Changed processing of a wxEVT_SYS_COLOUR_CHANGED event.

Only UI is updated. The application doesn't recreated now

src/slic3r/GUI/GUI_ObjectList.cpp

@@ -4029,6 +4029,26 @@ void ObjectList::msw_rescale()
     Layout();
 }
 
+void ObjectList::sys_color_changed()
+{
+    // msw_rescale_icons() updates icons, so use it
+    msw_rescale_icons();
+
+    // update existing items with bitmaps
+    m_objects_model->Rescale();
+
+    // msw_rescale_menu updates just icons, so use it
+    for (MenuWithSeparators* menu : { &m_menu_object, 
+                                      &m_menu_part, 
+                                      &m_menu_sla_object, 
+                                      &m_menu_instance, 
+                                      &m_menu_layer,
+                                      &m_menu_default})
+        msw_rescale_menu(menu);
+
+    Layout();
+}
+
 void ObjectList::ItemValueChanged(wxDataViewEvent &event)
 {
     if (event.GetColumn() == colName)

src/slic3r/GUI/GUI_ObjectList.hpp

@@ -386,6 +386,7 @@ public:
     void paste_objects_into_list(const std::vector<size_t>& object_idxs);
 
     void msw_rescale();
+    void sys_color_changed();
 
     void update_after_undo_redo();
     //update printable state for item from objects model

src/slic3r/GUI/GUI_ObjectManipulation.cpp

@@ -981,6 +981,23 @@ void ObjectManipulation::msw_rescale()
     get_og()->msw_rescale();
 }
 
+void ObjectManipulation::sys_color_changed()
+{
+    // btn...->msw_rescale() updates icon on button, so use it
+    m_mirror_bitmap_on.msw_rescale();
+    m_mirror_bitmap_off.msw_rescale();
+    m_mirror_bitmap_hidden.msw_rescale();
+    m_reset_scale_button->msw_rescale();
+    m_reset_rotation_button->msw_rescale();
+    m_drop_to_bed_button->msw_rescale();
+    m_lock_bnt->msw_rescale();
+
+    for (int id = 0; id < 3; ++id)
+        m_mirror_buttons[id].first->msw_rescale();
+
+    get_og()->msw_rescale();
+}
+
 static const char axes[] = { 'x', 'y', 'z' };
 ManipulationEditor::ManipulationEditor(ObjectManipulation* parent,
                                        const std::string& opt_key,

src/slic3r/GUI/GUI_ObjectManipulation.hpp

@@ -173,6 +173,7 @@ public:
     void update_item_name(const wxString &item_name);
     void update_warning_icon_state(const wxString& tooltip);
     void msw_rescale();
+    void sys_color_changed();
     void on_change(const std::string& opt_key, int axis, double new_value);
     void set_focused_editor(ManipulationEditor* focused_editor) {
 #ifndef __APPLE__

src/slic3r/GUI/GUI_Utils.hpp

@@ -124,6 +124,12 @@ public:
             // set value to _true_ in purpose of possibility of a display dpi changing from System Settings
                 m_can_rescale = true;
         });
+
+        this->Bind(wxEVT_SYS_COLOUR_CHANGED, [this](wxSysColourChangedEvent& event)
+        {
+            event.Skip();
+            on_sys_color_changed();
+        });
     }
 
     virtual ~DPIAware() {}
@@ -137,6 +143,7 @@ public:
 
 protected:
     virtual void on_dpi_changed(const wxRect &suggested_rect) = 0;
+    virtual void on_sys_color_changed() {};
 
 private:
     float m_scale_factor;

src/slic3r/GUI/MainFrame.cpp

@@ -190,6 +190,7 @@ DPIFrame(NULL, wxID_ANY, "", wxDefaultPosition, wxDefaultSize, wxDEFAULT_FRAME_S
         event.Skip();
     });
 
+    /*
     Bind(wxEVT_SYS_COLOUR_CHANGED, [this](wxSysColourChangedEvent& event)
     {
         bool recreate_gui = false;
@@ -210,6 +211,7 @@ DPIFrame(NULL, wxID_ANY, "", wxDefaultPosition, wxDefaultSize, wxDEFAULT_FRAME_S
             wxGetApp().recreate_GUI(_L("Changing of an application in respect to the system mode") + dots);
         event.Skip();
     });
+    */
 
     wxGetApp().persist_window_geometry(this, true);
 
@@ -575,6 +577,28 @@ void MainFrame::on_dpi_changed(const wxRect &suggested_rect)
     this->Maximize(is_maximized);
 }
 
+void MainFrame::on_sys_color_changed()
+{
+    wxBusyCursor wait;
+
+    // update label colors in respect to the system mode
+    wxGetApp().init_label_colours();
+
+    wxGetApp().preset_bundle->load_default_preset_bitmaps();
+
+    // update Plater
+    wxGetApp().plater()->sys_color_changed();
+
+    // update Tabs
+    for (auto tab : wxGetApp().tabs_list)
+        tab->sys_color_changed();
+
+    // msw_rescale_menu updates just icons, so use it
+    wxMenuBar* menu_bar = this->GetMenuBar();
+    for (size_t id = 0; id < menu_bar->GetMenuCount(); id++)
+        msw_rescale_menu(menu_bar->GetMenu(id));
+}
+
 void MainFrame::init_menubar()
 {
 #ifdef __APPLE__

src/slic3r/GUI/MainFrame.hpp

@@ -121,6 +121,7 @@ class MainFrame : public DPIFrame
 
 protected:
     virtual void on_dpi_changed(const wxRect &suggested_rect);
+    virtual void on_sys_color_changed() override;
 
 public:
     MainFrame();

src/slic3r/GUI/Plater.cpp

@@ -1090,6 +1090,34 @@ void Sidebar::msw_rescale()
     p->scrolled->Layout();
 }
 
+void Sidebar::sys_color_changed()
+{
+    // Update preset comboboxes in respect to the system color ...
+    // combo->msw_rescale() updates icon on button, so use it
+    for (PresetComboBox* combo : std::vector<PresetComboBox*>{  p->combo_print,
+                                                                p->combo_sla_print,
+                                                                p->combo_sla_material,
+                                                                p->combo_printer })
+        combo->msw_rescale();
+    for (PresetComboBox* combo : p->combos_filament)
+        combo->msw_rescale();
+
+    // ... then refill them and set min size to correct layout of the sidebar
+    update_all_preset_comboboxes();
+
+    p->object_list->sys_color_changed();
+    p->object_manipulation->sys_color_changed();
+//    p->object_settings->msw_rescale();
+//    p->object_layers->msw_rescale();
+
+    // btn...->msw_rescale() updates icon on button, so use it
+    p->btn_send_gcode->msw_rescale();
+    p->btn_remove_device->msw_rescale();
+    p->btn_export_gcode_removable->msw_rescale();
+
+    p->scrolled->Layout();
+}
+
 void Sidebar::search()
 {
     p->searcher.search();
@@ -5475,6 +5503,17 @@ void Plater::msw_rescale()
     GetParent()->Layout();
 }
 
+void Plater::sys_color_changed()
+{
+    p->sidebar->sys_color_changed();
+
+    // msw_rescale_menu updates just icons, so use it
+    p->msw_rescale_object_menu();
+
+    Layout();
+    GetParent()->Layout();
+}
+
 bool Plater::init_view_toolbar()
 {
     return p->init_view_toolbar();

src/slic3r/GUI/Plater.hpp

@@ -105,6 +105,7 @@ public:
     void update_mode_sizer() const;
     void update_reslice_btn_tooltip() const;
     void msw_rescale();
+    void sys_color_changed();
     void search();
     void jump_to_option(size_t selected);
 
@@ -308,6 +309,7 @@ public:
     bool can_reload_from_disk() const;
 
     void msw_rescale();
+    void sys_color_changed();
 
     bool init_view_toolbar();
 

src/slic3r/GUI/Search.cpp

@@ -668,6 +668,14 @@ void SearchDialog::on_dpi_changed(const wxRect& suggested_rect)
     Refresh();
 }
 
+void SearchDialog::on_sys_color_changed()
+{
+    // msw_rescale updates just icons, so use it
+    search_list_model->msw_rescale();
+
+    Refresh();
+}
+
 // ----------------------------------------------------------------------------
 // SearchListModel
 // ----------------------------------------------------------------------------

src/slic3r/GUI/Search.hpp

@@ -198,6 +198,7 @@ public:
 
 protected:
     void on_dpi_changed(const wxRect& suggested_rect) override;
+    virtual void on_sys_color_changed() override;
 };
 
 

src/slic3r/GUI/Tab.cpp

@@ -590,6 +590,18 @@ void TabPrinter::msw_rescale()
     Layout();
 }
 
+void TabPrinter::sys_color_changed() 
+{
+    Tab::sys_color_changed();
+
+    // update missed options_groups
+    const std::vector<PageShp>& pages = m_printer_technology == ptFFF ? m_pages_sla : m_pages_fff;
+    for (auto page : pages)
+        page->msw_rescale();
+
+    Layout();
+}
+
 void TabSLAMaterial::init_options_list()
 {
     if (!m_options_list.empty())
@@ -869,6 +881,41 @@ void Tab::msw_rescale()
     Layout();
 }
 
+void Tab::sys_color_changed()
+{
+    update_tab_ui();
+
+    // update buttons and cached bitmaps
+    for (const auto btn : m_scaled_buttons)
+        btn->msw_rescale();
+    for (const auto bmp : m_scaled_bitmaps)
+        bmp->msw_rescale();
+    for (ScalableBitmap& bmp : m_mode_bitmap_cache)
+        bmp.msw_rescale();
+
+    // update icons for tree_ctrl
+    for (ScalableBitmap& bmp : m_scaled_icons_list)
+        bmp.msw_rescale();
+    // recreate and set new ImageList for tree_ctrl
+    m_icons->RemoveAll();
+    m_icons = new wxImageList(m_scaled_icons_list.front().bmp().GetWidth(), m_scaled_icons_list.front().bmp().GetHeight());
+    for (ScalableBitmap& bmp : m_scaled_icons_list)
+        m_icons->Add(bmp.bmp());
+    m_treectrl->AssignImageList(m_icons);
+
+
+    // Colors for ui "decoration"
+    m_sys_label_clr = wxGetApp().get_label_clr_sys();
+    m_modified_label_clr = wxGetApp().get_label_clr_modified();
+    update_labels_colour();
+
+    // update options_groups
+    for (auto page : m_pages)
+        page->msw_rescale();
+
+    Layout();
+}
+
 Field* Tab::get_field(const t_config_option_key& opt_key, int opt_index/* = -1*/) const
 {
     Field* field = nullptr;

src/slic3r/GUI/Tab.hpp

@@ -318,6 +318,7 @@ public:
     void            update_mode();
     void            update_visibility();
     virtual void    msw_rescale();
+    virtual void	sys_color_changed();
 	Field*			get_field(const t_config_option_key& opt_key, int opt_index = -1) const;
     Field*          get_field(const t_config_option_key &opt_key, Page** selected_page, int opt_index = -1);
 	bool			set_value(const t_config_option_key& opt_key, const boost::any& value);
@@ -436,6 +437,7 @@ public:
 	void		on_preset_loaded() override;
 	void		init_options_list() override;
 	void		msw_rescale() override;
+	void		sys_color_changed() override;
     bool 		supports_printer_technology(const PrinterTechnology /* tech */) override { return true; }
 
 	wxSizer*	create_bed_shape_widget(wxWindow* parent);