X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/29188693b3b8ba4b07762df012cc652d421dae79..9c805dec6caf3c98a3797898cffe795b5b56e606:/include/wx/graphics.h

diff --git a/include/wx/graphics.h b/include/wx/graphics.h
index 4a2b42c974..b79ba6144c 100644
--- a/include/wx/graphics.h
+++ b/include/wx/graphics.h
@@ -503,7 +503,13 @@ public:
     virtual bool SetCompositionMode(wxCompositionMode op) = 0;
 
     // returns the size of the graphics context in device coordinates
-    virtual void GetSize( wxDouble* width, wxDouble* height);
+    void GetSize(wxDouble* width, wxDouble* height)
+    {
+        if ( width )
+            *width = m_width;
+        if ( height )
+            *height = m_height;
+    }
 
     // returns the resolution of the graphics context in device points per inch
     virtual void GetDPI( wxDouble* dpiX, wxDouble* dpiY);
@@ -636,14 +642,25 @@ public:
 
     // helper to determine if a 0.5 offset should be applied for the drawing operation
     virtual bool ShouldOffset() const { return false; }
-
+    
+    // indicates whether the context should try to offset for pixel boundaries, this only makes sense on 
+    // bitmap devices like screen, by default this is turned off
+    virtual void EnableOffset(bool enable = true);
+    
+    void DisableOffset() { EnableOffset(false); }
+    bool OffsetEnabled() { return m_enableOffset; }
+    
 protected:
+    // These fields must be initialized in the derived class ctors.
+    wxDouble m_width,
+             m_height;
 
     wxGraphicsPen m_pen;
     wxGraphicsBrush m_brush;
     wxGraphicsFont m_font;
     wxAntialiasMode m_antialias;
     wxCompositionMode m_composition;
+    bool m_enableOffset;
 
 protected:
     // implementations of overloaded public functions: we use different names