misc: minor tweaks

1. Finish the simple title bar of the QOpenGLWidget demo
2. Minor improvements of the Quick implementation

Signed-off-by: Yuhang Zhao <2546789017@qq.com>

examples/openglwidget/images.qrc

@@ -1,5 +1,5 @@
 <RCC>
-  <qresource prefix="/">
-    <file>images/qtlogo.png</file>
-  </qresource>
+    <qresource prefix="/">
+        <file>images/qtlogo.png</file>
+    </qresource>
 </RCC>

examples/openglwidget/mainwindow.cpp

@@ -25,6 +25,12 @@
 #include "mainwindow.h"
 #include "glwidget.h"
 #include <QtWidgets/qboxlayout.h>
+#include <QtWidgets/qlabel.h>
+#include <QtWidgets/qpushbutton.h>
+
+FRAMELESSHELPER_USE_NAMESPACE
+
+using namespace Global;
 
 MainWindow::MainWindow(QWidget *parent) : FramelessWidget(parent)
 {
@@ -33,19 +39,49 @@ MainWindow::MainWindow(QWidget *parent) : FramelessWidget(parent)
 
 MainWindow::~MainWindow() = default;
 
+void MainWindow::updateMaximizeButton()
+{
+    m_maxBtn->setText(isZoomed() ? tr("RESTORE") : tr("MAXIMIZE"));
+}
+
 void MainWindow::setupUi()
 {
-    resize(800, 600);
-    setWindowTitle(tr("QOpenGLWidget demo"));
-    m_titleBar.reset(new QWidget(this));
-    m_titleBar->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
-    m_titleBar->setFixedHeight(30);
+    m_titleLabel.reset(new QLabel(this));
+    QFont f = font();
+    f.setPointSize(kDefaultTitleBarFontPointSize);
+    m_titleLabel->setFont(f);
+    connect(this, &MainWindow::windowTitleChanged, m_titleLabel.data(), &QLabel::setText);
+    m_minBtn.reset(new QPushButton(this));
+    m_minBtn->setText(tr("MINIMIZE"));
+    connect(m_minBtn.data(), &QPushButton::clicked, this, &MainWindow::showMinimized);
+    m_maxBtn.reset(new QPushButton(this));
+    updateMaximizeButton();
+    connect(m_maxBtn.data(), &QPushButton::clicked, this, &MainWindow::toggleMaximized);
+    connect(this, &MainWindow::zoomedChanged, this, &MainWindow::updateMaximizeButton);
+    m_closeBtn.reset(new QPushButton(this));
+    m_closeBtn->setText(tr("CLOSE"));
+    connect(m_closeBtn.data(), &QPushButton::clicked, this, &MainWindow::close);
+    m_titleBarWidget.reset(new QWidget(this));
+    m_titleBarWidget->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
+    m_titleBarWidget->setFixedHeight(kDefaultTitleBarHeight);
+    const auto titleBarLayout = new QHBoxLayout(m_titleBarWidget.data());
+    titleBarLayout->setSpacing(0);
+    titleBarLayout->setContentsMargins(0, 0, 0, 0);
+    titleBarLayout->addSpacerItem(new QSpacerItem(kDefaultTitleBarTitleLabelMargin, kDefaultTitleBarTitleLabelMargin));
+    titleBarLayout->addWidget(m_titleLabel.data());
+    titleBarLayout->addStretch();
+    titleBarLayout->addWidget(m_minBtn.data());
+    titleBarLayout->addWidget(m_maxBtn.data());
+    titleBarLayout->addWidget(m_closeBtn.data());
+    m_titleBarWidget->setLayout(titleBarLayout);
     m_glWidget.reset(new GLWidget(this));
     const auto mainLayout = new QVBoxLayout(this);
     mainLayout->setSpacing(0);
     mainLayout->setContentsMargins(0, 0, 0, 0);
-    mainLayout->addWidget(m_titleBar.data());
+    mainLayout->addWidget(m_titleBarWidget.data());
     mainLayout->addWidget(m_glWidget.data());
     setLayout(mainLayout);
-    setTitleBarWidget(m_titleBar.data());
+    setTitleBarWidget(m_titleBarWidget.data());
+    resize(800, 600);
+    setWindowTitle(tr("QOpenGLWidget demo"));
 }

examples/openglwidget/mainwindow.h

@@ -26,6 +26,11 @@
 
 #include <framelesswidget.h>
 
+QT_BEGIN_NAMESPACE
+class QLabel;
+class QPushButton;
+QT_END_NAMESPACE
+
 class GLWidget;
 
 class MainWindow : public FRAMELESSHELPER_PREPEND_NAMESPACE(FramelessWidget)
@@ -37,10 +42,17 @@ public:
     explicit MainWindow(QWidget *parent = nullptr);
     ~MainWindow() override;
 
+public Q_SLOTS:
+    void updateMaximizeButton();
+
 private:
     void setupUi();
 
 private:
-    QScopedPointer<QWidget> m_titleBar;
+    QScopedPointer<QLabel> m_titleLabel;
+    QScopedPointer<QPushButton> m_minBtn;
+    QScopedPointer<QPushButton> m_maxBtn;
+    QScopedPointer<QPushButton> m_closeBtn;
+    QScopedPointer<QWidget> m_titleBarWidget;
     QScopedPointer<GLWidget> m_glWidget;
 };

include/FramelessHelper/Quick/framelesshelperquick_global.h

@@ -26,7 +26,7 @@
 
 #include <framelesshelpercore_global.h>
 #if __has_include(<QtQml/qqmlregistration.h>)
-#include <QtQml/qqmlregistration.h>
+#  include <QtQml/qqmlregistration.h>
 #endif
 
 #ifndef FRAMELESSHELPER_QUICK_API

include/FramelessHelper/Quick/framelessquickhelper.h

@@ -25,6 +25,9 @@
 #pragma once
 
 #include "framelesshelperquick_global.h"
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 14, 0))
+#  include <QtQml/qqmlextensionplugin.h>
+#endif // (QT_VERSION >= QT_VERSION_CHECK(5, 14, 0))
 
 QT_BEGIN_NAMESPACE
 class QQmlEngine;
@@ -35,6 +38,20 @@ FRAMELESSHELPER_BEGIN_NAMESPACE
 namespace FramelessHelper::Quick
 {
 FRAMELESSHELPER_QUICK_API void registerTypes(QQmlEngine *engine);
-}
+} // namespace FramelessHelper::Quick
+
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 14, 0))
+class FRAMELESSHELPER_QUICK_API FramelessHelperQuickPlugin : public QQmlEngineExtensionPlugin
+{
+    Q_OBJECT
+    Q_PLUGIN_METADATA(IID QQmlEngineExtensionInterface_iid)
+
+public:
+    explicit FramelessHelperQuickPlugin(QObject *parent = nullptr);
+    ~FramelessHelperQuickPlugin() override;
+
+    void initializeEngine(QQmlEngine *engine, const char *uri) override;
+};
+#endif // (QT_VERSION >= QT_VERSION_CHECK(5, 14, 0))
 
 FRAMELESSHELPER_END_NAMESPACE

src/quick/framelesshelperquick.qrc

@@ -1,4 +1,7 @@
 <RCC>
+    <qresource prefix="/org/wangwenx190/FramelessHelper">
+        <file alias="qmldir">module/qmldir</file>
+    </qresource>
     <qresource prefix="/org.wangwenx190.FramelessHelper">
         <file alias="images/dark/chrome-close.svg">../core/images/dark/chrome-close.svg</file>
         <file alias="images/dark/chrome-maximize.svg">../core/images/dark/chrome-maximize.svg</file>

src/quick/framelessquickhelper.cpp

@@ -93,4 +93,26 @@ void FramelessHelper::Quick::registerTypes(QQmlEngine *engine)
     qmlRegisterModule(QUICK_URI_FULL);
 }
 
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 14, 0))
+FramelessHelperQuickPlugin::FramelessHelperQuickPlugin(QObject *parent) : QQmlEngineExtensionPlugin(parent)
+{
+}
+
+FramelessHelperQuickPlugin::~FramelessHelperQuickPlugin() = default;
+
+void FramelessHelperQuickPlugin::initializeEngine(QQmlEngine *engine, const char *uri)
+{
+    Q_ASSERT(engine);
+    Q_ASSERT(uri);
+    if (!engine || !uri) {
+        return;
+    }
+    Q_ASSERT(QLatin1String(uri) == QLatin1String(FRAMELESSHELPER_QUICK_URI));
+    if (QLatin1String(uri) != QLatin1String(FRAMELESSHELPER_QUICK_URI)) {
+        return;
+    }
+    FramelessHelper::Quick::registerTypes(engine);
+}
+#endif // (QT_VERSION >= QT_VERSION_CHECK(5, 14, 0))
+
 FRAMELESSHELPER_END_NAMESPACE

src/quick/module/qmldir

@@ -0,0 +1,6 @@
+module org.wangwenx190.FramelessHelper
+linktarget FramelessHelperQuick
+plugin FramelessHelperQuick
+classname FramelessHelperQuickPlugin
+typeinfo FramelessHelperQuick.qmltypes
+prefer :/org/wangwenx190/FramelessHelper/