/* vim:set et ts=4 sts=4: * * libpyzy - The Chinese PinYin and Bopomofo conversion library. * * Copyright (c) 2008-2010 Peng Huang * * This library is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2.1 of the * License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 * USA */ #include #include "PyZyFullPinyinContext.h" #include "PyZyConfig.h" #include "PyZyPinyinParser.h" namespace PyZy { FullPinyinContext::FullPinyinContext (PhoneticContext::Observer *observer) : PinyinContext (observer) { } FullPinyinContext::~FullPinyinContext (void) { } bool FullPinyinContext::insert (char ch) { if (!islower(ch) && ch != '\'') { /* it is not available ch */ return false; } /* is full */ if (G_UNLIKELY (m_text.length () >= MAX_PINYIN_LEN)) return true; m_text.insert (m_cursor++, ch); if (G_UNLIKELY (!(m_config.option & PINYIN_INCOMPLETE_PINYIN))) { updateSpecialPhrases (); updatePinyin (); } else if (G_LIKELY (m_cursor <= m_pinyin_len + 2)) { updateSpecialPhrases (); updatePinyin (); } else { if (updateSpecialPhrases ()) { update (); } else { updatePreeditText (); updateAuxiliaryText (); } } return true; } bool FullPinyinContext::removeCharBefore (void) { if (G_UNLIKELY (m_cursor == 0)) return false; m_cursor --; m_text.erase (m_cursor, 1); updateSpecialPhrases (); updatePinyin (); return true; } bool FullPinyinContext::removeCharAfter (void) { if (G_UNLIKELY (m_cursor == m_text.length ())) return false; m_text.erase (m_cursor, 1); updatePreeditText (); updateAuxiliaryText (); return true; } bool FullPinyinContext::removeWordBefore (void) { if (G_UNLIKELY (m_cursor == 0)) return false; size_t cursor; if (G_UNLIKELY (m_cursor > m_pinyin_len)) { cursor = m_pinyin_len; } else { const Pinyin & p = *m_pinyin.back (); cursor = m_cursor - p.len; m_pinyin_len -= p.len; m_pinyin.pop_back (); } m_text.erase (cursor, m_cursor - cursor); m_cursor = cursor; updateSpecialPhrases (); updatePhraseEditor (); update (); return true; } bool FullPinyinContext::removeWordAfter (void) { if (G_UNLIKELY (m_cursor == m_text.length ())) return false; m_text.erase (m_cursor, -1); updatePreeditText (); updateAuxiliaryText (); return true; } bool FullPinyinContext::moveCursorLeft (void) { if (G_UNLIKELY (m_cursor == 0)) return false; m_cursor --; updateSpecialPhrases (); updatePinyin (); return true; } bool FullPinyinContext::moveCursorRight (void) { if (G_UNLIKELY (m_cursor == m_text.length ())) return false; m_cursor ++; updateSpecialPhrases (); updatePinyin (); return true; } bool FullPinyinContext::moveCursorLeftByWord (void) { if (G_UNLIKELY (m_cursor == 0)) return false; if (G_UNLIKELY (m_cursor > m_pinyin_len)) { m_cursor = m_pinyin_len; return true; } const Pinyin & p = *m_pinyin.back (); m_cursor -= p.len; m_pinyin_len -= p.len; m_pinyin.pop_back (); updateSpecialPhrases (); updatePhraseEditor (); update (); return true; } bool FullPinyinContext::moveCursorRightByWord (void) { return moveCursorToEnd (); } bool FullPinyinContext::moveCursorToBegin (void) { if (G_UNLIKELY (m_cursor == 0)) return false; m_cursor = 0; m_pinyin.clear (); m_pinyin_len = 0; updateSpecialPhrases (); updatePhraseEditor (); update (); return true; } bool FullPinyinContext::moveCursorToEnd (void) { if (G_UNLIKELY (m_cursor == m_text.length ())) return false; m_cursor = m_text.length (); updateSpecialPhrases (); updatePinyin (); return true; } void FullPinyinContext::updatePinyin (void) { if (G_UNLIKELY (m_text.empty ())) { m_pinyin.clear (); m_pinyin_len = 0; } else { m_pinyin_len = PinyinParser::parse ( m_text, // text m_cursor, // text length m_config.option, // option m_pinyin, // result MAX_PHRASE_LEN); // max result length } updatePhraseEditor (); update (); } }; // namespace PyZy