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Merge pull request #12102 from Kolcha/hidpi

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Delegate GUI scaling work to Qt
This commit is contained in:
Mike Tzou 2020-03-07 10:05:21 +08:00 committed by GitHub
commit 095ef67e30
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2 changed files with 11 additions and 0 deletions
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6
src/app/main.cpp
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@ -133,6 +133,12 @@ int main(int argc, char *argv[])
// We must save it here because QApplication constructor may change it
bool isOneArg = (argc == 2);
#if !defined(DISABLE_GUI) && (QT_VERSION >= QT_VERSION_CHECK(5, 14, 0))
// Attribute Qt::AA_EnableHighDpiScaling must be set before QCoreApplication is created
if (qgetenv("QT_ENABLE_HIGHDPI_SCALING").isEmpty() && qgetenv("QT_AUTO_SCREEN_SCALE_FACTOR").isEmpty())
Application::setAttribute(Qt::AA_EnableHighDpiScaling, true);
#endif
try {
// Create Application
const QString appId = QLatin1String("qBittorrent-") + Utils::Misc::getUserIDString();

5
src/gui/utils.cpp
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@ -62,6 +62,10 @@ void Utils::Gui::resize(QWidget *widget, const QSize &newSize)
qreal Utils::Gui::screenScalingFactor(const QWidget *widget)
{
#if (QT_VERSION >= QT_VERSION_CHECK(5, 14, 0))
Q_UNUSED(widget);
return 1;
#else
if (!widget)
return 1;
@ -77,6 +81,7 @@ qreal Utils::Gui::screenScalingFactor(const QWidget *widget)
#else
return widget->devicePixelRatioF();
#endif // Q_OS_WIN
#endif // QT_VERSION
}
QPixmap Utils::Gui::scaledPixmap(const QIcon &icon, const QWidget *widget, const int height)