Fix for crash when removing a drawing composer map

git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@11395 c8812cc2-4d05-0410-92ff-de0c093fc19c

Author: mhugent

src/gui/qgscomposerview.cpp

@@ -310,8 +310,12 @@ void QgsComposerView::keyPressEvent( QKeyEvent * e )
   {
     for ( ; itemIt != composerItemList.end(); ++itemIt )
     {
-      composition()->removeItem( *itemIt );
-      emit itemRemoved( *itemIt );
+      QgsComposerMap* map = dynamic_cast<QgsComposerMap*>( *itemIt );
+      if ( !map || !map->isDrawing() ) //don't delete a composer map while it draws
+      {
+        composition()->removeItem( *itemIt );
+        emit itemRemoved( *itemIt );
+      }
     }
   }