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/* vim:set et ts=4 sts=4:
*
* ibus-libpinyin - Intelligent Pinyin engine based on libpinyin for IBus
*
* Copyright (c) 2011 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 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 Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "PYPFullPinyinEditor.h"
#include "PYConfig.h"
#include "PYLibPinyin.h"
using namespace PY;
FullPinyinEditor::FullPinyinEditor
(PinyinProperties & props, Config & config)
: PinyinEditor (props, config)
{
m_instance = LibPinyinBackEnd::instance ().allocPinyinInstance ();
}
FullPinyinEditor::~FullPinyinEditor (void)
{
LibPinyinBackEnd::instance ().freePinyinInstance (m_instance);
m_instance = NULL;
}
void
FullPinyinEditor::reset (void)
{
PinyinEditor::reset ();
}
gboolean
FullPinyinEditor::insert (gint ch)
{
/* is full */
if (G_UNLIKELY (m_text.length () >= MAX_PINYIN_LEN))
return TRUE;
m_text.insert (m_cursor++, ch);
updatePinyin ();
update ();
return TRUE;
}
gboolean
FullPinyinEditor::processKeyEvent (guint keyval,
guint keycode,
guint modifiers)
{
return PinyinEditor::processKeyEvent (keyval, keycode, modifiers);
}
void
FullPinyinEditor::updatePinyin (void)
{
if (G_UNLIKELY (m_text.empty ())) {
m_pinyin_len = 0;
/* TODO: check whether to replace "" with NULL. */
pinyin_parse_more_full_pinyins (m_instance, "");
pinyin_guess_sentence (m_instance);
return;
}
m_pinyin_len =
pinyin_parse_more_full_pinyins (m_instance, m_text.c_str ());
pinyin_guess_sentence (m_instance);
}
void
FullPinyinEditor::updateAuxiliaryText (void)
{
if (G_UNLIKELY (m_text.empty ())) {
hideAuxiliaryText ();
return;
}
m_buffer.clear ();
gchar * aux_text = NULL;
pinyin_get_full_pinyin_auxiliary_text (m_instance, m_cursor, &aux_text);
m_buffer << aux_text;
g_free(aux_text);
/* append rest text */
const gchar * p = m_text.c_str() + m_pinyin_len;
m_buffer << p;
StaticText text (m_buffer);
Editor::updateAuxiliaryText (text, TRUE);
}
void
FullPinyinEditor::update (void)
{
guint lookup_cursor = getLookupCursor ();
pinyin_guess_candidates (m_instance, lookup_cursor);
updateLookupTable ();
updatePreeditText ();
updateAuxiliaryText ();
}
guint
FullPinyinEditor::getLookupCursor (void)
{
guint lookup_cursor = getPinyinCursor ();
/* as pinyin_get_pinyin_offset can't handle the last "'" characters,
strip the string to work around it here. */
String stripped = m_text;
size_t pos = stripped.find_last_not_of ("'") + 1;
if (pos < stripped.length ())
stripped.erase (pos);
/* show candidates when pinyin cursor is at end. */
if (lookup_cursor == stripped.length ())
lookup_cursor = 0;
return lookup_cursor;
}
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