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xcb: rely on QRegion::operator| to handle empty regions 

There is no need to check for it explicitly.

Change-Id: I66958bf1ff4539ee75fec635c96f056524da8ddb
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
bb10
Gatis Paeglis 2017-07-14 10:27:12 +02:00
parent caa4ead1b9
commit 5dc8c4286e
1 changed files with 1 additions and 5 deletions
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6
src/plugins/platforms/xcb/qxcbwindow.cpp
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@ -1978,11 +1978,7 @@ void QXcbWindow::handleExposeEvent(const xcb_expose_event_t *event)
{
QRect rect(event->x, event->y, event->width, event->height);
if (m_exposeRegion.isEmpty())
m_exposeRegion = rect;
else
m_exposeRegion |= rect;
m_exposeRegion |= rect;
bool pending = compressExposeEvent(m_exposeRegion);
// if count is non-zero there are more expose events pending