Changed selection behaviour: Current selection will not be removed

_only_ if Ctrl is down when clicking.
Untabified.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_2_BRANCH@7386 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/generic/grid.cpp

@@ -4505,7 +4505,7 @@ void wxGrid::ProcessGridCellMouseEvent( wxMouseEvent& event )
                        coords.GetCol(),
                        event ) )
         {
-            if ( !event.ShiftDown() && !event.ControlDown() )
+            if ( !event.ControlDown() )
                 ClearSelection();
             if ( event.ShiftDown() )
             {