14:52:16ikrabbeI understand my use case better now. Possibly I can handle this situation by layout functions or space-requirement updates.
14:56:00ikrabbeI need a way to fit the inner application pane within the outline. So for the scrollbar pane of width 555, as in the example image, the outline pane should reduce the bounding box of the application pane actually.
14:56:46ikrabbeSo the outline pane should have the width 535 and the application pane a width of 485.