+CGImageRef wxMacCreateCGImageFromBitmap( const wxBitmap& bitmap )
+{
+ wxBitmapRefData * bmap = bitmap.GetBitmapData() ;
+ if ( bmap == NULL )
+ return NULL ;
+ return (CGImageRef) bmap->CreateCGImage();
+}
+
+void wxMacReleaseBitmapButton( ControlButtonContentInfo*info )
+{
+ if ( info->contentType == kControlContentIconRef )
+ {
+ ReleaseIconRef( info->u.iconRef ) ;
+ }
+ else if ( info->contentType == kControlNoContent )
+ {
+ // there's no bitmap at all, fall through silently
+ }
+ else if ( info->contentType == kControlContentPictHandle )
+ {
+ // owned by the bitmap, no release here
+ }
+ else if ( info->contentType == kControlContentCGImageRef )
+ {
+ CGImageRelease( info->u.imageRef ) ;
+ }
+ else
+ {
+ wxFAIL_MSG(wxT("Unexpected bitmap type") ) ;
+ }
+}
+
+#endif //wxUSE_BMPBUTTON
+
+#define M_BITMAPDATA ((wxBitmapRefData *)m_refData)
+
+void wxBitmapRefData::Init()
+{
+ m_width = 0 ;
+ m_height = 0 ;
+ m_depth = 0 ;
+ m_bytesPerRow = 0;
+ m_ok = false ;
+ m_bitmapMask = NULL ;
+ m_cgImageRef = NULL ;
+
+ m_iconRef = NULL ;
+ m_pictHandle = NULL ;
+ m_hBitmap = NULL ;
+
+ m_rawAccessCount = 0 ;
+ m_hasAlpha = false;
+}
+
+wxBitmapRefData::wxBitmapRefData(const wxBitmapRefData &tocopy)
+{
+ Init();
+ Create(tocopy.m_width, tocopy.m_height, tocopy.m_depth);
+
+ if (tocopy.m_bitmapMask)
+ m_bitmapMask = new wxMask(*tocopy.m_bitmapMask);
+ else if (tocopy.m_hasAlpha)
+ UseAlpha(true);
+
+ unsigned char* dest = (unsigned char*)GetRawAccess();
+ unsigned char* source = (unsigned char*)tocopy.GetRawAccess();
+ size_t numbytes = m_bytesPerRow * m_height;
+ memcpy( dest, source, numbytes );
+}
+
+wxBitmapRefData::wxBitmapRefData()
+{
+ Init() ;
+}
+
+wxBitmapRefData::wxBitmapRefData( int w , int h , int d )
+{
+ Init() ;
+ Create( w , h , d ) ;
+}
+
+bool wxBitmapRefData::Create( int w , int h , int d )
+{
+ m_width = wxMax(1, w);
+ m_height = wxMax(1, h);
+ m_depth = d ;
+
+ m_bytesPerRow = GetBestBytesPerRow( w * 4 ) ;
+ size_t size = m_bytesPerRow * h ;
+ void* data = m_memBuf.GetWriteBuf( size ) ;
+ memset( data , 0 , size ) ;
+ m_memBuf.UngetWriteBuf( size ) ;
+
+ m_hBitmap = NULL ;
+ m_hBitmap = CGBitmapContextCreate((char*) data, m_width, m_height, 8, m_bytesPerRow, wxMacGetGenericRGBColorSpace(), kCGImageAlphaNoneSkipFirst );
+ wxASSERT_MSG( m_hBitmap , wxT("Unable to create CGBitmapContext context") ) ;
+ CGContextTranslateCTM( m_hBitmap, 0, m_height );
+ CGContextScaleCTM( m_hBitmap, 1, -1 );
+
+ m_ok = ( m_hBitmap != NULL ) ;
+
+ return m_ok ;
+}
+
+void wxBitmapRefData::UseAlpha( bool use )
+{
+ if ( m_hasAlpha == use )
+ return ;
+
+ m_hasAlpha = use ;
+
+ CGContextRelease( m_hBitmap );
+ m_hBitmap = CGBitmapContextCreate((char*) m_memBuf.GetData(), m_width, m_height, 8, m_bytesPerRow, wxMacGetGenericRGBColorSpace(), m_hasAlpha ? kCGImageAlphaPremultipliedFirst : kCGImageAlphaNoneSkipFirst );
+ wxASSERT_MSG( m_hBitmap , wxT("Unable to create CGBitmapContext context") ) ;
+ CGContextTranslateCTM( m_hBitmap, 0, m_height );
+ CGContextScaleCTM( m_hBitmap, 1, -1 );
+}
+
+void *wxBitmapRefData::GetRawAccess() const
+{
+ wxCHECK_MSG( IsOk(), NULL , wxT("invalid bitmap") ) ;
+ return m_memBuf.GetData() ;
+}
+
+void *wxBitmapRefData::BeginRawAccess()
+{
+ wxCHECK_MSG( IsOk(), NULL, wxT("invalid bitmap") ) ;
+ wxASSERT( m_rawAccessCount == 0 ) ;
+ wxASSERT_MSG( m_pictHandle == NULL && m_iconRef == NULL ,
+ wxT("Currently, modifing bitmaps that are used in controls already is not supported") ) ;
+
+ ++m_rawAccessCount ;
+
+ // we must destroy an existing cached image, as
+ // the bitmap data may change now
+ if ( m_cgImageRef )
+ {
+ CGImageRelease( m_cgImageRef ) ;
+ m_cgImageRef = NULL ;
+ }
+
+ return m_memBuf.GetData() ;
+}
+
+void wxBitmapRefData::EndRawAccess()
+{
+ wxCHECK_RET( IsOk() , wxT("invalid bitmap") ) ;
+ wxASSERT( m_rawAccessCount == 1 ) ;
+
+ --m_rawAccessCount ;
+}
+
+bool wxBitmapRefData::HasNativeSize()
+{
+ int w = GetWidth() ;
+ int h = GetHeight() ;
+ int sz = wxMax( w , h ) ;
+
+ return ( sz == 128 || sz == 48 || sz == 32 || sz == 16 );
+}
+
+IconRef wxBitmapRefData::GetIconRef()
+{
+ if ( m_iconRef == NULL )
+ {
+ // Create Icon Family Handle
+
+ IconFamilyHandle iconFamily = (IconFamilyHandle) NewHandle( 0 );
+
+ int w = GetWidth() ;
+ int h = GetHeight() ;
+ int sz = wxMax( w , h ) ;
+
+ OSType dataType = 0 ;
+ OSType maskType = 0 ;
+
+ switch (sz)
+ {
+ case 128:
+#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
+ if ( UMAGetSystemVersion() >= 0x1050 )
+ {
+ dataType = kIconServices128PixelDataARGB ;
+ }
+ else