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
  29 #include <confuse.h>
  30
  31 #include <X11/Xlib.h>
  32
  33 #include "common/swindow.h"
  34 #include "common/util.h"
  35 #include "common/version.h"
  36 #include "common/configopts.h"
  37 #include "common/xscreen.h"
  38
  39 #define PROGNAME "awesome-message"
  40
  41 static Bool running = True;
  42
  43 /** Import awesome config file format */
  44 extern cfg_opt_t awesome_opts[];
  45
  46 /** awesome-run global configuration structure */
  47 typedef struct
  48 {
  49     /** Display ref */
  50     Display *display;
  51     /** Style */
  52     style_t style;
  53 } AwesomeMsgConf;
  54
  55 static AwesomeMsgConf globalconf;
  56
  57 static void __attribute__ ((noreturn))
  58 exit_help(int exit_code)
  59 {
  60     FILE *outfile = (exit_code == EXIT_SUCCESS) ? stdout : stderr;
  61     fprintf(outfile, "Usage: %s [-x xcoord] [-y ycoord] [-d delay] <message> <icon>\n",
  62             PROGNAME);
  63     exit(exit_code);
  64 }
  65
  66 static int
  67 config_parse(int screen, const char *confpatharg)
  68 {
  69     int ret;
  70     char *confpath;
  71     cfg_t *cfg, *cfg_screen;
  72
  73     if(!confpatharg)
  74         confpath = config_file();
  75     else
  76         confpath = a_strdup(confpatharg);
  77
  78     cfg = cfg_init(awesome_opts, CFGF_NONE);
  79
  80     switch((ret = cfg_parse(cfg, confpath)))
  81     {
  82       case CFG_FILE_ERROR:
  83         perror("awesome-message: parsing configuration file failed");
  84         break;
  85       case CFG_PARSE_ERROR:
  86         cfg_error(cfg, "awesome: parsing configuration file %s failed.\n", confpath);
  87         break;
  88     }
  89
  90     if(ret)
  91         return ret;
  92
  93     /* get global screen section */
  94     if(!(cfg_screen = cfg_getnsec(cfg, "screen", screen)))
  95         if(!(cfg_screen = cfg_getsec(cfg, "screen")))
  96             eprint("parsing configuration file failed, no screen section found\n");
  97
  98     /* style */
  99     draw_style_init(globalconf.display, DefaultScreen(globalconf.display),
 100                     cfg_getsec(cfg_getsec(cfg_screen, "styles"), "normal"),
 101                     &globalconf.style, NULL);
 102
 103     if(!globalconf.style.font)
 104         eprint("no default font available\n");
 105
 106     p_delete(&confpath);
 107
 108     return ret;
 109 }
 110
 111 static void
 112 exit_on_signal(int sig __attribute__ ((unused)))
 113 {
 114     running = False;
 115 }
 116
 117 int
 118 main(int argc, char **argv)
 119 {
 120     Display *disp;
 121     SimpleWindow *sw;
 122     DrawCtx *ctx;
 123     XEvent ev;
 124     area_t geometry = { 0, 0, 200, 50, NULL, NULL },
 125          icon_geometry = { -1, -1, -1, -1, NULL, NULL };
 126     int opt, i, x, y, ret, screen = 0, delay = 0;
 127     unsigned int ui;
 128     char *configfile = NULL;
 129     ScreensInfo *si;
 130     Window dummy;
 131     static struct option long_options[] =
 132     {
 133         {"help",    0, NULL, 'h'},
 134         {"version", 0, NULL, 'v'},
 135         {NULL,      0, NULL, 0}
 136     };
 137
 138     if(!(disp = XOpenDisplay(NULL)))
 139         eprint("unable to open display");
 140
 141     globalconf.display = disp;
 142
 143     while((opt = getopt_long(argc, argv, "vhf:b:x:y:n:c:d:",
 144                              long_options, NULL)) != -1)
 145         switch(opt)
 146         {
 147           case 'd':
 148             delay = atoi(optarg);
 149             break;
 150           case 'v':
 151             eprint_version(PROGNAME);
 152             break;
 153           case 'x':
 154             geometry.x = atoi(optarg);
 155             break;
 156           case 'y':
 157             geometry.y = atoi(optarg);
 158             break;
 159           case 'h':
 160             exit_help(EXIT_SUCCESS);
 161             break;
 162           case 'c':
 163             configfile = a_strdup(optarg);
 164             break;
 165         }
 166
 167     if(argc - optind < 1)
 168         exit_help(EXIT_FAILURE);
 169
 170     si = screensinfo_new(disp);
 171     if(si->xinerama_is_active)
 172     {
 173         if(XQueryPointer(disp, RootWindow(disp, DefaultScreen(disp)),
 174                          &dummy, &dummy, &x, &y, &i, &i, &ui))
 175             screen = screen_get_bycoord(si, 0, x, y);
 176     }
 177     else
 178         screen = DefaultScreen(disp);
 179
 180     if((ret = config_parse(screen, configfile)))
 181         return ret;
 182
 183     geometry.width = draw_textwidth(disp, globalconf.style.font, argv[optind]);
 184     geometry.height = globalconf.style.font->height * 1.5;
 185
 186     if(argc - optind >= 2)
 187     {
 188         icon_geometry = draw_get_image_size(argv[optind + 1]);
 189         if(icon_geometry.width <= 0 || icon_geometry.height <= 0)
 190             eprint("invalid image\n");
 191         else
 192             geometry.width += icon_geometry.width
 193                 * ((double) globalconf.style.font->height / (double) icon_geometry.height);
 194     }
 195
 196     sw = simplewindow_new(disp, DefaultScreen(disp),
 197                           geometry.x, geometry.y, geometry.width, geometry.height, 0);
 198
 199     XStoreName(disp, sw->window, PROGNAME);
 200
 201     ctx = draw_context_new(disp, DefaultScreen(disp),
 202                            geometry.width, geometry.height, sw->drawable);
 203
 204     geometry.x = geometry.y = 0;
 205     draw_text(ctx, geometry, AlignRight, 0,argv[optind], globalconf.style);
 206
 207     if(icon_geometry.width > 0 && icon_geometry.height > 0)
 208         draw_image(ctx, 0, (geometry.height / 2) - (globalconf.style.font->height / 2),
 209                    globalconf.style.font->height, argv[optind + 1]);
 210
 211     p_delete(&ctx);
 212
 213     simplewindow_refresh_drawable(sw, DefaultScreen(disp));
 214
 215     XMapRaised(disp, sw->window);
 216     XSync(disp, False);
 217
 218     signal(SIGALRM, &exit_on_signal);
 219     alarm(delay);
 220
 221     while(running)
 222     {
 223        if(XPending(disp))
 224        {
 225            XNextEvent(disp, &ev);
 226            switch(ev.type)
 227            {
 228              case ButtonPress:
 229              case KeyPress:
 230                running = False;
 231              case Expose:
 232                simplewindow_refresh_drawable(sw, DefaultScreen(disp));
 233                break;
 234              default:
 235                break;
 236            }
 237        }
 238        usleep(100000);
 239     }
 240
 241     simplewindow_delete(sw);
 242     XCloseDisplay(disp);
 243
 244     return EXIT_SUCCESS;
 245 }
 246
 247 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80