fix for composer map item's background when non-opaque

This commit is contained in:
olivierdalang 2013-01-29 11:37:58 +00:00
parent ec0d944d69
commit 45a5fe720d

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@ -227,7 +227,8 @@ void QgsComposerMap::cache( void )
double forcedWidthScaleFactor = w / requestExtent.width() / mapUnitsToMM();
mCacheImage = QImage( w, h, QImage::Format_ARGB32 );
mCacheImage.fill( brush().color().rgb() ); //consider the item background brush
mCacheImage.fill( QColor(255,255,255,0).rgba() ); // the background is drawn by composerItem, but we still need to start with that empty fill to avoid artifacts
double mapUnitsPerPixel = mExtent.width() / w;
// WARNING: ymax in QgsMapToPixel is device height!!!