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authorRichard Moe Gustavsen <richard.gustavsen@digia.com>2012-11-30 12:39:23 +0100
committerThe Qt Project <gerrit-noreply@qt-project.org>2012-11-30 18:28:14 +0100
commit1cce35472a84aa81cec2ac42a6e0843ef92af267 (patch)
tree6c24c6b51e857539273dff9fef8e71584611a9d3 /doc
parent27a945dccd7dbe6449427f85c8ebdca7b0f654f8 (diff)
QPA: update backingstore also when moving QWindows
When moving QMdiSubWindows that contains native widgets (e.g QGLWidget) inside a QMdiArea, garbage is drawn to the screen. The reason is that since we use native QWindow backed widgets, QPA will assume that it does not need to update/scroll the backingstore. But since the backingstore can be shared among several windows, we need to do this to ensure that exposed areas behind the moved QWindow will be updated. Change-Id: I35f4d4069a73ab6cd6d610e25c176c752789a927 Task-number: QTBUG-26162 Reviewed-by: Samuel Rødal <samuel.rodal@digia.com>
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