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Trigger less QEvent::ApplicationPaletteChange

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The event seems to be very expensive on certain platform theme plugins.

Fixes #1639
This commit is contained in:
q234rty 2023-12-16 18:04:15 +08:00
parent 021eed8388
commit d372158dde
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2 changed files with 8 additions and 0 deletions
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5
src/MainWindow.cpp
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@ -201,9 +201,14 @@ NhekoFixupPaletteEventFilter::eventFilter(QObject *obj, QEvent *event)
// reason?!? // reason?!?
if (event->type() == QEvent::ChildAdded && if (event->type() == QEvent::ChildAdded &&
obj->metaObject()->className() == QStringLiteral("QQuickRootItem")) { obj->metaObject()->className() == QStringLiteral("QQuickRootItem")) {
QSet<QWindow *> newWindows;
for (const auto window : QGuiApplication::topLevelWindows()) { for (const auto window : QGuiApplication::topLevelWindows()) {
newWindows.insert(window);
if (m_postedWindows.contains(window))
continue;
QGuiApplication::postEvent(window, new QEvent(QEvent::ApplicationPaletteChange)); QGuiApplication::postEvent(window, new QEvent(QEvent::ApplicationPaletteChange));
} }
m_postedWindows.swap(newWindows);
} }
return false; return false;
} }

3
src/MainWindow.h
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@ -45,6 +45,9 @@ public:
} }
bool eventFilter(QObject *obj, QEvent *event) override; bool eventFilter(QObject *obj, QEvent *event) override;
private:
QSet<QWindow *> m_postedWindows;
}; };
class MainWindow : public QQuickView class MainWindow : public QQuickView