FIX: fix the duplicate model issue after open recent project in some corner cases

github issue-1185

Change-Id: I3be5be473cfe7328c4781b1533093cd860e64387

src/libslic3r/Format/bbs_3mf.cpp

@@ -5347,6 +5347,8 @@ void PlateData::parse_filament_info(GCodeProcessorResult *result)
         bool sub_model = !objects_data.empty();
         bool write_object = sub_model || !m_split_model;
 
+        BOOST_LOG_TRIVIAL(error) << __FUNCTION__ << ":" << __LINE__ << boost::format(", filename %1%, m_split_model %2%,  sub_model %3%")%filename % m_split_model % sub_model;
+
 #if WRITE_ZIP_LANGUAGE_ENCODING
         auto & zip_filename = filename;
 #else

src/slic3r/GUI/PartPlate.cpp

@@ -4279,8 +4279,8 @@ int PartPlateList::store_to_3mf_structure(PlateDataPtrs& plate_data_list, bool w
 				plate_data_item->objects_and_instances.emplace_back(it->first, it->second);
 		}
 
-		BOOST_LOG_TRIVIAL(info) << __FUNCTION__ <<boost::format(": plate %1%, gcode_filename=%2%, with_slice_info=%3%, slice_valid %4%")
+		BOOST_LOG_TRIVIAL(info) << __FUNCTION__ <<boost::format(": plate %1%, gcode_filename=%2%, with_slice_info=%3%, slice_valid %4%, object item count %5%.")
-			%i %m_plate_list[i]->m_gcode_result->filename % with_slice_info %m_plate_list[i]->is_slice_result_valid();
+			%i %m_plate_list[i]->m_gcode_result->filename % with_slice_info %m_plate_list[i]->is_slice_result_valid()%plate_data_item->objects_and_instances.size();
 
 		if (with_slice_info) {
 			if (m_plate_list[i]->get_slice_result() && m_plate_list[i]->is_slice_result_valid()) {

src/slic3r/GUI/Plater.cpp

@@ -7423,6 +7423,7 @@ int Plater::new_project(bool skip_confirm, bool silent)
 
     m_only_gcode = false;
     m_exported_file = false;
+    m_loading_project = false;
     get_notification_manager()->bbl_close_plateinfo_notification();
     get_notification_manager()->bbl_close_preview_only_notification();
 
@@ -7494,6 +7495,16 @@ void Plater::load_project(wxString const& filename2,
     //BBS: add only gcode mode
     bool previous_gcode = m_only_gcode;
 
+    // BBS
+    if (m_loading_project) {
+        //some error cases happens
+        //return directly
+        BOOST_LOG_TRIVIAL(warning) << __FUNCTION__ << boost::format(": current loading other project, return directly");
+        return;
+    }
+    else
+        m_loading_project = true;
+
     m_only_gcode = false;
     m_exported_file = false;
     get_notification_manager()->bbl_close_plateinfo_notification();
@@ -7558,6 +7569,8 @@ void Plater::load_project(wxString const& filename2,
     up_to_date(true, true);
 
     wxGetApp().params_panel()->switch_to_object_if_has_object_configs();
+
+    m_loading_project = false;
 }
 
 // BBS: save logic

src/slic3r/GUI/Plater.hpp

@@ -688,6 +688,7 @@ private:
     bool m_only_gcode { false };
     bool m_exported_file { false };
     bool skip_thumbnail_invalid { false };
+    bool m_loading_project {false };
     std::string m_preview_only_filename;
     int m_valid_plates_count { 0 };