src/message.c

   1 /*  CAVE (Character Animation Viewer for Everyone)
   2     Copyright (C) 2001-2002 Ben Kibbey <bjk@arbornet.org>
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17 */
  18 #include <stdio.h>
  19 #include <stdlib.h>
  20 #include <stdarg.h>
  21 #include <string.h>
  22
  23 #ifdef HAVE_CONFIG_H
  24 #include <config.h>
  25 #endif
  26
  27 #include "common.h"
  28
  29 int message(const char *title, const char *prompt, const char *format, ...)
  30 {
  31     va_list ap;
  32     char *line, *s, *tmp, buf[LINE_MAX];
  33     static WINDOW *win;
  34     static PANEL *panel;
  35     int x, y, c = 0, i = 0;
  36
  37     if (!format && !title && !prompt) {
  38         del_panel(panel);
  39         delwin(win);
  40         return 0;
  41     }
  42
  43     va_start(ap, format);
  44 #ifdef HAVE_VASPRINTF
  45     vasprintf(&line, format, ap);
  46 #else
  47     line = Malloc(LINE_MAX);
  48     vsnprintf(line, LINE_MAX, format, ap);
  49 #endif
  50     va_end(ap);
  51
  52     y = CALCHEIGHT();
  53     tmp = strdup(line);
  54     strcpy(buf, line);
  55
  56     while ((s = strsep(&tmp, "\n")) != NULL) {
  57         int n = strlen(s);
  58
  59         y++;
  60
  61         if (n > i) {
  62             i = n;
  63             strcpy(buf, s);
  64         }
  65     }
  66
  67     tmp = line;
  68
  69     if (prompt && strlen(prompt) > i)
  70         x = CALCWIDTH(prompt);
  71     else
  72         x = CALCWIDTH(buf);
  73
  74     if (title && x < strlen(title))
  75         x = CALCWIDTH(title);
  76
  77     if (!prompt)
  78         y--;
  79
  80     if (!title)
  81         y--;
  82
  83     cbreak();
  84     noecho();
  85
  86     win = newwin(y, x, CALCPOSY(y), CALCPOSX(x));
  87     box(win, ACS_VLINE, ACS_HLINE);
  88     panel = new_panel(win);
  89
  90     if (title)
  91         mvwprintw(win, 0, CENTERX(x, title), "%s", title);
  92
  93     i = 1;
  94
  95     while ((s = strsep(&tmp, "\n")) != NULL)
  96         mvwaddstr(win, i++, CENTERX(x, s), s);
  97
  98     free(tmp);
  99     free(line);
 100
 101     if (prompt)
 102         mvwprintw(win, y - 2, CENTERX(x, prompt), "%s", prompt);
 103
 104     update_panels();
 105     doupdate();
 106
 107     if (prompt) {
 108         c = wgetch(win);
 109         del_panel(panel);
 110         delwin(win);
 111     }
 112
 113     return c;
 114 }