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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qwsinputcontext_p.h"
#include "qinputcontext_p.h"
#include "qwsdisplay_qws.h"
#include "qwsevent_qws.h"
#include "private/qwscommand_qws_p.h"
#include "qwindowsystem_qws.h"
#include "qevent.h"
#include "qtextformat.h"
#include <qbuffer.h>
#include <qdebug.h>
#ifndef QT_NO_QWS_INPUTMETHODS
QT_BEGIN_NAMESPACE
static QWidget* activeWidget = 0;
//#define EXTRA_DEBUG
QWSInputContext::QWSInputContext(QObject *parent)
:QInputContext(parent)
{
}
void QWSInputContext::reset()
{
QPaintDevice::qwsDisplay()->resetIM();
}
void QWSInputContext::setFocusWidget( QWidget *w )
{
QWidget *oldFocus = focusWidget();
if (oldFocus == w)
return;
if (w) {
QWSInputContext::updateImeStatus(w, true);
} else {
if (oldFocus)
QWSInputContext::updateImeStatus(oldFocus, false);
}
if (oldFocus) {
QWidget *tlw = oldFocus->window();
int winid = tlw->internalWinId();
int widgetid = oldFocus->internalWinId();
QPaintDevice::qwsDisplay()->sendIMUpdate(QWSInputMethod::FocusOut, winid, widgetid);
}
QInputContext::setFocusWidget(w);
if (!w)
return;
QWidget *tlw = w->window();
int winid = tlw->winId();
int widgetid = w->winId();
QPaintDevice::qwsDisplay()->sendIMUpdate(QWSInputMethod::FocusIn, winid, widgetid);
//setfocus ???
update();
}
void QWSInputContext::widgetDestroyed(QWidget *w)
{
if (w == QT_PREPEND_NAMESPACE(activeWidget))
QT_PREPEND_NAMESPACE(activeWidget) = 0;
QInputContext::widgetDestroyed(w);
}
void QWSInputContext::update()
{
QWidget *w = focusWidget();
if (!w)
return;
QWidget *tlw = w->window();
int winid = tlw->winId();
int widgetid = w->winId();
QPaintDevice::qwsDisplay()->sendIMUpdate(QWSInputMethod::Update, winid, widgetid);
}
void QWSInputContext::mouseHandler( int x, QMouseEvent *event)
{
if (event->type() == QEvent::MouseButtonPress || event->type() == QEvent::MouseButtonRelease)
QPaintDevice::qwsDisplay()->sendIMMouseEvent( x, event->type() == QEvent::MouseButtonPress );
}
QWidget *QWSInputContext::activeWidget()
{
return QT_PREPEND_NAMESPACE(activeWidget);
}
bool QWSInputContext::isComposing() const
{
return QT_PREPEND_NAMESPACE(activeWidget) != 0;
}
bool QWSInputContext::translateIMQueryEvent(QWidget *w, const QWSIMQueryEvent *e)
{
Qt::InputMethodQuery type = static_cast<Qt::InputMethodQuery>(e->simpleData.property);
QVariant result = w->inputMethodQuery(type);
QWidget *tlw = w->window();
int winId = tlw->winId();
if ( type == Qt::ImMicroFocus ) {
// translate to relative to tlw
QRect mf = result.toRect();
mf.moveTopLeft(w->mapTo(tlw,mf.topLeft()));
result = mf;
}
QPaintDevice::qwsDisplay()->sendIMResponse(winId, e->simpleData.property, result);
return false;
}
bool QWSInputContext::translateIMInitEvent(const QWSIMInitEvent *e)
{
Q_UNUSED(e);
qDebug("### QWSInputContext::translateIMInitEvent not implemented ###");
return false;
}
bool QWSInputContext::translateIMEvent(QWidget *w, const QWSIMEvent *e)
{
QDataStream stream(e->streamingData);
QString preedit;
QString commit;
stream >> preedit;
stream >> commit;
if (preedit.isEmpty() && QT_PREPEND_NAMESPACE(activeWidget))
w = QT_PREPEND_NAMESPACE(activeWidget);
QInputContext *qic = w->inputContext();
if (!qic)
return false;
QList<QInputMethodEvent::Attribute> attrs;
while (!stream.atEnd()) {
int type = -1;
int start = -1;
int length = -1;
QVariant data;
stream >> type >> start >> length >> data;
if (stream.status() != QDataStream::Ok) {
qWarning("corrupted QWSIMEvent");
//qic->reset(); //???
return false;
}
if (type == QInputMethodEvent::TextFormat)
data = qic->standardFormat(static_cast<QInputContext::StandardFormat>(data.toInt()));
attrs << QInputMethodEvent::Attribute(static_cast<QInputMethodEvent::AttributeType>(type), start, length, data);
}
#ifdef EXTRA_DEBUG
qDebug() << "preedit" << preedit << "len" << preedit.length() <<"commit" << commit << "len" << commit.length()
<< "n attr" << attrs.count();
#endif
if (preedit.isEmpty())
QT_PREPEND_NAMESPACE(activeWidget) = 0;
else
QT_PREPEND_NAMESPACE(activeWidget) = w;
QInputMethodEvent ime(preedit, attrs);
if (!commit.isEmpty() || e->simpleData.replaceLength > 0)
ime.setCommitString(commit, e->simpleData.replaceFrom, e->simpleData.replaceLength);
extern bool qt_sendSpontaneousEvent(QObject *, QEvent *); //qapplication_qws.cpp
qt_sendSpontaneousEvent(w, &ime);
return true;
}
Q_GUI_EXPORT void (*qt_qws_inputMethodStatusChanged)(QWidget*) = 0;
void QWSInputContext::updateImeStatus(QWidget *w, bool hasFocus)
{
Q_UNUSED(hasFocus);
if (!w || !qt_qws_inputMethodStatusChanged)
return;
qt_qws_inputMethodStatusChanged(w);
}
QT_END_NAMESPACE
#endif // QT_NO_QWS_INPUTMETHODS
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