app/newClipping/Layer.cpp

430 		// done rebuilding regions, now copy common parts and redraw regions that became visible

432 		// include the actual and the old fullVisible regions. later, we'll exclude the common parts.

436 		// offset to layer's new location so that we can calculate the common region.

443 		// fullVisible, we'll have the common region which can be copied using HW acceleration.

475 		// compute the common region. we'll use HW acc to copy this to the new location.

479 		// common region goes back to its original location. then, by excluding

558 	BRegion common;

559 	get_user_regions(common);

560 	common.IntersectWith(&invalid);

564 	if (!common.CountRects() > 0)

568 	common.IntersectWith(&parentLocalVisible);

575 	fFullVisible.Include(&common);

579 	BRegion unalteredVisible(common);

580 	bool altered = alter_visible_for_children(common);

587 			lay->rebuild_visible_regions(invalid, common, lay->BottomChild());

590 		common.Exclude(&lay->fFullVisible);

602 		fVisible.Include(&common);