Bug #1202761 (Off centre zoom )

common/drawpanel.cpp

@@ -881,6 +881,9 @@ void EDA_DRAW_PANEL::OnMouseWheel( wxMouseEvent& event )
     wxCommandEvent cmd( wxEVT_COMMAND_MENU_SELECTED );
     cmd.SetEventObject( this );
 
+    bool offCenterReq = event.ControlDown() && event.ShiftDown();
+    offCenterReq = offCenterReq || m_enableZoomNoCenter;
+
     // This is a zoom in or out command
     if( event.GetWheelRotation() > 0 )
     {
@@ -888,8 +891,7 @@ void EDA_DRAW_PANEL::OnMouseWheel( wxMouseEvent& event )
             cmd.SetId( ID_PAN_UP );
         else if( event.ControlDown() && !event.ShiftDown() )
             cmd.SetId( ID_PAN_LEFT );
-        else if( (event.ControlDown() && event.ShiftDown() )
-                 || m_enableZoomNoCenter)
+        else if( offCenterReq )
             cmd.SetId( ID_OFFCENTER_ZOOM_IN );
         else
             cmd.SetId( ID_POPUP_ZOOM_IN );
@@ -900,7 +902,7 @@ void EDA_DRAW_PANEL::OnMouseWheel( wxMouseEvent& event )
             cmd.SetId( ID_PAN_DOWN );
         else if( event.ControlDown() && !event.ShiftDown() )
             cmd.SetId( ID_PAN_RIGHT );
-        else if( event.AltDown() || m_enableZoomNoCenter)
+        else if( offCenterReq )
             cmd.SetId( ID_OFFCENTER_ZOOM_OUT );
         else
             cmd.SetId( ID_POPUP_ZOOM_OUT );