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Cocoa: Make grabWindow work on retina displays. 

Not taking the devicePixelRatio into account causes
us to either grab a quarter of the screen or do a
low-resolution grab.

Change-Id: Ie6b681e3a089f17b63554c8158bb471a14963d7a
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@digia.com>
bb10
Morten Johan Sørvig 2013-02-25 14:14:47 +01:00 committed by The Qt Project
parent e37d579183
commit 47e12eafdd
1 changed files with 3 additions and 3 deletions
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6
src/plugins/platforms/cocoa/qcocoaintegration.mm
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@ -170,13 +170,13 @@ QPixmap QCocoaScreen::grabWindow(WId window, int x, int y, int width, int height
windowSize.setHeight(windowRect.height());
}
QPixmap windowPixmap(windowSize);
QPixmap windowPixmap(windowSize * devicePixelRatio());
windowPixmap.fill(Qt::transparent);
for (uint i = 0; i < displayCount; ++i) {
const CGRect bounds = CGDisplayBounds(displays[i]);
int w = (width < 0 ? bounds.size.width : width);
int h = (height < 0 ? bounds.size.height : height);
int w = (width < 0 ? bounds.size.width : width) * devicePixelRatio();
int h = (height < 0 ? bounds.size.height : height) * devicePixelRatio();
QRect displayRect = QRect(x, y, w, h);
QCFType<CGImageRef> image = CGDisplayCreateImageForRect(displays[i],
CGRectMake(displayRect.x(), displayRect.y(), displayRect.width(), displayRect.height()));