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// 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 QWINDOWSKEYMAPPER_H
#define QWINDOWSKEYMAPPER_H
#include <QtCore/qt_windows.h>
#include <QtCore/qlocale.h>
QT_BEGIN_NAMESPACE
class QKeyEvent;
class QWindow;
/*
\internal
A Windows KeyboardLayoutItem has 8 possible states:
1. Unmodified
2. Shift
3. Control
4. Control + Shift
5. Alt
6. Alt + Shift
7. Alt + Control
8. Alt + Control + Shift
*/
struct KeyboardLayoutItem {
uint dirty : 1;
uint exists : 1; // whether this item has been initialized (by updatePossibleKeyCodes)
quint8 deadkeys;
static const size_t NumQtKeys = 9;
quint32 qtKey[NumQtKeys]; // Can by any Qt::Key_<foo>, or unicode character
};
class QWindowsKeyMapper
{
Q_DISABLE_COPY_MOVE(QWindowsKeyMapper)
public:
explicit QWindowsKeyMapper();
~QWindowsKeyMapper();
void changeKeyboard();
void setUseRTLExtensions(bool e) { m_useRTLExtensions = e; }
bool useRTLExtensions() const { return m_useRTLExtensions; }
void setDetectAltGrModifier(bool a) { m_detectAltGrModifier = a; }
bool detectAltGrModifier() const { return m_detectAltGrModifier; }
bool translateKeyEvent(QWindow *widget, HWND hwnd, const MSG &msg, LRESULT *result);
QWindow *keyGrabber() const { return m_keyGrabber; }
void setKeyGrabber(QWindow *w) { m_keyGrabber = w; }
static Qt::KeyboardModifiers queryKeyboardModifiers();
QList<int> possibleKeys(const QKeyEvent *e) const;
private:
bool translateKeyEventInternal(QWindow *receiver, MSG msg, bool grab, LRESULT *lResult);
bool translateMultimediaKeyEventInternal(QWindow *receiver, const MSG &msg);
void updateKeyMap(const MSG &msg);
bool m_useRTLExtensions;
QLocale keyboardInputLocale;
Qt::LayoutDirection keyboardInputDirection;
void updatePossibleKeyCodes(unsigned char *kbdBuffer, quint32 scancode, quint32 vk_key);
void deleteLayouts();
QWindow *m_keyGrabber;
QChar m_lastHighSurrogate;
static const size_t NumKeyboardLayoutItems = 256;
KeyboardLayoutItem keyLayout[NumKeyboardLayoutItems];
bool m_detectAltGrModifier = false;
bool m_seenAltGr = false;
};
enum WindowsNativeModifiers {
ShiftLeft = 0x00000001,
ControlLeft = 0x00000002,
AltLeft = 0x00000004,
MetaLeft = 0x00000008,
ShiftRight = 0x00000010,
ControlRight = 0x00000020,
AltRight = 0x00000040,
MetaRight = 0x00000080,
CapsLock = 0x00000100,
NumLock = 0x00000200,
ScrollLock = 0x00000400,
ExtendedKey = 0x01000000,
// Convenience mappings
ShiftAny = 0x00000011,
ControlAny = 0x00000022,
AltAny = 0x00000044,
MetaAny = 0x00000088,
LockAny = 0x00000700
};
QT_END_NAMESPACE
#endif // QWINDOWSKEYMAPPER_H
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