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Test QImage instead of QPixmap for render.

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Trying to fix a strange crash inside QWidget::render().
This commit is contained in:
John Preston 2017-05-11 19:29:57 +03:00
parent 8bb4d31409
commit ba1f1af83e
1 changed files with 5 additions and 4 deletions
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9
Telegram/SourceFiles/dialogswidget.cpp
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@ -2387,10 +2387,11 @@ void DialogsWidget::startWidthAnimation() {
auto grabGeometry = QRect(scrollGeometry.x(), scrollGeometry.y(), st::dialogsWidthMin, scrollGeometry.height());
_scroll->setGeometry(grabGeometry);
myEnsureResized(_scroll);
_widthAnimationCache = QPixmap(grabGeometry.size() * cIntRetinaFactor());
_widthAnimationCache.setDevicePixelRatio(cRetinaFactor());
_widthAnimationCache.fill(Qt::transparent);
_scroll->render(&_widthAnimationCache, QPoint(0, 0), QRect(QPoint(0, 0), grabGeometry.size()), QWidget::DrawChildren | QWidget::IgnoreMask);
auto image = QImage(grabGeometry.size() * cIntRetinaFactor(), QImage::Format_ARGB32_Premultiplied);
image.setDevicePixelRatio(cRetinaFactor());
image.fill(Qt::transparent);
_scroll->render(&image, QPoint(0, 0), QRect(QPoint(0, 0), grabGeometry.size()), QWidget::DrawChildren | QWidget::IgnoreMask);
_widthAnimationCache = App::pixmapFromImageInPlace(std::move(image));
_scroll->setGeometry(scrollGeometry);
_scroll->hide();
}