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
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  19  *  USA.
  20  */
  21
  22 #include "WPrefs.h"
  23
  24
  25 #include <assert.h>
  26
  27 #include <X11/Xlocale.h>
  28
  29 #include <sys/wait.h>
  30 #include <unistd.h>
  31
  32
  33 char *NOptionValueChanged = "NOptionValueChanged";
  34
  35 extern void Initialize(WMScreen *scr);
  36
  37 #define MAX_DEATHS      64
  38
  39 struct {
  40     pid_t pid;
  41     void *data;
  42     void (*handler)(void*);
  43 } DeadHandlers[MAX_DEATHS];
  44
  45
  46 static pid_t DeadChildren[MAX_DEATHS];
  47 static int DeadChildrenCount = 0;
  48
  49 void
  50 wAbort(Bool foo)
  51 {
  52     exit(1);
  53 }
  54
  55
  56 static void
  57 print_help(char *progname)
  58 {
  59     printf(_("usage: %s [options]\n"), progname);
  60     puts(_("options:"));
  61     puts(_(" -display <display> display to be used"));
  62     puts(_(" --version          print version number and exit"));
  63     puts(_(" --help             print this message and exit"));
  64 }
  65
  66
  67 #if 0
  68 static RETSIGTYPE
  69 handleDeadChild(int sig)
  70 {
  71     pid_t pid;
  72     int status;
  73
  74     pid = waitpid(-1, &status, WNOHANG);
  75     if (pid > 0) {
  76         DeadChildren[DeadChildrenCount++] = pid;
  77     }
  78 }
  79 #endif
  80
  81 void
  82 AddDeadChildHandler(pid_t pid, void (*handler)(void*), void *data)
  83 {
  84     int i;
  85
  86     for (i = 0; i < MAX_DEATHS; i++) {
  87         if (DeadHandlers[i].pid == 0) {
  88             DeadHandlers[i].pid = pid;
  89             DeadHandlers[i].handler = handler;
  90             DeadHandlers[i].data = data;
  91             break;
  92         }
  93     }
  94     assert(i!=MAX_DEATHS);
  95 }
  96
  97
  98 int
  99 main(int argc, char **argv)
 100 {
 101     Display *dpy;
 102     WMScreen *scr;
 103     char *locale, *path;
 104     int i;
 105     char *display_name="";
 106
 107     wsetabort(wAbort);
 108
 109     memset(DeadHandlers, 0, sizeof(DeadHandlers));
 110
 111     WMInitializeApplication("WPrefs", &argc, argv);
 112
 113     WMSetResourcePath(RESOURCE_PATH);
 114     path = WMPathForResourceOfType("WPrefs.tiff", NULL);
 115     if (!path) {
 116         /* maybe it is run directly from the source directory */
 117         WMSetResourcePath(".");
 118         path = WMPathForResourceOfType("WPrefs.tiff", NULL);
 119         if (!path) {
 120             WMSetResourcePath("..");
 121         }
 122     }
 123     if (path) {
 124         wfree(path);
 125     }
 126
 127     if (argc>1) {
 128         for (i=1; i<argc; i++) {
 129             if (strcmp(argv[i], "-version")==0
 130                 || strcmp(argv[i], "--version")==0) {
 131                 printf("WPrefs (Window Maker) %s\n", VERSION);
 132                 exit(0);
 133             } else if (strcmp(argv[i], "-display")==0) {
 134                 i++;
 135                 if (i>=argc) {
 136                     wwarning(_("too few arguments for %s"), argv[i-1]);
 137                     exit(0);
 138                 }
 139                 display_name = argv[i];
 140             } else {
 141                 print_help(argv[0]);
 142                 exit(0);
 143             }
 144         }
 145     }
 146
 147     locale = getenv("LANG");
 148     setlocale(LC_ALL, "");
 149
 150 #ifdef I18N
 151     if (getenv("NLSPATH"))
 152         bindtextdomain("WPrefs", getenv("NLSPATH"));
 153     else
 154         bindtextdomain("WPrefs", LOCALEDIR);
 155     bind_textdomain_codeset("WPrefs", "UTF-8");
 156     textdomain("WPrefs");
 157
 158     if (!XSupportsLocale()) {
 159         wwarning(_("X server does not support locale"));
 160     }
 161     if (XSetLocaleModifiers("") == NULL) {
 162         wwarning(_("cannot set locale modifiers"));
 163     }
 164 #endif
 165
 166     dpy = XOpenDisplay(display_name);
 167     if (!dpy) {
 168         wfatal(_("could not open display %s"), XDisplayName(display_name));
 169         exit(0);
 170     }
 171 #if 0
 172     XSynchronize(dpy, 1);
 173 #endif
 174     scr = WMCreateScreen(dpy, DefaultScreen(dpy));
 175     if (!scr) {
 176         wfatal(_("could not initialize application"));
 177         exit(0);
 178     }
 179
 180     WMPLSetCaseSensitive(False);
 181
 182     Initialize(scr);
 183
 184     while (1) {
 185         XEvent event;
 186
 187         WMNextEvent(dpy, &event);
 188
 189         while (DeadChildrenCount-- > 0) {
 190             int i;
 191
 192             for (i=0; i<MAX_DEATHS; i++) {
 193                 if (DeadChildren[i] == DeadHandlers[i].pid) {
 194                     (*DeadHandlers[i].handler)(DeadHandlers[i].data);
 195                     DeadHandlers[i].pid = 0;
 196                 }
 197             }
 198         }
 199
 200         WMHandleEvent(&event);
 201     }
 202 }
 203