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Tim Janik authored
Tue Jan 12 13:47:07 1999 Tim Janik <timj@gtk.org> * reworked the redrawing heuristics somewhat, this fixed a bunch of existing redrawing problems and majorly reduces overall redrawing needs during normal operation. basically we now only queue redraws when neccessary and much rely on the draw_area coalescing code in gtkwidget.c to optimize the queued portions. widgets will now upon reallocation only get redrawed if their allocation has changed. upon hide/show only the area allocated by the child will be queued for the parent, this has the side effect that parents which change their appearance in dependance on the numer of visible children have to keep track of their children's visiblity and eventually fully redraw themselves. this is a minor constrain with great benefits in terms of redraw reduction, and only got triggered by the noteb...
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