[QGIS Commit] r15324 - trunk/qgis/src/gui

[svn_qgis at osgeo.org]

Author: wonder
Date: 2011-03-03 12:08:00 -0800 (Thu, 03 Mar 2011)
New Revision: 15324

Modified:
   trunk/qgis/src/gui/qgsmapcanvasmap.cpp
Log:
Rendering to QPixmap supports antialiasing nowadays


Modified: trunk/qgis/src/gui/qgsmapcanvasmap.cpp
===================================================================
--- trunk/qgis/src/gui/qgsmapcanvasmap.cpp	2011-03-03 18:33:46 UTC (rev 15323)
+++ trunk/qgis/src/gui/qgsmapcanvasmap.cpp	2011-03-03 20:08:00 UTC (rev 15324)
@@ -61,11 +61,6 @@
 
 void QgsMapCanvasMap::render()
 {
-  // Rendering to a QImage gives incorrectly filled polygons in some
-  // cases (as at Qt4.1.4), but it is the only renderer that supports
-  // anti-aliasing, so we provide the means to swap between QImage and
-  // QPixmap.
-
   if ( mUseQImageToRender )
   {
     // use temporary image for rendering
@@ -99,6 +94,11 @@
     paint.begin( &mPixmap );
     // Clip our drawing to the QPixmap
     paint.setClipRect( mPixmap.rect() );
+
+    // antialiasing
+    if ( mAntiAliasing )
+      paint.setRenderHint( QPainter::Antialiasing );
+
     mCanvas->mapRenderer()->render( &paint );
     paint.end();
   }