freeze whole window for TLW

[wxWidgets.git] / src / osx / carbon / graphics.cpp

diff --git a/src/osx/carbon/graphics.cpp b/src/osx/carbon/graphics.cpp
index 1467704afdc9a74e72042a541e171f7cfdb0926b..99e1921ebfc6c52d4eb61a94f76cbdb310173551 100644 (file)
--- a/src/osx/carbon/graphics.cpp
+++ b/src/osx/carbon/graphics.cpp
@@ -1138,9 +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 );
 
@@ -1217,7 +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
@@ -1453,14 +1461,18 @@ public :
         m_cg = cg;
         m_offset = offset;
         if ( m_offset )
-            CGContextTranslateCTM( m_cg, (CGFloat) 0.5, (CGFloat) 0.5 );
+        {
+            m_userOffset = CGContextConvertSizeToUserSpace( m_cg, CGSizeMake( 0.5 , 0.5 ) );
+            CGContextTranslateCTM( m_cg, m_userOffset.width , m_userOffset.height );
+        }
     }
     ~wxQuartzOffsetHelper( )
     {
         if ( m_offset )
-            CGContextTranslateCTM( m_cg, (CGFloat) -0.5, (CGFloat) -0.5 );
+            CGContextTranslateCTM( m_cg, -m_userOffset.width , -m_userOffset.height );
     }
 public :
+    CGSize m_userOffset;
     CGContextRef m_cg;
     bool m_offset;
 } ;
@@ -2010,9 +2022,6 @@ 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
@@ -2352,10 +2361,13 @@ 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;
@@ -2450,7 +2462,7 @@ 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;