Code refactoring:

- PresetCombpBoxes are extracted to the separate file.
- All preset icons are moved to the PresetComboBox from Preset and PresetBundle
- First "steps" to add physical printers to the printers list on the sidebar.

src/slic3r/GUI/PresetComboBoxes.hpp

@@ -0,0 +1,179 @@
+#ifndef slic3r_PresetComboBoxes_hpp_
+#define slic3r_PresetComboBoxes_hpp_
+
+#include <vector>
+
+#include <wx/panel.h>
+#include <wx/bmpcbox.h>
+#include <wx/gdicmn.h>
+
+#include "Preset.hpp"
+#include "wxExtensions.hpp"
+#include "GUI_Utils.hpp"
+
+class wxString;
+class wxTextCtrl;
+
+namespace Slic3r {
+
+namespace GUI {
+
+class BitmapCache;
+
+
+// ---------------------------------
+// ***  PresetComboBox  ***
+// ---------------------------------
+
+// BitmapComboBox used to presets list on Sidebar and Tabs
+class PresetComboBox : public wxBitmapComboBox
+{
+public:
+    PresetComboBox(wxWindow* parent, Preset::Type preset_type, const wxSize& size = wxDefaultSize);
+    ~PresetComboBox();
+
+	enum LabelItemType {
+		LABEL_ITEM_MARKER = 0xffffff01,
+		LABEL_ITEM_PHYSICAL_PRINTERS,
+		LABEL_ITEM_WIZARD_PRINTERS,
+        LABEL_ITEM_WIZARD_FILAMENTS,
+        LABEL_ITEM_WIZARD_MATERIALS,
+
+        LABEL_ITEM_MAX,
+	};
+
+    void set_label_marker(int item, LabelItemType label_item_type = LABEL_ITEM_MARKER);
+    int  em_unit() const                        { return m_em_unit; }
+
+    virtual void update() {};
+    virtual void msw_rescale();
+
+protected:
+    typedef std::size_t Marker;
+
+    Preset::Type        m_type;
+    std::string         m_main_bitmap_name;
+
+    PresetBundle*       m_preset_bundle {nullptr};
+    PresetCollection*   m_collection {nullptr};
+
+    // Caching color bitmaps for the filament combo box.
+    BitmapCache*        m_bitmap_cache {nullptr};
+    // Indicator, that the preset is compatible with the selected printer.
+    ScalableBitmap      m_bitmapCompatible;
+    // Indicator, that the preset is NOT compatible with the selected printer.
+    ScalableBitmap      m_bitmapIncompatible;
+    // Indicator, that the preset is system and not modified.
+    ScalableBitmap      m_bitmapLock;
+
+    int m_last_selected;
+    int m_em_unit;
+
+    // parameters for an icon's drawing
+    int icon_height;
+    int norm_icon_width;
+    int thin_icon_width;
+    int wide_icon_width;
+    int space_icon_width;
+    int thin_space_icon_width;
+    int wide_space_icon_width;
+
+#ifdef __linux__
+    static const char* separator_head() { return "------- "; }
+    static const char* separator_tail() { return " -------"; }
+#else // __linux__ 
+    static const char* separator_head() { return "————— "; }
+    static const char* separator_tail() { return " —————"; }
+#endif // __linux__
+    static wxString    separator(const std::string& label);
+
+#ifdef __APPLE__
+    /* For PresetComboBox we use bitmaps that are created from images that are already scaled appropriately for Retina
+     * (Contrary to the intuition, the `scale` argument for Bitmap's constructor doesn't mean
+     * "please scale this to such and such" but rather
+     * "the wxImage is already sized for backing scale such and such". )
+     * Unfortunately, the constructor changes the size of wxBitmap too.
+     * Thus We need to use unscaled size value for bitmaps that we use
+     * to avoid scaled size of control items.
+     * For this purpose control drawing methods and
+     * control size calculation methods (virtual) are overridden.
+     **/
+    virtual bool OnAddBitmap(const wxBitmap& bitmap) override;
+    virtual void OnDrawItem(wxDC& dc, const wxRect& rect, int item, int flags) const override;
+#endif
+
+private:
+    void fill_width_height();
+};
+
+
+// ---------------------------------
+// ***  PlaterPresetComboBox  ***
+// ---------------------------------
+
+class PlaterPresetComboBox : public PresetComboBox
+{
+public:
+    PlaterPresetComboBox(wxWindow *parent, Preset::Type preset_type);
+    ~PlaterPresetComboBox();
+
+    ScalableButton* edit_btn { nullptr };
+
+    void set_extruder_idx(const int extr_idx)   { m_extruder_idx = extr_idx; }
+    int  get_extruder_idx() const               { return m_extruder_idx; }
+
+    void update() override;
+    void msw_rescale() override;
+
+private:
+    int m_extruder_idx = -1;
+};
+
+
+// ---------------------------------
+// ***  PlaterPresetComboBox  ***
+// ---------------------------------
+
+class TabPresetComboBox : public PresetComboBox
+{
+public:
+    TabPresetComboBox(wxWindow *parent, Preset::Type preset_type);
+    ~TabPresetComboBox() {}
+    void set_show_incompatible_presets(bool show_incompatible_presets) {
+        show_incompatible = show_incompatible_presets;
+    }
+
+    void update() override;
+    void update_dirty();
+    void msw_rescale() override;
+
+private:
+    bool show_incompatible{false};
+};
+
+
+//------------------------------------------
+//          PhysicalPrinterDialog
+//------------------------------------------
+
+class PhysicalPrinterDialog : public DPIDialog
+{
+    std::string printer_name;
+    std::string preset_name;
+
+    wxTextCtrl* printer_text { nullptr };
+    PresetComboBox* printer_presets;
+
+public:
+    PhysicalPrinterDialog();
+    ~PhysicalPrinterDialog() {}
+
+protected:
+    void on_dpi_changed(const wxRect& suggested_rect) override;
+    void on_sys_color_changed() override {};
+};
+
+} // namespace GUI
+} // namespace Slic3r
+
+#endif