mdw@git.distorted.org.uk Git - xtoys/blob - xmsg.c

   1 /* -*-c-*-
   2  *
   3  * $Id: xmsg.c,v 1.2 2004/04/08 01:36:29 mdw Exp $
   4  *
   5  * Display a message to the user
   6  *
   7  * (c) 2001 Straylight/Edgeware
   8  */
   9
  10 /*----- Licensing notice --------------------------------------------------*
  11  *
  12  * This file is part of the Edgeware X tools collection.
  13  *
  14  * X tools is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License as published by
  16  * the Free Software Foundation; either version 2 of the License, or
  17  * (at your option) any later version.
  18  *
  19  * X tools is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with X tools; if not, write to the Free Software Foundation,
  26  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  27  */
  28
  29 /*----- Header files ------------------------------------------------------*/
  30
  31 #include <ctype.h>
  32 #include <errno.h>
  33 #include <stdio.h>
  34 #include <stdlib.h>
  35 #include <string.h>
  36
  37 #include <mLib/darray.h>
  38 #include <mLib/dstr.h>
  39 #include <mLib/mdwopt.h>
  40 #include <mLib/quis.h>
  41 #include <mLib/report.h>
  42
  43 #include <mgLib/msg.h>
  44
  45 /*----- Data structures ---------------------------------------------------*/
  46
  47 typedef struct button {
  48   unsigned f;
  49   const char *text;
  50 } button;
  51
  52 #define f_cancel 1u
  53 #define f_default 2u
  54
  55 DA_DECL(button_v, button);
  56
  57 /*----- Main code ---------------------------------------------------------*/
  58
  59 /* --- @version@ --- */
  60
  61 static void version(FILE *fp)
  62 {
  63   fprintf(fp, "%s (xtoys version " VERSION ")\n", QUIS);
  64 }
  65
  66 /* --- @usage@ --- */
  67
  68 static void usage(FILE *fp)
  69 {
  70   fprintf(fp, "Usage: %s [-f] [-t TITLE] [-c|d BUTTON] MSG [BUTTON...]\n",
  71           QUIS);
  72 }
  73
  74 /* --- @findbutton@ --- */
  75
  76 static button *findbutton(button_v *bv, const char *tag)
  77 {
  78   size_t i, n = DA_LEN(bv);
  79   button *b = DA(bv);
  80   char *q;
  81
  82   if (!tag)
  83     return (0);
  84   for (i = 0; i < n; i++) {
  85     if (strcmp(b[i].text, tag) == 0)
  86       return (&b[i]);
  87   }
  88   while (*tag && isspace((unsigned char)*tag))
  89     tag++;
  90   i = strtoul(tag, &q, 0);
  91   if (!*q && i < n)
  92     return (&b[i]);
  93   die(EXIT_FAILURE, "unknown button `%s'", tag);
  94   return (0);
  95 }
  96
  97
  98 /* --- @main@ --- *
  99  *
 100  * Main program.
 101  */
 102
 103 int main(int argc, char *argv[])
 104 {
 105   const char *title;
 106   const char *message;
 107   const char *b_cancel = 0, *b_default = 0;
 108   button_v bv = DA_INIT;
 109   button *b;
 110   dstr d = DSTR_INIT;
 111   size_t n, i;
 112   unsigned f = 0;
 113
 114 #define f_focus 256u
 115
 116   ego(argv[0]);
 117   gtk_init(&argc, &argv);
 118
 119   /* --- Parse options --- */
 120
 121   title = QUIS;
 122   for (;;) {
 123     static struct option opt[] = {
 124       { "help",         0,              0,      'h' },
 125       { "usage",        0,              0,      'u' },
 126       { "version",      0,              0,      'v' },
 127       { "focus",        0,              0,      'f' },
 128       { "title",        OPTF_ARGREQ,    0,      't' },
 129       { "cancel",       OPTF_ARGREQ,    0,      'c' },
 130       { "default",      OPTF_ARGREQ,    0,      'd' },
 131       { 0,              0,              0,      0 }
 132     };
 133     int i;
 134
 135     i = getopt_long(argc, argv, "huv t:c:d:q", opt, 0);
 136
 137     if (i < 0)
 138       break;
 139
 140     switch (i) {
 141       case 'h':
 142         version(stdout);
 143         fputs("\n", stdout);
 144         usage(stdout);
 145         fputs(
 146 "\n"
 147 "Pops up a message box containing a message and some buttons, reporting\n"
 148 "which button was selected.\n"
 149 "\n"
 150 "Options available are:\n"
 151 "\n"
 152 "-h, --help             Display this help text\n"
 153 "-u, --usage            Display a short usage summary\n"
 154 "-v, --version          Display the program's version number\n"
 155 "\n"
 156 "-f, --focus            Give the window the focus (obsolete mdw thing)\n"
 157 "-t, --title=TITLE      Select the title string in the message box\n"
 158 "-c, --cancel=BUTTON    Select which button is to have the Cancel action\n"
 159 "-d, --default=BUTTON   Select which button is the default\n",
 160           stdout);
 161         exit(0);
 162         break;
 163       case 'u':
 164         usage(stdout);
 165         exit(0);
 166         break;
 167       case 'v':
 168         version(stdout);
 169         exit(0);
 170         break;
 171
 172       case 'f':
 173         f |= f_focus;
 174         break;
 175       case 't':
 176         title = optarg;
 177         break;
 178       case 'c':
 179         b_cancel = optarg;
 180         break;
 181       case 'd':
 182         b_default = optarg;
 183         break;
 184
 185       default:
 186         usage(stderr);
 187         exit(EXIT_FAILURE);
 188     }
 189   }
 190
 191   if (optind >= argc) {
 192     usage(stderr);
 193     exit(EXIT_FAILURE);
 194   }
 195   message = argv[optind++];
 196
 197   if (optind >= argc) {
 198     DA_ENSURE(&bv, 1);
 199     b = &DA(&bv)[0];
 200     b->f = 0;
 201     b->text = "OK";
 202     DA_UNSAFE_EXTEND(&bv, 1);
 203   } else for (; optind < argc; optind++) {
 204     DA_ENSURE(&bv, 1);
 205     b = &DA(&bv)[DA_LEN(&bv)];
 206     b->f = 0;
 207     b->text = argv[optind];
 208     DA_UNSAFE_EXTEND(&bv, 1);
 209   }
 210
 211   if ((b = findbutton(&bv, b_cancel)) != 0)
 212     b->f |= f_cancel;
 213   else
 214     DA(&bv)[DA_LEN(&bv) - 1].f |= f_cancel;
 215
 216   if ((b = findbutton(&bv, b_default)) != 0)
 217     b->f |= f_default;
 218   else
 219     DA(&bv)[0].f |= f_default;
 220
 221   b = DA(&bv);
 222   n = DA_LEN(&bv);
 223   if (f & f_focus)
 224     DPUTC(&d, '!');
 225   for (i = 0; i < n; i++) {
 226     if (b[i].f & f_default)
 227       DPUTC(&d, ':');
 228     if (b[i].f & f_cancel)
 229       DPUTC(&d, '~');
 230     DPUTS(&d, b[i].text);
 231     DPUTC(&d, ',');
 232   }
 233   d.buf[--d.len] = 0;
 234
 235   i = msg(title, d.buf, "%s", message);
 236   if (n > 1)
 237     puts(b[i].text);
 238   return (0);
 239 }
 240
 241 /*----- That's all, folks -------------------------------------------------*/