fixed #2711: avoid jumping items in legend

brushtyler · brushtyler · commit 8d2c1f84c7dc · 2010-06-04T01:33:41.000Z
git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@13640 c8812cc2-4d05-0410-92ff-de0c093fc19c
diff --git a/src/app/legend/qgslegend.cpp b/src/app/legend/qgslegend.cpp
@@ -377,6 +377,14 @@ void QgsLegend::mouseReleaseEvent( QMouseEvent * e )
     checkLayerOrderUpdate();
     return;
   }
+  
+  // make sure you are able to drag the item
+  QgsLegendItem::DRAG_ACTION action = dest->accept( origin );  
+  if ( action == QgsLegendItem::NO_ACTION )
+  {
+    QgsDebugMsg( "Drag NO_ACTION" );
+    return;
+  }
 
   {
     // Do the actual move here.

Original file line number	Diff line number	Diff line change
`@@ -377,6 +377,14 @@ void QgsLegend::mouseReleaseEvent( QMouseEvent * e )`
`377`	`377`	`checkLayerOrderUpdate();`
`378`	`378`	`return;`
`379`	`379`	`}`
	`380`	`+`
	`381`	`+ // make sure you are able to drag the item`
	`382`	`+ QgsLegendItem::DRAG_ACTION action = dest->accept( origin );`
	`383`	`+ if ( action == QgsLegendItem::NO_ACTION )`
	`384`	`+ {`
	`385`	`+ QgsDebugMsg( "Drag NO_ACTION" );`
	`386`	`+ return;`
	`387`	`+ }`
`380`	`388`
`381`	`389`	`{`
`382`	`390`	`// Do the actual move here.`