From cd352b186c2881af9342cf76693500ce3a48be8a Mon Sep 17 00:00:00 2001
From: XieLong <xielongmaster@gmail.com>
Date: 周日, 15 9月 2024 12:32:05 +0800
Subject: [PATCH] Optimize mainwindow Example code, ensure that only one style is selected at a time. (#137)

---
 examples/mainwindow/mainwindow.cpp |  187 ++++++++++++++++++++++++++++++++++++----------
 1 files changed, 145 insertions(+), 42 deletions(-)

diff --git a/examples/mainwindow/mainwindow.cpp b/examples/mainwindow/mainwindow.cpp
index e289c3e..14227ea 100644
--- a/examples/mainwindow/mainwindow.cpp
+++ b/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>
 
@@ -31,15 +44,24 @@
 MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) {
     installWindowAgent();
 
+#if 1
     auto clockWidget = new ClockWidget();
     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
 
     loadStyleSheet(Dark);
 
     setWindowTitle(tr("Example MainWindow"));
     resize(800, 600);
+
+    // setFixedHeight(600);
+    // windowAgent->centralize();
 }
 
 static inline void emulateLeaveEvent(QWidget *widget) {
@@ -84,15 +106,19 @@
     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;
         }
 
@@ -102,14 +128,22 @@
     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() {
     // 1. Setup window agent
-    auto agent = new QWK::WidgetWindowAgent(this);
-    agent->setup(this);
+    windowAgent = new QWK::WidgetWindowAgent(this);
+    windowAgent->setup(this);
 
     // 2. Construct your title bar
-    auto menuBar = [this, agent]() {
-        auto menuBar = new QMenuBar();
+    auto menuBar = [this]() {
+        auto menuBar = new QMenuBar(this);
 
         // Virtual menu
         auto file = new QMenu(tr("File(&F)"), menuBar);
@@ -122,7 +156,7 @@
         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 +165,98 @@
             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->setData(QStringLiteral("dwm-blur"));
+        dwmBlurAction->setCheckable(true);
+
+        auto acrylicAction = new QAction(tr("Enable acrylic material"), menuBar);
+        acrylicAction->setData(QStringLiteral("acrylic-material"));
+        acrylicAction->setCheckable(true);
+
+        auto micaAction = new QAction(tr("Enable mica"), menuBar);
+        micaAction->setData(QStringLiteral("mica"));
+        micaAction->setCheckable(true);
+
+        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);
+            }
+            windowAgent->setWindowAttribute(action->data().toString(), action->isChecked());
+            setProperty("custom-style", action->isChecked());
+            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(framelessOnAction);
+        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);
@@ -189,35 +302,24 @@
     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);
+
+#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, agent, [iconButton, agent] {
-        iconButton->setProperty("double-click-close", false);
-
-        // Pick a suitable time threshold
-        QTimer::singleShot(75, agent, [iconButton, agent]() {
-            if (iconButton->property("double-click-close").toBool())
-                return;
-            agent->showSystemMenu(iconButton->mapToGlobal(QPoint{0, iconButton->height()}));
-        });
-    });
-    connect(iconButton, &QWK::WindowButton::doubleClicked, this, [iconButton, this]() {
-        iconButton->setProperty("double-click-close", true);
-        close();
-    });
-#endif
 
 #ifndef Q_OS_MAC
     connect(windowBar, &QWK::WindowBar::minimizeRequested, this, &QWidget::showMinimized);
@@ -241,10 +343,11 @@
     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();
     }
-}
\ No newline at end of file
+}

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