DarkMode for MSW (#6632)

* MSW specific: Dark Mode: First implementation

* Use menu instead of NoteBook

* Implemented MessageDialog
+ Fixed DarkMode for all dialogs and ColorPicker

* MSW DarkMode: Added missed updates for the switching between modes

* MSW DarkMode: Updated all existed context menus after switching of the mode
+ Added markers for the menu item witch is related to the selected tab

* Used wxFrame instead of wxDialog for SettingsDialog
(this change allow us to use menu bar in SettingsDialog)

+ fix for #6548 - Prusa Slicer 2.3.1 not activating non-modal settings window if settings window is minimized

* Implemented "Always use Dark mode colors" preference option

* Fixes for non_MSW build

* Next fixes for non-MSW builds

* Preferences: Fixed selection of the Settings Layout for non-MSW platforms
+ Updated DarkMode for colorpickers

* Windows DarkMode next fixes

* MSWDarkMode: Suppress to use system color to the PrusaSlicer
Select "Preferences -> Use Dark color mode (experimental)" to allow dark mode for the application

* Fixed MSW build

* MSWDarkMode: Upadteed color mode for ExtruderSequenceDialog and for dialogs related to the DoubleSlider

* Implemented Auto recreation of the PrusaSlicer when color mode is changed.

* Preferences: Added option "Set settings tabs as menu items (experimental)"

src/slic3r/GUI/GUI_Utils.hpp

@@ -55,6 +55,11 @@ int get_dpi_for_window(const wxWindow *window);
 wxFont get_default_font_for_dpi(const wxWindow* window, int dpi);
 inline wxFont get_default_font(const wxWindow* window) { return get_default_font_for_dpi(window, get_dpi_for_window(window)); }
 
+bool check_dark_mode();
+#ifdef _WIN32
+void update_dark_ui(wxWindow* window);
+#endif
+
 #if !wxVERSION_EQUAL_OR_GREATER_THAN(3,1,3)
 struct DpiChangedEvent : public wxEvent {
     int dpi;
@@ -92,6 +97,9 @@ public:
         this->SetFont(m_normal_font);
 #endif
         this->CenterOnParent();
+#ifdef _WIN32
+        update_dark_ui(this);
+#endif
 
         // Linux specific issue : get_dpi_for_window(this) still doesn't responce to the Display's scale in new wxWidgets(3.1.3).
         // So, calculate the m_em_unit value from the font size, as before
@@ -167,6 +175,14 @@ public:
     const wxFont& normal_font() const   { return m_normal_font; }
     void enable_force_rescale()         { m_force_rescale = true; }
 
+#if 0 //#ifdef _WIN32  // #ysDarkMSW - Use to force dark colors for SystemLightMode
+    void force_sys_color_changed()
+    {
+        update_dark_ui(this);
+        on_sys_color_changed();
+    }
+#endif
+
 protected:
     virtual void on_dpi_changed(const wxRect &suggested_rect) = 0;
     virtual void on_sys_color_changed() {};
@@ -243,6 +259,17 @@ private:
         m_prev_scale_factor = m_scale_factor;
     }
 
+#if 0 //#ifdef _WIN32  // #ysDarkMSW - Allow it when we deside to support the sustem colors for application 
+    bool HandleSettingChange(WXWPARAM wParam, WXLPARAM lParam) override
+    {
+        update_dark_ui(this);
+        on_sys_color_changed();
+
+        // let the system handle it
+        return false;
+    }
+#endif
+
 };
 
 typedef DPIAware<wxFrame> DPIFrame;