and others.
MouseMoved() no longer passes an invalid position to SetSelection() (avoiding
the selection to be changed unexpectedly). It will now also make sure that the
position hovered by the mouse is visible.
PositionAt() no longer skips points that are not inside the valid bounds (even
the wrong bounds), but clips the point to be inside of it.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@6636 a95241bf-73f2-0310-859d-f6bbb57e9c96