1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2016 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the Qt Virtual Keyboard module of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:GPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. For further 15 ** information use the contact form at https://www.qt.io/contact-us. 16 ** 17 ** GNU General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU 19 ** General Public License version 3 or (at your option) any later version 20 ** approved by the KDE Free Qt Foundation. The licenses are as published by 21 ** the Free Software Foundation and appearing in the file LICENSE.GPL3 22 ** included in the packaging of this file. Please review the following 23 ** information to ensure the GNU General Public License requirements will 24 ** be met: https://www.gnu.org/licenses/gpl-3.0.html. 25 ** 26 ** $QT_END_LICENSE$ 27 ** 28 ****************************************************************************/ 29 30 #ifndef PINYINDECODERSERVICE_H 31 #define PINYINDECODERSERVICE_H 32 33 #include <QObject> 34 35 namespace QtVirtualKeyboard { 36 37 class PinyinDecoderService : public QObject 38 { 39 Q_OBJECT 40 Q_DISABLE_COPY(PinyinDecoderService) 41 explicit PinyinDecoderService(QObject *parent = 0); 42 43 public: 44 ~PinyinDecoderService(); 45 46 static PinyinDecoderService *getInstance(); 47 48 bool init(); 49 void setUserDictionary(bool enabled); 50 bool isUserDictionaryEnabled() const; 51 void setLimits(int maxSpelling, int maxHzsLen); 52 int search(const QString &spelling); 53 int deleteSearch(int pos, bool isPosInSpellingId, bool clearFixedInThisStep); 54 void resetSearch(); 55 QString pinyinString(bool decoded); 56 int pinyinStringLength(bool decoded); 57 QVector<int> spellingStartPositions(); 58 QString candidateAt(int index); 59 QList<QString> fetchCandidates(int index, int count, int sentFixedLen); 60 int chooceCandidate(int index); 61 int cancelLastChoice(); 62 int fixedLength(); 63 void flushCache(); 64 QList<QString> predictionList(const QString &history); 65 66 private: 67 static QScopedPointer<PinyinDecoderService> _instance; 68 bool initDone; 69 }; 70 71 } // namespace QtVirtualKeyboard 72 73 #endif // PINYINDECODERSERVICE_H 74