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macOS: Fix tab button rendering issue

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This fixes rendering artifacts for the specific case of the first
unselected vertical (west) tab button in a tab bar. The popup button
gets drawn at the beginning of the tab bar instead of translated to the
actual location of the tab.

Fixes: QTBUG-76385
Change-Id: I17112c56eabacf34e470314d4cc6b263ba632ec1
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
This commit is contained in:
Jason Haslam 2019-06-18 11:51:38 -06:00
parent a3dec41cf1
commit 4d9375020c
1 changed files with 1 additions and 0 deletions
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src/plugins/styles/mac/qmacstyle_mac.mm
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@ -3944,6 +3944,7 @@ void QMacStyle::drawControl(ControlElement ce, const QStyleOption *opt, QPainter
CGContextScaleCTM(ctx, -1, 1);
CGContextTranslateCTM(ctx, -frameRect.left(), 0);
} else if (tabDirection == QMacStylePrivate::West && tp == QStyleOptionTab::Beginning) {
CGContextTranslateCTM(ctx, 0, opt->rect.top());
CGContextScaleCTM(ctx, 1, -1);
CGContextTranslateCTM(ctx, 0, -frameRect.right());
} else if (tabDirection == QMacStylePrivate::East && tp == QStyleOptionTab::End) {