FIX: cannot calibrate when printer is offline [STUDIO-3387]

Change-Id: I93cf532363bc41feee0deb9782906bd3e79ee127

src/slic3r/GUI/CalibrationWizard.cpp

@@ -556,6 +556,13 @@ void PressureAdvanceWizard::on_cali_start()
 void PressureAdvanceWizard::on_cali_save()
 {
     if (curr_obj) {
+        if (curr_obj->is_connecting() || !curr_obj->is_connected())
+        {
+            MessageDialog msg_dlg(nullptr, _L("Connecting to printer..."), wxEmptyString, wxOK);
+            msg_dlg.ShowModal();
+            return;
+        }
+
         if (curr_obj->get_printer_series() == PrinterSeries::SERIES_X1) {
             if (m_cali_method == CalibrationMethod::CALI_METHOD_AUTO) {
                 std::vector<PACalibResult> new_pa_cali_results;

src/slic3r/GUI/CalibrationWizardCaliPage.cpp

@@ -144,7 +144,7 @@ void CalibrationCaliPage::update(MachineObject* obj)
 
         if (obj->print_status == "RUNNING")
             m_is_between_start_and_running = false;
-        if (m_is_between_start_and_running) {
+        if (obj->is_connecting() || !obj->is_connected() || m_is_between_start_and_running) {
             reset_printing_values();
             m_action_panel->enable_button(CaliPageActionType::CALI_ACTION_CALI_NEXT, false);
             return;

src/slic3r/GUI/CalibrationWizardPresetPage.cpp

@@ -1159,6 +1159,10 @@ void CalibrationPresetPage::update_show_status()
         show_status(CaliPresetPageStatus::CaliPresetStatusUnsupportedPrinter);
         return;
     }
+    else if (obj_->is_connecting() || !obj_->is_connected()) {
+        show_status(CaliPresetPageStatus::CaliPresetStatusInConnecting);
+        return;
+    }
     else if (obj_->is_in_upgrading()) {
         show_status(CaliPresetPageStatus::CaliPresetStatusInUpgrading);
         return;
@@ -1310,6 +1314,11 @@ void CalibrationPresetPage::show_status(CaliPresetPageStatus status)
         update_print_status_msg(wxEmptyString, false);
         Enable_Send_Button(false);
     }
+    else if (status == CaliPresetPageStatus::CaliPresetStatusInConnecting) {
+        wxString msg_text = _L("Connecting to printer");
+        update_print_status_msg(msg_text, true);
+        Enable_Send_Button(false);
+    }
 
     Layout();
 }

src/slic3r/GUI/CalibrationWizardPresetPage.hpp

@@ -118,6 +118,7 @@ enum CaliPresetPageStatus
     CaliPresetStatusNeedForceUpgrading,
     CaliPresetStatusNeedConsistencyUpgrading,
     CaliPresetStatusUnsupportedPrinter,
+    CaliPresetStatusInConnecting, 
     CaliPresetStatusFilamentIncompatible,
 };