add mica mica alt acrylic

Yuhang Zhao

2023-12-21 0e9c2e428fb61953fd8f152125897646fe6fd337

 src/core/contexts/win32windowcontext.cpp

@@ -62,6 +62,82 @@
        _DWMWA_MICA_EFFECT = 1029
    };

    // Types used with DWMWA_SYSTEMBACKDROP_TYPE
    enum _DWM_SYSTEMBACKDROP_TYPE {
        _DWMSBT_AUTO,             // [Default] Let DWM automatically decide the system-drawn backdrop for this window.
        _DWMSBT_NONE,             // [Disable] Do not draw any system backdrop.
        _DWMSBT_MAINWINDOW,       // [Mica] Draw the backdrop material effect corresponding to a long-lived window.
        _DWMSBT_TRANSIENTWINDOW,  // [Acrylic] Draw the backdrop material effect corresponding to a transient window.
        _DWMSBT_TABBEDWINDOW,     // [Mica Alt] Draw the backdrop material effect corresponding to a window with a tabbed title bar.
    };

    enum WINDOWCOMPOSITIONATTRIB {
        WCA_UNDEFINED = 0,
        WCA_NCRENDERING_ENABLED = 1,
        WCA_NCRENDERING_POLICY = 2,
        WCA_TRANSITIONS_FORCEDISABLED = 3,
        WCA_ALLOW_NCPAINT = 4,
        WCA_CAPTION_BUTTON_BOUNDS = 5,
        WCA_NONCLIENT_RTL_LAYOUT = 6,
        WCA_FORCE_ICONIC_REPRESENTATION = 7,
        WCA_EXTENDED_FRAME_BOUNDS = 8,
        WCA_HAS_ICONIC_BITMAP = 9,
        WCA_THEME_ATTRIBUTES = 10,
        WCA_NCRENDERING_EXILED = 11,
        WCA_NCADORNMENTINFO = 12,
        WCA_EXCLUDED_FROM_LIVEPREVIEW = 13,
        WCA_VIDEO_OVERLAY_ACTIVE = 14,
        WCA_FORCE_ACTIVEWINDOW_APPEARANCE = 15,
        WCA_DISALLOW_PEEK = 16,
        WCA_CLOAK = 17,
        WCA_CLOAKED = 18,
        WCA_ACCENT_POLICY = 19,
        WCA_FREEZE_REPRESENTATION = 20,
        WCA_EVER_UNCLOAKED = 21,
        WCA_VISUAL_OWNER = 22,
        WCA_HOLOGRAPHIC = 23,
        WCA_EXCLUDED_FROM_DDA = 24,
        WCA_PASSIVEUPDATEMODE = 25,
        WCA_USEDARKMODECOLORS = 26,
        WCA_CORNER_STYLE = 27,
        WCA_PART_COLOR = 28,
        WCA_DISABLE_MOVESIZE_FEEDBACK = 29,
        WCA_LAST = 30
    };

    enum ACCENT_STATE {
        ACCENT_DISABLED = 0,
        ACCENT_ENABLE_GRADIENT = 1,
        ACCENT_ENABLE_TRANSPARENTGRADIENT = 2,
        ACCENT_ENABLE_BLURBEHIND = 3, // Traditional DWM blur
        ACCENT_ENABLE_ACRYLICBLURBEHIND = 4, // RS4 1803
        ACCENT_ENABLE_HOST_BACKDROP = 5, // RS5 1809
        ACCENT_INVALID_STATE = 6 // Using this value will remove the window background
    };

    enum ACCENT_FLAG {
        ACCENT_NONE = 0,
        ACCENT_ENABLE_ACRYLIC = 1,
        ACCENT_ENABLE_ACRYLIC_WITH_LUMINOSITY = 482
    };

    struct ACCENT_POLICY {
        DWORD dwAccentState;
        DWORD dwAccentFlags;
        DWORD dwGradientColor; // #AABBGGRR
        DWORD dwAnimationId;
    };
    using PACCENT_POLICY = ACCENT_POLICY *;

    struct WINDOWCOMPOSITIONATTRIBDATA {
        WINDOWCOMPOSITIONATTRIB Attrib;
        PVOID pvData;
        SIZE_T cbData;
    };
    using PWINDOWCOMPOSITIONATTRIBDATA = WINDOWCOMPOSITIONATTRIBDATA *;

    using SetWindowCompositionAttributePtr = BOOL(WINAPI *)(HWND, PWINDOWCOMPOSITIONATTRIBDATA);

    // The thickness of an auto-hide taskbar in pixels.
    static constexpr const quint8 kAutoHideTaskBarThickness = 2;

@@ -105,6 +181,7 @@
        DYNAMIC_API_DECLARE(DwmGetCompositionTimingInfo);
        DYNAMIC_API_DECLARE(DwmGetWindowAttribute);
        DYNAMIC_API_DECLARE(DwmSetWindowAttribute);
        DYNAMIC_API_DECLARE(DwmExtendFrameIntoClientArea);
        DYNAMIC_API_DECLARE(GetDpiForWindow);
        DYNAMIC_API_DECLARE(GetSystemMetricsForDpi);
        DYNAMIC_API_DECLARE(GetDpiForMonitor);
@@ -114,6 +191,8 @@

#undef DYNAMIC_API_DECLARE

        SetWindowCompositionAttributePtr pSetWindowCompositionAttribute = nullptr;

    private:
        DynamicApis() {
#define DYNAMIC_API_RESOLVE(DLL, NAME)                                                             \
@@ -122,6 +201,7 @@
            QSystemLibrary user32(QStringLiteral("user32"));
            DYNAMIC_API_RESOLVE(user32, GetDpiForWindow);
            DYNAMIC_API_RESOLVE(user32, GetSystemMetricsForDpi);
            DYNAMIC_API_RESOLVE(user32, SetWindowCompositionAttribute);

            QSystemLibrary shcore(QStringLiteral("shcore"));
            DYNAMIC_API_RESOLVE(shcore, GetDpiForMonitor);
@@ -132,6 +212,7 @@
            DYNAMIC_API_RESOLVE(dwmapi, DwmGetCompositionTimingInfo);
            DYNAMIC_API_RESOLVE(dwmapi, DwmGetWindowAttribute);
            DYNAMIC_API_RESOLVE(dwmapi, DwmSetWindowAttribute);
            DYNAMIC_API_RESOLVE(dwmapi, DwmExtendFrameIntoClientArea);

            QSystemLibrary winmm(QStringLiteral("winmm"));
            DYNAMIC_API_RESOLVE(winmm, timeGetDevCaps);
@@ -243,6 +324,11 @@

    static inline bool isWin11OrGreater() {
        static const bool result = IsWindows11OrGreater_Real();
        return result;
    }

    static inline bool isWin1122H2OrGreater() {
        static const bool result = IsWindows1122H2OrGreater_Real();
        return result;
    }

@@ -379,16 +465,7 @@
               getSystemMetricsForDpi(SM_CXPADDEDBORDER, dpi);
    }

    static void updateInternalWindowFrameMargins(HWND hwnd, QWindow *window) {
        const auto margins = [hwnd]() -> QMargins {
            const auto titleBarHeight = int(getTitleBarHeight(hwnd));
            if (isWin10OrGreater()) {
                return {0, -titleBarHeight, 0, 0};
            } else {
                const auto frameSize = int(getResizeBorderThickness(hwnd));
                return {-frameSize, -titleBarHeight, -frameSize, -frameSize};
            }
        }();
    static void setInternalWindowFrameMargins(QWindow *window, const QMargins &margins) {
        const QVariant marginsVar = QVariant::fromValue(margins);
        window->setProperty("_q_windowsCustomMargins", marginsVar);
#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
@@ -829,7 +906,20 @@
        return ::CallWindowProcW(g_qtWindowProc, hWnd, message, wParam, lParam);
    }

    static inline void addManagedWindow(HWND hWnd, Win32WindowContext *ctx) {
    static inline void addManagedWindow(QWindow *window, HWND hWnd, Win32WindowContext *ctx) {
        const auto margins = [hWnd]() -> QMargins {
            const auto titleBarHeight = int(getTitleBarHeight(hWnd));
            if (isWin10OrGreater()) {
                return {0, -titleBarHeight, 0, 0};
            } else {
                const auto frameSize = int(getResizeBorderThickness(hWnd));
                return {-frameSize, -titleBarHeight, -frameSize, -frameSize};
            }
        }();

        // Inform Qt we want and have set custom margins
        setInternalWindowFrameMargins(window, margins);

        // Store original window proc
        if (!g_qtWindowProc) {
            g_qtWindowProc = reinterpret_cast<WNDPROC>(::GetWindowLongPtrW(hWnd, GWLP_WNDPROC));
@@ -845,7 +935,6 @@
        g_wndProcHash->insert(hWnd, ctx);
    }

    template <bool Destroyed = true>
    static inline void removeManagedWindow(HWND hWnd) {
        // Remove window handle mapping
        if (!g_wndProcHash->remove(hWnd))
@@ -854,11 +943,6 @@
        // Remove event filter if the all windows has been destroyed
        if (g_wndProcHash->empty()) {
            WindowsNativeEventFilter::uninstall();
        }

        // Restore window proc
        if constexpr (!Destroyed) {
            ::SetWindowLongPtrW(hWnd, GWLP_WNDPROC, reinterpret_cast<LONG_PTR>(g_qtWindowProc));
        }
    }

@@ -878,18 +962,24 @@
    void Win32WindowContext::virtual_hook(int id, void *data) {
        switch (id) {
            case CentralizeHook: {
                if (!windowId)
                    return;
                const auto hwnd = reinterpret_cast<HWND>(windowId);
                moveWindowToDesktopCenter(hwnd);
                return;
            }

            case RaiseWindowHook: {
                if (!windowId)
                    return;
                const auto hwnd = reinterpret_cast<HWND>(windowId);
                bringWindowToFront(hwnd);
                return;
            }

            case ShowSystemMenuHook: {
                if (!windowId)
                    return;
                const auto &pos = *static_cast<const QPoint *>(data);
                auto hWnd = reinterpret_cast<HWND>(windowId);
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
@@ -909,14 +999,104 @@
                const auto &newVar = *static_cast<const QVariant *>(args[1]);
                const auto &oldVar = *static_cast<const QVariant *>(args[2]);

                if (key == QStringLiteral("no-frame-shadow")) {
                if (!windowId)
                    return;
                const auto hwnd = reinterpret_cast<HWND>(windowId);

                const DynamicApis &apis = DynamicApis::instance();

                if (key == QStringLiteral("frame-shadow")) {
                    if (newVar.toBool()) {
                        // TODO: set off
                    } else {
                        // TODO: set on
                    }
                } else if (key == QStringLiteral("mica")) {
                    if (!isWin11OrGreater()) {
                        return;
                    }
                    if (newVar.toBool()) {
                        // We need to extend the window frame into the whole client area to be able
                        // to see the blurred window background.
                        static constexpr const MARGINS margins = {-1, -1, -1, -1};
                        apis.pDwmExtendFrameIntoClientArea(hwnd, &margins);
                        if (isWin1122H2OrGreater()) {
                            // Use official DWM API to enable Mica, available since Windows 11 22H2 (10.0.22621).
                            const _DWM_SYSTEMBACKDROP_TYPE backdropType = _DWMSBT_MAINWINDOW;
                            apis.pDwmSetWindowAttribute(hwnd, _DWMWA_SYSTEMBACKDROP_TYPE, &backdropType, sizeof(backdropType));
                        } else {
                            // Use undocumented DWM API to enable Mica, available since Windows 11 (10.0.22000).
                            const BOOL enable = TRUE;
                            apis.pDwmSetWindowAttribute(hwnd, _DWMWA_MICA_EFFECT, &enable, sizeof(enable));
                        }
                    } else {
                        if (isWin1122H2OrGreater()) {
                            const _DWM_SYSTEMBACKDROP_TYPE backdropType = _DWMSBT_AUTO;
                            apis.pDwmSetWindowAttribute(hwnd, _DWMWA_SYSTEMBACKDROP_TYPE, &backdropType, sizeof(backdropType));
                        } else {
                            const BOOL enable = FALSE;
                            apis.pDwmSetWindowAttribute(hwnd, _DWMWA_MICA_EFFECT, &enable, sizeof(enable));
                        }
                        static constexpr const MARGINS margins = {0, 0, 0, 0};
                        apis.pDwmExtendFrameIntoClientArea(hwnd, &margins);
                    }
                } else if (key == QStringLiteral("mica-alt")) {
                    if (!isWin1122H2OrGreater()) {
                        return;
                    }
                    if (newVar.toBool()) {
                        // We need to extend the window frame into the whole client area to be able
                        // to see the blurred window background.
                        static constexpr const MARGINS margins = {-1, -1, -1, -1};
                        apis.pDwmExtendFrameIntoClientArea(hwnd, &margins);
                        // Use official DWM API to enable Mica Alt, available since Windows 11 22H2 (10.0.22621).
                        const _DWM_SYSTEMBACKDROP_TYPE backdropType = _DWMSBT_TABBEDWINDOW;
                        apis.pDwmSetWindowAttribute(hwnd, _DWMWA_SYSTEMBACKDROP_TYPE, &backdropType, sizeof(backdropType));
                    } else {
                        const _DWM_SYSTEMBACKDROP_TYPE backdropType = _DWMSBT_AUTO;
                        apis.pDwmSetWindowAttribute(hwnd, _DWMWA_SYSTEMBACKDROP_TYPE, &backdropType, sizeof(backdropType));
                        static constexpr const MARGINS margins = {0, 0, 0, 0};
                        apis.pDwmExtendFrameIntoClientArea(hwnd, &margins);
                    }
                } else if (key == QStringLiteral("acrylic-material")) {
                    if (newVar.toBool()) {
                        // We need to extend the window frame into the whole client area to be able
                        // to see the blurred window background.
                        static constexpr const MARGINS margins = {-1, -1, -1, -1};
                        apis.pDwmExtendFrameIntoClientArea(hwnd, &margins);
                        if (isWin11OrGreater()) {
                            const _DWM_SYSTEMBACKDROP_TYPE backdropType = _DWMSBT_TRANSIENTWINDOW;
                            apis.pDwmSetWindowAttribute(hwnd, _DWMWA_SYSTEMBACKDROP_TYPE, &backdropType, sizeof(backdropType));
                        } else {
                            ACCENT_POLICY policy{};
                            policy.dwAccentState = ACCENT_ENABLE_ACRYLICBLURBEHIND;
                            policy.dwAccentFlags = ACCENT_ENABLE_ACRYLIC_WITH_LUMINOSITY;
                            // This API expects the #AABBGGRR format.
                            //policy.dwGradientColor = DWORD(qRgba(gradientColor.blue(), gradientColor.green(), gradientColor.red(), gradientColor.alpha()));
                            WINDOWCOMPOSITIONATTRIBDATA wcad{};
                            wcad.Attrib = WCA_ACCENT_POLICY;
                            wcad.pvData = &policy;
                            wcad.cbData = sizeof(policy);
                            apis.pSetWindowCompositionAttribute(hwnd, &wcad);
                        }
                    } else {
                        if (isWin11OrGreater()) {
                            const _DWM_SYSTEMBACKDROP_TYPE backdropType = _DWMSBT_AUTO;
                            apis.pDwmSetWindowAttribute(hwnd, _DWMWA_SYSTEMBACKDROP_TYPE, &backdropType, sizeof(backdropType));
                        } else {
                            ACCENT_POLICY policy{};
                            policy.dwAccentState = ACCENT_DISABLED;
                            policy.dwAccentFlags = ACCENT_NONE;
                            WINDOWCOMPOSITIONATTRIBDATA wcad{};
                            wcad.Attrib = WCA_ACCENT_POLICY;
                            wcad.pvData = &policy;
                            wcad.cbData = sizeof(policy);
                            apis.pSetWindowCompositionAttribute(hwnd, &wcad);
                        }
                        static constexpr const MARGINS margins = {0, 0, 0, 0};
                        apis.pDwmExtendFrameIntoClientArea(hwnd, &margins);
                    }
                }

                return;
            }

@@ -931,6 +1111,9 @@
            }

            case DrawWindows10BorderHook: {
                if (!windowId)
                    return;

                auto args = static_cast<void **>(data);
                auto &painter = *static_cast<QPainter *>(args[0]);
                const auto &rect = *static_cast<const QRect *>(args[1]);
@@ -984,12 +1167,13 @@
        return getWindowFrameBorderThickness(reinterpret_cast<HWND>(windowId));
    }

    void Win32WindowContext::winIdChanged(QWindow *oldWindow, bool isDestroyed) {
        if (isDestroyed) {
    void Win32WindowContext::winIdChanged() {
        // If the original window id is valid, remove all resources related
        if (windowId) {
            removeManagedWindow(reinterpret_cast<HWND>(windowId));
        } else {
            removeManagedWindow<false>(reinterpret_cast<HWND>(windowId));
            windowId = 0;
        }

        if (!m_windowHandle) {
            return;
        }
@@ -1008,11 +1192,8 @@
        }
#endif

        // Inform Qt we want and have set custom margins
        updateInternalWindowFrameMargins(hWnd, m_windowHandle); // TODO: Restore?

        // Add managed window
        addManagedWindow(hWnd, this);
        addManagedWindow(m_windowHandle, hWnd, this);

        // Cache win id
        windowId = winId;