NEW: Official filament color selection approved

- Add a filament picker dialog for official color selection
- Enable displaying multiple filament colors in the picker dialog and preview sidebar
- Introduce two new config options:
  - `filament_multi_colors`
  - `filament_color_types`
  to both the application config and the 3MF config

jira: STUDIO-12346

Change-Id: I66f8c1ec9147df4f5948c8a329c1737551280e63
(cherry picked from commit 522dc0bbca49033a1ba9725ca7f6c3ea729691a6)

src/slic3r/GUI/FilamentPickerDialog.hpp

@@ -0,0 +1,89 @@
+#ifndef slic3r_GUI_FilamentPickerDialog_hpp_
+#define slic3r_GUI_FilamentPickerDialog_hpp_
+
+#include "GUI_App.hpp"
+#include "GUI.hpp"
+#include "GUI_Utils.hpp"
+#include "FilamentBitmapUtils.hpp"
+#include "Widgets/Button.hpp"
+#include "EncodedFilament.hpp"
+#include <wx/dialog.h>
+#include <wx/wx.h>
+#include <wx/scrolwin.h>
+#include <wx/bitmap.h>
+#include <wx/region.h>
+#include <vector>
+#include <string>
+
+namespace Slic3r { namespace GUI {
+
+class FilamentPickerDialog : public DPIDialog
+{
+public:
+    FilamentPickerDialog(wxWindow *parent, const wxString &fila_id, const FilamentColor &fila_color, const std::string &fila_type);
+    virtual ~FilamentPickerDialog();
+
+    // Public interface methods
+    bool IsDataLoaded() const { return m_is_data_loaded; }
+    wxColour GetSelectedColour() const;
+    const FilamentColor& GetSelectedFilamentColor() const { return m_current_filament_color; }
+
+protected:
+    void on_dpi_changed(const wxRect &suggested_rect) override;
+
+    // Event handlers
+#ifdef __WXGTK__
+    void OnWindowCreate(wxWindowCreateEvent& event);
+#endif
+    void OnMouseLeftDown(wxMouseEvent& event);
+    void OnMouseMove(wxMouseEvent& event);
+    void OnMouseLeftUp(wxMouseEvent& event);
+    void OnButtonPaint(wxPaintEvent& event);
+
+private:
+    // UI creation methods
+    wxBoxSizer* CreatePreviewPanel(const FilamentColor& fila_color, const std::string& fila_type);
+    wxScrolledWindow* CreateColorGrid();
+    wxBoxSizer* CreateSeparatorLine();
+    wxBoxSizer* CreateButtonPanel();
+    void BindEvents();
+
+    // UI update methods
+    void UpdatePreview(const FilamentColorCode& filament);
+    void UpdateButtonStates(wxBitmapButton* selected_btn);
+
+    // Shaped window methods
+    void SetWindowShape();
+    void CreateShapedBitmap();
+
+    // Data loading
+    bool LoadFilamentData(const wxString& fila_id);
+
+    // UI elements
+    wxStaticBitmap* m_color_demo{nullptr};
+    wxStaticText* m_label_preview_color{nullptr};
+    wxStaticText* m_label_preview_idx{nullptr};
+    wxStaticText* m_label_preview_type{nullptr};
+    wxButton* m_more_btn{nullptr};
+    Button* m_ok_btn{nullptr};
+    Button* m_cancel_btn{nullptr};
+    wxString* m_cur_color_name{nullptr};
+
+    // Data members
+    FilamentColorCodeQuery* m_color_query{nullptr};
+    FilamentColorCodes* m_current_color_codes{nullptr};
+    bool m_is_data_loaded{false};
+    wxBitmapButton* m_currently_selected_btn{nullptr};
+    FilamentColor m_current_filament_color;
+
+    // Shaped window members
+    wxBitmap m_shape_bmp;
+    int m_corner_radius{8};
+
+    // Mouse drag members
+    wxPoint m_drag_delta;
+};
+
+}} // namespace Slic3r::GUI
+
+#endif