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move gapcalc.c

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Don Stewart 2007-05-28 04:04:02 +00:00
parent f6bac98678
commit cf52e66ec1
1 changed files with 0 additions and 70 deletions
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util/gapcalc.c
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/* gapcalc - calculate height of given font
* Copyright (C) 2007 by Robert Manea <rob.manea@gmail.com>
*
* Compile with: cc -lX11 -o gapcalc gapcalc.c
*/
#include<stdio.h>
#include<stdlib.h>
#include<stdarg.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
void
eprint(const char *errstr, ...) {
va_list ap;
va_start(ap, errstr);
vfprintf(stderr, errstr, ap);
va_end(ap);
exit(EXIT_FAILURE);
}
int
main(int argc, char *argv[]) {
Display *dpy;
XFontStruct *xfont;
XFontSet set;
char *def, **missing;
char *fontstr;
int i, n, ascent, descent;
if(argc < 2)
eprint("Usage: gapcalc <font>\n");
if(!(dpy = XOpenDisplay(0)))
eprint("fatal: cannot open display\n");
fontstr = argv[1];
missing = NULL;
set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
if(missing)
XFreeStringList(missing);
if(set) {
XFontSetExtents *font_extents;
XFontStruct **xfonts;
char **font_names;
ascent = descent = 0;
font_extents = XExtentsOfFontSet(set);
n = XFontsOfFontSet(set, &xfonts, &font_names);
for(i = 0, ascent = 0, descent = 0; i < n; i++) {
if(ascent < (*xfonts)->ascent)
ascent = (*xfonts)->ascent;
if(descent < (*xfonts)->descent)
descent = (*xfonts)->descent;
xfonts++;
}
} else if(!set && (xfont = XLoadQueryFont(dpy, fontstr))) {
ascent = xfont->ascent;
descent = xfont->descent;
} else
eprint("fatal: cannot find specified font\n");
printf("%d\n", ascent + descent + 2);
return EXIT_SUCCESS;
}