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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** 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 Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QWINDOWSKEYMAPPER_H
#define QWINDOWSKEYMAPPER_H
#include "qtwindows_additional.h"
#include <QtCore/QLocale>
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(QWindowsKeyMapper)
public:
explicit QWindowsKeyMapper();
~QWindowsKeyMapper();
void changeKeyboard();
void setUseRTLExtensions(bool e) { m_useRTLExtensions = e; }
bool useRTLExtensions() const { return m_useRTLExtensions; }
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, const MSG &msg, bool grab);
void updateKeyMap(const MSG &msg);
bool m_useRTLExtensions;
QLocale keyboardInputLocale;
Qt::LayoutDirection keyboardInputDirection;
void clearRecordedKeys();
void updatePossibleKeyCodes(unsigned char *kbdBuffer, quint32 scancode, quint32 vk_key);
bool isADeadKey(unsigned int vk_key, unsigned int modifiers);
void deleteLayouts();
QWindow *m_keyGrabber;
static const size_t NumKeyboardLayoutItems = 256;
KeyboardLayoutItem keyLayout[NumKeyboardLayoutItems];
};
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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