[Digikam-devel] [Bug 116148] Auto-scrolling when selecting large area

[Marcel Wiesweg]

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http://bugs.kde.org/show_bug.cgi?id=116148         




------- Additional Comments From marcel.wiesweg gmx de  2007-04-04 20:28 -------
The problem is something like this:
When autoscrolling to a new area, this area is not yet drawn, an update is scheduled by the ensureVisible(). The rubber is drawn immediately.
Then in the drawContents method, the new area is drawn, and the rubberband is removed.
In the next mouseMove event, drawRubber is called to remove the rubber in the old position, but the rubber is already removed by repainting, so it is not removed, but actually drawn at the old position in the first drawRubber call.

I tried to solve it by calling drawRubber before and after painting in drawContents, if (d->rubber && d->pressedMoved && d->pressedMoving && d->rubber->intersects(pr)), but this solves it only when scrolling downwards...strange.