106 lines
2.7 KiB
C++
106 lines
2.7 KiB
C++
/******************************************************************************
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* QSkinny - Copyright (C) 2016 Uwe Rathmann
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* This file may be used under the terms of the QSkinny License, Version 1.0
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*****************************************************************************/
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#include "QskPinyinCompositionModel.h"
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#include "QskInputContext.h"
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#include "pinyinime.h"
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#include <QStringList>
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#include <QDebug>
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class QskPinyinCompositionModel::PrivateData
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{
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public:
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QStringList candidates;
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};
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QskPinyinCompositionModel::QskPinyinCompositionModel( QObject* parent ):
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Inherited( Attributes(), parent ),
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m_data( new PrivateData )
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{
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#if 1
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const char dictionary[] = "XXX/3rdparty/pinyin/data/dict_pinyin.dat";
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#endif
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// ### prevent having 2 calls to im_open_decoder by using a singleton or so
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bool opened = ime_pinyin::im_open_decoder( dictionary, "" );
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if( !opened )
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{
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qWarning() << "could not open pinyin decoder dictionary at" << dictionary;
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}
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}
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QskPinyinCompositionModel::~QskPinyinCompositionModel()
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{
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ime_pinyin::im_close_decoder();
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}
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int QskPinyinCompositionModel::candidateCount() const
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{
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return m_data->candidates.count();
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}
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QString QskPinyinCompositionModel::candidate( int index ) const
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{
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if ( ( index >= 0 ) && ( index < m_data->candidates.count() ) )
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return m_data->candidates[ index ];
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return QString();
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}
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void QskPinyinCompositionModel::resetCandidates()
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{
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ime_pinyin::im_reset_search();
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if ( !m_data->candidates.isEmpty() )
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{
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m_data->candidates.clear();
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Q_EMIT candidatesChanged();
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}
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}
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void QskPinyinCompositionModel::requestCandidates( const QString& text )
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{
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const QByteArray bytes = text.toLatin1();
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size_t count = ime_pinyin::im_search(
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bytes.constData(), size_t( bytes.length() ) );
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if( count <= 0 )
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return;
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const size_t maxCount = 20;
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if ( count > maxCount )
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count = maxCount;
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QVector< QChar > candidateBuffer;
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candidateBuffer.resize( ime_pinyin::kMaxSearchSteps + 1 );
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QStringList candidates;
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candidates.reserve( count );
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for( unsigned int i = 0; i < count; i++ )
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{
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size_t length = static_cast< size_t >( candidateBuffer.length() - 1 );
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const auto buf = reinterpret_cast< ime_pinyin::char16* >( candidateBuffer.data() );
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const bool found = ime_pinyin::im_get_candidate( i, buf, length );
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Q_ASSERT( found );
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candidateBuffer.last() = 0;
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auto candidate = QString( candidateBuffer.data() );
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candidate = QChar( Qt::Key( candidate[0].unicode() ) );
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candidates += candidate;
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}
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m_data->candidates = candidates;
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Q_EMIT candidatesChanged();
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}
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