diff --git a/Code/Mantid/MantidPlot/src/Graph.cpp b/Code/Mantid/MantidPlot/src/Graph.cpp
index af1b3b6012e4..8780997cf7ca 100644
--- a/Code/Mantid/MantidPlot/src/Graph.cpp
+++ b/Code/Mantid/MantidPlot/src/Graph.cpp
@@ -157,9 +157,9 @@ Graph::Graph(int x, int y, int width, int height, QWidget* parent, Qt::WFlags f)
   setAttribute(Qt::WA_DeleteOnClose, false);
 
   d_plot = new Plot(width, height, this);
-  connect (d_plot,SIGNAL(dragMousePress(QPoint)), this, SIGNAL(dragMousePress(QPoint)));
-  connect (d_plot,SIGNAL(dragMouseRelease(QPoint)), this, SIGNAL(dragMouseRelease(QPoint)));
-  connect (d_plot,SIGNAL(dragMouseMove(QPoint)), this, SIGNAL(dragMouseMove(QPoint)));
+  connect (d_plot,SIGNAL(dragMousePress(QPoint)), this, SLOT(slotDragMousePress(QPoint)));
+  connect (d_plot,SIGNAL(dragMouseRelease(QPoint)), this, SLOT(slotDragMouseRelease(QPoint)));
+  connect (d_plot,SIGNAL(dragMouseMove(QPoint)), this, SLOT(slotDragMouseMove(QPoint)));
 
   cp = new CanvasPicker(this);
 
@@ -6115,3 +6115,34 @@ void Graph::checkValuesInAxisRange(MantidMatrixCurve* mc)
     d_plot->setAxisScale(QwtPlot::Axis(QwtPlot::xBottom), xMin, xMax);
   }
 }
+
+/**
+  * Process dragMousePress signal from d_plot.
+  * @param pos :: Mouse position.
+  */
+void Graph::slotDragMousePress(QPoint pos)
+{
+  if ( hasActiveTool() ) return;
+  emit dragMousePress(pos);
+}
+
+/**
+  * Process dragMouseRelease signal from d_plot.
+  * @param pos :: Mouse position.
+  */
+void Graph::slotDragMouseRelease(QPoint pos)
+{
+  if ( hasActiveTool() ) return;
+  emit dragMouseRelease(pos);
+}
+
+/**
+  * Process dragMouseMove signal from d_plot.
+  * @param pos :: Mouse position.
+  */
+void Graph::slotDragMouseMove(QPoint pos)
+{
+  if ( hasActiveTool() ) return;
+  emit dragMouseMove(pos);
+}
+
diff --git a/Code/Mantid/MantidPlot/src/Graph.h b/Code/Mantid/MantidPlot/src/Graph.h
index 26032a4a6546..7ea336593f21 100644
--- a/Code/Mantid/MantidPlot/src/Graph.h
+++ b/Code/Mantid/MantidPlot/src/Graph.h
@@ -809,6 +809,10 @@ public slots:
   
 private slots:
 
+  void slotDragMousePress(QPoint);
+  void slotDragMouseRelease(QPoint);
+  void slotDragMouseMove(QPoint);
+
 private:
   //! Finds bounding interval of the plot data.
   QwtDoubleInterval axisBoundingInterval(int axis);