2915a112ca93299984d2c57429abb5b714374d35
1 /*
2 * (c) 2004 by Kalle Wallin <kaw@linux.se>
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
16 *
17 */
19 #include "hscroll.h"
20 #include "charset.h"
21 #include "config.h"
23 #include <assert.h>
24 #include <ctype.h>
25 #include <string.h>
27 #ifndef NCMPC_MINI
29 // FIXME: utf-8 length
30 char *
31 strscroll(char *str, char *separator, int width, scroll_state_t *st)
32 {
33 gchar *tmp, *buf;
34 gsize len, size;
36 assert(str != NULL);
37 assert(separator != NULL);
38 assert(st != NULL);
40 if( st->offset==0 ) {
41 st->offset++;
42 return g_strdup(str);
43 }
45 /* create a buffer containing the string and the separator */
46 size = strlen(str)+strlen(separator)+1;
47 tmp = g_malloc(size);
48 g_strlcpy(tmp, str, size);
49 g_strlcat(tmp, separator, size);
50 len = utf8_width(tmp);
52 if (st->offset >= len)
53 st->offset = 0;
55 /* create the new scrolled string */
56 size = width+1;
57 if (g_utf8_validate(tmp, -1, NULL) ) {
58 int ulen;
59 buf = g_malloc(size*6);// max length of utf8 char is 6
60 g_utf8_strncpy(buf, g_utf8_offset_to_pointer(tmp,st->offset), size);
61 if( (ulen = g_utf8_strlen(buf, -1)) < width )
62 g_utf8_strncpy(buf+strlen(buf), tmp, size - ulen - 1);
63 } else {
64 buf = g_malloc(size);
65 g_strlcpy(buf, tmp+st->offset, size);
66 if (strlen(buf) < (size_t)width)
67 g_strlcat(buf, tmp, size);
68 }
69 if( time(NULL)-st->t >= 1 ) {
70 st->t = time(NULL);
71 st->offset++;
72 }
73 g_free(tmp);
74 return buf;
75 }
77 #endif