+// Implementation Notes
+// --------------------
+//
+// we are always working with a 32 bit deep pixel buffer
+// under QuickDraw its alpha parts are going to be ignored in the GWorld,
+// therefore we have a separate GWorld there for blitting the mask in
+
+// under Quartz then content is transformed into a CGImageRef representing the same data
+// which can be transferred to the GPU by the OS for fast rendering
+
+class WXDLLEXPORT wxBitmapRefData: public wxGDIRefData
+{
+ friend class WXDLLIMPEXP_FWD_CORE wxIcon;
+ friend class WXDLLIMPEXP_FWD_CORE wxCursor;
+public:
+ wxBitmapRefData(int width , int height , int depth);
+ wxBitmapRefData();
+ wxBitmapRefData(const wxBitmapRefData &tocopy);
+
+ virtual ~wxBitmapRefData();
+
+ void Free();
+ bool Ok() const { return IsOk(); }
+ bool IsOk() const { return m_ok; }
+ void SetOk( bool isOk) { m_ok = isOk; }
+
+ void SetWidth( int width ) { m_width = width; }
+ void SetHeight( int height ) { m_height = height; }
+ void SetDepth( int depth ) { m_depth = depth; }
+
+ int GetWidth() const { return m_width; }
+ int GetHeight() const { return m_height; }
+ int GetDepth() const { return m_depth; }
+
+ void *GetRawAccess() const;
+ void *BeginRawAccess();
+ void EndRawAccess();
+
+ bool HasAlpha() const { return m_hasAlpha; }
+ void UseAlpha( bool useAlpha );
+
+public:
+#if wxUSE_PALETTE
+ wxPalette m_bitmapPalette;
+#endif // wxUSE_PALETTE
+
+ wxMask * m_bitmapMask; // Optional mask
+ CGImageRef CreateCGImage() const;
+
+ // returns true if the bitmap has a size that
+ // can be natively transferred into a true icon
+ // if no is returned GetIconRef will still produce
+ // an icon but it will be generated via a PICT and
+ // rescaled to 16 x 16
+ bool HasNativeSize();
+
+ // caller should increase ref count if needed longer
+ // than the bitmap exists
+ IconRef GetIconRef();
+
+ // returns a Pict from the bitmap content
+ PicHandle GetPictHandle();
+
+ CGContextRef GetBitmapContext() const;
+
+ int GetBytesPerRow() const { return m_bytesPerRow; }
+ private :
+ bool Create(int width , int height , int depth);
+ void Init();
+
+ int m_width;
+ int m_height;
+ int m_bytesPerRow;
+ int m_depth;
+ bool m_hasAlpha;
+ wxMemoryBuffer m_memBuf;
+ int m_rawAccessCount;
+ bool m_ok;
+ mutable CGImageRef m_cgImageRef;
+
+ IconRef m_iconRef;
+ PicHandle m_pictHandle;
+
+ CGContextRef m_hBitmap;
+};
+
+
+#define wxMAC_USE_PREMULTIPLIED_ALPHA 1
+static const int kBestByteAlignement = 16;
+static const int kMaskBytesPerPixel = 1;
+
+static int GetBestBytesPerRow( int rawBytes )
+{
+ return (((rawBytes)+kBestByteAlignement-1) & ~(kBestByteAlignement-1) );
+}
+
+#if wxUSE_GUI
+
+// this is used for more controls than just the wxBitmap button, also for notebooks etc
+
+void wxMacCreateBitmapButton( ControlButtonContentInfo*info , const wxBitmap& bitmap , int forceType )
+{
+ memset( info , 0 , sizeof(ControlButtonContentInfo) ) ;
+ if ( bitmap.Ok() )
+ {
+ wxBitmapRefData * bmap = bitmap.GetBitmapData() ;
+ if ( bmap == NULL )
+ return ;
+
+ if ( forceType == 0 )
+ {
+ forceType = kControlContentCGImageRef;
+ }
+
+ if ( forceType == kControlContentIconRef )
+ {
+ wxBitmap scaleBmp ;
+ wxBitmapRefData* bmp = bmap ;
+
+ if ( !bmap->HasNativeSize() )
+ {
+ // as PICT conversion will only result in a 16x16 icon, let's attempt
+ // a few scales for better results
+
+ int w = bitmap.GetWidth() ;
+ int h = bitmap.GetHeight() ;
+ int sz = wxMax( w , h ) ;
+ if ( sz == 24 || sz == 64 )
+ {
+ scaleBmp = wxBitmap( bitmap.ConvertToImage().Scale( w * 2 , h * 2 ) ) ;
+ bmp = scaleBmp.GetBitmapData() ;
+ }
+ }
+
+ info->contentType = kControlContentIconRef ;
+ info->u.iconRef = bmp->GetIconRef() ;
+ AcquireIconRef( info->u.iconRef ) ;
+ }
+ else if ( forceType == kControlContentCGImageRef )
+ {
+ info->contentType = kControlContentCGImageRef ;
+ info->u.imageRef = (CGImageRef) bmap->CreateCGImage() ;
+ }
+ else
+ {
+#ifndef __LP64__
+ info->contentType = kControlContentPictHandle ;
+ info->u.picture = bmap->GetPictHandle() ;
+#endif
+ }
+ }
+}
+
+CGImageRef wxMacCreateCGImageFromBitmap( const wxBitmap& bitmap )
projects / wxWidgets.git / blobdiff