(if x == oldx, skipped processing of y direction) git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_2_BRANCH@6912 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
(if x == oldx, skipped processing of y direction) git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_2_BRANCH@6912 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775