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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Virtual Keyboard module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL$
** 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 The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef PINYINDECODERSERVICE_H
#define PINYINDECODERSERVICE_H
#include <QObject>
namespace QtVirtualKeyboard {
class PinyinDecoderService : public QObject
{
Q_OBJECT
Q_DISABLE_COPY(PinyinDecoderService)
explicit PinyinDecoderService(QObject *parent = 0);
public:
~PinyinDecoderService();
static PinyinDecoderService *getInstance();
bool init();
void setUserDictionary(bool enabled);
bool isUserDictionaryEnabled() const;
void setLimits(int maxSpelling, int maxHzsLen);
int search(const QString &spelling);
int deleteSearch(int pos, bool isPosInSpellingId, bool clearFixedInThisStep);
void resetSearch();
QString pinyinString(bool decoded);
int pinyinStringLength(bool decoded);
QVector<int> spellingStartPositions();
QString candidateAt(int index);
QList<QString> fetchCandidates(int index, int count, int sentFixedLen);
int chooceCandidate(int index);
int cancelLastChoice();
int fixedLength();
void flushCache();
QList<QString> predictionList(const QString &history);
private:
static QScopedPointer<PinyinDecoderService> _instance;
bool initDone;
};
} // namespace QtVirtualKeyboard
#endif // PINYINDECODERSERVICE_H
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