126 lines
4.6 KiB
C++
126 lines
4.6 KiB
C++
#pragma once
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#include <QAbstractNativeEventFilter>
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#include <QRect>
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#include <QVector>
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#include <qt_windows.h>
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class WinNativeEventFilter : public QAbstractNativeEventFilter {
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Q_DISABLE_COPY_MOVE(WinNativeEventFilter)
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public:
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using WINDOWDATA = struct _WINDOWDATA {
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BOOL blurEnabled = FALSE;
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int borderWidth = -1, borderHeight = -1, titlebarHeight = -1;
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QVector<QRect> ignoreAreas, draggableAreas;
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QSize minimumSize = {-1, -1};
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};
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typedef struct tagWINDOW {
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HWND hWnd = nullptr;
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BOOL dwmCompositionEnabled = FALSE, themeEnabled = FALSE,
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inited = FALSE;
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WINDOWDATA windowData;
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} WINDOW, *LPWINDOW;
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explicit WinNativeEventFilter();
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~WinNativeEventFilter() override;
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// Make all top level windows become frameless, unconditionally.
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static void install();
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// Make all top level windows back to normal.
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static void uninstall();
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// Frameless windows handle list
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static QVector<HWND> framelessWindows();
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static void setFramelessWindows(QVector<HWND> windows);
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// Make the given window become frameless.
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static void addFramelessWindow(HWND window, WINDOWDATA *data = nullptr);
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static void removeFramelessWindow(HWND window);
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static void clearFramelessWindows();
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// Set borderWidth, borderHeight or titlebarHeight to a negative value to restore default behavior.
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static void setWindowData(HWND window, WINDOWDATA *data);
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static WINDOWDATA *windowData(HWND window);
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// Dots-Per-Inch of the given window (or screen if the pointer is null).
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UINT windowDpi(HWND handle) const;
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// Device-Pixel-Ratio of the given window (or screen if the pointer is null).
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qreal windowDpr(HWND handle) const;
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// DPI-aware border width of the given window.
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int borderWidth(HWND handle) const;
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// DPI-aware border height of the given window.
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int borderHeight(HWND handle) const;
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// DPI-aware titlebar height of the given window.
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int titlebarHeight(HWND handle) const;
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// Let the given window redraw itself.
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static void refreshWindow(HWND handle);
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#if (QT_VERSION >= QT_VERSION_CHECK(6, 0, 0))
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bool nativeEventFilter(const QByteArray &eventType, void *message,
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qintptr *result) override;
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#else
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bool nativeEventFilter(const QByteArray &eventType, void *message,
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long *result) override;
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#endif
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private:
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void init(LPWINDOW data);
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static void createUserData(HWND handle, WINDOWDATA *data = nullptr);
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void handleDwmCompositionChanged(LPWINDOW data);
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void handleThemeChanged(LPWINDOW data);
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void handleBlurForWindow(LPWINDOW data);
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UINT getDpiForWindow(HWND handle) const;
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qreal getDprForWindow(HWND handle) const;
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int getSystemMetricsForWindow(HWND handle, int index) const;
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private:
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using WINDOWCOMPOSITIONATTRIB = enum _WINDOWCOMPOSITIONATTRIB {
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WCA_ACCENT_POLICY = 19
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};
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using WINDOWCOMPOSITIONATTRIBDATA = struct _WINDOWCOMPOSITIONATTRIBDATA {
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DWORD dwAttribute;
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PVOID pvAttribute;
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DWORD cbAttribute;
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};
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using ACCENT_STATE = enum _ACCENT_STATE {
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ACCENT_DISABLED = 0,
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ACCENT_ENABLE_GRADIENT = 1,
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ACCENT_ENABLE_TRANSPARENTGRADIENT = 2,
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ACCENT_ENABLE_BLURBEHIND = 3,
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ACCENT_ENABLE_ACRYLICBLURBEHIND = 4,
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ACCENT_INVALID_STATE = 5
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};
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using ACCENT_POLICY = struct _ACCENT_POLICY {
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ACCENT_STATE AccentState;
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DWORD AccentFlags;
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DWORD GradientColor;
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DWORD AnimationId;
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};
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using MONITOR_DPI_TYPE = enum _MONITOR_DPI_TYPE {
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MDT_EFFECTIVE_DPI = 0,
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MDT_ANGULAR_DPI = 1,
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MDT_RAW_DPI = 2,
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MDT_DEFAULT = MDT_EFFECTIVE_DPI
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};
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const UINT m_defaultDPI = 96;
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const qreal m_defaultDPR = 1.0;
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using lpGetSystemDpiForProcess = UINT(WINAPI *)(HANDLE);
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lpGetSystemDpiForProcess m_GetSystemDpiForProcess = nullptr;
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using lpGetDpiForWindow = UINT(WINAPI *)(HWND);
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lpGetDpiForWindow m_GetDpiForWindow = nullptr;
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using lpGetDpiForSystem = UINT(WINAPI *)();
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lpGetDpiForSystem m_GetDpiForSystem = nullptr;
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using lpGetSystemMetricsForDpi = int(WINAPI *)(int, UINT);
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lpGetSystemMetricsForDpi m_GetSystemMetricsForDpi = nullptr;
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using lpGetDpiForMonitor = HRESULT(WINAPI *)(HMONITOR, MONITOR_DPI_TYPE,
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UINT *, UINT *);
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lpGetDpiForMonitor m_GetDpiForMonitor = nullptr;
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using lpSetWindowCompositionAttribute =
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BOOL(WINAPI *)(HWND, WINDOWCOMPOSITIONATTRIBDATA *);
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lpSetWindowCompositionAttribute m_SetWindowCompositionAttribute = nullptr;
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};
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