int
im_uim_delete_primary_text(IMUIMContext *uic, enum UTextOrigin origin,
int former_req_len, int latter_req_len)
{
gboolean success;
gint offset, n_chars;
/* specific widgets handling */
if (GTK_IS_ENTRY(uic->widget))
return delete_text_in_gtk_entry(GTK_ENTRY(uic->widget), origin,
former_req_len, latter_req_len);
else if (GTK_IS_TEXT_VIEW(uic->widget))
return delete_text_in_gtk_text_view(GTK_TEXT_VIEW(uic->widget), origin,
former_req_len, latter_req_len);
/*
* For the rest of widget, we use delete_surrounding, which means explicit
* value for former_len and latter_len is required and its origin must be the
* cursor.
*/
offset = n_chars = 0;
switch (origin) {
case UTextOrigin_Cursor:
if (former_req_len >= 0) {
offset = -former_req_len;
n_chars = former_req_len;
} else {
return -1;
}
if (latter_req_len >= 0)
n_chars += latter_req_len;
else
return -1;
break;
case UTextOrigin_Beginning:
case UTextOrigin_End:
case UTextOrigin_Unspecified:
default:
return -1;
}
success = gtk_im_context_delete_surrounding(GTK_IM_CONTEXT(uic), offset,
n_chars);
return success ? 0 : -1;
}
void
enqueue(char *string)
{
/* fprintf(stderr, "enqueueing [%s]\n", string); */
while (*string == '\b')
{
gtk_im_context_delete_surrounding(myContext, -1, 1);
string += 1;
}
if (*string == 0)
{
return;
}
else if (*string == '\r')
{
/* fprintf(stderr, "saw cr, suppressing\n"); */
}
else
{
g_signal_emit_by_name (myContext, "commit", string);
}
} /* enqueue */
boolean scim_bridge_client_imcontext_delete_surrounding_text (ScimBridgeClientIMContext *imcontext, int offset, int length)
{
boolean retval = gtk_im_context_delete_surrounding (GTK_IM_CONTEXT (imcontext), offset, length);
return retval;
}
static VALUE
rg_delete_surrounding(VALUE self, VALUE offset, VALUE n_chars)
{
return CBOOL2RVAL(gtk_im_context_delete_surrounding(_SELF(self), NUM2INT(offset),
NUM2INT(n_chars)));
}
static gboolean
sinhala_transliterated_filter_keypress(GtkIMContext *context,
GdkEventKey *event)
{
int c, c1, l1;
guchar *u = NULL;
gchar *text;
gint cursor, has_surrounding;
if (event->keyval == 0) return FALSE;
if (event->type == GDK_KEY_RELEASE) {
if (event->keyval == GDK_Shift_L) shift_l = 0;
if (event->keyval == GDK_Shift_R) shift_r = 0;
if (event->keyval == GDK_Control_L) ctrl_l = 0;
if (event->keyval == GDK_Control_R) ctrl_r = 0;
return FALSE;
}
if (event->keyval == GDK_Shift_L) {
shift_l = 1;
return FALSE;
}
if (event->keyval == GDK_Shift_R) {
shift_r = 1;
return FALSE;
}
if (event->keyval == GDK_Control_L) {
ctrl_l = 1;
return FALSE;
}
if (event->keyval == GDK_Control_R) {
ctrl_r = 1;
return FALSE;
}
if ((event->keyval == GDK_space) && (shift_l || shift_r)) {
/* FIXME: add non breaking space */
return TRUE;
}
if ((event->keyval == GDK_space) && (ctrl_l || ctrl_r)) {
sinhala_input = !sinhala_input;
return TRUE;
}
if (event->state & (gtk_accelerator_get_default_mod_mask() & ~GDK_SHIFT_MASK))
return FALSE;
if (!sinhala_input && (event->keyval < 128)) {
u = malloc(2);
u[0] = event->keyval;
u[1] = 0;
g_signal_emit_by_name (context, "commit", u);
free(u);
return TRUE;
}
has_surrounding = gtk_im_context_get_surrounding(context, &text, &cursor);
c = find_consonent_by_key(event->keyval);
if (c >= 0) { /* a consonent is pressed. */
/* do modifiers first. */
if (has_surrounding && (cursor >= 3)) {
c1 = get_known_lsb_character(text + cursor - 3);
l1 = find_consonent(c1);
/* do modifiers only if there is a valid character before */
if (l1 >= 0) {
if (event->keyval == GDK_w) {
u = create_unicode_character_from_lsb(0xca);
g_signal_emit_by_name (context, "commit", u);
free(u);
free(text);
return TRUE;
}
if (event->keyval == GDK_W) {
/* bandi hal kireema */
u = malloc(7);
u[0] = 0xe0; u[1] = 0xb7; u[2] = 0x8a;
u[3] = 0xe2; u[4] = 0x80; u[5] = 0x8d;
u[6] = 0;
g_signal_emit_by_name (context, "commit", u);
free(u);
free(text);
return TRUE;
}
if ((event->keyval == GDK_H) && (consonents[l1].mahaprana)) {
gtk_im_context_delete_surrounding(context, -1, 1);
u = create_unicode_character_from_lsb(consonents[l1].mahaprana);
g_signal_emit_by_name (context, "commit", u);
free(u);
free(text);
return TRUE;
}
if ((event->keyval == GDK_G) && (consonents[l1].sagngnaka)) {
gtk_im_context_delete_surrounding(context, -1, 1);
u = create_unicode_character_from_lsb(consonents[l1].sagngnaka);
g_signal_emit_by_name (context, "commit", u);
free(u);
free(text);
return TRUE;
}
if (event->keyval == GDK_R) {
/* rakaraanshaya */
u = malloc(10);
u[0] = 0xe0; u[1] = 0xb7; u[2] = 0x8a;
u[3] = 0xe2; u[4] = 0x80; u[5] = 0x8d;
u[6] = 0xe0; u[7] = 0xb6; u[8] = 0xbb;
u[9] = 0;
g_signal_emit_by_name (context, "commit", u);
free(u);
free(text);
return TRUE;
}
if (event->keyval == GDK_Y) {
/* yansaya */
u = malloc(10);
u[0] = 0xe0; u[1] = 0xb7; u[2] = 0x8a;
u[3] = 0xe2; u[4] = 0x80; u[5] = 0x8d;
u[6] = 0xe0; u[7] = 0xb6; u[8] = 0xba;
u[9] = 0;
g_signal_emit_by_name (context, "commit", u);
free(u);
free(text);
return TRUE;
}
}
}
u = create_unicode_character_from_lsb(consonents[c].character);
g_signal_emit_by_name (context, "commit", u);
free(u);
if (has_surrounding) free(text);
return TRUE;
/* end of consonent handling. */
}
c = find_vowel_by_key(event->keyval);
if (c >= 0) {
/* a vowel is pressed. */
/* look for a previous character first. */
u = NULL;
if (has_surrounding && (cursor >= 3)) {
c1 = get_known_lsb_character(text + cursor - 3);
if (is_consonent(c1)) {
u = create_unicode_character_from_lsb(vowels[c].single1);
}
else if (c1 == vowels[c].single0) {
gtk_im_context_delete_surrounding(context, -1, 1);
u = create_unicode_character_from_lsb(vowels[c].double0);
}
else if (c1 == vowels[c].single1) {
gtk_im_context_delete_surrounding(context, -1, 1);
u = create_unicode_character_from_lsb(vowels[c].double1);
}
}
if (u == NULL)
u = create_unicode_character_from_lsb(vowels[c].single0);
g_signal_emit_by_name (context, "commit", u);
free(u);
if (has_surrounding) free(text);
return TRUE;
/* end of vowel handling. */
}
if (event->keyval < 128) {
u = malloc(2);
u[0] = event->keyval;
u[1] = 0;
g_signal_emit_by_name (context, "commit", u);
free(u);
if (has_surrounding) free(text);
return TRUE;
}
if (event->keyval == GDK_BackSpace) {
gtk_im_context_delete_surrounding(context, -1, 1);
if (has_surrounding) free(text);
return TRUE;
}
if (has_surrounding) free(text);
return FALSE;
}
