quick: PIMPL refactor

issue: #266

examples/dialog/dialog.cpp

@@ -13,7 +13,6 @@
 #include <FramelessHelper/Widgets/standardtitlebar.h>
 #include <FramelessHelper/Widgets/framelesswidgetshelper.h>
 #include <FramelessHelper/Widgets/standardsystembutton.h>
-#include <FramelessHelper/Widgets/private/framelesswidgetshelper_p.h>
 #include "../shared/settings.h"
 
 extern template void Settings::set<QRect>(const QString &, const QString &, const QRect &);
@@ -138,11 +137,6 @@ void Dialog::setupUi()
     helper->setSystemButton(titleBar->maximizeButton(), SystemButtonType::Maximize);
     helper->setSystemButton(titleBar->closeButton(), SystemButtonType::Close);
 #endif // Q_OS_MACOS
-    // Special hack to disable the overriding of the mouse cursor, it's totally different
-    // with making the window un-resizable: we still want the window be able to resize
-    // programatically, but we also want the user not able to resize the window manually.
-    // So apparently we can't use QWidget::setFixedWidth/Height/Size() here.
-    FramelessWidgetsHelperPrivate::get(helper)->setProperty(kDontOverrideCursorVar, true);
 }
 
 void Dialog::waitReady()

examples/quick/qml/ApplicationWindow.qml

@@ -81,7 +81,7 @@ FramelessApplicationWindow {
     }
 
     Timer {
-        interval: 500
+        interval: 100
         running: true
         repeat: true
         onTriggered: timeLabel.text = Qt.formatTime(new Date(), "hh:mm:ss")

examples/quick/qml/Window.qml

@@ -81,7 +81,7 @@ FramelessWindow {
     }
 
     Timer {
-        interval: 500
+        interval: 100
         running: true
         repeat: true
         onTriggered: timeLabel.text = Qt.formatTime(new Date(), "hh:mm:ss")

examples/widget/widget.cpp

@@ -54,7 +54,7 @@ FRAMELESSHELPER_STRING_CONSTANT(DevicePixelRatio)
 Widget::Widget(QWidget *parent) : FramelessWidget(parent)
 {
     initialize();
-    startTimer(500);
+    startTimer(100);
     connect(FramelessManager::instance(), &FramelessManager::systemThemeChanged, this, &Widget::updateStyleSheet);
 }
 

include/FramelessHelper/Core/framelesshelper_windows.h

@@ -86,6 +86,130 @@
 
 #include <FramelessHelper/Core/framelesshelpercore_global.h>
 
+#ifndef WM_SIZEWAIT
+#  define WM_SIZEWAIT (0x0004)
+#endif
+
+#ifndef WM_SETVISIBLE
+#  define WM_SETVISIBLE (0x0009)
+#endif
+
+#ifndef WM_SYSTEMERROR
+#  define WM_SYSTEMERROR (0x0017)
+#endif
+
+#ifndef WM_CTLCOLOR
+#  define WM_CTLCOLOR (0x0019)
+#endif
+
+#ifndef WM_LOGOFF
+#  define WM_LOGOFF (0x0025)
+#endif
+
+#ifndef WM_ALTTABACTIVE
+#  define WM_ALTTABACTIVE (0x0029)
+#endif
+
+#ifndef WM_SHELLNOTIFY
+#  define WM_SHELLNOTIFY (0x0034)
+#endif
+
+#ifndef WM_ISACTIVEICON
+#  define WM_ISACTIVEICON (0x0035)
+#endif
+
+#ifndef WM_QUERYPARKICON
+#  define WM_QUERYPARKICON (0x0036)
+#endif
+
+#ifndef WM_WINHELP
+#  define WM_WINHELP (0x0038)
+#endif
+
+#ifndef WM_FULLSCREEN
+#  define WM_FULLSCREEN (0x003A)
+#endif
+
+#ifndef WM_CLIENTSHUTDOWN
+#  define WM_CLIENTSHUTDOWN (0x003B)
+#endif
+
+#ifndef WM_DDEMLEVENT
+#  define WM_DDEMLEVENT (0x003C)
+#endif
+
+#ifndef WM_TESTING
+#  define WM_TESTING (0x0040)
+#endif
+
+#ifndef WM_OTHERWINDOWCREATED
+#  define WM_OTHERWINDOWCREATED (0x0042)
+#endif
+
+#ifndef WM_OTHERWINDOWDESTROYED
+#  define WM_OTHERWINDOWDESTROYED (0x0043)
+#endif
+
+#ifndef WM_COPYGLOBALDATA
+#  define WM_COPYGLOBALDATA (0x0049)
+#endif
+
+#ifndef WM_KEYF1
+#  define WM_KEYF1 (0x004D)
+#endif
+
+#ifndef WM_ACCESS_WINDOW
+#  define WM_ACCESS_WINDOW (0x004F)
+#endif
+
+#ifndef WM_FINALDESTROY
+#  define WM_FINALDESTROY (0x0070)
+#endif
+
+#ifndef WM_MEASUREITEM_CLIENTDATA
+#  define WM_MEASUREITEM_CLIENTDATA (0x0071)
+#endif
+
+#ifndef WM_SYNCTASK
+#  define WM_SYNCTASK (0x0089)
+#endif
+
+#ifndef WM_KLUDGEMINRECT
+#  define WM_KLUDGEMINRECT (0x008B)
+#endif
+
+#ifndef WM_LPKDRAWSWITCHWND
+#  define WM_LPKDRAWSWITCHWND (0x008C)
+#endif
+
+#ifndef WM_UAHDESTROYWINDOW
+#  define WM_UAHDESTROYWINDOW (0x0090)
+#endif
+
+#ifndef WM_UAHDRAWMENU
+#  define WM_UAHDRAWMENU (0x0091)
+#endif
+
+#ifndef WM_UAHDRAWMENUITEM
+#  define WM_UAHDRAWMENUITEM (0x0092)
+#endif
+
+#ifndef WM_UAHINITMENU
+#  define WM_UAHINITMENU (0x0093)
+#endif
+
+#ifndef WM_UAHMEASUREMENUITEM
+#  define WM_UAHMEASUREMENUITEM (0x0094)
+#endif
+
+#ifndef WM_UAHNCPAINTMENUPOPUP
+#  define WM_UAHNCPAINTMENUPOPUP (0x0095)
+#endif
+
+#ifndef WM_UAHUPDATE
+#  define WM_UAHUPDATE (0x0096)
+#endif
+
 #ifndef WM_NCUAHDRAWCAPTION
 #  define WM_NCUAHDRAWCAPTION (0x00AE)
 #endif
@@ -94,6 +218,206 @@
 #  define WM_NCUAHDRAWFRAME (0x00AF)
 #endif
 
+#ifndef WM_YOMICHAR
+#  define WM_YOMICHAR (0x0108)
+#endif
+
+#ifndef WM_CONVERTREQUEST
+#  define WM_CONVERTREQUEST (0x010A)
+#endif
+
+#ifndef WM_CONVERTRESULT
+#  define WM_CONVERTRESULT (0x010B)
+#endif
+
+#ifndef WM_INTERIM
+#  define WM_INTERIM (0x010C)
+#endif
+
+#ifndef WM_SYSTIMER
+#  define WM_SYSTIMER (0x0118)
+#endif
+
+#ifndef WM_GESTUREINPUT
+#  define WM_GESTUREINPUT (0x011B)
+#endif
+
+#ifndef WM_GESTURENOTIFIED
+#  define WM_GESTURENOTIFIED (0x011C)
+#endif
+
+#ifndef WM_LBTRACKPOINT
+#  define WM_LBTRACKPOINT (0x0131)
+#endif
+
+#ifndef WM_DROPOBJECT
+#  define WM_DROPOBJECT (0x022A)
+#endif
+
+#ifndef WM_QUERYDROPOBJECT
+#  define WM_QUERYDROPOBJECT (0x022B)
+#endif
+
+#ifndef WM_BEGINDRAG
+#  define WM_BEGINDRAG (0x022C)
+#endif
+
+#ifndef WM_DRAGLOOP
+#  define WM_DRAGLOOP (0x022D)
+#endif
+
+#ifndef WM_DRAGSELECT
+#  define WM_DRAGSELECT (0x022E)
+#endif
+
+#ifndef WM_DRAGMOVE
+#  define WM_DRAGMOVE (0x022F)
+#endif
+
+#ifndef WM_STOPINERTIA
+#  define WM_STOPINERTIA (0x023B)
+#endif
+
+#ifndef WM_ENDINERTIA
+#  define WM_ENDINERTIA (0x023C)
+#endif
+
+#ifndef WM_EDGYINERTIA
+#  define WM_EDGYINERTIA (0x023D)
+#endif
+
+#ifndef WM_VISIBILITYCHANGED
+#  define WM_VISIBILITYCHANGED (0x0270)
+#endif
+
+#ifndef WM_VIEWSTATECHANGED
+#  define WM_VIEWSTATECHANGED (0x0271)
+#endif
+
+#ifndef WM_UNREGISTER_WINDOW_SERVICES
+#  define WM_UNREGISTER_WINDOW_SERVICES (0x0272)
+#endif
+
+#ifndef WM_CONSOLIDATED
+#  define WM_CONSOLIDATED (0x0273)
+#endif
+
+#ifndef WM_IME_REPORT
+#  define WM_IME_REPORT (0x0280)
+#endif
+
+#ifndef WM_IME_SYSTEM
+#  define WM_IME_SYSTEM (0x0287)
+#endif
+
+#ifndef WM_POINTERDEVICEADDED
+#  define WM_POINTERDEVICEADDED (0x02C8)
+#endif
+
+#ifndef WM_POINTERDEVICEDELETED
+#  define WM_POINTERDEVICEDELETED (0x02C9)
+#endif
+
+#ifndef WM_FLICK
+#  define WM_FLICK (0x02CB)
+#endif
+
+#ifndef WM_FLICKINTERNAL
+#  define WM_FLICKINTERNAL (0x02CD)
+#endif
+
+#ifndef WM_BRIGHTNESSCHANGED
+#  define WM_BRIGHTNESSCHANGED (0x02CE)
+#endif
+
+#ifndef WM_SYSMENU
+#  define WM_SYSMENU (0x0313)
+#endif
+
+#ifndef WM_HOOKMSG
+#  define WM_HOOKMSG (0x0314)
+#endif
+
+#ifndef WM_EXITPROCESS
+#  define WM_EXITPROCESS (0x0315)
+#endif
+
+#ifndef WM_WAKETHREAD
+#  define WM_WAKETHREAD (0x0316)
+#endif
+
+#ifndef WM_UAHINIT
+#  define WM_UAHINIT (0x031B)
+#endif
+
+#ifndef WM_DESKTOPNOTIFY
+#  define WM_DESKTOPNOTIFY (0x031C)
+#endif
+
+#ifndef WM_DWMEXILEFRAME
+#  define WM_DWMEXILEFRAME (0x0322)
+#endif
+
+#ifndef WM_MAGNIFICATION_STARTED
+#  define WM_MAGNIFICATION_STARTED (0x0324)
+#endif
+
+#ifndef WM_MAGNIFICATION_ENDED
+#  define WM_MAGNIFICATION_ENDED (0x0325)
+#endif
+
+#ifndef WM_DWMTHUMBNAILSIZECHANGED
+#  define WM_DWMTHUMBNAILSIZECHANGED (0x0327)
+#endif
+
+#ifndef WM_MAGNIFICATION_OUTPUT
+#  define WM_MAGNIFICATION_OUTPUT (0x0328)
+#endif
+
+#ifndef WM_BSDRDATA
+#  define WM_BSDRDATA (0x0329)
+#endif
+
+#ifndef WM_DWMTRANSITIONSTATECHANGED
+#  define WM_DWMTRANSITIONSTATECHANGED (0x032A)
+#endif
+
+#ifndef WM_KEYBOARDCORRECTIONCALLOUT
+#  define WM_KEYBOARDCORRECTIONCALLOUT (0x032C)
+#endif
+
+#ifndef WM_KEYBOARDCORRECTIONACTION
+#  define WM_KEYBOARDCORRECTIONACTION (0x032D)
+#endif
+
+#ifndef WM_UIACTION
+#  define WM_UIACTION (0x032E)
+#endif
+
+#ifndef WM_ROUTED_UI_EVENT
+#  define WM_ROUTED_UI_EVENT (0x032F)
+#endif
+
+#ifndef WM_MEASURECONTROL
+#  define WM_MEASURECONTROL (0x0330)
+#endif
+
+#ifndef WM_GETACTIONTEXT
+#  define WM_GETACTIONTEXT (0x0331)
+#endif
+
+#ifndef WM_FORWARDKEYDOWN
+#  define WM_FORWARDKEYDOWN (0x0333)
+#endif
+
+#ifndef WM_FORWARDKEYUP
+#  define WM_FORWARDKEYUP (0x0334)
+#endif
+
+#ifndef WM_NOTIFYWOW
+#  define WM_NOTIFYWOW (0x0340)
+#endif
+
 #ifndef WM_DWMCOMPOSITIONCHANGED
 #  define WM_DWMCOMPOSITIONCHANGED (0x031E)
 #endif

include/FramelessHelper/Core/private/chromepalette_p.h

@@ -44,10 +44,8 @@ public:
     Q_NODISCARD static ChromePalettePrivate *get(ChromePalette *q);
     Q_NODISCARD static const ChromePalettePrivate *get(const ChromePalette *q);
 
-public Q_SLOTS:
+    Q_SLOT void refresh();
-    void refresh();
 
-private:
     ChromePalette *q_ptr = nullptr;
     // System-defined ones:
     QColor titleBarActiveBackgroundColor_sys = {};

include/FramelessHelper/Core/private/framelessmanager_p.h

@@ -49,39 +49,27 @@ public:
     static void initializeIconFont();
     Q_NODISCARD static QFont getIconFont();
 
-    Q_NODISCARD Global::SystemTheme systemTheme() const;
+    Q_SLOT void notifySystemThemeHasChangedOrNot();
-    Q_NODISCARD QColor systemAccentColor() const;
+    Q_SLOT void notifyWallpaperHasChangedOrNot();
-    Q_NODISCARD QString wallpaper() const;
-    Q_NODISCARD Global::WallpaperAspectStyle wallpaperAspectStyle() const;
 
-    static void addWindow(const SystemParameters *params);
-    static void removeWindow(const WId windowId);
-
-    Q_INVOKABLE void notifySystemThemeHasChangedOrNot();
-    Q_INVOKABLE void notifyWallpaperHasChangedOrNot();
-
-    Q_NODISCARD static bool usePureQtImplementation();
-
-    void setOverrideTheme(const Global::SystemTheme theme);
     Q_NODISCARD bool isThemeOverrided() const;
 
-private:
     void initialize();
+
     void doNotifySystemThemeHasChangedOrNot();
     void doNotifyWallpaperHasChangedOrNot();
 
-private:
     FramelessManager *q_ptr = nullptr;
-    Global::SystemTheme m_systemTheme = Global::SystemTheme::Unknown;
+    Global::SystemTheme systemTheme = Global::SystemTheme::Unknown;
-    std::optional<Global::SystemTheme> m_overrideTheme = std::nullopt;
+    std::optional<Global::SystemTheme> overrideTheme = std::nullopt;
-    QColor m_accentColor = {};
+    QColor accentColor = {};
 #ifdef Q_OS_WINDOWS
-    Global::DwmColorizationArea m_colorizationArea = Global::DwmColorizationArea::None;
+    Global::DwmColorizationArea colorizationArea = Global::DwmColorizationArea::None;
 #endif
-    QString m_wallpaper = {};
+    QString wallpaper = {};
-    Global::WallpaperAspectStyle m_wallpaperAspectStyle = Global::WallpaperAspectStyle::Fill;
+    Global::WallpaperAspectStyle wallpaperAspectStyle = Global::WallpaperAspectStyle::Fill;
-    QTimer m_themeTimer{};
+    QTimer themeTimer{};
-    QTimer m_wallpaperTimer{};
+    QTimer wallpaperTimer{};
 };
 
 FRAMELESSHELPER_END_NAMESPACE

include/FramelessHelper/Core/private/micamaterial_p.h

@@ -50,22 +50,18 @@ public:
     Q_NODISCARD QSize mapToWallpaper(const QSize &size) const;
     Q_NODISCARD QRect mapToWallpaper(const QRect &rect) const;
 
-public Q_SLOTS:
+    Q_SLOT void maybeGenerateBlurredWallpaper(const bool force = false);
-    void maybeGenerateBlurredWallpaper(const bool force = false);
+    Q_SLOT void updateMaterialBrush();
-    void updateMaterialBrush();
+    Q_SLOT void forceRebuildWallpaper();
-    void paint(QPainter *painter, const QRect &rect, const bool active = true);
-    void forceRebuildWallpaper();
 
-private:
     void initialize();
     void prepareGraphicsResources();
 
-private:
     MicaMaterial *q_ptr = nullptr;
     QColor tintColor = {};
-    qreal tintOpacity = 0.0;
+    qreal tintOpacity = qreal(0);
     QColor fallbackColor = {};
-    qreal noiseOpacity = 0.0;
+    qreal noiseOpacity = qreal(0);
     bool fallbackEnabled = true;
     QBrush micaBrush = {};
     bool initialized = false;

include/FramelessHelper/Core/private/registrykey_p.h

@@ -74,7 +74,7 @@ public:
     Q_NODISCARD std::optional<T> value(const QString &name) const
     {
         const QVariant var = value(name);
-        if (var.isValid()) {
+        if (var.isValid() && !var.isNull()) {
             return qvariant_cast<T>(var);
         }
         return std::nullopt;

include/FramelessHelper/Core/private/windowborderpainter_p.h

@@ -44,22 +44,11 @@ public:
     Q_NODISCARD static WindowBorderPainterPrivate *get(WindowBorderPainter *q);
     Q_NODISCARD static const WindowBorderPainterPrivate *get(const WindowBorderPainter *q);
 
-    Q_NODISCARD static int getNativeBorderThickness();
-    Q_NODISCARD static QColor getNativeBorderColor(const bool active);
-    Q_NODISCARD static Global::WindowEdges getNativeBorderEdges();
-
-public Q_SLOTS:
-    void paint(QPainter *painter, const QSize &size, const bool active) const;
-
-private:
-    void initialize();
-
-private:
     WindowBorderPainter *q_ptr = nullptr;
-    std::optional<int> m_thickness = std::nullopt;
+    std::optional<int> thickness = std::nullopt;
-    std::optional<Global::WindowEdges> m_edges = std::nullopt;
+    std::optional<Global::WindowEdges> edges = std::nullopt;
-    std::optional<QColor> m_activeColor = std::nullopt;
+    std::optional<QColor> activeColor = std::nullopt;
-    std::optional<QColor> m_inactiveColor = std::nullopt;
+    std::optional<QColor> inactiveColor = std::nullopt;
 };
 
 FRAMELESSHELPER_END_NAMESPACE

include/FramelessHelper/Core/windowborderpainter.h

@@ -61,7 +61,7 @@ public:
     Q_NODISCARD QColor nativeInactiveColor() const;
 
 public Q_SLOTS:
-    void paint(QPainter *painter, const QSize &size, const bool active) const;
+    void paint(QPainter *painter, const QSize &size, const bool active);
     void setThickness(const int value);
     void setEdges(const Global::WindowEdges value);
     void setActiveColor(const QColor &value);

include/FramelessHelper/Quick/framelessquickutils.h

@@ -75,7 +75,7 @@ public:
     Q_NODISCARD QColor defaultSystemButtonBackgroundColor() const;
     Q_NODISCARD QColor defaultSystemCloseButtonBackgroundColor() const;
 
-    Q_NODISCARD Q_INVOKABLE QColor getSystemButtonBackgroundColor(
+    Q_NODISCARD Q_SLOT QColor getSystemButtonBackgroundColor(
         const QuickGlobal::SystemButtonType button, const QuickGlobal::ButtonState state);
 
 protected:

include/FramelessHelper/Quick/private/framelessquickapplicationwindow_p_p.h

@@ -47,25 +47,9 @@ public:
     Q_NODISCARD static FramelessQuickApplicationWindowPrivate *get(FramelessQuickApplicationWindow *pub);
     Q_NODISCARD static const FramelessQuickApplicationWindowPrivate *get(const FramelessQuickApplicationWindow *pub);
 
-    Q_INVOKABLE Q_NODISCARD bool isHidden() const;
-    Q_INVOKABLE Q_NODISCARD bool isNormal() const;
-    Q_INVOKABLE Q_NODISCARD bool isMinimized() const;
-    Q_INVOKABLE Q_NODISCARD bool isMaximized() const;
-    Q_INVOKABLE Q_NODISCARD bool isZoomed() const;
-    Q_INVOKABLE Q_NODISCARD bool isFullScreen() const;
-
-public Q_SLOTS:
-    void showMinimized2();
-    void toggleMaximized();
-    void toggleFullScreen();
-
-private:
-    void initialize();
-
-private:
     FramelessQuickApplicationWindow *q_ptr = nullptr;
-    QuickWindowBorder *m_windowBorder = nullptr;
+    QuickWindowBorder *windowBorder = nullptr;
-    QQuickWindow::Visibility m_savedVisibility = QQuickWindow::Windowed;
+    QQuickWindow::Visibility savedVisibility = QQuickWindow::Windowed;
 };
 
 FRAMELESSHELPER_END_NAMESPACE

include/FramelessHelper/Quick/private/framelessquickhelper_p.h

@@ -51,33 +51,11 @@ public:
     Q_NODISCARD static FramelessQuickHelperPrivate *get(FramelessQuickHelper *pub);
     Q_NODISCARD static const FramelessQuickHelperPrivate *get(const FramelessQuickHelper *pub);
 
-    Q_NODISCARD bool isContentExtendedIntoTitleBar() const;
-    void extendsContentIntoTitleBar(const bool value);
-
-    Q_NODISCARD QQuickItem *getTitleBarItem() const;
-    void setTitleBarItem(QQuickItem *value);
-
     void attach();
     void detach();
-    void setSystemButton(QQuickItem *item, const QuickGlobal::SystemButtonType buttonType);
-    void setHitTestVisible(QQuickItem *item, const bool visible = true);
-    void setHitTestVisible(const QRect &rect, const bool visible = true);
-    void setHitTestVisible(QObject *object, const bool visible = true);
-    void showSystemMenu(const QPoint &pos);
-    void windowStartSystemMove2(const QPoint &pos);
-    void windowStartSystemResize2(const Qt::Edges edges, const QPoint &pos);
-
-    void moveWindowToDesktopCenter();
-    void bringWindowToFront();
-
-    Q_NODISCARD bool isWindowFixedSize() const;
-    void setWindowFixedSize(const bool value);
 
     void emitSignalForAllInstances(const char *signal);
 
-    Q_NODISCARD bool isBlurBehindWindowEnabled() const;
-    void setBlurBehindWindowEnabled(const bool value, const QColor &color);
-
     void setProperty(const char *name, const QVariant &value);
     Q_NODISCARD QVariant getProperty(const char *name, const QVariant &defaultValue = {});
 
@@ -86,15 +64,11 @@ public:
 
     Q_NODISCARD static FramelessQuickHelper *findOrCreateFramelessHelper(QObject *object);
 
-    Q_NODISCARD bool isReady() const;
-    void waitForReady();
-
     void repaintAllChildren(const quint32 delay = 0) const;
 
     Q_NODISCARD quint32 readyWaitTime() const;
     void setReadyWaitTime(const quint32 time);
 
-private:
     Q_NODISCARD QRect mapItemGeometryToScene(const QQuickItem * const item) const;
     Q_NODISCARD bool isInSystemButtons(const QPoint &pos, QuickGlobal::SystemButtonType *button) const;
     Q_NODISCARD bool isInTitleBarDraggableArea(const QPoint &pos) const;
@@ -104,14 +78,12 @@ private:
     Q_NODISCARD FramelessQuickHelperData *getWindowDataMutable() const;
     void rebindWindow();
 
-private:
     FramelessQuickHelper *q_ptr = nullptr;
-    QColor m_savedWindowBackgroundColor = {};
+    QColor savedWindowBackgroundColor = {};
-    bool m_blurBehindWindowEnabled = false;
+    bool blurBehindWindowEnabled = false;
-    std::optional<bool> m_extendIntoTitleBar = std::nullopt;
+    std::optional<bool> extendIntoTitleBar = std::nullopt;
-    bool m_destroying = false;
+    bool qpaReady = false;
-    bool m_qpaReady = false;
+    quint32 qpaWaitTime = 0;
-    quint32 m_qpaWaitTime = 0;
 };
 
 FRAMELESSHELPER_END_NAMESPACE

include/FramelessHelper/Quick/private/framelessquickwindow_p_p.h

@@ -47,25 +47,9 @@ public:
     Q_NODISCARD static FramelessQuickWindowPrivate *get(FramelessQuickWindow *pub);
     Q_NODISCARD static const FramelessQuickWindowPrivate *get(const FramelessQuickWindow *pub);
 
-    Q_INVOKABLE Q_NODISCARD bool isHidden() const;
-    Q_INVOKABLE Q_NODISCARD bool isNormal() const;
-    Q_INVOKABLE Q_NODISCARD bool isMinimized() const;
-    Q_INVOKABLE Q_NODISCARD bool isMaximized() const;
-    Q_INVOKABLE Q_NODISCARD bool isZoomed() const;
-    Q_INVOKABLE Q_NODISCARD bool isFullScreen() const;
-
-public Q_SLOTS:
-    void showMinimized2();
-    void toggleMaximized();
-    void toggleFullScreen();
-
-private:
-    void initialize();
-
-private:
     FramelessQuickWindow *q_ptr = nullptr;
-    QuickWindowBorder *m_windowBorder = nullptr;
+    QuickWindowBorder *windowBorder = nullptr;
-    QQuickWindow::Visibility m_savedVisibility = QQuickWindow::Windowed;
+    QQuickWindow::Visibility savedVisibility = QQuickWindow::Windowed;
 };
 
 FRAMELESSHELPER_END_NAMESPACE

include/FramelessHelper/Quick/private/quickimageitem_p.h

@@ -44,13 +44,6 @@ public:
     Q_NODISCARD static QuickImageItemPrivate *get(QuickImageItem *q);
     Q_NODISCARD static const QuickImageItemPrivate *get(const QuickImageItem *q);
 
-    void paint(QPainter *painter) const;
-
-    Q_NODISCARD QVariant source() const;
-    void setSource(const QVariant &value);
-
-private:
-    void initialize();
     void fromUrl(const QUrl &value, QPainter *painter) const;
     void fromString(const QString &value, QPainter *painter) const;
     void fromImage(const QImage &value, QPainter *painter) const;
@@ -58,9 +51,8 @@ private:
     void fromIcon(const QIcon &value, QPainter *painter) const;
     Q_NODISCARD QRectF paintArea() const;
 
-private:
     QuickImageItem *q_ptr = nullptr;
-    QVariant m_source = {};
+    QVariant source = {};
 };
 
 FRAMELESSHELPER_END_NAMESPACE

include/FramelessHelper/Quick/private/quickmicamaterial_p.h

@@ -44,19 +44,15 @@ public:
     Q_NODISCARD static QuickMicaMaterialPrivate *get(QuickMicaMaterial *q);
     Q_NODISCARD static const QuickMicaMaterialPrivate *get(const QuickMicaMaterial *q);
 
-public Q_SLOTS:
+    Q_SLOT void rebindWindow();
-    void rebindWindow();
-    void repaint(QPainter *painter);
 
-private:
     void initialize();
 
-private:
     QuickMicaMaterial *q_ptr = nullptr;
-    QMetaObject::Connection m_rootWindowXChangedConnection = {};
+    QMetaObject::Connection rootWindowXChangedConnection = {};
-    QMetaObject::Connection m_rootWindowYChangedConnection = {};
+    QMetaObject::Connection rootWindowYChangedConnection = {};
-    QMetaObject::Connection m_rootWindowActiveChangedConnection = {};
+    QMetaObject::Connection rootWindowActiveChangedConnection = {};
-    MicaMaterial *m_micaMaterial = nullptr;
+    MicaMaterial *micaMaterial = nullptr;
 };
 
 FRAMELESSHELPER_END_NAMESPACE

include/FramelessHelper/Quick/private/quickwindowborder_p.h

@@ -44,20 +44,15 @@ public:
     Q_NODISCARD static QuickWindowBorderPrivate *get(QuickWindowBorder *q);
     Q_NODISCARD static const QuickWindowBorderPrivate *get(const QuickWindowBorder *q);
 
-    void paint(QPainter *painter) const;
+    Q_SLOT void update();
 
-public Q_SLOTS:
-    void update();
-
-private:
     void initialize();
     void rebindWindow();
 
-private:
     QuickWindowBorder *q_ptr = nullptr;
-    WindowBorderPainter *m_borderPainter = nullptr;
+    WindowBorderPainter *borderPainter = nullptr;
-    QMetaObject::Connection m_activeChangeConnection = {};
+    QMetaObject::Connection activeChangeConnection = {};
-    QMetaObject::Connection m_visibilityChangeConnection = {};
+    QMetaObject::Connection visibilityChangeConnection = {};
 };
 
 FRAMELESSHELPER_END_NAMESPACE

src/core/framelessmanager.cpp

@@ -84,6 +84,18 @@ static constexpr const int kEventDelayInterval = 1000;
 }
 #endif // FRAMELESSHELPER_CORE_NO_BUNDLE_RESOURCE
 
+[[nodiscard]] static inline bool usePureQtImplementation()
+{
+    static const auto result = []() -> bool {
+#ifdef Q_OS_WINDOWS
+        return FramelessConfig::instance()->isSet(Option::UseCrossPlatformQtImplementation);
+#else
+        return true;
+#endif
+    }();
+    return result;
+}
+
 FramelessManagerPrivate::FramelessManagerPrivate(FramelessManager *q) : QObject(q)
 {
     Q_ASSERT(q);
@@ -152,85 +164,14 @@ QFont FramelessManagerPrivate::getIconFont()
 #endif // FRAMELESSHELPER_CORE_NO_BUNDLE_RESOURCE
 }
 
-SystemTheme FramelessManagerPrivate::systemTheme() const
-{
-    // The user's choice has top priority.
-    if (isThemeOverrided()) {
-        return m_overrideTheme.value();
-    }
-    return m_systemTheme;
-}
-
-QColor FramelessManagerPrivate::systemAccentColor() const
-{
-    return m_accentColor;
-}
-
-QString FramelessManagerPrivate::wallpaper() const
-{
-    return m_wallpaper;
-}
-
-WallpaperAspectStyle FramelessManagerPrivate::wallpaperAspectStyle() const
-{
-    return m_wallpaperAspectStyle;
-}
-
-void FramelessManagerPrivate::addWindow(FramelessParamsConst params)
-{
-    Q_ASSERT(params);
-    if (!params) {
-        return;
-    }
-    const WId windowId = params->getWindowId();
-    if (g_framelessManagerData()->contains(windowId)) {
-        return;
-    }
-    g_framelessManagerData()->append(windowId);
-    static const bool pureQt = usePureQtImplementation();
-    if (pureQt) {
-        FramelessHelperQt::addWindow(params);
-    }
-#ifdef Q_OS_WINDOWS
-    if (!pureQt) {
-        FramelessHelperWin::addWindow(params);
-    }
-    std::ignore = Utils::installWindowProcHook(windowId, params);
-#endif
-    connect(params->getWindowHandle(), &QWindow::destroyed, FramelessManager::instance(), [windowId](){ removeWindow(windowId); });
-}
-
-void FramelessManagerPrivate::removeWindow(const WId windowId)
-{
-    Q_ASSERT(windowId);
-    if (!windowId) {
-        return;
-    }
-    if (!g_framelessManagerData()->contains(windowId)) {
-        return;
-    }
-    g_framelessManagerData()->removeAll(windowId);
-    static const bool pureQt = usePureQtImplementation();
-    if (pureQt) {
-        FramelessHelperQt::removeWindow(windowId);
-    }
-#ifdef Q_OS_WINDOWS
-    if (!pureQt) {
-        FramelessHelperWin::removeWindow(windowId);
-    }
-    std::ignore = Utils::uninstallWindowProcHook(windowId);
-    std::ignore = Utils::removeMicaWindow(windowId);
-#endif
-}
-
 void FramelessManagerPrivate::notifySystemThemeHasChangedOrNot()
 {
-    m_themeTimer.start();
+    themeTimer.start();
 }
 
 void FramelessManagerPrivate::notifyWallpaperHasChangedOrNot()
 {
-    m_wallpaperTimer.start();
+    wallpaperTimer.start();
 }
 
 void FramelessManagerPrivate::doNotifySystemThemeHasChangedOrNot()
@@ -241,17 +182,17 @@ void FramelessManagerPrivate::doNotifySystemThemeHasChangedOrNot()
     const DwmColorizationArea currentColorizationArea = Utils::getDwmColorizationArea();
 #endif
     bool notify = false;
-    if (m_systemTheme != currentSystemTheme) {
+    if (systemTheme != currentSystemTheme) {
-        m_systemTheme = currentSystemTheme;
+        systemTheme = currentSystemTheme;
         notify = true;
     }
-    if (m_accentColor != currentAccentColor) {
+    if (accentColor != currentAccentColor) {
-        m_accentColor = currentAccentColor;
+        accentColor = currentAccentColor;
         notify = true;
     }
 #ifdef Q_OS_WINDOWS
-    if (m_colorizationArea != currentColorizationArea) {
+    if (colorizationArea != currentColorizationArea) {
-        m_colorizationArea = currentColorizationArea;
+        colorizationArea = currentColorizationArea;
         notify = true;
     }
 #endif
@@ -259,10 +200,10 @@ void FramelessManagerPrivate::doNotifySystemThemeHasChangedOrNot()
     if (notify && !isThemeOverrided()) {
         Q_Q(FramelessManager);
         Q_EMIT q->systemThemeChanged();
-        DEBUG.nospace() << "System theme changed. Current theme: " << m_systemTheme
+        DEBUG.nospace() << "System theme changed. Current theme: " << systemTheme
-                        << ", accent color: " << m_accentColor.name(QColor::HexArgb).toUpper()
+                        << ", accent color: " << accentColor.name(QColor::HexArgb).toUpper()
 #ifdef Q_OS_WINDOWS
-                        << ", colorization area: " << m_colorizationArea
+                        << ", colorization area: " << colorizationArea
 #endif
                         << '.';
     }
@@ -273,80 +214,53 @@ void FramelessManagerPrivate::doNotifyWallpaperHasChangedOrNot()
     const QString currentWallpaper = Utils::getWallpaperFilePath();
     const WallpaperAspectStyle currentWallpaperAspectStyle = Utils::getWallpaperAspectStyle();
     bool notify = false;
-    if (m_wallpaper != currentWallpaper) {
+    if (wallpaper != currentWallpaper) {
-        m_wallpaper = currentWallpaper;
+        wallpaper = currentWallpaper;
         notify = true;
     }
-    if (m_wallpaperAspectStyle != currentWallpaperAspectStyle) {
+    if (wallpaperAspectStyle != currentWallpaperAspectStyle) {
-        m_wallpaperAspectStyle = currentWallpaperAspectStyle;
+        wallpaperAspectStyle = currentWallpaperAspectStyle;
         notify = true;
     }
     if (notify) {
         Q_Q(FramelessManager);
         Q_EMIT q->wallpaperChanged();
-        DEBUG.nospace() << "Wallpaper changed. Current wallpaper: " << m_wallpaper
+        DEBUG.nospace() << "Wallpaper changed. Current wallpaper: " << wallpaper
-                        << ", aspect style: " << m_wallpaperAspectStyle << '.';
+                        << ", aspect style: " << wallpaperAspectStyle << '.';
     }
 }
 
-bool FramelessManagerPrivate::usePureQtImplementation()
-{
-    static const auto result = []() -> bool {
-#ifdef Q_OS_WINDOWS
-        return FramelessConfig::instance()->isSet(Option::UseCrossPlatformQtImplementation);
-#else
-        return true;
-#endif
-    }();
-    return result;
-}
-
-void FramelessManagerPrivate::setOverrideTheme(const SystemTheme theme)
-{
-    if ((!m_overrideTheme.has_value() && (theme == SystemTheme::Unknown))
-        || (m_overrideTheme.has_value() && (m_overrideTheme.value() == theme))) {
-        return;
-    }
-    if (theme == SystemTheme::Unknown) {
-        m_overrideTheme = std::nullopt;
-    } else {
-        m_overrideTheme = theme;
-    }
-    Q_Q(FramelessManager);
-    Q_EMIT q->systemThemeChanged();
-}
-
 bool FramelessManagerPrivate::isThemeOverrided() const
 {
-    return (m_overrideTheme.value_or(SystemTheme::Unknown) != SystemTheme::Unknown);
+    return (overrideTheme.value_or(SystemTheme::Unknown) != SystemTheme::Unknown);
 }
 
 void FramelessManagerPrivate::initialize()
 {
-    m_themeTimer.setInterval(kEventDelayInterval);
+    themeTimer.setInterval(kEventDelayInterval);
-    m_themeTimer.callOnTimeout(this, [this](){
+    themeTimer.callOnTimeout(this, [this](){
-        m_themeTimer.stop();
+        themeTimer.stop();
         doNotifySystemThemeHasChangedOrNot();
     });
-    m_wallpaperTimer.setInterval(kEventDelayInterval);
+    wallpaperTimer.setInterval(kEventDelayInterval);
-    m_wallpaperTimer.callOnTimeout(this, [this](){
+    wallpaperTimer.callOnTimeout(this, [this](){
-        m_wallpaperTimer.stop();
+        wallpaperTimer.stop();
         doNotifyWallpaperHasChangedOrNot();
     });
-    m_systemTheme = (Utils::shouldAppsUseDarkMode() ? SystemTheme::Dark : SystemTheme::Light);
+    systemTheme = (Utils::shouldAppsUseDarkMode() ? SystemTheme::Dark : SystemTheme::Light);
-    m_accentColor = Utils::getAccentColor();
+    accentColor = Utils::getAccentColor();
 #ifdef Q_OS_WINDOWS
-    m_colorizationArea = Utils::getDwmColorizationArea();
+    colorizationArea = Utils::getDwmColorizationArea();
 #endif
-    m_wallpaper = Utils::getWallpaperFilePath();
+    wallpaper = Utils::getWallpaperFilePath();
-    m_wallpaperAspectStyle = Utils::getWallpaperAspectStyle();
+    wallpaperAspectStyle = Utils::getWallpaperAspectStyle();
-    DEBUG.nospace() << "Current system theme: " << m_systemTheme
+    DEBUG.nospace() << "Current system theme: " << systemTheme
-                    << ", accent color: " << m_accentColor.name(QColor::HexArgb).toUpper()
+                    << ", accent color: " << accentColor.name(QColor::HexArgb).toUpper()
 #ifdef Q_OS_WINDOWS
-                    << ", colorization area: " << m_colorizationArea
+                    << ", colorization area: " << colorizationArea
 #endif
-                    << ", wallpaper: " << m_wallpaper
+                    << ", wallpaper: " << wallpaper
-                    << ", aspect style: " << m_wallpaperAspectStyle
+                    << ", aspect style: " << wallpaperAspectStyle
                     << '.';
     // We are doing some tricks in our Windows message handling code, so
     // we don't use Qt's theme notifier on Windows. But for other platforms
@@ -389,43 +303,91 @@ FramelessManager *FramelessManager::instance()
 SystemTheme FramelessManager::systemTheme() const
 {
     Q_D(const FramelessManager);
-    return d->systemTheme();
+    // The user's choice has top priority.
+    if (d->isThemeOverrided()) {
+        return d->overrideTheme.value();
+    }
+    return d->systemTheme;
 }
 
 QColor FramelessManager::systemAccentColor() const
 {
     Q_D(const FramelessManager);
-    return d->systemAccentColor();
+    return d->accentColor;
 }
 
 QString FramelessManager::wallpaper() const
 {
     Q_D(const FramelessManager);
-    return d->wallpaper();
+    return d->wallpaper;
 }
 
 WallpaperAspectStyle FramelessManager::wallpaperAspectStyle() const
 {
     Q_D(const FramelessManager);
-    return d->wallpaperAspectStyle();
+    return d->wallpaperAspectStyle;
-}
-
-void FramelessManager::addWindow(FramelessParamsConst params)
-{
-    Q_D(FramelessManager);
-    d->addWindow(params);
-}
-
-void FramelessManager::removeWindow(const WId windowId)
-{
-    Q_D(FramelessManager);
-    d->removeWindow(windowId);
 }
 
 void FramelessManager::setOverrideTheme(const SystemTheme theme)
 {
     Q_D(FramelessManager);
-    d->setOverrideTheme(theme);
+    if ((!d->overrideTheme.has_value() && (theme == SystemTheme::Unknown))
+        || (d->overrideTheme.has_value() && (d->overrideTheme.value() == theme))) {
+        return;
+    }
+    if (theme == SystemTheme::Unknown) {
+        d->overrideTheme = std::nullopt;
+    } else {
+        d->overrideTheme = theme;
+    }
+    Q_EMIT systemThemeChanged();
+}
+
+void FramelessManager::addWindow(FramelessParamsConst params)
+{
+    Q_ASSERT(params);
+    if (!params) {
+        return;
+    }
+    const WId windowId = params->getWindowId();
+    if (g_framelessManagerData()->contains(windowId)) {
+        return;
+    }
+    g_framelessManagerData()->append(windowId);
+    static const bool pureQt = usePureQtImplementation();
+    if (pureQt) {
+        FramelessHelperQt::addWindow(params);
+    }
+#ifdef Q_OS_WINDOWS
+    if (!pureQt) {
+        FramelessHelperWin::addWindow(params);
+    }
+    std::ignore = Utils::installWindowProcHook(windowId, params);
+#endif
+    connect(params->getWindowHandle(), &QWindow::destroyed, FramelessManager::instance(), [this, windowId](){ removeWindow(windowId); });
+}
+
+void FramelessManager::removeWindow(const WId windowId)
+{
+    Q_ASSERT(windowId);
+    if (!windowId) {
+        return;
+    }
+    if (!g_framelessManagerData()->contains(windowId)) {
+        return;
+    }
+    g_framelessManagerData()->removeAll(windowId);
+    static const bool pureQt = usePureQtImplementation();
+    if (pureQt) {
+        FramelessHelperQt::removeWindow(windowId);
+    }
+#ifdef Q_OS_WINDOWS
+    if (!pureQt) {
+        FramelessHelperWin::removeWindow(windowId);
+    }
+    std::ignore = Utils::uninstallWindowProcHook(windowId);
+    std::ignore = Utils::removeMicaWindow(windowId);
+#endif
 }
 
 FRAMELESSHELPER_END_NAMESPACE

src/core/micamaterial.cpp

@@ -680,70 +680,6 @@ void MicaMaterialPrivate::updateMaterialBrush()
     }
 }
 
-void MicaMaterialPrivate::paint(QPainter *painter, const QRect &rect, const bool active)
-{
-    Q_ASSERT(painter);
-    if (!painter) {
-        return;
-    }
-    prepareGraphicsResources();
-    static constexpr const QPoint originPoint = {0, 0};
-    const QRect wallpaperRect = { originPoint, wallpaperSize };
-    const QRect mappedRect = mapToWallpaper(rect);
-    painter->save();
-    // Same as above. Speed is more important here.
-    painter->setRenderHint(QPainter::Antialiasing, false);
-    painter->setRenderHint(QPainter::TextAntialiasing, false);
-    painter->setRenderHint(QPainter::SmoothPixmapTransform, false);
-    if (active) {
-        const QRect intersectedRect = wallpaperRect.intersected(mappedRect);
-        g_imageData()->mutex.lock();
-        painter->drawPixmap(originPoint, g_imageData()->blurredWallpaper, intersectedRect);
-        g_imageData()->mutex.unlock();
-        if (intersectedRect != mappedRect) {
-            static constexpr const auto xOffset = QPoint{ 1, 0 };
-            if (mappedRect.y() + mappedRect.height() <= wallpaperRect.height()) {
-                const QRect outerRect = { intersectedRect.topRight() + xOffset, QSize{ mappedRect.width() - intersectedRect.width(), intersectedRect.height() } };
-                const QPoint outerRectOriginPoint = originPoint + QPoint{ intersectedRect.width(), 0 } + xOffset;
-                const QRect mappedOuterRect = mapToWallpaper(outerRect);
-                const QMutexLocker locker(&g_imageData()->mutex);
-                painter->drawPixmap(outerRectOriginPoint, g_imageData()->blurredWallpaper, mappedOuterRect);
-            } else {
-                static constexpr const auto yOffset = QPoint{ 0, 1 };
-                const QRect outerRectBottom = { intersectedRect.bottomLeft() + yOffset, QSize{ intersectedRect.width(), mappedRect.height() - intersectedRect.height() } };
-                const QPoint outerRectBottomOriginPoint = originPoint + QPoint{ 0, intersectedRect.height() } + yOffset;
-                const QRect mappedOuterRectBottom = mapToWallpaper(outerRectBottom);
-                g_imageData()->mutex.lock();
-                painter->drawPixmap(outerRectBottomOriginPoint, g_imageData()->blurredWallpaper, mappedOuterRectBottom);
-                g_imageData()->mutex.unlock();
-                if (mappedRect.x() + mappedRect.width() > wallpaperRect.width()) {
-                    const QRect outerRectRight = { intersectedRect.topRight() + xOffset, QSize{ mappedRect.width() - intersectedRect.width(), intersectedRect.height() } };
-                    const QPoint outerRectRightOriginPoint = originPoint + QPoint{ intersectedRect.width(), 0 } + xOffset;
-                    const QRect mappedOuterRectRight = mapToWallpaper(outerRectRight);
-                    const QRect outerRectCorner = { intersectedRect.bottomRight() + xOffset + yOffset, QSize{ outerRectRight.width(), outerRectBottom.height() } };
-                    const QPoint outerRectCornerOriginPoint = originPoint + QPoint{ intersectedRect.width(), intersectedRect.height() } + xOffset + yOffset;
-                    const QRect mappedOuterRectCorner = mapToWallpaper(outerRectCorner);
-                    const QMutexLocker locker(&g_imageData()->mutex);
-                    painter->drawPixmap(outerRectRightOriginPoint, g_imageData()->blurredWallpaper, mappedOuterRectRight);
-                    painter->drawPixmap(outerRectCornerOriginPoint, g_imageData()->blurredWallpaper, mappedOuterRectCorner);
-                }
-            }
-        }
-    }
-    painter->setCompositionMode(QPainter::CompositionMode_SourceOver);
-    painter->setOpacity(qreal(1));
-    painter->fillRect(QRect{originPoint, mappedRect.size()}, [this, active]() -> QBrush {
-        if (!fallbackEnabled || active) {
-            return micaBrush;
-        }
-        if (fallbackColor.isValid()) {
-            return fallbackColor;
-        }
-        return systemFallbackColor();
-    }());
-    painter->restore();
-}
-
 void MicaMaterialPrivate::forceRebuildWallpaper()
 {
     wallpaperSize = QGuiApplication::primaryScreen()->size();
@@ -962,8 +898,67 @@ void MicaMaterial::setFallbackEnabled(const bool value)
 
 void MicaMaterial::paint(QPainter *painter, const QRect &rect, const bool active)
 {
+    Q_ASSERT(painter);
+    if (!painter) {
+        return;
+    }
     Q_D(MicaMaterial);
-    d->paint(painter, rect, active);
+    d->prepareGraphicsResources();
+    static constexpr const auto originPoint = QPoint{ 0, 0 };
+    const QRect wallpaperRect = { originPoint, d->wallpaperSize };
+    const QRect mappedRect = d->mapToWallpaper(rect);
+    painter->save();
+    // Same as above. Speed is more important here.
+    painter->setRenderHint(QPainter::Antialiasing, false);
+    painter->setRenderHint(QPainter::TextAntialiasing, false);
+    painter->setRenderHint(QPainter::SmoothPixmapTransform, false);
+    if (active) {
+        const QRect intersectedRect = wallpaperRect.intersected(mappedRect);
+        g_imageData()->mutex.lock();
+        painter->drawPixmap(originPoint, g_imageData()->blurredWallpaper, intersectedRect);
+        g_imageData()->mutex.unlock();
+        if (intersectedRect != mappedRect) {
+            static constexpr const auto xOffset = QPoint{ 1, 0 };
+            if (mappedRect.y() + mappedRect.height() <= wallpaperRect.height()) {
+                const QRect outerRect = { intersectedRect.topRight() + xOffset, QSize{ mappedRect.width() - intersectedRect.width(), intersectedRect.height() } };
+                const QPoint outerRectOriginPoint = originPoint + QPoint{ intersectedRect.width(), 0 } + xOffset;
+                const QRect mappedOuterRect = d->mapToWallpaper(outerRect);
+                const QMutexLocker locker(&g_imageData()->mutex);
+                painter->drawPixmap(outerRectOriginPoint, g_imageData()->blurredWallpaper, mappedOuterRect);
+            } else {
+                static constexpr const auto yOffset = QPoint{ 0, 1 };
+                const QRect outerRectBottom = { intersectedRect.bottomLeft() + yOffset, QSize{ intersectedRect.width(), mappedRect.height() - intersectedRect.height() } };
+                const QPoint outerRectBottomOriginPoint = originPoint + QPoint{ 0, intersectedRect.height() } + yOffset;
+                const QRect mappedOuterRectBottom = d->mapToWallpaper(outerRectBottom);
+                g_imageData()->mutex.lock();
+                painter->drawPixmap(outerRectBottomOriginPoint, g_imageData()->blurredWallpaper, mappedOuterRectBottom);
+                g_imageData()->mutex.unlock();
+                if (mappedRect.x() + mappedRect.width() > wallpaperRect.width()) {
+                    const QRect outerRectRight = { intersectedRect.topRight() + xOffset, QSize{ mappedRect.width() - intersectedRect.width(), intersectedRect.height() } };
+                    const QPoint outerRectRightOriginPoint = originPoint + QPoint{ intersectedRect.width(), 0 } + xOffset;
+                    const QRect mappedOuterRectRight = d->mapToWallpaper(outerRectRight);
+                    const QRect outerRectCorner = { intersectedRect.bottomRight() + xOffset + yOffset, QSize{ outerRectRight.width(), outerRectBottom.height() } };
+                    const QPoint outerRectCornerOriginPoint = originPoint + QPoint{ intersectedRect.width(), intersectedRect.height() } + xOffset + yOffset;
+                    const QRect mappedOuterRectCorner = d->mapToWallpaper(outerRectCorner);
+                    const QMutexLocker locker(&g_imageData()->mutex);
+                    painter->drawPixmap(outerRectRightOriginPoint, g_imageData()->blurredWallpaper, mappedOuterRectRight);
+                    painter->drawPixmap(outerRectCornerOriginPoint, g_imageData()->blurredWallpaper, mappedOuterRectCorner);
+                }
+            }
+        }
+    }
+    painter->setCompositionMode(QPainter::CompositionMode_SourceOver);
+    painter->setOpacity(qreal(1));
+    painter->fillRect(QRect{originPoint, mappedRect.size()}, [d, active]() -> QBrush {
+        if (!d->fallbackEnabled || active) {
+            return d->micaBrush;
+        }
+        if (d->fallbackColor.isValid()) {
+            return d->fallbackColor;
+        }
+        return d->systemFallbackColor();
+    }());
+    painter->restore();
 }
 
 FRAMELESSHELPER_END_NAMESPACE

src/core/utils_win.cpp

@@ -242,7 +242,7 @@ struct Win32Message
 };
 
 #define DEFINE_WIN32_MESSAGE(Message) Win32Message{ Message, #Message },
-static constexpr const std::array<Win32Message, 252> g_win32MessageMap =
+static constexpr const std::array<Win32Message, 333> g_win32MessageMap =
 {
     DEFINE_WIN32_MESSAGE(WM_NULL)
     DEFINE_WIN32_MESSAGE(WM_CREATE)
@@ -376,7 +376,6 @@ static constexpr const std::array<Win32Message, 252> g_win32MessageMap =
     DEFINE_WIN32_MESSAGE(WM_CTLCOLORDLG)
     DEFINE_WIN32_MESSAGE(WM_CTLCOLORSCROLLBAR)
     DEFINE_WIN32_MESSAGE(WM_CTLCOLORSTATIC)
-    DEFINE_WIN32_MESSAGE(MN_GETHMENU)
     DEFINE_WIN32_MESSAGE(WM_MOUSEMOVE) // WM_MOUSEFIRST
     DEFINE_WIN32_MESSAGE(WM_LBUTTONDOWN)
     DEFINE_WIN32_MESSAGE(WM_LBUTTONUP)
@@ -433,7 +432,6 @@ static constexpr const std::array<Win32Message, 252> g_win32MessageMap =
     DEFINE_WIN32_MESSAGE(WM_TOUCHHITTESTING)
     DEFINE_WIN32_MESSAGE(WM_POINTERWHEEL)
     DEFINE_WIN32_MESSAGE(WM_POINTERHWHEEL)
-    DEFINE_WIN32_MESSAGE(DM_POINTERHITTEST)
     DEFINE_WIN32_MESSAGE(WM_POINTERROUTEDTO)
     DEFINE_WIN32_MESSAGE(WM_POINTERROUTEDAWAY)
     DEFINE_WIN32_MESSAGE(WM_POINTERROUTEDRELEASED)
@@ -496,6 +494,90 @@ static constexpr const std::array<Win32Message, 252> g_win32MessageMap =
     DEFINE_WIN32_MESSAGE(WM_PENWINLAST)
     DEFINE_WIN32_MESSAGE(WM_APP)
     DEFINE_WIN32_MESSAGE(WM_USER)
+    // Undocumented messages:
+    DEFINE_WIN32_MESSAGE(WM_SIZEWAIT)
+    DEFINE_WIN32_MESSAGE(WM_SETVISIBLE)
+    DEFINE_WIN32_MESSAGE(WM_SYSTEMERROR)
+    DEFINE_WIN32_MESSAGE(WM_CTLCOLOR)
+    DEFINE_WIN32_MESSAGE(WM_LOGOFF)
+    DEFINE_WIN32_MESSAGE(WM_ALTTABACTIVE)
+    DEFINE_WIN32_MESSAGE(WM_SHELLNOTIFY)
+    DEFINE_WIN32_MESSAGE(WM_ISACTIVEICON)
+    DEFINE_WIN32_MESSAGE(WM_QUERYPARKICON)
+    DEFINE_WIN32_MESSAGE(WM_WINHELP)
+    DEFINE_WIN32_MESSAGE(WM_FULLSCREEN)
+    DEFINE_WIN32_MESSAGE(WM_CLIENTSHUTDOWN)
+    DEFINE_WIN32_MESSAGE(WM_DDEMLEVENT)
+    DEFINE_WIN32_MESSAGE(WM_TESTING)
+    DEFINE_WIN32_MESSAGE(WM_OTHERWINDOWCREATED)
+    DEFINE_WIN32_MESSAGE(WM_OTHERWINDOWDESTROYED)
+    DEFINE_WIN32_MESSAGE(WM_COPYGLOBALDATA)
+    DEFINE_WIN32_MESSAGE(WM_KEYF1)
+    DEFINE_WIN32_MESSAGE(WM_ACCESS_WINDOW)
+    DEFINE_WIN32_MESSAGE(WM_FINALDESTROY)
+    DEFINE_WIN32_MESSAGE(WM_MEASUREITEM_CLIENTDATA)
+    DEFINE_WIN32_MESSAGE(WM_SYNCTASK)
+    DEFINE_WIN32_MESSAGE(WM_KLUDGEMINRECT)
+    DEFINE_WIN32_MESSAGE(WM_LPKDRAWSWITCHWND)
+    DEFINE_WIN32_MESSAGE(WM_UAHDESTROYWINDOW)
+    DEFINE_WIN32_MESSAGE(WM_UAHDRAWMENU)
+    DEFINE_WIN32_MESSAGE(WM_UAHDRAWMENUITEM)
+    DEFINE_WIN32_MESSAGE(WM_UAHINITMENU)
+    DEFINE_WIN32_MESSAGE(WM_UAHMEASUREMENUITEM)
+    DEFINE_WIN32_MESSAGE(WM_UAHNCPAINTMENUPOPUP)
+    DEFINE_WIN32_MESSAGE(WM_UAHUPDATE)
+    DEFINE_WIN32_MESSAGE(WM_NCUAHDRAWCAPTION)
+    DEFINE_WIN32_MESSAGE(WM_NCUAHDRAWFRAME)
+    DEFINE_WIN32_MESSAGE(WM_YOMICHAR)
+    DEFINE_WIN32_MESSAGE(WM_CONVERTREQUEST)
+    DEFINE_WIN32_MESSAGE(WM_CONVERTRESULT)
+    DEFINE_WIN32_MESSAGE(WM_INTERIM)
+    DEFINE_WIN32_MESSAGE(WM_SYSTIMER)
+    DEFINE_WIN32_MESSAGE(WM_GESTUREINPUT)
+    DEFINE_WIN32_MESSAGE(WM_GESTURENOTIFIED)
+    DEFINE_WIN32_MESSAGE(WM_LBTRACKPOINT)
+    DEFINE_WIN32_MESSAGE(WM_DROPOBJECT)
+    DEFINE_WIN32_MESSAGE(WM_QUERYDROPOBJECT)
+    DEFINE_WIN32_MESSAGE(WM_BEGINDRAG)
+    DEFINE_WIN32_MESSAGE(WM_DRAGLOOP)
+    DEFINE_WIN32_MESSAGE(WM_DRAGSELECT)
+    DEFINE_WIN32_MESSAGE(WM_DRAGMOVE)
+    DEFINE_WIN32_MESSAGE(WM_STOPINERTIA)
+    DEFINE_WIN32_MESSAGE(WM_ENDINERTIA)
+    DEFINE_WIN32_MESSAGE(WM_EDGYINERTIA)
+    DEFINE_WIN32_MESSAGE(WM_VISIBILITYCHANGED)
+    DEFINE_WIN32_MESSAGE(WM_VIEWSTATECHANGED)
+    DEFINE_WIN32_MESSAGE(WM_UNREGISTER_WINDOW_SERVICES)
+    DEFINE_WIN32_MESSAGE(WM_CONSOLIDATED)
+    DEFINE_WIN32_MESSAGE(WM_IME_REPORT)
+    DEFINE_WIN32_MESSAGE(WM_IME_SYSTEM)
+    DEFINE_WIN32_MESSAGE(WM_POINTERDEVICEADDED)
+    DEFINE_WIN32_MESSAGE(WM_POINTERDEVICEDELETED)
+    DEFINE_WIN32_MESSAGE(WM_FLICK)
+    DEFINE_WIN32_MESSAGE(WM_FLICKINTERNAL)
+    DEFINE_WIN32_MESSAGE(WM_BRIGHTNESSCHANGED)
+    DEFINE_WIN32_MESSAGE(WM_SYSMENU)
+    DEFINE_WIN32_MESSAGE(WM_HOOKMSG)
+    DEFINE_WIN32_MESSAGE(WM_EXITPROCESS)
+    DEFINE_WIN32_MESSAGE(WM_WAKETHREAD)
+    DEFINE_WIN32_MESSAGE(WM_UAHINIT)
+    DEFINE_WIN32_MESSAGE(WM_DESKTOPNOTIFY)
+    DEFINE_WIN32_MESSAGE(WM_DWMEXILEFRAME)
+    DEFINE_WIN32_MESSAGE(WM_MAGNIFICATION_STARTED)
+    DEFINE_WIN32_MESSAGE(WM_MAGNIFICATION_ENDED)
+    DEFINE_WIN32_MESSAGE(WM_DWMTHUMBNAILSIZECHANGED)
+    DEFINE_WIN32_MESSAGE(WM_MAGNIFICATION_OUTPUT)
+    DEFINE_WIN32_MESSAGE(WM_BSDRDATA)
+    DEFINE_WIN32_MESSAGE(WM_DWMTRANSITIONSTATECHANGED)
+    DEFINE_WIN32_MESSAGE(WM_KEYBOARDCORRECTIONCALLOUT)
+    DEFINE_WIN32_MESSAGE(WM_KEYBOARDCORRECTIONACTION)
+    DEFINE_WIN32_MESSAGE(WM_UIACTION)
+    DEFINE_WIN32_MESSAGE(WM_ROUTED_UI_EVENT)
+    DEFINE_WIN32_MESSAGE(WM_MEASURECONTROL)
+    DEFINE_WIN32_MESSAGE(WM_GETACTIONTEXT)
+    DEFINE_WIN32_MESSAGE(WM_FORWARDKEYDOWN)
+    DEFINE_WIN32_MESSAGE(WM_FORWARDKEYUP)
+    DEFINE_WIN32_MESSAGE(WM_NOTIFYWOW)
 };
 #undef DEFINE_WIN32_MESSAGE
 
@@ -804,8 +886,7 @@ static constexpr const std::array<Win32Message, 252> g_win32MessageMap =
 {
     if (edges == Qt::Edges{}) {
         return 0;
-    }
+    } else if (edges == (Qt::LeftEdge)) {
-    if (edges == (Qt::LeftEdge)) {
         return 0xF001; // SC_SIZELEFT
     } else if (edges == (Qt::RightEdge)) {
         return 0xF002; // SC_SIZERIGHT
@@ -840,22 +921,15 @@ static constexpr const std::array<Win32Message, 252> g_win32MessageMap =
 
 [[nodiscard]] static inline bool isNonClientMessage(const UINT message)
 {
-    if ((message >= WM_NCCREATE) && (message <= WM_NCACTIVATE)) {
+    if (((message >= WM_NCCREATE) && (message <= WM_NCACTIVATE))
+            || ((message >= WM_NCMOUSEMOVE) && (message <= WM_NCMBUTTONDBLCLK))
+            || ((message >= WM_NCXBUTTONDOWN) && (message <= WM_NCXBUTTONDBLCLK))
+            || ((message >= WM_NCPOINTERUPDATE) && (message <= WM_NCPOINTERUP))
+            || ((message == WM_NCMOUSEHOVER) || (message == WM_NCMOUSELEAVE))) {
         return true;
-    }
+    } else {
-    if ((message >= WM_NCMOUSEMOVE) && (message <= WM_NCMBUTTONDBLCLK)) {
-        return true;
-    }
-    if ((message >= WM_NCXBUTTONDOWN) && (message <= WM_NCXBUTTONDBLCLK)) {
-        return true;
-    }
-    if ((message >= WM_NCPOINTERUPDATE) && (message <= WM_NCPOINTERUP)) {
-        return true;
-    }
-    if ((message == WM_NCMOUSEHOVER) || (message == WM_NCMOUSELEAVE)) {
-        return true;
-    }
         return false;
+    }
 }
 
 [[nodiscard]] static inline bool isMouseMessage(const UINT message, bool *isNonClient = nullptr)
@@ -866,16 +940,16 @@ static constexpr const std::array<Win32Message, 252> g_win32MessageMap =
             *isNonClient = false;
         }
         return true;
-    }
+    } else if (((message >= WM_NCMOUSEMOVE) && (message <= WM_NCMBUTTONDBLCLK))
-    if (((message >= WM_NCMOUSEMOVE) && (message <= WM_NCMBUTTONDBLCLK))
             || ((message >= WM_NCXBUTTONDOWN) && (message <= WM_NCXBUTTONDBLCLK))
             || ((message == WM_NCMOUSEHOVER) || (message == WM_NCMOUSELEAVE))) {
         if (isNonClient) {
             *isNonClient = true;
         }
         return true;
-    }
+    } else {
         return false;
+    }
 }
 
 [[nodiscard]] static inline bool usePureQtImplementation()
@@ -892,16 +966,32 @@ static constexpr const std::array<Win32Message, 252> g_win32MessageMap =
         return 0;
     }
     if (isWin32MessageDebuggingEnabled()) {
-        const auto it = std::find(g_win32MessageMap.cbegin(), g_win32MessageMap.cend(), Win32Message{ uMsg, nullptr });
+        const QString messageCodeHex = FRAMELESSHELPER_STRING_LITERAL("0x") + QString::number(uMsg, 16).toUpper().rightJustified(4, u'0');
-        if (it != g_win32MessageMap.cend()) {
         QString text = {};
         QTextStream stream(&text);
-            stream << "Win32 message received: " << it->Str << " (0x"
+        stream << "Win32 message received: ";
-                   << QString::number(uMsg, 16).toUpper().rightJustified(4, u'0') << ')';
+        if (uMsg >= WM_APP) {
+            const UINT diff = (uMsg - WM_APP);
+            stream << "WM_APP + " << diff << " (" << messageCodeHex
+                   << ") [private message owned by current application]";
+        } else if (uMsg >= WM_USER) {
+            const UINT diff = (uMsg - WM_USER);
+            stream << "WM_USER + " << diff << " (" << messageCodeHex
+                   << ") [private message owned by all kinds of controls]";
+        } else {
+            const auto it = std::find(g_win32MessageMap.cbegin(), g_win32MessageMap.cend(), Win32Message{ uMsg, nullptr });
+            if (it == g_win32MessageMap.cend()) {
+                stream << "UNKNOWN";
+            } else {
+                stream << it->Str;
+            }
+            stream << " (" << messageCodeHex << ')';
+            auto screenPos = POINT{ 0, 0 };
+            auto clientPos = POINT{ 0, 0 };
             bool isNonClientMouseMessage = false;
             if (isMouseMessage(uMsg, &isNonClientMouseMessage)) {
                 if (isNonClientMouseMessage) {
-                    const auto screenPos = [uMsg, lParam]() -> POINT {
+                    screenPos = [uMsg, lParam]() -> POINT {
                         if (uMsg == WM_NCMOUSELEAVE) {
                             const DWORD dwScreenPos = ::GetMessagePos();
                             return POINT{ GET_X_LPARAM(dwScreenPos), GET_Y_LPARAM(dwScreenPos) };
@@ -909,35 +999,29 @@ static constexpr const std::array<Win32Message, 252> g_win32MessageMap =
                             return POINT{ GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam) };
                         }
                     }();
-                    POINT clientPos = screenPos;
+                    clientPos = screenPos;
                     if (::ScreenToClient(hWnd, &clientPos) == FALSE) {
                         WARNING << Utils::getSystemErrorMessage(kScreenToClient);
                         clientPos = {};
                     }
-                    stream << ", screen coordinate: POINT(x: " << screenPos.x << ", y: "
-                           << screenPos.y << "), client coordinate: POINT(x: "
-                           << clientPos.x << ", y: " << clientPos.y << ')';
                 } else {
-                    const auto clientPos = [hWnd, uMsg, lParam]() -> POINT {
                     if (uMsg == WM_MOUSELEAVE) {
                         const DWORD dwScreenPos = ::GetMessagePos();
-                            const auto screenPos = POINT{ GET_X_LPARAM(dwScreenPos), GET_Y_LPARAM(dwScreenPos) };
+                        screenPos = POINT{ GET_X_LPARAM(dwScreenPos), GET_Y_LPARAM(dwScreenPos) };
-                            POINT clientPos = screenPos;
+                        clientPos = screenPos;
                         if (::ScreenToClient(hWnd, &clientPos) == FALSE) {
                             WARNING << Utils::getSystemErrorMessage(kScreenToClient);
-                                return {};
+                            clientPos = {};
-                            } else {
-                                return clientPos;
                         }
                     } else {
-                            return POINT{ GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam) };
+                        clientPos = POINT{ GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam) };
-                        }
+                        screenPos = clientPos;
-                    }();
-                    POINT screenPos = clientPos;
                         if (::ClientToScreen(hWnd, &screenPos) == FALSE) {
                             WARNING << Utils::getSystemErrorMessage(kClientToScreen);
                             screenPos = {};
                         }
+                    }
+                }
                 stream << ", screen coordinate: POINT(x: " << screenPos.x << ", y: "
                        << screenPos.y << "), client coordinate: POINT(x: "
                        << clientPos.x << ", y: " << clientPos.y << ')';
@@ -945,7 +1029,6 @@ static constexpr const std::array<Win32Message, 252> g_win32MessageMap =
         }
         DEBUG.noquote() << text;
     }
-    }
     const auto windowId = reinterpret_cast<WId>(hWnd);
     const auto it = g_win32UtilsData()->data.constFind(windowId);
     if (it == g_win32UtilsData()->data.constEnd()) {

src/core/windowborderpainter.cpp

@@ -59,7 +59,6 @@ WindowBorderPainterPrivate::WindowBorderPainterPrivate(WindowBorderPainter *q) :
         return;
     }
     q_ptr = q;
-    initialize();
 }
 
 WindowBorderPainterPrivate::~WindowBorderPainterPrivate() = default;
@@ -82,46 +81,85 @@ const WindowBorderPainterPrivate *WindowBorderPainterPrivate::get(const WindowBo
     return q->d_func();
 }
 
-int WindowBorderPainterPrivate::getNativeBorderThickness()
+WindowBorderPainter::WindowBorderPainter(QObject *parent)
+    : QObject(parent), d_ptr(new WindowBorderPainterPrivate(this))
+{
+    connect(FramelessManager::instance(), &FramelessManager::systemThemeChanged, this, &WindowBorderPainter::nativeBorderChanged);
+    connect(this, &WindowBorderPainter::nativeBorderChanged, this, &WindowBorderPainter::shouldRepaint);
+}
+
+WindowBorderPainter::~WindowBorderPainter() = default;
+
+int WindowBorderPainter::thickness() const
+{
+    Q_D(const WindowBorderPainter);
+    return d->thickness.value_or(nativeThickness());
+}
+
+WindowEdges WindowBorderPainter::edges() const
+{
+    Q_D(const WindowBorderPainter);
+    return d->edges.value_or(nativeEdges());
+}
+
+QColor WindowBorderPainter::activeColor() const
+{
+    Q_D(const WindowBorderPainter);
+    return d->activeColor.value_or(nativeActiveColor());
+}
+
+QColor WindowBorderPainter::inactiveColor() const
+{
+    Q_D(const WindowBorderPainter);
+    return d->inactiveColor.value_or(nativeInactiveColor());
+}
+
+int WindowBorderPainter::nativeThickness() const
 {
     // Qt will scale it to the appropriate value for us automatically,
     // based on the current system DPI and scale factor rounding policy.
     return kDefaultWindowFrameBorderThickness;
 }
 
-QColor WindowBorderPainterPrivate::getNativeBorderColor(const bool active)
+WindowEdges WindowBorderPainter::nativeEdges() const
-{
-    return Utils::getFrameBorderColor(active);
-}
-
-WindowEdges WindowBorderPainterPrivate::getNativeBorderEdges()
 {
 #ifdef Q_OS_WINDOWS
     if (Utils::isWindowFrameBorderVisible() && !WindowsVersionHelper::isWin11OrGreater()) {
-        return {WindowEdge::Top};
+        return { WindowEdge::Top };
     }
 #endif
     return {};
 }
 
-void WindowBorderPainterPrivate::paint(QPainter *painter, const QSize &size, const bool active) const
+QColor WindowBorderPainter::nativeActiveColor() const
+{
+    return Utils::getFrameBorderColor(true);
+}
+
+QColor WindowBorderPainter::nativeInactiveColor() const
+{
+    return Utils::getFrameBorderColor(false);
+}
+
+void WindowBorderPainter::paint(QPainter *painter, const QSize &size, const bool active)
 {
     Q_ASSERT(painter);
     Q_ASSERT(!size.isEmpty());
     if (!painter || size.isEmpty()) {
         return;
     }
+    Q_D(WindowBorderPainter);
 #if (QT_VERSION >= QT_VERSION_CHECK(6, 0, 0))
     QList<QLineF> lines = {};
 #else
     QVector<QLineF> lines = {};
 #endif
     static constexpr const auto gap = qreal(0.5);
-    const QPointF leftTop = {gap, gap};
+    const auto leftTop = QPointF{ gap, gap };
-    const QPointF rightTop = {qreal(size.width()) - gap, gap};
+    const auto rightTop = QPointF{ qreal(size.width()) - gap, leftTop.y() };
-    const QPointF rightBottom = {qreal(size.width()) - gap, qreal(size.height()) - gap};
+    const auto rightBottom = QPointF{ rightTop.x(), qreal(size.height()) - gap };
-    const QPointF leftBottom = {gap, qreal(size.height()) - gap};
+    const auto leftBottom = QPointF{ leftTop.x(), rightBottom.y() };
-    const WindowEdges edges = m_edges.value_or(getNativeBorderEdges());
+    const WindowEdges edges = d->edges.value_or(nativeEdges());
     if (edges & WindowEdge::Left) {
         lines.append({leftBottom, leftTop});
     }
@@ -140,93 +178,24 @@ void WindowBorderPainterPrivate::paint(QPainter *painter, const QSize &size, con
     painter->save();
     painter->setRenderHints(QPainter::Antialiasing | QPainter::TextAntialiasing | QPainter::SmoothPixmapTransform);
     QPen pen = {};
-    pen.setColor([active, this]() -> QColor {
+    pen.setColor([this, d, active]() -> QColor {
         QColor color = {};
         if (active) {
-            color = m_activeColor.value_or(getNativeBorderColor(true));
+            color = d->activeColor.value_or(nativeActiveColor());
         } else {
-            color = m_inactiveColor.value_or(getNativeBorderColor(false));
+            color = d->inactiveColor.value_or(nativeInactiveColor());
         }
         if (color.isValid()) {
             return color;
         }
         return (active ? kDefaultBlackColor : kDefaultDarkGrayColor);
     }());
-    pen.setWidth(m_thickness.value_or(getNativeBorderThickness()));
+    pen.setWidth(d->thickness.value_or(nativeThickness()));
     painter->setPen(pen);
     painter->drawLines(lines);
     painter->restore();
 }
 
-void WindowBorderPainterPrivate::initialize()
-{
-    Q_Q(WindowBorderPainter);
-    connect(FramelessManager::instance(), &FramelessManager::systemThemeChanged,
-        q, &WindowBorderPainter::nativeBorderChanged);
-    connect(q, &WindowBorderPainter::nativeBorderChanged, q, &WindowBorderPainter::shouldRepaint);
-}
-
-WindowBorderPainter::WindowBorderPainter(QObject *parent)
-    : QObject(parent), d_ptr(new WindowBorderPainterPrivate(this))
-{
-}
-
-WindowBorderPainter::~WindowBorderPainter() = default;
-
-int WindowBorderPainter::thickness() const
-{
-    Q_D(const WindowBorderPainter);
-    return d->m_thickness.value_or(d->getNativeBorderThickness());
-}
-
-WindowEdges WindowBorderPainter::edges() const
-{
-    Q_D(const WindowBorderPainter);
-    return d->m_edges.value_or(d->getNativeBorderEdges());
-}
-
-QColor WindowBorderPainter::activeColor() const
-{
-    Q_D(const WindowBorderPainter);
-    return d->m_activeColor.value_or(d->getNativeBorderColor(true));
-}
-
-QColor WindowBorderPainter::inactiveColor() const
-{
-    Q_D(const WindowBorderPainter);
-    return d->m_inactiveColor.value_or(d->getNativeBorderColor(false));
-}
-
-int WindowBorderPainter::nativeThickness() const
-{
-    Q_D(const WindowBorderPainter);
-    return d->getNativeBorderThickness();
-}
-
-WindowEdges WindowBorderPainter::nativeEdges() const
-{
-    Q_D(const WindowBorderPainter);
-    return d->getNativeBorderEdges();
-}
-
-QColor WindowBorderPainter::nativeActiveColor() const
-{
-    Q_D(const WindowBorderPainter);
-    return d->getNativeBorderColor(true);
-}
-
-QColor WindowBorderPainter::nativeInactiveColor() const
-{
-    Q_D(const WindowBorderPainter);
-    return d->getNativeBorderColor(false);
-}
-
-void WindowBorderPainter::paint(QPainter *painter, const QSize &size, const bool active) const
-{
-    Q_D(const WindowBorderPainter);
-    d->paint(painter, size, active);
-}
-
 void WindowBorderPainter::setThickness(const int value)
 {
     Q_ASSERT(value >= 0);
@@ -238,7 +207,7 @@ void WindowBorderPainter::setThickness(const int value)
         return;
     }
     Q_D(WindowBorderPainter);
-    d->m_thickness = value;
+    d->thickness = value;
     Q_EMIT thicknessChanged();
     Q_EMIT shouldRepaint();
 }
@@ -249,7 +218,7 @@ void WindowBorderPainter::setEdges(const Global::WindowEdges value)
         return;
     }
     Q_D(WindowBorderPainter);
-    d->m_edges = value;
+    d->edges = value;
     Q_EMIT edgesChanged();
     Q_EMIT shouldRepaint();
 }
@@ -264,7 +233,7 @@ void WindowBorderPainter::setActiveColor(const QColor &value)
         return;
     }
     Q_D(WindowBorderPainter);
-    d->m_activeColor = value;
+    d->activeColor = value;
     Q_EMIT activeColorChanged();
     Q_EMIT shouldRepaint();
 }
@@ -279,7 +248,7 @@ void WindowBorderPainter::setInactiveColor(const QColor &value)
         return;
     }
     Q_D(WindowBorderPainter);
-    d->m_inactiveColor = value;
+    d->inactiveColor = value;
     Q_EMIT inactiveColorChanged();
     Q_EMIT shouldRepaint();
 }

src/quick/framelessquickapplicationwindow.cpp

@@ -59,7 +59,6 @@ FramelessQuickApplicationWindowPrivate::FramelessQuickApplicationWindowPrivate(F
         return;
     }
     q_ptr = q;
-    initialize();
 }
 
 FramelessQuickApplicationWindowPrivate::~FramelessQuickApplicationWindowPrivate() = default;
@@ -82,156 +81,90 @@ const FramelessQuickApplicationWindowPrivate *FramelessQuickApplicationWindowPri
     return pub->d_func();
 }
 
-bool FramelessQuickApplicationWindowPrivate::isHidden() const
-{
-    Q_Q(const FramelessQuickApplicationWindow);
-    return (q->visibility() == FramelessQuickApplicationWindow::Hidden);
-}
-
-bool FramelessQuickApplicationWindowPrivate::isNormal() const
-{
-    Q_Q(const FramelessQuickApplicationWindow);
-    return (q->visibility() == FramelessQuickApplicationWindow::Windowed);
-}
-
-bool FramelessQuickApplicationWindowPrivate::isMinimized() const
-{
-    Q_Q(const FramelessQuickApplicationWindow);
-    return (q->visibility() == FramelessQuickApplicationWindow::Minimized);
-}
-
-bool FramelessQuickApplicationWindowPrivate::isMaximized() const
-{
-    Q_Q(const FramelessQuickApplicationWindow);
-    return (q->visibility() == FramelessQuickApplicationWindow::Maximized);
-}
-
-bool FramelessQuickApplicationWindowPrivate::isZoomed() const
-{
-    Q_Q(const FramelessQuickApplicationWindow);
-    return (isMaximized() || (q->visibility() == FramelessQuickApplicationWindow::FullScreen));
-}
-
-bool FramelessQuickApplicationWindowPrivate::isFullScreen() const
-{
-    Q_Q(const FramelessQuickApplicationWindow);
-    return (q->visibility() == FramelessQuickApplicationWindow::FullScreen);
-}
-
-void FramelessQuickApplicationWindowPrivate::showMinimized2()
-{
-    Q_Q(FramelessQuickApplicationWindow);
-#ifdef Q_OS_WINDOWS
-    // Work-around a QtQuick bug: https://bugreports.qt.io/browse/QTBUG-69711
-    // Don't use "SW_SHOWMINIMIZED" because it will activate the current window
-    // instead of the next window in the Z order, which is not the default behavior
-    // of native Win32 applications.
-    ShowWindow(reinterpret_cast<HWND>(q->winId()), SW_MINIMIZE);
-#else
-    q->showMinimized();
-#endif
-}
-
-void FramelessQuickApplicationWindowPrivate::toggleMaximized()
-{
-    Q_Q(FramelessQuickApplicationWindow);
-    if (isMaximized()) {
-        q->showNormal();
-    } else {
-        q->showMaximized();
-    }
-}
-
-void FramelessQuickApplicationWindowPrivate::toggleFullScreen()
-{
-    Q_Q(FramelessQuickApplicationWindow);
-    if (isFullScreen()) {
-        q->setVisibility(m_savedVisibility);
-    } else {
-        m_savedVisibility = q->visibility();
-        q->showFullScreen();
-    }
-}
-
-void FramelessQuickApplicationWindowPrivate::initialize()
-{
-    Q_Q(FramelessQuickApplicationWindow);
-    QQuickItem * const rootItem = q->contentItem();
-    FramelessQuickHelper::get(rootItem)->extendsContentIntoTitleBar();
-    m_windowBorder = new QuickWindowBorder;
-    m_windowBorder->setParent(rootItem);
-    m_windowBorder->setParentItem(rootItem);
-    m_windowBorder->setZ(999); // Make sure it always stays on the top.
-    QQuickItemPrivate::get(m_windowBorder)->anchors()->setFill(rootItem);
-    connect(q, &FramelessQuickApplicationWindow::visibilityChanged, q, [q](){
-        Q_EMIT q->hiddenChanged();
-        Q_EMIT q->normalChanged();
-        Q_EMIT q->minimizedChanged();
-        Q_EMIT q->maximizedChanged();
-        Q_EMIT q->zoomedChanged();
-        Q_EMIT q->fullScreenChanged();
-    });
-}
-
 FramelessQuickApplicationWindow::FramelessQuickApplicationWindow(QWindow *parent)
     : QQuickApplicationWindow(parent), d_ptr(new FramelessQuickApplicationWindowPrivate(this))
 {
+    QQuickItem * const rootItem = contentItem();
+    FramelessQuickHelper::get(rootItem)->extendsContentIntoTitleBar();
+    Q_D(FramelessQuickApplicationWindow);
+    d->windowBorder = new QuickWindowBorder;
+    d->windowBorder->setParent(rootItem);
+    d->windowBorder->setParentItem(rootItem);
+    d->windowBorder->setZ(999); // Make sure it always stays on the top.
+    QQuickItemPrivate::get(d->windowBorder)->anchors()->setFill(rootItem);
+    connect(this, &FramelessQuickApplicationWindow::visibilityChanged, this, [this](){
+        Q_EMIT hiddenChanged();
+        Q_EMIT normalChanged();
+        Q_EMIT minimizedChanged();
+        Q_EMIT maximizedChanged();
+        Q_EMIT zoomedChanged();
+        Q_EMIT fullScreenChanged();
+    });
 }
 
 FramelessQuickApplicationWindow::~FramelessQuickApplicationWindow() = default;
 
 bool FramelessQuickApplicationWindow::isHidden() const
 {
-    Q_D(const FramelessQuickApplicationWindow);
+    return (visibility() == FramelessQuickApplicationWindow::Hidden);
-    return d->isHidden();
 }
 
 bool FramelessQuickApplicationWindow::isNormal() const
 {
-    Q_D(const FramelessQuickApplicationWindow);
+    return (visibility() == FramelessQuickApplicationWindow::Windowed);
-    return d->isNormal();
 }
 
 bool FramelessQuickApplicationWindow::isMinimized() const
 {
-    Q_D(const FramelessQuickApplicationWindow);
+    return (visibility() == FramelessQuickApplicationWindow::Minimized);
-    return d->isMinimized();
 }
 
 bool FramelessQuickApplicationWindow::isMaximized() const
 {
-    Q_D(const FramelessQuickApplicationWindow);
+    return (visibility() == FramelessQuickApplicationWindow::Maximized);
-    return d->isMaximized();
 }
 
 bool FramelessQuickApplicationWindow::isZoomed() const
 {
-    Q_D(const FramelessQuickApplicationWindow);
+    return (isMaximized() || (visibility() == FramelessQuickApplicationWindow::FullScreen));
-    return d->isZoomed();
 }
 
 bool FramelessQuickApplicationWindow::isFullScreen() const
 {
-    Q_D(const FramelessQuickApplicationWindow);
+    return (visibility() == FramelessQuickApplicationWindow::FullScreen);
-    return d->isFullScreen();
 }
 
 void FramelessQuickApplicationWindow::showMinimized2()
 {
-    Q_D(FramelessQuickApplicationWindow);
+#ifdef Q_OS_WINDOWS
-    d->showMinimized2();
+    // Work-around a QtQuick bug: https://bugreports.qt.io/browse/QTBUG-69711
+    // Don't use "SW_SHOWMINIMIZED" because it will activate the current window
+    // instead of the next window in the Z order, which is not the default behavior
+    // of native Win32 applications.
+    ::ShowWindow(reinterpret_cast<HWND>(winId()), SW_MINIMIZE);
+#else
+    showMinimized();
+#endif
 }
 
 void FramelessQuickApplicationWindow::toggleMaximized()
 {
-    Q_D(FramelessQuickApplicationWindow);
+    if (isMaximized()) {
-    d->toggleMaximized();
+        showNormal();
+    } else {
+        showMaximized();
+    }
 }
 
 void FramelessQuickApplicationWindow::toggleFullScreen()
 {
     Q_D(FramelessQuickApplicationWindow);
-    d->toggleFullScreen();
+    if (isFullScreen()) {
+        setVisibility(d->savedVisibility);
+    } else {
+        d->savedVisibility = visibility();
+        showFullScreen();
+    }
 }
 
 void FramelessQuickApplicationWindow::classBegin()

src/quick/framelessquickhelper.cpp

@@ -98,12 +98,7 @@ FramelessQuickHelperPrivate::FramelessQuickHelperPrivate(FramelessQuickHelper *q
     connect(q_ptr, &FramelessQuickHelper::windowChanged, q_ptr, &FramelessQuickHelper::windowChanged2);
 }
 
-FramelessQuickHelperPrivate::~FramelessQuickHelperPrivate()
+FramelessQuickHelperPrivate::~FramelessQuickHelperPrivate() = default;
-{
-    m_destroying = true;
-    extendsContentIntoTitleBar(false);
-    m_extendIntoTitleBar = std::nullopt;
-}
 
 FramelessQuickHelperPrivate *FramelessQuickHelperPrivate::get(FramelessQuickHelper *pub)
 {
@@ -123,48 +118,6 @@ const FramelessQuickHelperPrivate *FramelessQuickHelperPrivate::get(const Framel
     return pub->d_func();
 }
 
-bool FramelessQuickHelperPrivate::isContentExtendedIntoTitleBar() const
-{
-    const FramelessQuickHelperData *data = getWindowData();
-    return (data ? data->ready : false);
-}
-
-void FramelessQuickHelperPrivate::extendsContentIntoTitleBar(const bool value)
-{
-    if (isContentExtendedIntoTitleBar() == value) {
-        return;
-    }
-    if (value) {
-        attach();
-    } else {
-        detach();
-    }
-    m_extendIntoTitleBar = value;
-    if (!m_destroying) {
-        emitSignalForAllInstances("extendsContentIntoTitleBarChanged");
-    }
-}
-
-QQuickItem *FramelessQuickHelperPrivate::getTitleBarItem() const
-{
-    const FramelessQuickHelperData *data = getWindowData();
-    return (data ? data->titleBarItem : nullptr);
-}
-
-void FramelessQuickHelperPrivate::setTitleBarItem(QQuickItem *value)
-{
-    Q_ASSERT(value);
-    if (!value) {
-        return;
-    }
-    FramelessQuickHelperData *data = getWindowDataMutable();
-    if (!data || (data->titleBarItem == value)) {
-        return;
-    }
-    data->titleBarItem = value;
-    emitSignalForAllInstances("titleBarItemChanged");
-}
-
 void FramelessQuickHelperPrivate::attach()
 {
     Q_Q(FramelessQuickHelper);
@@ -188,8 +141,8 @@ void FramelessQuickHelperPrivate::attach()
     params.getWindowPosition = [window]() -> QPoint { return window->position(); };
     params.setWindowPosition = [window](const QPoint &pos) -> void { window->setX(pos.x()); window->setY(pos.y()); };
     params.getWindowScreen = [window]() -> QScreen * { return window->screen(); };
-    params.isWindowFixedSize = [this]() -> bool { return isWindowFixedSize(); };
+    params.isWindowFixedSize = [q]() -> bool { return q->isWindowFixedSize(); };
-    params.setWindowFixedSize = [this](const bool value) -> void { setWindowFixedSize(value); };
+    params.setWindowFixedSize = [q](const bool value) -> void { q->setWindowFixedSize(value); };
     params.getWindowState = [window]() -> Qt::WindowState { return window->windowState(); };
     params.setWindowState = [window](const Qt::WindowState state) -> void { window->setWindowState(state); };
     params.getWindowHandle = [window]() -> QWindow * { return window; };
@@ -208,7 +161,7 @@ void FramelessQuickHelperPrivate::attach()
                              FRAMELESSHELPER_ENUM_CORE_TO_QUICK(ButtonState, state));
     };
     params.shouldIgnoreMouseEvents = [this](const QPoint &pos) -> bool { return shouldIgnoreMouseEvents(pos); };
-    params.showSystemMenu = [this](const QPoint &pos) -> void { showSystemMenu(pos); };
+    params.showSystemMenu = [q](const QPoint &pos) -> void { q->showSystemMenu(pos); };
     params.setProperty = [this](const char *name, const QVariant &value) -> void { setProperty(name, value); };
     params.getProperty = [this](const char *name, const QVariant &defaultValue) -> QVariant { return getProperty(name, defaultValue); };
     params.setCursor = [window](const QCursor &cursor) -> void { window->setCursor(cursor); };
@@ -227,13 +180,13 @@ void FramelessQuickHelperPrivate::attach()
     // we reach here, and all the modifications from the Qt side will be lost
     // due to QPA will reset the position and size of the window during it's
     // initialization process.
-    QTimer::singleShot(m_qpaWaitTime, this, [this](){
+    QTimer::singleShot(qpaWaitTime, this, [this, q](){
-        m_qpaReady = true;
+        qpaReady = true;
         if (FramelessConfig::instance()->isSet(Option::CenterWindowBeforeShow)) {
-            moveWindowToDesktopCenter();
+            q->moveWindowToDesktopCenter();
         }
         if (FramelessConfig::instance()->isSet(Option::EnableBlurBehindWindow)) {
-            setBlurBehindWindowEnabled(true, {});
+            q->setBlurBehindWindowEnabled(true);
         }
         emitSignalForAllInstances("ready");
     });
@@ -255,206 +208,6 @@ void FramelessQuickHelperPrivate::detach()
     FramelessManager::instance()->removeWindow(windowId);
 }
 
-void FramelessQuickHelperPrivate::setSystemButton(QQuickItem *item, const QuickGlobal::SystemButtonType buttonType)
-{
-    Q_ASSERT(item);
-    Q_ASSERT(buttonType != QuickGlobal::SystemButtonType::Unknown);
-    if (!item || (buttonType == QuickGlobal::SystemButtonType::Unknown)) {
-        return;
-    }
-    FramelessQuickHelperData *data = getWindowDataMutable();
-    if (!data) {
-        return;
-    }
-    switch (buttonType) {
-    case QuickGlobal::SystemButtonType::WindowIcon:
-        data->windowIconButton = item;
-        break;
-    case QuickGlobal::SystemButtonType::Help:
-        data->contextHelpButton = item;
-        break;
-    case QuickGlobal::SystemButtonType::Minimize:
-        data->minimizeButton = item;
-        break;
-    case QuickGlobal::SystemButtonType::Maximize:
-    case QuickGlobal::SystemButtonType::Restore:
-        data->maximizeButton = item;
-        break;
-    case QuickGlobal::SystemButtonType::Close:
-        data->closeButton = item;
-        break;
-    case QuickGlobal::SystemButtonType::Unknown:
-        Q_UNREACHABLE_RETURN(static_cast<void>(0));
-    }
-}
-
-void FramelessQuickHelperPrivate::setHitTestVisible(QQuickItem *item, const bool visible)
-{
-    Q_ASSERT(item);
-    if (!item) {
-        return;
-    }
-    FramelessQuickHelperData *data = getWindowDataMutable();
-    if (!data) {
-        return;
-    }
-    if (visible) {
-        data->hitTestVisibleItems.append(item);
-    } else {
-        data->hitTestVisibleItems.removeAll(item);
-    }
-}
-
-void FramelessQuickHelperPrivate::setHitTestVisible(const QRect &rect, const bool visible)
-{
-    Q_ASSERT(rect.isValid());
-    if (!rect.isValid()) {
-        return;
-    }
-    FramelessQuickHelperData *data = getWindowDataMutable();
-    if (!data) {
-        return;
-    }
-    if (visible) {
-        data->hitTestVisibleRects.append(rect);
-    } else {
-        data->hitTestVisibleRects.removeAll(rect);
-    }
-}
-
-void FramelessQuickHelperPrivate::setHitTestVisible(QObject *object, const bool visible)
-{
-    Q_ASSERT(object);
-    if (!object) {
-        return;
-    }
-    const auto item = qobject_cast<QQuickItem *>(object);
-    Q_ASSERT(item);
-    if (!item) {
-        return;
-    }
-    setHitTestVisible(item, visible);
-}
-
-void FramelessQuickHelperPrivate::showSystemMenu(const QPoint &pos)
-{
-    Q_Q(FramelessQuickHelper);
-    const QQuickWindow * const window = q->window();
-    if (!window) {
-        return;
-    }
-    const WId windowId = window->winId();
-    const QPoint nativePos = Utils::toNativeGlobalPosition(window, pos);
-#ifdef Q_OS_WINDOWS
-    std::ignore = Utils::showSystemMenu(windowId, nativePos, false, &getWindowData()->params);
-#elif defined(Q_OS_LINUX)
-    Utils::openSystemMenu(windowId, nativePos);
-#else
-    Q_UNUSED(windowId);
-    Q_UNUSED(nativePos);
-#endif
-}
-
-void FramelessQuickHelperPrivate::windowStartSystemMove2(const QPoint &pos)
-{
-    Q_Q(FramelessQuickHelper);
-    QQuickWindow * const window = q->window();
-    if (!window) {
-        return;
-    }
-    std::ignore = Utils::startSystemMove(window, pos);
-}
-
-void FramelessQuickHelperPrivate::windowStartSystemResize2(const Qt::Edges edges, const QPoint &pos)
-{
-    Q_Q(FramelessQuickHelper);
-    QQuickWindow * const window = q->window();
-    if (!window) {
-        return;
-    }
-    if (edges == Qt::Edges{}) {
-        return;
-    }
-    std::ignore = Utils::startSystemResize(window, edges, pos);
-}
-
-void FramelessQuickHelperPrivate::moveWindowToDesktopCenter()
-{
-    Q_Q(FramelessQuickHelper);
-    QQuickWindow * const window = q->window();
-    if (!window) {
-        return;
-    }
-    Utils::moveWindowToDesktopCenter(&getWindowData()->params, true);
-}
-
-void FramelessQuickHelperPrivate::bringWindowToFront()
-{
-    Q_Q(FramelessQuickHelper);
-    QQuickWindow * const window = q->window();
-    if (!window) {
-        return;
-    }
-#ifdef Q_OS_WINDOWS
-    std::ignore = Utils::bringWindowToFront(window->winId());
-#else
-    if (window->visibility() == QQuickWindow::Hidden) {
-        window->show();
-    }
-    if (window->visibility() == QQuickWindow::Minimized) {
-#  if (QT_VERSION >= QT_VERSION_CHECK(5, 10, 0))
-        window->setWindowStates(window->windowStates() & ~Qt::WindowMinimized);
-#  else
-        window->showNormal();
-#  endif
-    }
-    window->raise();
-    window->requestActivate();
-#endif
-}
-
-bool FramelessQuickHelperPrivate::isWindowFixedSize() const
-{
-    Q_Q(const FramelessQuickHelper);
-    const QQuickWindow * const window = q->window();
-    if (!window) {
-        return false;
-    }
-    if (window->flags() & Qt::MSWindowsFixedSizeDialogHint) {
-        return true;
-    }
-    const QSize minSize = window->minimumSize();
-    const QSize maxSize = window->maximumSize();
-    if (!minSize.isEmpty() && !maxSize.isEmpty() && (minSize == maxSize)) {
-        return true;
-    }
-    return false;
-}
-
-void FramelessQuickHelperPrivate::setWindowFixedSize(const bool value)
-{
-    Q_Q(FramelessQuickHelper);
-    QQuickWindow * const window = q->window();
-    if (!window) {
-        return;
-    }
-    if (isWindowFixedSize() == value) {
-        return;
-    }
-    if (value) {
-        const QSize size = window->size();
-        window->setMinimumSize(size);
-        window->setMaximumSize(size);
-    } else {
-        window->setMinimumSize(kDefaultWindowSize);
-        window->setMaximumSize(QSize(QWINDOWSIZE_MAX, QWINDOWSIZE_MAX));
-    }
-#ifdef Q_OS_WINDOWS
-    std::ignore = Utils::setAeroSnappingEnabled(window->winId(), !value);
-#endif
-    emitSignalForAllInstances("windowFixedSizeChanged");
-}
-
 void FramelessQuickHelperPrivate::emitSignalForAllInstances(const char *signal)
 {
     Q_ASSERT(signal);
@@ -479,50 +232,6 @@ void FramelessQuickHelperPrivate::emitSignalForAllInstances(const char *signal)
     }
 }
 
-bool FramelessQuickHelperPrivate::isBlurBehindWindowEnabled() const
-{
-    return m_blurBehindWindowEnabled;
-}
-
-void FramelessQuickHelperPrivate::setBlurBehindWindowEnabled(const bool value, const QColor &color)
-{
-    Q_Q(FramelessQuickHelper);
-    QQuickWindow * const window = q->window();
-    if (!window) {
-        return;
-    }
-    if (m_blurBehindWindowEnabled == value) {
-        return;
-    }
-    if (Utils::isBlurBehindWindowSupported()) {
-        QuickGlobal::BlurMode mode = QuickGlobal::BlurMode::Disable;
-        if (value) {
-            if (!m_savedWindowBackgroundColor.isValid()) {
-                m_savedWindowBackgroundColor = window->color();
-            }
-            window->setColor(kDefaultTransparentColor);
-            mode = QuickGlobal::BlurMode::Default;
-        } else {
-            if (m_savedWindowBackgroundColor.isValid()) {
-                window->setColor(m_savedWindowBackgroundColor);
-                m_savedWindowBackgroundColor = {};
-            }
-            mode = QuickGlobal::BlurMode::Disable;
-        }
-        if (Utils::setBlurBehindWindowEnabled(window->winId(),
-            FRAMELESSHELPER_ENUM_QUICK_TO_CORE(BlurMode, mode), color)) {
-            m_blurBehindWindowEnabled = value;
-            emitSignalForAllInstances("blurBehindWindowEnabledChanged");
-        } else {
-            WARNING << "Failed to enable/disable blur behind window.";
-        }
-    } else {
-        m_blurBehindWindowEnabled = value;
-        findOrCreateMicaMaterial()->setVisible(m_blurBehindWindowEnabled);
-        emitSignalForAllInstances("blurBehindWindowEnabledChanged");
-    }
-}
-
 void FramelessQuickHelperPrivate::setProperty(const char *name, const QVariant &value)
 {
     Q_ASSERT(name);
@@ -645,30 +354,6 @@ FramelessQuickHelper *FramelessQuickHelperPrivate::findOrCreateFramelessHelper(Q
     return instance;
 }
 
-bool FramelessQuickHelperPrivate::isReady() const
-{
-    return m_qpaReady;
-}
-
-void FramelessQuickHelperPrivate::waitForReady()
-{
-    if (m_qpaReady) {
-        return;
-    }
-#if 1
-    QEventLoop loop;
-    Q_Q(FramelessQuickHelper);
-    const QMetaObject::Connection connection = connect(
-        q, &FramelessQuickHelper::ready, &loop, &QEventLoop::quit);
-    loop.exec();
-    disconnect(connection);
-#else
-    while (!m_qpaReady) {
-        QCoreApplication::processEvents();
-    }
-#endif
-}
-
 void FramelessQuickHelperPrivate::repaintAllChildren(const quint32 delay) const
 {
     Q_Q(const FramelessQuickHelper);
@@ -708,15 +393,15 @@ void FramelessQuickHelperPrivate::repaintAllChildren(const quint32 delay) const
 
 quint32 FramelessQuickHelperPrivate::readyWaitTime() const
 {
-    return m_qpaWaitTime;
+    return qpaWaitTime;
 }
 
 void FramelessQuickHelperPrivate::setReadyWaitTime(const quint32 time)
 {
-    if (m_qpaWaitTime == time) {
+    if (qpaWaitTime == time) {
         return;
     }
-    m_qpaWaitTime = time;
+    qpaWaitTime = time;
 }
 
 QRect FramelessQuickHelperPrivate::mapItemGeometryToScene(const QQuickItem * const item) const
@@ -918,8 +603,8 @@ void FramelessQuickHelperPrivate::rebindWindow()
             q->setParent(window);
         }
     }
-    if (m_extendIntoTitleBar.value_or(true)) {
+    if (extendIntoTitleBar.value_or(true)) {
-        extendsContentIntoTitleBar(true);
+        q->extendsContentIntoTitleBar(true);
     }
 }
 
@@ -948,30 +633,6 @@ FramelessQuickHelper *FramelessQuickHelper::qmlAttachedProperties(QObject *paren
     return get(parentObject);
 }
 
-QQuickItem *FramelessQuickHelper::titleBarItem() const
-{
-    Q_D(const FramelessQuickHelper);
-    return d->getTitleBarItem();
-}
-
-bool FramelessQuickHelper::isWindowFixedSize() const
-{
-    Q_D(const FramelessQuickHelper);
-    return d->isWindowFixedSize();
-}
-
-bool FramelessQuickHelper::isBlurBehindWindowEnabled() const
-{
-    Q_D(const FramelessQuickHelper);
-    return d->isBlurBehindWindowEnabled();
-}
-
-bool FramelessQuickHelper::isContentExtendedIntoTitleBar() const
-{
-    Q_D(const FramelessQuickHelper);
-    return d->isContentExtendedIntoTitleBar();
-}
-
 QuickMicaMaterial *FramelessQuickHelper::micaMaterial() const
 {
     Q_D(const FramelessQuickHelper);
@@ -984,22 +645,88 @@ QuickWindowBorder *FramelessQuickHelper::windowBorder() const
     return d->findOrCreateWindowBorder();
 }
 
-bool FramelessQuickHelper::isReady() const
+void FramelessQuickHelper::setHitTestVisible(QQuickItem *item, const bool visible)
 {
-    Q_D(const FramelessQuickHelper);
+    setHitTestVisible_item(item, visible);
-    return d->isReady();
 }
 
-void FramelessQuickHelper::waitForReady()
+void FramelessQuickHelper::setHitTestVisible_item(QQuickItem *item, const bool visible)
 {
+    Q_ASSERT(item);
+    if (!item) {
+        return;
+    }
     Q_D(FramelessQuickHelper);
-    d->waitForReady();
+    FramelessQuickHelperData *data = d->getWindowDataMutable();
+    if (!data) {
+        return;
+    }
+    if (visible) {
+        data->hitTestVisibleItems.append(item);
+    } else {
+        data->hitTestVisibleItems.removeAll(item);
+    }
+}
+
+void FramelessQuickHelper::setHitTestVisible_rect(const QRect &rect, const bool visible)
+{
+    Q_ASSERT(rect.isValid());
+    if (!rect.isValid()) {
+        return;
+    }
+    Q_D(FramelessQuickHelper);
+    FramelessQuickHelperData *data = d->getWindowDataMutable();
+    if (!data) {
+        return;
+    }
+    if (visible) {
+        data->hitTestVisibleRects.append(rect);
+    } else {
+        data->hitTestVisibleRects.removeAll(rect);
+    }
+}
+
+void FramelessQuickHelper::setHitTestVisible_object(QObject *object, const bool visible)
+{
+    Q_ASSERT(object);
+    if (!object) {
+        return;
+    }
+    const auto item = qobject_cast<QQuickItem *>(object);
+    Q_ASSERT(item);
+    if (!item) {
+        return;
+    }
+    setHitTestVisible_item(item, visible);
+}
+
+bool FramelessQuickHelper::isContentExtendedIntoTitleBar() const
+{
+    Q_D(const FramelessQuickHelper);
+    const FramelessQuickHelperData *data = d->getWindowData();
+    return (data ? data->ready : false);
 }
 
 void FramelessQuickHelper::extendsContentIntoTitleBar(const bool value)
 {
+    if (isContentExtendedIntoTitleBar() == value) {
+        return;
+    }
     Q_D(FramelessQuickHelper);
-    d->extendsContentIntoTitleBar(value);
+    if (value) {
+        d->attach();
+    } else {
+        d->detach();
+    }
+    d->extendIntoTitleBar = value;
+    d->emitSignalForAllInstances("extendsContentIntoTitleBarChanged");
+}
+
+QQuickItem *FramelessQuickHelper::titleBarItem() const
+{
+    Q_D(const FramelessQuickHelper);
+    const FramelessQuickHelperData *data = d->getWindowData();
+    return (data ? data->titleBarItem : nullptr);
 }
 
 void FramelessQuickHelper::setTitleBarItem(QQuickItem *value)
@@ -1009,7 +736,12 @@ void FramelessQuickHelper::setTitleBarItem(QQuickItem *value)
         return;
     }
     Q_D(FramelessQuickHelper);
-    d->setTitleBarItem(value);
+    FramelessQuickHelperData *data = d->getWindowDataMutable();
+    if (!data || (data->titleBarItem == value)) {
+        return;
+    }
+    data->titleBarItem = value;
+    d->emitSignalForAllInstances("titleBarItemChanged");
 }
 
 void FramelessQuickHelper::setSystemButton(QQuickItem *item, const QuickGlobal::SystemButtonType buttonType)
@@ -1020,87 +752,212 @@ void FramelessQuickHelper::setSystemButton(QQuickItem *item, const QuickGlobal::
         return;
     }
     Q_D(FramelessQuickHelper);
-    d->setSystemButton(item, buttonType);
+    FramelessQuickHelperData *data = d->getWindowDataMutable();
-}
+    if (!data) {
-
-void FramelessQuickHelper::setHitTestVisible(QQuickItem *item, const bool visible)
-{
-    setHitTestVisible_item(item, visible);
-}
-
-void FramelessQuickHelper::setHitTestVisible_rect(const QRect &rect, const bool visible)
-{
-    Q_ASSERT(rect.isValid());
-    if (!rect.isValid()) {
         return;
     }
-    Q_D(FramelessQuickHelper);
+    switch (buttonType) {
-    d->setHitTestVisible(rect, visible);
+    case QuickGlobal::SystemButtonType::WindowIcon:
-}
+        data->windowIconButton = item;
-
+        break;
-void FramelessQuickHelper::setHitTestVisible_object(QObject *object, const bool visible)
+    case QuickGlobal::SystemButtonType::Help:
-{
+        data->contextHelpButton = item;
-    Q_ASSERT(object);
+        break;
-    if (!object) {
+    case QuickGlobal::SystemButtonType::Minimize:
-        return;
+        data->minimizeButton = item;
+        break;
+    case QuickGlobal::SystemButtonType::Maximize:
+    case QuickGlobal::SystemButtonType::Restore:
+        data->maximizeButton = item;
+        break;
+    case QuickGlobal::SystemButtonType::Close:
+        data->closeButton = item;
+        break;
+    case QuickGlobal::SystemButtonType::Unknown:
+        Q_UNREACHABLE();
     }
-    Q_D(FramelessQuickHelper);
-    d->setHitTestVisible(object, visible);
-}
-
-void FramelessQuickHelper::setHitTestVisible_item(QQuickItem *item, const bool visible)
-{
-    Q_ASSERT(item);
-    if (!item) {
-        return;
-    }
-    Q_D(FramelessQuickHelper);
-    d->setHitTestVisible(item, visible);
 }
 
 void FramelessQuickHelper::showSystemMenu(const QPoint &pos)
 {
+    const QQuickWindow * const w = window();
+    if (!w) {
+        return;
+    }
+    const WId windowId = w->winId();
+    const QPoint nativePos = Utils::toNativeGlobalPosition(w, pos);
+#ifdef Q_OS_WINDOWS
     Q_D(FramelessQuickHelper);
-    d->showSystemMenu(pos);
+    std::ignore = Utils::showSystemMenu(windowId, nativePos, false, &d->getWindowData()->params);
+#elif defined(Q_OS_LINUX)
+    Utils::openSystemMenu(windowId, nativePos);
+#else
+    Q_UNUSED(windowId);
+    Q_UNUSED(nativePos);
+#endif
 }
 
 void FramelessQuickHelper::windowStartSystemMove2(const QPoint &pos)
 {
-    Q_D(FramelessQuickHelper);
+    QQuickWindow * const w = window();
-    d->windowStartSystemMove2(pos);
+    if (!w) {
+        return;
+    }
+    std::ignore = Utils::startSystemMove(w, pos);
 }
 
 void FramelessQuickHelper::windowStartSystemResize2(const Qt::Edges edges, const QPoint &pos)
 {
+    QQuickWindow * const w = window();
+    if (!w) {
+        return;
+    }
     if (edges == Qt::Edges{}) {
         return;
     }
-    Q_D(FramelessQuickHelper);
+    std::ignore = Utils::startSystemResize(w, edges, pos);
-    d->windowStartSystemResize2(edges, pos);
 }
 
 void FramelessQuickHelper::moveWindowToDesktopCenter()
 {
+    if (!window()) {
+        return;
+    }
     Q_D(FramelessQuickHelper);
-    d->moveWindowToDesktopCenter();
+    Utils::moveWindowToDesktopCenter(&d->getWindowData()->params, true);
 }
 
 void FramelessQuickHelper::bringWindowToFront()
 {
-    Q_D(FramelessQuickHelper);
+    QQuickWindow * const w = window();
-    d->bringWindowToFront();
+    if (!w) {
+        return;
+    }
+#ifdef Q_OS_WINDOWS
+    std::ignore = Utils::bringWindowToFront(w->winId());
+#else
+    if (w->visibility() == QQuickWindow::Hidden) {
+        w->show();
+    }
+    if (w->visibility() == QQuickWindow::Minimized) {
+#  if (QT_VERSION >= QT_VERSION_CHECK(5, 10, 0))
+        w->setWindowStates(w->windowStates() & ~Qt::WindowMinimized);
+#  else
+        w->showNormal();
+#  endif
+    }
+    w->raise();
+    w->requestActivate();
+#endif
+}
+
+bool FramelessQuickHelper::isWindowFixedSize() const
+{
+    const QQuickWindow * const w = window();
+    if (!w) {
+        return false;
+    }
+    if (w->flags() & Qt::MSWindowsFixedSizeDialogHint) {
+        return true;
+    }
+    const QSize minSize = w->minimumSize();
+    const QSize maxSize = w->maximumSize();
+    if (!minSize.isEmpty() && !maxSize.isEmpty() && (minSize == maxSize)) {
+        return true;
+    }
+    return false;
 }
 
 void FramelessQuickHelper::setWindowFixedSize(const bool value)
 {
+    QQuickWindow * const w = window();
+    if (!w) {
+        return;
+    }
+    if (isWindowFixedSize() == value) {
+        return;
+    }
+    if (value) {
+        const QSize size = w->size();
+        w->setMinimumSize(size);
+        w->setMaximumSize(size);
+    } else {
+        w->setMinimumSize(kDefaultWindowSize);
+        w->setMaximumSize(QSize(QWINDOWSIZE_MAX, QWINDOWSIZE_MAX));
+    }
+#ifdef Q_OS_WINDOWS
+    std::ignore = Utils::setAeroSnappingEnabled(w->winId(), !value);
+#endif
     Q_D(FramelessQuickHelper);
-    d->setWindowFixedSize(value);
+    d->emitSignalForAllInstances("windowFixedSizeChanged");
+}
+
+bool FramelessQuickHelper::isBlurBehindWindowEnabled() const
+{
+    Q_D(const FramelessQuickHelper);
+    return d->blurBehindWindowEnabled;
 }
 
 void FramelessQuickHelper::setBlurBehindWindowEnabled(const bool value)
 {
+    QQuickWindow * const w = window();
+    if (!w) {
+        return;
+    }
     Q_D(FramelessQuickHelper);
-    d->setBlurBehindWindowEnabled(value, {});
+    if (d->blurBehindWindowEnabled == value) {
+        return;
+    }
+    if (Utils::isBlurBehindWindowSupported()) {
+        QuickGlobal::BlurMode mode = QuickGlobal::BlurMode::Disable;
+        if (value) {
+            if (!d->savedWindowBackgroundColor.isValid()) {
+                d->savedWindowBackgroundColor = w->color();
+            }
+            w->setColor(kDefaultTransparentColor);
+            mode = QuickGlobal::BlurMode::Default;
+        } else {
+            if (d->savedWindowBackgroundColor.isValid()) {
+                w->setColor(d->savedWindowBackgroundColor);
+                d->savedWindowBackgroundColor = {};
+            }
+            mode = QuickGlobal::BlurMode::Disable;
+        }
+        if (Utils::setBlurBehindWindowEnabled(w->winId(), FRAMELESSHELPER_ENUM_QUICK_TO_CORE(BlurMode, mode), {})) {
+            d->blurBehindWindowEnabled = value;
+            d->emitSignalForAllInstances("blurBehindWindowEnabledChanged");
+        } else {
+            WARNING << "Failed to enable/disable blur behind window.";
+        }
+    } else {
+        d->blurBehindWindowEnabled = value;
+        micaMaterial()->setVisible(d->blurBehindWindowEnabled);
+        d->emitSignalForAllInstances("blurBehindWindowEnabledChanged");
+    }
+}
+
+bool FramelessQuickHelper::isReady() const
+{
+    Q_D(const FramelessQuickHelper);
+    return d->qpaReady;
+}
+
+void FramelessQuickHelper::waitForReady()
+{
+    Q_D(FramelessQuickHelper);
+    if (d->qpaReady) {
+        return;
+    }
+#if 1
+    QEventLoop loop{};
+    const QMetaObject::Connection connection = connect(this, &FramelessQuickHelper::ready, &loop, &QEventLoop::quit);
+    loop.exec();
+    disconnect(connection);
+#else
+    while (!d->qpaReady) {
+        QCoreApplication::processEvents();
+    }
+#endif
 }
 
 void FramelessQuickHelper::itemChange(const ItemChange change, const ItemChangeData &value)

src/quick/framelessquickwindow.cpp

@@ -59,7 +59,6 @@ FramelessQuickWindowPrivate::FramelessQuickWindowPrivate(FramelessQuickWindow *q
         return;
     }
     q_ptr = q;
-    initialize();
 }
 
 FramelessQuickWindowPrivate::~FramelessQuickWindowPrivate() = default;
@@ -82,156 +81,90 @@ const FramelessQuickWindowPrivate *FramelessQuickWindowPrivate::get(const Framel
     return pub->d_func();
 }
 
-bool FramelessQuickWindowPrivate::isHidden() const
-{
-    Q_Q(const FramelessQuickWindow);
-    return (q->visibility() == FramelessQuickWindow::Hidden);
-}
-
-bool FramelessQuickWindowPrivate::isNormal() const
-{
-    Q_Q(const FramelessQuickWindow);
-    return (q->visibility() == FramelessQuickWindow::Windowed);
-}
-
-bool FramelessQuickWindowPrivate::isMinimized() const
-{
-    Q_Q(const FramelessQuickWindow);
-    return (q->visibility() == FramelessQuickWindow::Minimized);
-}
-
-bool FramelessQuickWindowPrivate::isMaximized() const
-{
-    Q_Q(const FramelessQuickWindow);
-    return (q->visibility() == FramelessQuickWindow::Maximized);
-}
-
-bool FramelessQuickWindowPrivate::isZoomed() const
-{
-    Q_Q(const FramelessQuickWindow);
-    return (isMaximized() || (q->visibility() == FramelessQuickWindow::FullScreen));
-}
-
-bool FramelessQuickWindowPrivate::isFullScreen() const
-{
-    Q_Q(const FramelessQuickWindow);
-    return (q->visibility() == FramelessQuickWindow::FullScreen);
-}
-
-void FramelessQuickWindowPrivate::showMinimized2()
-{
-    Q_Q(FramelessQuickWindow);
-#ifdef Q_OS_WINDOWS
-    // Work-around a QtQuick bug: https://bugreports.qt.io/browse/QTBUG-69711
-    // Don't use "SW_SHOWMINIMIZED" because it will activate the current window
-    // instead of the next window in the Z order, which is not the default behavior
-    // of native Win32 applications.
-    ShowWindow(reinterpret_cast<HWND>(q->winId()), SW_MINIMIZE);
-#else
-    q->showMinimized();
-#endif
-}
-
-void FramelessQuickWindowPrivate::toggleMaximized()
-{
-    Q_Q(FramelessQuickWindow);
-    if (isMaximized()) {
-        q->showNormal();
-    } else {
-        q->showMaximized();
-    }
-}
-
-void FramelessQuickWindowPrivate::toggleFullScreen()
-{
-    Q_Q(FramelessQuickWindow);
-    if (isFullScreen()) {
-        q->setVisibility(m_savedVisibility);
-    } else {
-        m_savedVisibility = q->visibility();
-        q->showFullScreen();
-    }
-}
-
-void FramelessQuickWindowPrivate::initialize()
-{
-    Q_Q(FramelessQuickWindow);
-    QQuickItem * const rootItem = q->contentItem();
-    FramelessQuickHelper::get(rootItem)->extendsContentIntoTitleBar();
-    m_windowBorder = new QuickWindowBorder;
-    m_windowBorder->setParent(rootItem);
-    m_windowBorder->setParentItem(rootItem);
-    m_windowBorder->setZ(999); // Make sure it always stays on the top.
-    QQuickItemPrivate::get(m_windowBorder)->anchors()->setFill(rootItem);
-    connect(q, &FramelessQuickWindow::visibilityChanged, q, [q](){
-        Q_EMIT q->hiddenChanged();
-        Q_EMIT q->normalChanged();
-        Q_EMIT q->minimizedChanged();
-        Q_EMIT q->maximizedChanged();
-        Q_EMIT q->zoomedChanged();
-        Q_EMIT q->fullScreenChanged();
-    });
-}
-
 FramelessQuickWindow::FramelessQuickWindow(QWindow *parent)
     : QQuickWindowQmlImpl(parent), d_ptr(new FramelessQuickWindowPrivate(this))
 {
+    QQuickItem * const rootItem = contentItem();
+    FramelessQuickHelper::get(rootItem)->extendsContentIntoTitleBar();
+    Q_D(FramelessQuickWindow);
+    d->windowBorder = new QuickWindowBorder;
+    d->windowBorder->setParent(rootItem);
+    d->windowBorder->setParentItem(rootItem);
+    d->windowBorder->setZ(999); // Make sure it always stays on the top.
+    QQuickItemPrivate::get(d->windowBorder)->anchors()->setFill(rootItem);
+    connect(this, &FramelessQuickWindow::visibilityChanged, this, [this](){
+        Q_EMIT hiddenChanged();
+        Q_EMIT normalChanged();
+        Q_EMIT minimizedChanged();
+        Q_EMIT maximizedChanged();
+        Q_EMIT zoomedChanged();
+        Q_EMIT fullScreenChanged();
+    });
 }
 
 FramelessQuickWindow::~FramelessQuickWindow() = default;
 
 bool FramelessQuickWindow::isHidden() const
 {
-    Q_D(const FramelessQuickWindow);
+    return (visibility() == FramelessQuickWindow::Hidden);
-    return d->isHidden();
 }
 
 bool FramelessQuickWindow::isNormal() const
 {
-    Q_D(const FramelessQuickWindow);
+    return (visibility() == FramelessQuickWindow::Windowed);
-    return d->isNormal();
 }
 
 bool FramelessQuickWindow::isMinimized() const
 {
-    Q_D(const FramelessQuickWindow);
+    return (visibility() == FramelessQuickWindow::Minimized);
-    return d->isMinimized();
 }
 
 bool FramelessQuickWindow::isMaximized() const
 {
-    Q_D(const FramelessQuickWindow);
+    return (visibility() == FramelessQuickWindow::Maximized);
-    return d->isMaximized();
 }
 
 bool FramelessQuickWindow::isZoomed() const
 {
-    Q_D(const FramelessQuickWindow);
+    return (isMaximized() || (visibility() == FramelessQuickWindow::FullScreen));
-    return d->isZoomed();
 }
 
 bool FramelessQuickWindow::isFullScreen() const
 {
-    Q_D(const FramelessQuickWindow);
+    return (visibility() == FramelessQuickWindow::FullScreen);
-    return d->isFullScreen();
 }
 
 void FramelessQuickWindow::showMinimized2()
 {
-    Q_D(FramelessQuickWindow);
+#ifdef Q_OS_WINDOWS
-    d->showMinimized2();
+    // Work-around a QtQuick bug: https://bugreports.qt.io/browse/QTBUG-69711
+    // Don't use "SW_SHOWMINIMIZED" because it will activate the current window
+    // instead of the next window in the Z order, which is not the default behavior
+    // of native Win32 applications.
+    ::ShowWindow(reinterpret_cast<HWND>(winId()), SW_MINIMIZE);
+#else
+    showMinimized();
+#endif
 }
 
 void FramelessQuickWindow::toggleMaximized()
 {
-    Q_D(FramelessQuickWindow);
+    if (isMaximized()) {
-    d->toggleMaximized();
+        showNormal();
+    } else {
+        showMaximized();
+    }
 }
 
 void FramelessQuickWindow::toggleFullScreen()
 {
     Q_D(FramelessQuickWindow);
-    d->toggleFullScreen();
+    if (isFullScreen()) {
+        setVisibility(d->savedVisibility);
+    } else {
+        d->savedVisibility = visibility();
+        showFullScreen();
+    }
 }
 
 void FramelessQuickWindow::classBegin()

src/quick/quickimageitem.cpp

@@ -60,7 +60,6 @@ QuickImageItemPrivate::QuickImageItemPrivate(QuickImageItem *q) : QObject(q)
         return;
     }
     q_ptr = q;
-    initialize();
 }
 
 QuickImageItemPrivate::~QuickImageItemPrivate() = default;
@@ -83,71 +82,6 @@ const QuickImageItemPrivate *QuickImageItemPrivate::get(const QuickImageItem *q)
     return q->d_func();
 }
 
-void QuickImageItemPrivate::paint(QPainter *painter) const
-{
-    Q_ASSERT(painter);
-    if (!painter) {
-        return;
-    }
-    if (!m_source.isValid() || m_source.isNull()) {
-        return;
-    }
-    painter->save();
-    painter->setRenderHints(QPainter::Antialiasing |
-        QPainter::TextAntialiasing | QPainter::SmoothPixmapTransform);
-    switch (m_source.userType()) {
-    case QMetaType::QUrl:
-        fromUrl(m_source.toUrl(), painter);
-        break;
-    case QMetaType::QString:
-        fromString(m_source.toString(), painter);
-        break;
-    case QMetaType::QImage:
-        fromImage(qvariant_cast<QImage>(m_source), painter);
-        break;
-    case QMetaType::QPixmap:
-        fromPixmap(qvariant_cast<QPixmap>(m_source), painter);
-        break;
-    case QMetaType::QIcon:
-        fromIcon(qvariant_cast<QIcon>(m_source), painter);
-        break;
-    default:
-        WARNING << "Unsupported type:" << m_source.typeName();
-        break;
-    }
-    painter->restore();
-}
-
-QVariant QuickImageItemPrivate::source() const
-{
-    return m_source;
-}
-
-void QuickImageItemPrivate::setSource(const QVariant &value)
-{
-    Q_ASSERT(value.isValid());
-    Q_ASSERT(!value.isNull());
-    if (!value.isValid() || value.isNull()) {
-        return;
-    }
-    if (m_source == value) {
-        return;
-    }
-    m_source = value;
-    Q_Q(QuickImageItem);
-    q->update();
-    Q_EMIT q->sourceChanged();
-}
-
-void QuickImageItemPrivate::initialize()
-{
-    Q_Q(QuickImageItem);
-    q->setAntialiasing(true);
-    q->setSmooth(true);
-    q->setMipmap(true);
-    q->setClip(true);
-}
-
 void QuickImageItemPrivate::fromUrl(const QUrl &value, QPainter *painter) const
 {
     Q_ASSERT(value.isValid());
@@ -226,26 +160,70 @@ QRectF QuickImageItemPrivate::paintArea() const
 QuickImageItem::QuickImageItem(QQuickItem *parent)
     : QQuickPaintedItem(parent), d_ptr(new QuickImageItemPrivate(this))
 {
+    setAntialiasing(true);
+    setSmooth(true);
+    setMipmap(true);
+    setClip(true);
 }
 
 QuickImageItem::~QuickImageItem() = default;
 
 void QuickImageItem::paint(QPainter *painter)
 {
+    Q_ASSERT(painter);
+    if (!painter) {
+        return;
+    }
     Q_D(QuickImageItem);
-    d->paint(painter);
+    if (!d->source.isValid() || d->source.isNull()) {
+        return;
+    }
+    painter->save();
+    painter->setRenderHints(QPainter::Antialiasing |
+        QPainter::TextAntialiasing | QPainter::SmoothPixmapTransform);
+    switch (d->source.userType()) {
+    case QMetaType::QUrl:
+        d->fromUrl(d->source.toUrl(), painter);
+        break;
+    case QMetaType::QString:
+        d->fromString(d->source.toString(), painter);
+        break;
+    case QMetaType::QImage:
+        d->fromImage(qvariant_cast<QImage>(d->source), painter);
+        break;
+    case QMetaType::QPixmap:
+        d->fromPixmap(qvariant_cast<QPixmap>(d->source), painter);
+        break;
+    case QMetaType::QIcon:
+        d->fromIcon(qvariant_cast<QIcon>(d->source), painter);
+        break;
+    default:
+        WARNING << "Unsupported type:" << d->source.typeName();
+        break;
+    }
+    painter->restore();
 }
 
 QVariant QuickImageItem::source() const
 {
     Q_D(const QuickImageItem);
-    return d->source();
+    return d->source;
 }
 
 void QuickImageItem::setSource(const QVariant &value)
 {
+    Q_ASSERT(value.isValid());
+    Q_ASSERT(!value.isNull());
+    if (!value.isValid() || value.isNull()) {
+        return;
+    }
     Q_D(QuickImageItem);
-    d->setSource(value);
+    if (d->source == value) {
+        return;
+    }
+    d->source = value;
+    update();
+    Q_EMIT sourceChanged();
 }
 
 void QuickImageItem::classBegin()

src/quick/quickmicamaterial.cpp

@@ -102,13 +102,13 @@ void QuickMicaMaterialPrivate::initialize()
     // we don't need it anyway and it can improve the general performance as well.
     q->setFillColor(QColor{});
 
-    m_micaMaterial = new MicaMaterial(this);
+    micaMaterial = new MicaMaterial(this);
-    connect(m_micaMaterial, &MicaMaterial::tintColorChanged, q, &QuickMicaMaterial::tintColorChanged);
+    connect(micaMaterial, &MicaMaterial::tintColorChanged, q, &QuickMicaMaterial::tintColorChanged);
-    connect(m_micaMaterial, &MicaMaterial::tintOpacityChanged, q, &QuickMicaMaterial::tintOpacityChanged);
+    connect(micaMaterial, &MicaMaterial::tintOpacityChanged, q, &QuickMicaMaterial::tintOpacityChanged);
-    connect(m_micaMaterial, &MicaMaterial::fallbackColorChanged, q, &QuickMicaMaterial::fallbackColorChanged);
+    connect(micaMaterial, &MicaMaterial::fallbackColorChanged, q, &QuickMicaMaterial::fallbackColorChanged);
-    connect(m_micaMaterial, &MicaMaterial::noiseOpacityChanged, q, &QuickMicaMaterial::noiseOpacityChanged);
+    connect(micaMaterial, &MicaMaterial::noiseOpacityChanged, q, &QuickMicaMaterial::noiseOpacityChanged);
-    connect(m_micaMaterial, &MicaMaterial::fallbackEnabledChanged, q, &QuickMicaMaterial::fallbackEnabledChanged);
+    connect(micaMaterial, &MicaMaterial::fallbackEnabledChanged, q, &QuickMicaMaterial::fallbackEnabledChanged);
-    connect(m_micaMaterial, &MicaMaterial::shouldRedraw, q, [q](){ q->update(); });
+    connect(micaMaterial, &MicaMaterial::shouldRedraw, q, [q](){ q->update(); });
 }
 
 void QuickMicaMaterialPrivate::rebindWindow()
@@ -125,39 +125,21 @@ void QuickMicaMaterialPrivate::rebindWindow()
     QQuickItemPrivate::get(q)->anchors()->setFill(rootItem);
 #endif // FRAMELESSHELPER_QUICK_NO_PRIVATE
     q->setZ(-999); // Make sure we always stays on the bottom most place.
-    if (m_rootWindowXChangedConnection) {
+    if (rootWindowXChangedConnection) {
-        disconnect(m_rootWindowXChangedConnection);
+        disconnect(rootWindowXChangedConnection);
-        m_rootWindowXChangedConnection = {};
+        rootWindowXChangedConnection = {};
     }
-    if (m_rootWindowYChangedConnection) {
+    if (rootWindowYChangedConnection) {
-        disconnect(m_rootWindowYChangedConnection);
+        disconnect(rootWindowYChangedConnection);
-        m_rootWindowYChangedConnection = {};
+        rootWindowYChangedConnection = {};
     }
-    if (m_rootWindowActiveChangedConnection) {
+    if (rootWindowActiveChangedConnection) {
-        disconnect(m_rootWindowActiveChangedConnection);
+        disconnect(rootWindowActiveChangedConnection);
-        m_rootWindowActiveChangedConnection = {};
+        rootWindowActiveChangedConnection = {};
     }
-    m_rootWindowXChangedConnection = connect(window, &QQuickWindow::xChanged, q, [q](){ q->update(); });
+    rootWindowXChangedConnection = connect(window, &QQuickWindow::xChanged, q, [q](){ q->update(); });
-    m_rootWindowYChangedConnection = connect(window, &QQuickWindow::yChanged, q, [q](){ q->update(); });
+    rootWindowYChangedConnection = connect(window, &QQuickWindow::yChanged, q, [q](){ q->update(); });
-    m_rootWindowActiveChangedConnection = connect(window, &QQuickWindow::activeChanged, q, [q](){ q->update(); });
+    rootWindowActiveChangedConnection = connect(window, &QQuickWindow::activeChanged, q, [q](){ q->update(); });
-}
-
-void QuickMicaMaterialPrivate::repaint(QPainter *painter)
-{
-    Q_ASSERT(painter);
-    Q_ASSERT(m_micaMaterial);
-    if (!painter || !m_micaMaterial) {
-        return;
-    }
-    Q_Q(QuickMicaMaterial);
-    const bool isActive = q->window() ? q->window()->isActive() : false;
-    const QPoint originPoint = q->mapToGlobal(QPointF{ 0, 0 }).toPoint();
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 10, 0))
-    const QSize size = q->size().toSize();
-#else // (QT_VERSION < QT_VERSION_CHECK(5, 10, 0))
-    const QSize size = QSizeF{ q->width(), q->height() }.toSize();
-#endif // (QT_VERSION >= QT_VERSION_CHECK(5, 10, 0))
-    m_micaMaterial->paint(painter, QRect{ originPoint, size }, isActive);
 }
 
 QuickMicaMaterial::QuickMicaMaterial(QQuickItem *parent)
@@ -174,67 +156,74 @@ void QuickMicaMaterial::paint(QPainter *painter)
         return;
     }
     Q_D(QuickMicaMaterial);
-    d->repaint(painter);
+    const bool isActive = window() ? window()->isActive() : false;
+    const QPoint originPoint = mapToGlobal(QPointF{ 0, 0 }).toPoint();
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 10, 0))
+    const QSize s = size().toSize();
+#else // (QT_VERSION < QT_VERSION_CHECK(5, 10, 0))
+    const QSize s = QSizeF{ width(), height() }.toSize();
+#endif // (QT_VERSION >= QT_VERSION_CHECK(5, 10, 0))
+    d->micaMaterial->paint(painter, QRect{ originPoint, s }, isActive);
 }
 
 QColor QuickMicaMaterial::tintColor() const
 {
     Q_D(const QuickMicaMaterial);
-    return d->m_micaMaterial->tintColor();
+    return d->micaMaterial->tintColor();
 }
 
 void QuickMicaMaterial::setTintColor(const QColor &value)
 {
     Q_D(QuickMicaMaterial);
-    d->m_micaMaterial->setTintColor(value);
+    d->micaMaterial->setTintColor(value);
 }
 
 qreal QuickMicaMaterial::tintOpacity() const
 {
     Q_D(const QuickMicaMaterial);
-    return d->m_micaMaterial->tintOpacity();
+    return d->micaMaterial->tintOpacity();
 }
 
 void QuickMicaMaterial::setTintOpacity(const qreal value)
 {
     Q_D(QuickMicaMaterial);
-    d->m_micaMaterial->setTintOpacity(value);
+    d->micaMaterial->setTintOpacity(value);
 }
 
 QColor QuickMicaMaterial::fallbackColor() const
 {
     Q_D(const QuickMicaMaterial);
-    return d->m_micaMaterial->fallbackColor();
+    return d->micaMaterial->fallbackColor();
 }
 
 void QuickMicaMaterial::setFallbackColor(const QColor &value)
 {
     Q_D(QuickMicaMaterial);
-    d->m_micaMaterial->setFallbackColor(value);
+    d->micaMaterial->setFallbackColor(value);
 }
 
 qreal QuickMicaMaterial::noiseOpacity() const
 {
     Q_D(const QuickMicaMaterial);
-    return d->m_micaMaterial->noiseOpacity();
+    return d->micaMaterial->noiseOpacity();
 }
 
 void QuickMicaMaterial::setNoiseOpacity(const qreal value)
 {
     Q_D(QuickMicaMaterial);
-    d->m_micaMaterial->setNoiseOpacity(value);
+    d->micaMaterial->setNoiseOpacity(value);
 }
 
 bool QuickMicaMaterial::isFallbackEnabled() const
 {
     Q_D(const QuickMicaMaterial);
-    return d->m_micaMaterial->isFallbackEnabled();
+    return d->micaMaterial->isFallbackEnabled();
 }
 
 void QuickMicaMaterial::setFallbackEnabled(const bool value)
 {
     Q_D(QuickMicaMaterial);
-    d->m_micaMaterial->setFallbackEnabled(value);
+    d->micaMaterial->setFallbackEnabled(value);
 }
 
 void QuickMicaMaterial::itemChange(const ItemChange change, const ItemChangeData &value)
@@ -242,14 +231,14 @@ void QuickMicaMaterial::itemChange(const ItemChange change, const ItemChangeData
     QQuickPaintedItem::itemChange(change, value);
     Q_D(QuickMicaMaterial);
     switch (change) {
-    case ItemDevicePixelRatioHasChanged: {
+    case ItemDevicePixelRatioHasChanged:
         update(); // Force re-paint immediately.
-    } break;
+        break;
-    case ItemSceneChange: {
+    case ItemSceneChange:
         if (value.window) {
             d->rebindWindow();
         }
-    } break;
+        break;
     default:
         break;
     }

src/quick/quickwindowborder.cpp

@@ -115,21 +115,6 @@ const QuickWindowBorderPrivate *QuickWindowBorderPrivate::get(const QuickWindowB
     return q->d_func();
 }
 
-void QuickWindowBorderPrivate::paint(QPainter *painter) const
-{
-    Q_ASSERT(painter);
-    if (!painter || !m_borderPainter) {
-        return;
-    }
-    Q_Q(const QuickWindowBorder);
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 10, 0))
-    const QSize size = q->size().toSize();
-#else
-    const QSize size = QSizeF(q->width(), q->height()).toSize();
-#endif
-    m_borderPainter->paint(painter, size, (q->window() && q->window()->isActive()));
-}
-
 void QuickWindowBorderPrivate::update()
 {
     Q_Q(QuickWindowBorder);
@@ -150,18 +135,18 @@ void QuickWindowBorderPrivate::initialize()
     // some very thin lines that are too fragile.
     q->setAntialiasing(false);
 
-    m_borderPainter = new WindowBorderPainter(this);
+    borderPainter = new WindowBorderPainter(this);
-    connect(m_borderPainter, &WindowBorderPainter::thicknessChanged,
+    connect(borderPainter, &WindowBorderPainter::thicknessChanged,
         q, &QuickWindowBorder::thicknessChanged);
-    connect(m_borderPainter, &WindowBorderPainter::edgesChanged,
+    connect(borderPainter, &WindowBorderPainter::edgesChanged,
         q, &QuickWindowBorder::edgesChanged);
-    connect(m_borderPainter, &WindowBorderPainter::activeColorChanged,
+    connect(borderPainter, &WindowBorderPainter::activeColorChanged,
         q, &QuickWindowBorder::activeColorChanged);
-    connect(m_borderPainter, &WindowBorderPainter::inactiveColorChanged,
+    connect(borderPainter, &WindowBorderPainter::inactiveColorChanged,
         q, &QuickWindowBorder::inactiveColorChanged);
-    connect(m_borderPainter, &WindowBorderPainter::nativeBorderChanged,
+    connect(borderPainter, &WindowBorderPainter::nativeBorderChanged,
         q, &QuickWindowBorder::nativeBorderChanged);
-    connect(m_borderPainter, &WindowBorderPainter::shouldRepaint, q, [q](){ q->update(); });
+    connect(borderPainter, &WindowBorderPainter::shouldRepaint, q, [q](){ q->update(); });
 }
 
 void QuickWindowBorderPrivate::rebindWindow()
@@ -178,17 +163,17 @@ void QuickWindowBorderPrivate::rebindWindow()
     QQuickItemPrivate::get(q)->anchors()->setFill(rootItem);
 #endif // FRAMELESSHELPER_QUICK_NO_PRIVATE
     q->setZ(999); // Make sure we always stays on the top most place.
-    if (m_activeChangeConnection) {
+    if (activeChangeConnection) {
-        disconnect(m_activeChangeConnection);
+        disconnect(activeChangeConnection);
-        m_activeChangeConnection = {};
+        activeChangeConnection = {};
     }
-    if (m_visibilityChangeConnection) {
+    if (visibilityChangeConnection) {
-        disconnect(m_visibilityChangeConnection);
+        disconnect(visibilityChangeConnection);
-        m_visibilityChangeConnection = {};
+        visibilityChangeConnection = {};
     }
-    m_activeChangeConnection = connect(window, &QQuickWindow::activeChanged,
+    activeChangeConnection = connect(window, &QQuickWindow::activeChanged,
         this, &QuickWindowBorderPrivate::update);
-    m_visibilityChangeConnection = connect(window, &QQuickWindow::visibilityChanged,
+    visibilityChangeConnection = connect(window, &QQuickWindow::visibilityChanged,
         this, &QuickWindowBorderPrivate::update);
 }
 
@@ -201,106 +186,115 @@ QuickWindowBorder::~QuickWindowBorder() = default;
 
 void QuickWindowBorder::paint(QPainter *painter)
 {
+    Q_ASSERT(painter);
+    if (!painter) {
+        return;
+    }
     Q_D(QuickWindowBorder);
-    d->paint(painter);
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 10, 0))
+    const QSize s = size().toSize();
+#else
+    const QSize s = QSizeF{ width(), height() }.toSize();
+#endif
+    d->borderPainter->paint(painter, s, (window() && window()->isActive()));
 }
 
 qreal QuickWindowBorder::thickness() const
 {
     Q_D(const QuickWindowBorder);
-    return ((d->m_borderPainter == nullptr) ? 0 : d->m_borderPainter->thickness());
+    return ((d->borderPainter == nullptr) ? 0 : d->borderPainter->thickness());
 }
 
 QuickGlobal::WindowEdges QuickWindowBorder::edges() const
 {
     Q_D(const QuickWindowBorder);
-    return ((d->m_borderPainter == nullptr) ? QuickGlobal::WindowEdges()
+    return ((d->borderPainter == nullptr) ? QuickGlobal::WindowEdges()
-        : edgesToQuickEdges(d->m_borderPainter->edges()));
+        : edgesToQuickEdges(d->borderPainter->edges()));
 }
 
 QColor QuickWindowBorder::activeColor() const
 {
     Q_D(const QuickWindowBorder);
-    return ((d->m_borderPainter == nullptr) ? QColor() : d->m_borderPainter->activeColor());
+    return ((d->borderPainter == nullptr) ? QColor() : d->borderPainter->activeColor());
 }
 
 QColor QuickWindowBorder::inactiveColor() const
 {
     Q_D(const QuickWindowBorder);
-    return ((d->m_borderPainter == nullptr) ? QColor() : d->m_borderPainter->inactiveColor());
+    return ((d->borderPainter == nullptr) ? QColor() : d->borderPainter->inactiveColor());
 }
 
 qreal QuickWindowBorder::nativeThickness() const
 {
     Q_D(const QuickWindowBorder);
-    return ((d->m_borderPainter == nullptr) ? 0 : d->m_borderPainter->nativeThickness());
+    return ((d->borderPainter == nullptr) ? 0 : d->borderPainter->nativeThickness());
 }
 
 QuickGlobal::WindowEdges QuickWindowBorder::nativeEdges() const
 {
     Q_D(const QuickWindowBorder);
-    return ((d->m_borderPainter == nullptr) ? QuickGlobal::WindowEdges()
+    return ((d->borderPainter == nullptr) ? QuickGlobal::WindowEdges()
-        : edgesToQuickEdges(d->m_borderPainter->nativeEdges()));
+        : edgesToQuickEdges(d->borderPainter->nativeEdges()));
 }
 
 QColor QuickWindowBorder::nativeActiveColor() const
 {
     Q_D(const QuickWindowBorder);
-    return ((d->m_borderPainter == nullptr) ? QColor() : d->m_borderPainter->nativeActiveColor());
+    return ((d->borderPainter == nullptr) ? QColor() : d->borderPainter->nativeActiveColor());
 }
 
 QColor QuickWindowBorder::nativeInactiveColor() const
 {
     Q_D(const QuickWindowBorder);
-    return ((d->m_borderPainter == nullptr) ? QColor() : d->m_borderPainter->nativeInactiveColor());
+    return ((d->borderPainter == nullptr) ? QColor() : d->borderPainter->nativeInactiveColor());
 }
 
 void QuickWindowBorder::setThickness(const qreal value)
 {
     Q_D(QuickWindowBorder);
-    if (!d->m_borderPainter) {
+    if (!d->borderPainter) {
         return;
     }
     if (qFuzzyCompare(thickness(), value)) {
         return;
     }
-    d->m_borderPainter->setThickness(std::round(value));
+    d->borderPainter->setThickness(std::round(value));
 }
 
 void QuickWindowBorder::setEdges(const QuickGlobal::WindowEdges value)
 {
     Q_D(QuickWindowBorder);
-    if (!d->m_borderPainter) {
+    if (!d->borderPainter) {
         return;
     }
     if (edges() == value) {
         return;
     }
-    d->m_borderPainter->setEdges(quickEdgesToEdges(value));
+    d->borderPainter->setEdges(quickEdgesToEdges(value));
 }
 
 void QuickWindowBorder::setActiveColor(const QColor &value)
 {
     Q_D(QuickWindowBorder);
-    if (!d->m_borderPainter) {
+    if (!d->borderPainter) {
         return;
     }
     if (activeColor() == value) {
         return;
     }
-    d->m_borderPainter->setActiveColor(value);
+    d->borderPainter->setActiveColor(value);
 }
 
 void QuickWindowBorder::setInactiveColor(const QColor &value)
 {
     Q_D(QuickWindowBorder);
-    if (!d->m_borderPainter) {
+    if (!d->borderPainter) {
         return;
     }
     if (inactiveColor() == value) {
         return;
     }
-    d->m_borderPainter->setInactiveColor(value);
+    d->borderPainter->setInactiveColor(value);
 }
 
 void QuickWindowBorder::itemChange(const ItemChange change, const ItemChangeData &value)

src/widgets/framelesswidgetshelper.cpp

@@ -384,6 +384,9 @@ FramelessWidgetsHelper *FramelessWidgetsHelperPrivate::findOrCreateFramelessHelp
     if (!instance) {
         instance = new FramelessWidgetsHelper(parent);
         instance->extendsContentIntoTitleBar();
+        if (parent->inherits("QDialog")) {
+            instance->setWindowFixedSize(true);
+        }
     }
     return instance;
 }
@@ -906,7 +909,7 @@ void FramelessWidgetsHelperPrivate::setSystemButton(QWidget *widget, const Syste
         data->closeButton = widget;
         break;
     case SystemButtonType::Unknown:
-        Q_UNREACHABLE_RETURN(void(0));
+        Q_UNREACHABLE();
     }
 }
 

src/widgets/standardtitlebar.cpp

@@ -374,6 +374,9 @@ bool StandardTitleBarPrivate::mouseEventHandler(QMouseEvent *event)
 QRect StandardTitleBarPrivate::windowIconRect() const
 {
     Q_Q(const StandardTitleBar);
+    if (!windowIconVisible_real()) {
+        return {};
+    }
     const QSize size = windowIconSize();
 #ifdef Q_OS_MACOS
     const auto x = [this, q, &size]() -> int {