Optimize mainwindow Example code, ensure that only one style is selected at...

XieLong

2024-09-15 cd352b186c2881af9342cf76693500ce3a48be8a

Optimize mainwindow Example code, ensure that only one style is selected at a time. (#137)

 examples/mainwindow/mainwindow.cpp

@@ -143,7 +143,7 @@

    // 2. Construct your title bar
    auto menuBar = [this]() {
        auto menuBar = new QMenuBar();
        auto menuBar = new QMenuBar(this);

        // Virtual menu
        auto file = new QMenu(tr("File(&F)"), menuBar);
@@ -167,44 +167,38 @@

#ifdef Q_OS_WIN
        auto dwmBlurAction = new QAction(tr("Enable DWM blur"), menuBar);
        dwmBlurAction->setData(QStringLiteral("dwm-blur"));
        dwmBlurAction->setCheckable(true);
        connect(dwmBlurAction, &QAction::toggled, this, [this](bool checked) {
            if (!windowAgent->setWindowAttribute(QStringLiteral("dwm-blur"), checked)) {
                return;
            }
            setProperty("custom-style", checked);
            style()->polish(this);
        });

        auto acrylicAction = new QAction(tr("Enable acrylic material"), menuBar);
        acrylicAction->setData(QStringLiteral("acrylic-material"));
        acrylicAction->setCheckable(true);
        connect(acrylicAction, &QAction::toggled, this, [this](bool checked) {
            if (!windowAgent->setWindowAttribute(QStringLiteral("acrylic-material"), true)) {
                return;
            }
            setProperty("custom-style", checked);
            style()->polish(this);
        });

        auto micaAction = new QAction(tr("Enable mica"), menuBar);
        micaAction->setData(QStringLiteral("mica"));
        micaAction->setCheckable(true);
        connect(micaAction, &QAction::toggled, this, [this](bool checked) {
            if (!windowAgent->setWindowAttribute(QStringLiteral("mica"), checked)) {
                return;

        auto micaAltAction = new QAction(tr("Enable mica alt"), menuBar);
        micaAltAction->setData(QStringLiteral("mica-alt"));
        micaAltAction->setCheckable(true);

        auto winStyleGroup = new QActionGroup(menuBar);
        // At most one action can be checked at any one time. The actions can also be all unchecked.
        winStyleGroup->setExclusionPolicy(QActionGroup::ExclusionPolicy::ExclusiveOptional);
        winStyleGroup->addAction(dwmBlurAction);
        winStyleGroup->addAction(acrylicAction);
        winStyleGroup->addAction(micaAction);
        winStyleGroup->addAction(micaAltAction);
        connect(winStyleGroup, &QActionGroup::triggered, this, [this, winStyleGroup](QAction *action) {
            // Unset all custom style attributes first, otherwise the style will not display correctly
            for (auto _act : winStyleGroup->actions()) {
                windowAgent->setWindowAttribute(_act->data().toString(), false);
            }
            setProperty("custom-style", checked);
            windowAgent->setWindowAttribute(action->data().toString(), action->isChecked());
            setProperty("custom-style", action->isChecked());
            style()->polish(this);
        });

        auto micaAltAction = new QAction(tr("Enable mica alt"), menuBar);
        micaAltAction->setCheckable(true);
        connect(micaAltAction, &QAction::toggled, this, [this](bool checked) {
            if (!windowAgent->setWindowAttribute(QStringLiteral("mica-alt"), checked)) {
                return;
            }
            setProperty("custom-style", checked);
            style()->polish(this);
        });
#elif defined(Q_OS_MAC)
        auto darkBlurAction = new QAction(tr("Dark blur"), menuBar);
        darkBlurAction->setCheckable(true);