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/*
* (GLABELS) Label and Business Card Creation program for GNOME
*
* hack.c: various small hacks to deal with I18N
*
* Copyright (C) 2001 Jim Evins <evins@snaught.com>.
*
*
* The g_unichar_to_utf8 has been borrowed from gnumeric, which was borrowed
* from glib-1.3:
* g_unichar_to_utf8: Copyright Red Hat, Inc
*
* 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 of the License, 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <config.h>
#include <gdk/gdk.h>
#include <string.h>
#include <stdlib.h>
#include "hack.h"
static int g_unichar_to_utf8 (gint c, gchar * outbuf);
/*****************************************************************************/
/* Convert text to UTF8. */
/*****************************************************************************/
gchar *
gl_hack_text_to_utf8 (gchar * text)
{
gint len;
GdkWChar *wide_text;
gint enc_status;
gchar *p, *utf8_text;
gint i;
len = strlen (text);
wide_text = g_new (GdkWChar, len + 1);
enc_status = mbstowcs ((wchar_t *)wide_text, (char *)text, len);
if (enc_status < 0) {
g_free (wide_text);
return NULL;
}
p = utf8_text = g_new (gchar, enc_status * 6 + 1);
for (i = 0; i < enc_status; i++) {
p += g_unichar_to_utf8 ((gint) wide_text[i], p);
}
*p = 0; /* terminate */
g_free (wide_text);
return utf8_text;
}
/*****************************************************************************/
/* Calculate width of text with given font. */
/*****************************************************************************/
double
gl_hack_get_width_string (GnomeFont * font,
gchar * text)
{
gint len;
GdkWChar *wide_text;
gint enc_status;
gint i;
gdouble w;
len = strlen (text);
wide_text = g_new (GdkWChar, len + 1);
enc_status = mbstowcs ((wchar_t *)wide_text, (char *)text, len);
if (enc_status < 0) {
g_free (wide_text);
return 0.0;
}
w = 0;
for (i = 0; i < enc_status; i++) {
w += gnome_font_get_glyph_width (font,
gnome_font_lookup_default
(font, wide_text[i]));
}
g_free (wide_text);
return w;
}
/*-----------------------------------------------------------------------------
* This is cut & pasted from glib 1.3
*
* We need it only for iso-8859-1 converter and it will be
* abandoned, if glib 2.0 or any other unicode library will
* be introduced.
*---------------------------------------------------------------------------*/
static int
g_unichar_to_utf8 (gint c,
gchar * outbuf)
{
size_t len = 0;
int first;
int i;
if (c < 0x80) {
first = 0;
len = 1;
} else if (c < 0x800) {
first = 0xc0;
len = 2;
} else if (c < 0x10000) {
first = 0xe0;
len = 3;
} else if (c < 0x200000) {
first = 0xf0;
len = 4;
} else if (c < 0x4000000) {
first = 0xf8;
len = 5;
} else {
first = 0xfc;
len = 6;
}
if (outbuf) {
for (i = len - 1; i > 0; --i) {
outbuf[i] = (c & 0x3f) | 0x80;
c >>= 6;
}
outbuf[0] = c | first;
}
return len;
}
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