support retina display

[wxWidgets.git] / include / wx / bitmap.h

diff --git a/include/wx/bitmap.h b/include/wx/bitmap.h
index fc2110755b3fb6474bcd784338d1366c5e3596ea..c6eceb596c6830a64d560f913af996782ce34e6d 100644 (file)
--- a/include/wx/bitmap.h
+++ b/include/wx/bitmap.h
@@ -26,6 +26,7 @@ class WXDLLIMPEXP_FWD_CORE wxBitmapHandler;
 class WXDLLIMPEXP_FWD_CORE wxIcon;
 class WXDLLIMPEXP_FWD_CORE wxMask;
 class WXDLLIMPEXP_FWD_CORE wxPalette;
+class WXDLLIMPEXP_FWD_CORE wxDC;
 
 // ----------------------------------------------------------------------------
 // wxVariant support
@@ -174,6 +175,8 @@ public:
 
     virtual bool Create(int width, int height, int depth = wxBITMAP_SCREEN_DEPTH) = 0;
     virtual bool Create(const wxSize& sz, int depth = wxBITMAP_SCREEN_DEPTH) = 0;
+    // Create a bitmap compatible with the given DC, inheriting its magnification factor
+    virtual bool Create(int width, int height, const wxDC& dc);
 
     virtual int GetHeight() const = 0;
     virtual int GetWidth() const = 0;
@@ -182,6 +185,13 @@ public:
     wxSize GetSize() const
         { return wxSize(GetWidth(), GetHeight()); }
 
+    // support for scaled bitmaps
+    virtual double GetScaleFactor() const { return 1.0; }
+    virtual double GetScaledWidth() const { return GetWidth() / GetScaleFactor(); }
+    virtual double GetScaledHeight() const { return GetHeight() / GetScaleFactor(); }
+    virtual wxSize GetScaledSize() const
+    { return wxSize(GetScaledWidth(), GetScaledHeight()); }
+
 #if wxUSE_IMAGE
     virtual wxImage ConvertToImage() const = 0;