initial commit

Signed-off-by: Peter Siegmund <mars3142@noreply.mars3142.dev>

libs/wxWidgets-3.3.1/include/wx/gtk/private/image.h

@@ -0,0 +1,48 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        wx/gtk/private/image.h
+// Author:      Paul Cornett
+// Copyright:   (c) 2020 Paul Cornett
+// Licence:     wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+// Class that can be used in place of GtkImage, to allow drawing of alternate
+// bitmaps, such as HiDPI or disabled.
+
+class wxGtkImage: GtkImage
+{
+public:
+    struct BitmapProvider
+    {
+        virtual ~BitmapProvider() = default;
+
+        virtual wxBitmap Get(int scale) const = 0;
+        virtual void Set(const wxBitmapBundle&) { }
+
+        // Simple helpers used in implementation.
+        static wxBitmap GetAtScale(const wxBitmapBundle& b, int scale)
+        {
+            return b.GetBitmap(b.GetDefaultSize() * scale);
+        }
+    };
+
+    static GType Type();
+    static GtkWidget* New(BitmapProvider* provider);
+    static GtkWidget* New(wxWindow* win = nullptr);
+
+    // Use bitmaps from the given bundle, the logical bitmap size is the
+    // default size of the bundle.
+    void Set(const wxBitmapBundle& bitmapBundle);
+
+    // This pointer is never null and is owned by this class.
+    BitmapProvider* m_provider;
+
+    wxDECLARE_NO_COPY_CLASS(wxGtkImage);
+
+    // This class is constructed by New() and destroyed by its GObject
+    // finalizer, so neither its ctor nor dtor can ever be used.
+    wxGtkImage() wxMEMBER_DELETE;
+    ~wxGtkImage() wxMEMBER_DELETE;
+};
+
+#define WX_GTK_IMAGE(obj) G_TYPE_CHECK_INSTANCE_CAST(obj, wxGtkImage::Type(), wxGtkImage)
+#define WX_GTK_IS_IMAGE(obj) G_TYPE_CHECK_INSTANCE_TYPE(obj, wxGtkImage::Type())