/****************************************************************************+
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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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#include "qwsinputcontext_p.h"+
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#include "qinputcontext_p.h"+
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#include "qwsdisplay_qws.h"+
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#include "qwsevent_qws.h"+
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#include "private/qwscommand_qws_p.h"+
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#include "qwindowsystem_qws.h"+
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#include "qevent.h"+
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#include "qtextformat.h"+
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+
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#include <qbuffer.h>+
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+
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#include <qdebug.h>+
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+
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#ifndef QT_NO_QWS_INPUTMETHODS+
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+
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QT_BEGIN_NAMESPACE+
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+
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static QWidget* activeWidget = 0;+
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+
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//#define EXTRA_DEBUG+
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+
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QWSInputContext::QWSInputContext(QObject *parent)+
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    :QInputContext(parent)+
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{+
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}+
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+
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void QWSInputContext::reset()+
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{+
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    QPaintDevice::qwsDisplay()->resetIM();+
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}+
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+
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+
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void QWSInputContext::setFocusWidget( QWidget *w )+
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{+
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    QWidget *oldFocus = focusWidget();+
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    if (oldFocus == w)+
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        return;+
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+
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    if (w) {+
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        QWSInputContext::updateImeStatus(w, true);+
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    } else {+
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        if (oldFocus)+
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            QWSInputContext::updateImeStatus(oldFocus, false);+
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    }+
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+
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    if (oldFocus) {+
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        QWidget *tlw = oldFocus->window();+
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        int winid = tlw->internalWinId();+
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+
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        int widgetid = oldFocus->internalWinId();+
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        QPaintDevice::qwsDisplay()->sendIMUpdate(QWSInputMethod::FocusOut, winid, widgetid);+
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    }+
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+
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    QInputContext::setFocusWidget(w);+
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+
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    if (!w)+
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        return;+
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+
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    QWidget *tlw = w->window();+
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    int winid = tlw->winId();+
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+
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    int widgetid = w->winId();+
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    QPaintDevice::qwsDisplay()->sendIMUpdate(QWSInputMethod::FocusIn, winid, widgetid);+
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+
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    //setfocus ???+
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+
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    update();+
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}+
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+
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+
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void QWSInputContext::widgetDestroyed(QWidget *w)+
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{+
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    if (w == QT_PREPEND_NAMESPACE(activeWidget))+
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        QT_PREPEND_NAMESPACE(activeWidget) = 0;+
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    QInputContext::widgetDestroyed(w);+
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}+
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+
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void QWSInputContext::update()+
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{+
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    QWidget *w = focusWidget();+
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    if (!w)+
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        return;+
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+
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    QWidget *tlw = w->window();+
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    int winid = tlw->winId();+
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+
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    int widgetid = w->winId();+
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    QPaintDevice::qwsDisplay()->sendIMUpdate(QWSInputMethod::Update, winid, widgetid);+
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+
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}+
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+
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void QWSInputContext::mouseHandler( int x, QMouseEvent *event)+
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{+
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    if (event->type() == QEvent::MouseButtonPress || event->type() == QEvent::MouseButtonRelease)+
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        QPaintDevice::qwsDisplay()->sendIMMouseEvent( x, event->type() == QEvent::MouseButtonPress );+
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}+
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+
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QWidget *QWSInputContext::activeWidget()+
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{+
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    return QT_PREPEND_NAMESPACE(activeWidget);+
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}+
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+
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+
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bool QWSInputContext::isComposing() const+
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{+
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    return QT_PREPEND_NAMESPACE(activeWidget) != 0;+
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}+
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+
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bool QWSInputContext::translateIMQueryEvent(QWidget *w, const QWSIMQueryEvent *e)+
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{+
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    Qt::InputMethodQuery type = static_cast<Qt::InputMethodQuery>(e->simpleData.property);+
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    QVariant result = w->inputMethodQuery(type);+
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    QWidget *tlw = w->window();+
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    int winId = tlw->winId();+
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+
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    if ( type == Qt::ImMicroFocus ) {+
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        // translate to relative to tlw+
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        QRect mf = result.toRect();+
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        mf.moveTopLeft(w->mapTo(tlw,mf.topLeft()));+
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        result = mf;+
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    }+
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+
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    QPaintDevice::qwsDisplay()->sendIMResponse(winId, e->simpleData.property, result);+
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+
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    return false;+
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}+
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+
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bool QWSInputContext::translateIMInitEvent(const QWSIMInitEvent *e)+
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{+
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    Q_UNUSED(e);+
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    qDebug("### QWSInputContext::translateIMInitEvent not implemented ###");+
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    return false;+
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}+
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+
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bool QWSInputContext::translateIMEvent(QWidget *w, const QWSIMEvent *e)+
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{+
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    QDataStream stream(e->streamingData);+
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    QString preedit;+
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    QString commit;+
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+
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    stream >> preedit;+
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    stream >> commit;+
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+
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    if (preedit.isEmpty() && QT_PREPEND_NAMESPACE(activeWidget))+
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        w = QT_PREPEND_NAMESPACE(activeWidget);+
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+
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    QInputContext *qic = w->inputContext();+
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    if (!qic)+
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        return false;+
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+
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    QList<QInputMethodEvent::Attribute> attrs;+
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+
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+
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    while (!stream.atEnd()) {+
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        int type = -1;+
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        int start = -1;+
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        int length = -1;+
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        QVariant data;+
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        stream >> type >> start >> length >> data;+
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        if (stream.status() != QDataStream::Ok) {+
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            qWarning("corrupted QWSIMEvent");+
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            //qic->reset(); //???+
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            return false;+
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        }+
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        if (type == QInputMethodEvent::TextFormat)+
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            data = qic->standardFormat(static_cast<QInputContext::StandardFormat>(data.toInt()));+
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        attrs << QInputMethodEvent::Attribute(static_cast<QInputMethodEvent::AttributeType>(type), start, length, data);+
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    }+
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#ifdef EXTRA_DEBUG+
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    qDebug() << "preedit" << preedit << "len" << preedit.length() <<"commit" << commit << "len" << commit.length()+
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             << "n attr" << attrs.count();+
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#endif+
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+
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    if (preedit.isEmpty())+
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        QT_PREPEND_NAMESPACE(activeWidget) = 0;+
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    else+
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        QT_PREPEND_NAMESPACE(activeWidget) = w;+
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+
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+
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    QInputMethodEvent ime(preedit, attrs);+
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    if (!commit.isEmpty() || e->simpleData.replaceLength > 0)+
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        ime.setCommitString(commit, e->simpleData.replaceFrom, e->simpleData.replaceLength);+
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+
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+
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    extern bool qt_sendSpontaneousEvent(QObject *, QEvent *); //qapplication_qws.cpp+
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    qt_sendSpontaneousEvent(w, &ime);+
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+
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    return true;+
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}+
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+
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Q_GUI_EXPORT void (*qt_qws_inputMethodStatusChanged)(QWidget*) = 0;+
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+
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void QWSInputContext::updateImeStatus(QWidget *w, bool hasFocus)+
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{+
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    Q_UNUSED(hasFocus);+
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+
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    if (!w || !qt_qws_inputMethodStatusChanged)+
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        return;+
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    qt_qws_inputMethodStatusChanged(w);+
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}+
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+
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+
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QT_END_NAMESPACE+
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+
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#endif // QT_NO_QWS_INPUTMETHODS+
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