forked from github_mirror/framelesshelper
113 lines
4.3 KiB
C++
113 lines
4.3 KiB
C++
/*
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* MIT License
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*
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* Copyright (C) 2020 by wangwenx190 (Yuhang Zhao)
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#pragma once
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#ifndef WIN32_LEAN_AND_MEAN
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#define WIN32_LEAN_AND_MEAN
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#endif
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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 fixedSize = FALSE, mouseTransparent = 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 maximumSize = {-1, -1}, minimumSize = {-1, -1};
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};
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using WINDOW = struct _WINDOW {
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HWND hWnd = nullptr;
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BOOL initialized = FALSE;
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WINDOWDATA windowData;
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};
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enum class SystemMetric { BorderWidth, BorderHeight, TitleBarHeight };
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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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// Use setFramelessWindows or addFramelessWindow if possible,
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// because this method will cause strange behavior, currently
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// don't know why.
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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,
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const 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
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// restore default behavior.
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// Note that it can only affect one specific window.
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// If you want to change these values globally, use setBorderWidth instead.
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static void setWindowData(HWND window, const WINDOWDATA *data);
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// You can modify the given window's data directly, it's the same with using
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// setWindowData.
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static WINDOWDATA *windowData(HWND window);
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// Change settings globally, not a specific window.
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static void setBorderWidth(int bw);
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static void setBorderHeight(int bh);
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static void setTitlebarHeight(int tbh);
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// System metric value of the given window (if the pointer is null,
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// return the system's standard value).
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static int getSystemMetric(HWND handle, SystemMetric metric,
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bool dpiAware = true);
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static void updateWindow(HWND handle, bool triggerFrameChange = true);
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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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static void initWin32Api();
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static void createUserData(HWND handle, const WINDOWDATA *data = nullptr);
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static void updateGlass(HWND handle);
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static qreal getPreferedNumber(qreal num);
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static UINT getDotsPerInchForWindow(HWND handle);
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static qreal getDevicePixelRatioForWindow(HWND handle);
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static int getSystemMetricsForWindow(HWND handle, int index);
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};
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