add support for maptool doubleclick events

git-svn-id: http://svn.osgeo.org/qgis/trunk@8542 c8812cc2-4d05-0410-92ff-de0c093fc19c

python/gui/qgsmaptool.sip

@@ -33,6 +33,9 @@ class QgsMapTool : QObject
     //! Mouse move event for overriding
     virtual void canvasMoveEvent(QMouseEvent * e);
 
+    //! Mouse double click event for overriding
+    virtual void canvasDoubleClickEvent(QMouseEvent * e);
+
     //! Mouse press event for overriding
     virtual void canvasPressEvent(QMouseEvent * e);
 

src/gui/qgsmapcanvas.cpp

@@ -703,6 +703,19 @@ void QgsMapCanvas::keyReleaseEvent(QKeyEvent * e)
 } //keyReleaseEvent()
 
 
+void QgsMapCanvas::mouseDoubleClickEvent(QMouseEvent * e)
+{
+  if(mDrawing)
+  {
+    return;
+  }
+
+  // call handler of current map tool
+  if (mMapTool)
+     mMapTool->canvasDoubleClickEvent(e);  
+} // mouseDoubleClickEvent
+
+
 void QgsMapCanvas::mousePressEvent(QMouseEvent * e)
 {
   if(mDrawing)
@@ -900,7 +913,6 @@ void QgsMapCanvas::zoomWithCenter(int x, int y, bool zoomIn)
   refresh();
 }
 
-
 void QgsMapCanvas::mouseMoveEvent(QMouseEvent * e)
 {
   if(mDrawing)

src/gui/qgsmapcanvas.h

@@ -307,6 +307,9 @@ protected:
     //! Overridden key release event
     void keyReleaseEvent(QKeyEvent * e);
 
+    //! Overridden mouse double click event
+    void mouseDoubleClickEvent(QMouseEvent * e);
+
     //! Overridden mouse move event
     void mouseMoveEvent(QMouseEvent * e);
 

src/gui/qgsmaptool.cpp

@@ -116,6 +116,10 @@ void QgsMapTool::canvasMoveEvent(QMouseEvent *)
 {
 }
 
+void QgsMapTool::canvasDoubleClickEvent(QMouseEvent *)
+{
+}
+
 void QgsMapTool::canvasPressEvent(QMouseEvent *)
 {
 }

src/gui/qgsmaptool.h

@@ -41,6 +41,9 @@ class GUI_EXPORT QgsMapTool : public QObject
     //! Mouse move event for overriding. Default implementation does nothing.
     virtual void canvasMoveEvent(QMouseEvent * e);
 
+    //! Mouse double click event for overriding. Default implementation does nothing.
+    virtual void canvasDoubleClickEvent(QMouseEvent * e);
+
     //! Mouse press event for overriding. Default implementation does nothing.
     virtual void canvasPressEvent(QMouseEvent * e);