15 #ifndef QGSMASKSOURCESELECTIONWIDGET_H 
   16 #define QGSMASKSOURCESELECTIONWIDGET_H 
   27 class QTreeWidgetItem;
 
   48       bool isLabeling = 
false;
 
   61     QList<MaskSource> selection() 
const;
 
   64     void setSelection( 
const QList<MaskSource> &sel );
 
   72     QHash<QgsSymbolLayerReference, QTreeWidgetItem *> mItems;
 
We may need stable references to symbol layers, when pointers to symbol layers is not usable (when a ...