static gchar*
h_ibus_text_get_substring (IBusText* ibus_text, glong p1, glong p2)
{
const gchar* text;
const gchar* begin;
const gchar* end;
gchar* substring;
glong limit;
glong pos;
glong n;
text = ibus_text_get_text (ibus_text);
limit = ibus_text_get_length (ibus_text) + 1;
if (text == NULL || limit == 0)
return NULL;
p1 = MAX(0, p1);
p2 = MAX(0, p2);
pos = MIN(p1, p2);
n = ABS(p2 - p1);
if (pos + n > limit)
n = limit - pos;
begin = g_utf8_offset_to_pointer (text, pos);
end = g_utf8_offset_to_pointer (begin, n);
substring = g_strndup (begin, end - begin);
return substring;
}
static void ibus_unikey_engine_update_preedit_string(IBusEngine *engine, const gchar *string, gboolean visible)
{
IBusText *text;
text = ibus_text_new_from_static_string(string);
// underline text
ibus_text_append_attribute(text, IBUS_ATTR_TYPE_UNDERLINE, IBUS_ATTR_UNDERLINE_SINGLE, 0, -1);
// update and display text
ibus_engine_update_preedit_text_with_mode(engine, text, ibus_text_get_length(text), visible, IBUS_ENGINE_PREEDIT_COMMIT);
}
static void
ibus_hangul_engine_update_preedit_text (IBusHangulEngine *hangul)
{
const ucschar *hic_preedit;
IBusText *text;
UString *preedit;
gint preedit_len;
// ibus-hangul's preedit string is made up of ibus context's
// internal preedit string and libhangul's preedit string.
// libhangul only supports one syllable preedit string.
// In order to make longer preedit string, ibus-hangul maintains
// internal preedit string.
hic_preedit = hangul_ic_get_preedit_string (hangul->context);
preedit = ustring_dup (hangul->preedit);
preedit_len = ustring_length(preedit);
ustring_append_ucs4 (preedit, hic_preedit, -1);
if (ustring_length(preedit) > 0) {
IBusPreeditFocusMode preedit_option = IBUS_ENGINE_PREEDIT_COMMIT;
if (hangul->hanja_list != NULL)
preedit_option = IBUS_ENGINE_PREEDIT_CLEAR;
text = ibus_text_new_from_ucs4 ((gunichar*)preedit->data);
// ibus-hangul's internal preedit string
ibus_text_append_attribute (text, IBUS_ATTR_TYPE_UNDERLINE,
IBUS_ATTR_UNDERLINE_SINGLE, 0, preedit_len);
// Preedit string from libhangul context.
// This is currently composing syllable.
ibus_text_append_attribute (text, IBUS_ATTR_TYPE_FOREGROUND,
0x00ffffff, preedit_len, -1);
ibus_text_append_attribute (text, IBUS_ATTR_TYPE_BACKGROUND,
0x00000000, preedit_len, -1);
ibus_engine_update_preedit_text_with_mode ((IBusEngine *)hangul,
text,
ibus_text_get_length (text),
TRUE,
preedit_option);
} else {
text = ibus_text_new_from_static_string ("");
ibus_engine_update_preedit_text ((IBusEngine *)hangul, text, 0, FALSE);
}
ustring_delete(preedit);
}
static void ibus_unikey_engine_update_preedit_string(IBusEngine *engine, const gchar *string, gboolean visible)
{
IBusText *text;
text = ibus_text_new_from_static_string(string);
// underline text
ibus_text_append_attribute(text, IBUS_ATTR_TYPE_UNDERLINE, IBUS_ATTR_UNDERLINE_SINGLE, 0, -1);
// update and display text
ibus_engine_update_preedit_text(engine, text, ibus_text_get_length(text), visible);
// every time have preedit text -> unlock mutex -> start capture mouse
if (unikey->mouse_capture)
{
// unlock capture thread (start capture)
pthread_mutex_unlock(&mutex_mcap);
}
}
static void
ibus_m17n_engine_callback (MInputContext *context,
MSymbol command)
{
IBusM17NEngine *m17n = NULL;
m17n = context->arg;
g_return_if_fail (m17n != NULL);
/* the callback may be called in minput_create_ic, in the time
* m17n->context has not be assigned, so need assign it. */
if (m17n->context == NULL) {
m17n->context = context;
}
if (command == Minput_preedit_start) {
ibus_engine_hide_preedit_text ((IBusEngine *)m17n);
}
else if (command == Minput_preedit_draw) {
ibus_m17n_engine_update_preedit (m17n);
}
else if (command == Minput_preedit_done) {
ibus_engine_hide_preedit_text ((IBusEngine *)m17n);
}
else if (command == Minput_status_start) {
ibus_engine_hide_preedit_text ((IBusEngine *)m17n);
}
else if (command == Minput_status_draw) {
gchar *status;
status = ibus_m17n_mtext_to_utf8 (m17n->context->status);
if (status && strlen (status)) {
IBusText *text;
text = ibus_text_new_from_string (status);
ibus_property_set_label (m17n->status_prop, text);
ibus_property_set_visible (m17n->status_prop, TRUE);
}
else {
ibus_property_set_label (m17n->status_prop, NULL);
ibus_property_set_visible (m17n->status_prop, FALSE);
}
ibus_engine_update_property ((IBusEngine *)m17n, m17n->status_prop);
g_free (status);
}
else if (command == Minput_status_done) {
}
else if (command == Minput_candidates_start) {
ibus_engine_hide_lookup_table ((IBusEngine *) m17n);
ibus_engine_hide_auxiliary_text ((IBusEngine *) m17n);
}
else if (command == Minput_candidates_draw) {
ibus_m17n_engine_update_lookup_table (m17n);
}
else if (command == Minput_candidates_done) {
ibus_engine_hide_lookup_table ((IBusEngine *) m17n);
ibus_engine_hide_auxiliary_text ((IBusEngine *) m17n);
}
else if (command == Minput_set_spot) {
}
else if (command == Minput_toggle) {
}
else if (command == Minput_reset) {
}
/* ibus_engine_get_surrounding_text is only available in the current
git master (1.3.99+) */
#ifdef HAVE_IBUS_ENGINE_GET_SURROUNDING_TEXT
else if (command == Minput_get_surrounding_text &&
(((IBusEngine *) m17n)->client_capabilities &
IBUS_CAP_SURROUNDING_TEXT) != 0) {
IBusText *text;
guint cursor_pos, nchars, nbytes;
MText *mt, *surround;
int len, pos;
ibus_engine_get_surrounding_text ((IBusEngine *) m17n,
&text,
&cursor_pos);
nchars = ibus_text_get_length (text);
nbytes = g_utf8_offset_to_pointer (text->text, nchars) - text->text;
mt = mconv_decode_buffer (Mcoding_utf_8, text->text, nbytes);
g_object_unref (text);
len = (long) mplist_value (m17n->context->plist);
if (len < 0) {
pos = cursor_pos + len;
if (pos < 0)
pos = 0;
surround = mtext_duplicate (mt, pos, cursor_pos);
}
else if (len > 0) {
pos = cursor_pos + len;
if (pos > nchars)
pos = nchars;
surround = mtext_duplicate (mt, cursor_pos, pos);
}
else {
surround = mtext ();
}
m17n_object_unref (mt);
mplist_set (m17n->context->plist, Mtext, surround);
m17n_object_unref (surround);
}
#endif /* !HAVE_IBUS_ENGINE_GET_SURROUNDING_TEXT */
else if (command == Minput_delete_surrounding_text &&
(((IBusEngine *) m17n)->client_capabilities &
IBUS_CAP_SURROUNDING_TEXT) != 0) {
int len;
len = (long) mplist_value (m17n->context->plist);
if (len < 0)
ibus_engine_delete_surrounding_text ((IBusEngine *) m17n,
len, -len);
else if (len > 0)
ibus_engine_delete_surrounding_text ((IBusEngine *) m17n,
0, len);
}
}
