/****************************************************************************+
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**+
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** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the QtGui module of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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+
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#include "qapplication.h"+
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+
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#include <private/qobject_p.h>+
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#include "qkeymapper_p.h"+
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#include <qwidget.h>+
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+
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QT_BEGIN_NAMESPACE+
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+
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/*!+
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    \class QKeyMapper+
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    \since 4.2+
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    \internal+
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+
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    \sa QObject+
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*/+
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+
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/*!+
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    Constructs a new key mapper.+
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*/+
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QKeyMapper::QKeyMapper()+
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    : QObject(*new QKeyMapperPrivate, 0)+
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{+
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}+
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+
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/*!+
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    Destroys the key mapper.+
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*/+
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QKeyMapper::~QKeyMapper()+
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{+
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}+
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+
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QList<int> QKeyMapper::possibleKeys(QKeyEvent *e)+
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{+
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    QList<int> result;+
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+
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    if (!e->nativeScanCode()) {+
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        if (e->key() && (e->key() != Qt::Key_unknown))+
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            result << int(e->key() + e->modifiers());+
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        else if (!e->text().isEmpty())+
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            result << int(e->text().at(0).unicode() + e->modifiers());+
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        return result;+
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    }+
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+
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    return instance()->d_func()->possibleKeys(e);+
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}+
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+
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extern bool qt_sendSpontaneousEvent(QObject *receiver, QEvent *event); // in qapplication_*.cpp+
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void QKeyMapper::changeKeyboard()+
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{+
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    instance()->d_func()->clearMappings();+
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+
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    // inform all toplevel widgets of the change+
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    QEvent e(QEvent::KeyboardLayoutChange);+
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    QWidgetList list = QApplication::topLevelWidgets();+
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    for (int i = 0; i < list.size(); ++i) {+
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        QWidget *w = list.at(i);+
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        qt_sendSpontaneousEvent(w, &e);+
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    }+
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}+
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+
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Q_GLOBAL_STATIC(QKeyMapper, keymapper)+
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/*!+
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    Returns the pointer to the single instance of QKeyMapper in the application.+
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    If none yet exists, the function ensures that one is created.+
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*/+
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QKeyMapper *QKeyMapper::instance()+
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{+
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    return keymapper();+
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}+
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+
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QKeyMapperPrivate *qt_keymapper_private()+
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{+
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    return QKeyMapper::instance()->d_func();+
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}+
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+
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QT_END_NAMESPACE+
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