WPrefs.app/main.c

   1 /*
   2  *  WPrefs - Window Maker Preferences Program
   3  *
   4  *  Copyright (c) 1998-2003 Alfredo K. Kojima
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License along
  17  *  with this program; if not, write to the Free Software Foundation, Inc.,
  18  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  */
  20
  21 #include "WPrefs.h"
  22
  23 #include <assert.h>
  24
  25 #include <X11/Xlocale.h>
  26
  27 #include <sys/wait.h>
  28 #include <unistd.h>
  29
  30 char *NOptionValueChanged = "NOptionValueChanged";
  31
  32 extern void Initialize(WMScreen * scr);
  33
  34 #define MAX_DEATHS      64
  35
  36 struct {
  37         pid_t pid;
  38         void *data;
  39         void (*handler) (void *);
  40 } DeadHandlers[MAX_DEATHS];
  41
  42 static pid_t DeadChildren[MAX_DEATHS];
  43 static int DeadChildrenCount = 0;
  44
  45 void wAbort(Bool foo)
  46 {
  47         exit(1);
  48 }
  49
  50 static void print_help(char *progname)
  51 {
  52         printf(_("usage: %s [options]\n"), progname);
  53         puts(_("options:"));
  54         puts(_(" -display <display>     display to be used"));
  55         puts(_(" --version              print version number and exit"));
  56         puts(_(" --help         print this message and exit"));
  57 }
  58
  59 #if 0
  60 static RETSIGTYPE handleDeadChild(int sig)
  61 {
  62         pid_t pid;
  63         int status;
  64
  65         pid = waitpid(-1, &status, WNOHANG);
  66         if (pid > 0) {
  67                 DeadChildren[DeadChildrenCount++] = pid;
  68         }
  69 }
  70 #endif
  71
  72 void AddDeadChildHandler(pid_t pid, void (*handler) (void *), void *data)
  73 {
  74         int i;
  75
  76         for (i = 0; i < MAX_DEATHS; i++) {
  77                 if (DeadHandlers[i].pid == 0) {
  78                         DeadHandlers[i].pid = pid;
  79                         DeadHandlers[i].handler = handler;
  80                         DeadHandlers[i].data = data;
  81                         break;
  82                 }
  83         }
  84         assert(i != MAX_DEATHS);
  85 }
  86
  87 int main(int argc, char **argv)
  88 {
  89         Display *dpy;
  90         WMScreen *scr;
  91         char *locale, *path;
  92         int i;
  93         char *display_name = "";
  94
  95         wsetabort(wAbort);
  96
  97         memset(DeadHandlers, 0, sizeof(DeadHandlers));
  98
  99         WMInitializeApplication("WPrefs", &argc, argv);
 100
 101         WMSetResourcePath(RESOURCE_PATH);
 102         path = WMPathForResourceOfType("WPrefs.tiff", NULL);
 103         if (!path) {
 104                 /* maybe it is run directly from the source directory */
 105                 WMSetResourcePath(".");
 106                 path = WMPathForResourceOfType("WPrefs.tiff", NULL);
 107                 if (!path) {
 108                         WMSetResourcePath("..");
 109                 }
 110         }
 111         if (path) {
 112                 wfree(path);
 113         }
 114
 115         if (argc > 1) {
 116                 for (i = 1; i < argc; i++) {
 117                         if (strcmp(argv[i], "-version") == 0 || strcmp(argv[i], "--version") == 0) {
 118                                 printf("WPrefs (Window Maker) %s\n", VERSION);
 119                                 exit(0);
 120                         } else if (strcmp(argv[i], "-display") == 0) {
 121                                 i++;
 122                                 if (i >= argc) {
 123                                         wwarning(_("too few arguments for %s"), argv[i - 1]);
 124                                         exit(0);
 125                                 }
 126                                 display_name = argv[i];
 127                         } else {
 128                                 print_help(argv[0]);
 129                                 exit(0);
 130                         }
 131                 }
 132         }
 133
 134         locale = getenv("LANG");
 135         setlocale(LC_ALL, "");
 136
 137 #ifdef I18N
 138         if (getenv("NLSPATH"))
 139                 bindtextdomain("WPrefs", getenv("NLSPATH"));
 140         else
 141                 bindtextdomain("WPrefs", LOCALEDIR);
 142         bind_textdomain_codeset("WPrefs", "UTF-8");
 143         textdomain("WPrefs");
 144
 145         if (!XSupportsLocale()) {
 146                 wwarning(_("X server does not support locale"));
 147         }
 148         if (XSetLocaleModifiers("") == NULL) {
 149                 wwarning(_("cannot set locale modifiers"));
 150         }
 151 #endif
 152
 153         dpy = XOpenDisplay(display_name);
 154         if (!dpy) {
 155                 wfatal(_("could not open display %s"), XDisplayName(display_name));
 156                 exit(0);
 157         }
 158 #if 0
 159         XSynchronize(dpy, 1);
 160 #endif
 161         scr = WMCreateScreen(dpy, DefaultScreen(dpy));
 162         if (!scr) {
 163                 wfatal(_("could not initialize application"));
 164                 exit(0);
 165         }
 166
 167         WMPLSetCaseSensitive(False);
 168
 169         Initialize(scr);
 170
 171         while (1) {
 172                 XEvent event;
 173
 174                 WMNextEvent(dpy, &event);
 175
 176                 while (DeadChildrenCount-- > 0) {
 177                         int i;
 178
 179                         for (i = 0; i < MAX_DEATHS; i++) {
 180                                 if (DeadChildren[i] == DeadHandlers[i].pid) {
 181                                         (*DeadHandlers[i].handler) (DeadHandlers[i].data);
 182                                         DeadHandlers[i].pid = 0;
 183                                 }
 184                         }
 185                 }
 186
 187                 WMHandleEvent(&event);
 188         }
 189 }