/****************************************************************************+
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**+
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** Copyright (C) 2010 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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#include "qclipboard.h"+
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+
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#ifndef QT_NO_CLIPBOARD+
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+
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#include "qapplication.h"+
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#include "qbitmap.h"+
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#include "qdatetime.h"+
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#include "qbuffer.h"+
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#include "qwidget.h"+
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#include "qevent.h"+
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+
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#include <qwsdisplay_qws.h>+
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#include <qwsproperty_qws.h>+
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#include <qwsevent_qws.h>+
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+
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QT_BEGIN_NAMESPACE+
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+
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QT_USE_NAMESPACE+
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+
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+
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/*****************************************************************************+
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  Internal QClipboard functions for Qt for Embedded Linux+
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 *****************************************************************************/+
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+
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static const int TextClipboard=424242;+
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static bool init = false;+
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+
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static inline void qwsInitClipboard()+
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{+
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    //### this should go into QWSServer; it only needs to happen once.+
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    if( !init ) {+
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	QPaintDevice::qwsDisplay()->addProperty(0, TextClipboard);+
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	init = true;+
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    }+
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}+
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+
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static QString qwsClipboardText()+
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{+
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    char * data;+
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    int len;+
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    qwsInitClipboard();+
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    if( !QPaintDevice::qwsDisplay()->getProperty(0, TextClipboard, data, len) ) {+
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//        qDebug("Property received: %d bytes", len);+
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    }+
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+
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    QString s((const QChar*)data, len/sizeof(QChar));+
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 //       qDebug("Property received: '%s'", s.toAscii().constData());+
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    delete[] data;+
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    return s;+
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}+
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+
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+
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static void qwsSetClipboardText(const QString& s)+
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{+
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    qwsInitClipboard();+
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  //  qDebug("qwsSetClipboardText( %s )", s.toAscii().data());+
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    int len =  s.length()*sizeof(QChar);+
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    QByteArray ba((const char*)s.unicode(), len);+
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    QPaintDevice::qwsDisplay()->+
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        setProperty(0, TextClipboard, QWSPropertyManager::PropReplace, ba);+
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+
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}+
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+
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class QClipboardData+
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{+
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public:+
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    QClipboardData();+
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   ~QClipboardData();+
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+
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    void setSource(QMimeData* s)+
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    {+
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        if (s == src)+
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            return;+
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        delete src;+
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        src = s;+
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    }+
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    QMimeData* source()+
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        { return src; }+
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#if 0+
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    void addTransferredPixmap(QPixmap pm)+
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        { /* TODO: queue them */+
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            transferred[tindex] = pm;+
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            tindex=(tindex+1)%2;+
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        }+
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    void clearTransfers()+
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        {+
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            transferred[0] = QPixmap();+
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            transferred[1] = QPixmap();+
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        }+
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#endif+
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+
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    void clear();+
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+
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private:+
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    QMimeData* src;+
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+
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#if 0+
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    QPixmap transferred[2];+
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    int tindex;+
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#endif+
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};+
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+
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QClipboardData::QClipboardData()+
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{+
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    src = 0;+
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#if 0+
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    tindex=0;+
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#endif+
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}+
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+
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QClipboardData::~QClipboardData()+
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{+
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    delete src;+
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}+
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+
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void QClipboardData::clear()+
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{+
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    delete src;+
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    src = 0;+
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}+
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+
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+
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static QClipboardData *internalCbData = 0;+
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+
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static void cleanupClipboardData()+
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{+
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    delete internalCbData;+
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    internalCbData = 0;+
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}+
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+
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static QClipboardData *clipboardData()+
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{+
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    if (internalCbData == 0) {+
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        internalCbData = new QClipboardData;+
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        qAddPostRoutine(cleanupClipboardData);+
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    }+
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    return internalCbData;+
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}+
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+
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+
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/*****************************************************************************+
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  QClipboard member functions for FB.+
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 *****************************************************************************/+
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+
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#if 0+
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+
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QString QClipboard::text() const+
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{+
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    return qwsClipboardText();+
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}+
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+
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void QClipboard::setText(const QString &text)+
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{+
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    qwsSetClipboardText(text);+
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}+
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+
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QString QClipboard::text(QString& subtype) const+
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{+
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    QString r;+
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    if (subtype == "plain")+
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        r = text();+
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    return r;+
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}+
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+
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#endif+
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+
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void QClipboard::clear(Mode mode)+
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{+
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    setText(QString(), mode);+
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}+
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+
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+
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bool QClipboard::event(QEvent *e)+
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{+
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    static bool recursionWatch = false;+
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    if (e->type() != QEvent::Clipboard || recursionWatch)+
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        return QObject::event(e);+
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+
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    recursionWatch = true;+
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    QWSPropertyNotifyEvent *event = (QWSPropertyNotifyEvent *)(((QClipboardEvent *)e)->data());+
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    if (event && event->simpleData.state == QWSPropertyNotifyEvent::PropertyNewValue) {+
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	QClipboardData *d = clipboardData();+
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	QString t = qwsClipboardText();+
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	if( (d->source() == 0 && !t.isEmpty()) || (d->source() != 0 && d->source()->text() != t) ) {+
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	    if( !d->source() )+
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		d->setSource(new QMimeData);+
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	    d->source()->setText( t );+
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	    emitChanged(QClipboard::Clipboard);+
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	}+
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    }+
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+
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    recursionWatch = false;+
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    return true;+
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}+
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+
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const QMimeData* QClipboard::mimeData(Mode mode) const+
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{+
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    if (mode != Clipboard) return 0;+
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+
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    QClipboardData *d = clipboardData();+
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    // Try and get data from QWSProperty if no mime data has been set on us.+
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    if( !d->source() ) {+
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	QString t = qwsClipboardText();+
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	if( !t.isEmpty() ) {+
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	    QMimeData* nd = new QMimeData;+
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	    nd->setText( t );+
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	    d->setSource( nd );+
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	}+
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    }+
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    return d->source();+
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}+
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+
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void QClipboard::setMimeData(QMimeData* src, Mode mode)+
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{+
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    if (mode != Clipboard) return;+
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+
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    QClipboardData *d = clipboardData();+
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+
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    /* Propagate text data to other QWSClients */+
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+
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    QString newText;+
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    if( src != 0 )+
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	newText = src->text();+
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    QString oldText;+
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    if( d->source() != 0 )+
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	oldText = d->source()->text();+
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+
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    d->setSource(src);+
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+
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    if( oldText != newText ) {+
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	if( d->source() == 0 ) {+
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	    qwsSetClipboardText( QString() );+
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	} else {+
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	    qwsSetClipboardText( d->source()->text() );+
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	}+
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    }+
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+
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    emitChanged(QClipboard::Clipboard);+
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}+
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+
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bool QClipboard::supportsMode(Mode mode) const+
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{+
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    return (mode == Clipboard);+
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}+
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+
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bool QClipboard::ownsMode(Mode mode) const+
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{+
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    if (mode == Clipboard)+
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        qWarning("QClipboard::ownsClipboard: UNIMPLEMENTED!");+
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    return false;+
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}+
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+
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void QClipboard::connectNotify( const char * )+
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{+
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}+
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+
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void QClipboard::ownerDestroyed()+
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{+
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}+
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+
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#endif // QT_NO_CLIPBOARD+
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+
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QT_END_NAMESPACE+
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