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Modified inpfield to be able to work with double-width UTF-8 chars.

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Note: there is ugly hack in ACT_EDIT_BACKSPACE where last byte of UTF-8
character is removed and then moving to left until complete UTF-8
character is found.
This commit is contained in:
Pavol Babincak 2006-04-08 00:16:10 +02:00 committed by Pavol Babincak
parent 129bd2f444
commit 662ffb903c
1 changed files with 39 additions and 37 deletions
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76
src/bfu/inpfield.c
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@ -273,20 +273,12 @@ display_field_do(struct dialog_data *dlg_data, struct widget_data *widget_data,
#ifdef CONFIG_UTF_8
if (term->utf8) {
unsigned char *t = widget_data->cdata;
unsigned char *t2 = t;
int p = widget_data->info.field.cpos;
unsigned char tmp = t[p];
int x;
t[p] = '\0';
len = strlen_utf8(&t2);
len = utf8_ptr2cells(t, &t[p]);
int_bounds(&left, len - widget_data->box.width + 1, len);
int_lower_bound(&left, 0);
for (t2 = t, x = 0; x < left; x++) {
utf_8_to_unicode(&t2, &t[p]);
}
t[p] = tmp;
widget_data->info.field.vpos = (int)(t2 - t);
widget_data->info.field.vpos = utf8_cells2bytes(t, left, NULL);
} else
#endif /* CONFIG_UTF_8 */
{
@ -303,14 +295,13 @@ display_field_do(struct dialog_data *dlg_data, struct widget_data *widget_data,
color = get_bfu_color(term, "dialog.field-text");
if (color) {
unsigned char *text = widget_data->cdata + widget_data->info.field.vpos;
#ifdef CONFIG_UTF_8
unsigned char *text2 = text;
#endif /* CONFIG_UTF_8 */
int len, w;
#ifdef CONFIG_UTF_8
if (term->utf8)
len = strlen_utf8(&text2);
if (term->utf8 && !hide)
len = utf8_ptr2cells(text, NULL);
else if (term->utf8)
len = utf8_ptr2chars(text, NULL);
else
#endif /* CONFIG_UTF_8 */
len = strlen(text);
@ -318,13 +309,8 @@ display_field_do(struct dialog_data *dlg_data, struct widget_data *widget_data,
if (!hide) {
#ifdef CONFIG_UTF_8
int x;
if (term->utf8) {
int l;
for (l = 0, x = 0; x < w; x++)
l += utf8charlen(text+l);
w = l;
}
if (term->utf8)
w = utf8_cells2bytes(text, w, NULL);
#endif /* CONFIG_UTF_8 */
draw_text(term, widget_data->box.x, widget_data->box.y,
text, w, 0, color);
@ -532,16 +518,29 @@ kbd_field(struct dialog_data *dlg_data, struct widget_data *widget_data)
case ACT_EDIT_BACKSPACE:
#ifdef CONFIG_UTF_8
if (widget_data->info.field.cpos && term->utf8) {
unsigned char *t = widget_data->cdata;
unsigned char *t2 = t;
int p = widget_data->info.field.cpos - 1;
unsigned char tmp = t[p];
/* XXX: stolen from src/viewer/text/form.c */
/* FIXME: This isn't nice. We remove last byte
* from UTF-8 character to detect
* character before it. */
unsigned char *text = widget_data->cdata;
unsigned char *end = widget_data->cdata + widget_data->info.field.cpos - 1;
unicode_val_T data;
int old = widget_data->info.field.cpos;
t[p] = '\0';
strlen_utf8(&t2);
t[p] = tmp;
memmove(t2, &t[p + 1], strlen(&t[p + 1]) + 1);
widget_data->info.field.cpos = (int)(t2 - t);
while(1) {
data = utf_8_to_unicode(&text, end);
if (data == UCS_NO_CHAR)
break;
}
widget_data->info.field.cpos = (int)(text - widget_data->cdata);
if (old != widget_data->info.field.cpos) {
int length;
text = widget_data->cdata;
length = strlen(text + old) + 1;
memmove(text + widget_data->info.field.cpos, text + old, length);
}
goto display_field;
}
#endif /* CONFIG_UTF_8 */
@ -561,12 +560,15 @@ kbd_field(struct dialog_data *dlg_data, struct widget_data *widget_data)
#ifdef CONFIG_UTF_8
if (term->utf8) {
unsigned char *next = widget_data->cdata + widget_data->info.field.cpos;
unsigned char *dest = next;
unsigned char *end = strchr(next, '\0');
utf_8_to_unicode(&next, end);
memmove(dest, next, strlen(next) + 1);
unsigned char *end = widget_data->cdata + cdata_len;
unsigned char *text = widget_data->cdata + widget_data->info.field.cpos;
unsigned char *old = text;
utf_8_to_unicode(&text, end);
if (old != text) {
memmove(old, text,
(int)(end - text) + 1);
}
goto display_field;
}
#endif /* CONFIG_UTF_8 */