Disable QGraphicsRectItem during long rendering action such that it does not get any concurrent paint events. This modification fixes the WMS render bug on win32 (at least for me, needs more testing though).

mhugent · mhugent · commit ccbc97072b13 · 2007-11-03T15:06:25.000Z
git-svn-id: http://svn.osgeo.org/qgis/trunk@7316 c8812cc2-4d05-0410-92ff-de0c093fc19c
diff --git a/src/gui/qgsmapcanvasmap.cpp b/src/gui/qgsmapcanvasmap.cpp
@@ -34,7 +34,9 @@ void QgsMapCanvasMap::paint(QPainter* p, const QStyleOptionGraphicsItem*, QWidge
 {
   if (mCanvas->isDirty())
   {
+    setEnabled(false);
     mCanvas->render();
+    setEnabled(true);
   }
   p->drawPixmap(0,0, mPixmap);
 }

Original file line number	Diff line number	Diff line change
`@@ -34,7 +34,9 @@ void QgsMapCanvasMap::paint(QPainter* p, const QStyleOptionGraphicsItem*, QWidge`
`34`	`34`	`{`
`35`	`35`	`if (mCanvas->isDirty())`
`36`	`36`	`{`
	`37`	`+ setEnabled(false);`
`37`	`38`	`mCanvas->render();`
	`39`	`+ setEnabled(true);`
`38`	`40`	`}`
`39`	`41`	`p->drawPixmap(0,0, mPixmap);`
`40`	`42`	`}`