* BUG: Fix the child control clipping routine.
* BUG: Take control frame width into account when clipping.
* OPT: Use TControl class instead of Object class when possible.
[GB.QT4]
* BUG: Automatic clipping of painted DrawingArea should work correctly now.
git-svn-id: svn://localhost/gambas/trunk@2725 867c0c6c-44f3-4631-809d-bfa615b0a4ec