Widget gallery example: set color scheme before constructing UI
On macOS, we see unexplained white flashes of the UI when overriding the scheme in the widget's constructor. This only happens when running the bundle, but not when running the executable. Work around that problem by setting the scheme immediately after constructing QApplication. Pick-to: 6.8 Task-number: QTBUG-126248 Change-Id: I4a5fe467d628fca5e52e1e36f43af8143239c7fa Reviewed-by: Doris Verria <doris.verria@qt.io> Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
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@ -9,6 +9,7 @@
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int main(int argc, char *argv[])
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{
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QApplication app(argc, argv);
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app.styleHints()->setColorScheme(Qt::ColorScheme::Dark);
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WidgetGallery gallery;
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gallery.show();
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return QCoreApplication::exec();
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@ -140,9 +140,7 @@ WidgetGallery::WidgetGallery(QWidget *parent)
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colorSchemeComboBox->addItem(tr("Auto"));
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colorSchemeComboBox->addItem(tr("Light"));
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colorSchemeComboBox->addItem(tr("Dark"));
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// override the color scheme to dark
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qApp->styleHints()->setColorScheme(Qt::ColorScheme::Dark);
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colorSchemeComboBox->setCurrentIndex(2);
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colorSchemeComboBox->setCurrentIndex(static_cast<int>(qApp->styleHints()->colorScheme()));
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auto colorSchemeLabel = createWidget1<QLabel>(tr("&Color Scheme:"), "colorSchemeLabel");
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colorSchemeLabel->setBuddy(colorSchemeComboBox);
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