]> git.saurik.com Git - wxWidgets.git/blobdiff - src/osx/carbon/graphics.cpp
removing event handlers on non-owned windows when the destroy event is sent
[wxWidgets.git] / src / osx / carbon / graphics.cpp
index e81a541cb53afe34139a170159b1c5fbbc603b4c..03fd9e2c50c19fd0c05397a6c1190fa0a3538478 100644 (file)
@@ -72,10 +72,12 @@ int UMAGetSystemVersion()
 #endif
 
 #if wxOSX_USE_COCOA_OR_IPHONE
-extern CGContextRef wxOSXGetContextFromCurrentNSContext() ;
+extern CGContextRef wxOSXGetContextFromCurrentContext() ;
+#if wxOSX_USE_COCOA
 extern bool wxOSXLockFocus( WXWidget view) ;
 extern void wxOSXUnlockFocus( WXWidget view) ;
 #endif
+#endif
 
 #if 1 // MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5
 
@@ -96,7 +98,7 @@ typedef enum CGCompositeOperation {
    kCGCompositeOperationDestinationAtop = 9,
    kCGCompositeOperationXOR             = 10,
    kCGCompositeOperationPlusDarker      = 11,
-// NS only, unsupported by CG : Highlight 
+// NS only, unsupported by CG : Highlight
    kCGCompositeOperationPlusLighter     = 12
 } CGCompositeOperation ;
 
@@ -171,7 +173,7 @@ CGColorRef wxMacCreateCGColor( const wxColour& col )
 CTFontRef wxMacCreateCTFont( const wxFont& font )
 {
 #ifdef __WXMAC__
-    return wxCFRetain((CTFontRef) font.GetCTFont());
+    return wxCFRetain((CTFontRef) font.OSXGetCTFont());
 #else
     return CTFontCreateWithName( wxCFStringRef( font.GetFaceName(), wxLocale::GetSystemEncoding() ) , font.GetPointSize() , NULL );
 #endif
@@ -451,32 +453,32 @@ wxMacCoreGraphicsPenData::wxMacCoreGraphicsPenData( wxGraphicsRenderer* renderer
 
     switch ( pen.GetStyle() )
     {
-        case wxSOLID :
+        case wxPENSTYLE_SOLID:
             break;
 
-        case wxDOT :
+        case wxPENSTYLE_DOT:
             m_count = WXSIZEOF(dotted);
             m_userLengths = new CGFloat[ m_count ] ;
             memcpy( m_userLengths, dotted, sizeof(dotted) );
             m_lengths = m_userLengths;
             break;
 
-        case wxLONG_DASH :
+        case wxPENSTYLE_LONG_DASH:
             m_count = WXSIZEOF(dashed);
             m_lengths = dashed;
             break;
 
-        case wxSHORT_DASH :
+        case wxPENSTYLE_SHORT_DASH:
             m_count = WXSIZEOF(short_dashed);
             m_lengths = short_dashed;
             break;
 
-        case wxDOT_DASH :
+        case wxPENSTYLE_DOT_DASH:
             m_count = WXSIZEOF(dotted_dashed);
             m_lengths = dotted_dashed;
             break;
 
-        case wxUSER_DASH :
+        case wxPENSTYLE_USER_DASH:
             wxDash *dashes;
             m_count = pen.GetDashes( &dashes );
             if ((dashes != NULL) && (m_count > 0))
@@ -495,7 +497,7 @@ wxMacCoreGraphicsPenData::wxMacCoreGraphicsPenData( wxGraphicsRenderer* renderer
             m_lengths = m_userLengths;
             break;
 
-        case wxSTIPPLE :
+        case wxPENSTYLE_STIPPLE:
             {
                 wxBitmap* bmp = pen.GetStipple();
                 if ( bmp && bmp->Ok() )
@@ -571,20 +573,6 @@ void wxMacCoreGraphicsPenData::Apply( wxGraphicsContext* context )
 // Brush
 //
 
-static const char *gs_stripedback_xpm[] = {
-/* columns rows colors chars-per-pixel */
-"4 4 2 1",
-". c #F0F0F0",
-"X c #ECECEC",
-/* pixels */
-"....",
-"....",
-"XXXX",
-"XXXX"
-};
-
-wxBitmap gs_stripedback_bmp( wxImage( (const char* const* ) gs_stripedback_xpm  ), -1 ) ;
-
 // make sure we all use one class for all conversions from wx to native colour
 
 class wxMacCoreGraphicsColour
@@ -815,7 +803,7 @@ public:
     virtual ATSUStyle GetATSUStyle() { return m_macATSUIStyle; }
 #endif
 #if wxOSX_USE_CORE_TEXT
-    CTFontRef GetCTFont() const { return m_ctFont ; }
+    CTFontRef OSXGetCTFont() const { return m_ctFont ; }
 #endif
     wxColour GetColour() const { return m_colour ; }
 
@@ -867,19 +855,19 @@ wxMacCoreGraphicsFontData::wxMacCoreGraphicsFontData(wxGraphicsRenderer* rendere
             kATSUSizeTag ,
             kATSUColorTag ,
     };
-    ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
+    ByteCount atsuSizes[WXSIZEOF(atsuTags)] =
     {
             sizeof( Fixed ) ,
             sizeof( RGBColor ) ,
     };
-    ATSUAttributeValuePtr atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
+    ATSUAttributeValuePtr atsuValues[WXSIZEOF(atsuTags)] =
     {
             &atsuSize ,
             &atsuColor ,
     };
 
     status = ::ATSUSetAttributes(
-        m_macATSUIStyle, sizeof(atsuTags) / sizeof(ATSUAttributeTag) ,
+        m_macATSUIStyle, WXSIZEOF(atsuTags),
         atsuTags, atsuSizes, atsuValues);
 
     wxASSERT_MSG( status == noErr , wxT("couldn't modify ATSU style") );
@@ -1150,9 +1138,12 @@ public :
     // appends a rectangle as a new closed subpath
     virtual void AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
 
-    // appends an ellipsis as a new closed subpath fitting the passed rectangle
+    // appends a circle as a new closed subpath 
     virtual void AddCircle( wxDouble x, wxDouble y, wxDouble r );
 
+    // appends an ellipsis as a new closed subpath fitting the passed rectangle
+    virtual void AddEllipse( wxDouble x, wxDouble y, wxDouble w, wxDouble h);
+
     // draws a an arc to two tangents connecting (current) to (x1,y1) and (x1,y1) to (x2,y2), also a straight line from (current) to (x1,y1)
     virtual void AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r );
 
@@ -1229,7 +1220,12 @@ void wxMacCoreGraphicsPathData::AddRectangle( wxDouble x, wxDouble y, wxDouble w
 
 void wxMacCoreGraphicsPathData::AddCircle( wxDouble x, wxDouble y , wxDouble r )
 {
-    CGPathAddArc( m_path , NULL , (CGFloat) x , (CGFloat) y , (CGFloat) r , (CGFloat) 0.0 , (CGFloat) (2 * M_PI) , true );
+    CGPathAddEllipseInRect( m_path, NULL, CGRectMake(x-r,y-r,2*r,2*r));
+}
+
+void wxMacCoreGraphicsPathData::AddEllipse( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
+{
+    CGPathAddEllipseInRect( m_path, NULL, CGRectMake(x,y,w,h));
 }
 
 // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
@@ -1347,7 +1343,7 @@ public:
     virtual void BeginLayer(wxDouble opacity);
 
     virtual void EndLayer();
-    
+
     //
     // transformation
     //
@@ -1519,12 +1515,14 @@ wxMacCoreGraphicsContext::wxMacCoreGraphicsContext( wxGraphicsRenderer* renderer
 #if wxOSX_USE_COCOA_OR_IPHONE
     m_view = window->GetHandle();
 
-    if ( !((wxWidgetCocoaImpl*) window->GetPeer())->IsFlipped() )
+#if wxOSX_USE_COCOA
+    if ( ! window->GetPeer()->IsFlipped() )
     {
         m_windowTransform = CGAffineTransformMakeTranslation( 0 , m_height );
         m_windowTransform = CGAffineTransformScale( m_windowTransform , 1 , -1 );
     }
     else
+#endif
     {
         m_windowTransform = CGAffineTransformIdentity;
     }
@@ -1593,18 +1591,25 @@ bool wxMacCoreGraphicsContext::EnsureIsValid()
     {
         if (m_invisible)
             return false;
-            
-#if wxOSX_USE_COCOA_OR_IPHONE
+
+#if wxOSX_USE_COCOA
         if ( wxOSXLockFocus(m_view) )
         {
-            m_cgContext = wxOSXGetContextFromCurrentNSContext();
-            wxASSERT_MSG( m_cgContext != NULL, _T("Unable to retrieve drawing context from View"));
+            m_cgContext = wxOSXGetContextFromCurrentContext();
+            wxASSERT_MSG( m_cgContext != NULL, wxT("Unable to retrieve drawing context from View"));
         }
         else
         {
             m_invisible = true;
         }
 #endif
+#if wxOSX_USE_IPHONE
+        m_cgContext = wxOSXGetContextFromCurrentContext();
+        if ( m_cgContext == NULL )
+        {
+            m_invisible = true;
+        }
+#endif
 #if wxOSX_USE_CARBON
         OSStatus status = QDBeginCGContext( GetWindowPort( m_windowRef ) , &m_cgContext );
         if ( status != noErr )
@@ -1614,9 +1619,11 @@ bool wxMacCoreGraphicsContext::EnsureIsValid()
 #endif
         if ( m_cgContext )
         {
-            CGContextConcatCTM( m_cgContext, m_windowTransform );
             CGContextSaveGState( m_cgContext );
+            CGContextConcatCTM( m_cgContext, m_windowTransform );
+            CGContextSetTextMatrix( m_cgContext, CGAffineTransformIdentity );
             m_contextSynthesized = true;
+#if wxOSX_USE_COCOA_OR_CARBON
             if ( m_clipRgn.get() )
             {
                 // the clip region is in device coordinates, so we convert this again to user coordinates
@@ -1635,8 +1642,9 @@ bool wxMacCoreGraphicsContext::EnsureIsValid()
                     CGContextClip( m_cgContext );
                 }
             }
+#endif
             CGContextSaveGState( m_cgContext );
-            
+
 #if 0 // turn on for debugging of clientdc
             static float color = 0.5 ;
             static int channel = 0 ;
@@ -1660,14 +1668,14 @@ bool wxMacCoreGraphicsContext::EnsureIsValid()
 
 bool wxMacCoreGraphicsContext::SetAntialiasMode(wxAntialiasMode antialias)
 {
-    if (EnsureIsValid()==false)
+    if (!EnsureIsValid())
         return true;
 
     if (m_antialias == antialias)
         return true;
-    
+
     m_antialias = antialias;
-    
+
     bool antialiasMode;
     switch (antialias)
     {
@@ -1686,17 +1694,17 @@ bool wxMacCoreGraphicsContext::SetAntialiasMode(wxAntialiasMode antialias)
 
 bool wxMacCoreGraphicsContext::SetCompositionMode(wxCompositionMode op)
 {
-    if (EnsureIsValid()==false)
+    if (!EnsureIsValid())
         return true;
 
     if ( m_composition == op )
         return true;
-        
+
     m_composition = op;
-    
+
     if (m_composition == wxCOMPOSITION_DEST)
         return true;
-        
+
 #if wxOSX_USE_COCOA_OR_CARBON
     if ( UMAGetSystemVersion() < 0x1060 )
     {
@@ -1705,37 +1713,37 @@ bool wxMacCoreGraphicsContext::SetCompositionMode(wxCompositionMode op)
         switch( op )
         {
         case wxCOMPOSITION_CLEAR:
-            cop = kCGCompositeOperationClear; 
+            cop = kCGCompositeOperationClear;
             break;
         case wxCOMPOSITION_SOURCE:
-            cop = kCGCompositeOperationCopy; 
+            cop = kCGCompositeOperationCopy;
             break;
         case wxCOMPOSITION_OVER:
-            mode = kCGBlendModeNormal; 
+            mode = kCGBlendModeNormal;
             break;
         case wxCOMPOSITION_IN:
-            cop = kCGCompositeOperationSourceIn; 
+            cop = kCGCompositeOperationSourceIn;
             break;
         case wxCOMPOSITION_OUT:
-            cop = kCGCompositeOperationSourceOut; 
+            cop = kCGCompositeOperationSourceOut;
             break;
         case wxCOMPOSITION_ATOP:
-            cop = kCGCompositeOperationSourceAtop; 
+            cop = kCGCompositeOperationSourceAtop;
             break;
         case wxCOMPOSITION_DEST_OVER:
-            cop = kCGCompositeOperationDestinationOver; 
+            cop = kCGCompositeOperationDestinationOver;
             break;
         case wxCOMPOSITION_DEST_IN:
-            cop = kCGCompositeOperationDestinationIn; 
+            cop = kCGCompositeOperationDestinationIn;
             break;
         case wxCOMPOSITION_DEST_OUT:
-            cop = kCGCompositeOperationDestinationOut; 
+            cop = kCGCompositeOperationDestinationOut;
             break;
         case wxCOMPOSITION_DEST_ATOP:
-           cop = kCGCompositeOperationDestinationAtop; 
+           cop = kCGCompositeOperationDestinationAtop;
             break;
         case wxCOMPOSITION_XOR:
-            cop = kCGCompositeOperationXOR; 
+            cop = kCGCompositeOperationXOR;
             break;
 #if MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5
         case wxCOMPOSITION_ADD:
@@ -1758,39 +1766,39 @@ bool wxMacCoreGraphicsContext::SetCompositionMode(wxCompositionMode op)
         switch( op )
         {
         case wxCOMPOSITION_CLEAR:
-            mode = kCGBlendModeClear; 
+            mode = kCGBlendModeClear;
             break;
         case wxCOMPOSITION_SOURCE:
-            mode = kCGBlendModeCopy; 
+            mode = kCGBlendModeCopy;
             break;
         case wxCOMPOSITION_OVER:
-            mode = kCGBlendModeNormal; 
+            mode = kCGBlendModeNormal;
             break;
         case wxCOMPOSITION_IN:
-            mode = kCGBlendModeSourceIn; 
+            mode = kCGBlendModeSourceIn;
             break;
         case wxCOMPOSITION_OUT:
-            mode = kCGBlendModeSourceOut; 
+            mode = kCGBlendModeSourceOut;
             break;
         case wxCOMPOSITION_ATOP:
-            mode = kCGBlendModeSourceAtop; 
+            mode = kCGBlendModeSourceAtop;
             break;
         case wxCOMPOSITION_DEST_OVER:
-            mode = kCGBlendModeDestinationOver; 
+            mode = kCGBlendModeDestinationOver;
             break;
         case wxCOMPOSITION_DEST_IN:
-            mode = kCGBlendModeDestinationIn; 
+            mode = kCGBlendModeDestinationIn;
             break;
         case wxCOMPOSITION_DEST_OUT:
-            mode = kCGBlendModeDestinationOut; 
+            mode = kCGBlendModeDestinationOut;
             break;
         case wxCOMPOSITION_DEST_ATOP:
-           mode = kCGBlendModeDestinationAtop; 
+           mode = kCGBlendModeDestinationAtop;
             break;
         case wxCOMPOSITION_XOR:
-            mode = kCGBlendModeXOR; 
+            mode = kCGBlendModeXOR;
             break;
-            
+
         case wxCOMPOSITION_ADD:
             mode = kCGBlendModePlusLighter ;
             break;
@@ -1903,9 +1911,9 @@ void wxMacCoreGraphicsContext::StrokePath( const wxGraphicsPath &path )
     if ( m_pen.IsNull() )
         return ;
 
-    if (EnsureIsValid()==false)
+    if (!EnsureIsValid())
         return;
-        
+
     if (m_composition == wxCOMPOSITION_DEST)
         return;
 
@@ -1918,9 +1926,9 @@ void wxMacCoreGraphicsContext::StrokePath( const wxGraphicsPath &path )
 
 void wxMacCoreGraphicsContext::DrawPath( const wxGraphicsPath &path , wxPolygonFillMode fillStyle )
 {
-    if (EnsureIsValid()==false)
+    if (!EnsureIsValid())
         return;
-        
+
     if (m_composition == wxCOMPOSITION_DEST)
         return;
 
@@ -1974,9 +1982,9 @@ void wxMacCoreGraphicsContext::FillPath( const wxGraphicsPath &path , wxPolygonF
     if ( m_brush.IsNull() )
         return;
 
-    if (EnsureIsValid()==false)
+    if (!EnsureIsValid())
         return;
-        
+
     if (m_composition == wxCOMPOSITION_DEST)
         return;
 
@@ -2010,13 +2018,10 @@ void wxMacCoreGraphicsContext::SetNativeContext( CGContextRef cg )
         CGContextRestoreGState( m_cgContext );
         if ( m_contextSynthesized )
         {
-            // TODO: in case of performance problems, try issuing this not too 
-            // frequently (half of refresh rate)
-            CGContextFlush(m_cgContext);
 #if wxOSX_USE_CARBON
             QDEndCGContext( GetWindowPort( m_windowRef ) , &m_cgContext);
 #endif
-#if wxOSX_USE_COCOA_OR_IPHONE
+#if wxOSX_USE_COCOA
             wxOSXUnlockFocus(m_view);
 #endif
         }
@@ -2075,12 +2080,12 @@ void wxMacCoreGraphicsContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDo
 
 void wxMacCoreGraphicsContext::DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
 {
-    if (EnsureIsValid()==false)
+    if (!EnsureIsValid())
         return;
 
     if (m_composition == wxCOMPOSITION_DEST)
         return;
-        
+
 #ifdef __WXMAC__
     wxMacCoreGraphicsBitmapData* refdata  =static_cast<wxMacCoreGraphicsBitmapData*>(bmp.GetRefData());
     CGImageRef image = refdata->GetBitmap();
@@ -2117,9 +2122,9 @@ void wxMacCoreGraphicsContext::DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble
 
 void wxMacCoreGraphicsContext::DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
 {
-    if (EnsureIsValid()==false)
+    if (!EnsureIsValid())
         return;
-        
+
     if (m_composition == wxCOMPOSITION_DEST)
         return;
 
@@ -2136,17 +2141,17 @@ void wxMacCoreGraphicsContext::DrawIcon( const wxIcon &icon, wxDouble x, wxDoubl
 
 void wxMacCoreGraphicsContext::PushState()
 {
-    if (EnsureIsValid()==false)
+    if (!EnsureIsValid())
         return;
-        
+
     CGContextSaveGState( m_cgContext );
 }
 
 void wxMacCoreGraphicsContext::PopState()
 {
-    if (EnsureIsValid()==false)
+    if (!EnsureIsValid())
         return;
-        
+
     CGContextRestoreGState( m_cgContext );
 }
 
@@ -2154,9 +2159,9 @@ void wxMacCoreGraphicsContext::DoDrawText( const wxString &str, wxDouble x, wxDo
 {
     wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::DrawText - no valid font set") );
 
-    if (EnsureIsValid()==false)
+    if (!EnsureIsValid())
         return;
-        
+
     if (m_composition == wxCOMPOSITION_DEST)
         return;
 
@@ -2165,7 +2170,7 @@ void wxMacCoreGraphicsContext::DoDrawText( const wxString &str, wxDouble x, wxDo
     {
         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
         wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
-        CTFontRef font = fref->GetCTFont();
+        CTFontRef font = fref->OSXGetCTFont();
         CGColorRef col = wxMacCreateCGColor( fref->GetColour() );
         CTUnderlineStyle ustyle = fref->GetUnderlined() ? kCTUnderlineStyleSingle : kCTUnderlineStyleNone ;
         wxCFRef<CFNumberRef> underlined( CFNumberCreate(NULL, kCFNumberSInt32Type, &ustyle) );
@@ -2217,9 +2222,9 @@ void wxMacCoreGraphicsContext::DoDrawRotatedText(const wxString &str,
 {
     wxCHECK_RET( !m_font.IsNull(), wxT("wxMacCoreGraphicsContext::DrawText - no valid font set") );
 
-    if (EnsureIsValid()==false)
+    if (!EnsureIsValid())
         return;
-        
+
     if (m_composition == wxCOMPOSITION_DEST)
         return;
 
@@ -2255,15 +2260,15 @@ void wxMacCoreGraphicsContext::DoDrawRotatedText(const wxString &str,
             {
                 kATSULineRotationTag ,
             };
-            ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
+            ByteCount atsuSizes[WXSIZEOF(atsuTags)] =
             {
                 sizeof( Fixed ) ,
             };
-            ATSUAttributeValuePtr    atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
+            ATSUAttributeValuePtr    atsuValues[WXSIZEOF(atsuTags)] =
             {
                 &atsuAngle ,
             };
-            status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
+            status = ::ATSUSetLayoutControls(atsuLayout , WXSIZEOF(atsuTags),
                                              atsuTags, atsuSizes, atsuValues );
         }
 
@@ -2272,15 +2277,15 @@ void wxMacCoreGraphicsContext::DoDrawRotatedText(const wxString &str,
             {
                 kATSUCGContextTag ,
             };
-            ByteCount atsuSizes[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
+            ByteCount atsuSizes[WXSIZEOF(atsuTags)] =
             {
                 sizeof( CGContextRef ) ,
             };
-            ATSUAttributeValuePtr    atsuValues[sizeof(atsuTags) / sizeof(ATSUAttributeTag)] =
+            ATSUAttributeValuePtr    atsuValues[WXSIZEOF(atsuTags)] =
             {
                 &m_cgContext ,
             };
-            status = ::ATSUSetLayoutControls(atsuLayout , sizeof(atsuTags) / sizeof(ATSUAttributeTag),
+            status = ::ATSUSetLayoutControls(atsuLayout , WXSIZEOF(atsuTags),
                                              atsuTags, atsuSizes, atsuValues );
         }
 
@@ -2342,7 +2347,7 @@ void wxMacCoreGraphicsContext::GetTextExtent( const wxString &str, wxDouble *wid
     if ( UMAGetSystemVersion() >= 0x1050 )
     {
         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
-        CTFontRef font = fref->GetCTFont();
+        CTFontRef font = fref->OSXGetCTFont();
 
         wxCFStringRef text(str, wxLocale::GetSystemEncoding() );
         CFStringRef keys[] = { kCTFontAttributeName  };
@@ -2352,10 +2357,13 @@ void wxMacCoreGraphicsContext::GetTextExtent( const wxString &str, wxDouble *wid
         wxCFRef<CFAttributedStringRef> attrtext( CFAttributedStringCreate(kCFAllocatorDefault, text, attributes) );
         wxCFRef<CTLineRef> line( CTLineCreateWithAttributedString(attrtext) );
 
-        double w;
+        // round the returned extent: this is probably more correct anyhow but
+        // we also need to do it to be consistent with GetPartialTextExtents()
+        // below and avoid strange situation when the last partial extent
+        // returned by it could have been greater than the full extent returned
+        // by us
         CGFloat a, d, l;
-
-        w = CTLineGetTypographicBounds(line, &a, &d, &l) ;
+        int w = CTLineGetTypographicBounds(line, &a, &d, &l) + 0.5;
 
         if ( height )
             *height = a+d+l;
@@ -2437,7 +2445,7 @@ void wxMacCoreGraphicsContext::GetPartialTextExtents(const wxString& text, wxArr
 #if wxOSX_USE_CORE_TEXT
     {
         wxMacCoreGraphicsFontData* fref = (wxMacCoreGraphicsFontData*)m_font.GetRefData();
-        CTFontRef font = fref->GetCTFont();
+        CTFontRef font = fref->OSXGetCTFont();
 
         wxCFStringRef t(text, wxLocale::GetSystemEncoding() );
         CFStringRef keys[] = { kCTFontAttributeName  };
@@ -2450,7 +2458,7 @@ void wxMacCoreGraphicsContext::GetPartialTextExtents(const wxString& text, wxArr
         int chars = text.length();
         for ( int pos = 0; pos < (int)chars; pos ++ )
         {
-            widths[pos] = CTLineGetOffsetForStringIndex( line, pos+1 , NULL )+0.5;
+            widths[pos] = CTLineGetOffsetForStringIndex( line, pos+1 , NULL );
         }
 
         return;
@@ -2621,6 +2629,9 @@ public :
     // create a native bitmap representation
     virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap ) ;
 
+    // create a graphics bitmap from a native bitmap
+    virtual wxGraphicsBitmap CreateBitmapFromNativeBitmap( void* bitmap );
+
     // create a native bitmap representation
     virtual wxGraphicsBitmap CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h  ) ;
 private :
@@ -2770,9 +2781,19 @@ wxGraphicsBitmap wxMacCoreGraphicsRenderer::CreateBitmap( const wxBitmap& bmp )
     if ( bmp.Ok() )
     {
         wxGraphicsBitmap p;
-#ifdef __WXMAC__
         p.SetRefData(new wxMacCoreGraphicsBitmapData( this , bmp.CreateCGImage(), bmp.GetDepth() == 1 ) );
-#endif
+        return p;
+    }
+    else
+        return wxNullGraphicsBitmap;
+}
+
+wxGraphicsBitmap wxMacCoreGraphicsRenderer::CreateBitmapFromNativeBitmap( void* bitmap )
+{
+    if ( bitmap != NULL )
+    {
+        wxGraphicsBitmap p;
+        p.SetRefData(new wxMacCoreGraphicsBitmapData( this , (CGImageRef) bitmap, false ));
         return p;
     }
     else