From c2e349f1c38b55fd12f8ae537e754fa6658ab631 Mon Sep 17 00:00:00 2001
From: Sine Striker <trueful@163.com>
Date: 周一, 01 1月 2024 20:21:34 +0800
Subject: [PATCH] Tested 5.12.8

---
 examples/mainwindow/mainwindow.cpp |  220 ++++++++++++++++++++++++++++++++++++++++++++++--------
 1 files changed, 185 insertions(+), 35 deletions(-)

diff --git a/examples/mainwindow/mainwindow.cpp b/examples/mainwindow/mainwindow.cpp
index 47c7791..574fc06 100644
--- a/examples/mainwindow/mainwindow.cpp
+++ b/examples/mainwindow/mainwindow.cpp
@@ -1,12 +1,22 @@
+// Copyright (C) 2023-2024 Stdware Collections
+// 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 <QWKWidgets/widgetwindowagent.h>
 
@@ -32,16 +42,14 @@
     installWindowAgent();
 
     auto clockWidget = new ClockWidget();
-    clockWidget->setObjectName("clock-widget");
+    clockWidget->setObjectName(QStringLiteral("clock-widget"));
     clockWidget->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
     setCentralWidget(clockWidget);
 
-    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);
 }
 
 static inline void emulateLeaveEvent(QWidget *widget) {
@@ -80,8 +88,7 @@
     });
 }
 
-MainWindow::~MainWindow() {
-}
+MainWindow::~MainWindow() = default;
 
 bool MainWindow::event(QEvent *event) {
     switch (event->type()) {
@@ -106,77 +113,206 @@
 }
 
 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_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);
+
+    // 3. Adds simulated mouse events to the title bar buttons
 #ifdef Q_OS_WINDOWS
     // Emulate Window system menu button behaviors
-    connect(iconButton, &QAbstractButton::clicked, this, [iconButton, agent] {
+    connect(iconButton, &QAbstractButton::clicked, windowAgent, [this, iconButton] {
         iconButton->setProperty("double-click-close", false);
 
         // Pick a suitable time threshold
-        QTimer::singleShot(75, [iconButton, agent]() {
+        QTimer::singleShot(75, windowAgent, [this, iconButton]() {
             if (iconButton->property("double-click-close").toBool())
                 return;
-            agent->showSystemMenu(iconButton->mapToGlobal({0, iconButton->height()}));
+            windowAgent->showSystemMenu(iconButton->mapToGlobal(QPoint{0, iconButton->height()}));
         });
     });
     connect(iconButton, &QWK::WindowButton::doubleClicked, this, [iconButton, this]() {
@@ -185,6 +321,7 @@
     });
 #endif
 
+#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 +336,18 @@
         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();
+    }
 }

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