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qt6windows7/qtbase/src/plugins/platforms/windows/qwindowscontext.h
2024-11-18 11:31:57 +01:00

268 lines
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C++

// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QWINDOWSCONTEXT_H
#define QWINDOWSCONTEXT_H
#include "qtwindowsglobal.h"
#include <QtCore/qt_windows.h>
#include <QtCore/qscopedpointer.h>
#include <QtCore/qsharedpointer.h>
#include <QtCore/qloggingcategory.h>
#define STRICT_TYPED_ITEMIDS
#include <shlobj.h>
#include <shlwapi.h>
#include <shellscalingapi.h>
QT_BEGIN_NAMESPACE
Q_DECLARE_LOGGING_CATEGORY(lcQpaWindow)
Q_DECLARE_LOGGING_CATEGORY(lcQpaEvents)
Q_DECLARE_LOGGING_CATEGORY(lcQpaGl)
Q_DECLARE_LOGGING_CATEGORY(lcQpaMime)
Q_DECLARE_LOGGING_CATEGORY(lcQpaInputMethods)
Q_DECLARE_LOGGING_CATEGORY(lcQpaDialogs)
Q_DECLARE_LOGGING_CATEGORY(lcQpaMenus)
Q_DECLARE_LOGGING_CATEGORY(lcQpaTablet)
Q_DECLARE_LOGGING_CATEGORY(lcQpaAccessibility)
Q_DECLARE_LOGGING_CATEGORY(lcQpaUiAutomation)
Q_DECLARE_LOGGING_CATEGORY(lcQpaTrayIcon)
Q_DECLARE_LOGGING_CATEGORY(lcQpaScreen)
class QWindow;
class QPlatformScreen;
class QPlatformWindow;
class QPlatformKeyMapper;
class QWindowsMenuBar;
class QWindowsScreenManager;
class QWindowsTabletSupport;
class QWindowsWindow;
class QWindowsMimeRegistry;
struct QWindowCreationContext;
struct QWindowsContextPrivate;
class QPoint;
class QKeyEvent;
class QPointingDevice;
struct QWindowsUser32DLL
{
inline void init();
inline bool supportsPointerApi();
typedef BOOL (WINAPI *EnableMouseInPointer)(BOOL);
typedef BOOL (WINAPI *GetPointerType)(UINT32, PVOID);
typedef BOOL (WINAPI *GetPointerInfo)(UINT32, PVOID);
typedef BOOL (WINAPI *GetPointerDeviceRects)(HANDLE, RECT *, RECT *);
typedef BOOL (WINAPI *GetPointerTouchInfo)(UINT32, PVOID);
typedef BOOL (WINAPI *GetPointerFrameTouchInfo)(UINT32, UINT32 *, PVOID);
typedef BOOL (WINAPI *GetPointerFrameTouchInfoHistory)(UINT32, UINT32 *, UINT32 *, PVOID);
typedef BOOL (WINAPI *GetPointerPenInfo)(UINT32, PVOID);
typedef BOOL (WINAPI *GetPointerPenInfoHistory)(UINT32, UINT32 *, PVOID);
typedef BOOL (WINAPI *SkipPointerFrameMessages)(UINT32);
typedef BOOL (WINAPI *SetProcessDPIAware)();
typedef BOOL (WINAPI *SetProcessDpiAwarenessContext)(HANDLE);
typedef BOOL (WINAPI *AddClipboardFormatListener)(HWND);
typedef BOOL (WINAPI *RemoveClipboardFormatListener)(HWND);
typedef BOOL (WINAPI *GetDisplayAutoRotationPreferences)(DWORD *);
typedef BOOL (WINAPI *SetDisplayAutoRotationPreferences)(DWORD);
typedef BOOL (WINAPI *AdjustWindowRectExForDpi)(LPRECT,DWORD,BOOL,DWORD,UINT);
typedef BOOL (WINAPI *EnableNonClientDpiScaling)(HWND);
typedef DPI_AWARENESS_CONTEXT (WINAPI *GetWindowDpiAwarenessContext)(HWND);
typedef DPI_AWARENESS (WINAPI *GetAwarenessFromDpiAwarenessContext)(int);
typedef BOOL (WINAPI *SystemParametersInfoForDpi)(UINT, UINT, PVOID, UINT, UINT);
typedef int (WINAPI *GetDpiForWindow)(HWND);
typedef BOOL (WINAPI *GetSystemMetricsForDpi)(INT, UINT);
typedef BOOL (WINAPI *AreDpiAwarenessContextsEqual)(DPI_AWARENESS_CONTEXT, DPI_AWARENESS_CONTEXT);
typedef DPI_AWARENESS_CONTEXT (WINAPI *GetThreadDpiAwarenessContext)();
typedef BOOL (WINAPI *IsValidDpiAwarenessContext)(DPI_AWARENESS_CONTEXT);
// Windows pointer functions (Windows 8 or later).
EnableMouseInPointer enableMouseInPointer = nullptr;
GetPointerType getPointerType = nullptr;
GetPointerInfo getPointerInfo = nullptr;
GetPointerDeviceRects getPointerDeviceRects = nullptr;
GetPointerTouchInfo getPointerTouchInfo = nullptr;
GetPointerFrameTouchInfo getPointerFrameTouchInfo = nullptr;
GetPointerFrameTouchInfoHistory getPointerFrameTouchInfoHistory = nullptr;
GetPointerPenInfo getPointerPenInfo = nullptr;
GetPointerPenInfoHistory getPointerPenInfoHistory = nullptr;
SkipPointerFrameMessages skipPointerFrameMessages = nullptr;
// Windows Vista onwards
SetProcessDPIAware setProcessDPIAware = nullptr;
// Windows 10 version 1607 onwards
GetDpiForWindow getDpiForWindow = nullptr;
GetThreadDpiAwarenessContext getThreadDpiAwarenessContext = nullptr;
IsValidDpiAwarenessContext isValidDpiAwarenessContext = nullptr;
// Windows 10 version 1703 onwards
SetProcessDpiAwarenessContext setProcessDpiAwarenessContext = nullptr;
AreDpiAwarenessContextsEqual areDpiAwarenessContextsEqual = nullptr;
// Clipboard listeners are present on Windows Vista onwards
// but missing in MinGW 4.9 stub libs. Can be removed in MinGW 5.
AddClipboardFormatListener addClipboardFormatListener = nullptr;
RemoveClipboardFormatListener removeClipboardFormatListener = nullptr;
// Rotation API
GetDisplayAutoRotationPreferences getDisplayAutoRotationPreferences = nullptr;
SetDisplayAutoRotationPreferences setDisplayAutoRotationPreferences = nullptr;
AdjustWindowRectExForDpi adjustWindowRectExForDpi = nullptr;
EnableNonClientDpiScaling enableNonClientDpiScaling = nullptr;
GetWindowDpiAwarenessContext getWindowDpiAwarenessContext = nullptr;
GetAwarenessFromDpiAwarenessContext getAwarenessFromDpiAwarenessContext = nullptr;
SystemParametersInfoForDpi systemParametersInfoForDpi = nullptr;
GetSystemMetricsForDpi getSystemMetricsForDpi = nullptr;
};
// Shell scaling library (Windows 8.1 onwards)
struct QWindowsShcoreDLL
{
void init();
inline bool isValid() const { return getProcessDpiAwareness && setProcessDpiAwareness && getDpiForMonitor; }
typedef HRESULT (WINAPI *GetProcessDpiAwareness)(HANDLE,PROCESS_DPI_AWARENESS *);
typedef HRESULT (WINAPI *SetProcessDpiAwareness)(PROCESS_DPI_AWARENESS);
typedef HRESULT (WINAPI *GetDpiForMonitor)(HMONITOR,int,UINT *,UINT *);
GetProcessDpiAwareness getProcessDpiAwareness = nullptr;
SetProcessDpiAwareness setProcessDpiAwareness = nullptr;
GetDpiForMonitor getDpiForMonitor = nullptr;
};
class QWindowsContext
{
Q_DISABLE_COPY_MOVE(QWindowsContext)
public:
using HandleBaseWindowHash = QHash<HWND, QWindowsWindow *>;
enum SystemInfoFlags
{
SI_RTL_Extensions = 0x1,
SI_SupportsTouch = 0x2
};
// Verbose flag set by environment variable QT_QPA_VERBOSE
static int verbose;
explicit QWindowsContext();
~QWindowsContext();
bool initTouch();
bool initTouch(unsigned integrationOptions); // For calls from QWindowsIntegration::QWindowsIntegration() only.
void registerTouchWindows();
bool initTablet();
bool disposeTablet();
bool initPowerNotificationHandler();
int defaultDPI() const;
static QString classNamePrefix();
QString registerWindowClass(const QWindow *w);
QString registerWindowClass(QString cname, WNDPROC proc,
unsigned style = 0, HBRUSH brush = nullptr,
bool icon = false);
HWND createDummyWindow(const QString &classNameIn,
const wchar_t *windowName,
WNDPROC wndProc = nullptr, DWORD style = WS_OVERLAPPED);
HDC displayContext() const;
int screenDepth() const;
static QWindowsContext *instance();
void addWindow(HWND, QWindowsWindow *w);
void removeWindow(HWND);
QWindowsWindow *findClosestPlatformWindow(HWND) const;
QWindowsWindow *findPlatformWindow(HWND) const;
QWindowsWindow *findPlatformWindow(const QWindowsMenuBar *mb) const;
QWindow *findWindow(HWND) const;
QWindowsWindow *findPlatformWindowAt(HWND parent, const QPoint &screenPoint,
unsigned cwex_flags) const;
static bool shouldHaveNonClientDpiScaling(const QWindow *window);
QWindow *windowUnderMouse() const;
void clearWindowUnderMouse();
inline bool windowsProc(HWND hwnd, UINT message,
QtWindows::WindowsEventType et,
WPARAM wParam, LPARAM lParam, LRESULT *result,
QWindowsWindow **platformWindowPtr);
QWindow *keyGrabber() const;
void setKeyGrabber(QWindow *hwnd);
QSharedPointer<QWindowCreationContext> setWindowCreationContext(const QSharedPointer<QWindowCreationContext> &ctx);
QSharedPointer<QWindowCreationContext> windowCreationContext() const;
static void setTabletAbsoluteRange(int a);
static bool setProcessDpiAwareness(QtWindows::DpiAwareness dpiAwareness);
static QtWindows::DpiAwareness processDpiAwareness();
static QtWindows::DpiAwareness windowDpiAwareness(HWND hwnd);
void setDetectAltGrModifier(bool a);
// Returns a combination of SystemInfoFlags
unsigned systemInfo() const;
bool useRTLExtensions() const;
QPlatformKeyMapper *keyMapper() const;
HandleBaseWindowHash &windows();
static bool isSessionLocked();
QWindowsMimeRegistry &mimeConverter() const;
QWindowsScreenManager &screenManager();
QWindowsTabletSupport *tabletSupport() const;
static QWindowsUser32DLL user32dll;
static QWindowsShcoreDLL shcoredll;
bool asyncExpose() const;
void setAsyncExpose(bool value);
static void forceNcCalcSize(HWND hwnd);
static bool systemParametersInfo(unsigned action, unsigned param, void *out, unsigned dpi = 0);
static bool systemParametersInfoForScreen(unsigned action, unsigned param, void *out,
const QPlatformScreen *screen = nullptr);
static bool systemParametersInfoForWindow(unsigned action, unsigned param, void *out,
const QPlatformWindow *win = nullptr);
static bool nonClientMetrics(NONCLIENTMETRICS *ncm, unsigned dpi = 0);
static bool nonClientMetricsForScreen(NONCLIENTMETRICS *ncm,
const QPlatformScreen *screen = nullptr);
static bool nonClientMetricsForWindow(NONCLIENTMETRICS *ncm,
const QPlatformWindow *win = nullptr);
static DWORD readAdvancedExplorerSettings(const wchar_t *subKey, DWORD defaultValue);
static bool filterNativeEvent(MSG *msg, LRESULT *result);
static bool filterNativeEvent(QWindow *window, MSG *msg, LRESULT *result);
private:
void handleFocusEvent(QtWindows::WindowsEventType et, QWindowsWindow *w);
#ifndef QT_NO_CONTEXTMENU
bool handleContextMenuEvent(QWindow *window, const MSG &msg);
#endif
void handleExitSizeMove(QWindow *window);
void unregisterWindowClasses();
QScopedPointer<QWindowsContextPrivate> d;
static QWindowsContext *m_instance;
};
extern "C" LRESULT QT_WIN_CALLBACK qWindowsWndProc(HWND, UINT, WPARAM, LPARAM);
QT_END_NAMESPACE
#endif // QWINDOWSCONTEXT_H