern_drop))
            normal_paths.push_back(std::move(path));
        else if (std::regex_match(path.string(), pattern_gcode_drop))
            gcode_paths.push_back(std::move(path));
        else
            continue;
    }

    BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(": normal_paths %1%, gcode_paths %2%")%normal_paths.size() %gcode_paths.size();
    if (normal_paths.empty() && gcode_paths.empty()) {
        BOOST_LOG_TRIVIAL(error) << __FUNCTION__ << boost::format(": can not find valid path, return directly");
        // Likely no supported files
        return false;
    }
    else if (normal_paths.empty()){
        //only gcode files
        if (gcode_paths.size() > 1) {
            show_info(this, _L("Only one G-code file can be opened at the same time."), _L("G-code loading"));
            return false;
        }
        load_gcode(from_path(gcode_paths.front()));
        return true;
    }

    if (!gcode_paths.empty()) {
        show_info(this, _L("G-code files can not be loaded with models together!"), _L("G-code loading"));
        return false;
    }

    //// searches for project files
    //for (std::vector<fs::path>::const_reverse_iterator it = normal_paths.rbegin(); it != normal_paths.rend(); ++it) {
    //    std::string filename = (*it).filename().string();
    //    ////BBS: only 3mf will be treated as project file
    //    if (open_3mf_file((*it)))
    //        return true;
    //}

    //// other files
    std::string snapshot_label;
    assert(!normal_paths.empty());
    if (normal_paths.size() == 1) {
        snapshot_label = "Load File";
        snapshot_label += ": ";
        snapshot_label += encode_path(normal_paths.front().filename().string().c_str());
    } else {
        snapshot_label = "Load Files";
        snapshot_label += ": ";
        snapshot_label += encode_path(normal_paths.front().filename().string().c_str());
        for (size_t i = 1; i < normal_paths.size(); ++i) {
            snapshot_label += ", ";
            snapshot_label += encode_path(normal_paths[i].filename().string().c_str());
        }
    }

    Plater::TakeSnapshot snapshot(this, snapshot_label);
    //load_files(normal_paths, LoadStrategy::LoadModel);

    // BBS: check file types
    std::sort(normal_paths.begin(), normal_paths.end(), [](fs::path obj1, fs::path obj2) { return obj1.filename().string() < obj2.filename().string(); });

    auto loadfiles_type  = LoadFilesType::NoFile;
    auto amf_files_count = get_3mf_file_count(normal_paths);

    if (normal_paths.size() > 1 && amf_files_count < normal_paths.size()) { loadfiles_type = LoadFilesType::Multiple3MFOther; }
    if (normal_paths.size() > 1 && amf_files_count == normal_paths.size()) { loadfiles_type = LoadFilesType::Multiple3MF; }
    if (normal_paths.size() > 1 && amf_files_count == 0) { loadfiles_type = LoadFilesType::MultipleOther; }
    if (normal_paths.size() == 1 && amf_files_count == 1) { loadfiles_type = LoadFilesType::Single3MF; };
    if (normal_paths.size() == 1 && amf_files_count == 0) { loadfiles_type = LoadFilesType::SingleOther; };

    auto first_file = std::vector<fs::path>{};
    auto tmf_file   = std::vector<fs::path>{};
    auto other_file = std::vector<fs::path>{};
    auto res        = true;

    if (this->m_only_gcode || this->m_exported_file) {
        if ((loadfiles_type == LoadFilesType::SingleOther)
            || (loadfiles_type == LoadFilesType::MultipleOther)) {
            show_info(this, _L("Can not add models when in preview mode!"), _L("Add Models"));
            return false;
        }
    }

    switch (loadfiles_type) {
    case LoadFilesType::Single3MF:
        open_3mf_file(normal_paths[0]);
        break;

    case LoadFilesType::SingleOther:
        if (load_files(normal_paths, LoadStrategy::LoadModel, false).empty()) { res = false; }
        break;

    case LoadFilesType::Multiple3MF:
        first_file = std::vector<fs::path>{normal_paths[0]};
        for (auto i = 0; i < normal_paths.size(); i++) {
            if (i > 0) { other_file.push_back(normal_paths[i]); }
        };

        open_3mf_file(first_file[0]);
        if (load_files(other_file, LoadStrategy::LoadModel).empty()) {  res = false;  }
        break;

    case LoadFilesType::MultipleOther:
        if (load_files(normal_paths, LoadStrategy::LoadModel, true).empty()) {  res = false;  }
        break;

    case LoadFilesType::Multiple3MFOther:
        for (const auto &path : normal_paths) {
            if (wxString(encode_path(path.filename().string().c_str())).EndsWith("3mf")) {
                if (first_file.size() <= 0)
                    first_file.push_back(path);
                else
                    tmf_file.push_back(path);
            } else {
                other_file.push_back(path);
            }
        }

        open_3mf_file(first_file[0]);
        if (load_files(tmf_file, LoadStrategy::LoadModel).empty()) {  res = false;  }
        if (load_files(other_file, LoadStrategy::LoadModel, false).empty()) {  res = false;  }
        break;
    default: break;
    }

    return res;
}


bool Plater::open_3mf_file(const fs::path &file_path)
{
    std::string filename = encode_path(file_path.filename().string().c_str());
    if (!boost::algorithm::iends_with(filename, ".3mf")) {
        return false;
    }

    LoadType load_type = LoadType::Unknown;
    if (!model().objects.empty()) {
        bool show_drop_project_dialog = true;
        if (show_drop_project_dialog) {
            ProjectDropDialog dlg(filename);
            if (dlg.ShowModal() == wxID_OK) {
                int choice = dlg.get_action();
                load_type  = static_cast<LoadType>(choice);
                wxGetApp().app_config->set("import_project_action", std::to_string(choice));

                // BBS: jump to plater panel
                wxGetApp().mainframe->select_tab(MainFrame::tp3DEditor);
            }
        } else
            load_type = static_cast<LoadType>(
                std::clamp(std::stoi(wxGetApp().app_config->get("import_project_action")), static_cast<int>(LoadType::OpenProject), static_cast<int>(LoadType::LoadConfig)));
    } else
        load_type = LoadType::OpenProject;

    if (load_type == LoadType::Unknown) return false;

    struct AllowSnapshots {
        AllowSnapshots(Plater *plater) : m_plater(plater) { m_plater->allow_snapshots(); }
        ~AllowSnapshots() { m_plater->suppress_snapshots(); }
		Plater *m_plater;
    };
    switch (load_type) {
        case LoadType::OpenProject: {
            // remove snapshot taken by load_files and add_file
            AllowSnapshots as(this);
            if (wxGetApp().can_load_project())
                load_project(from_path(file_path));
            break;
        }
        case LoadType::LoadGeometry: {
            Plater::TakeSnapshot snapshot(this, "Import Object");
            load_files({file_path}, LoadStrategy::LoadModel);
            break;
        }
        case LoadType::LoadConfig: {
            load_files({file_path}, LoadStrategy::LoadConfig);
            break;
        }
        case LoadType::Unknown: {
            assert(false);
            break;
        }
    }
    return true;
}

int Plater::get_3mf_file_count(std::vector<fs::path> paths)
{
    auto count = 0;
    for (const auto &path : paths) {
        if (wxString(encode_path(path.filename().string().c_str())).EndsWith("3mf")) count++;
    }
    return count;
}

void Plater::add_file()
{
    wxArrayString input_files;
    wxGetApp().import_model(this, input_files);
    if (input_files.empty()) return;

    std::vector<fs::path> paths;
    for (const auto &file : input_files) paths.emplace_back(into_path(file));

    std::string snapshot_label;
    assert(!paths.empty());

    snapshot_label = "Import Objects";
    snapshot_label += ": ";
    snapshot_label += encode_path(paths.front().filename().string().c_str());
    for (size_t i = 1; i < paths.size(); ++i) {
        snapshot_label += ", ";
        snapshot_label += encode_path(paths[i].filename().string().c_str());
    }

    Plater::TakeSnapshot snapshot(this, snapshot_label);

    // BBS: check file types
    auto loadfiles_type  = LoadFilesType::NoFile;
    auto amf_files_count = get_3mf_file_count(paths);

    if (paths.size() > 1 && amf_files_count < paths.size()) { loadfiles_type = LoadFilesType::Multiple3MFOther; }
    if (paths.size() > 1 && amf_files_count == paths.size()) { loadfiles_type = LoadFilesType::Multiple3MF; }
    if (paths.size() > 1 && amf_files_count == 0) { loadfiles_type = LoadFilesType::MultipleOther; }
    if (paths.size() == 1 && amf_files_count == 1) { loadfiles_type = LoadFilesType::Single3MF; };
    if (paths.size() == 1 && amf_files_count == 0) { loadfiles_type = LoadFilesType::SingleOther; };

    auto first_file = std::vector<fs::path>{};
    auto tmf_file   = std::vector<fs::path>{};
    auto other_file = std::vector<fs::path>{};

    switch (loadfiles_type)
    {
    case LoadFilesType::Single3MF:
        open_3mf_file(paths[0]);
    	break;

    case LoadFilesType::SingleOther:
        if (!load_files(paths, LoadStrategy::LoadModel, false).empty()) { wxGetApp().mainframe->update_title(); }
        break;

    case LoadFilesType::Multiple3MF:
        first_file = std::vector<fs::path>{paths[0]};
        for (auto i = 0; i < paths.size(); i++) {
            if (i > 0) { other_file.push_back(paths[i]); }
        };

        open_3mf_file(first_file[0]);
        if (!load_files(other_file, LoadStrategy::LoadModel).empty()) { wxGetApp().mainframe->update_title(); }
        break;

    case LoadFilesType::MultipleOther:
        if (!load_files(paths, LoadStrategy::LoadModel, true).empty()) {
            wxGetApp().mainframe->update_title();
        }
        break;

    case LoadFilesType::Multiple3MFOther:
        for (const auto &path : paths) {
            if (wxString(encode_path(path.filename().string().c_str())).EndsWith("3mf")) {
                if (first_file.size() <= 0)
                    first_file.push_back(path);
                else
                    tmf_file.push_back(path);
            } else {
                other_file.push_back(path);
            }
        }

        open_3mf_file(first_file[0]);
        load_files(tmf_file, LoadStrategy::LoadModel);
        if (!load_files(other_file, LoadStrategy::LoadModel, false).empty()) { wxGetApp().mainframe->update_title(); }
        break;
    default:break;
    }
}

void Plater::update() { p->update(); }

void Plater::object_list_changed() { p->object_list_changed(); }

void Plater::stop_jobs() { p->m_ui_jobs.stop_all(); }

bool Plater::is_any_job_running() const
{
    return p->m_ui_jobs.is_any_running();
}

void Plater::update_ui_from_settings() { p->update_ui_from_settings(); }

void Plater::select_view(const std::string& direction) { p->select_view(direction); }

//BBS: add no_slice logic
void Plater::select_view_3D(const std::string& name, bool no_slice) { p->select_view_3D(name, no_slice); }

bool Plater::is_preview_shown() const { return p->is_preview_shown(); }
bool Plater::is_preview_loaded() const { return p->is_preview_loaded(); }
bool Plater::is_view3D_shown() const { return p->is_view3D_shown(); }

bool Plater::are_view3D_labels_shown() const { return p->are_view3D_labels_shown(); }
void Plater::show_view3D_labels(bool show) { p->show_view3D_labels(show); }

bool Plater::is_sidebar_collapsed() const { return p->is_sidebar_collapsed(); }
void Plater::collapse_sidebar(bool show) { p->collapse_sidebar(show); }

//BBS
void Plater::select_curr_plate_all() { p->select_curr_plate_all(); }
void Plater::remove_curr_plate_all() { p->remove_curr_plate_all(); }

void Plater::select_all() { p->select_all(); }
void Plater::deselect_all() { p->deselect_all(); }

void Plater::remove(size_t obj_idx) { p->remove(obj_idx); }
void Plater::reset(bool apply_presets_change) { p->reset(apply_presets_change); }
void Plater::reset_with_confirm()
{
    if (p->model.objects.empty() || MessageDialog(static_cast<wxWindow *>(this), _L("All objects will be removed, continue?"),
                                                  wxString(SLIC3R_APP_FULL_NAME) + " - " + _L("Delete all"), wxYES_NO | wxCANCEL | wxYES_DEFAULT | wxCENTRE)
                                            .ShowModal() == wxID_YES) {
        reset();
        // BBS: jump to plater panel
        wxGetApp().mainframe->select_tab(size_t(0));
    }
}

// BBS: save logic
int GUI::Plater::close_with_confirm(std::function<bool(bool)> second_check)
{
    if (up_to_date(false, false)) {
        if (second_check && !second_check(false)) return wxID_CANCEL;
        model().set_backup_path("");
        return wxID_NO;
    }

    auto result = MessageDialog(static_cast<wxWindow*>(this), _L("The current project has unsaved changes, save it before continue?"),
        wxString(SLIC3R_APP_FULL_NAME) + " - " + _L("Save"), wxYES_NO | wxCANCEL | wxYES_DEFAULT | wxCENTRE).ShowModal();
    if (result == wxID_CANCEL)
        return result;
    else if (result == wxID_YES) {
        result = save_project();
        if (result == wxID_CANCEL)
            return result;
    }

    if (second_check && !second_check(result == wxID_YES)) return wxID_CANCEL;

    model().set_backup_path("");
    up_to_date(true, false);
    up_to_date(true, true);

    return result;
}

//BBS: trigger a restore project event
void Plater::trigger_restore_project(int skip_confirm)
{
    auto evt = new wxCommandEvent(EVT_RESTORE_PROJECT, this->GetId());
    evt->SetInt(skip_confirm);
    wxQueueEvent(this, evt);
    //wxPostEvent(this, *evt);
}

//BBS
void Plater::delete_object_from_model(size_t obj_idx, bool refresh_immediately) { p->delete_object_from_model(obj_idx, refresh_immediately); }

//BBS: delete all from model
void Plater::delete_all_objects_from_model()
{
    p->delete_all_objects_from_model();
}

void Plater::remove_selected()
{
    /*if (p->get_selection().is_empty())
        return;*/
    if (p->get_curr_selection().is_empty())
        return;

    // BBS: check before deleting object
    if (!p->can_delete())
        return;

    Plater::TakeSnapshot snapshot(this, "Delete Selected Objects");
    p->m_ui_jobs.cancel_all();

    //BBS delete current selected
    // p->view3D->delete_selected();
    p->get_current_canvas3D()->delete_selected();
}

void Plater::increase_instances(size_t num)
{
    // BBS
#if 0
    if (! can_increase_instances()) { return; }

    Plater::TakeSnapshot snapshot(this, "Increase Instances");

    int obj_idx = p->get_selected_object_idx();

    ModelObject* model_object = p->model.objects[obj_idx];
    ModelInstance* model_instance = model_object->instances.back();

    bool was_one_instance = model_object->instances.size()==1;

    double offset_base = canvas3D()->get_size_proportional_to_max_bed_size(0.05);
    double offset = offset_base;
    for (size_t i = 0; i < num; i++, offset += offset_base) {
        Vec3d offset_vec = model_instance->get_offset() + Vec3d(offset, offset, 0.0);
        model_object->add_instance(offset_vec, model_instance->get_scaling_factor(), model_instance->get_rotation(), model_instance->get_mirror());
//        p->print.get_object(obj_idx)->add_copy(Slic3r::to_2d(offset_vec));
    }

#ifdef SUPPORT_AUTO_CENTER
    if (p->get_config("autocenter") == "true")
        arrange();
#endif

    p->update();

    p->get_selection().add_instance(obj_idx, (int)model_object->instances.size() - 1);

    sidebar().obj_list()->increase_object_instances(obj_idx, was_one_instance ? num + 1 : num);

    p->selection_changed();
    this->p->schedule_background_process();
#endif
}

void Plater::decrease_instances(size_t num)
{
    // BBS
#if 0
    if (! can_decrease_instances()) { return; }

    Plater::TakeSnapshot snapshot(this, "Decrease Instances");

    int obj_idx = p->get_selected_object_idx();

    ModelObject* model_object = p->model.objects[obj_idx];
    if (model_object->instances.size() > num) {
        for (size_t i = 0; i < num; ++ i)
            model_object->delete_last_instance();
        p->update();
        // Delete object from Sidebar list. Do it after update, so that the GLScene selection is updated with the modified model.
        sidebar().obj_list()->decrease_object_instances(obj_idx, num);
    }
    else {
        remove(obj_idx);
    }

    if (!model_object->instances.empty())
        p->get_selection().add_instance(obj_idx, (int)model_object->instances.size() - 1);

    p->selection_changed();
    this->p->schedule_background_process();
#endif
}

static long GetNumberFromUser(  const wxString& msg,
                                const wxString& prompt,
                                const wxString& title,
                                long value,
                                long min,
                                long max,
                                wxWindow* parent)
{
#ifdef _WIN32
    wxNumberEntryDialog dialog(parent, msg, prompt, title, value, min, max, wxDefaultPosition);
    wxGetApp().UpdateDlgDarkUI(&dialog);
    if (dialog.ShowModal() == wxID_OK)
        return dialog.GetValue();

    return -1;
#else
    return wxGetNumberFromUser(msg, prompt, title, value, min, max, parent);
#endif
}

void Plater::set_number_of_copies(/*size_t num*/)
{
    int obj_idx = p->get_selected_object_idx();
    if (obj_idx == -1)
        return;

    ModelObject* model_object = p->model.objects[obj_idx];

    const int num = GetNumberFromUser( " ", _L("Number of copies:"),
                                    _L("Copies of the selected object"), model_object->instances.size(), 0, 1000, this );
    if (num < 0)
        return;

    Plater::TakeSnapshot snapshot(this, (boost::format("Set numbers of copies to %1%")%num).str());

    int diff = num - (int)model_object->instances.size();
    if (diff > 0)
        increase_instances(diff);
    else if (diff < 0)
        decrease_instances(-diff);
}

void Plater::fill_bed_with_instances()
{
    if (!p->m_ui_jobs.is_any_running())
        p->m_ui_jobs.fill_bed();
}

bool Plater::is_selection_empty() const
{
    return p->get_selection().is_empty() || p->get_selection().is_wipe_tower();
}

void Plater::scale_selection_to_fit_print_volume()
{
    p->scale_selection_to_fit_print_volume();
}

void Plater::convert_unit(ConversionType conv_type)
{
    std::vector<int> obj_idxs, volume_idxs;
    wxGetApp().obj_list()->get_selection_indexes(obj_idxs, volume_idxs);
    if (obj_idxs.empty() && volume_idxs.empty())
        return;

    TakeSnapshot snapshot(this, conv_type == ConversionType::CONV_FROM_INCH  ? "Convert from imperial units" :
                                conv_type == ConversionType::CONV_TO_INCH    ? "Revert conversion from imperial units" :
                                conv_type == ConversionType::CONV_FROM_METER ? "Convert from meters" : "Revert conversion from meters");
    wxBusyCursor wait;

    ModelObjectPtrs objects;
    std::reverse(obj_idxs.begin(), obj_idxs.end());
    for (int obj_idx : obj_idxs) {
        ModelObject *object = p->model.objects[obj_idx];
        object->convert_units(objects, conv_type, volume_idxs);
        remove(obj_idx);
    }
    std::reverse(objects.begin(), objects.end());
    p->load_model_objects(objects);

    Selection& selection = p->view3D->get_canvas3d()->get_selection();
    size_t last_obj_idx = p->model.objects.size() - 1;

    if (volume_idxs.empty()) {
        for (size_t i = 0; i < objects.size(); ++i)
            selection.add_object((unsigned int)(last_obj_idx - i), i == 0);
    }
    else {
        for (int vol_idx : volume_idxs)
            selection.add_volume(last_obj_idx, vol_idx, 0, false);
    }
}

// BBS: replace z with plane_points
void Plater::cut(size_t obj_idx, size_t instance_idx, std::array<Vec3d, 4> plane_points, ModelObjectCutAttributes attributes)
{
    wxCHECK_RET(obj_idx < p->model.objects.size(), "obj_idx out of bounds");
    auto *object = p->model.objects[obj_idx];

    wxCHECK_RET(instance_idx < object->instances.size(), "instance_idx out of bounds");

    if (! attributes.has(ModelObjectCutAttribute::KeepUpper) && ! attributes.has(ModelObjectCutAttribute::KeepLower))
        return;

    Plater::TakeSnapshot snapshot(this, "Cut by Plane");

    wxBusyCursor wait;
    // BBS: replace z with plane_points
    const auto new_objects = object->cut(instance_idx, plane_points, attributes);

    remove(obj_idx);
    p->load_model_objects(new_objects);

    Selection& selection = p->get_selection();
    size_t last_id = p->model.objects.size() - 1;
    for (size_t i = 0; i < new_objects.size(); ++i)
        selection.add_object((unsigned int)(last_id - i), i == 0);
}

// BBS
void Plater::segment(size_t obj_idx, size_t instance_idx, double smoothing_alpha, int segment_number)
{
    wxCHECK_RET(obj_idx < p->model.objects.size(), "obj_idx out of bounds");
    auto* object = p->model.objects[obj_idx];

    wxCHECK_RET(instance_idx < object->instances.size(), "instance_idx out of bounds");

    Plater::TakeSnapshot snapshot(this, "Segment");

    wxBusyCursor wait;
    // real process
    PresetBundle& preset_bundle = *wxGetApp().preset_bundle;
    const auto print_tech = preset_bundle.printers.get_edited_preset().printer_technology();
    const size_t filament_cnt = print_tech != ptFFF ? 1 : preset_bundle.filament_presets.size();
    const auto new_objects = object->segment(instance_idx, filament_cnt, smoothing_alpha, segment_number);

    remove(obj_idx);
    p->load_model_objects(new_objects);

    Selection& selection = p->get_selection();
    size_t last_id = p->model.objects.size() - 1;
    for (size_t i = 0; i < new_objects.size(); ++i)
    {
        selection.add_object((unsigned int)(last_id - i), i == 0);
    }
}

// BBS
void Plater::merge(size_t obj_idx, std::vector<int>& vol_indeces)
{
    wxCHECK_RET(obj_idx < p->model.objects.size(), "obj_idx out of bounds");
    auto* object = p->model.objects[obj_idx];

    Plater::TakeSnapshot snapshot(this, "Merge");

    wxBusyCursor wait;
    // real process
    PresetBundle& preset_bundle = *wxGetApp().preset_bundle;
    const auto print_tech = preset_bundle.printers.get_edited_preset().printer_technology();
    // BBS
    const size_t filament_cnt = print_tech != ptFFF ? 1 : preset_bundle.filament_presets.size();

    const auto new_objects = object->merge_volumes(vol_indeces);

    remove(obj_idx);
    p->load_model_objects(new_objects);

    Selection& selection = p->get_selection();
    size_t last_id = p->model.objects.size() - 1;
    for (size_t i = 0; i < new_objects.size(); ++i)
    {
        selection.add_object((unsigned int)(last_id - i), i == 0);
    }
}

void Plater::export_gcode(bool prefer_removable)
{
    if (p->model.objects.empty())
        return;

    //if (get_view3D_canvas3D()->get_gizmos_manager().is_in_editing_mode(true))
    //    return;

    if (p->process_completed_with_error)
        return;

    // If possible, remove accents from accented latin characters.
    // This function is useful for generating file names to be processed by legacy firmwares.
    fs::path default_output_file;
    try {
        // Update the background processing, so that the placeholder parser will get the correct values for the ouput file template.
        // Also if there is something wrong with the current configuration, a pop-up dialog will be shown and the export will not be performed.
        unsigned int state = this->p->update_restart_background_process(false, false);
        if (state & priv::UPDATE_BACKGROUND_PROCESS_INVALID)
            return;
        default_output_file = this->p->background_process.output_filepath_for_project(into_path(get_project_filename(".3mf")));
    } catch (const Slic3r::PlaceholderParserError &ex) {
        // Show the error with monospaced font.
        show_error(this, ex.what(), true);
        return;
    } catch (const std::exception &ex) {
        show_error(this, ex.what(), false);
        return;
    }
    default_output_file = fs::path(Slic3r::fold_utf8_to_ascii(default_output_file.string()));
    AppConfig 				&appconfig 				 = *wxGetApp().app_config;
    //RemovableDriveManager 	&removable_drive_manager = *wxGetApp().removable_drive_manager();
    // Get a last save path, either to removable media or to an internal media.
    std::string      		 start_dir 				 = appconfig.get_last_output_dir(default_output_file.parent_path().string(), prefer_removable);
    /*if (prefer_removable) {
        // Returns a path to a removable media if it exists, prefering start_dir. Update the internal removable drives database.
        start_dir = removable_drive_manager.get_removable_drive_path(start_dir);
        if (start_dir.empty())
            // Direct user to the last internal media.
            start_dir = appconfig.get_last_output_dir(default_output_file.parent_path().string(), false);
    }*/

    fs::path output_path;
    {
        std::string ext = default_output_file.extension().string();
        wxFileDialog dlg(this, (printer_technology() == ptFFF) ? _L("Save G-code file as:") : _devL("Save SLA file as:"),
            start_dir,
            from_path(default_output_file.filename()),
            GUI::file_wildcards((printer_technology() == ptFFF) ? FT_GCODE : FT_SL1, ext),
            wxFD_SAVE | wxFD_OVERWRITE_PROMPT
        );
        if (dlg.ShowModal() == wxID_OK) {
            output_path = into_path(dlg.GetPath());
            while (has_illegal_filename_characters(output_path.filename().string())) {
                show_error(this, _devL("The provided file name is not valid.") + "\n" +
                    _devL("The following characters are not allowed by a FAT file system:") + " <>:/\\|?*\"");
                dlg.SetFilename(from_path(output_path.filename()));
                if (dlg.ShowModal() == wxID_OK)
                    output_path = into_path(dlg.GetPath());
                else {
                    output_path.clear();
                    break;
                }
            }
        }
    }

    if (! output_path.empty()) {
        //bool path_on_removable_media = removable_drive_manager.set_and_verify_last_save_path(output_path.string());
        bool path_on_removable_media = false;
        p->notification_manager->new_export_began(path_on_removable_media);
        p->exporting_status = path_on_removable_media ? ExportingStatus::EXPORTING_TO_REMOVABLE : ExportingStatus::EXPORTING_TO_LOCAL;
        p->last_output_path = output_path.string();
        p->last_output_dir_path = output_path.parent_path().string();
        p->export_gcode(output_path, path_on_removable_media);
        // Storing a path to AppConfig either as path to removable media or a path to internal media.
        // is_path_on_removable_drive() is called with the "true" parameter to update its internal database as the user may have shuffled the external drives
        // while the dialog was open.
        appconfig.update_last_output_dir(output_path.parent_path().string(), path_on_removable_media);
    }
}

//BBS export gcode 3mf to file
void Plater::export_gcode_3mf()
{
    if (p->model.objects.empty())
        return;

    if (p->process_completed_with_error)
        return;

    //calc default_output_file, get default output file from background process
    fs::path default_output_file;
    default_output_file = into_path(get_project_filename(".3mf"));
    if (default_output_file.empty())
        default_output_file = into_path(get_project_name() + ".3mf");

    //BBS replace gcode extension to .gcode.3mf
    default_output_file = default_output_file.replace_extension(".gcode.3mf");
    default_output_file = fs::path(Slic3r::fold_utf8_to_ascii(default_output_file.string()));
    AppConfig &appconfig = *wxGetApp().app_config;
    //Get a last save path
    std::string start_dir = appconfig.get_last_output_dir(default_output_file.parent_path().string(), false);
    fs::path output_path;
    {
        std::string ext = default_output_file.extension().string();
        wxFileDialog dlg(this, _L("Save Sliced file as:"),
            start_dir,
            from_path(default_output_file.filename()),
            GUI::file_wildcards(FT_3MF, ext),
            wxFD_SAVE | wxFD_OVERWRITE_PROMPT
        );
        if (dlg.ShowModal() == wxID_OK)
            output_path = into_path(dlg.GetPath());
    }

    if (!output_path.empty()) {
        //BBS do not set to removable media path
        bool path_on_removable_media = false;
        p->notification_manager->new_export_began(path_on_removable_media);
        p->exporting_status = path_on_removable_media ? ExportingStatus::EXPORTING_TO_REMOVABLE : ExportingStatus::EXPORTING_TO_LOCAL;
        //BBS do not save last output path
        //p->last_output_path = output_path.string();
        p->last_output_dir_path = output_path.parent_path().string();
        int curr_plate_idx = get_partplate_list().get_curr_plate_index();
        export_3mf(output_path, SaveStrategy::Silence | SaveStrategy::SplitModel | SaveStrategy::WithGcode | SaveStrategy::SkipModel, curr_plate_idx); // BBS: silence
        // update lost output dir
        appconfig.update_last_output_dir(output_path.parent_path().string(), false);
        p->notification_manager->push_exporting_finished_notification(output_path.string(), p->last_output_dir_path, false);
    }
}

void Plater::export_stl(bool extended, bool selection_only)
{
    if (p->model.objects.empty()) { return; }

    wxBusyCursor wait;

    const auto &selection = p->get_selection();

    // BBS support mulity objects
    // const auto obj_idx = selection.get_object_idx();
    // if (selection_only && (obj_idx == -1 || selection.is_wipe_tower()))
    //    return;

    if (selection_only && selection.is_wipe_tower())
        return;

    //BBS
    if (selection_only) {
        // only support selection single full object and mulitiple full object
        if (!selection.is_single_full_object() && !selection.is_multiple_full_object())
            return;
    }

    wxString path = p->get_export_file(FT_STL);
    if (path.empty()) { return; }
    const std::string path_u8 = into_u8(path);


    // Following lambda generates a combined mesh for export with normals pointing outwards.
    auto mesh_to_export = [](const ModelObject& mo, int instance_id) {
        TriangleMesh mesh;
        for (const ModelVolume* v : mo.volumes)
            if (v->is_model_part()) {
                TriangleMesh vol_mesh(v->mesh());
                vol_mesh.transform(v->get_matrix(), true);
                mesh.merge(vol_mesh);
            }
        if (instance_id == -1) {
            TriangleMesh vols_mesh(mesh);
            mesh = TriangleMesh();
            for (const ModelInstance* i : mo.instances) {
                TriangleMesh m = vols_mesh;
                m.transform(i->get_matrix(), true);
                mesh.merge(m);
            }
        }
        else if (0 <= instance_id && instance_id < int(mo.instances.size()))
            mesh.transform(mo.instances[instance_id]->get_matrix(), true);
        return mesh;
    };

    TriangleMesh mesh;
    if (p->printer_technology == ptFFF) {
        if (selection_only) {
            if (selection.is_single_full_object()) {
                const auto obj_idx = selection.get_object_idx();
                const ModelObject* model_object = p->model.objects[obj_idx];
                if (selection.get_mode() == Selection::Instance)
                {
                    mesh = std::move(mesh_to_export(*model_object, ( model_object->instances.size() > 1) ? -1 : selection.get_instance_idx()));
                }
                else
                {
                    const GLVolume* volume = selection.get_volume(*selection.get_volume_idxs().begin());
                    mesh = model_object->volumes[volume->volume_idx()]->mesh();
                    mesh.transform(volume->get_volume_transformation().get_matrix(), true);
                }

                if (model_object->instances.size() == 1)
                    mesh.translate(-model_object->origin_translation.cast<float>());
            }
            else if (selection.is_multiple_full_object()) {
                const std::set<std::pair<int, int>>& instances_idxs = p->get_selection().get_selected_object_instances();
                for (const std::pair<int, int>& i : instances_idxs)
                {
                    ModelObject* object = p->model.objects[i.first];
                    mesh.merge(mesh_to_export(*object, i.second));
                }
            }
        }
        else {
            for (const ModelObject *o : p->model.objects)
                mesh.merge(mesh_to_export(*o, -1));
        }
    }
    else
    {
        // This is SLA mode, all objects have only one volume.
        // However, we must have a look at the backend to load
        // hollowed mesh and/or supports
        const auto obj_idx = selection.get_object_idx();
        const PrintObjects& objects = p->sla_print.objects();
        for (const SLAPrintObject* object : objects)
        {
            const ModelObject* model_object = object->model_object();
            if (selection_only) {
                if (model_object->id() != p->model.objects[obj_idx]->id())
                    continue;
            }
            Transform3d mesh_trafo_inv = object->trafo().inverse();
            bool is_left_handed = object->is_left_handed();

            TriangleMesh pad_mesh;
            bool has_pad_mesh = extended && object->has_mesh(slaposPad);
            if (has_pad_mesh)
            {
                pad_mesh = object->get_mesh(slaposPad);
                pad_mesh.transform(mesh_trafo_inv);
            }

            TriangleMesh supports_mesh;
            bool has_supports_mesh = extended && object->has_mesh(slaposSupportTree);
            if (has_supports_mesh)
            {
                supports_mesh = object->get_mesh(slaposSupportTree);
                supports_mesh.transform(mesh_trafo_inv);
            }
            const std::vector<SLAPrintObject::Instance>& obj_instances = object->instances();
            for (const SLAPrintObject::Instance& obj_instance : obj_instances)
            {
                auto it = std::find_if(model_object->instances.begin(), model_object->instances.end(),
                    [&obj_instance](const ModelInstance *mi) { return mi->id() == obj_instance.instance_id; });
                assert(it != model_object->instances.end());

                if (it != model_object->instances.end())
                {
                    bool one_inst_only = selection_only && ! selection.is_single_full_object();

                    int instance_idx = it - model_object->instances.begin();
                    const Transform3d& inst_transform = one_inst_only
                            ? Transform3d::Identity()
                            : object->model_object()->instances[instance_idx]->get_transformation().get_matrix();

                    TriangleMesh inst_mesh;

                    if (has_pad_mesh)
                    {
                        TriangleMesh inst_pad_mesh = pad_mesh;
                        inst_pad_mesh.transform(inst_transform, is_left_handed);
                        inst_mesh.merge(inst_pad_mesh);
                    }

                    if (has_supports_mesh)
                    {
                        TriangleMesh inst_supports_mesh = supports_mesh;
                        inst_supports_mesh.transform(inst_transform, is_left_handed);
                        inst_mesh.merge(inst_supports_mesh);
                    }

                    TriangleMesh inst_object_mesh = object->get_mesh_to_slice();
                    inst_object_mesh.transform(mesh_trafo_inv);
                    inst_object_mesh.transform(inst_transform, is_left_handed);

                    inst_mesh.merge(inst_object_mesh);

                    // ensure that the instance lays on the bed
                    inst_mesh.translate(0.0f, 0.0f, -inst_mesh.bounding_box().min[2]);

                    // merge instance with global mesh
                    mesh.merge(inst_mesh);

                    if (one_inst_only)
                        break;
                }
            }
        }
    }

    Slic3r::store_stl(path_u8.c_str(), &mesh, true);
}

//BBS: remove amf export
/*void Plater::export_amf()
{
    if (p->model.objects.empty()) { return; }

    wxString path = p->get_export_file(FT_AMF);
    if (path.empty()) { return; }
    const std::string path_u8 = into_u8(path);

    wxBusyCursor wait;
    bool export_config = true;
    DynamicPrintConfig cfg = wxGetApp().preset_bundle->full_config_secure();
    bool full_pathnames = false;
    if (Slic3r::store_amf(path_u8.c_str(), &p->model, export_config ? &cfg : nullptr, full_pathnames)) {
        ; //store success
    } else {
        ; // store failed
    }
}*/

// BBS: backup
int Plater::export_3mf(const boost::filesystem::path& output_path, SaveStrategy strategy, int export_plate_idx, Export3mfProgressFn proFn)
{
    //if (p->model.objects.empty()) {
    //    MessageDialog dialog(nullptr, _L("No objects to export."), _L("Save project"), wxYES);
    //    if (dialog.ShowModal() == wxYES)
    //        return -1;
    //}

    if (output_path.empty())
        return -1;

    bool export_config = true;
    wxString path = from_path(output_path);

    if (!path.Lower().EndsWith(".3mf"))
        return -1;

    DynamicPrintConfig cfg = wxGetApp().preset_bundle->full_config_secure();
    const std::string path_u8 = into_u8(path);
    wxBusyCursor wait;

    BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(": path=%1%, backup=%2%, export_plate_idx=%3%, SaveStrategy=%4%")
        %output_path.string()%(strategy & SaveStrategy::Backup)%export_plate_idx %(unsigned int)strategy;

    //BBS: add plate logic for thumbnail generate
    std::vector<ThumbnailData*> thumbnails;
    std::vector<ThumbnailData*> calibration_thumbnails;
    std::vector<PlateBBoxData*> plate_bboxes;
    // BBS: backup
    if (!(strategy & SaveStrategy::Backup)) {
        for (int i = 0; i < p->partplate_list.get_plate_count(); i++) {
            ThumbnailData* thumbnail_data = &p->partplate_list.get_plate(i)->thumbnail_data;
            if (!p->partplate_list.get_plate(i)->thumbnail_data.is_valid()) {
                const ThumbnailsParams thumbnail_params = { {}, false, true, true, true, i };
                p->generate_thumbnail(p->partplate_list.get_plate(i)->thumbnail_data, THUMBNAIL_SIZE_3MF.first, THUMBNAIL_SIZE_3MF.second, thumbnail_params, Camera::EType::Ortho);
            }
            thumbnails.push_back(thumbnail_data);

            ThumbnailData* calibration_data = &p->partplate_list.get_plate(i)->cali_thumbnail_data;
            calibration_thumbnails.push_back(calibration_data);
            PlateBBoxData* plate_bbox_data = &p->partplate_list.get_plate(i)->cali_bboxes_data;
            plate_bboxes.push_back(plate_bbox_data);
        }

        if (p->partplate_list.get_curr_plate()->is_slice_result_valid()) {
            //BBS generate BBS calibration thumbnails
            int index = p->partplate_list.get_curr_plate_index();
            ThumbnailData* calibration_data = calibration_thumbnails[index];
            const ThumbnailsParams calibration_params = { {}, false, true, true, true, p->partplate_list.get_curr_plate_index() };
            //BBS fixed size
            const int thumbnail_width = 2560;
            const int thumbnail_height = 2560;
            p->generate_calibration_thumbnail(*calibration_data, thumbnail_width, thumbnail_height, calibration_params);
            if (using_exported_file()) {
                //do nothing
            }
            else
                *plate_bboxes[index] = p->generate_first_layer_bbox();
        }
    }

    //BBS: add bbs 3mf logic
    PlateDataPtrs plate_data_list;
    p->partplate_list.store_to_3mf_structure(plate_data_list, (strategy & SaveStrategy::WithGcode || strategy & SaveStrategy::WithSliceInfo), export_plate_idx);

    // BBS: backup
    PresetBundle& preset_bundle = *wxGetApp().preset_bundle;
    std::vector<Preset*> project_presets = preset_bundle.get_current_project_embedded_presets();

    StoreParams store_params;
    store_params.path  = path_u8.c_str();
    store_params.model = &p->model;
    store_params.plate_data_list = plate_data_list;
    store_params.export_plate_idx = export_plate_idx;
    store_params.project_presets = project_presets;
    store_params.config = export_config ? &cfg : nullptr;
    store_params.thumbnail_data = thumbnails;
    store_params.calibration_thumbnail_data = calibration_thumbnails;
    store_params.proFn = proFn;
    store_params.id_bboxes = plate_bboxes;//BBS
    store_params.project = &p->project;
    store_params.strategy = strategy | SaveStrategy::Zip64;


    // get type and color for platedata
    auto* filament_color = dynamic_cast<const ConfigOptionStrings*>(cfg.option("filament_colour"));

    for (int i = 0; i < plate_data_list.size(); i++) {
        PlateData *plate_data = plate_data_list[i];
        for (auto it = plate_data->slice_filaments_info.begin(); it != plate_data->slice_filaments_info.end(); it++) {
            it->type  = cfg.get_filament_type(it->id);
            it->color = filament_color ? filament_color->get_at(it->id) : "#FFFFFF";
            // save filament info used in curr plate
            int index = p->partplate_list.get_curr_plate_index();
            if (store_params.id_bboxes.size() > index) {
                store_params.id_bboxes[index]->filament_ids.push_back(it->id);
                store_params.id_bboxes[index]->filament_colors.push_back(it->color);
            }
        }
    }

    // handle Design Info
    bool has_design_info = false;
    ModelDesignInfo designInfo;
    if (p->model.design_info != nullptr) {
        if (!p->model.design_info->Designer.empty()) {
            BOOST_LOG_TRIVIAL(trace) << "design_info, found designer = " << p->model.design_info->Designer;
            has_design_info = true;
        }
    }
    if (!has_design_info) {
        // add Designed Info
        if (p->model.design_info == nullptr) {
            // set designInfo before export and reset after export
            if (wxGetApp().is_user_login()) {
                p->model.design_info                 = std::make_shared<ModelDesignInfo>();
                //p->model.design_info->Designer       = wxGetApp().getAgent()->get_user_nickanme();
                p->model.design_info->Designer       = "";
                p->model.design_info->DesignerUserId = wxGetApp().getAgent()->get_user_id();
                BOOST_LOG_TRIVIAL(trace) << "design_info prepare, designer = "<< "";
                BOOST_LOG_TRIVIAL(trace) << "design_info prepare, designer_user_id = " << p->model.design_info->DesignerUserId;
            }
        }
    }

    bool store_result = Slic3r::store_bbs_3mf(store_params);
    // reset designed info
    if (!has_design_info)
        p->model.design_info = nullptr;

    if (store_result) {
        if (!(store_params.strategy & SaveStrategy::Silence)) {
            // Success
            p->set_project_filename(path);
        }
    }
    else {
        return -1;
    }

    if (project_presets.size() > 0)
    {
        for (unsigned int i = 0; i < project_presets.size(); i++)
        {
            delete project_presets[i];
        }
        project_presets.clear();
    }

    release_PlateData_list(plate_data_list);

    for (unsigned int i = 0; i < calibration_thumbnails.size(); i++)
    {
        //release the data here, as it will always be generated when export
        calibration_thumbnails[i]->reset();
    }

    return 0;
}

void Plater::publish_project()
{
    return;
}


void Plater::reload_from_disk()
{
    p->reload_from_disk();
}

void Plater::replace_with_stl()
{
    p->replace_with_stl();
}

void Plater::reload_all_from_disk()
{
    p->reload_all_from_disk();
}

bool Plater::has_toolpaths_to_export() const
{
    return  p->preview->get_canvas3d()->has_toolpaths_to_export();
}

void Plater::export_toolpaths_to_obj() const
{
    if ((printer_technology() != ptFFF) || !is_preview_loaded())
        return;

    wxString path = p->get_export_file(FT_OBJ);
    if (path.empty())
        return;

    wxBusyCursor wait;
    p->preview->get_canvas3d()->export_toolpaths_to_obj(into_u8(path).c_str());
}

//BBS: add multiple plate reslice logic
void Plater::reslice()
{
    BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(", Line %1%: enter, process_completed_with_error=%2%")%__LINE__ %p->process_completed_with_error;
    // There is "invalid data" button instead "slice now"
    if (p->process_completed_with_error)
    {
        BOOST_LOG_TRIVIAL(warning) << __FUNCTION__ << boost::format(": process_completed_with_error, return directly");
        return;
    }

    // In case SLA gizmo is in editing mode, refuse to continue
    // and notify user that he should leave it first.
    if (get_view3D_canvas3D()->get_gizmos_manager().is_in_editing_mode(true))
        return;

    // Stop arrange and (or) optimize rotation tasks.
    this->stop_jobs();

    if (printer_technology() == ptSLA) {
        for (auto& object : model().objects)
            if (object->sla_points_status == sla::PointsStatus::NoPoints)
                object->sla_points_status = sla::PointsStatus::Generating;
    }

    //FIXME Don't reslice if export of G-code or sending to OctoPrint is running.
    // bitmask of UpdateBackgroundProcessReturnState
    unsigned int state = this->p->update_background_process(true);
    if (state & priv::UPDATE_BACKGROUND_PROCESS_REFRESH_SCENE)
        this->p->view3D->reload_scene(false);
    // If the SLA processing of just a single object's supports is running, restart slicing for the whole object.
    this->p->background_process.set_task(PrintBase::TaskParams());
    // Only restarts if the state is valid.
    //BBS: jusdge the result
    bool result = this->p->restart_background_process(state | priv::UPDATE_BACKGROUND_PROCESS_FORCE_RESTART);
    BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(", Line %1%: restart background,state=%2%, result=%3%")%__LINE__%state %result;
    if ((!result) && p->m_slice_all && (p->m_cur_slice_plate < (p->partplate_list.get_plate_count() - 1)))
    {
        //slice next
        BOOST_LOG_TRIVIAL(warning) << __FUNCTION__ << boost::format(": in slicing all, current plate %1% already sliced, skip to next") % p->m_cur_slice_plate ;
        SlicingProcessCompletedEvent evt(EVT_PROCESS_COMPLETED, 0,
            SlicingProcessCompletedEvent::Finished, nullptr);
        // Post the "complete" callback message, so that it will slice the next plate soon
        wxQueueEvent(this, evt.Clone());
        p->m_is_slicing = true;
        this->SetDropTarget(nullptr);
        if (p->m_cur_slice_plate == 0)
            reset_gcode_toolpaths();
        return;
    }

    if (result) {
        p->m_is_slicing = true;
        this->SetDropTarget(nullptr);
    }

    if ((state & priv::UPDATE_BACKGROUND_PROCESS_INVALID) != 0)
    {
        //BBS: add logs
        BOOST_LOG_TRIVIAL(warning) << __FUNCTION__ << boost::format(": state %1% is UPDATE_BACKGROUND_PROCESS_INVALID, can not slice") % state ;
        return;
    }

    bool clean_gcode_toolpaths = true;
    // BBS
    if (p->background_process.running())
    {
        p->ready_to_slice = false;
        p->main_frame->update_slice_print_status(MainFrame::eEventSliceUpdate, false);
        BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(": background process is running, m_is_slicing is true");
    }
    else if (!p->background_process.empty() && !p->background_process.idle()) {
        //p->show_action_buttons(true);
        p->ready_to_slice = true;
        p->main_frame->update_slice_print_status(MainFrame::eEventSliceUpdate, true);
        BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(": background process changes to not_idle, set ready_to_slice back to true");
    }
    else {
        //BBS: add reset logic for empty plate
        PartPlate * current_plate = p->background_process.get_current_plate();

        if (!current_plate->has_printable_instances()) {
            clean_gcode_toolpaths = true;
            current_plate->update_slice_result_valid_state(false);
        }
        else {
            clean_gcode_toolpaths = false;
            current_plate->update_slice_result_valid_state(true);
        }
        p->main_frame->update_slice_print_status(MainFrame::eEventSliceUpdate, false);
        BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(": background process in idle state, use previous result, clean_gcode_toolpaths=%1%")%clean_gcode_toolpaths;
    }

    if (clean_gcode_toolpaths)
        reset_gcode_toolpaths();

    p->preview->reload_print(!clean_gcode_toolpaths);

    BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(": finished, started slicing for plate %1%") % p->partplate_list.get_curr_plate_index();
}

//BBS: add project slicing related logic
void Plater::start_next_slice()
{
    // Stop arrange and (or) optimize rotation tasks.
    //this->stop_jobs();

    //FIXME Don't reslice if export of G-code or sending to OctoPrint is running.
    // bitmask of UpdateBackgroundProcessReturnState
    unsigned int state = this->p->update_background_process(true, false, false);
    if (state & priv::UPDATE_BACKGROUND_PROCESS_REFRESH_SCENE)
        this->p->view3D->reload_scene(false);

    BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(": update_background_process returns %1%")%state;
    // Only restarts if the state is valid.
    bool result = this->p->restart_background_process(state | priv::UPDATE_BACKGROUND_PROCESS_FORCE_RESTART);
    if (!result)
    {
        //slice next
        SlicingProcessCompletedEvent evt(EVT_PROCESS_COMPLETED, 0,
                SlicingProcessCompletedEvent::Finished, nullptr);
        // Post the "complete" callback message, so that it will slice the next plate soon
        wxQueueEvent(this, evt.Clone());
    }
    BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(": restart_background_process returns %1%")%result;
}


void Plater::reslice_SLA_supports(const ModelObject &object, bool postpone_error_messages)
{
    reslice_SLA_until_step(slaposPad, object, postpone_error_messages);
}

void Plater::reslice_SLA_hollowing(const ModelObject &object, bool postpone_error_messages)
{
    reslice_SLA_until_step(slaposDrillHoles, object, postpone_error_messages);
}

void Plater::reslice_SLA_until_step(SLAPrintObjectStep step, const ModelObject &object, bool postpone_error_messages)
{
    //FIXME Don't reslice if export of G-code or sending to OctoPrint is running.
    // bitmask of UpdateBackgroundProcessReturnState
    unsigned int state = this->p->update_background_process(true, postpone_error_messages);
    if (state & priv::UPDATE_BACKGROUND_PROCESS_REFRESH_SCENE)
        this->p->view3D->reload_scene(false);

    if (this->p->background_process.empty() || (state & priv::UPDATE_BACKGROUND_PROCESS_INVALID))
        // Nothing to do on empty input or invalid configuration.
        return;

    // Limit calculation to the single object only.
    PrintBase::TaskParams task;
    task.single_model_object = object.id();
    // If the background processing is not enabled, calculate supports just for the single instance.
    // Otherwise calculate everything, but start with the provided object.
    if (!this->p->background_processing_enabled()) {
        task.single_model_instance_only = true;
        task.to_object_step = step;
    }
    this->p->background_process.set_task(task);
    // and let the background processing start.
    this->p->restart_background_process(state | priv::UPDATE_BACKGROUND_PROCESS_FORCE_RESTART);
}

int Plater::send_gcode(int plate_idx, Export3mfProgressFn proFn)
{
    int result = 0;
    /* generate 3mf */
    if (plate_idx == PLATE_CURRENT_IDX) {
        p->m_print_job_data.plate_idx = get_partplate_list().get_curr_plate_index();
    }
    else {
        p->m_print_job_data.plate_idx = plate_idx;
    }

    PartPlate* plate = get_partplate_list().get_curr_plate();
    try {
        p->m_print_job_data._3mf_path = fs::path(plate->get_tmp_gcode_path());
        p->m_print_job_data._3mf_path.replace_extension("3mf");
    }
    catch (std::exception& e) {
        BOOST_LOG_TRIVIAL(error) << "generate 3mf path failed";
        return -1;
    }

    SaveStrategy strategy = SaveStrategy::Silence | SaveStrategy::SkipModel | SaveStrategy::WithGcode;
#if !BBL_RELEASE_TO_PUBLIC
    //only save model in QA environment
    std::string sel = get_app_config()->get("iot_environment");
    if (sel == ENV_PRE_HOST)
        strategy = SaveStrategy::Silence | SaveStrategy::SplitModel | SaveStrategy::WithGcode;
#endif

    result = export_3mf(p->m_print_job_data._3mf_path, strategy, plate_idx, proFn);

    return result;
}

int Plater::export_config_3mf(int plate_idx, Export3mfProgressFn proFn)
{
    int result = 0;
    /* generate 3mf */
    if (plate_idx == PLATE_CURRENT_IDX) {
        p->m_print_job_data.plate_idx = get_partplate_list().get_curr_plate_index();
    }
    else {
        p->m_print_job_data.plate_idx = plate_idx;
    }

    PartPlate* plate = get_partplate_list().get_curr_plate();
    try {
        p->m_print_job_data._3mf_config_path = fs::path(plate->get_temp_config_3mf_path());
    }
    catch (std::exception& e) {
        BOOST_LOG_TRIVIAL(error) << "generate 3mf path failed";
        return -1;
    }

    SaveStrategy strategy = SaveStrategy::Silence | SaveStrategy::SkipModel | SaveStrategy::WithSliceInfo;
    result = export_3mf(p->m_print_job_data._3mf_config_path, strategy, plate_idx, proFn);

    return result;
}

//BBS
void Plater::print_job_finished(wxCommandEvent &evt)
{
    Slic3r::DeviceManager* dev = Slic3r::GUI::wxGetApp().getDeviceManager();
    if (!dev) return;
    dev->set_selected_machine(evt.GetString().ToStdString());

    p->hide_select_machine_dlg();
    p->main_frame->request_select_tab(MainFrame::TabPosition::tpMonitor);
}

// Called when the Eject button is pressed.
/*void Plater::eject_drive()
{
    wxBusyCursor wait;
    wxGetApp().removable_drive_manager()->eject_drive();
}*/

void Plater::take_snapshot(const std::string &snapshot_name) { p->take_snapshot(snapshot_name); }
//void Plater::take_snapshot(const wxString &snapshot_name) { p->take_snapshot(snapshot_name); }
void Plater::take_snapshot(const std::string &snapshot_name, UndoRedo::SnapshotType snapshot_type) { p->take_snapshot(snapshot_name, snapshot_type); }
//void Plater::take_snapshot(const wxString &snapshot_name, UndoRedo::SnapshotType snapshot_type) { p->take_snapshot(snapshot_name, snapshot_type); }
void Plater::suppress_snapshots() { p->suppress_snapshots(); }
void Plater::allow_snapshots() { p->allow_snapshots(); }
// BBS: single snapshot
void Plater::single_snapshots_enter(SingleSnapshot *single)
{
    p->single_snapshots_enter(single);
}
void Plater::single_snapshots_leave(SingleSnapshot *single)
{
    p->single_snapshots_leave(single);
}
void Plater::undo() { p->undo(); }
void Plater::redo() { p->redo(); }
void Plater::undo_to(int selection)
{
    if (selection == 0) {
        p->undo();
        return;
    }

    const int idx = p->get_active_snapshot_index() - selection - 1;
    p->undo_redo_to(p->undo_redo_stack().snapshots()[idx].timestamp);
}
void Plater::redo_to(int selection)
{
    if (selection == 0) {
        p->redo();
        return;
    }

    const int idx = p->get_active_snapshot_index() + selection + 1;
    p->undo_redo_to(p->undo_redo_stack().snapshots()[idx].timestamp);
}
bool Plater::undo_redo_string_getter(const bool is_undo, int idx, const char** out_text)
{
    const std::vector<UndoRedo::Snapshot>& ss_stack = p->undo_redo_stack().snapshots();
    const int idx_in_ss_stack = p->get_active_snapshot_index() + (is_undo ? -(++idx) : idx);

    if (0 < idx_in_ss_stack && (size_t)idx_in_ss_stack < ss_stack.size() - 1) {
        *out_text = ss_stack[idx_in_ss_stack].name.c_str();
        return true;
    }

    return false;
}

void Plater::undo_redo_topmost_string_getter(const bool is_undo, std::string& out_text)
{
    const std::vector<UndoRedo::Snapshot>& ss_stack = p->undo_redo_stack().snapshots();
    const int idx_in_ss_stack = p->get_active_snapshot_index() + (is_undo ? -1 : 0);

    if (0 < idx_in_ss_stack && (size_t)idx_in_ss_stack < ss_stack.size() - 1) {
        out_text = ss_stack[idx_in_ss_stack].name;
        return;
    }

    out_text = "";
}

bool Plater::search_string_getter(int idx, const char** label, const char** tooltip)
{
    const Search::OptionsSearcher& search_list = p->sidebar->get_searcher();

    if (0 <= idx && (size_t)idx < search_list.size()) {
        search_list[idx].get_marked_label_and_tooltip(label, tooltip);
        return true;
    }

    return false;
}

// BBS.
void Plater::on_filaments_change(size_t num_filaments)
{
    // only update elements in plater
    update_filament_colors_in_full_config();
    sidebar().on_filaments_change(num_filaments);
    sidebar().obj_list()->update_objects_list_filament_column(num_filaments);

    for (ModelObject* mo : wxGetApp().model().objects) {
        for (ModelVolume* mv : mo->volumes) {
            mv->update_extruder_count(num_filaments);
        }
    }
}

void Plater::on_bed_type_change(BedType bed_type)
{
    sidebar().on_bed_type_change(bed_type);
}

bool Plater::update_filament_colors_in_full_config()
{
    DynamicPrintConfig& project_config = wxGetApp().preset_bundle->project_config;
    ConfigOptionStrings* color_opt = project_config.option<ConfigOptionStrings>("filament_colour");

    p->config->option<ConfigOptionStrings>("filament_colour")->values = color_opt->values;
    return true;
}

void Plater::on_config_change(const DynamicPrintConfig &config)
{
    bool update_scheduled = false;
    bool bed_shape_changed = false;
    t_config_option_keys diff_keys = p->config->diff(config);
    for (auto opt_key : diff_keys) {
        if (opt_key == "filament_colour") {
            update_scheduled = true; // update should be scheduled (for update 3DScene) #2738

            if (update_filament_colors_in_full_config()) {
                p->sidebar->obj_list()->update_filament_colors();
                continue;
            }
        }
        if (opt_key == "material_colour") {
            update_scheduled = true; // update should be scheduled (for update 3DScene)
        }

        p->config->set_key_value(opt_key, config.option(opt_key)->clone());
        if (opt_key == "printer_technology") {
            this->set_printer_technology(config.opt_enum<PrinterTechnology>(opt_key));
            // print technology is changed, so we should to update a search list
            p->sidebar->update_searcher();
            p->reset_gcode_toolpaths();
            p->view3D->get_canvas3d()->reset_sequential_print_clearance();
            //BBS: invalid all the slice results
            p->partplate_list.invalid_all_slice_result();
        }
        //BBS: add bed_exclude_area
        else if (opt_key == "printable_area" || opt_key == "bed_exclude_area"
            || opt_key == "extruder_clearance_height_to_lid"
            || opt_key == "extruder_clearance_height_to_rod") {
            bed_shape_changed = true;
            update_scheduled = true;
        }
        else if (boost::starts_with(opt_key, "enable_prime_tower") ||
            boost::starts_with(opt_key, "prime_tower") ||
            boost::starts_with(opt_key, "wipe_tower") ||
            // opt_key == "filament_minimal_purge_on_wipe_tower" // ? #ys_FIXME
            opt_key == "single_extruder_multi_material" ||
            // BBS
            opt_key == "prime_volume") {
            update_scheduled = true;
        }
        else if(opt_key == "extruder_colour") {
            update_scheduled = true;
            //p->sidebar->obj_list()->update_extruder_colors();
        }
        else if (opt_key == "printable_height") {
            bed_shape_changed = true;
            update_scheduled = true;
        }
        else if (opt_key == "print_sequence") {
            update_scheduled = true;
        }
        else if (opt_key == "printer_model") {
            p->reset_gcode_toolpaths();
            // update to force bed selection(for texturing)
            bed_shape_changed = true;
            update_scheduled = true;
        }
        // BBS
        else if (opt_key == "support_interface_filament" ||
            opt_key == "support_filament") {
            update_scheduled = true;
        }
    }

    if (bed_shape_changed)
        set_bed_shape();

    GLCanvas3D* view3d_canvas = get_view3D_canvas3D();
    auto seq_print  = config.option<ConfigOptionEnum<PrintSequence>>("print_sequence");
    if ( seq_print && view3d_canvas && view3d_canvas->is_rendering_enabled() ) {
        NotificationManager *notify_manager = get_notification_manager();
        if (seq_print->value == PrintSequence::ByObject) {
            std::string info_text = L("Print By Object: \nSuggest to use auto-arrange to avoid collisions when printing.");
            notify_manager->bbl_show_seqprintinfo_notification(info_text);
        }
        else
            notify_manager->bbl_close_seqprintinfo_notification();
    }

    if (update_scheduled)
        update();

    if (p->main_frame->is_loaded())
        this->p->schedule_background_process();
}

void Plater::set_bed_shape() const
{
    std::string texture_filename;
    auto bundle = wxGetApp().preset_bundle;
    if (bundle != nullptr) {
        const Preset* curr = &bundle->printers.get_selected_preset();
        if (curr->is_system)
            texture_filename = PresetUtils::system_printer_bed_texture(*curr);
        else {
            auto *printer_model = curr->config.opt<ConfigOptionString>("printer_model");
            if (printer_model != nullptr && ! printer_model->value.empty()) {
                texture_filename = bundle->get_texture_for_printer_model(printer_model->value);
            }
        }
    }
    set_bed_shape(p->config->option<ConfigOptionPoints>("printable_area")->values,
        //BBS: add bed exclude areas
        p->config->option<ConfigOptionPoints>("bed_exclude_area")->values,
        p->config->option<ConfigOptionFloat>("printable_height")->value,
        texture_filename, {});
}

//BBS: add bed exclude area
void Plater::set_bed_shape(const Pointfs& shape, const Pointfs& exclude_area, const double printable_height, const std::string& custom_texture, const std::string& custom_model, bool force_as_custom) const
{
    p->set_bed_shape(shape, exclude_area, printable_height, custom_texture, custom_model, force_as_custom);
}

void Plater::force_filament_colors_update()
{
//BBS: filament_color logic has been moved out of filament setting
#if 0
    bool update_scheduled = false;
    DynamicPrintConfig* config = p->config;
    const std::vector<std::string> filament_presets = wxGetApp().preset_bundle->filament_presets;
    if (filament_presets.size() > 1 &&
        p->config->option<ConfigOptionStrings>("filament_colour")->values.size() == filament_presets.size())
    {
        const PresetCollection& filaments = wxGetApp().preset_bundle->filaments;
        std::vector<std::string> filament_colors;
        filament_colors.reserve(filament_presets.size());

        for (const std::string& filament_preset : filament_presets)
            filament_colors.push_back(filaments.find_preset(filament_preset, true)->config.opt_string("filament_colour", (unsigned)0));

        if (config->option<ConfigOptionStrings>("filament_colour")->values != filament_colors) {
            config->option<ConfigOptionStrings>("filament_colour")->values = filament_colors;
            update_scheduled = true;
        }
    }

    if (update_scheduled) {
        update();
        p->sidebar->obj_list()->update_filament_colors();
    }

    if (p->main_frame->is_loaded())
        this->p->schedule_background_process();
#endif
}

void Plater::force_print_bed_update()
{
    // Fill in the printer model key with something which cannot possibly be valid, so that Plater::on_config_change() will update the print bed
    // once a new Printer profile config is loaded.
    p->config->opt_string("printer_model", true) = "bbl_empty";
}

void Plater::on_activate()
{
    this->p->show_delayed_error_message();
}

// Get vector of extruder colors considering filament color, if extruder color is undefined.
std::vector<std::string> Plater::get_extruder_colors_from_plater_config(const GCodeProcessorResult* const result) const
{
    if (wxGetApp().is_gcode_viewer() && result != nullptr)
        return result->extruder_colors;
    else {
        const Slic3r::DynamicPrintConfig* config = &wxGetApp().preset_bundle->project_config;
        std::vector<std::string> filament_colors;
        if (!config->has("filament_colour")) // in case of a SLA print
            return filament_colors;

        filament_colors = (config->option<ConfigOptionStrings>("filament_colour"))->values;
        return filament_colors;
    }
}

/* Get vector of colors used for rendering of a Preview scene in "Color print" mode
 * It consists of extruder colors and colors, saved in model.custom_gcode_per_print_z
 */
std::vector<std::string> Plater::get_colors_for_color_print(const GCodeProcessorResult* const result) const
{
    std::vector<std::string> colors = get_extruder_colors_from_plater_config(result);
    colors.reserve(colors.size() + p->model.custom_gcode_per_print_z.gcodes.size());

    if (wxGetApp().is_gcode_viewer() && result != nullptr) {
        for (const CustomGCode::Item& code : result->custom_gcode_per_print_z) {
            if (code.type == CustomGCode::ColorChange)
                colors.emplace_back(code.color);
        }
    }
    else {
        for (const CustomGCode::Item& code : p->model.custom_gcode_per_print_z.gcodes) {
            if (code.type == CustomGCode::ColorChange)
                colors.emplace_back(code.color);
        }
    }

    return colors;
}

wxString Plater::get_project_filename(const wxString& extension) const
{
    return p->get_project_filename(extension);
}

void Plater::set_project_filename(const wxString& filename)
{
    p->set_project_filename(filename);
}

bool Plater::is_export_gcode_scheduled() const
{
    return p->background_process.is_export_scheduled();
}

const Selection &Plater::get_selection() const
{
    return p->get_selection();
}

int Plater::get_selected_object_idx()
{
    return p->get_selected_object_idx();
}

bool Plater::is_single_full_object_selection() const
{
    return p->get_selection().is_single_full_object();
}

GLCanvas3D* Plater::canvas3D()
{
    // BBS modify view3D->get_canvas3d() to current canvas
    return p->get_current_canvas3D();
}

const GLCanvas3D* Plater::canvas3D() const
{
    // BBS modify view3D->get_canvas3d() to current canvas
    return p->get_current_canvas3D();
}

GLCanvas3D* Plater::get_view3D_canvas3D()
{
    return p->view3D->get_canvas3d();
}

GLCanvas3D* Plater::get_preview_canvas3D()
{
    return p->preview->get_canvas3d();
}

GLCanvas3D* Plater::get_assmeble_canvas3D()
{
    if (p->assemble_view)
        return p->assemble_view->get_canvas3d();
    return nullptr;
}

GLCanvas3D* Plater::get_current_canvas3D()
{
    return p->get_current_canvas3D();
}

void Plater::arrange()
{
    if (!p->m_ui_jobs.is_any_running()) {
        p->m_ui_jobs.arrange();
    }
}

void Plater::set_current_canvas_as_dirty()
{
    p->set_current_canvas_as_dirty();
}

void Plater::unbind_canvas_event_handlers()
{
    p->unbind_canvas_event_handlers();
}

void Plater::reset_canvas_volumes()
{
    p->reset_canvas_volumes();
}

PrinterTechnology Plater::printer_technology() const
{
    return p->printer_technology;
}

const DynamicPrintConfig * Plater::config() const { return p->config; }

bool Plater::set_printer_technology(PrinterTechnology printer_technology)
{
    p->printer_technology = printer_technology;
    bool ret = p->background_process.select_technology(printer_technology);
    if (ret) {
        // Update the active presets.
    }
    //FIXME for SLA synchronize
    //p->background_process.apply(Model)!

    if (printer_technology == ptSLA) {
        for (ModelObject* model_object : p->model.objects) {
            model_object->ensure_on_bed();
        }
    }

    p->label_btn_export = printer_technology == ptFFF ? L("Export G-code") : L("Export");
    p->label_btn_send   = printer_technology == ptFFF ? L("Send G-code")   : L("Send to printer");

    if (wxGetApp().mainframe != nullptr)
        wxGetApp().mainframe->update_menubar();

    p->sidebar->get_searcher().set_printer_technology(printer_technology);

    p->notification_manager->set_fff(printer_technology == ptFFF);
    p->notification_manager->set_slicing_progress_hidden();

    return ret;
}

void Plater::clear_before_change_mesh(int obj_idx)
{
    ModelObject* mo = model().objects[obj_idx];

    // If there are custom supports/seams/mmu segmentation, remove them. Fixed mesh
    // may be different and they would make no sense.
    bool paint_removed = false;
    for (ModelVolume* mv : mo->volumes) {
        paint_removed |= ! mv->supported_facets.empty() || ! mv->seam_facets.empty() || ! mv->mmu_segmentation_facets.empty();
        mv->supported_facets.reset();
        mv->seam_facets.reset();
        mv->mmu_segmentation_facets.reset();
    }
    if (paint_removed) {
        // snapshot_time is captured by copy so the lambda knows where to undo/redo to.
        get_notification_manager()->push_notification(
                    NotificationType::CustomSupportsAndSeamRemovedAfterRepair,
                    NotificationManager::NotificationLevel::PrintInfoNotificationLevel,
                    _u8L("Custom supports and color painting were removed before repairing."));
    }
}

void Plater::changed_mesh(int obj_idx)
{
    ModelObject* mo = model().objects[obj_idx];
    sla::reproject_points_and_holes(mo);
    update();
    p->object_list_changed();
    p->schedule_background_process();
}

void Plater::changed_object(int obj_idx)
{
    if (obj_idx < 0)
        return;
    // recenter and re - align to Z = 0
    p->model.objects[obj_idx]->ensure_on_bed(p->printer_technology != ptSLA);
    if (this->p->printer_technology == ptSLA) {
        // Update the SLAPrint from the current Model, so that the reload_scene()
        // pulls the correct data, update the 3D scene.
        this->p->update_restart_background_process(true, false);
    }
    else
        p->view3D->reload_scene(false);

    // update print
    this->p->schedule_background_process();
}

void Plater::changed_objects(const std::vector<size_t>& object_idxs)
{
    if (object_idxs.empty())
        return;

    for (size_t obj_idx : object_idxs) {
        if (obj_idx < p->model.objects.size()) {
            if (p->model.objects[obj_idx]->bounding_box().min.z() >= SINKING_Z_THRESHOLD)
                // re - align to Z = 0
                p->model.objects[obj_idx]->ensure_on_bed();
        }
    }
    if (this->p->printer_technology == ptSLA) {
        // Update the SLAPrint from the current Model, so that the reload_scene()
        // pulls the correct data, update the 3D scene.
        this->p->update_restart_background_process(true, false);
    }
    else {
        p->view3D->reload_scene(false);
        p->view3D->get_canvas3d()->update_instance_printable_state_for_objects(object_idxs);
    }

    // update print
    this->p->schedule_background_process();
}

void Plater::schedule_background_process(bool schedule/* = true*/)
{
    if (schedule)
        this->p->schedule_background_process();

    this->p->suppressed_backround_processing_update = false;
}

bool Plater::is_background_process_update_scheduled() const
{
    return this->p->background_process_timer.IsRunning();
}

void Plater::suppress_background_process(const bool stop_background_process)
{
    if (stop_background_process)
        this->p->background_process_timer.Stop();

    this->p->suppressed_backround_processing_update = true;
}

void Plater::mirror(Axis axis)      { p->mirror(axis); }
void Plater::split_object()         { p->split_object(); }
void Plater::split_volume()         { p->split_volume(); }
void Plater::optimize_rotation()    { if (!p->m_ui_jobs.is_any_running()) p->m_ui_jobs.optimize_rotation(); }
void Plater::update_menus()         { p->menus.update(); }
// BBS
//void Plater::show_action_buttons(const bool ready_to_slice) const   { p->show_action_buttons(ready_to_slice); }

void Plater::fill_color(int extruder_id)
{
    if (can_fillcolor()) {
        p->assemble_view->get_canvas3d()->get_selection().fill_color(extruder_id);
    }
}

//BBS
void Plater::cut_selection_to_clipboard()
{
    Plater::TakeSnapshot snapshot(this, "Cut Selected Objects");
    if (can_cut_to_clipboard() && !p->sidebar->obj_list()->cut_to_clipboard()) {
        p->view3D->get_canvas3d()->get_selection().cut_to_clipboard();
    }
}

void Plater::copy_selection_to_clipboard()
{
    // At first try to copy selected values to the ObjectList's clipboard
    // to check if Settings or Layers are selected in the list
    // and then copy to 3DCanvas's clipboard if not
    if (can_copy_to_clipboard() && !p->sidebar->obj_list()->copy_to_clipboard())
        p->view3D->get_canvas3d()->get_selection().copy_to_clipboard();
}

void Plater::paste_from_clipboard()
{
    if (!can_paste_from_clipboard())
        return;

    Plater::TakeSnapshot snapshot(this, "Paste From Clipboard");

    // At first try to paste values from the ObjectList's clipboard
    // to check if Settings or Layers were copied
    // and then paste from the 3DCanvas's clipboard if not
    if (!p->sidebar->obj_list()->paste_from_clipboard())
        p->view3D->get_canvas3d()->get_selection().paste_from_clipboard();
}

//BBS: add clone
void Plater::clone_selection()
{
    if (is_selection_empty())
        return;
    long res = wxGetNumberFromUser("",
        _L("Clone"),
        _L("Number of copies:"),
        1, 0, 100, this);
    wxString msg;
    if (res == -1) {
        msg = _L("Invalid number");
        return;
    }
    Selection& selection = p->get_selection();
    selection.clone(res);
}

void Plater::search(bool plater_is_active, Preset::Type type, wxWindow *tag, wxTextCtrl *etag, wxWindow *stag)
{
    if (plater_is_active) {
        if (is_preview_shown())
            return;
        // plater should be focused for correct navigation inside search window
        this->SetFocus();

        wxKeyEvent evt;
#ifdef __APPLE__
        evt.m_keyCode = 'f';
#else /* __APPLE__ */
        evt.m_keyCode = WXK_CONTROL_F;
#endif /* __APPLE__ */
        evt.SetControlDown(true);
        canvas3D()->on_char(evt);
    }
    else
        p->sidebar->get_searcher().show_dialog(type, tag, etag, stag);
}

void Plater::msw_rescale()
{
    p->preview->msw_rescale();

    p->view3D->get_canvas3d()->msw_rescale();

    p->sidebar->msw_rescale();

    p->menus.msw_rescale();

    Layout();
    GetParent()->Layout();
}

void Plater::sys_color_changed()
{
    p->preview->sys_color_changed();
    p->sidebar->sys_color_changed();

    p->menus.sys_color_changed();

    Layout();
    GetParent()->Layout();
}

// BBS
#if 0
bool Plater::init_view_toolbar()
{
    return p->init_view_toolbar();
}

void Plater::enable_view_toolbar(bool enable)
{
    p->view_toolbar.set_enabled(enable);
}
#endif

bool Plater::init_collapse_toolbar()
{
    return p->init_collapse_toolbar();
}

void Plater::enable_collapse_toolbar(bool enable)
{
    p->collapse_toolbar.set_enabled(enable);
}

const Camera& Plater::get_camera() const
{
    return p->camera;
}

Camera& Plater::get_camera()
{
    return p->camera;
}

//BBS: partplate list related functions
PartPlateList& Plater::get_partplate_list()
{
    return p->partplate_list;
}

void Plater::apply_background_progress()
{
    PartPlate* part_plate = p->partplate_list.get_curr_plate();
    int plate_index = p->partplate_list.get_curr_plate_index();
    bool result_valid = part_plate->is_slice_result_valid();
    //always apply the current plate's print
    Print::ApplyStatus invalidated = p->background_process.apply(this->model(), wxGetApp().preset_bundle->full_config());

    BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(" %1%: plate %2%, after apply, invalidated= %3%, previous result_valid %4% ") % __LINE__ % plate_index % invalidated % result_valid;
    if (invalidated & PrintBase::APPLY_STATUS_INVALIDATED)
    {
        part_plate->update_slice_result_valid_state(false);
        p->ready_to_slice = true;
        p->main_frame->update_slice_print_status(MainFrame::eEventPlateUpdate, true);
    }
}

//BBS: select Plate
int Plater::select_plate(int plate_index, bool need_slice)
{
    int ret;
    BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(" %1%: plate %2%, need_slice %3% ")%__LINE__ %plate_index  %need_slice;
    take_snapshot("select partplate!");
    ret = p->partplate_list.select_plate(plate_index);
    if (!ret) {
        if (is_view3D_shown())
            wxGetApp().plater()->canvas3D()->render();
    }

    if ((!ret) && (p->background_process.can_switch_print()))
    {
        //select successfully
        p->partplate_list.update_slice_context_to_current_plate(p->background_process);
        p->preview->update_gcode_result(p->partplate_list.get_current_slice_result());
        p->update_print_volume_state();

        PartPlate* part_plate = p->partplate_list.get_curr_plate();
        bool result_valid = part_plate->is_slice_result_valid();
        PrintBase* print = nullptr;
        GCodeResult* gcode_result = nullptr;
        Print::ApplyStatus invalidated;

        part_plate->get_print(&print, &gcode_result, NULL);

        //always apply the current plate's print
        invalidated = p->background_process.apply(this->model(), wxGetApp().preset_bundle->full_config());

        BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(" %1%: plate %2%, after apply, invalidated= %3%, previous result_valid %4% ")%__LINE__ %plate_index  %invalidated %result_valid;
        if (result_valid)
        {
            if (is_preview_shown())
            {
                if (need_slice) { //from preview's thumbnail
                    if ((invalidated & PrintBase::APPLY_STATUS_INVALIDATED) || (gcode_result->moves.empty())){
                        //part_plate->update_slice_result_valid_state(false);
                        p->process_completed_with_error = false;
                        p->m_slice_all = false;
                        reset_gcode_toolpaths();
                        reslice();
                    }
                    else {
                        //just refresh_print
                        refresh_print();
                        p->main_frame->update_slice_print_status(MainFrame::eEventPlateUpdate, false, true);
                    }
                }
                else {// from multiple slice's next
                    //do nothing
                }
            }
            else
            {
                if (invalidated & PrintBase::APPLY_STATUS_INVALIDATED)
                {
                    part_plate->update_slice_result_valid_state(false);
                    // BBS
                    //p->show_action_buttons(true);
                    p->ready_to_slice = true;
                    p->main_frame->update_slice_print_status(MainFrame::eEventPlateUpdate, true);
                }
                else
                {
                    // BBS
                    //p->show_action_buttons(false);
                    p->ready_to_slice = false;
                    p->main_frame->update_slice_print_status(MainFrame::eEventPlateUpdate, false);

                    refresh_print();
                }
            }
        }
        else
        {
            //check inside status
            bool model_fits = p->view3D->get_canvas3d()->check_volumes_outside_state() != ModelInstancePVS_Partly_Outside;
            if (is_preview_shown())
            {
                if (need_slice)
                {
                    p->process_completed_with_error = false;
                    p->m_slice_all = false;
                    reset_gcode_toolpaths();
                    if (model_fits)
                        reslice();
                    else {
                        p->ready_to_slice = false;
                        p->main_frame->update_slice_print_status(MainFrame::eEventPlateUpdate, false);
                        refresh_print();
                    }
                }
            }
            else
            {
                if (p->printer_technology == ptFFF) {
                    StringObjectException warning;
                    Polygons polygons;
                    std::vector<std::pair<Polygon, float>> height_polygons;
                    StringObjectException err = p->background_process.validate(&warning, &polygons, &height_polygons);
                    BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(": validate err=%1%, warning=%2%")%err.string%warning.string;

                    if (err.string.empty()) {
                        p->notification_manager->set_all_slicing_errors_gray(true);
                        p->notification_manager->close_notification_of_type(NotificationType::ValidateError);

                        // Pass a warning from validation and either show a notification,
                        // or hide the old one.
                        p->process_validation_warning(warning);
                        p->view3D->get_canvas3d()->reset_sequential_print_clearance();
                        p->view3D->get_canvas3d()->set_as_dirty();
                        p->view3D->get_canvas3d()->request_extra_frame();
                    }
                    else {
                        // The print is not valid.
                        // Show error as notification.
                        p->notification_manager->push_validate_error_notification(err);
                        model_fits = false;
                        p->view3D->get_canvas3d()->set_sequential_print_clearance_visible(true);
                        p->view3D->get_canvas3d()->set_sequential_print_clearance_render_fill(true);
                        p->view3D->get_canvas3d()->set_sequential_print_clearance_polygons(polygons, height_polygons);
                    }
                    /*if (fff_print->config().print_sequence == PrintSequence::ByObject)
                    {
                        Polygons polygons;
                        std::vector<std::pair<Polygon, float>> height_polygons;
                        auto ret = Print::sequential_print_clearance_valid(*fff_print, &polygons, &height_polygons);
                        if (!ret.string.empty()) {
                            model_fits = false;
                            p->view3D->get_canvas3d()->set_sequential_print_clearance_visible(true);
                            p->view3D->get_canvas3d()->set_sequential_print_clearance_render_fill(true);
                            p->view3D->get_canvas3d()->set_sequential_print_clearance_polygons(polygons, height_polygons);
                        }
                        else {
                            p->view3D->get_canvas3d()->reset_sequential_print_clearance();
                            p->view3D->get_canvas3d()->set_as_dirty();
                            p->view3D->get_canvas3d()->request_extra_frame();
                        }
                    }*/
                }
                //BBS: add partplate logic
                PartPlate* part_plate = p->partplate_list.get_curr_plate();
                part_plate->update_slice_ready_status(model_fits);

                if (model_fits){
                    p->process_completed_with_error = false;
                }
                else {
                    p->process_completed_with_error = true;
                }

                // BBS: don't show action buttons
                //p->show_action_buttons(true);
                p->ready_to_slice = true;
                if (model_fits && part_plate->has_printable_instances())
                {
                    //p->view3D->get_canvas3d()->post_event(Event<bool>(EVT_GLCANVAS_ENABLE_ACTION_BUTTONS, true));
                    p->main_frame->update_slice_print_status(MainFrame::eEventPlateUpdate, true);
                }
                else
                {
                    //p->view3D->get_canvas3d()->post_event(Event<bool>(EVT_GLCANVAS_ENABLE_ACTION_BUTTONS, false));
                    p->main_frame->update_slice_print_status(MainFrame::eEventPlateUpdate, false);
                }
            }
        }
    }
    BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(" %1%: plate %2%, return %3%")%__LINE__ %plate_index %ret;
    return ret;
}

int Plater::select_sliced_plate(int plate_index)
{
    int ret = 0;
    BOOST_LOG_TRIVIAL(info) << "select_sliced_plate plate_idx=" << plate_index;

    Freeze();
    ret = select_plate(plate_index, true);
    if (ret)
    {
        BOOST_LOG_TRIVIAL(error) << "select_plate error for plate_idx=" << plate_index;
        Thaw();
        return -1;
    }
    p->partplate_list.select_plate_view();
    Thaw();

    return ret;
}

//BBS: select Plate by hover_id
int Plater::select_plate_by_hover_id(int hover_id, bool right_click)
{
    int ret;
    int action, plate_index;

    plate_index = hover_id / PartPlate::GRABBER_COUNT;
    action = hover_id % PartPlate::GRABBER_COUNT;

    BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(": enter, hover_id %1%, plate_index %2%, action %3%")%hover_id % plate_index %action;
    if (action == 0)
    {
        //select plate
        ret = p->partplate_list.select_plate(plate_index);
        if ((!ret)&&(p->background_process.can_switch_print()))
        {
            //select successfully
            p->partplate_list.update_slice_context_to_current_plate(p->background_process);
            p->preview->update_gcode_result(p->partplate_list.get_current_slice_result());
            p->update_print_volume_state();

            PartPlate* part_plate = p->partplate_list.get_curr_plate();
            bool result_valid = part_plate->is_slice_result_valid();
            PrintBase* print = nullptr;
            GCodeResult* gcode_result = nullptr;
            Print::ApplyStatus invalidated;

            part_plate->get_print(&print, &gcode_result, NULL);
            //always apply the current plate's print
            invalidated = p->background_process.apply(this->model(), wxGetApp().preset_bundle->full_config());

            BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(" %1%: after apply, invalidated= %2%, previous result_valid %3% ")%__LINE__ % invalidated %result_valid;
            if (result_valid)
            {
                if (invalidated & PrintBase::APPLY_STATUS_INVALIDATED)
                {
                    part_plate->update_slice_result_valid_state(false);

                    // BBS
                    //p->show_action_buttons(true);
                    p->ready_to_slice = true;
                    p->main_frame->update_slice_print_status(MainFrame::eEventPlateUpdate, true);
                }
                else
                {
                    // BBS
                    //p->show_action_buttons(false);
                    p->ready_to_slice = false;
                    p->main_frame->update_slice_print_status(MainFrame::eEventPlateUpdate, false);

                    refresh_print();
                }
            }
            else
            {
                //check inside status
                bool model_fits = p->view3D->get_canvas3d()->check_volumes_outside_state() != ModelInstancePVS_Partly_Outside;
                if (p->printer_technology == ptFFF) {
                    StringObjectException warning;
                    Polygons polygons;
                    std::vector<std::pair<Polygon, float>> height_polygons;
                    StringObjectException err = p->background_process.validate(&warning, &polygons, &height_polygons);
                    BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(": validate err=%1%, warning=%2%, model_fits %3%")%err.string%warning.string %model_fits;

                    if (err.string.empty()) {
                        p->notification_manager->set_all_slicing_errors_gray(true);
                        p->notification_manager->close_notification_of_type(NotificationType::ValidateError);

                        // Pass a warning from validation and either show a notification,
                        // or hide the old one.
                        p->process_validation_warning(warning);
                        p->view3D->get_canvas3d()->reset_sequential_print_clearance();
                        p->view3D->get_canvas3d()->set_as_dirty();
                        p->view3D->get_canvas3d()->request_extra_frame();
                    }
                    else {
                        // The print is not valid.
                        // Show error as notification.
                        p->notification_manager->push_validate_error_notification(err);
                        model_fits = false;
                        p->view3D->get_canvas3d()->set_sequential_print_clearance_visible(true);
                        p->view3D->get_canvas3d()->set_sequential_print_clearance_render_fill(true);
                        p->view3D->get_canvas3d()->set_sequential_print_clearance_polygons(polygons, height_polygons);
                    }
                    /*if (fff_print->config().print_sequence == PrintSequence::ByObject)
                    {
                        Polygons polygons;
                        std::vector<std::pair<Polygon, float>> height_polygons;
                        auto ret = Print::sequential_print_clearance_valid(*fff_print, &polygons, &height_polygons);
                        if (!ret.string.empty()) {
                            model_fits = false;
                            p->view3D->get_canvas3d()->set_sequential_print_clearance_visible(true);
                            p->view3D->get_canvas3d()->set_sequential_print_clearance_render_fill(true);
                            p->view3D->get_canvas3d()->set_sequential_print_clearance_polygons(polygons, height_polygons);
                        }
                        else {
                            p->view3D->get_canvas3d()->reset_sequential_print_clearance();
                            p->view3D->get_canvas3d()->set_as_dirty();
                            p->view3D->get_canvas3d()->request_extra_frame();
                        }
                    }*/
                }
                //BBS: add partplate logic
                PartPlate* part_plate = p->partplate_list.get_curr_plate();
                part_plate->update_slice_ready_status(model_fits);

                if (model_fits){
                    p->process_completed_with_error = false;
                }
                else {
                    p->process_completed_with_error = true;
                }

                // BBS: don't show action buttons
                //p->show_action_buttons(true);
                p->ready_to_slice = true;
                if (model_fits && part_plate->has_printable_instances())
                {
                    //p->view3D->get_canvas3d()->post_event(Event<bool>(EVT_GLCANVAS_ENABLE_ACTION_BUTTONS, true));
                    BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(": will set can_slice to true");
                    p->main_frame->update_slice_print_status(MainFrame::eEventPlateUpdate, true);
                }
                else
                {
                    BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(": will set can_slice to false, has_printable_instances %1%")%part_plate->has_printable_instances();
                    //p->view3D->get_canvas3d()->post_event(Event<bool>(EVT_GLCANVAS_ENABLE_ACTION_BUTTONS, false));
                    p->main_frame->update_slice_print_status(MainFrame::eEventPlateUpdate, false);
                }
            }
        }
    }
    else if ((action == 1)&&(!right_click))
    {
        //delete plate
        ret = delete_plate(plate_index);
    }
    else if ((action == 2)&&(!right_click))
    {
        //arrange the plate
        //take_snapshot("select_orient partplate");
        ret = select_plate(plate_index);
        if (!ret)
        {
            set_prepare_state(Job::PREPARE_STATE_MENU);
            orient();
        }
        else
        {
            BOOST_LOG_TRIVIAL(error) << __FUNCTION__ << "can not select plate %1%" << plate_index;
            ret = -1;
        }
    }
    else if ((action == 3)&&(!right_click))
    {
        //arrange the plate
        //take_snapshot("select_arrange partplate");
        ret = select_plate(plate_index);
        if (!ret)
        {
            set_prepare_state(Job::PREPARE_STATE_MENU);
            arrange();
        }
        else
        {
            BOOST_LOG_TRIVIAL(error) << __FUNCTION__ << "can not select plate %1%" << plate_index;
            ret = -1;
        }
    }
    else if ((action == 4)&&(!right_click))
    {
        //lock the plate
        take_snapshot("lock partplate");
        ret = p->partplate_list.lock_plate(plate_index, !p->partplate_list.is_locked(plate_index));
    }
    else
    {
        BOOST_LOG_TRIVIAL(error) << __FUNCTION__ << "invalid action %1%, with right_click=%2%" << action << right_click;
        ret = -1;
    }

    BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(" %1%: return %2%")%__LINE__ % ret;
    return ret;
}

//BBS: delete the plate, index= -1 means the current plate
int Plater::delete_plate(int plate_index)
{
    int index = plate_index, ret;

    if (plate_index == -1)
        index = p->partplate_list.get_curr_plate_index();

    take_snapshot("delete partplate");
    ret = p->partplate_list.delete_plate(index);

    //BBS: update the current print to the current plate
    p->partplate_list.update_slice_context_to_current_plate(p->background_process);
    p->preview->update_gcode_result(p->partplate_list.get_current_slice_result());
    p->sidebar->obj_list()->reload_all_plates();

    // BBS update default view
    //get_camera().select_view("topfront");
    //get_camera().requires_zoom_to_plate = REQUIRES_ZOOM_TO_ALL_PLATE;

    //need to call update
    update();
    return ret;
}

//BBS: set bed positions
void Plater::set_bed_position(Vec2d& pos)
{
    p->bed.set_position(pos);
}

//BBS: is the background process slicing currently
bool Plater::is_background_process_slicing() const
{
    return p->m_is_slicing;
}

//BBS: update slicing context
void Plater::update_slicing_context_to_current_partplate()
{
    p->partplate_list.update_slice_context_to_current_plate(p->background_process);
    p->preview->update_gcode_result(p->partplate_list.get_current_slice_result());
}

//BBS: show object info
void Plater::show_object_info()
{
    NotificationManager *notify_manager = get_notification_manager();
    const Selection& selection = get_selection();
    ModelObjectPtrs objects = model().objects;
    int obj_idx = selection.get_object_idx();
    std::string info_text;

    if (objects.empty() || (obj_idx < 0) || (obj_idx >= objects.size()) ||
        objects[obj_idx]->volumes.empty() ||// hack to avoid crash when deleting the last object on the bed
        (selection.is_single_full_object() && objects[obj_idx]->instances.size()> 1) ||
        !(selection.is_single_full_instance() || selection.is_single_volume()))
    {
        notify_manager->bbl_close_objectsinfo_notification();
        return;
    }

    const ModelObject* model_object = objects[obj_idx];
    int inst_idx = selection.get_instance_idx();
    if ((inst_idx < 0) || (inst_idx >= model_object->instances.size()))
    {
        notify_manager->bbl_close_objectsinfo_notification();
        return;
    }
    bool imperial_units = wxGetApp().app_config->get("use_inches") == "1";
    double koef = imperial_units ? GizmoObjectManipulation::mm_to_in : 1.0f;

    ModelVolume* vol = nullptr;
    Transform3d t;
    int face_count;
    Vec3d size;
    if (selection.is_single_volume()) {
        std::vector<int> obj_idxs, vol_idxs;
        wxGetApp().obj_list()->get_selection_indexes(obj_idxs, vol_idxs);
        if (vol_idxs.size() != 1)
        {
            //corner case when merge/split/remove
            return;
        }
        vol = model_object->volumes[vol_idxs[0]];
        t = model_object->instances[inst_idx]->get_matrix() * vol->get_matrix();
        info_text += (boost::format(_utf8(L("Part name: %1%\n"))) % vol->name).str();
        face_count = static_cast<int>(vol->mesh().facets_count());
        size = vol->get_convex_hull().transformed_bounding_box(t).size();
    }
    else {
        int obj_idx, vol_idx;
        wxGetApp().obj_list()->get_selected_item_indexes(obj_idx, vol_idx);
        if (obj_idx < 0) {
            //corner case when merge/split/remove
            return;
        }
        info_text += (boost::format(_utf8(L("Object name: %1%\n"))) % model_object->name).str();
        face_count = static_cast<int>(model_object->facets_count());
        size = model_object->instance_convex_hull_bounding_box(inst_idx).size();
    }

    //Vec3d size = vol ? vol->mesh().transformed_bounding_box(t).size() : model_object->instance_bounding_box(inst_idx).size();
    if (imperial_units)
        info_text += (boost::format(_utf8(L("Size: %1% x %2% x %3% in\n"))) %(size(0)*koef) %(size(1)*koef) %(size(2)*koef)).str();
    else
        info_text += (boost::format(_utf8(L("Size: %1% x %2% x %3% mm\n"))) %size(0) %size(1) %size(2)).str();

    const TriangleMeshStats& stats = vol ? vol->mesh().stats() : model_object->get_object_stl_stats();
    double volume_val = stats.volume;
    if (vol)
        volume_val *= std::fabs(t.matrix().block(0, 0, 3, 3).determinant());
    volume_val = volume_val * pow(koef,3);
    if (imperial_units)
        info_text += (boost::format(_utf8(L("Volume: %1% in³\n"))) %volume_val).str();
    else
        info_text += (boost::format(_utf8(L("Volume: %1% mm³\n"))) %volume_val).str();
    info_text += (boost::format(_utf8(L("Triangles: %1%\n"))) %face_count).str();

    wxString info_manifold;
    int non_manifold_edges = 0;
    auto mesh_errors = p->sidebar->obj_list()->get_mesh_errors_info(&info_manifold, &non_manifold_edges);
    info_text += into_u8(info_manifold);

    notify_manager->bbl_show_objectsinfo_notification(info_text, is_windows10()&&(non_manifold_edges > 0), !(p->current_panel == p->view3D));
}

bool Plater::show_publish_dialog(bool show)
{
    return p->show_publish_dlg(show);
}

#if ENABLE_ENVIRONMENT_MAP
void Plater::init_environment_texture()
{
    if (p->environment_texture.get_id() == 0)
        p->environment_texture.load_from_file(resources_dir() + "/images/Pmetal_001.png", false, GLTexture::SingleThreaded, false);
}

unsigned int Plater::get_environment_texture_id() const
{
    return p->environment_texture.get_id();
}
#endif // ENABLE_ENVIRONMENT_MAP

const BuildVolume& Plater::build_volume() const
{
    return p->bed.build_volume();
}

// BBS
#if 0
const GLToolbar& Plater::get_view_toolbar() const
{
    return p->view_toolbar;
}

GLToolbar& Plater::get_view_toolbar()
{
    return p->view_toolbar;
}
#endif

const GLToolbar& Plater::get_collapse_toolbar() const
{
    return p->collapse_toolbar;
}

GLToolbar& Plater::get_collapse_toolbar()
{
    return p->collapse_toolbar;
}

void Plater::update_preview_bottom_toolbar()
{
    p->update_preview_bottom_toolbar();
}

void Plater::reset_gcode_toolpaths()
{
    //BBS: add some logs
    BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << boost::format(": reset the gcode viewer's toolpaths");
    p->reset_gcode_toolpaths();
}

const Mouse3DController& Plater::get_mouse3d_controller() const
{
    return p->mouse3d_controller;
}

Mouse3DController& Plater::get_mouse3d_controller()
{
    return p->mouse3d_controller;
}

NotificationManager * Plater::get_notification_manager()
{
    return p->notification_manager.get();
}

const NotificationManager * Plater::get_notification_manager() const
{
    return p->notification_manager.get();
}

void Plater::init_notification_manager()
{
    p->init_notification_manager();
}

void Plater::show_status_message(std::string s)
{
    BOOST_LOG_TRIVIAL(trace) << "show_status_message:" << s;
}

bool Plater::can_add_timelapse_wt() const { return p->can_add_timelapse_wt(); } // BBS
bool Plater::can_delete() const { return p->can_delete(); }
bool Plater::can_delete_all() const { return p->can_delete_all(); }
bool Plater::can_add_model() const { return !is_background_process_slicing(); }
bool Plater::can_add_plate() const { return !is_background_process_slicing() && p->can_add_plate(); }
bool Plater::can_delete_plate() const { return p->can_delete_plate(); }
bool Plater::can_increase_instances() const { return p->can_increase_instances(); }
bool Plater::can_decrease_instances() const { return p->can_decrease_instances(); }
bool Plater::can_set_instance_to_object() const { return p->can_set_instance_to_object(); }
bool Plater::can_fix_through_netfabb() const { return p->can_fix_through_netfabb(); }
bool Plater::can_simplify() const { return p->can_simplify(); }
bool Plater::can_split_to_objects() const { return p->can_split_to_objects(); }
bool Plater::can_split_to_volumes() const { return p->can_split_to_volumes(); }
bool Plater::can_arrange() const { return p->can_arrange(); }
bool Plater::can_paste_from_clipboard() const
{
    const Selection& selection = p->view3D->get_canvas3d()->get_selection();
    const Selection::Clipboard& clipboard = selection.get_clipboard();

    if (clipboard.is_empty() && p->sidebar->obj_list()->clipboard_is_empty())
        return false;

    if ((wxGetApp().preset_bundle->printers.get_edited_preset().printer_technology() == ptSLA) && !clipboard.is_sla_compliant())
        return false;

    Selection::EMode mode = clipboard.get_mode();
    if ((mode == Selection::Volume) && !selection.is_from_single_instance())
        return false;

    if ((mode == Selection::Instance) && (selection.get_mode() != Selection::Instance))
        return false;

    return true;
}

//BBS support cut
bool Plater::can_cut_to_clipboard() const
{
    if (is_selection_empty())
        return false;
    return true;
}

bool Plater::can_copy_to_clipboard() const
{
    if (is_selection_empty())
        return false;

    const Selection& selection = p->view3D->get_canvas3d()->get_selection();
    if ((wxGetApp().preset_bundle->printers.get_edited_preset().printer_technology() == ptSLA) && !selection.is_sla_compliant())
        return false;

    return true;
}

bool Plater::can_undo() const { return p->undo_redo_stack().has_undo_snapshot(); }
bool Plater::can_redo() const { return p->undo_redo_stack().has_redo_snapshot(); }
bool Plater::can_reload_from_disk() const { return p->can_reload_from_disk(); }
//BBS
bool Plater::can_fillcolor() const { return p->can_fillcolor(); }
bool Plater::has_assmeble_view() const { return p->has_assemble_view(); }
bool Plater::can_replace_with_stl() const { return p->can_replace_with_stl(); }
bool Plater::can_mirror() const { return p->can_mirror(); }
bool Plater::can_split(bool to_objects) const { return p->can_split(to_objects); }
#if ENABLE_ENHANCED_PRINT_VOLUME_FIT
bool Plater::can_scale_to_print_volume() const { return p->can_scale_to_print_volume(); }
#endif // ENABLE_ENHANCED_PRINT_VOLUME_FIT

const UndoRedo::Stack& Plater::undo_redo_stack_main() const { return p->undo_redo_stack_main(); }
void Plater::clear_undo_redo_stack_main() { p->undo_redo_stack_main().clear(); }
void Plater::enter_gizmos_stack() { p->enter_gizmos_stack(); }
bool Plater::leave_gizmos_stack() { return p->leave_gizmos_stack(); } // BBS: return false if not changed
bool Plater::inside_snapshot_capture() { return p->inside_snapshot_capture(); }

void Plater::toggle_render_statistic_dialog()
{
    p->show_render_statistic_dialog = !p->show_render_statistic_dialog;
}

bool Plater::is_render_statistic_dialog_visible() const
{
    return p->show_render_statistic_dialog;
}


/*Plater::TakeSnapshot::TakeSnapshot(Plater *plater, const std::string &snapshot_name)
: TakeSnapshot(plater, from_u8(snapshot_name)) {}
Plater::TakeSnapshot::TakeSnapshot(Plater* plater, const std::string& snapshot_name, UndoRedo::SnapshotType snapshot_type)
: TakeSnapshot(plater, from_u8(snapshot_name), snapshot_type) {}*/


// Wrapper around wxWindow::PopupMenu to suppress error messages popping out while tracking the popup menu.
bool Plater::PopupMenu(wxMenu *menu, const wxPoint& pos)
{
    // Don't want to wake up and trigger reslicing while tracking the pop-up menu.
    SuppressBackgroundProcessingUpdate sbpu;
    // When tracking a pop-up menu, postpone error messages from the slicing result.
    m_tracking_popup_menu = true;
    bool out = this->wxPanel::PopupMenu(menu, pos);
    m_tracking_popup_menu = false;
    if (! m_tracking_popup_menu_error_message.empty()) {
        // Don't know whether the CallAfter is necessary, but it should not hurt.
        // The menus likely sends out some commands, so we may be safer if the dialog is shown after the menu command is processed.
        wxString message = std::move(m_tracking_popup_menu_error_message);
        wxTheApp->CallAfter([message, this]() { show_error(this, message); });
        m_tracking_popup_menu_error_message.clear();
    }
    return out;
}
void Plater::bring_instance_forward()
{
    p->bring_instance_forward();
}

// BBS
//BBS: add popup logic for table object
bool Plater::PopupObjectTable(int object_id, int volume_id, const wxPoint& position)
{
    return p->PopupObjectTable(object_id, volume_id, position);
}

bool Plater::PopupObjectTableBySelection()
{
    wxDataViewItem item;
    int obj_idx, vol_idx;
    const wxPoint pos = wxPoint(0, 0);  //Fake position
    wxGetApp().obj_list()->get_selected_item_indexes(obj_idx, vol_idx, item);
    return p->PopupObjectTable(obj_idx, vol_idx, pos);
}


wxMenu* Plater::plate_menu()            { return p->menus.plate_menu();             }
wxMenu* Plater::object_menu()           { return p->menus.object_menu();            }
wxMenu* Plater::part_menu()             { return p->menus.part_menu();              }
wxMenu* Plater::sla_object_menu()       { return p->menus.sla_object_menu();        }
wxMenu* Plater::default_menu()          { return p->menus.default_menu();           }
wxMenu* Plater::instance_menu()         { return p->menus.instance_menu();          }
wxMenu* Plater::layer_menu()            { return p->menus.layer_menu();             }
wxMenu* Plater::multi_selection_menu()  { return p->menus.multi_selection_menu();   }

SuppressBackgroundProcessingUpdate::SuppressBackgroundProcessingUpdate() :
    m_was_scheduled(wxGetApp().plater()->is_background_process_update_scheduled())
{
    wxGetApp().plater()->suppress_background_process(m_was_scheduled);
}

SuppressBackgroundProcessingUpdate::~SuppressBackgroundProcessingUpdate()
{
    wxGetApp().plater()->schedule_background_process(m_was_scheduled);
}

}}    // namespace Slic3r::GUI