path: root/src/gui/kernel/qkeymapper_x11.cpp

/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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, Nokia gives you certain additional
** rights. These rights are described in the Nokia 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
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** $QT_END_LICENSE$
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****************************************************************************/

#include "qkeymapper_p.h"

#include "qdebug.h"
#include "qtextcodec.h"
#include "qwidget.h"

#include "qapplication_p.h"
#include "qevent_p.h"
#include "qt_x11_p.h"

#ifndef QT_NO_XKB
#  include <X11/XKBlib.h>
#endif

#define XK_MISCELLANY
#define XK_LATIN1
#define XK_KOREAN
#define XK_XKB_KEYS
#include <X11/keysymdef.h>

#include <ctype.h>

#ifdef QT_LINUXBASE
// LSB's IsKeypadKey define is wrong - see
// http://bugs.linuxbase.org/show_bug.cgi?id=2521
#undef IsKeypadKey
#define IsKeypadKey(keysym) \
      (((KeySym)(keysym) >= XK_KP_Space) && ((KeySym)(keysym) <= XK_KP_Equal))

#undef IsPrivateKeypadKey
#define IsPrivateKeypadKey(keysym) \
      (((KeySym)(keysym) >= 0x11000000) && ((KeySym)(keysym) <= 0x1100FFFF))
#endif

QT_BEGIN_NAMESPACE

#ifndef QT_NO_XKB

// bring in the auto-generated xkbLayoutData
#include "qkeymapper_x11_p.cpp"

QLocale q_getKeyboardLocale(const QByteArray &layoutName, const QByteArray &variantName)
{
    int i = 0;
    while (xkbLayoutData[i].layout != 0) {
        if (layoutName == xkbLayoutData[i].layout && variantName == xkbLayoutData[i].variant)
            return QLocale(xkbLayoutData[i].language, xkbLayoutData[i].country);
        ++i;
    }
    return QLocale::c();
}
#endif // QT_NO_XKB

// from qapplication_x11.cpp
extern uchar qt_alt_mask;
extern uchar qt_meta_mask;
extern uchar qt_super_mask;
extern uchar qt_hyper_mask;
extern uchar qt_mode_switch_mask;
uchar qt_num_lock_mask = 0;
extern bool qt_sendSpontaneousEvent(QObject*, QEvent*);

// ### we should really resolve conflicts with other masks by
// ### decomposing the Qt::KeyboardModifers in possibleKeys()
#define SETMASK(sym, mask)                                              \
    do {                                                                \
        if (qt_alt_mask == 0                                            \
            && qt_meta_mask != mask                                     \
            && qt_super_mask != mask                                    \
            && qt_hyper_mask != mask                                    \
            && (sym == XK_Alt_L || sym == XK_Alt_R)) {                  \
            qt_alt_mask = mask;                                         \
        }                                                               \
        if (qt_meta_mask == 0                                           \
            && qt_alt_mask != mask                                      \
            && qt_super_mask != mask                                    \
            && qt_hyper_mask != mask                                    \
            && (sym == XK_Meta_L || sym == XK_Meta_R)) {                \
            qt_meta_mask = mask;                                        \
        }                                                               \
        if (qt_super_mask == 0                                          \
            && qt_alt_mask != mask                                      \
            && qt_meta_mask != mask                                     \
            && qt_hyper_mask != mask                                    \
            && (sym == XK_Super_L || sym == XK_Super_R)) {              \
            qt_super_mask = mask;                                       \
        }                                                               \
        if (qt_hyper_mask == 0                                          \
            && qt_alt_mask != mask                                      \
            && qt_meta_mask != mask                                     \
            && qt_super_mask != mask                                    \
            && (sym == XK_Hyper_L || sym == XK_Hyper_R)) {              \
            qt_hyper_mask = mask;                                       \
        }                                                               \
        if (qt_mode_switch_mask == 0                                    \
            && qt_alt_mask != mask                                      \
            && qt_meta_mask != mask                                     \
            && qt_super_mask != mask                                    \
            && qt_hyper_mask != mask                                    \
            && sym == XK_Mode_switch) {                                 \
            qt_mode_switch_mask = mask;                                 \
        }                                                               \
        if (qt_num_lock_mask == 0                                       \
            && sym == XK_Num_Lock) {                                    \
            qt_num_lock_mask = mask;                                    \
        }                                                               \
    } while(false)

// qt_XTranslateKey() is based on _XTranslateKey() taken from:

/* $Xorg: KeyBind.c,v 1.4 2001/02/09 02:03:34 xorgcvs Exp $ */

/*

Copyright 1985, 1987, 1998  The Open Group

Permission to use, copy, modify, distribute, and sell this software and its
documentation for any purpose is hereby granted without fee, provided that
the above copyright notice appear in all copies and that both that
copyright notice and this permission notice appear in supporting
documentation.

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Except as contained in this notice, the name of The Open Group shall not be
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from The Open Group.

*/
static int
qt_XTranslateKey(register QXCoreDesc *dpy,
                 KeyCode keycode,
                 register unsigned int modifiers,
                 unsigned int *modifiers_return,
                 KeySym *keysym_return)
{
    int per;
    register KeySym *syms;
    KeySym sym, lsym, usym;

    if (! dpy->keysyms)
	return 0;
    *modifiers_return = ((ShiftMask|LockMask)
			 | dpy->mode_switch | dpy->num_lock);
    if (((int)keycode < dpy->min_keycode) || ((int)keycode > dpy->max_keycode))
    {
	*keysym_return = NoSymbol;
	return 1;
    }
    per = dpy->keysyms_per_keycode;
    syms = &dpy->keysyms[(keycode - dpy->min_keycode) * per];
    while ((per > 2) && (syms[per - 1] == NoSymbol))
	per--;
    if ((per > 2) && (modifiers & dpy->mode_switch)) {
	syms += 2;
	per -= 2;
    }
    if ((modifiers & dpy->num_lock) &&
	(per > 1 && (IsKeypadKey(syms[1]) || IsPrivateKeypadKey(syms[1])))) {
	if ((modifiers & ShiftMask) ||
	    ((modifiers & LockMask) && (dpy->lock_meaning == XK_Shift_Lock)))
	    *keysym_return = syms[0];
	else
	    *keysym_return = syms[1];
    } else if (!(modifiers & ShiftMask) &&
	(!(modifiers & LockMask) || (dpy->lock_meaning == NoSymbol))) {
	if ((per == 1) || (syms[1] == NoSymbol))
	    XConvertCase(syms[0], keysym_return, &usym);
	else
	    *keysym_return = syms[0];
    } else if (!(modifiers & LockMask) ||
	       (dpy->lock_meaning != XK_Caps_Lock)) {
	if ((per == 1) || ((usym = syms[1]) == NoSymbol))
	    XConvertCase(syms[0], &lsym, &usym);
	*keysym_return = usym;
    } else {
	if ((per == 1) || ((sym = syms[1]) == NoSymbol))
	    sym = syms[0];
	XConvertCase(sym, &lsym, &usym);
	if (!(modifiers & ShiftMask) && (sym != syms[0]) &&
	    ((sym != usym) || (lsym == usym)))
	    XConvertCase(syms[0], &lsym, &usym);
	*keysym_return = usym;
    }
    if (*keysym_return == XK_VoidSymbol)
	*keysym_return = NoSymbol;
    return 1;
}




QKeyMapperPrivate::QKeyMapperPrivate()
    : keyboardInputDirection(Qt::LeftToRight), xkb_currentGroup(0)
{
    memset(&coreDesc, 0, sizeof(coreDesc));

#ifndef QT_NO_XKB
    if (X11->use_xkb) {
        // get the current group
        XkbStateRec xkbState;
        if (XkbGetState(X11->display, XkbUseCoreKbd, &xkbState) == Success)
            xkb_currentGroup = xkbState.group;
    }
#endif
}

QKeyMapperPrivate::~QKeyMapperPrivate()
{
    if (coreDesc.keysyms)
        XFree(coreDesc.keysyms);
}

QList<int> QKeyMapperPrivate::possibleKeys(QKeyEvent *event)
{
#ifndef QT_NO_XKB
    if (X11->use_xkb)
        return possibleKeysXKB(event);
#endif
    return possibleKeysCore(event);
}

enum { MaxBits = sizeof(uint) * 8 };
static QString translateKeySym(KeySym keysym, uint xmodifiers,
                               int &code, Qt::KeyboardModifiers &modifiers,
                               QByteArray &chars, int &count);

QList<int> QKeyMapperPrivate::possibleKeysXKB(QKeyEvent *event)
{
#ifndef QT_NO_XKB
    const int xkeycode = event->nativeScanCode();
    const uint xmodifiers = event->nativeModifiers();

    // first, translate key only using lock modifiers (there are no Qt equivalents for these, so we must
    // always use them when determining the baseKeySym)
    KeySym baseKeySym;
    uint consumedModifiers;
    if (!XkbLookupKeySym(X11->display, xkeycode, (xmodifiers & (LockMask | qt_num_lock_mask)),
                         &consumedModifiers, &baseKeySym))
        return QList<int>();

    QList<int> result;

    // translate sym -> code
    Qt::KeyboardModifiers baseModifiers = 0;
    int baseCode = -1;
    QByteArray chars;
    int count = 0;
    QString text = translateKeySym(baseKeySym, xmodifiers, baseCode, baseModifiers, chars, count);
    if (baseCode == -1) {
        if (text.isEmpty())
            return QList<int>();
        baseCode = text.at(0).unicode();
    }

    if (baseCode && baseCode < 0xfffe)
        baseCode = QChar(baseCode).toUpper().unicode();
    result += (baseCode | baseModifiers);

    int pos1Bits[MaxBits];
    int num1Bits = 0;

    for (int i = 0; i < MaxBits; ++i) {
        if (consumedModifiers & (1 << i))
            pos1Bits[num1Bits++] = i;
    }

    const int numPerms = (1 << num1Bits);

    // translate the key again using each permutation of consumedModifiers
    for (int i = 1; i < numPerms; ++i) {
        uint val = 0;
        for (int j = 0; j < num1Bits; ++j) {
            if (i & (1 << j))
                val |= (1 << pos1Bits[j]);
        }

        if ((xmodifiers & val) != val)
            continue;

        KeySym sym;
        uint mods;
        if (!XkbLookupKeySym(X11->display, xkeycode, val, &mods, &sym))
            continue;

        // translate sym -> code
        Qt::KeyboardModifiers modifiers = 0;
        int code = -1;
        chars.clear();
        count = 0;
        // mask out the modifiers needed to translate keycode
        text = translateKeySym(sym, xmodifiers & ~val, code, modifiers, chars, count);
        if (code == -1) {
            if (text.isEmpty())
                continue;
            code = text.at(0).unicode();
        }

        if (code && code < 0xfffe)
            code = QChar(code).toUpper().unicode();

        if (code == Qt::Key_Tab && (baseModifiers & Qt::ShiftModifier)) {
            // map shift+tab to shift+backtab
            code = Qt::Key_Backtab;
            text = QString();
        }

        if (code == baseCode)
            continue;

        result += (code | modifiers);
    }

#if 0
    qDebug() << "possibleKeysXKB()" << hex << result;
#endif
    return result;
#else
    Q_UNUSED(event);
    return QList<int>();
#endif // QT_NO_XKB
}

QList<int> QKeyMapperPrivate::possibleKeysCore(QKeyEvent *event)
{
    const int xkeycode = event->nativeScanCode();
    const uint xmodifiers = event->nativeModifiers();

    // first, translate key only using lock modifiers (there are no Qt equivalents for these, so we must
    // always use them when determining the baseKeySym)
    KeySym baseKeySym;
    uint consumedModifiers;
    if (!qt_XTranslateKey(&coreDesc, xkeycode, (xmodifiers & (LockMask | qt_num_lock_mask)),
                          &consumedModifiers, &baseKeySym))
        return QList<int>();

    QList<int> result;

    // translate sym -> code
    Qt::KeyboardModifiers baseModifiers = 0;
    int baseCode = -1;
    QByteArray chars;
    int count = 0;
    QString text = translateKeySym(baseKeySym, xmodifiers, baseCode, baseModifiers, chars, count);
    if (baseCode == -1) {
        if (text.isEmpty())
            return QList<int>();
        baseCode = text.at(0).unicode();
    }

    if (baseCode && baseCode < 0xfffe)
        baseCode = QChar(baseCode).toUpper().unicode();
    result += (baseCode | baseModifiers);

    int pos1Bits[MaxBits];
    int num1Bits = 0;

    for (int i = 0; i < MaxBits; ++i) {
        if (consumedModifiers & (1 << i))
            pos1Bits[num1Bits++] = i;
    }

    const int numPerms = (1 << num1Bits);

    // translate the key again using each permutation of consumedModifiers
    for (int i = 1; i < numPerms; ++i) {
        uint val = 0;
        for (int j = 0; j < num1Bits; ++j) {
            if (i & (1 << j))
                val |= (1 << pos1Bits[j]);
        }

        if ((xmodifiers & val) != val)
            continue;

        KeySym sym;
        uint mods;
        if (!qt_XTranslateKey(&coreDesc, xkeycode, val, &mods, &sym))
            continue;

        // translate sym -> code
        Qt::KeyboardModifiers modifiers = 0;
        int code = -1;
        chars.clear();
        count = 0;
        // mask out the modifiers needed to translate keycode
        text = translateKeySym(sym, xmodifiers & ~val, code, modifiers, chars, count);
        if (code == -1) {
            if (text.isEmpty())
                continue;
            code = text.at(0).unicode();
        }

        if (code && code < 0xfffe)
            code = QChar(code).toUpper().unicode();

        if (code == Qt::Key_Tab && (baseModifiers & Qt::ShiftModifier)) {
            // map shift+tab to shift+backtab
            code = Qt::Key_Backtab;
            text = QString();
        }

        if (code == baseCode)
            continue;

        result += (code | modifiers);
    }

#if 0
    qDebug() << "possibleKeysCore()" << hex << result;
#endif
    return result;
}

// for parsing the _XKB_RULES_NAMES property
enum {
    RulesFileIndex = 0,
    ModelIndex = 1,
    LayoutIndex = 2,
    VariantIndex = 3,
    OptionsIndex = 4
};

void QKeyMapperPrivate::clearMappings()
{
#ifndef QT_NO_XKB
    if (X11->use_xkb) {
        // try to determine the layout name and input direction by reading the _XKB_RULES_NAMES property off
        // the root window
        QByteArray layoutName;
        QByteArray variantName;

        Atom type = XNone;
        int format = 0;
        ulong nitems = 0;
        ulong bytesAfter = 0;
        uchar *data = 0;
        if (XGetWindowProperty(X11->display, RootWindow(X11->display, 0), ATOM(_XKB_RULES_NAMES), 0, 1024,
                               false, XA_STRING, &type, &format, &nitems, &bytesAfter, &data) == Success
            && type == XA_STRING && format == 8 && nitems > 2) {
            /*
              index 0 == rules file name
              index 1 == model name
              index 2 == layout name
              index 3 == variant name
              index 4 == options
            */
            char *names[5] = { 0, 0, 0, 0, 0 };
            char *p = reinterpret_cast<char *>(data), *end = p + nitems;
            int i = 0;
            do {
                names[i++] = p;
                p += qstrlen(p) + 1;
            } while (p < end);

            // the layout names and variants are saved in the _XKB_RULES_NAMES property as a comma separated list
            QList<QByteArray> layoutNames = QByteArray::fromRawData(names[2], qstrlen(names[2])).split(',');
            if (uint(xkb_currentGroup) < uint(layoutNames.count()))
                layoutName = layoutNames.at(xkb_currentGroup);
            QList<QByteArray> variantNames = QByteArray::fromRawData(names[3], qstrlen(names[3])).split(',');
            if (uint(xkb_currentGroup) < uint(variantNames.count()))
                variantName = variantNames.at(xkb_currentGroup);
        }

        // ### ???
        // if (keyboardLayoutName.isEmpty())
        //     qWarning("Qt: unable to determine keyboard layout, please talk to qt-bugs@trolltech.com"); ?

        keyboardInputLocale = q_getKeyboardLocale(layoutName, variantName);
        keyboardInputDirection = keyboardInputLocale.textDirection();

#if 0
        qDebug() << "keyboard input locale ="
                 << keyboardInputLocale.name()
                 << "direction ="
                 << keyboardInputDirection;
#endif
        if (data)
            XFree(data);
    } else
#endif // QT_NO_XKB
        {
            if (coreDesc.keysyms)
                XFree(coreDesc.keysyms);

            coreDesc.min_keycode = 8;
            coreDesc.max_keycode = 255;
            XDisplayKeycodes(X11->display, &coreDesc.min_keycode, &coreDesc.max_keycode);

            coreDesc.keysyms_per_keycode = 0;
            coreDesc.keysyms = XGetKeyboardMapping(X11->display,
                                                   coreDesc.min_keycode,
                                                   coreDesc.max_keycode - coreDesc.min_keycode + 1,
                                                   &coreDesc.keysyms_per_keycode);

#if 0
            qDebug() << "min_keycode =" << coreDesc.min_keycode;
            qDebug() << "max_keycode =" << coreDesc.max_keycode;
            qDebug() << "keysyms_per_keycode =" << coreDesc.keysyms_per_keycode;
            qDebug() << "keysyms =" << coreDesc.keysyms;
#endif

            // ### cannot get/guess the locale with the core protocol
            keyboardInputLocale = QLocale::c();
            // ### could examine group 0 for RTL keys
            keyboardInputDirection = Qt::LeftToRight;
        }

    qt_alt_mask = 0;
    qt_meta_mask = 0;
    qt_super_mask = 0;
    qt_hyper_mask = 0;
    qt_mode_switch_mask = 0;

    // look at the modifier mapping, and get the correct masks for alt, meta, super, hyper, and mode_switch
#ifndef QT_NO_XKB
    if (X11->use_xkb) {
        XkbDescPtr xkbDesc = XkbGetMap(X11->display, XkbAllClientInfoMask, XkbUseCoreKbd);
        for (int i = xkbDesc->min_key_code; i < xkbDesc->max_key_code; ++i) {
            const uint mask = xkbDesc->map->modmap ? xkbDesc->map->modmap[i] : 0;
            if (mask == 0) {
                // key is not bound to a modifier
                continue;
            }

            for (int j = 0; j < XkbKeyGroupsWidth(xkbDesc, i); ++j) {
                KeySym keySym = XkbKeySym(xkbDesc, i, j);
                if (keySym == NoSymbol)
                    continue;
                SETMASK(keySym, mask);
            }
        }
        XkbFreeKeyboard(xkbDesc, XkbAllComponentsMask, true);
    } else
#endif // QT_NO_XKB
        {
            coreDesc.lock_meaning = NoSymbol;

            XModifierKeymap *map = XGetModifierMapping(X11->display);

            if (map) {
                int i, maskIndex = 0, mapIndex = 0;
                for (maskIndex = 0; maskIndex < 8; maskIndex++) {
                    for (i = 0; i < map->max_keypermod; i++) {
                        if (map->modifiermap[mapIndex]) {
                            KeySym sym;
                            int x = 0;
                            do {
                                sym = XKeycodeToKeysym(X11->display, map->modifiermap[mapIndex], x++);
                            } while (sym == NoSymbol && x < coreDesc.keysyms_per_keycode);
                            const uchar mask = 1 << maskIndex;
                            SETMASK(sym, mask);
                        }
                        mapIndex++;
                    }
                }

                // determine the meaning of the Lock modifier
                for (i = 0; i < map->max_keypermod; ++i) {
                    for (int x = 0; x < coreDesc.keysyms_per_keycode; ++x) {
                        KeySym sym = XKeycodeToKeysym(X11->display, map->modifiermap[LockMapIndex], x);
                        if (sym == XK_Caps_Lock || sym == XK_ISO_Lock) {
                            coreDesc.lock_meaning = XK_Caps_Lock;
                            break;
                        } else if (sym == XK_Shift_Lock) {
                            coreDesc.lock_meaning = XK_Shift_Lock;
                        }
                    }
                }

                XFreeModifiermap(map);
            }

            // for qt_XTranslateKey()
            coreDesc.num_lock = qt_num_lock_mask;
            coreDesc.mode_switch = qt_mode_switch_mask;

#if 0
            qDebug() << "lock_meaning =" << coreDesc.lock_meaning;
            qDebug() << "num_lock =" << coreDesc.num_lock;
            qDebug() << "mode_switch =" << coreDesc.mode_switch;
#endif
        }

    // set default modifier masks if needed
    if( qt_alt_mask == 0 )
        qt_alt_mask = Mod1Mask;
    if( qt_meta_mask == 0 )
        qt_meta_mask = Mod4Mask;

    // if we don't have a meta key (or it's hidden behind alt), use super or hyper to generate
    // Qt::Key_Meta and Qt::MetaModifier, since most newer XFree86/Xorg installations map the Windows
    // key to Super
    if (qt_meta_mask == 0 || qt_meta_mask == qt_alt_mask) {
        // no meta keys... s,meta,super,
        qt_meta_mask = qt_super_mask;
        if (qt_meta_mask == 0 || qt_meta_mask == qt_alt_mask) {
            // no super keys either? guess we'll use hyper then
            qt_meta_mask = qt_hyper_mask;
        }
    }

#if 0
    qDebug() << "qt_alt_mask =" << hex << qt_alt_mask;
    qDebug() << "qt_meta_mask =" << hex << qt_meta_mask;
    qDebug() << "qt_super_mask =" << hex << qt_super_mask;
    qDebug() << "qt_hyper_mask =" << hex << qt_hyper_mask;
    qDebug() << "qt_mode_switch_mask =" << hex << qt_mode_switch_mask;
    qDebug() << "qt_num_lock_mask =" << hex << qt_num_lock_mask;
#endif
}

extern bool qt_sm_blockUserInput;

//
// Keyboard event translation
//

#ifndef XK_ISO_Left_Tab
#define XK_ISO_Left_Tab         0xFE20
#endif

#ifndef XK_dead_hook
#define XK_dead_hook            0xFE61
#endif

#ifndef XK_dead_horn
#define XK_dead_horn            0xFE62
#endif

#ifndef XK_Codeinput
#define XK_Codeinput            0xFF37
#endif

#ifndef XK_Kanji_Bangou
#define XK_Kanji_Bangou         0xFF37 /* same as codeinput */
#endif

// Fix old X libraries
#ifndef XK_KP_Home
#define XK_KP_Home              0xFF95
#endif
#ifndef XK_KP_Left
#define XK_KP_Left              0xFF96
#endif
#ifndef XK_KP_Up
#define XK_KP_Up                0xFF97
#endif
#ifndef XK_KP_Right
#define XK_KP_Right             0xFF98
#endif
#ifndef XK_KP_Down
#define XK_KP_Down              0xFF99
#endif
#ifndef XK_KP_Prior
#define XK_KP_Prior             0xFF9A
#endif
#ifndef XK_KP_Next
#define XK_KP_Next              0xFF9B
#endif
#ifndef XK_KP_End
#define XK_KP_End               0xFF9C
#endif
#ifndef XK_KP_Insert
#define XK_KP_Insert            0xFF9E
#endif
#ifndef XK_KP_Delete
#define XK_KP_Delete            0xFF9F
#endif

// the next lines are taken on 10/2009 from X.org (X11/XF86keysym.h), defining some special
// multimedia keys. They are included here as not every system has them.
#define XF86XK_MonBrightnessUp     0x1008FF02
#define XF86XK_MonBrightnessDown   0x1008FF03
#define XF86XK_KbdLightOnOff       0x1008FF04
#define XF86XK_KbdBrightnessUp     0x1008FF05
#define XF86XK_KbdBrightnessDown   0x1008FF06
#define XF86XK_Standby             0x1008FF10
#define XF86XK_AudioLowerVolume	   0x1008FF11
#define XF86XK_AudioMute           0x1008FF12
#define XF86XK_AudioRaiseVolume    0x1008FF13
#define XF86XK_AudioPlay           0x1008FF14
#define XF86XK_AudioStop           0x1008FF15
#define XF86XK_AudioPrev           0x1008FF16
#define XF86XK_AudioNext           0x1008FF17
#define XF86XK_HomePage            0x1008FF18
#define XF86XK_Mail                0x1008FF19
#define XF86XK_Start               0x1008FF1A
#define XF86XK_Search              0x1008FF1B
#define XF86XK_AudioRecord         0x1008FF1C
#define XF86XK_Calculator          0x1008FF1D
#define XF86XK_Memo                0x1008FF1E
#define XF86XK_ToDoList            0x1008FF1F
#define XF86XK_Calendar            0x1008FF20
#define XF86XK_PowerDown           0x1008FF21
#define XF86XK_ContrastAdjust      0x1008FF22
#define XF86XK_Back                0x1008FF26
#define XF86XK_Forward             0x1008FF27
#define XF86XK_Stop                0x1008FF28
#define XF86XK_Refresh             0x1008FF29
#define XF86XK_PowerOff            0x1008FF2A
#define XF86XK_WakeUp              0x1008FF2B
#define XF86XK_Eject               0x1008FF2C
#define XF86XK_ScreenSaver         0x1008FF2D
#define XF86XK_WWW                 0x1008FF2E
#define XF86XK_Sleep               0x1008FF2F
#define XF86XK_Favorites           0x1008FF30
#define XF86XK_AudioPause          0x1008FF31
#define XF86XK_AudioMedia          0x1008FF32
#define XF86XK_MyComputer          0x1008FF33
#define XF86XK_LightBulb           0x1008FF35
#define XF86XK_Shop                0x1008FF36
#define XF86XK_History             0x1008FF37
#define XF86XK_OpenURL             0x1008FF38
#define XF86XK_AddFavorite         0x1008FF39
#define XF86XK_HotLinks            0x1008FF3A
#define XF86XK_BrightnessAdjust    0x1008FF3B
#define XF86XK_Finance             0x1008FF3C
#define XF86XK_Community           0x1008FF3D
#define XF86XK_AudioRewind         0x1008FF3E
#define XF86XK_BackForward         0x1008FF3F
#define XF86XK_Launch0             0x1008FF40
#define XF86XK_Launch1             0x1008FF41
#define XF86XK_Launch2             0x1008FF42
#define XF86XK_Launch3             0x1008FF43
#define XF86XK_Launch4             0x1008FF44
#define XF86XK_Launch5             0x1008FF45
#define XF86XK_Launch6             0x1008FF46
#define XF86XK_Launch7             0x1008FF47
#define XF86XK_Launch8             0x1008FF48
#define XF86XK_Launch9             0x1008FF49
#define XF86XK_LaunchA             0x1008FF4A
#define XF86XK_LaunchB             0x1008FF4B
#define XF86XK_LaunchC             0x1008FF4C
#define XF86XK_LaunchD             0x1008FF4D
#define XF86XK_LaunchE             0x1008FF4E
#define XF86XK_LaunchF             0x1008FF4F
#define XF86XK_ApplicationLeft     0x1008FF50
#define XF86XK_ApplicationRight    0x1008FF51
#define XF86XK_Book                0x1008FF52
#define XF86XK_CD                  0x1008FF53
#define XF86XK_Calculater          0x1008FF54
#define XF86XK_Clear               0x1008FF55
#define XF86XK_ClearGrab           0x1008FE21
#define XF86XK_Close               0x1008FF56
#define XF86XK_Copy                0x1008FF57
#define XF86XK_Cut                 0x1008FF58
#define XF86XK_Display             0x1008FF59
#define XF86XK_DOS                 0x1008FF5A
#define XF86XK_Documents           0x1008FF5B
#define XF86XK_Excel               0x1008FF5C
#define XF86XK_Explorer            0x1008FF5D
#define XF86XK_Game                0x1008FF5E
#define XF86XK_Go                  0x1008FF5F
#define XF86XK_iTouch              0x1008FF60
#define XF86XK_LogOff              0x1008FF61
#define XF86XK_Market              0x1008FF62
#define XF86XK_Meeting             0x1008FF63
#define XF86XK_MenuKB              0x1008FF65
#define XF86XK_MenuPB              0x1008FF66
#define XF86XK_MySites             0x1008FF67
#define XF86XK_News                0x1008FF69
#define XF86XK_OfficeHome          0x1008FF6A
#define XF86XK_Option              0x1008FF6C
#define XF86XK_Paste               0x1008FF6D
#define XF86XK_Phone               0x1008FF6E
#define XF86XK_Reply               0x1008FF72
#define XF86XK_Reload              0x1008FF73
#define XF86XK_RotateWindows       0x1008FF74
#define XF86XK_RotationPB          0x1008FF75
#define XF86XK_RotationKB          0x1008FF76
#define XF86XK_Save                0x1008FF77
#define XF86XK_Send                0x1008FF7B
#define XF86XK_Spell               0x1008FF7C
#define XF86XK_SplitScreen         0x1008FF7D
#define XF86XK_Support             0x1008FF7E
#define XF86XK_TaskPane            0x1008FF7F
#define XF86XK_Terminal            0x1008FF80
#define XF86XK_Tools               0x1008FF81
#define XF86XK_Travel              0x1008FF82
#define XF86XK_Video               0x1008FF87
#define XF86XK_Word                0x1008FF89
#define XF86XK_Xfer                0x1008FF8A
#define XF86XK_ZoomIn              0x1008FF8B
#define XF86XK_ZoomOut             0x1008FF8C
#define XF86XK_Away                0x1008FF8D
#define XF86XK_Messenger           0x1008FF8E
#define XF86XK_WebCam              0x1008FF8F
#define XF86XK_MailForward         0x1008FF90
#define XF86XK_Pictures            0x1008FF91
#define XF86XK_Music               0x1008FF92
#define XF86XK_Battery             0x1008FF93
#define XF86XK_Bluetooth           0x1008FF94
#define XF86XK_WLAN                0x1008FF95
#define XF86XK_UWB                 0x1008FF96
#define XF86XK_AudioForward        0x1008FF97
#define XF86XK_AudioRepeat         0x1008FF98
#define XF86XK_AudioRandomPlay     0x1008FF99
#define XF86XK_Subtitle            0x1008FF9A
#define XF86XK_AudioCycleTrack     0x1008FF9B
#define XF86XK_Time                0x1008FF9F
#define XF86XK_Select              0x1008FFA0
#define XF86XK_View                0x1008FFA1
#define XF86XK_TopMenu             0x1008FFA2
#define XF86XK_Suspend             0x1008FFA7
#define XF86XK_Hibernate           0x1008FFA8


// end of XF86keysyms.h

// Special keys used by Qtopia, mapped into the X11 private keypad range.
#define QTOPIAXK_Select         0x11000601
#define QTOPIAXK_Yes            0x11000602
#define QTOPIAXK_No             0x11000603
#define QTOPIAXK_Cancel         0x11000604
#define QTOPIAXK_Printer        0x11000605
#define QTOPIAXK_Execute        0x11000606
#define QTOPIAXK_Sleep          0x11000607
#define QTOPIAXK_Play           0x11000608
#define QTOPIAXK_Zoom           0x11000609
#define QTOPIAXK_Context1       0x1100060A
#define QTOPIAXK_Context2       0x1100060B
#define QTOPIAXK_Context3       0x1100060C
#define QTOPIAXK_Context4       0x1100060D
#define QTOPIAXK_Call           0x1100060E
#define QTOPIAXK_Hangup         0x1100060F
#define QTOPIAXK_Flip           0x11000610

// keyboard mapping table
static const unsigned int KeyTbl[] = {

    // misc keys

    XK_Escape,                  Qt::Key_Escape,
    XK_Tab,                     Qt::Key_Tab,
    XK_ISO_Left_Tab,            Qt::Key_Backtab,
    XK_BackSpace,               Qt::Key_Backspace,
    XK_Return,                  Qt::Key_Return,
    XK_Insert,                  Qt::Key_Insert,
    XK_Delete,                  Qt::Key_Delete,
    XK_Clear,                   Qt::Key_Delete,
    XK_Pause,                   Qt::Key_Pause,
    XK_Print,                   Qt::Key_Print,
    0x1005FF60,                 Qt::Key_SysReq,         // hardcoded Sun SysReq
    0x1007ff00,                 Qt::Key_SysReq,         // hardcoded X386 SysReq

    // cursor movement

    XK_Home,                    Qt::Key_Home,
    XK_End,                     Qt::Key_End,
    XK_Left,                    Qt::Key_Left,
    XK_Up,                      Qt::Key_Up,
    XK_Right,                   Qt::Key_Right,
    XK_Down,                    Qt::Key_Down,
    XK_Prior,                   Qt::Key_PageUp,
    XK_Next,                    Qt::Key_PageDown,

    // modifiers

    XK_Shift_L,                 Qt::Key_Shift,
    XK_Shift_R,                 Qt::Key_Shift,
    XK_Shift_Lock,              Qt::Key_Shift,
    XK_Control_L,               Qt::Key_Control,
    XK_Control_R,               Qt::Key_Control,
    XK_Meta_L,                  Qt::Key_Meta,
    XK_Meta_R,                  Qt::Key_Meta,
    XK_Alt_L,                   Qt::Key_Alt,
    XK_Alt_R,                   Qt::Key_Alt,
    XK_Caps_Lock,               Qt::Key_CapsLock,
    XK_Num_Lock,                Qt::Key_NumLock,
    XK_Scroll_Lock,             Qt::Key_ScrollLock,
    XK_Super_L,                 Qt::Key_Super_L,
    XK_Super_R,                 Qt::Key_Super_R,
    XK_Menu,                    Qt::Key_Menu,
    XK_Hyper_L,                 Qt::Key_Hyper_L,
    XK_Hyper_R,                 Qt::Key_Hyper_R,
    XK_Help,                    Qt::Key_Help,
    0x1000FF74,                 Qt::Key_Backtab,        // hardcoded HP backtab
    0x1005FF10,                 Qt::Key_F11,            // hardcoded Sun F36 (labeled F11)
    0x1005FF11,                 Qt::Key_F12,            // hardcoded Sun F37 (labeled F12)

    // numeric and function keypad keys

    XK_KP_Space,                Qt::Key_Space,
    XK_KP_Tab,                  Qt::Key_Tab,
    XK_KP_Enter,                Qt::Key_Enter,
    //XK_KP_F1,                 Qt::Key_F1,
    //XK_KP_F2,                 Qt::Key_F2,
    //XK_KP_F3,                 Qt::Key_F3,
    //XK_KP_F4,                 Qt::Key_F4,
    XK_KP_Home,                 Qt::Key_Home,
    XK_KP_Left,                 Qt::Key_Left,
    XK_KP_Up,                   Qt::Key_Up,
    XK_KP_Right,                Qt::Key_Right,
    XK_KP_Down,                 Qt::Key_Down,
    XK_KP_Prior,                Qt::Key_PageUp,
    XK_KP_Next,                 Qt::Key_PageDown,
    XK_KP_End,                  Qt::Key_End,
    XK_KP_Begin,                Qt::Key_Clear,
    XK_KP_Insert,               Qt::Key_Insert,
    XK_KP_Delete,               Qt::Key_Delete,
    XK_KP_Equal,                Qt::Key_Equal,
    XK_KP_Multiply,             Qt::Key_Asterisk,
    XK_KP_Add,                  Qt::Key_Plus,
    XK_KP_Separator,            Qt::Key_Comma,
    XK_KP_Subtract,             Qt::Key_Minus,
    XK_KP_Decimal,              Qt::Key_Period,
    XK_KP_Divide,               Qt::Key_Slash,

    // International input method support keys

    // International & multi-key character composition
    XK_ISO_Level3_Shift,        Qt::Key_AltGr,
    XK_Multi_key,		Qt::Key_Multi_key,
    XK_Codeinput,		Qt::Key_Codeinput,
    XK_SingleCandidate,		Qt::Key_SingleCandidate,
    XK_MultipleCandidate,	Qt::Key_MultipleCandidate,
    XK_PreviousCandidate,	Qt::Key_PreviousCandidate,

    // Misc Functions
    XK_Mode_switch,		Qt::Key_Mode_switch,
    XK_script_switch,		Qt::Key_Mode_switch,

    // Japanese keyboard support
    XK_Kanji,			Qt::Key_Kanji,
    XK_Muhenkan,		Qt::Key_Muhenkan,
    //XK_Henkan_Mode,		Qt::Key_Henkan_Mode,
    XK_Henkan_Mode,		Qt::Key_Henkan,
    XK_Henkan,			Qt::Key_Henkan,
    XK_Romaji,			Qt::Key_Romaji,
    XK_Hiragana,		Qt::Key_Hiragana,
    XK_Katakana,		Qt::Key_Katakana,
    XK_Hiragana_Katakana,	Qt::Key_Hiragana_Katakana,
    XK_Zenkaku,			Qt::Key_Zenkaku,
    XK_Hankaku,			Qt::Key_Hankaku,
    XK_Zenkaku_Hankaku,		Qt::Key_Zenkaku_Hankaku,
    XK_Touroku,			Qt::Key_Touroku,
    XK_Massyo,			Qt::Key_Massyo,
    XK_Kana_Lock,		Qt::Key_Kana_Lock,
    XK_Kana_Shift,		Qt::Key_Kana_Shift,
    XK_Eisu_Shift,		Qt::Key_Eisu_Shift,
    XK_Eisu_toggle,		Qt::Key_Eisu_toggle,
    //XK_Kanji_Bangou,		Qt::Key_Kanji_Bangou,
    //XK_Zen_Koho,		Qt::Key_Zen_Koho,
    //XK_Mae_Koho,		Qt::Key_Mae_Koho,
    XK_Kanji_Bangou,		Qt::Key_Codeinput,
    XK_Zen_Koho,		Qt::Key_MultipleCandidate,
    XK_Mae_Koho,		Qt::Key_PreviousCandidate,

#ifdef XK_KOREAN
    // Korean keyboard support
    XK_Hangul,			Qt::Key_Hangul,
    XK_Hangul_Start,		Qt::Key_Hangul_Start,
    XK_Hangul_End,		Qt::Key_Hangul_End,
    XK_Hangul_Hanja,		Qt::Key_Hangul_Hanja,
    XK_Hangul_Jamo,		Qt::Key_Hangul_Jamo,
    XK_Hangul_Romaja,		Qt::Key_Hangul_Romaja,
    //XK_Hangul_Codeinput,	Qt::Key_Hangul_Codeinput,
    XK_Hangul_Codeinput,	Qt::Key_Codeinput,
    XK_Hangul_Jeonja,		Qt::Key_Hangul_Jeonja,
    XK_Hangul_Banja,		Qt::Key_Hangul_Banja,
    XK_Hangul_PreHanja,		Qt::Key_Hangul_PreHanja,
    XK_Hangul_PostHanja,	Qt::Key_Hangul_PostHanja,
    //XK_Hangul_SingleCandidate,Qt::Key_Hangul_SingleCandidate,
    //XK_Hangul_MultipleCandidate,Qt::Key_Hangul_MultipleCandidate,
    //XK_Hangul_PreviousCandidate,Qt::Key_Hangul_PreviousCandidate,
    XK_Hangul_SingleCandidate,	Qt::Key_SingleCandidate,
    XK_Hangul_MultipleCandidate,Qt::Key_MultipleCandidate,
    XK_Hangul_PreviousCandidate,Qt::Key_PreviousCandidate,
    XK_Hangul_Special,		Qt::Key_Hangul_Special,
    //XK_Hangul_switch,		Qt::Key_Hangul_switch,
    XK_Hangul_switch,		Qt::Key_Mode_switch,
#endif  // XK_KOREAN

    // dead keys
    XK_dead_grave,              Qt::Key_Dead_Grave,
    XK_dead_acute,              Qt::Key_Dead_Acute,
    XK_dead_circumflex,         Qt::Key_Dead_Circumflex,
    XK_dead_tilde,              Qt::Key_Dead_Tilde,
    XK_dead_macron,             Qt::Key_Dead_Macron,
    XK_dead_breve,              Qt::Key_Dead_Breve,
    XK_dead_abovedot,           Qt::Key_Dead_Abovedot,
    XK_dead_diaeresis,          Qt::Key_Dead_Diaeresis,
    XK_dead_abovering,          Qt::Key_Dead_Abovering,
    XK_dead_doubleacute,        Qt::Key_Dead_Doubleacute,
    XK_dead_caron,              Qt::Key_Dead_Caron,
    XK_dead_cedilla,            Qt::Key_Dead_Cedilla,
    XK_dead_ogonek,             Qt::Key_Dead_Ogonek,
    XK_dead_iota,               Qt::Key_Dead_Iota,
    XK_dead_voiced_sound,       Qt::Key_Dead_Voiced_Sound,
    XK_dead_semivoiced_sound,   Qt::Key_Dead_Semivoiced_Sound,
    XK_dead_belowdot,           Qt::Key_Dead_Belowdot,
    XK_dead_hook,               Qt::Key_Dead_Hook,
    XK_dead_horn,               Qt::Key_Dead_Horn,

    // Special keys from X.org - This include multimedia keys,
	// wireless/bluetooth/uwb keys, special launcher keys, etc.
    XF86XK_Back,                Qt::Key_Back,
    XF86XK_Forward,             Qt::Key_Forward,
    XF86XK_Stop,                Qt::Key_Stop,
    XF86XK_Refresh,             Qt::Key_Refresh,
    XF86XK_Favorites,           Qt::Key_Favorites,
    XF86XK_AudioMedia,          Qt::Key_LaunchMedia,
    XF86XK_OpenURL,             Qt::Key_OpenUrl,
    XF86XK_HomePage,            Qt::Key_HomePage,
    XF86XK_Search,              Qt::Key_Search,
    XF86XK_AudioLowerVolume,    Qt::Key_VolumeDown,
    XF86XK_AudioMute,           Qt::Key_VolumeMute,
    XF86XK_AudioRaiseVolume,    Qt::Key_VolumeUp,
    XF86XK_AudioPlay,           Qt::Key_MediaPlay,
    XF86XK_AudioStop,           Qt::Key_MediaStop,
    XF86XK_AudioPrev,           Qt::Key_MediaPrevious,
    XF86XK_AudioNext,           Qt::Key_MediaNext,
    XF86XK_AudioRecord,         Qt::Key_MediaRecord,
    XF86XK_Mail,                Qt::Key_LaunchMail,
    XF86XK_MyComputer,          Qt::Key_Launch0,  // ### Qt 5: remap properly
    XF86XK_Calculator,          Qt::Key_Launch1,
    XF86XK_Memo,                Qt::Key_Memo,
    XF86XK_ToDoList,            Qt::Key_ToDoList,
    XF86XK_Calendar,            Qt::Key_Calendar,
    XF86XK_PowerDown,           Qt::Key_PowerDown,
    XF86XK_ContrastAdjust,      Qt::Key_ContrastAdjust,
    XF86XK_Standby,             Qt::Key_Standby,
    XF86XK_MonBrightnessUp,     Qt::Key_MonBrightnessUp,
    XF86XK_MonBrightnessDown,   Qt::Key_MonBrightnessDown,
    XF86XK_KbdLightOnOff,       Qt::Key_KeyboardLightOnOff,
    XF86XK_KbdBrightnessUp,     Qt::Key_KeyboardBrightnessUp,
    XF86XK_KbdBrightnessDown,   Qt::Key_KeyboardBrightnessDown,
    XF86XK_PowerOff,            Qt::Key_PowerOff,
    XF86XK_WakeUp,              Qt::Key_WakeUp,
    XF86XK_Eject,               Qt::Key_Eject,
    XF86XK_ScreenSaver,         Qt::Key_ScreenSaver,
    XF86XK_WWW,                 Qt::Key_WWW,
    XF86XK_Sleep,               Qt::Key_Sleep,
    XF86XK_LightBulb,           Qt::Key_LightBulb,
    XF86XK_Shop,                Qt::Key_Shop,
    XF86XK_History,             Qt::Key_History,
    XF86XK_AddFavorite,         Qt::Key_AddFavorite,
    XF86XK_HotLinks,            Qt::Key_HotLinks,
    XF86XK_BrightnessAdjust,    Qt::Key_BrightnessAdjust,
    XF86XK_Finance,             Qt::Key_Finance,
    XF86XK_Community,           Qt::Key_Community,
    XF86XK_AudioRewind,         Qt::Key_AudioRewind,
    XF86XK_BackForward,         Qt::Key_BackForward,
    XF86XK_ApplicationLeft,     Qt::Key_ApplicationLeft,
    XF86XK_ApplicationRight,    Qt::Key_ApplicationRight,
    XF86XK_Book,                Qt::Key_Book,
    XF86XK_CD,                  Qt::Key_CD,
    XF86XK_Calculater,          Qt::Key_Calculator,
    XF86XK_Clear,               Qt::Key_Clear,
    XF86XK_ClearGrab,           Qt::Key_ClearGrab,
    XF86XK_Close,               Qt::Key_Close,
    XF86XK_Copy,                Qt::Key_Copy,
    XF86XK_Cut,                 Qt::Key_Cut,
    XF86XK_Display,             Qt::Key_Display,
    XF86XK_DOS,                 Qt::Key_DOS,
    XF86XK_Documents,           Qt::Key_Documents,
    XF86XK_Excel,               Qt::Key_Excel,
    XF86XK_Explorer,            Qt::Key_Explorer,
    XF86XK_Game,                Qt::Key_Game,
    XF86XK_Go,                  Qt::Key_Go,
    XF86XK_iTouch,              Qt::Key_iTouch,
    XF86XK_LogOff,              Qt::Key_LogOff,
    XF86XK_Market,              Qt::Key_Market,
    XF86XK_Meeting,             Qt::Key_Meeting,
    XF86XK_MenuKB,              Qt::Key_MenuKB,
    XF86XK_MenuPB,              Qt::Key_MenuPB,
    XF86XK_MySites,             Qt::Key_MySites,
    XF86XK_News,                Qt::Key_News,
    XF86XK_OfficeHome,          Qt::Key_OfficeHome,
    XF86XK_Option,              Qt::Key_Option,
    XF86XK_Paste,               Qt::Key_Paste,
    XF86XK_Phone,               Qt::Key_Phone,
    XF86XK_Reply,               Qt::Key_Reply,
    XF86XK_Reload,              Qt::Key_Reload,
    XF86XK_RotateWindows,       Qt::Key_RotateWindows,
    XF86XK_RotationPB,          Qt::Key_RotationPB,
    XF86XK_RotationKB,          Qt::Key_RotationKB,
    XF86XK_Save,                Qt::Key_Save,
    XF86XK_Send,                Qt::Key_Send,
    XF86XK_Spell,               Qt::Key_Spell,
    XF86XK_SplitScreen,         Qt::Key_SplitScreen,
    XF86XK_Support,             Qt::Key_Support,
    XF86XK_TaskPane,            Qt::Key_TaskPane,
    XF86XK_Terminal,            Qt::Key_Terminal,
    XF86XK_Tools,               Qt::Key_Tools,
    XF86XK_Travel,              Qt::Key_Travel,
    XF86XK_Video,               Qt::Key_Video,
    XF86XK_Word,                Qt::Key_Word,
    XF86XK_Xfer,                Qt::Key_Xfer,
    XF86XK_ZoomIn,              Qt::Key_ZoomIn,
    XF86XK_ZoomOut,             Qt::Key_ZoomOut,
    XF86XK_Away,                Qt::Key_Away,
    XF86XK_Messenger,           Qt::Key_Messenger,
    XF86XK_WebCam,              Qt::Key_WebCam,
    XF86XK_MailForward,         Qt::Key_MailForward,
    XF86XK_Pictures,            Qt::Key_Pictures,
    XF86XK_Music,               Qt::Key_Music,
    XF86XK_Battery,             Qt::Key_Battery,
    XF86XK_Bluetooth,           Qt::Key_Bluetooth,
    XF86XK_WLAN,                Qt::Key_WLAN,
    XF86XK_UWB,                 Qt::Key_UWB,
    XF86XK_AudioForward,        Qt::Key_AudioForward,
    XF86XK_AudioRepeat,         Qt::Key_AudioRepeat,
    XF86XK_AudioRandomPlay,     Qt::Key_AudioRandomPlay,
    XF86XK_Subtitle,            Qt::Key_Subtitle,
    XF86XK_AudioCycleTrack,     Qt::Key_AudioCycleTrack,
    XF86XK_Time,                Qt::Key_Time,
    XF86XK_Select,              Qt::Key_Select,
    XF86XK_View,                Qt::Key_View,
    XF86XK_TopMenu,             Qt::Key_TopMenu,
    XF86XK_Bluetooth,           Qt::Key_Bluetooth,
    XF86XK_Suspend,             Qt::Key_Suspend,
    XF86XK_Hibernate,           Qt::Key_Hibernate,
    XF86XK_Launch0,             Qt::Key_Launch2, // ### Qt 5: remap properly
    XF86XK_Launch1,             Qt::Key_Launch3,
    XF86XK_Launch2,             Qt::Key_Launch4,
    XF86XK_Launch3,             Qt::Key_Launch5,
    XF86XK_Launch4,             Qt::Key_Launch6,
    XF86XK_Launch5,             Qt::Key_Launch7,
    XF86XK_Launch6,             Qt::Key_Launch8,
    XF86XK_Launch7,             Qt::Key_Launch9,
    XF86XK_Launch8,             Qt::Key_LaunchA,
    XF86XK_Launch9,             Qt::Key_LaunchB,
    XF86XK_LaunchA,             Qt::Key_LaunchC,
    XF86XK_LaunchB,             Qt::Key_LaunchD,
    XF86XK_LaunchC,             Qt::Key_LaunchE,
    XF86XK_LaunchD,             Qt::Key_LaunchF,
    XF86XK_LaunchE,             Qt::Key_LaunchG,
    XF86XK_LaunchF,             Qt::Key_LaunchH,

    // Qtopia keys
    QTOPIAXK_Select,            Qt::Key_Select,
    QTOPIAXK_Yes,               Qt::Key_Yes,
    QTOPIAXK_No,                Qt::Key_No,
    QTOPIAXK_Cancel,            Qt::Key_Cancel,
    QTOPIAXK_Printer,           Qt::Key_Printer,
    QTOPIAXK_Execute,           Qt::Key_Execute,
    QTOPIAXK_Sleep,             Qt::Key_Sleep,
    QTOPIAXK_Play,              Qt::Key_Play,
    QTOPIAXK_Zoom,              Qt::Key_Zoom,
    QTOPIAXK_Context1,          Qt::Key_Context1,
    QTOPIAXK_Context2,          Qt::Key_Context2,
    QTOPIAXK_Context3,          Qt::Key_Context3,
    QTOPIAXK_Context4,          Qt::Key_Context4,
    QTOPIAXK_Call,              Qt::Key_Call,
    QTOPIAXK_Hangup,            Qt::Key_Hangup,
    QTOPIAXK_Flip,              Qt::Key_Flip,

    0,                          0
};

static int translateKeySym(uint key)
{
    int code = -1;
    int i = 0;                                // any other keys
    while (KeyTbl[i]) {
        if (key == KeyTbl[i]) {
            code = (int)KeyTbl[i+1];
            break;
        }
        i += 2;
    }
    if (qt_meta_mask) {
        // translate Super/Hyper keys to Meta if we're using them as the MetaModifier
        if (qt_meta_mask == qt_super_mask && (code == Qt::Key_Super_L || code == Qt::Key_Super_R)) {
            code = Qt::Key_Meta;
        } else if (qt_meta_mask == qt_hyper_mask && (code == Qt::Key_Hyper_L || code == Qt::Key_Hyper_R)) {
            code = Qt::Key_Meta;
        }
    }
    return code;
}

#if !defined(QT_NO_XIM)
static const unsigned short katakanaKeysymsToUnicode[] = {
    0x0000, 0x3002, 0x300C, 0x300D, 0x3001, 0x30FB, 0x30F2, 0x30A1,
    0x30A3, 0x30A5, 0x30A7, 0x30A9, 0x30E3, 0x30E5, 0x30E7, 0x30C3,
    0x30FC, 0x30A2, 0x30A4, 0x30A6, 0x30A8, 0x30AA, 0x30AB, 0x30AD,
    0x30AF, 0x30B1, 0x30B3, 0x30B5, 0x30B7, 0x30B9, 0x30BB, 0x30BD,
    0x30BF, 0x30C1, 0x30C4, 0x30C6, 0x30C8, 0x30CA, 0x30CB, 0x30CC,
    0x30CD, 0x30CE, 0x30CF, 0x30D2, 0x30D5, 0x30D8, 0x30DB, 0x30DE,
    0x30DF, 0x30E0, 0x30E1, 0x30E2, 0x30E4, 0x30E6, 0x30E8, 0x30E9,
    0x30EA, 0x30EB, 0x30EC, 0x30ED, 0x30EF, 0x30F3, 0x309B, 0x309C
};

static const unsigned short cyrillicKeysymsToUnicode[] = {
    0x0000, 0x0452, 0x0453, 0x0451, 0x0454, 0x0455, 0x0456, 0x0457,
    0x0458, 0x0459, 0x045a, 0x045b, 0x045c, 0x0000, 0x045e, 0x045f,
    0x2116, 0x0402, 0x0403, 0x0401, 0x0404, 0x0405, 0x0406, 0x0407,
    0x0408, 0x0409, 0x040a, 0x040b, 0x040c, 0x0000, 0x040e, 0x040f,
    0x044e, 0x0430, 0x0431, 0x0446, 0x0434, 0x0435, 0x0444, 0x0433,
    0x0445, 0x0438, 0x0439, 0x043a, 0x043b, 0x043c, 0x043d, 0x043e,
    0x043f, 0x044f, 0x0440, 0x0441, 0x0442, 0x0443, 0x0436, 0x0432,
    0x044c, 0x044b, 0x0437, 0x0448, 0x044d, 0x0449, 0x0447, 0x044a,
    0x042e, 0x0410, 0x0411, 0x0426, 0x0414, 0x0415, 0x0424, 0x0413,
    0x0425, 0x0418, 0x0419, 0x041a, 0x041b, 0x041c, 0x041d, 0x041e,
    0x041f, 0x042f, 0x0420, 0x0421, 0x0422, 0x0423, 0x0416, 0x0412,
    0x042c, 0x042b, 0x0417, 0x0428, 0x042d, 0x0429, 0x0427, 0x042a
};

static const unsigned short greekKeysymsToUnicode[] = {
    0x0000, 0x0386, 0x0388, 0x0389, 0x038a, 0x03aa, 0x0000, 0x038c,
    0x038e, 0x03ab, 0x0000, 0x038f, 0x0000, 0x0000, 0x0385, 0x2015,
    0x0000, 0x03ac, 0x03ad, 0x03ae, 0x03af, 0x03ca, 0x0390, 0x03cc,
    0x03cd, 0x03cb, 0x03b0, 0x03ce, 0x0000, 0x0000, 0x0000, 0x0000,
    0x0000, 0x0391, 0x0392, 0x0393, 0x0394, 0x0395, 0x0396, 0x0397,
    0x0398, 0x0399, 0x039a, 0x039b, 0x039c, 0x039d, 0x039e, 0x039f,
    0x03a0, 0x03a1, 0x03a3, 0x0000, 0x03a4, 0x03a5, 0x03a6, 0x03a7,
    0x03a8, 0x03a9, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
    0x0000, 0x03b1, 0x03b2, 0x03b3, 0x03b4, 0x03b5, 0x03b6, 0x03b7,
    0x03b8, 0x03b9, 0x03ba, 0x03bb, 0x03bc, 0x03bd, 0x03be, 0x03bf,
    0x03c0, 0x03c1, 0x03c3, 0x03c2, 0x03c4, 0x03c5, 0x03c6, 0x03c7,
    0x03c8, 0x03c9, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
};

static const unsigned short technicalKeysymsToUnicode[] = {
    0x0000, 0x23B7, 0x250C, 0x2500, 0x2320, 0x2321, 0x2502, 0x23A1,
    0x23A3, 0x23A4, 0x23A6, 0x239B, 0x239D, 0x239E, 0x23A0, 0x23A8,
    0x23AC, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
    0x0000, 0x0000, 0x0000, 0x0000, 0x2264, 0x2260, 0x2265, 0x222B,
    0x2234, 0x221D, 0x221E, 0x0000, 0x0000, 0x2207, 0x0000, 0x0000,
    0x223C, 0x2243, 0x0000, 0x0000, 0x0000, 0x21D4, 0x21D2, 0x2261,
    0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x221A, 0x0000,
    0x0000, 0x0000, 0x2282, 0x2283, 0x2229, 0x222A, 0x2227, 0x2228,
    0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
    0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x2202,
    0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0192, 0x0000,
    0x0000, 0x0000, 0x0000, 0x2190, 0x2191, 0x2192, 0x2193, 0x0000
};

static const unsigned short specialKeysymsToUnicode[] = {
    0x25C6, 0x2592, 0x2409, 0x240C, 0x240D, 0x240A, 0x0000, 0x0000,
    0x2424, 0x240B, 0x2518, 0x2510, 0x250C, 0x2514, 0x253C, 0x23BA,
    0x23BB, 0x2500, 0x23BC, 0x23BD, 0x251C, 0x2524, 0x2534, 0x252C,
    0x2502, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
};

static const unsigned short publishingKeysymsToUnicode[] = {
    0x0000, 0x2003, 0x2002, 0x2004, 0x2005, 0x2007, 0x2008, 0x2009,
    0x200a, 0x2014, 0x2013, 0x0000, 0x0000, 0x0000, 0x2026, 0x2025,
    0x2153, 0x2154, 0x2155, 0x2156, 0x2157, 0x2158, 0x2159, 0x215a,
    0x2105, 0x0000, 0x0000, 0x2012, 0x2329, 0x0000, 0x232a, 0x0000,
    0x0000, 0x0000, 0x0000, 0x215b, 0x215c, 0x215d, 0x215e, 0x0000,
    0x0000, 0x2122, 0x2613, 0x0000, 0x25c1, 0x25b7, 0x25cb, 0x25af,
    0x2018, 0x2019, 0x201c, 0x201d, 0x211e, 0x0000, 0x2032, 0x2033,
    0x0000, 0x271d, 0x0000, 0x25ac, 0x25c0, 0x25b6, 0x25cf, 0x25ae,
    0x25e6, 0x25ab, 0x25ad, 0x25b3, 0x25bd, 0x2606, 0x2022, 0x25aa,
    0x25b2, 0x25bc, 0x261c, 0x261e, 0x2663, 0x2666, 0x2665, 0x0000,
    0x2720, 0x2020, 0x2021, 0x2713, 0x2717, 0x266f, 0x266d, 0x2642,
    0x2640, 0x260e, 0x2315, 0x2117, 0x2038, 0x201a, 0x201e, 0x0000
};

static const unsigned short aplKeysymsToUnicode[] = {
    0x0000, 0x0000, 0x0000, 0x003c, 0x0000, 0x0000, 0x003e, 0x0000,
    0x2228, 0x2227, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
    0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
    0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
    0x00af, 0x0000, 0x22a5, 0x2229, 0x230a, 0x0000, 0x005f, 0x0000,
    0x0000, 0x0000, 0x2218, 0x0000, 0x2395, 0x0000, 0x22a4, 0x25cb,
    0x0000, 0x0000, 0x0000, 0x2308, 0x0000, 0x0000, 0x222a, 0x0000,
    0x2283, 0x0000, 0x2282, 0x0000, 0x22a2, 0x0000, 0x0000, 0x0000,
    0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
    0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
    0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
    0x0000, 0x0000, 0x0000, 0x0000, 0x22a3, 0x0000, 0x0000, 0x0000
};

static const unsigned short koreanKeysymsToUnicode[] = {
    0x0000, 0x3131, 0x3132, 0x3133, 0x3134, 0x3135, 0x3136, 0x3137,
    0x3138, 0x3139, 0x313a, 0x313b, 0x313c, 0x313d, 0x313e, 0x313f,
    0x3140, 0x3141, 0x3142, 0x3143, 0x3144, 0x3145, 0x3146, 0x3147,
    0x3148, 0x3149, 0x314a, 0x314b, 0x314c, 0x314d, 0x314e, 0x314f,
    0x3150, 0x3151, 0x3152, 0x3153, 0x3154, 0x3155, 0x3156, 0x3157,
    0x3158, 0x3159, 0x315a, 0x315b, 0x315c, 0x315d, 0x315e, 0x315f,
    0x3160, 0x3161, 0x3162, 0x3163, 0x11a8, 0x11a9, 0x11aa, 0x11ab,
    0x11ac, 0x11ad, 0x11ae, 0x11af, 0x11b0, 0x11b1, 0x11b2, 0x11b3,
    0x11b4, 0x11b5, 0x11b6, 0x11b7, 0x11b8, 0x11b9, 0x11ba, 0x11bb,
    0x11bc, 0x11bd, 0x11be, 0x11bf, 0x11c0, 0x11c1, 0x11c2, 0x316d,
    0x3171, 0x3178, 0x317f, 0x3181, 0x3184, 0x3186, 0x318d, 0x318e,
    0x11eb, 0x11f0, 0x11f9, 0x0000, 0x0000, 0x0000, 0x0000, 0x20a9
};

static QChar keysymToUnicode(unsigned char byte3, unsigned char byte4)
{
    switch (byte3) {
    case 0x04:
        // katakana
        if (byte4 > 0xa0 && byte4 < 0xe0)
            return QChar(katakanaKeysymsToUnicode[byte4 - 0xa0]);
        else if (byte4 == 0x7e)
            return QChar(0x203e); // Overline
        break;
    case 0x06:
        // russian, use lookup table
        if (byte4 > 0xa0)
            return QChar(cyrillicKeysymsToUnicode[byte4 - 0xa0]);
        break;
    case 0x07:
        // greek
        if (byte4 > 0xa0)
            return QChar(greekKeysymsToUnicode[byte4 - 0xa0]);
        break;
    case 0x08:
        // technical
        if (byte4 > 0xa0)
            return QChar(technicalKeysymsToUnicode[byte4 - 0xa0]);
        break;
    case 0x09:
        // special
        if (byte4 >= 0xe0)
            return QChar(specialKeysymsToUnicode[byte4 - 0xe0]);
        break;
    case 0x0a:
        // publishing
        if (byte4 > 0xa0)
            return QChar(publishingKeysymsToUnicode[byte4 - 0xa0]);
        break;
    case 0x0b:
        // APL
        if (byte4 > 0xa0)
            return QChar(aplKeysymsToUnicode[byte4 - 0xa0]);
        break;
    case 0x0e:
        // Korean
        if (byte4 > 0xa0)
            return QChar(koreanKeysymsToUnicode[byte4 - 0xa0]);
        break;
    default:
        break;
    }
    return QChar(0x0);
}
#endif

static QString translateKeySym(KeySym keysym, uint xmodifiers,
                               int &code, Qt::KeyboardModifiers &modifiers,
                               QByteArray &chars, int &count)
{
    // all keysyms smaller than 0xff00 are actally keys that can be mapped to unicode chars

    extern QTextCodec *qt_input_mapper; // from qapplication_x11.cpp
    QTextCodec *mapper = qt_input_mapper;
    QChar converted;

    if (count == 0 && keysym < 0xff00) {
        unsigned char byte3 = (unsigned char)(keysym >> 8);
        int mib = -1;
        switch(byte3) {
        case 0: // Latin 1
        case 1: // Latin 2
        case 2: //latin 3
        case 3: // latin4
            mib = byte3 + 4; break;
        case 5: // arabic
            mib = 82; break;
        case 12: // Hebrew
            mib = 85; break;
        case 13: // Thai
            mib = 2259; break;
        case 4: // kana
        case 6: // cyrillic
        case 7: // greek
        case 8: // technical, no mapping here at the moment
        case 9: // Special
        case 10: // Publishing
        case 11: // APL
        case 14: // Korean, no mapping
            mib = -1; // manual conversion
            mapper = 0;
#if !defined(QT_NO_XIM)
            converted = keysymToUnicode(byte3, keysym & 0xff);
#endif
        case 0x20:
            // currency symbols
            if (keysym >= 0x20a0 && keysym <= 0x20ac) {
                mib = -1; // manual conversion
                mapper = 0;
                converted = (uint)keysym;
            }
            break;
        default:
            break;
        }
        if (mib != -1) {
            mapper = QTextCodec::codecForMib(mib);
            if (chars.isEmpty())
                chars.resize(1);
            chars[0] = (unsigned char) (keysym & 0xff); // get only the fourth bit for conversion later
            count++;
        }
    } else if (keysym >= 0x1000000 && keysym <= 0x100ffff) {
        converted = (ushort) (keysym - 0x1000000);
        mapper = 0;
    }
    if (count < (int)chars.size()-1)
        chars[count] = '\0';

    QString text;
    if (!mapper && converted.unicode() != 0x0) {
        text = converted;
    } else if (!chars.isEmpty()) {
        // convert chars (8bit) to text (unicode).
        if (mapper)
            text = mapper->toUnicode(chars.data(), count, 0);
        if (text.isEmpty()) {
            // no mapper, or codec couldn't convert to unicode (this
            // can happen when running in the C locale or with no LANG
            // set). try converting from latin-1
            text = QString::fromLatin1(chars);
        }
    }

    modifiers = X11->translateModifiers(xmodifiers);

    // Commentary in X11/keysymdef says that X codes match ASCII, so it
    // is safe to use the locale functions to process X codes in ISO8859-1.
    //
    // This is mainly for compatibility - applications should not use the
    // Qt keycodes between 128 and 255, but should rather use the
    // QKeyEvent::text().
    //
    extern QTextCodec *qt_input_mapper; // from qapplication_x11.cpp
    if (keysym < 128 || (keysym < 256 && (!qt_input_mapper || qt_input_mapper->mibEnum()==4))) {
        // upper-case key, if known
        code = isprint((int)keysym) ? toupper((int)keysym) : 0;
    } else if (keysym >= XK_F1 && keysym <= XK_F35) {
        // function keys
        code = Qt::Key_F1 + ((int)keysym - XK_F1);
    } else if (keysym >= XK_KP_Space && keysym <= XK_KP_9) {
        if (keysym >= XK_KP_0) {
            // numeric keypad keys
            code = Qt::Key_0 + ((int)keysym - XK_KP_0);
        } else {
            code = translateKeySym(keysym);
        }
        modifiers |= Qt::KeypadModifier;
    } else if (text.length() == 1 && text.unicode()->unicode() > 0x1f && text.unicode()->unicode() != 0x7f && !(keysym >= XK_dead_grave && keysym <= XK_dead_horn)) {
        code = text.unicode()->toUpper().unicode();
    } else {
        // any other keys
        code = translateKeySym(keysym);

        if (code == Qt::Key_Tab && (modifiers & Qt::ShiftModifier)) {
            // map shift+tab to shift+backtab, QShortcutMap knows about it
            // and will handle it.
            code = Qt::Key_Backtab;
            text = QString();
        }
    }

    return text;
}

extern bool qt_use_rtl_extensions; // from qapplication_x11.cpp

bool QKeyMapperPrivate::translateKeyEventInternal(QWidget *keyWidget,
                                                  const XEvent *event,
                                                  KeySym &keysym,
                                                  int& count,
                                                  QString& text,
                                                  Qt::KeyboardModifiers &modifiers,
                                                  int& code,
                                                  QEvent::Type &type,
                                                  bool statefulTranslation)
{
    XKeyEvent xkeyevent = event->xkey;
    int keycode = event->xkey.keycode;
    // save the modifier state, we will use the keystate uint later by passing
    // it to translateButtonState
    uint keystate = event->xkey.state;

    type = (event->type == XKeyPress) ? QEvent::KeyPress : QEvent::KeyRelease;

    static int directionKeyEvent = 0;
    static unsigned int lastWinId = 0;

    // translate pending direction change
    if (statefulTranslation && qt_use_rtl_extensions && type == QEvent::KeyRelease) {
        if (directionKeyEvent == Qt::Key_Direction_R || directionKeyEvent == Qt::Key_Direction_L) {
            type = QEvent::KeyPress;
            code = directionKeyEvent;
            text = QString();
            directionKeyEvent = 0;
	    lastWinId = 0;
            return true;
        } else {
            directionKeyEvent = 0;
	    lastWinId = 0;
        }
    }

    // some XmbLookupString implementations don't return buffer overflow correctly,
    // so we increase the input buffer to allow for long strings...
    // 256 chars * 2 bytes + 1 null-term == 513 bytes
    QByteArray chars;
    chars.resize(513);

    count = XLookupString(&xkeyevent, chars.data(), chars.size(), &keysym, 0);
    if (count && !keycode) {
        extern int qt_ximComposingKeycode; // from qapplication_x11.cpp
        keycode = qt_ximComposingKeycode;
        qt_ximComposingKeycode = 0;
    }

    // translate the keysym + xmodifiers to Qt::Key_* + Qt::KeyboardModifiers
    text = translateKeySym(keysym, keystate, code, modifiers, chars, count);

    // Watch for keypresses and if its a key belonging to the Ctrl-Shift
    // direction-changing accel, remember it.
    // We keep track of those keys instead of using the event's state
    // (to figure out whether the Ctrl modifier is held while Shift is pressed,
    // or Shift is held while Ctrl is pressed) since the 'state' doesn't tell
    // us whether the modifier held is Left or Right.
    if (statefulTranslation && qt_use_rtl_extensions && type == QEvent::KeyPress) {
        if (keysym == XK_Control_L || keysym == XK_Control_R
            || keysym == XK_Shift_L || keysym == XK_Shift_R) {
	    if (!directionKeyEvent) {
		directionKeyEvent = keysym;
		// This code exists in order to check that
		// the event is occurred in the same widget.
		lastWinId = keyWidget->internalWinId();
	    }
        } else {
            // this can no longer be a direction-changing accel.
            // if any other key was pressed.
            directionKeyEvent = Qt::Key_Space;
        }

        if (directionKeyEvent && lastWinId == keyWidget->internalWinId()) {
            if ((keysym == XK_Shift_L && directionKeyEvent == XK_Control_L)
                || (keysym == XK_Control_L && directionKeyEvent == XK_Shift_L)) {
                directionKeyEvent = Qt::Key_Direction_L;
            } else if ((keysym == XK_Shift_R && directionKeyEvent == XK_Control_R)
                       || (keysym == XK_Control_R && directionKeyEvent == XK_Shift_R)) {
                directionKeyEvent = Qt::Key_Direction_R;
            }
        } else if (directionKeyEvent == Qt::Key_Direction_L
                   || directionKeyEvent == Qt::Key_Direction_R) {
            directionKeyEvent = Qt::Key_Space; // invalid
        }
    }

    return true;
}


struct qt_auto_repeat_data
{
    // match the window and keycode with timestamp delta of 10 ms
    Window window;
    KeyCode keycode;
    Time timestamp;

    // queue scanner state
    bool release;
    bool error;
};

#if defined(Q_C_CALLBACKS)
extern "C" {
#endif

static Bool qt_keypress_scanner(Display *, XEvent *event, XPointer arg)
{
    if (event->type != XKeyPress && event->type != XKeyRelease)
        return false;

    qt_auto_repeat_data *data = (qt_auto_repeat_data *) arg;
    if (data->error)
        return false;

    if (event->xkey.window  != data->window ||
        event->xkey.keycode != data->keycode) {
        // deal breakers: key events in a different window or an event
        // with a different key code
        data->error = true;
        return false;
    }

    if (event->type == XKeyPress) {
        data->error = (! data->release || event->xkey.time - data->timestamp > 10);
        return (! data->error);
    }

    // must be XKeyRelease event
    if (data->release) {
        // found a second release
        data->error = true;
        return false;
    }

    // found a single release
    data->release = true;
    data->timestamp = event->xkey.time;

    return false;
}

static Bool qt_keyrelease_scanner(Display *, XEvent *event, XPointer arg)
{
    const qt_auto_repeat_data *data = (const qt_auto_repeat_data *) arg;
    return (event->type == XKeyRelease &&
            event->xkey.window  == data->window &&
            event->xkey.keycode == data->keycode);
}

#if defined(Q_C_CALLBACKS)
}
#endif

bool QKeyMapperPrivate::translateKeyEvent(QWidget *keyWidget, const XEvent *event, bool grab)
{
    int           code = -1;
    int           count = 0;
    Qt::KeyboardModifiers modifiers;

    if (qt_sm_blockUserInput) // block user interaction during session management
        return true;

    Display *dpy = X11->display;

    if (!keyWidget->isEnabled())
        return true;

    QEvent::Type type;
    bool    autor = false;
    QString text;

    KeySym keysym = 0;
    translateKeyEventInternal(keyWidget, event, keysym, count, text, modifiers, code, type);

    // was this the last auto-repeater?
    qt_auto_repeat_data auto_repeat_data;
    auto_repeat_data.window = event->xkey.window;
    auto_repeat_data.keycode = event->xkey.keycode;
    auto_repeat_data.timestamp = event->xkey.time;

    static uint curr_autorep = 0;
    if (event->type == XKeyPress) {
        if (curr_autorep == event->xkey.keycode) {
            autor = true;
            curr_autorep = 0;
        }
    } else {
        // look ahead for auto-repeat
        XEvent nextpress;

        auto_repeat_data.release = true;
        auto_repeat_data.error = false;
        if (XCheckIfEvent(dpy, &nextpress, &qt_keypress_scanner,
                          (XPointer) &auto_repeat_data)) {
            autor = true;

            // Put it back... we COULD send the event now and not need
            // the static curr_autorep variable.
            XPutBackEvent(dpy,&nextpress);
        }
        curr_autorep = autor ? event->xkey.keycode : 0;
    }

#if defined QT3_SUPPORT && !defined(QT_NO_SHORTCUT)
    // process accelerators before doing key compression
    if (type == QEvent::KeyPress && !grab
        && QApplicationPrivate::instance()->use_compat()) {
        // send accel events if the keyboard is not grabbed
        QKeyEventEx a(type, code, modifiers, text, autor, qMax(qMax(count,1), int(text.length())),
                      event->xkey.keycode, keysym, event->xkey.state);
        if (QApplicationPrivate::instance()->qt_tryAccelEvent(keyWidget, &a))
            return true;
    }
#endif

#ifndef QT_NO_IM
    QInputContext *qic = keyWidget->inputContext();
#endif

    // compress keys
    if (!text.isEmpty() && keyWidget->testAttribute(Qt::WA_KeyCompression) &&
#ifndef QT_NO_IM
        // Ordinary input methods require discrete key events to work
        // properly, so key compression has to be disabled when input
        // context exists.
        //
        // And further consideration, some complex input method
        // require all key press/release events discretely even if
        // the input method awares of key compression and compressed
        // keys are ordinary alphabets. For example, the uim project
        // is planning to implement "combinational shift" feature for
        // a Japanese input method, uim-skk. It will work as follows.
        //
        // 1. press "r"
        // 2. press "u"
        // 3. release both "r" and "u" in arbitrary order
        // 4. above key sequence generates "Ru"
        //
        // Of course further consideration about other participants
        // such as key repeat mechanism is required to implement such
        // feature.
        !qic &&
#endif // QT_NO_IM
        // do not compress keys if the key event we just got above matches
        // one of the key ranges used to compute stopCompression
        !((code >= Qt::Key_Escape && code <= Qt::Key_SysReq)
          || (code >= Qt::Key_Home && code <= Qt::Key_PageDown)
          || (code >= Qt::Key_Super_L && code <= Qt::Key_Direction_R)
          || (code == 0)
          || (text.length() == 1 && text.unicode()->unicode() == '\n'))) {
        // the widget wants key compression so it gets it

        // sync the event queue, this makes key compress work better
        XSync(dpy, false);

        for (;;) {
            XEvent        evRelease;
            XEvent        evPress;
            if (!XCheckTypedWindowEvent(dpy,event->xkey.window,
                                        XKeyRelease,&evRelease))
                break;
            if (!XCheckTypedWindowEvent(dpy,event->xkey.window,
                                        XKeyPress,&evPress)) {
                XPutBackEvent(dpy, &evRelease);
                break;
            }
            QString textIntern;
            int codeIntern = -1;
            int countIntern = 0;
            Qt::KeyboardModifiers modifiersIntern;
            QEvent::Type t;
            KeySym keySymIntern;
            translateKeyEventInternal(keyWidget, &evPress, keySymIntern, countIntern, textIntern,
                                      modifiersIntern, codeIntern, t);
            // use stopCompression to stop key compression for the following
            // key event ranges:
            bool stopCompression =
                // 1) misc keys
                (codeIntern >= Qt::Key_Escape && codeIntern <= Qt::Key_SysReq)
                // 2) cursor movement
                || (codeIntern >= Qt::Key_Home && codeIntern <= Qt::Key_PageDown)
                // 3) extra keys
                || (codeIntern >= Qt::Key_Super_L && codeIntern <= Qt::Key_Direction_R)
                // 4) something that a) doesn't translate to text or b) translates
                //    to newline text
                || (codeIntern == 0)
                || (textIntern.length() == 1 && textIntern.unicode()->unicode() == '\n')
                || (codeIntern == Qt::Key_unknown);

            if (modifiersIntern == modifiers && !textIntern.isEmpty() && !stopCompression) {
                text += textIntern;
                count += countIntern;
            } else {
                XPutBackEvent(dpy, &evPress);
                XPutBackEvent(dpy, &evRelease);
                break;
            }
        }
    }

    // autorepeat compression makes sense for all widgets (Windows
    // does it automatically ....)
    if (event->type == XKeyPress && text.length() <= 1
#ifndef QT_NO_IM
        // input methods need discrete key events
        && !qic
#endif// QT_NO_IM
	) {
        XEvent dummy;

        for (;;) {
            auto_repeat_data.release = false;
            auto_repeat_data.error = false;
            if (! XCheckIfEvent(dpy, &dummy, &qt_keypress_scanner,
                                (XPointer) &auto_repeat_data))
                break;
            if (! XCheckIfEvent(dpy, &dummy, &qt_keyrelease_scanner,
                                (XPointer) &auto_repeat_data))
                break;

            count++;
            if (!text.isEmpty())
                text += text[0];
        }
    }

    return QKeyMapper::sendKeyEvent(keyWidget, grab, type, code, modifiers, text, autor,
                                    qMax(qMax(count,1), int(text.length())),
                                    event->xkey.keycode, keysym, event->xkey.state);
}

bool QKeyMapper::sendKeyEvent(QWidget *keyWidget, bool grab,
                              QEvent::Type type, int code, Qt::KeyboardModifiers modifiers,
                              const QString &text, bool autorepeat, int count,
                              quint32 nativeScanCode, quint32 nativeVirtualKey, quint32 nativeModifiers,
                              bool *)
{
    // try the menukey first
    if (type == QEvent::KeyPress && code == Qt::Key_Menu) {
        QVariant v = keyWidget->inputMethodQuery(Qt::ImMicroFocus);
        QPoint globalPos;
        QPoint pos;
        if (v.isNull()) {
            globalPos = QCursor::pos();
            pos = keyWidget->mapFromGlobal(globalPos);
        } else {
            pos = v.toRect().center();
            globalPos = keyWidget->mapToGlobal(pos);
        }
        QContextMenuEvent e(QContextMenuEvent::Keyboard, pos, globalPos);
        qt_sendSpontaneousEvent(keyWidget, &e);
        if(e.isAccepted())
            return true;
    }

    Q_UNUSED(grab);
    QKeyEventEx e(type, code, modifiers, text, autorepeat, qMax(qMax(count,1), int(text.length())),
                  nativeScanCode, nativeVirtualKey, nativeModifiers);
    return qt_sendSpontaneousEvent(keyWidget, &e);
}

QT_END_NAMESPACE