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/* vim:set et ts=4 sts=4:
*
* ibus-libpinyin - Intelligent Pinyin engine based on libpinyin for IBus
*
* Copyright (c) 2018 Peng Wu <alexepico@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 3 of the License, 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, see <http://www.gnu.org/licenses/>.
*/
#include "PYPLibPinyinCandidates.h"
#include <assert.h>
#include <pinyin.h>
#include "PYConfig.h"
#include "PYLibPinyin.h"
#include "PYPPhoneticEditor.h"
using namespace PY;
gboolean
LibPinyinCandidates::processCandidates (std::vector<EnhancedCandidate> & candidates)
{
pinyin_instance_t *instance = m_editor->m_instance;
guint len = 0;
pinyin_get_n_candidate (instance, &len);
for (guint i = 0; i < len; i++) {
lookup_candidate_t * candidate = NULL;
pinyin_get_candidate (instance, i, &candidate);
lookup_candidate_type_t type;
pinyin_get_candidate_type (instance, candidate, &type);
const gchar * phrase_string = NULL;
pinyin_get_candidate_string (instance, candidate, &phrase_string);
EnhancedCandidate enhanced;
switch (type) {
case NBEST_MATCH_CANDIDATE:
enhanced.m_candidate_type = CANDIDATE_NBEST_MATCH;
break;
case NORMAL_CANDIDATE:
case ADDON_CANDIDATE:
enhanced.m_candidate_type = CANDIDATE_NORMAL;
if (pinyin_is_user_candidate (instance, candidate))
enhanced.m_candidate_type = CANDIDATE_USER;
break;
default:
assert (FALSE);
}
enhanced.m_candidate_id = i;
enhanced.m_display_string = phrase_string;
candidates.push_back (enhanced);
}
return TRUE;
}
int
LibPinyinCandidates::selectCandidate (EnhancedCandidate & enhanced)
{
pinyin_instance_t * instance = m_editor->m_instance;
assert (CANDIDATE_NBEST_MATCH == enhanced.m_candidate_type ||
CANDIDATE_NORMAL == enhanced.m_candidate_type ||
CANDIDATE_USER == enhanced.m_candidate_type);
guint len = 0;
pinyin_get_n_candidate (instance, &len);
if (G_UNLIKELY (enhanced.m_candidate_id >= len))
return SELECT_CANDIDATE_ALREADY_HANDLED;
guint lookup_cursor = m_editor->getLookupCursor ();
lookup_candidate_t * candidate = NULL;
pinyin_get_candidate (instance, enhanced.m_candidate_id, &candidate);
gchar * str = NULL;
if (CANDIDATE_NBEST_MATCH == enhanced.m_candidate_type) {
/* because nbest match candidate
starts from the beginning of user input. */
pinyin_choose_candidate (instance, 0, candidate);
guint8 index = 0;
pinyin_get_candidate_nbest_index(instance, candidate, &index);
if (index != 0)
pinyin_train (instance, index);
pinyin_get_sentence (instance, index, &str);
if (m_editor->m_config.rememberEveryInput ())
LibPinyinBackEnd::instance ().rememberUserInput (instance, str);
LibPinyinBackEnd::instance ().modified();
g_free (str);
return SELECT_CANDIDATE_COMMIT;
}
lookup_cursor = pinyin_choose_candidate
(instance, lookup_cursor, candidate);
pinyin_guess_sentence (instance);
if (lookup_cursor == m_editor->m_text.length ()) {
pinyin_get_sentence (instance, 0, &str);
enhanced.m_display_string = str;
pinyin_train (instance, 0);
if (m_editor->m_config.rememberEveryInput ())
LibPinyinBackEnd::instance ().rememberUserInput (instance, str);
LibPinyinBackEnd::instance ().modified ();
g_free (str);
return SELECT_CANDIDATE_MODIFY_IN_PLACE|SELECT_CANDIDATE_COMMIT;
}
PinyinKeyPos *pos = NULL;
pinyin_get_pinyin_key_rest (instance, lookup_cursor, &pos);
guint16 begin = 0;
pinyin_get_pinyin_key_rest_positions (instance, pos, &begin, NULL);
m_editor->m_cursor = begin;
return SELECT_CANDIDATE_UPDATE;
}
gboolean
LibPinyinCandidates::removeCandidate (EnhancedCandidate & enhanced)
{
pinyin_instance_t * instance = m_editor->m_instance;
if (enhanced.m_candidate_type != CANDIDATE_USER)
return FALSE;
lookup_candidate_t * candidate = NULL;
guint index = enhanced.m_candidate_id;
pinyin_get_candidate (instance, index, &candidate);
assert (pinyin_is_user_candidate (instance, candidate));
pinyin_remove_user_candidate (instance, candidate);
return TRUE;
}
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