+WX_NSImage wxBitmap::GetNSImage(bool useMask) const
+{
+ if(!Ok())
+ return nil;
+ NSImage *nsimage = [[[NSImage alloc]
+ initWithSize:NSMakeSize(GetWidth(), GetHeight())] autorelease];
+ if(!nsimage)
+ return nil;
+ [nsimage addRepresentation: M_BITMAPDATA->m_cocoaNSBitmapImageRep];
+ if(useMask && GetMask())
+ {
+ // Show before/after to prove that the bitmap itself is not changed
+ // even though we just composited onto the NSImage
+ wxLogTrace(wxTRACE_COCOA,wxT("Before: bpp=%d"),[M_BITMAPDATA->m_cocoaNSBitmapImageRep bitsPerPixel]);
+ NSImage *maskImage = [[NSImage alloc]
+ initWithSize:NSMakeSize(GetWidth(), GetHeight())];
+ [maskImage addRepresentation: GetMask()->GetNSBitmapImageRep()];
+ [nsimage lockFocus];
+ [maskImage compositeToPoint:NSZeroPoint operation:NSCompositeDestinationIn];
+ [nsimage unlockFocus];
+ [maskImage release];
+ wxLogTrace(wxTRACE_COCOA,wxT("After: bpp=%d"),[M_BITMAPDATA->m_cocoaNSBitmapImageRep bitsPerPixel]);
+ }
+ return nsimage;
+}
+