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/*
* ion/de/fontset.c
*
* This file contains routines to attempt to add fonts to a font pattern
* so that XCreateFontSet will not fail because the given font(s) do not
* contain all the characters required by the locale. The original code
* was apparently written by Tomohiro Kubota; see
* <http://www.debian.org/doc/manuals/intro-i18n/ch-examples.en.html#s13.4.5>.
*
*/
#include <string.h>
#include <ctype.h>
#include <locale.h>
#include <ioncore/common.h>
#include <ioncore/global.h>
#ifndef CF_FONT_ELEMENT_SIZE
#define CF_FONT_ELEMENT_SIZE 50
#endif
#define FNT_D(X) /*X*/
static const char *mystrcasestr(const char *str, const char *ptn)
{
const char *s2, *p2;
for(; *str; str++) {
for(s2=str,p2=ptn; ; s2++,p2++) {
if (!*p2) return str;
if (toupper(*s2) != toupper(*p2)) break;
}
}
return NULL;
}
static const char *get_font_element(const char *pattern, char *buf,
int bufsiz, ...)
{
const char *p, *v;
char *p2;
va_list va;
va_start(va, bufsiz);
buf[bufsiz-1] = 0;
buf[bufsiz-2] = '*';
while((v = va_arg(va, char *)) != NULL) {
p = mystrcasestr(pattern, v);
if (p) {
strncpy(buf, p+1, bufsiz-2);
p2 = strchr(buf, '-');
if (p2) *p2=0;
va_end(va);
return p;
}
}
va_end(va);
strncpy(buf, "*", bufsiz);
return NULL;
}
static const char *get_font_size(const char *pattern, int *size)
{
const char *p;
const char *p2=NULL;
int n=0;
for (p=pattern; 1; p++) {
if (!*p) {
if (p2!=NULL && n>1 && n<72) {
*size = n; return p2+1;
} else {
*size = 16; return NULL;
}
} else if (*p=='-') {
if (n>1 && n<72 && p2!=NULL) {
*size = n;
return p2+1;
}
p2=p; n=0;
} else if (*p>='0' && *p<='9' && p2!=NULL) {
n *= 10;
n += *p-'0';
} else {
p2=NULL; n=0;
}
}
}
XFontSet de_create_font_set(const char *fontname)
{
XFontSet fs;
char **missing, *def = "-";
int nmissing, pixel_size = 0;
char weight[CF_FONT_ELEMENT_SIZE], slant[CF_FONT_ELEMENT_SIZE];
const char *nfontname = fontname;
char *pattern2 = NULL;
FNT_D(fprintf(stderr, "FNTRQ: %s\n", fontname));
fs = XCreateFontSet(wglobal.dpy, fontname, &missing, &nmissing, &def);
if (fs && (! nmissing))
return fs;
/* Not a warning, nothing serious */
FNT_D(fprintf(stderr, "Failed to load fonset.\n"));
if (! fs) {
char *lcc=NULL;
const char *lc;
if (nmissing)
XFreeStringList(missing);
lc=setlocale(LC_CTYPE, NULL);
if(lc!=NULL && strcmp(lc, "POSIX")!=0 && strcmp(lc, "C")!=0)
lcc=scopy(lc);
setlocale(LC_CTYPE, "C");
fs = XCreateFontSet(wglobal.dpy, fontname, &missing, &nmissing, &def);
if(lcc!=NULL){
setlocale(LC_CTYPE, lcc);
free(lcc);
}
}
if (fs) {
XFontStruct **fontstructs;
char **fontnames;
XFontsOfFontSet(fs, &fontstructs, &fontnames);
nfontname = fontnames[0];
}
/*if(fs){
XFontStruct **fontstructs;
char **fontnames;
int i, n=XFontsOfFontSet(fs, &fontstructs, &fontnames);
for(i=0; fontnames[i] && i<n; i++)
fprintf(stderr, "%s\n", fontnames[i]);
}*/
get_font_element(nfontname, weight, CF_FONT_ELEMENT_SIZE,
"-medium-", "-bold-", "-demibold-", "-regular-", NULL);
get_font_element(nfontname, slant, CF_FONT_ELEMENT_SIZE,
"-r-", "-i-", "-o-", "-ri-", "-ro-", NULL);
get_font_size(nfontname, &pixel_size);
if (! strcmp(weight, "*"))
strncpy(weight, "medium", CF_FONT_ELEMENT_SIZE);
if (! strcmp(slant, "*"))
strncpy(slant, "r", CF_FONT_ELEMENT_SIZE);
if (pixel_size < 3)
pixel_size = 3;
else if (pixel_size > 97)
pixel_size = 97;
libtu_asprintf(&pattern2,
"%s,"
"-*-*-%s-%s-*-*-%d-*-*-*-*-*-*-*,"
"-*-*-*-*-*-*-%d-*-*-*-*-*-*-*,*",
fontname, weight, slant, pixel_size, pixel_size);
if(pattern2==NULL)
return NULL;
FNT_D(fprintf(stderr, "NRQ: %s\n", pattern2));
nfontname = pattern2;
if (nmissing)
XFreeStringList(missing);
if (fs)
XFreeFontSet(wglobal.dpy, fs);
FNT_D(if(fs) fprintf(stderr, "Trying '%s'.\n", nfontname));
fs = XCreateFontSet(wglobal.dpy, nfontname, &missing, &nmissing, &def);
free(pattern2);
/*if(fs){
XFontStruct **fontstructs;
char **fontnames;
int i, n=XFontsOfFontSet(fs, &fontstructs, &fontnames);
for(i=0; fontnames[i] && i<n; i++)
fprintf(stderr, "%s\n", fontnames[i]);
}*/
return fs;
}
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