Fix mainwindow example

Sine Striker

2024-05-27 62d9c195f4fa77af10b4ace59b4c3353a31f417a

 examples/mainwindow/mainwindow.cpp

@@ -1,12 +1,25 @@
// Copyright (C) 2023-2024 Stdware Collections (https://www.github.com/stdware)
// Copyright (C) 2021-2023 wangwenx190 (Yuhang Zhao)
// SPDX-License-Identifier: Apache-2.0

#include "mainwindow.h"

#include <QtCore/QDebug>
#include <QtCore/QFile>
#include <QtCore/QTime>
#include <QtCore/QTimer>
#include <QtGui/QPainter>
#include <QtGui/QWindow>
#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 <QtWebEngineWidgets/QWebEngineView>

#include <QWKWidgets/widgetwindowagent.h>

@@ -31,17 +44,24 @@
MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) {
    installWindowAgent();

#if 1
    auto clockWidget = new ClockWidget();
    clockWidget->setObjectName("clock-widget");
    clockWidget->setObjectName(QStringLiteral("clock-widget"));
    clockWidget->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
    setCentralWidget(clockWidget);
#else
    auto webView = new QWebEngineView();
    webView->load(QUrl("https://www.baidu.com"));
    setCentralWidget(webView);
#endif

    if (QFile qss(":/dark-style.qss"); qss.open(QIODevice::ReadOnly | QIODevice::Text)) {
        setStyleSheet(QString::fromUtf8(qss.readAll()));
    }
    loadStyleSheet(Dark);

    setWindowTitle("Example MainWindow");
    resize(640, 480);
    setWindowTitle(tr("Example MainWindow"));
    resize(800, 600);

    // setFixedHeight(600);
    // windowAgent->centralize();
}

static inline void emulateLeaveEvent(QWidget *widget) {
@@ -80,22 +100,25 @@
    });
}

MainWindow::~MainWindow() {
}
MainWindow::~MainWindow() = default;

bool MainWindow::event(QEvent *event) {
    switch (event->type()) {
        case QEvent::WindowActivate: {
            auto menu = menuWidget();
            menu->setProperty("bar-active", true);
            style()->polish(menu);
            if (menu) {
                menu->setProperty("bar-active", true);
                style()->polish(menu);
            }
            break;
        }

        case QEvent::WindowDeactivate: {
            auto menu = menuWidget();
            menu->setProperty("bar-active", false);
            style()->polish(menu);
            if (menu) {
                menu->setProperty("bar-active", false);
                style()->polish(menu);
            }
            break;
        }

@@ -105,86 +128,206 @@
    return QMainWindow::event(event);
}


void MainWindow::closeEvent(QCloseEvent *event) {
    // if (!(qApp->keyboardModifiers() & Qt::ControlModifier)) {
    //     QTimer::singleShot(1000, this, &QWidget::show);
    // }
    event->accept();
}

void MainWindow::installWindowAgent() {
    auto agent = new QWK::WidgetWindowAgent(this);
    if (!agent->setup(this)) {
        qFatal("Frameless handle failed to initialize.");
    }
    // 1. Setup window agent
    windowAgent = new QWK::WidgetWindowAgent(this);
    windowAgent->setup(this);

    auto menuBar = []() {
    // 2. Construct your title bar
    auto menuBar = [this]() {
        auto menuBar = new QMenuBar();
        auto file = new QMenu("File(&F)", menuBar);
        file->addAction(new QAction("New(&N)", menuBar));
        file->addAction(new QAction("Open(&O)", menuBar));

        auto edit = new QMenu("Edit(&E)", menuBar);
        edit->addAction(new QAction("Undo(&U)", menuBar));
        edit->addAction(new QAction("Redo(&R)", menuBar));
        // Virtual menu
        auto file = new QMenu(tr("File(&F)"), menuBar);
        file->addAction(new QAction(tr("New(&N)"), menuBar));
        file->addAction(new QAction(tr("Open(&O)"), menuBar));
        file->addSeparator();

        auto edit = new QMenu(tr("Edit(&E)"), menuBar);
        edit->addAction(new QAction(tr("Undo(&U)"), menuBar));
        edit->addAction(new QAction(tr("Redo(&R)"), menuBar));

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

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

        auto lightBlurAction = new QAction(tr("Light blur"), menuBar);
        lightBlurAction->setCheckable(true);
        connect(lightBlurAction, &QAction::toggled, this, [this](bool checked) {
            if (!windowAgent->setWindowAttribute(QStringLiteral("blur-effect"), "light")) {
                return;
            }
            if (checked) {
                setProperty("custom-style", true);
                style()->polish(this);
            }
        });

        auto noBlurAction = new QAction(tr("No blur"), menuBar);
        noBlurAction->setCheckable(true);
        connect(noBlurAction, &QAction::toggled, this, [this](bool checked) {
            if (!windowAgent->setWindowAttribute(QStringLiteral("blur-effect"), "none")) {
                return;
            }
            if (checked) {
                setProperty("custom-style", false);
                style()->polish(this);
            }
        });

        auto macStyleGroup = new QActionGroup(menuBar);
        macStyleGroup->addAction(darkBlurAction);
        macStyleGroup->addAction(lightBlurAction);
        macStyleGroup->addAction(noBlurAction);
#endif

        // Real menu
        auto settings = new QMenu(tr("Settings(&S)"), menuBar);
        settings->addAction(darkAction);

#ifdef Q_OS_WIN
        settings->addSeparator();
        settings->addAction(dwmBlurAction);
        settings->addAction(acrylicAction);
        settings->addAction(micaAction);
        settings->addAction(micaAltAction);
#elif defined(Q_OS_MAC)
        settings->addAction(darkBlurAction);
        settings->addAction(lightBlurAction);
        settings->addAction(noBlurAction);
#endif

        menuBar->addMenu(file);
        menuBar->addMenu(edit);
        menuBar->addMenu(settings);
        return menuBar;
    }();
    menuBar->setObjectName("win-menu-bar");
    menuBar->setObjectName(QStringLiteral("win-menu-bar"));

    auto titleLabel = new QLabel();
    titleLabel->setAlignment(Qt::AlignCenter);
    titleLabel->setObjectName("win-title-label");
    titleLabel->setObjectName(QStringLiteral("win-title-label"));

#ifndef Q_OS_MAC
    auto iconButton = new QWK::WindowButton();
    iconButton->setObjectName("icon-button");
    iconButton->setObjectName(QStringLiteral("icon-button"));
    iconButton->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);

    auto minButton = new QWK::WindowButton();
    minButton->setObjectName("min-button");
    minButton->setObjectName(QStringLiteral("min-button"));
    minButton->setProperty("system-button", true);
    minButton->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);

    auto maxButton = new QWK::WindowButton();
    maxButton->setCheckable(true);
    maxButton->setObjectName("max-button");
    maxButton->setObjectName(QStringLiteral("max-button"));
    maxButton->setProperty("system-button", true);
    maxButton->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);

    auto closeButton = new QWK::WindowButton();
    closeButton->setObjectName("close-button");
    closeButton->setObjectName(QStringLiteral("close-button"));
    closeButton->setProperty("system-button", true);
    closeButton->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
#endif

    auto windowBar = new QWK::WindowBar();
#ifndef Q_OS_MAC
    windowBar->setIconButton(iconButton);
    windowBar->setMinButton(minButton);
    windowBar->setMaxButton(maxButton);
    windowBar->setCloseButton(closeButton);
#endif
    windowBar->setMenuBar(menuBar);
    windowBar->setTitleLabel(titleLabel);
    windowBar->setHostWidget(this);

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

#ifdef Q_OS_WINDOWS
    // Emulate Window system menu button behaviors
    connect(iconButton, &QAbstractButton::clicked, this, [iconButton, agent] {
        iconButton->setProperty("double-click-close", false);

        // Pick a suitable time threshold
        QTimer::singleShot(75, [iconButton, agent]() {
            if (iconButton->property("double-click-close").toBool())
                return;
            agent->showSystemMenu(iconButton->mapToGlobal({0, iconButton->height()}));
        });
    });
    connect(iconButton, &QWK::WindowButton::doubleClicked, this, [iconButton, this]() {
        iconButton->setProperty("double-click-close", true);
        close();
#ifdef Q_OS_MAC
    windowAgent->setSystemButtonAreaCallback([](const QSize &size) {
        static constexpr const int width = 75;
        return QRect(QPoint(size.width() - width, 0), QSize(width, size.height())); //
    });
#endif

    setMenuWidget(windowBar);


#ifndef Q_OS_MAC
    connect(windowBar, &QWK::WindowBar::minimizeRequested, this, &QWidget::showMinimized);
    connect(windowBar, &QWK::WindowBar::maximizeRequested, this, [this, maxButton](bool max) {
        if (max) {
@@ -199,5 +342,18 @@
        emulateLeaveEvent(maxButton);
    });
    connect(windowBar, &QWK::WindowBar::closeRequested, this, &QWidget::close);
    setMenuWidget(windowBar);
#endif
}

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();
    }
}