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/* vim:set et ts=4 sts=4:
*
* ibus-pinyin - The Chinese PinYin engine for IBus
*
* Copyright (c) 2008-2010 Peng Huang <shawn.p.huang@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "PYPhraseEditor.h"
#include "PYConfig.h"
#include "PYDatabase.h"
#include "PYPinyinProperties.h"
#include "PYSimpTradConverter.h"
namespace PY {
PhraseEditor::PhraseEditor (PinyinProperties & props, Config & config)
: m_candidates (32),
m_selected_phrases (8),
m_selected_string (32),
m_candidate_0_phrases (8),
m_pinyin (16),
m_cursor (0),
m_props (props),
m_config (config)
{
}
PhraseEditor::~PhraseEditor (void)
{
}
gboolean
PhraseEditor::update (const PinyinArray &pinyin)
{
/* the size of pinyin must not bigger than MAX_PHRASE_LEN */
g_assert (pinyin.size () <= MAX_PHRASE_LEN);
m_pinyin = pinyin;
m_cursor = 0;
/* FIXME, should not remove all phrases1 */
m_selected_phrases.clear ();
m_selected_string.truncate (0);
updateCandidates ();
return TRUE;
}
gboolean
PhraseEditor::resetCandidate (guint i)
{
Database::instance ().remove (m_candidates[i]);
updateCandidates ();
return TRUE;
}
void
PhraseEditor::commit (void)
{
Database::instance ().commit (m_selected_phrases);
reset ();
}
gboolean
PhraseEditor::selectCandidate (guint i)
{
if (G_UNLIKELY (i >= m_candidates.size ()))
return FALSE;
if (G_LIKELY (i == 0)) {
m_selected_phrases.insert (m_selected_phrases.end (),
m_candidate_0_phrases.begin (),
m_candidate_0_phrases.end ());
if (G_LIKELY (m_props.modeSimp ()))
m_selected_string << m_candidates[0].phrase;
else
SimpTradConverter::simpToTrad (m_candidates[0].phrase, m_selected_string);
m_cursor = m_pinyin.size ();
}
else {
m_selected_phrases.push_back (m_candidates[i]);
if (G_LIKELY (m_props.modeSimp ()))
m_selected_string << m_candidates[i].phrase;
else
SimpTradConverter::simpToTrad (m_candidates[i].phrase, m_selected_string);
m_cursor += m_candidates[i].len;
}
updateCandidates ();
return TRUE;
}
void
PhraseEditor::updateCandidates (void)
{
m_candidates.clear ();
m_query.reset ();
updateTheFirstCandidate ();
if (G_UNLIKELY (m_pinyin.size () == 0))
return;
if (G_LIKELY (m_candidate_0_phrases.size () > 1)) {
Phrase phrase;
phrase.reset ();
for (guint i = 0; i < m_candidate_0_phrases.size (); i++)
phrase += m_candidate_0_phrases[i];
m_candidates.push_back (phrase);
}
m_query.reset (new Query (m_pinyin,
m_cursor,
m_pinyin.size () - m_cursor,
m_config.option ()));
fillCandidates ();
}
void
PhraseEditor::updateTheFirstCandidate (void)
{
guint begin;
guint end;
m_candidate_0_phrases.clear ();
if (G_UNLIKELY (m_pinyin.size () == 0))
return;
begin = m_cursor;
end = m_pinyin.size ();
while (begin != end) {
gint ret;
Query query (m_pinyin,
begin,
end - begin,
m_config.option ());
ret = query.fill (m_candidate_0_phrases, 1);
g_assert (ret == 1);
begin += m_candidate_0_phrases.back ().len;
}
}
gboolean
PhraseEditor::fillCandidates (void)
{
if (G_UNLIKELY (m_query.get () == NULL)) {
return FALSE;
}
gint ret = m_query->fill (m_candidates, FILL_GRAN);
if (G_UNLIKELY (ret < FILL_GRAN)) {
/* got all candidates from query */
m_query.reset ();
}
return ret > 0 ? TRUE : FALSE;
}
};
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