Allow that not all mouse events of a map tool must be implemented.

git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@5149 c8812cc2-4d05-0410-92ff-de0c093fc19c
qgis · Apr 3, 2006 · 22105f870ff99b49d1ee57e1dafcb70cbeb78a6d · 22105f8
1 parent 2435bb7
commit 22105f870ff99b49d1ee57e1dafcb70cbeb78a6d
Unified Split

Showing with 3 additions and 3 deletions.

+3 −3 src/gui/qgsmaptool.h
diff --git a/src/gui/qgsmaptool.h b/src/gui/qgsmaptool.h
@@ -35,13 +35,13 @@ class QgsMapTool
     virtual ~QgsMapTool();
 
     //! Mouse move event for overriding
-    virtual void canvasMoveEvent(QMouseEvent * e) = 0;
+    virtual void canvasMoveEvent(QMouseEvent * e) { }
 
     //! Mouse press event for overriding
-    virtual void canvasPressEvent(QMouseEvent * e) = 0;
+    virtual void canvasPressEvent(QMouseEvent * e) { }
 
     //! Mouse release event for overriding
-    virtual void canvasReleaseEvent(QMouseEvent * e) = 0;
+    virtual void canvasReleaseEvent(QMouseEvent * e) { }
 
     //! Called when rendering has finished
     virtual void renderComplete() {}