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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#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>
struct IBindCtx;
struct _SHSTOCKICONINFO;
QT_BEGIN_NAMESPACE
Q_DECLARE_LOGGING_CATEGORY(lcQpaWindows)
Q_DECLARE_LOGGING_CATEGORY(lcQpaBackingStore)
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)
class QWindow;
class QPlatformScreen;
class QWindowsMenuBar;
class QWindowsScreenManager;
class QWindowsTabletSupport;
class QWindowsWindow;
class QWindowsMimeConverter;
struct QWindowCreationContext;
struct QWindowsContextPrivate;
class QPoint;
class QKeyEvent;
class QTouchDevice;
struct QWindowsUser32DLL
{
inline void init();
typedef BOOL (WINAPI *SetProcessDPIAware)();
typedef BOOL (WINAPI *AddClipboardFormatListener)(HWND);
typedef BOOL (WINAPI *RemoveClipboardFormatListener)(HWND);
typedef BOOL (WINAPI *GetDisplayAutoRotationPreferences)(DWORD *);
typedef BOOL (WINAPI *SetDisplayAutoRotationPreferences)(DWORD);
typedef BOOL (WINAPI *EnableNonClientDpiScaling)(HWND);
typedef int (WINAPI *GetWindowDpiAwarenessContext)(HWND);
typedef int (WINAPI *GetAwarenessFromDpiAwarenessContext)(int);
// Windows Vista onwards
SetProcessDPIAware setProcessDPIAware = 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;
EnableNonClientDpiScaling enableNonClientDpiScaling = nullptr;
GetWindowDpiAwarenessContext getWindowDpiAwarenessContext = nullptr;
GetAwarenessFromDpiAwarenessContext getAwarenessFromDpiAwarenessContext = 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,int *);
typedef HRESULT (WINAPI *SetProcessDpiAwareness)(int);
typedef HRESULT (WINAPI *GetDpiForMonitor)(HMONITOR,int,UINT *,UINT *);
GetProcessDpiAwareness getProcessDpiAwareness = nullptr;
SetProcessDpiAwareness setProcessDpiAwareness = nullptr;
GetDpiForMonitor getDpiForMonitor = nullptr;
};
class QWindowsContext
{
Q_DISABLE_COPY(QWindowsContext)
public:
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.
int defaultDPI() const;
QString registerWindowClass(const QWindow *w);
QString registerWindowClass(QString cname, WNDPROC proc,
unsigned style = 0, HBRUSH brush = 0,
bool icon = false);
HWND createDummyWindow(const QString &classNameIn,
const wchar_t *windowName,
WNDPROC wndProc = 0, DWORD style = WS_OVERLAPPED);
HDC displayContext() const;
int screenDepth() const;
static QWindowsContext *instance();
static QString windowsErrorMessage(unsigned long errorCode);
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;
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;
void setTabletAbsoluteRange(int a);
void setProcessDpiAwareness(QtWindows::ProcessDpiAwareness dpiAwareness);
static int processDpiAwareness();
// Returns a combination of SystemInfoFlags
unsigned systemInfo() const;
bool useRTLExtensions() const;
QList<int> possibleKeys(const QKeyEvent *e) const;
QWindowsMimeConverter &mimeConverter() const;
QWindowsScreenManager &screenManager();
QWindowsTabletSupport *tabletSupport() const;
static QWindowsUser32DLL user32dll;
static QWindowsShcoreDLL shcoredll;
static QByteArray comErrorString(HRESULT hr);
bool asyncExpose() const;
void setAsyncExpose(bool value);
static DWORD readAdvancedExplorerSettings(const wchar_t *subKey, DWORD defaultValue);
QTouchDevice *touchDevice() const;
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 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
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