fix crash

jef-n · jef-n · commit 5774bc408bc7 · 2014-05-15T19:05:51.000+02:00
diff --git a/src/core/symbology-ng/qgssymbolv2.cpp b/src/core/symbology-ng/qgssymbolv2.cpp
@@ -89,6 +89,8 @@ QgsMapUnitScale QgsSymbolV2::mapUnitScale() const
   }
 
   QgsSymbolLayerV2List::const_iterator it = mLayers.constBegin();
+  if( it == mLayers.constEnd() )
+    return QgsMapUnitScale();
 
   QgsMapUnitScale scale = ( *it )->mapUnitScale();
   ++it;

Original file line number	Diff line number	Diff line change
`@@ -89,6 +89,8 @@ QgsMapUnitScale QgsSymbolV2::mapUnitScale() const`
`89`	`89`	`}`
`90`	`90`
`91`	`91`	`QgsSymbolLayerV2List::const_iterator it = mLayers.constBegin();`
	`92`	`+ if( it == mLayers.constEnd() )`
	`93`	`+ return QgsMapUnitScale();`
`92`	`94`
`93`	`95`	`QgsMapUnitScale scale = ( *it )->mapUnitScale();`
`94`	`96`	`++it;`