activating DrawRectangle optimization

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

diff --git a/include/wx/dc.h b/include/wx/dc.h
index 9c6748a920ac15e1af242f1027c403b3aa9a99cf..34f58e266258b14b9217967f81c14a118c62e9d3 100644 (file)
--- a/include/wx/dc.h
+++ b/include/wx/dc.h
@@ -283,7 +283,7 @@ public:
         return NULL;
     }
 
         return NULL;
     }
 

-    virtual void* GetHandle() const = 0;
+    virtual void* GetHandle() const { return NULL; }

     
     // query dimension, colour deps, resolution
 
     
     // query dimension, colour deps, resolution
 


@@ -433,8 +433,12 @@ public:
 
     // clipping
 
 
     // clipping
 

+    // Note that this pure virtual method has an implementation that updates
+    // the values returned by DoGetClippingBox() and so can be called from the
+    // derived class overridden version if it makes sense (i.e. if the clipping
+    // box coordinates are not already updated in some other way).

     virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
     virtual void DoSetClippingRegion(wxCoord x, wxCoord y,

-                                     wxCoord width, wxCoord height) = 0;
+                                     wxCoord w, wxCoord h) = 0;

 
     // NB: this function works with device coordinates, not the logical ones!
     virtual void DoSetDeviceClippingRegion(const wxRegion& region) = 0;
 
     // NB: this function works with device coordinates, not the logical ones!
     virtual void DoSetDeviceClippingRegion(const wxRegion& region) = 0;