awesome-message.c

   1 /*
   2  * awesome-message.c - message window for awesome
   3  *
   4  * Copyright © 2008 Julien Danjou <julien@danjou.info>
   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
  22 #define _GNU_SOURCE
  23 #include <getopt.h>
  24
  25 #include <signal.h>
  26 #include <unistd.h>
  27 #include <stdlib.h>
  28 #include <errno.h>
  29
  30 #include <X11/Xlib.h>
  31
  32 #include "common/swindow.h"
  33 #include "common/util.h"
  34 #include "common/version.h"
  35 #include "common/configopts.h"
  36 #include "common/xscreen.h"
  37
  38 #define PROGNAME "awesome-message"
  39
  40 static Bool running = True;
  41
  42 /** Import awesome config file format */
  43 extern cfg_opt_t awesome_opts[];
  44
  45 /** awesome-run global configuration structure */
  46 typedef struct
  47 {
  48     /** Display ref */
  49     Display *display;
  50     /** Style */
  51     style_t style;
  52 } AwesomeMsgConf;
  53
  54 static AwesomeMsgConf globalconf;
  55
  56 static void __attribute__ ((noreturn))
  57 exit_help(int exit_code)
  58 {
  59     FILE *outfile = (exit_code == EXIT_SUCCESS) ? stdout : stderr;
  60     fprintf(outfile, "Usage: %s [-x xcoord] [-y ycoord] [-d delay] <message> <icon>\n",
  61             PROGNAME);
  62     exit(exit_code);
  63 }
  64
  65 static int
  66 config_parse(int screen, const char *confpatharg)
  67 {
  68     int ret;
  69     char *confpath;
  70     cfg_t *cfg, *cfg_screen;
  71
  72     if(!confpatharg)
  73         confpath = config_file();
  74     else
  75         confpath = a_strdup(confpatharg);
  76
  77     cfg = cfg_new();
  78
  79     switch((ret = cfg_parse(cfg, confpath)))
  80     {
  81       case CFG_FILE_ERROR:
  82         warn("parsing configuration file failed: %s\n", strerror(errno));
  83         break;
  84       case CFG_PARSE_ERROR:
  85         cfg_error(cfg, "awesome: parsing configuration file %s failed.\n", confpath);
  86         break;
  87     }
  88
  89     if(ret)
  90         return ret;
  91
  92     /* get global screen section */
  93     if(!(cfg_screen = cfg_getnsec(cfg, "screen", screen)))
  94         if(!(cfg_screen = cfg_getsec(cfg, "screen")))
  95             eprint("parsing configuration file failed, no screen section found\n");
  96
  97     /* style */
  98     draw_style_init(globalconf.display, DefaultScreen(globalconf.display),
  99                     cfg_getsec(cfg_getsec(cfg_screen, "styles"), "normal"),
 100                     &globalconf.style, NULL);
 101
 102     if(!globalconf.style.font)
 103         eprint("no default font available\n");
 104
 105     p_delete(&confpath);
 106
 107     return ret;
 108 }
 109
 110 static void
 111 exit_on_signal(int sig __attribute__ ((unused)))
 112 {
 113     running = False;
 114 }
 115
 116 int
 117 main(int argc, char **argv)
 118 {
 119     SimpleWindow *sw;
 120     DrawCtx *ctx;
 121     XEvent ev;
 122     area_t geometry = { 0, 0, 200, 50, NULL, NULL },
 123          icon_geometry = { -1, -1, -1, -1, NULL, NULL };
 124     int opt, i, x, y, ret, screen = 0, delay = 0;
 125     unsigned int ui;
 126     char *configfile = NULL;
 127     ScreensInfo *si;
 128     Window dummy;
 129     static struct option long_options[] =
 130     {
 131         {"help",    0, NULL, 'h'},
 132         {"version", 0, NULL, 'v'},
 133         {NULL,      0, NULL, 0}
 134     };
 135
 136     while((opt = getopt_long(argc, argv, "vhf:b:x:y:n:c:d:",
 137                              long_options, NULL)) != -1)
 138         switch(opt)
 139         {
 140           case 'd':
 141             if((delay = atoi(optarg)) <= 0)
 142                 delay = 1;
 143             break;
 144           case 'v':
 145             eprint_version(PROGNAME);
 146             break;
 147           case 'x':
 148             geometry.x = atoi(optarg);
 149             break;
 150           case 'y':
 151             geometry.y = atoi(optarg);
 152             break;
 153           case 'h':
 154             exit_help(EXIT_SUCCESS);
 155             break;
 156           case 'c':
 157             configfile = a_strdup(optarg);
 158             break;
 159         }
 160
 161     if(argc - optind < 1)
 162         exit_help(EXIT_FAILURE);
 163
 164     if(!(globalconf.display = XOpenDisplay(NULL)))
 165         eprint("unable to open display");
 166
 167     si = screensinfo_new(globalconf.display);
 168     if(si->xinerama_is_active)
 169     {
 170         if(XQueryPointer(globalconf.display, RootWindow(globalconf.display, DefaultScreen(globalconf.display)),
 171                          &dummy, &dummy, &x, &y, &i, &i, &ui))
 172             screen = screen_get_bycoord(si, 0, x, y);
 173     }
 174     else
 175         screen = DefaultScreen(globalconf.display);
 176
 177     if((ret = config_parse(screen, configfile)))
 178         return ret;
 179
 180     geometry.width = draw_textwidth(globalconf.display, globalconf.style.font, argv[optind]);
 181     geometry.height = globalconf.style.font->height * 1.5;
 182
 183     if(argc - optind >= 2)
 184     {
 185         icon_geometry = draw_get_image_size(argv[optind + 1]);
 186         if(icon_geometry.width <= 0 || icon_geometry.height <= 0)
 187             eprint("invalid image\n");
 188         else
 189             geometry.width += icon_geometry.width
 190                 * ((double) globalconf.style.font->height / (double) icon_geometry.height);
 191     }
 192
 193     sw = simplewindow_new(globalconf.display, DefaultScreen(globalconf.display),
 194                           geometry.x, geometry.y, geometry.width, geometry.height, 0);
 195
 196     XStoreName(globalconf.display, sw->window, PROGNAME);
 197
 198     ctx = draw_context_new(globalconf.display, DefaultScreen(globalconf.display),
 199                            geometry.width, geometry.height, sw->drawable);
 200
 201     geometry.x = geometry.y = 0;
 202     draw_text(ctx, geometry, AlignRight, 0,argv[optind], globalconf.style);
 203
 204     if(icon_geometry.width > 0 && icon_geometry.height > 0)
 205         draw_image(ctx, 0, (geometry.height / 2) - (globalconf.style.font->height / 2),
 206                    globalconf.style.font->height, argv[optind + 1]);
 207
 208     p_delete(&ctx);
 209
 210     simplewindow_refresh_drawable(sw, DefaultScreen(globalconf.display));
 211
 212     XMapRaised(globalconf.display, sw->window);
 213     XSync(globalconf.display, False);
 214
 215     signal(SIGALRM, &exit_on_signal);
 216     alarm(delay);
 217
 218     while(running)
 219     {
 220        if(XPending(globalconf.display))
 221        {
 222            XNextEvent(globalconf.display, &ev);
 223            switch(ev.type)
 224            {
 225              case ButtonPress:
 226              case KeyPress:
 227                running = False;
 228              case Expose:
 229                simplewindow_refresh_drawable(sw, DefaultScreen(globalconf.display));
 230                break;
 231              default:
 232                break;
 233            }
 234        }
 235        usleep(100000);
 236     }
 237
 238     simplewindow_delete(&sw);
 239     XCloseDisplay(globalconf.display);
 240
 241     return EXIT_SUCCESS;
 242 }
 243
 244 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80