src/gui/kernel/qkeysequence.cpp

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/****************************************************************************
**
** Copyright (C) 1992-2006 Trolltech ASA. All rights reserved.
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** This file may be used under the terms of the GNU General Public
** License version 2.0 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 GNU
** General Public Licensing requirements will be met:
** http://www.trolltech.com/products/qt/opensource.html
**
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://www.trolltech.com/products/qt/licensing.html or contact the
** sales department at sales@trolltech.com.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/

#include "qkeysequence.h"
#include "qkeysequence_p.h"
#include "private/qapplication_p.h"

#ifndef QT_NO_SHORTCUT

#include "qshortcut.h"
#include "qdebug.h"
#ifndef QT_NO_REGEXP
# include "qregexp.h"
#endif
#ifndef QT_NO_DATASTREAM
# include "qdatastream.h"
#endif
#include "qvariant.h"

#ifdef Q_WS_MAC
# include <private/qt_mac_p.h>
# define QMAC_CTRL QChar(kCommandUnicode)
# define QMAC_META QChar(kControlUnicode)
# define QMAC_ALT  QChar(kOptionUnicode)
# define QMAC_SHIFT QChar(kShiftUnicode)
#endif

#ifdef Q_WS_MAC
static bool qt_sequence_no_mnemonics = true;
#else
static bool qt_sequence_no_mnemonics = false;
#endif
void Q_GUI_EXPORT qt_set_sequence_auto_mnemonic(bool b) { qt_sequence_no_mnemonics = !b; }

static const struct {
    int key;
    const char* name;
} keyname[] = {
    { Qt::Key_Space,        QT_TRANSLATE_NOOP("QShortcut", "Space") },
    { Qt::Key_Escape,       QT_TRANSLATE_NOOP("QShortcut", "Esc") },
    { Qt::Key_Tab,          QT_TRANSLATE_NOOP("QShortcut", "Tab") },
    { Qt::Key_Backtab,      QT_TRANSLATE_NOOP("QShortcut", "Backtab") },
    { Qt::Key_Backspace,    QT_TRANSLATE_NOOP("QShortcut", "Backspace") },
    { Qt::Key_Return,       QT_TRANSLATE_NOOP("QShortcut", "Return") },
    { Qt::Key_Enter,        QT_TRANSLATE_NOOP("QShortcut", "Enter") },
    { Qt::Key_Insert,       QT_TRANSLATE_NOOP("QShortcut", "Ins") },
    { Qt::Key_Delete,       QT_TRANSLATE_NOOP("QShortcut", "Del") },
    { Qt::Key_Pause,        QT_TRANSLATE_NOOP("QShortcut", "Pause") },
    { Qt::Key_Print,        QT_TRANSLATE_NOOP("QShortcut", "Print") },
    { Qt::Key_SysReq,       QT_TRANSLATE_NOOP("QShortcut", "SysReq") },
    { Qt::Key_Home,         QT_TRANSLATE_NOOP("QShortcut", "Home") },
    { Qt::Key_End,          QT_TRANSLATE_NOOP("QShortcut", "End") },
    { Qt::Key_Left,         QT_TRANSLATE_NOOP("QShortcut", "Left") },
    { Qt::Key_Up,           QT_TRANSLATE_NOOP("QShortcut", "Up") },
    { Qt::Key_Right,        QT_TRANSLATE_NOOP("QShortcut", "Right") },
    { Qt::Key_Down,         QT_TRANSLATE_NOOP("QShortcut", "Down") },
    { Qt::Key_PageUp,       QT_TRANSLATE_NOOP("QShortcut", "PgUp") },
    { Qt::Key_PageDown,     QT_TRANSLATE_NOOP("QShortcut", "PgDown") },
    { Qt::Key_CapsLock,     QT_TRANSLATE_NOOP("QShortcut", "CapsLock") },
    { Qt::Key_NumLock,      QT_TRANSLATE_NOOP("QShortcut", "NumLock") },
    { Qt::Key_ScrollLock,   QT_TRANSLATE_NOOP("QShortcut", "ScrollLock") },
    { Qt::Key_Menu,         QT_TRANSLATE_NOOP("QShortcut", "Menu") },
    { Qt::Key_Help,         QT_TRANSLATE_NOOP("QShortcut", "Help") },

    // Multimedia keys
    { Qt::Key_Back,         QT_TRANSLATE_NOOP("QShortcut", "Back") },
    { Qt::Key_Forward,      QT_TRANSLATE_NOOP("QShortcut", "Forward") },
    { Qt::Key_Stop,         QT_TRANSLATE_NOOP("QShortcut", "Stop") },
    { Qt::Key_Refresh,      QT_TRANSLATE_NOOP("QShortcut", "Refresh") },
    { Qt::Key_VolumeDown,   QT_TRANSLATE_NOOP("QShortcut", "Volume Down") },
    { Qt::Key_VolumeMute,   QT_TRANSLATE_NOOP("QShortcut", "Volume Mute") },
    { Qt::Key_VolumeUp,     QT_TRANSLATE_NOOP("QShortcut", "Volume Up") },
    { Qt::Key_BassBoost,    QT_TRANSLATE_NOOP("QShortcut", "Bass Boost") },
    { Qt::Key_BassUp,       QT_TRANSLATE_NOOP("QShortcut", "Bass Up") },
    { Qt::Key_BassDown,     QT_TRANSLATE_NOOP("QShortcut", "Bass Down") },
    { Qt::Key_TrebleUp,     QT_TRANSLATE_NOOP("QShortcut", "Treble Up") },
    { Qt::Key_TrebleDown,   QT_TRANSLATE_NOOP("QShortcut", "Treble Down") },
    { Qt::Key_MediaPlay,    QT_TRANSLATE_NOOP("QShortcut", "Media Play") },
    { Qt::Key_MediaStop,    QT_TRANSLATE_NOOP("QShortcut", "Media Stop") },
    { Qt::Key_MediaPrevious,QT_TRANSLATE_NOOP("QShortcut", "Media Previous") },
    { Qt::Key_MediaNext,    QT_TRANSLATE_NOOP("QShortcut", "Media Next") },
    { Qt::Key_MediaRecord,  QT_TRANSLATE_NOOP("QShortcut", "Media Record") },
    { Qt::Key_HomePage,     QT_TRANSLATE_NOOP("QShortcut", "Home Page") },
    { Qt::Key_Favorites,    QT_TRANSLATE_NOOP("QShortcut", "Favorites") },
    { Qt::Key_Search,       QT_TRANSLATE_NOOP("QShortcut", "Search") },
    { Qt::Key_Standby,      QT_TRANSLATE_NOOP("QShortcut", "Standby") },
    { Qt::Key_OpenUrl,      QT_TRANSLATE_NOOP("QShortcut", "Open URL") },
    { Qt::Key_LaunchMail,   QT_TRANSLATE_NOOP("QShortcut", "Launch Mail") },
    { Qt::Key_LaunchMedia,  QT_TRANSLATE_NOOP("QShortcut", "Launch Media") },
    { Qt::Key_Launch0,      QT_TRANSLATE_NOOP("QShortcut", "Launch (0)") },
    { Qt::Key_Launch1,      QT_TRANSLATE_NOOP("QShortcut", "Launch (1)") },
    { Qt::Key_Launch2,      QT_TRANSLATE_NOOP("QShortcut", "Launch (2)") },
    { Qt::Key_Launch3,      QT_TRANSLATE_NOOP("QShortcut", "Launch (3)") },
    { Qt::Key_Launch4,      QT_TRANSLATE_NOOP("QShortcut", "Launch (4)") },
    { Qt::Key_Launch5,      QT_TRANSLATE_NOOP("QShortcut", "Launch (5)") },
    { Qt::Key_Launch6,      QT_TRANSLATE_NOOP("QShortcut", "Launch (6)") },
    { Qt::Key_Launch7,      QT_TRANSLATE_NOOP("QShortcut", "Launch (7)") },
    { Qt::Key_Launch8,      QT_TRANSLATE_NOOP("QShortcut", "Launch (8)") },
    { Qt::Key_Launch9,      QT_TRANSLATE_NOOP("QShortcut", "Launch (9)") },
    { Qt::Key_LaunchA,      QT_TRANSLATE_NOOP("QShortcut", "Launch (A)") },
    { Qt::Key_LaunchB,      QT_TRANSLATE_NOOP("QShortcut", "Launch (B)") },
    { Qt::Key_LaunchC,      QT_TRANSLATE_NOOP("QShortcut", "Launch (C)") },
    { Qt::Key_LaunchD,      QT_TRANSLATE_NOOP("QShortcut", "Launch (D)") },
    { Qt::Key_LaunchE,      QT_TRANSLATE_NOOP("QShortcut", "Launch (E)") },
    { Qt::Key_LaunchF,      QT_TRANSLATE_NOOP("QShortcut", "Launch (F)") },

    // --------------------------------------------------------------
    // More consistent namings
    { Qt::Key_Print,        QT_TRANSLATE_NOOP("QShortcut", "Print Screen") },
    { Qt::Key_PageUp,       QT_TRANSLATE_NOOP("QShortcut", "Page Up") },
    { Qt::Key_PageDown,     QT_TRANSLATE_NOOP("QShortcut", "Page Down") },
    { Qt::Key_CapsLock,     QT_TRANSLATE_NOOP("QShortcut", "Caps Lock") },
    { Qt::Key_NumLock,      QT_TRANSLATE_NOOP("QShortcut", "Num Lock") },
    { Qt::Key_NumLock,      QT_TRANSLATE_NOOP("QShortcut", "Number Lock") },
    { Qt::Key_ScrollLock,   QT_TRANSLATE_NOOP("QShortcut", "Scroll Lock") },
    { Qt::Key_Insert,       QT_TRANSLATE_NOOP("QShortcut", "Insert") },
    { Qt::Key_Delete,       QT_TRANSLATE_NOOP("QShortcut", "Delete") },
    { Qt::Key_Escape,       QT_TRANSLATE_NOOP("QShortcut", "Escape") },
    { Qt::Key_SysReq,       QT_TRANSLATE_NOOP("QShortcut", "System Request") },

    // --------------------------------------------------------------
    // Keypad navigation keys
    { Qt::Key_Select,       QT_TRANSLATE_NOOP("QShortcut", "Select") },
    { Qt::Key_Yes,          QT_TRANSLATE_NOOP("QShortcut", "Yes") },
    { Qt::Key_No,           QT_TRANSLATE_NOOP("QShortcut", "No") },

    // --------------------------------------------------------------
    // Device keys
    { Qt::Key_Context1,     QT_TRANSLATE_NOOP("QShortcut", "Context1") },
    { Qt::Key_Context2,     QT_TRANSLATE_NOOP("QShortcut", "Context2") },
    { Qt::Key_Context3,     QT_TRANSLATE_NOOP("QShortcut", "Context3") },
    { Qt::Key_Context4,     QT_TRANSLATE_NOOP("QShortcut", "Context4") },
    { Qt::Key_Call,         QT_TRANSLATE_NOOP("QShortcut", "Call") },
    { Qt::Key_Hangup,       QT_TRANSLATE_NOOP("QShortcut", "Hangup") },
    { Qt::Key_Flip,         QT_TRANSLATE_NOOP("QShortcut", "Flip") },


    { 0, 0 }
};

//Table of key bindings. It must be sorted on key sequence.
//A priority of 1 indicates that this is the primary key binding when multiple are defined.

const QKeyBinding QKeySequencePrivate::keyBindings[] = {
//   StandardKey                            Priority    Key Sequence                            Platforms
    {QKeySequence::Back,                    0,          Qt::Key_Backspace,                      QApplicationPrivate::KB_Win},
    {QKeySequence::Delete,                  1,          Qt::Key_Delete,                         QApplicationPrivate::KB_All},
    {QKeySequence::MoveToStartOfLine,       0,          Qt::Key_Home,                           QApplicationPrivate::KB_Win | QApplicationPrivate::KB_X11},
    {QKeySequence::MoveToStartOfDocument,   0,          Qt::Key_Home,                           QApplicationPrivate::KB_Mac},
    {QKeySequence::MoveToEndOfLine,         0,          Qt::Key_End,                            QApplicationPrivate::KB_Win | QApplicationPrivate::KB_X11},
    {QKeySequence::MoveToEndOfDocument,     0,          Qt::Key_End,                            QApplicationPrivate::KB_Mac},
    {QKeySequence::MoveToPreviousChar,      0,          Qt::Key_Left,                           QApplicationPrivate::KB_All},
    {QKeySequence::MoveToPreviousLine,      0,          Qt::Key_Up,                             QApplicationPrivate::KB_All},
    {QKeySequence::MoveToNextChar,          0,          Qt::Key_Right,                          QApplicationPrivate::KB_All},
    {QKeySequence::MoveToNextLine,          0,          Qt::Key_Down,                           QApplicationPrivate::KB_All},
    {QKeySequence::MoveToPreviousPage,      1,          Qt::Key_PageUp,                         QApplicationPrivate::KB_All},
    {QKeySequence::MoveToNextPage,          1,          Qt::Key_PageDown,                       QApplicationPrivate::KB_All},
    {QKeySequence::HelpContents,            0,          Qt::Key_F1,                             QApplicationPrivate::KB_Win | QApplicationPrivate::KB_X11},
    {QKeySequence::FindNext,                0,          Qt::Key_F3,                             QApplicationPrivate::KB_X11},
    {QKeySequence::FindNext,                1,          Qt::Key_F3,                             QApplicationPrivate::KB_Win},
    {QKeySequence::Refresh,                 0,          Qt::Key_F5,                             QApplicationPrivate::KB_Win | QApplicationPrivate::KB_X11},
    {QKeySequence::Undo,                    0,          Qt::Key_F14,                            QApplicationPrivate::KB_X11}, //Undo on sun keyboards
    {QKeySequence::Copy,                    0,          Qt::Key_F16,                            QApplicationPrivate::KB_X11}, //Copy on sun keyboards
    {QKeySequence::Paste,                   0,          Qt::Key_F18,                            QApplicationPrivate::KB_X11}, //Paste on sun keyboards      
    {QKeySequence::Cut,                     0,          Qt::Key_F20,                            QApplicationPrivate::KB_X11}, //Cut on sun keyboards
    {QKeySequence::PreviousChild,           0,          Qt::Key_Back,                           QApplicationPrivate::KB_All},
    {QKeySequence::NextChild,               0,          Qt::Key_Forward,                        QApplicationPrivate::KB_All}, 
    {QKeySequence::Forward,                 0,          Qt::SHIFT | Qt::Key_Backspace,          QApplicationPrivate::KB_Win},
    {QKeySequence::Paste,                   0,          Qt::SHIFT | Qt::Key_Insert,             QApplicationPrivate::KB_Win | QApplicationPrivate::KB_X11}, 
    {QKeySequence::Cut,                     0,          Qt::SHIFT | Qt::Key_Delete,             QApplicationPrivate::KB_Win | QApplicationPrivate::KB_X11}, //## Check if this should work on mac
    {QKeySequence::SelectStartOfLine,       0,          Qt::SHIFT | Qt::Key_Home,               QApplicationPrivate::KB_Win | QApplicationPrivate::KB_X11},
    {QKeySequence::SelectStartOfDocument,   0,          Qt::SHIFT | Qt::Key_Home,               QApplicationPrivate::KB_Mac},
    {QKeySequence::SelectEndOfLine,         0,          Qt::SHIFT | Qt::Key_End,                QApplicationPrivate::KB_Win | QApplicationPrivate::KB_X11},
    {QKeySequence::SelectEndOfDocument,     0,          Qt::SHIFT | Qt::Key_End,                QApplicationPrivate::KB_Mac},
    {QKeySequence::SelectPreviousChar,      0,          Qt::SHIFT | Qt::Key_Left,               QApplicationPrivate::KB_All},
    {QKeySequence::SelectPreviousLine,      0,          Qt::SHIFT | Qt::Key_Up,                 QApplicationPrivate::KB_All},
    {QKeySequence::SelectNextChar,          0,          Qt::SHIFT | Qt::Key_Right,              QApplicationPrivate::KB_All},
    {QKeySequence::SelectNextLine,          0,          Qt::SHIFT | Qt::Key_Down,               QApplicationPrivate::KB_All},
    {QKeySequence::SelectPreviousPage,      0,          Qt::SHIFT | Qt::Key_PageUp,             QApplicationPrivate::KB_All},
    {QKeySequence::SelectNextPage,          0,          Qt::SHIFT | Qt::Key_PageDown,           QApplicationPrivate::KB_All},
    {QKeySequence::WhatsThis,               1,          Qt::SHIFT | Qt::Key_F1,                 QApplicationPrivate::KB_All},
    {QKeySequence::FindPrevious,            0,          Qt::SHIFT | Qt::Key_F3,                 QApplicationPrivate::KB_X11},
    {QKeySequence::FindPrevious,            1,          Qt::SHIFT | Qt::Key_F3,                 QApplicationPrivate::KB_Win},
    {QKeySequence::ZoomIn,                  1,          Qt::CTRL | Qt::Key_Plus,                QApplicationPrivate::KB_All},
    {QKeySequence::NextChild,               0,          Qt::CTRL | Qt::Key_Comma,               QApplicationPrivate::KB_KDE},
    {QKeySequence::ZoomOut,                 1,          Qt::CTRL | Qt::Key_Minus,               QApplicationPrivate::KB_All},
    {QKeySequence::PreviousChild,           0,          Qt::CTRL | Qt::Key_Period,              QApplicationPrivate::KB_KDE},
    {QKeySequence::HelpContents,            1,          Qt::CTRL | Qt::Key_Question,            QApplicationPrivate::KB_Mac},
    {QKeySequence::SelectAll,               1,          Qt::CTRL | Qt::Key_A,                   QApplicationPrivate::KB_All},
    {QKeySequence::Bold,                    1,          Qt::CTRL | Qt::Key_B,                   QApplicationPrivate::KB_All},
    {QKeySequence::Copy,                    1,          Qt::CTRL | Qt::Key_C,                   QApplicationPrivate::KB_All},
    {QKeySequence::Delete,                  0,          Qt::CTRL | Qt::Key_D,                   QApplicationPrivate::KB_X11}, //emacs (line edit only)
    {QKeySequence::Find,                    0,          Qt::CTRL | Qt::Key_F,                   QApplicationPrivate::KB_All},
    {QKeySequence::FindNext,                1,          Qt::CTRL | Qt::Key_G,                   QApplicationPrivate::KB_Gnome | QApplicationPrivate::KB_Mac},
    {QKeySequence::FindNext,                0,          Qt::CTRL | Qt::Key_G,                   QApplicationPrivate::KB_Win},
    {QKeySequence::Replace,                 0,          Qt::CTRL | Qt::Key_H,                   QApplicationPrivate::KB_Win}, 
    {QKeySequence::Replace,                 0,          Qt::CTRL | Qt::Key_H,                   QApplicationPrivate::KB_Gnome}, 
    {QKeySequence::Italic,                  0,          Qt::CTRL | Qt::Key_I,                   QApplicationPrivate::KB_All}, 
    {QKeySequence::DeleteEndOfLine,         0,          Qt::CTRL | Qt::Key_K,                   QApplicationPrivate::KB_X11}, //emacs (line edit only)
    {QKeySequence::New,                     1,          Qt::CTRL | Qt::Key_N,                   QApplicationPrivate::KB_All},
    {QKeySequence::Open,                    1,          Qt::CTRL | Qt::Key_O,                   QApplicationPrivate::KB_All},
    {QKeySequence::Print,                   1,          Qt::CTRL | Qt::Key_P,                   QApplicationPrivate::KB_All},
    {QKeySequence::Refresh,                 1,          Qt::CTRL | Qt::Key_R,                   QApplicationPrivate::KB_Gnome | QApplicationPrivate::KB_Mac},
    {QKeySequence::Replace,                 0,          Qt::CTRL | Qt::Key_R,                   QApplicationPrivate::KB_KDE},
    {QKeySequence::Save,                    1,          Qt::CTRL | Qt::Key_S,                   QApplicationPrivate::KB_All},
    {QKeySequence::AddTab,                  0,          Qt::CTRL | Qt::Key_T,                   QApplicationPrivate::KB_All},
    {QKeySequence::Underline,               1,          Qt::CTRL | Qt::Key_U,                   QApplicationPrivate::KB_All}, 
    {QKeySequence::Paste,                   1,          Qt::CTRL | Qt::Key_V,                   QApplicationPrivate::KB_All},
    {QKeySequence::Close,                   0,          Qt::CTRL | Qt::Key_W,                   QApplicationPrivate::KB_Win | QApplicationPrivate::KB_X11},
    {QKeySequence::Close,                   1,          Qt::CTRL | Qt::Key_W,                   QApplicationPrivate::KB_Mac},
    {QKeySequence::Cut,                     1,          Qt::CTRL | Qt::Key_X,                   QApplicationPrivate::KB_All},
    {QKeySequence::Redo,                    1,          Qt::CTRL | Qt::Key_Y,                   QApplicationPrivate::KB_Win},
    {QKeySequence::Redo,                    0,          Qt::CTRL | Qt::Key_Y,                   QApplicationPrivate::KB_Mac},//different priority from above
    {QKeySequence::Undo,                    1,          Qt::CTRL | Qt::Key_Z,                   QApplicationPrivate::KB_All},
    {QKeySequence::Back,                    1,          Qt::CTRL | Qt::Key_BracketLeft,         QApplicationPrivate::KB_Mac},
    {QKeySequence::Forward,                 1,          Qt::CTRL | Qt::Key_BracketRight,        QApplicationPrivate::KB_Mac},
    {QKeySequence::PreviousChild,           1,          Qt::CTRL | Qt::Key_BraceLeft,           QApplicationPrivate::KB_Mac},
    {QKeySequence::NextChild,               1,          Qt::CTRL | Qt::Key_BraceRight,          QApplicationPrivate::KB_Mac},
    {QKeySequence::NextChild,               1,          Qt::CTRL | Qt::Key_Tab,                 QApplicationPrivate::KB_Win | QApplicationPrivate::KB_X11},
    {QKeySequence::NextChild,               0,          Qt::CTRL | Qt::Key_Tab,                 QApplicationPrivate::KB_Mac}, //different priority from above
    {QKeySequence::DeleteStartOfWord,       0,          Qt::CTRL | Qt::Key_Backspace,           QApplicationPrivate::KB_X11 | QApplicationPrivate::KB_Win},
    {QKeySequence::Copy,                    0,          Qt::CTRL | Qt::Key_Insert,              QApplicationPrivate::KB_X11 | QApplicationPrivate::KB_Win}, 
    {QKeySequence::DeleteEndOfWord,         0,          Qt::CTRL | Qt::Key_Delete,              QApplicationPrivate::KB_X11 | QApplicationPrivate::KB_Win},
    {QKeySequence::MoveToStartOfDocument,   0,          Qt::CTRL | Qt::Key_Home,                QApplicationPrivate::KB_Win | QApplicationPrivate::KB_X11},
    {QKeySequence::MoveToEndOfDocument,     0,          Qt::CTRL | Qt::Key_End,                 QApplicationPrivate::KB_Win | QApplicationPrivate::KB_X11},
    {QKeySequence::Back,                    0,          Qt::CTRL | Qt::Key_Left,                QApplicationPrivate::KB_Mac}, 
    {QKeySequence::MoveToPreviousWord,      0,          Qt::CTRL | Qt::Key_Left,                QApplicationPrivate::KB_Win | QApplicationPrivate::KB_X11}, 
    {QKeySequence::MoveToStartOfLine,       0,          Qt::CTRL | Qt::Key_Left,                QApplicationPrivate::KB_Mac },
    {QKeySequence::MoveToStartOfDocument,   1,          Qt::CTRL | Qt::Key_Up,                  QApplicationPrivate::KB_Mac},
    {QKeySequence::Forward,                 0,          Qt::CTRL | Qt::Key_Right,               QApplicationPrivate::KB_Mac}, 
    {QKeySequence::MoveToEndOfLine,         0,          Qt::CTRL | Qt::Key_Right,               QApplicationPrivate::KB_Mac },
    {QKeySequence::MoveToNextWord,          0,          Qt::CTRL | Qt::Key_Right,               QApplicationPrivate::KB_Win | QApplicationPrivate::KB_X11},
    {QKeySequence::MoveToEndOfDocument,     1,          Qt::CTRL | Qt::Key_Down,                QApplicationPrivate::KB_Mac},
    {QKeySequence::Close,                   1,          Qt::CTRL | Qt::Key_F4,                  QApplicationPrivate::KB_Win},
    {QKeySequence::Close,                   0,          Qt::CTRL | Qt::Key_F4,                  QApplicationPrivate::KB_Mac},
    {QKeySequence::NextChild,               0,          Qt::CTRL | Qt::Key_F6,                  QApplicationPrivate::KB_Win},
    {QKeySequence::FindPrevious,            1,          Qt::CTRL | Qt::SHIFT | Qt::Key_G,       QApplicationPrivate::KB_Gnome | QApplicationPrivate::KB_Mac},
    {QKeySequence::FindPrevious,            0,          Qt::CTRL | Qt::SHIFT | Qt::Key_G,       QApplicationPrivate::KB_Win},
    {QKeySequence::AddTab,                  1,          Qt::CTRL | Qt::SHIFT | Qt::Key_N,       QApplicationPrivate::KB_KDE},
    {QKeySequence::Redo,                    0,          Qt::CTRL | Qt::SHIFT | Qt::Key_Z,       QApplicationPrivate::KB_Win | QApplicationPrivate::KB_X11},
    {QKeySequence::Redo,                    1,          Qt::CTRL | Qt::SHIFT | Qt::Key_Z,       QApplicationPrivate::KB_Mac}, //different priority from above
    {QKeySequence::PreviousChild,           1,          Qt::CTRL | Qt::SHIFT | Qt::Key_Tab,     QApplicationPrivate::KB_Win | QApplicationPrivate::KB_X11},
    {QKeySequence::PreviousChild,           0,          Qt::CTRL | Qt::SHIFT | Qt::Key_Tab,     QApplicationPrivate::KB_Mac },//different priority from above 
    {QKeySequence::SelectStartOfDocument,   0,          Qt::CTRL | Qt::SHIFT | Qt::Key_Home,    QApplicationPrivate::KB_Win | QApplicationPrivate::KB_X11},
    {QKeySequence::SelectEndOfDocument,     0,          Qt::CTRL | Qt::SHIFT | Qt::Key_End,     QApplicationPrivate::KB_Win | QApplicationPrivate::KB_X11},
    {QKeySequence::SelectPreviousWord,      0,          Qt::CTRL | Qt::SHIFT | Qt::Key_Left,    QApplicationPrivate::KB_Win | QApplicationPrivate::KB_X11},
    {QKeySequence::SelectStartOfLine,       1,          Qt::CTRL | Qt::SHIFT | Qt::Key_Left,    QApplicationPrivate::KB_Mac },
    {QKeySequence::SelectStartOfDocument,   1,          Qt::CTRL | Qt::SHIFT | Qt::Key_Up,      QApplicationPrivate::KB_Mac},
    {QKeySequence::SelectNextWord,          0,          Qt::CTRL | Qt::SHIFT | Qt::Key_Right,   QApplicationPrivate::KB_Win | QApplicationPrivate::KB_X11},
    {QKeySequence::SelectEndOfLine,         1,          Qt::CTRL | Qt::SHIFT | Qt::Key_Right,   QApplicationPrivate::KB_Mac },
    {QKeySequence::SelectEndOfDocument,     1,          Qt::CTRL | Qt::SHIFT | Qt::Key_Down,    QApplicationPrivate::KB_Mac},
    {QKeySequence::PreviousChild,           0,          Qt::CTRL | Qt::SHIFT | Qt::Key_F6,      QApplicationPrivate::KB_Win},
    {QKeySequence::Undo,                    0,          Qt::ALT  | Qt::Key_Backspace,           QApplicationPrivate::KB_Win},
    {QKeySequence::DeleteStartOfWord,       0,          Qt::ALT  | Qt::Key_Backspace,           QApplicationPrivate::KB_Mac},
    {QKeySequence::DeleteEndOfWord,         0,          Qt::ALT  | Qt::Key_Delete,              QApplicationPrivate::KB_Mac},    
    {QKeySequence::Back,                    1,          Qt::ALT  | Qt::Key_Left,                QApplicationPrivate::KB_Win | QApplicationPrivate::KB_X11},
    {QKeySequence::MoveToPreviousWord,      0,          Qt::ALT  | Qt::Key_Left,                QApplicationPrivate::KB_Mac},
    {QKeySequence::MoveToStartOfBlock,      0,          Qt::ALT  | Qt::Key_Up,                  QApplicationPrivate::KB_Mac}, //mac only
    {QKeySequence::MoveToNextWord,          0,          Qt::ALT  | Qt::Key_Right,               QApplicationPrivate::KB_Mac},
    {QKeySequence::Forward,                 1,          Qt::ALT  | Qt::Key_Right,               QApplicationPrivate::KB_Win | QApplicationPrivate::KB_X11},
    {QKeySequence::MoveToEndOfBlock,        0,          Qt::ALT  | Qt::Key_Down,                QApplicationPrivate::KB_Mac}, //mac only
    {QKeySequence::MoveToPreviousPage,      0,          Qt::ALT  | Qt::Key_PageUp,              QApplicationPrivate::KB_Mac },
    {QKeySequence::MoveToNextPage,          0,          Qt::ALT  | Qt::Key_PageDown,            QApplicationPrivate::KB_Mac },
    {QKeySequence::Redo,                    0,          Qt::ALT  | Qt::SHIFT | Qt::Key_Backspace,QApplicationPrivate::KB_Win},
    {QKeySequence::SelectPreviousWord,      0,          Qt::ALT  | Qt::SHIFT | Qt::Key_Left,    QApplicationPrivate::KB_Mac},
    {QKeySequence::SelectStartOfBlock,      0,          Qt::ALT  | Qt::SHIFT | Qt::Key_Up,      QApplicationPrivate::KB_Mac}, //mac only
    {QKeySequence::SelectNextWord,          0,          Qt::ALT  | Qt::SHIFT | Qt::Key_Right,   QApplicationPrivate::KB_Mac},
    {QKeySequence::SelectEndOfBlock,        0,          Qt::ALT  | Qt::SHIFT | Qt::Key_Down,    QApplicationPrivate::KB_Mac}, //mac only
    {QKeySequence::MoveToStartOfBlock,      0,          Qt::META | Qt::Key_A,                   QApplicationPrivate::KB_Mac},
    {QKeySequence::Delete,                  0,          Qt::META | Qt::Key_D,                   QApplicationPrivate::KB_Mac},
    {QKeySequence::MoveToEndOfBlock,        0,          Qt::META | Qt::Key_E,                   QApplicationPrivate::KB_Mac},
    {QKeySequence::MoveToStartOfLine,       0,          Qt::META | Qt::Key_Left,                QApplicationPrivate::KB_Mac},
    {QKeySequence::MoveToPreviousPage,      0,          Qt::META | Qt::Key_Up,                  QApplicationPrivate::KB_Mac},
    {QKeySequence::MoveToEndOfLine,         0,          Qt::META | Qt::Key_Right,               QApplicationPrivate::KB_Mac},
    {QKeySequence::MoveToNextPage,          0,          Qt::META | Qt::Key_Down,                QApplicationPrivate::KB_Mac},
    {QKeySequence::MoveToPreviousPage,      0,          Qt::META | Qt::Key_PageUp,              QApplicationPrivate::KB_Mac},
    {QKeySequence::MoveToNextPage,          0,          Qt::META | Qt::Key_PageDown,            QApplicationPrivate::KB_Mac},
    {QKeySequence::SelectStartOfLine,       0,          Qt::META | Qt::SHIFT | Qt::Key_Left,    QApplicationPrivate::KB_Mac},
    {QKeySequence::SelectEndOfLine,         0,          Qt::META | Qt::SHIFT | Qt::Key_Right,   QApplicationPrivate::KB_Mac}    
};

const uint QKeySequencePrivate::numberOfKeyBindings = sizeof(QKeySequencePrivate::keyBindings)/(sizeof(QKeyBinding));


QKeySequence::QKeySequence(StandardKey key)
{
    const QList <QKeySequence> bindings = keyBindings(key);
    //pick only the first/primary shortcut from current bindings
    if (bindings.size() > 0) {
        d = bindings.first().d; 
        d->ref.ref();
    }
    else
        d = new QKeySequencePrivate();
}


QKeySequence::QKeySequence()
{
    d = new QKeySequencePrivate();
}

QKeySequence::QKeySequence(const QString &key)
{
    d = new QKeySequencePrivate();
    assign(key);
}

QKeySequence::QKeySequence(int k1, int k2, int k3, int k4)
{
    d = new QKeySequencePrivate();
    d->key[0] = k1;
    d->key[1] = k2;
    d->key[2] = k3;
    d->key[3] = k4;
}

QKeySequence::QKeySequence(const QKeySequence& keysequence)
    : d(keysequence.d)
{
    d->ref.ref();
}

QList<QKeySequence> QKeySequence::keyBindings(StandardKey key)
{
    uint platform = QApplicationPrivate::currentPlatform();
    QList <QKeySequence> list;
    for (uint i = 0; i < QKeySequencePrivate::numberOfKeyBindings ; ++i) {
        QKeyBinding keyBinding = QKeySequencePrivate::keyBindings[i];
        if (keyBinding.standardKey == key && (keyBinding.platform & platform))
            if (keyBinding.priority > 0) 
                list.prepend(QKeySequence(QKeySequencePrivate::keyBindings[i].shortcut));    
            else 
                list.append(QKeySequence(QKeySequencePrivate::keyBindings[i].shortcut));    
    }
    return list;
}

QKeySequence::~QKeySequence()
{
    if (!d->ref.deref())
        delete d;
}

void QKeySequence::setKey(int key, int index)
{
    Q_ASSERT_X(index >= 0 && index < 4, "QKeySequence::setKey", "index out of range");
    qAtomicDetach(d);
    d->key[index] = key;
}

uint QKeySequence::count() const
{
    if (!d->key[0])
        return 0;
    if (!d->key[1])
        return 1;
    if (!d->key[2])
        return 2;
    if (!d->key[3])
        return 3;
    return 4;
}


bool QKeySequence::isEmpty() const
{
    return !d->key[0];
}


QKeySequence QKeySequence::mnemonic(const QString &text)
{
    if(qt_sequence_no_mnemonics)
  return QKeySequence();

    int p = 0;
    while (p >= 0) {
        p = text.indexOf(QLatin1Char('&'), p) + 1;
        if (p <= 0 || p >= (int)text.length())
            break;
        if (text.at(p) != QLatin1Char('&')) {
            QChar c = text.at(p);
            if (c.isPrint()) {
                c = c.toUpper();
                return QKeySequence(c.unicode() + Qt::ALT);
            }
        }
        p++;
    }
    return QKeySequence();
}

int QKeySequence::assign(const QString &ks)
{
    QString keyseq = ks;
    QString part;
    int n = 0;
    int p = 0, diff = 0;

    // Run through the whole string, but stop
    // if we have 4 keys before the end.
    while (keyseq.length() && n < 4) {
        // We MUST use something to separate each sequence, and space
        // does not cut it, since some of the key names have space
        // in them.. (Let's hope no one translate with a comma in it:)
        p = keyseq.indexOf(QLatin1Char(','));
        if (-1 != p) {
            if (p == keyseq.count() - 1) { // Last comma 'Ctrl+,'
                p = -1;
            } else {
                if (QLatin1Char(',') == keyseq.at(p+1)) // e.g. 'Ctrl+,, Shift+,,'
                    p++;
                if (QLatin1Char(' ') == keyseq.at(p+1)) { // Space after comma
                    diff = 1;
                    p++;
                } else {
                    diff = 0;
                }
            }
        }
        part = keyseq.left(-1 == p ? keyseq.length() : p - diff);
        keyseq = keyseq.right(-1 == p ? 0 : keyseq.length() - (p + 1));
        d->key[n] = decodeString(part);
        ++n;
    }
    return n;
}

struct QModifKeyName {
    QModifKeyName() { }
    QModifKeyName(int q, QChar n) : qt_key(q), name(n) { }
    QModifKeyName(int q, const QString &n) : qt_key(q), name(n) { }
    int qt_key;
    QString name;
};

Q_GLOBAL_STATIC(QList<QModifKeyName>, globalModifs)
Q_GLOBAL_STATIC(QList<QModifKeyName>, globalPortableModifs)

int QKeySequence::decodeString(const QString &str)
{
    return QKeySequencePrivate::decodeString(str, NativeText);
}

int QKeySequencePrivate::decodeString(const QString &str, QKeySequence::SequenceFormat format)
{
    int ret = 0;
    QString accel = str.toLower();
    bool nativeText = (format == QKeySequence::NativeText);

    QList<QModifKeyName> *gmodifs;
    if (nativeText) {
        gmodifs = globalModifs();
        if (gmodifs->isEmpty()) {
#ifdef QMAC_CTRL
            *gmodifs << QModifKeyName(Qt::CTRL, QMAC_CTRL);
#endif
#ifdef QMAC_ALT
            *gmodifs << QModifKeyName(Qt::ALT, QMAC_ALT);
#endif
#ifdef QMAC_META
            *gmodifs << QModifKeyName(Qt::META, QMAC_META);
#endif
#ifdef QMAC_SHIFT
            *gmodifs << QModifKeyName(Qt::SHIFT, QMAC_SHIFT);
#endif
            *gmodifs << QModifKeyName(Qt::CTRL, QLatin1String("ctrl+"))
                     << QModifKeyName(Qt::SHIFT, QLatin1String("shift+"))
                     << QModifKeyName(Qt::ALT, QLatin1String("alt+"))
                     << QModifKeyName(Qt::META, QLatin1String("meta+"));
        }
    } else {
        gmodifs = globalPortableModifs();
        if (gmodifs->isEmpty()) {
            *gmodifs << QModifKeyName(Qt::CTRL, QLatin1String("ctrl+"))
                     << QModifKeyName(Qt::SHIFT, QLatin1String("shift+"))
                     << QModifKeyName(Qt::ALT, QLatin1String("alt+"))
                     << QModifKeyName(Qt::META, QLatin1String("meta+"));
        }
    }
    if (!gmodifs) return ret;


    QList<QModifKeyName> modifs;
    if (nativeText) {
        modifs << QModifKeyName(Qt::CTRL, QShortcut::tr("Ctrl").toLower().append(QLatin1Char('+')))
               << QModifKeyName(Qt::SHIFT, QShortcut::tr("Shift").toLower().append(QLatin1Char('+')))
               << QModifKeyName(Qt::ALT, QShortcut::tr("Alt").toLower().append(QLatin1Char('+')))
               << QModifKeyName(Qt::META, QShortcut::tr("Meta").toLower().append(QLatin1Char('+')));
    }
    modifs += *gmodifs; // Test non-translated ones last

    QString sl = accel;
#ifdef Q_WS_MAC
    for (int i = 0; i < modifs.size(); ++i) {
        const QModifKeyName &mkf = modifs.at(i);
        if (sl.contains(mkf.name)) {
            ret |= mkf.qt_key;
            accel.remove(mkf.name);
            sl = accel;
        }
    }
#else
    int i = 0;
    int lastI = 0;
    while ((i = sl.indexOf('+', i + 1)) != -1) {
        const QString sub = sl.mid(lastI, i - lastI + 1);
        // Just shortcut the check here if we only have one character.
        // Rational: A modifier will contain the name AND +, so longer than 1, a length of 1 is just
        // the remaining part of the shortcut (ei. The 'C' in "Ctrl+C"), so no need to check that.
        if (sub.length() > 1) {
            for (int j = 0; j < modifs.size(); ++j) {
                const QModifKeyName &mkf = modifs.at(j);
                if (sub == mkf.name) {
                    ret |= mkf.qt_key;
                    break; // Shortcut, since if we find an other it would/should just be a dup
                }
            }
        }
        lastI = i + 1;
    }
#endif

    int p = accel.lastIndexOf(QLatin1Char('+'), str.length() - 2); // -2 so that Ctrl++ works
    if(p > 0)
        accel = accel.mid(p + 1);

    int fnum = 0;
    if (accel.length() == 1) {
        ret |= accel[0].toUpper().unicode();
    } else if (accel[0] == QLatin1Char('f') && (fnum = accel.mid(1).toInt()) && (fnum >= 1) && (fnum <= 35)) {
        ret |= Qt::Key_F1 + fnum - 1;
    } else {
        // For NativeText, check the traslation table first,
        // if we don't find anything then try it out with just the untranlated stuff.
        // PortableText will only try the untranlated table.
        bool found = false;
        for (int tran = 0; tran < 2; ++tran) {
            if (!nativeText)
                ++tran;
            for (int i = 0; keyname[i].name; ++i) {
                QString keyName(tran == 0
                                ? QShortcut::tr(keyname[i].name)
                                : QString::fromLatin1(keyname[i].name));
                if (accel == keyName.toLower()) {
                    ret |= keyname[i].key;
                    found = true;
                    break;
                }
            }
            if (found)
                break;
        }
    }
    return ret;
}

QString QKeySequence::encodeString(int key)
{
    return QKeySequencePrivate::encodeString(key, NativeText);
}

static inline void addKey(QString &str, const QString &theKey, QKeySequence::SequenceFormat format)
{
    if (!str.isEmpty())
        str += (format == QKeySequence::NativeText) ? QShortcut::tr("+")
                                                    : QString(QLatin1String("+"));
    str += theKey;
}

QString QKeySequencePrivate::encodeString(int key, QKeySequence::SequenceFormat format)
{
    bool nativeText = (format == QKeySequence::NativeText);
    QString s;
#if defined(Q_WS_MAC)
    if (nativeText) {
        // On MAC the order is Meta, Alt, Shift, Control.
        if ((key & Qt::META) == Qt::META)
            s += QMAC_META;
        if ((key & Qt::ALT) == Qt::ALT)
            s += QMAC_ALT;
        if ((key & Qt::SHIFT) == Qt::SHIFT)
            s += QMAC_SHIFT;
        if ((key & Qt::CTRL) == Qt::CTRL)
            s += QMAC_CTRL;
    } else
#endif
    {
        // On other systems the order is Meta, Control, Alt, Shift
        if ((key & Qt::META) == Qt::META)
            s = nativeText ? QShortcut::tr("Meta") : QString(QLatin1String("Meta"));
        if ((key & Qt::CTRL) == Qt::CTRL)
            addKey(s, nativeText ? QShortcut::tr("Ctrl") : QString(QLatin1String("Ctrl")), format);
        if ((key & Qt::ALT) == Qt::ALT)
            addKey(s, nativeText ? QShortcut::tr("Alt") : QString(QLatin1String("Alt")), format);
        if ((key & Qt::SHIFT) == Qt::SHIFT)
            addKey(s, nativeText ? QShortcut::tr("Shift") : QString(QLatin1String("Shift")), format);
    }


    key &= ~(Qt::ShiftModifier | Qt::ControlModifier | Qt::AltModifier | Qt::MetaModifier);
    QString p;

    if (key && key < Qt::Key_Escape && key != Qt::Key_Space) {
        if (key < 0x10000) {
            p = QChar(key & 0xffff).toUpper();
        } else {
            p = QChar((key-0x10000)/0x400+0xd800);
            p += QChar((key-0x10000)%400+0xdc00);
        }
    } else if (key >= Qt::Key_F1 && key <= Qt::Key_F35) {
            p = nativeText ? QShortcut::tr("F%1").arg(key - Qt::Key_F1 + 1)
                           : QString(QLatin1String("F%1")).arg(key - Qt::Key_F1 + 1);
    } else if (key) {
        int i=0;
        while (keyname[i].name) {
            if (key == keyname[i].key) {
                p = nativeText ? QShortcut::tr(keyname[i].name)
                               : QString(QLatin1String(keyname[i].name));
                break;
            }
            ++i;
        }
        // If we can't find the actual translatable keyname,
        // fall back on the unicode representation of it...
        // Or else characters like Qt::Key_aring may not get displayed
        // (Really depends on you locale)
        if (!keyname[i].name) {
            if (key < 0x10000) {
                p = QChar(key & 0xffff).toUpper();
            } else {
                p = QChar((key-0x10000)/0x400+0xd800);
                p += QChar((key-0x10000)%400+0xdc00);
            }
        }
    }

#ifdef Q_WS_MAC
    if (nativeText)
        s += p;
    else
#endif
    addKey(s, p, format);
    return s;
}
QKeySequence::SequenceMatch QKeySequence::matches(const QKeySequence &seq) const
{
    uint userN = count(),
          seqN = seq.count();

    if (userN > seqN)
        return NoMatch;

    // If equal in length, we have a potential ExactMatch sequence,
    // else we already know it can only be partial.
    SequenceMatch match = (userN == seqN ? ExactMatch : PartialMatch);

    for (uint i = 0; i < userN; ++i) {
        int userKey = (*this)[i],
            sequenceKey = seq[i];
        if (userKey != sequenceKey)
            return NoMatch;
    }
    return match;
}


QKeySequence::operator QString() const
{
    return QKeySequence::toString(QKeySequence::NativeText);
}

QKeySequence::operator QVariant() const
{
    return QVariant(QVariant::KeySequence, this);
}

QKeySequence::operator int () const
{
    if (1 <= count())
        return d->key[0];
    return 0;
}


int QKeySequence::operator[](uint index) const
{
    Q_ASSERT_X(index < 4, "QKeySequence::operator[]", "index out of range");
    return d->key[index];
}


QKeySequence &QKeySequence::operator=(const QKeySequence &other)
{
    qAtomicAssign(d, other.d);
    return *this;
}

bool QKeySequence::operator==(const QKeySequence &other) const
{
    return (d->key[0] == other.d->key[0] &&
            d->key[1] == other.d->key[1] &&
            d->key[2] == other.d->key[2] &&
            d->key[3] == other.d->key[3]);
}


bool QKeySequence::operator< (const QKeySequence &other) const
{
    for (int i = 0; i < 4; ++i)
        if (d->key[i] != other.d->key[i])
            return d->key[i] < other.d->key[i];
    return false;
}

bool QKeySequence::isDetached() const
{
    return d->ref == 1;
}

QString QKeySequence::toString(SequenceFormat format) const
{
    QString finalString;
    // A standard string, with no translation or anything like that. In some ways it will
    // look like our latin case on Windows and X11
    int end = count();
    for (int i = 0; i < end; ++i) {
        finalString += d->encodeString(d->key[i], format);
        finalString += QLatin1String(", ");
    }
    finalString.truncate(finalString.length() - 2);
    return finalString;
}

QKeySequence QKeySequence::fromString(const QString &str, SequenceFormat format)
{
    QStringList sl = str.split(QLatin1String(", "));
    int keys[4] = {0, 0, 0, 0};
    int total = qMin(sl.count(), 4);
    for (int i = 0; i < total; ++i)
        keys[i] = QKeySequencePrivate::decodeString(sl[i], format);
    return QKeySequence(keys[0], keys[1], keys[2], keys[3]);
}

/*****************************************************************************
  QKeySequence stream functions
 *****************************************************************************/
#if !defined(QT_NO_DATASTREAM)

QDataStream &operator<<(QDataStream &s, const QKeySequence &keysequence)
{
    QList<quint32> list;
    list << keysequence.d->key[0];

    if (s.version() >= 5 && keysequence.count() > 1) {
        list << keysequence.d->key[1];
        list << keysequence.d->key[2];
        list << keysequence.d->key[3];
    }
    s << list;
    return s;
}


QDataStream &operator>>(QDataStream &s, QKeySequence &keysequence)
{
  qAtomicDetach(keysequence.d);
    QList<quint32> list;
    s >> list;
    for (int i = 0; i < 4; ++i)
        keysequence.d->key[i] = list.value(i);
    return s;
}

#endif //QT_NO_DATASTREAM

#ifndef QT_NO_DEBUG_STREAM
QDebug operator<<(QDebug dbg, const QKeySequence &p)
{
#ifndef Q_BROKEN_DEBUG_STREAM
    dbg.nospace() << "QKeySequence(" << p.toString() << ')';
    return dbg.space();
#else
    qWarning("This compiler doesn't support streaming QKeySequence to QDebug");
    return dbg;
    Q_UNUSED(p);
#endif
}
#endif

#endif // QT_NO_SHORTCUT

---