Use brilliant workaround to show Windows 10 top border

Sine Striker

2023-12-24 46285db399f75154ad6c451e12f2cae2e59ace25

 examples/mainwindow/mainwindow.cpp

@@ -4,10 +4,17 @@
#include <QtCore/QFile>
#include <QtCore/QTime>
#include <QtCore/QTimer>
#include <QtGui/QPainter>
#include <QtWidgets/QApplication>
#include <QtWidgets/QStyle>
#include <QtWidgets/QPushButton>
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
#  include <QtGui/QActionGroup>
#else
#  include <QtWidgets/QActionGroup>
#endif

#include <QWKCore/styleagent.h>
#include <QWKWidgets/widgetwindowagent.h>

#include <widgetframe/windowbar.h>
@@ -30,6 +37,7 @@

MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) {
    installWindowAgent();
    installStyleAgent();

    auto clockWidget = new ClockWidget();
    clockWidget->setObjectName(QStringLiteral("clock-widget"));
@@ -104,11 +112,15 @@

void MainWindow::installWindowAgent() {
    // 1. Setup window agent
    auto agent = new QWK::WidgetWindowAgent(this);
    agent->setup(this);
    windowAgent = new QWK::WidgetWindowAgent(this);
    windowAgent->setup(this);

#ifdef Q_OS_WIN
    windowAgent->setWindowAttribute(QStringLiteral("dark-mode"), true);
#endif

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

        // Virtual menu
@@ -122,7 +134,7 @@
        edit->addAction(new QAction(tr("Redo(&R)"), menuBar));

        // Theme action
        auto darkAction = new QAction(tr("Dark Theme"), menuBar);
        auto darkAction = new QAction(tr("Enable dark theme"), menuBar);
        darkAction->setCheckable(true);
        connect(darkAction, &QAction::triggered, this, [this](bool checked) {
            loadStyleSheet(checked ? Dark : Light); //
@@ -131,19 +143,64 @@
            darkAction->setChecked(currentTheme == Dark); //
        });

        // Agent action
        auto framelessOnAction = new QAction(tr("Enable Frameless"), menuBar);
        framelessOnAction->setCheckable(true);
        framelessOnAction->setChecked(true);
        connect(framelessOnAction, &QAction::triggered, agent, &QWK::WindowAgentBase::setEnabled);
        connect(agent, &QWK::WindowAgentBase::enabledChanged, framelessOnAction,
                &QAction::setChecked);
#ifdef Q_OS_WIN
        auto dwmBlurAction = new QAction(tr("Enable DWM blur"), menuBar);
        dwmBlurAction->setCheckable(true);
        connect(dwmBlurAction, &QAction::triggered, 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->setCheckable(true);
        connect(acrylicAction, &QAction::triggered, 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->setCheckable(true);
        connect(micaAction, &QAction::triggered, this, [this](bool checked) {
            if (!windowAgent->setWindowAttribute(QStringLiteral("mica"), checked)) {
                return;
            }
            setProperty("custom-style", checked);
            style()->polish(this);
        });

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

        auto winStyleGroup = new QActionGroup(menuBar);
        winStyleGroup->addAction(dwmBlurAction);
        winStyleGroup->addAction(acrylicAction);
        winStyleGroup->addAction(micaAction);
        winStyleGroup->addAction(micaAltAction);
#endif

        // Real menu
        auto settings = new QMenu(tr("Settings(&S)"), menuBar);
        settings->addAction(darkAction);
#ifdef Q_OS_WIN
        settings->addSeparator();
        settings->addAction(framelessOnAction);
        settings->addAction(dwmBlurAction);
        settings->addAction(acrylicAction);
        settings->addAction(micaAction);
        settings->addAction(micaAltAction);
#endif

        menuBar->addMenu(file);
        menuBar->addMenu(edit);
@@ -189,28 +246,28 @@
    windowBar->setTitleLabel(titleLabel);
    windowBar->setHostWidget(this);

    agent->setTitleBar(windowBar);
    windowAgent->setTitleBar(windowBar);
#ifndef Q_OS_MAC
    agent->setSystemButton(QWK::WindowAgentBase::WindowIcon, iconButton);
    agent->setSystemButton(QWK::WindowAgentBase::Minimize, minButton);
    agent->setSystemButton(QWK::WindowAgentBase::Maximize, maxButton);
    agent->setSystemButton(QWK::WindowAgentBase::Close, closeButton);
    windowAgent->setSystemButton(QWK::WindowAgentBase::WindowIcon, iconButton);
    windowAgent->setSystemButton(QWK::WindowAgentBase::Minimize, minButton);
    windowAgent->setSystemButton(QWK::WindowAgentBase::Maximize, maxButton);
    windowAgent->setSystemButton(QWK::WindowAgentBase::Close, closeButton);
#endif
    agent->setHitTestVisible(menuBar, true);
    windowAgent->setHitTestVisible(menuBar, true);

    setMenuWidget(windowBar);

    // 3. Adds simulated mouse events to the title bar buttons
#ifdef Q_OS_WINDOWS
    // Emulate Window system menu button behaviors
    connect(iconButton, &QAbstractButton::clicked, agent, [iconButton, agent] {
    connect(iconButton, &QAbstractButton::clicked, windowAgent, [this, iconButton] {
        iconButton->setProperty("double-click-close", false);

        // Pick a suitable time threshold
        QTimer::singleShot(75, agent, [iconButton, agent]() {
        QTimer::singleShot(75, windowAgent, [this, iconButton]() {
            if (iconButton->property("double-click-close").toBool())
                return;
            agent->showSystemMenu(iconButton->mapToGlobal(QPoint{0, iconButton->height()}));
            windowAgent->showSystemMenu(iconButton->mapToGlobal(QPoint{0, iconButton->height()}));
        });
    });
    connect(iconButton, &QWK::WindowButton::doubleClicked, this, [iconButton, this]() {
@@ -237,14 +294,19 @@
#endif
}

void MainWindow::installStyleAgent() {
    styleAgent = new QWK::StyleAgent(this);
}

void MainWindow::loadStyleSheet(Theme theme) {
    if (!styleSheet().isEmpty() && theme == currentTheme)
        return;
    currentTheme = theme;

    if (QFile qss(theme == Dark ? QStringLiteral(":/dark-style.qss")
                                : QStringLiteral(":/light-style.qss"));
        qss.open(QIODevice::ReadOnly | QIODevice::Text)) {
        setStyleSheet(QString::fromUtf8(qss.readAll()));
        Q_EMIT themeChanged();
    }
}
}