Add WinRegKey support

Sine Striker

2023-12-29 6eb2efea00eb07ce3a6b089b984885ce4a08c9ca

 src/core/shared/qwkwindowsextra_p.h

@@ -15,10 +15,9 @@
#include <timeapi.h>

#include <QWKCore/qwindowkit_windows.h>

#include <QtCore/private/qsystemlibrary_p.h>
#include <QtCore/private/qwinregistry_p.h>

#include <QtGui/QGuiApplication>
#include <QtGui/QStyleHints>
#include <QtGui/QPalette>

@@ -131,7 +130,26 @@
    };
    using PWINDOWCOMPOSITIONATTRIBDATA = WINDOWCOMPOSITIONATTRIBDATA *;

    enum PREFERRED_APP_MODE {
        PAM_DEFAULT = 0, // Default behavior on systems before Win10 1809. It indicates the
                         // application doesn't support dark mode at all.
        PAM_AUTO =
            1, // Available since Win10 1809, let system decide whether to enable dark mode or not.
        PAM_DARK = 2, // Available since Win10 1903, force dark mode regardless of the system theme.
        PAM_LIGHT =
            3, // Available since Win10 1903, force light mode regardless of the system theme.
        PAM_MAX = 4
    };

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

    // Win10 1809 (10.0.17763)
    using RefreshImmersiveColorPolicyStatePtr = VOID(WINAPI *)(VOID); // Ordinal 104
    using AllowDarkModeForWindowPtr = BOOL(WINAPI *)(HWND, BOOL);     // Ordinal 133
    using AllowDarkModeForAppPtr = BOOL(WINAPI *)(BOOL);              // Ordinal 135
    using FlushMenuThemesPtr = VOID(WINAPI *)(VOID);                  // Ordinal 136
    // Win10 1903 (10.0.18362)
    using SetPreferredAppModePtr = PREFERRED_APP_MODE(WINAPI *)(PREFERRED_APP_MODE); // Ordinal 135

    namespace {

@@ -152,6 +170,7 @@
            DYNAMIC_API_DECLARE(DwmEnableBlurBehindWindow);
            DYNAMIC_API_DECLARE(GetDpiForWindow);
            DYNAMIC_API_DECLARE(GetSystemMetricsForDpi);
            DYNAMIC_API_DECLARE(AdjustWindowRectExForDpi);
            DYNAMIC_API_DECLARE(GetDpiForMonitor);
            DYNAMIC_API_DECLARE(timeGetDevCaps);
            DYNAMIC_API_DECLARE(timeBeginPeriod);
@@ -160,6 +179,11 @@
#undef DYNAMIC_API_DECLARE

            SetWindowCompositionAttributePtr pSetWindowCompositionAttribute = nullptr;
            RefreshImmersiveColorPolicyStatePtr pRefreshImmersiveColorPolicyState = nullptr;
            AllowDarkModeForWindowPtr pAllowDarkModeForWindow = nullptr;
            AllowDarkModeForAppPtr pAllowDarkModeForApp = nullptr;
            FlushMenuThemesPtr pFlushMenuThemes = nullptr;
            SetPreferredAppModePtr pSetPreferredAppMode = nullptr;

        private:
            DynamicApis() {
@@ -170,6 +194,7 @@
                DYNAMIC_API_RESOLVE(user32, GetDpiForWindow);
                DYNAMIC_API_RESOLVE(user32, GetSystemMetricsForDpi);
                DYNAMIC_API_RESOLVE(user32, SetWindowCompositionAttribute);
                DYNAMIC_API_RESOLVE(user32, AdjustWindowRectExForDpi);

                QSystemLibrary shcore(QStringLiteral("shcore"));
                DYNAMIC_API_RESOLVE(shcore, GetDpiForMonitor);
@@ -189,11 +214,23 @@
                DYNAMIC_API_RESOLVE(winmm, timeEndPeriod);

#undef DYNAMIC_API_RESOLVE

#define UNDOC_API_RESOLVE(DLL, NAME, ORDINAL)                                                      \
    p##NAME = reinterpret_cast<decltype(p##NAME)>(DLL.resolve(MAKEINTRESOURCEA(ORDINAL)))

                QSystemLibrary uxtheme(QStringLiteral("uxtheme"));
                UNDOC_API_RESOLVE(uxtheme, RefreshImmersiveColorPolicyState, 104);
                UNDOC_API_RESOLVE(uxtheme, AllowDarkModeForWindow, 133);
                UNDOC_API_RESOLVE(uxtheme, AllowDarkModeForApp, 135);
                UNDOC_API_RESOLVE(uxtheme, FlushMenuThemes, 136);
                UNDOC_API_RESOLVE(uxtheme, SetPreferredAppMode, 135);

#undef UNDOC_API_RESOLVE
            }

            ~DynamicApis() = default;

            Q_DISABLE_COPY_MOVE(DynamicApis)
            Q_DISABLE_COPY(DynamicApis)
        };

    }
@@ -267,6 +304,15 @@
                    LONG(qrect.bottom())};
    }

    static inline constexpr QMargins margins2qmargins(const MARGINS &margins) {
        return {margins.cxLeftWidth, margins.cyTopHeight, margins.cxRightWidth,
                margins.cyBottomHeight};
    }

    static inline constexpr MARGINS qmargins2margins(const QMargins &qmargins) {
        return {qmargins.left(), qmargins.right(), qmargins.top(), qmargins.bottom()};
    }

    static inline /*constexpr*/ QString hwnd2str(const WId windowId) {
        // NULL handle is allowed here.
        return QLatin1String("0x") +
@@ -276,36 +322,6 @@
    static inline /*constexpr*/ QString hwnd2str(HWND hwnd) {
        // NULL handle is allowed here.
        return hwnd2str(reinterpret_cast<WId>(hwnd));
    }

    static inline bool isWin8OrGreater() {
        static const bool result = IsWindows8OrGreater_Real();
        return result;
    }

    static inline bool isWin8Point1OrGreater() {
        static const bool result = IsWindows8Point1OrGreater_Real();
        return result;
    }

    static inline bool isWin10OrGreater() {
        static const bool result = IsWindows10OrGreater_Real();
        return result;
    }

    static inline bool isWin101809OrGreater() {
        static const bool result = IsWindows101809OrGreater_Real();
        return result;
    }

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

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

    static inline bool isDwmCompositionEnabled() {
@@ -321,11 +337,11 @@
    }

    static inline bool isWindowFrameBorderColorized() {
        const QWinRegistryKey registry(HKEY_CURRENT_USER, LR"(Software\Microsoft\Windows\DWM)");
        WindowsRegistryKey registry(HKEY_CURRENT_USER, LR"(Software\Microsoft\Windows\DWM)");
        if (!registry.isValid()) {
            return false;
        }
        const auto value = registry.dwordValue(L"ColorPrevalence");
        auto value = registry.dwordValue(L"ColorPrevalence");
        if (!value.second) {
            return false;
        }
@@ -343,12 +359,12 @@
#if QT_VERSION >= QT_VERSION_CHECK(6, 5, 0)
        return QGuiApplication::styleHints()->colorScheme() == Qt::ColorScheme::Dark;
#else
        const QWinRegistryKey registry(
        WindowsRegistryKey registry(
            HKEY_CURRENT_USER, LR"(Software\Microsoft\Windows\CurrentVersion\Themes\Personalize)");
        if (!registry.isValid()) {
            return false;
        }
        const auto value = registry.dwordValue(L"AppsUseLightTheme");
        auto value = registry.dwordValue(L"AppsUseLightTheme");
        if (!value.second) {
            return false;
        }
@@ -366,33 +382,81 @@
                                                         _DWMWA_USE_IMMERSIVE_DARK_MODE_BEFORE_20H1,
                                                         &enabled, sizeof(enabled)))) {
            return enabled;
        } else {
            return false;
        }
        return false;
    }

    static inline QColor getAccentColor() {
#if QT_VERSION >= QT_VERSION_CHECK(6, 6, 0)
        return QGuiApplication::palette().color(QPalette::Accent);
#else
        const QWinRegistryKey registry(HKEY_CURRENT_USER, LR"(Software\Microsoft\Windows\DWM)");
        WindowsRegistryKey registry(HKEY_CURRENT_USER, LR"(Software\Microsoft\Windows\DWM)");
        if (!registry.isValid()) {
            return {};
        }
        const auto value = registry.dwordValue(L"AccentColor");
        auto value = registry.dwordValue(L"AccentColor");
        if (!value.second) {
            return {};
        }
        // The retrieved value is in the #AABBGGRR format, we need to
        // convert it to the #AARRGGBB format which Qt expects.
        const QColor abgr = QColor::fromRgba(value.first);
        if (!abgr.isValid()) {
        QColor color = QColor::fromRgba(value.first);
        if (!color.isValid()) {
            return {};
        }
        return QColor::fromRgb(abgr.blue(), abgr.green(), abgr.red(), abgr.alpha());
        return QColor::fromRgb(color.blue(), color.green(), color.red(), color.alpha());
#endif
    }

    static inline quint32 getDpiForWindow(HWND hwnd) {
        const DynamicApis &apis = DynamicApis::instance();
        if (apis.pGetDpiForWindow) {         // Win10
            return apis.pGetDpiForWindow(hwnd);
        } else if (apis.pGetDpiForMonitor) { // Win8.1
            HMONITOR monitor = ::MonitorFromWindow(hwnd, MONITOR_DEFAULTTONEAREST);
            UINT dpiX{0};
            UINT dpiY{0};
            apis.pGetDpiForMonitor(monitor, MDT_EFFECTIVE_DPI, &dpiX, &dpiY);
            return dpiX;
        } else { // Win2K
            HDC hdc = ::GetDC(nullptr);
            const int dpiX = ::GetDeviceCaps(hdc, LOGPIXELSX);
            // const int dpiY = ::GetDeviceCaps(hdc, LOGPIXELSY);
            ::ReleaseDC(nullptr, hdc);
            return quint32(dpiX);
        }
    }

    static inline quint32 getSystemMetricsForDpi(int index, quint32 dpi) {
        const DynamicApis &apis = DynamicApis::instance();
        if (apis.pGetSystemMetricsForDpi) {
            return ::GetSystemMetricsForDpi(index, dpi);
        }
        return ::GetSystemMetrics(index);
    }

    static inline quint32 getWindowFrameBorderThickness(HWND hwnd) {
        const DynamicApis &apis = DynamicApis::instance();
        if (UINT result = 0; SUCCEEDED(apis.pDwmGetWindowAttribute(
                hwnd, _DWMWA_VISIBLE_FRAME_BORDER_THICKNESS, &result, sizeof(result)))) {
            return result;
        }
        return getSystemMetricsForDpi(SM_CXBORDER, getDpiForWindow(hwnd));
    }

    static inline quint32 getResizeBorderThickness(HWND hwnd) {
        const quint32 dpi = getDpiForWindow(hwnd);
        return getSystemMetricsForDpi(SM_CXSIZEFRAME, dpi) +
               getSystemMetricsForDpi(SM_CXPADDEDBORDER, dpi);
    }

    static inline quint32 getTitleBarHeight(HWND hwnd) {
        const quint32 dpi = getDpiForWindow(hwnd);
        return getSystemMetricsForDpi(SM_CYCAPTION, dpi) +
               getSystemMetricsForDpi(SM_CXSIZEFRAME, dpi) +
               getSystemMetricsForDpi(SM_CXPADDEDBORDER, dpi);
    }

}

#endif // QWKWINDOWSEXTRA_P_H