3 * Return X display size to shell script
5 * (c) 1998 Straylight/Edgeware
8 /*----- Licensing notice --------------------------------------------------*
10 * This file is part of the Edgeware X tools collection.
12 * X tools is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
17 * X tools is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with X tools; if not, write to the Free Software Foundation,
24 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
27 /*----- Header files ------------------------------------------------------*/
35 #include <mLib/mdwopt.h>
36 #include <mLib/quis.h>
38 /*----- Static variables --------------------------------------------------*/
40 static unsigned int flags
= 0;
46 /*----- Main code ---------------------------------------------------------*/
48 static void version(FILE *fp
)
49 { pquis(fp
, "$ (xtoys version " VERSION
")\n"); }
51 static void usage(FILE *fp
)
52 { pquis(fp
, "Usage: $ [-bcx] [-d DISPLAY]\n"); }
54 static void help(FILE *fp
)
60 Reads the size of the X root window and outputs it in a form suitable\n\
61 for use as a shell assignment statement, defining variables XWIDTH and\n\
66 -h, --help Display this help text\n\
67 -u, --usage Display a short usage summary\n\
68 -v, --version Display the program's version number\n\
70 -d, --display=DISPLAY Choose X display to connect to\n\
71 -b, --bourne-shell Output text suitable for a Bourne shell\n\
72 -c, --c-shell Output text suitable for a C shell\n\
73 -x, --export Export the variables into the environment\n",
77 static void print_var(const char *name
, unsigned long value
)
80 dstr_putf(&d
, "XSCR%d_%s", index
, name
);
84 printf("%s=%lu", name
, value
);
85 if (flags
& F_EXPORT
) printf("; export %s", name
);
86 } else if (flags
& F_CSH
) {
87 if (flags
& F_EXPORT
) printf("setenv %s %lu", name
, value
);
88 else printf("set %s=%lu", name
, value
);
94 int main(int argc
, char *argv
[])
98 const char *display
= 0;
100 unsigned long wd
, ht
;
105 /* --- Parse command line options --- */
110 static struct option opt
[] = {
111 { "help", 0, 0, 'h' },
112 { "usage", 0, 0, 'u' },
113 { "version", 0, 0, 'v' },
114 { "display", OPTF_ARGREQ
, 0, 'd' },
115 { "bourne-shell", 0, 0, 'b' },
116 { "c-shell", 0, 0, 'c' },
117 { "export", 0, 0, 'x' },
121 int i
= getopt_long(argc
, argv
, "huv" "d:bcx", opt
, 0);
124 case 'h': help(stdout
); exit(0); break;
125 case 'u': usage(stdout
); exit(0); break;
126 case 'v': version(stdout
); exit(0); break;
127 case 'd': display
= optarg
; break;
128 case 'b': flags
|= F_SH
; break;
129 case 'c': flags
|= F_CSH
; break;
130 case 'x': flags
|= F_EXPORT
; break;
131 default: f
|= f_bogus
; break;
135 if (optind
< argc
) f
|= f_bogus
;
136 if (f
& f_bogus
) { usage(stderr
); exit(EXIT_FAILURE
); }
138 /* --- Sort out the shell type --- *
140 * If the shell name contains the string `csh' then assume it's a C shell.
141 * Otherwise assume it's Bourne. This seems to work in practice.
144 if (!(flags
& F_SHELL
)) {
146 if (!s
) flags
|= F_SH
;
147 if (strstr(s
, "csh")) flags
|= F_CSH
;
151 if ((flags
& F_SH
) && (flags
& F_CSH
)) {
152 fprintf(stderr
, "xscsize: make your mind up about your shell type\n");
156 /* --- Get the important information --- */
158 dpy
= XOpenDisplay(display
);
160 fprintf(stderr
, "xscsize: couldn't open display\n");
163 sc
= DefaultScreen(dpy
);
164 wd
= DisplayWidth(dpy
, sc
);
165 ht
= DisplayHeight(dpy
, sc
);
168 /* --- Do the output thing --- */
170 print_var("XWIDTH", wd
);
171 print_var("XHEIGHT", ht
);
178 /*----- That's all, folks -------------------------------------------------*/