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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 "PYPDoublePinyinEditor.h"
#include "PYConfig.h"
#include "PYLibPinyin.h"
using namespace PY;
/*
* c in 'a' ... 'z' => id = c - 'a'
* c == ';' => id = 26
* else => id = -1
*/
#define ID(c) \
((c >= IBUS_a && c <= IBUS_z) ? c - IBUS_a : (c == IBUS_semicolon ? 26 : -1))
#define IS_ALPHA(c) \
((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'))
DoublePinyinEditor::DoublePinyinEditor
( PinyinProperties & props, Config & config)
: PinyinEditor (props, config)
{
m_instance = LibPinyinBackEnd::instance ().allocPinyinInstance ();
}
DoublePinyinEditor::~DoublePinyinEditor (void)
{
LibPinyinBackEnd::instance ().freePinyinInstance (m_instance);
m_instance = NULL;
}
gboolean
DoublePinyinEditor::insert (gint ch)
{
/* is full */
if (G_UNLIKELY (m_text.length () >= MAX_PINYIN_LEN))
return TRUE;
gint id = ID (ch);
if (id == -1) {
/* it is not available ch */
return FALSE;
}
#if 0
if (G_UNLIKELY (m_text.empty () && ID_TO_SHENG (id) == PINYIN_ID_VOID)) {
return FALSE;
}
#endif
m_text.insert (m_cursor++, ch);
updatePinyin ();
update ();
return TRUE;
}
void DoublePinyinEditor::reset (void)
{
PinyinEditor::reset ();
}
gboolean
DoublePinyinEditor::processKeyEvent (guint keyval, guint keycode,
guint modifiers)
{
/* handle ';' key */
if (G_UNLIKELY (keyval == IBUS_semicolon)) {
if (cmshm_filter (modifiers) == 0) {
if (m_text.empty ())
return FALSE;
if (insert (keyval))
return TRUE;
}
}
return PinyinEditor::processKeyEvent (keyval, keycode, modifiers);
}
void
DoublePinyinEditor::updatePinyin (void)
{
if (G_UNLIKELY (m_text.empty ())) {
m_pinyin_len = 0;
/* TODO: check whether to replace "" with NULL. */
pinyin_parse_more_double_pinyins (m_instance, "");
pinyin_guess_sentence(m_instance);
return;
}
m_pinyin_len =
pinyin_parse_more_double_pinyins (m_instance, m_text.c_str ());
pinyin_guess_sentence (m_instance);
}
void
DoublePinyinEditor::updateAuxiliaryText (void)
{
if (G_UNLIKELY (m_text.empty ())) {
hideAuxiliaryText ();
return;
}
m_buffer.clear ();
gchar * aux_text = NULL;
pinyin_get_double_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);
}
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