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
  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     /** Font to use */
  51     XftFont *font;
  52     /** Foreground color */
  53     XColor fg;
  54     /** Background color */
  55     XColor bg;
  56 } AwesomeMsgConf;
  57
  58 static AwesomeMsgConf globalconf;
  59
  60 static void __attribute__ ((noreturn))
  61 exit_help(int exit_code)
  62 {
  63     FILE *outfile = (exit_code == EXIT_SUCCESS) ? stdout : stderr;
  64     fprintf(outfile, "Usage: %s [-x xcoord] [-y ycoord] [-d delay] <message> <icon>\n",
  65             PROGNAME);
  66     exit(exit_code);
  67 }
  68
  69 static int
  70 config_parse(const char *confpatharg)
  71 {
  72     int ret;
  73     char *confpath;
  74     cfg_t *cfg, *cfg_screen, *cfg_general, *cfg_colors;
  75
  76     if(!confpatharg)
  77         confpath = config_file();
  78     else
  79         confpath = a_strdup(confpatharg);
  80
  81     cfg = cfg_init(awesome_opts, CFGF_NONE);
  82
  83     switch((ret = cfg_parse(cfg, confpath)))
  84     {
  85       case CFG_FILE_ERROR:
  86         perror("awesome-message: parsing configuration file failed");
  87         break;
  88       case CFG_PARSE_ERROR:
  89         cfg_error(cfg, "awesome: parsing configuration file %s failed.\n", confpath);
  90         break;
  91     }
  92
  93     if(ret)
  94         return ret;
  95
  96     /* get global screen section */
  97     cfg_screen = cfg_getsec(cfg, "screen");
  98
  99     if(!cfg_screen)
 100         eprint("parsing configuration file failed, no screen section found\n");
 101
 102     /* get colors and general section */
 103     cfg_general = cfg_getsec(cfg_screen, "general");
 104     cfg_colors = cfg_getsec(cfg_screen, "colors");
 105
 106     /* colors */
 107     draw_color_new(globalconf.display, DefaultScreen(globalconf.display),
 108                    cfg_getstr(cfg_colors, "normal_fg"),
 109                    &globalconf.fg);
 110     draw_color_new(globalconf.display, DefaultScreen(globalconf.display),
 111                    cfg_getstr(cfg_colors, "normal_bg"),
 112                    &globalconf.bg);
 113
 114     /* font */
 115     globalconf.font = XftFontOpenName(globalconf.display, DefaultScreen(globalconf.display),
 116                                       cfg_getstr(cfg_general, "font"));
 117
 118     p_delete(&confpath);
 119
 120     return ret;
 121 }
 122
 123 static void
 124 exit_on_signal(int sig __attribute__ ((unused)))
 125 {
 126     running = False;
 127 }
 128
 129 int
 130 main(int argc, char **argv)
 131 {
 132     Display *disp;
 133     SimpleWindow *sw;
 134     DrawCtx *ctx;
 135     XEvent ev;
 136     Area geometry = { 0, 0, 200, 50, NULL },
 137          icon_geometry = { -1, -1, -1, -1, NULL };
 138     int opt, ret;
 139     int delay = 0;
 140     char *configfile = NULL;
 141     static struct option long_options[] =
 142     {
 143         {"help",    0, NULL, 'h'},
 144         {"version", 0, NULL, 'v'},
 145         {NULL,      0, NULL, 0}
 146     };
 147
 148     if(!(disp = XOpenDisplay(NULL)))
 149         eprint("unable to open display");
 150
 151     globalconf.display = disp;
 152
 153     while((opt = getopt_long(argc, argv, "vhf:b:x:y:n:c:d:",
 154                              long_options, NULL)) != -1)
 155         switch(opt)
 156         {
 157           case 'd':
 158             delay = atoi(optarg);
 159             break;
 160           case 'v':
 161             eprint_version(PROGNAME);
 162             break;
 163           case 'x':
 164             geometry.x = atoi(optarg);
 165             break;
 166           case 'y':
 167             geometry.y = atoi(optarg);
 168             break;
 169           case 'h':
 170             exit_help(EXIT_SUCCESS);
 171             break;
 172           case 'c':
 173             configfile = a_strdup(optarg);
 174             break;
 175         }
 176
 177     if(argc - optind < 1)
 178         exit_help(EXIT_FAILURE);
 179
 180     if((ret = config_parse(configfile)))
 181         return ret;
 182
 183     geometry.width = draw_textwidth(disp, globalconf.font, argv[optind]);
 184     geometry.height = globalconf.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.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,
 206               0, globalconf.font, argv[optind], globalconf.fg, globalconf.bg);
 207
 208     if(icon_geometry.width > 0 && icon_geometry.height > 0)
 209         draw_image(ctx, 0, (geometry.height / 2) - (globalconf.font->height / 2),
 210                    globalconf.font->height,
 211                    argv[optind + 1]);
 212
 213     p_delete(&ctx);
 214
 215     simplewindow_refresh_drawable(sw, DefaultScreen(disp));
 216
 217     XMapRaised(disp, sw->window);
 218     XSync(disp, False);
 219
 220     signal(SIGALRM, &exit_on_signal);
 221     alarm(delay);
 222
 223     while(running)
 224     {
 225        if(XPending(disp))
 226        {
 227            XNextEvent(disp, &ev);
 228            switch(ev.type)
 229            {
 230              case ButtonPress:
 231              case KeyPress:
 232                running = False;
 233              case Expose:
 234                simplewindow_refresh_drawable(sw, DefaultScreen(disp));
 235                break;
 236              default:
 237                break;
 238            }
 239        }
 240        usleep(100000);
 241     }
 242
 243     simplewindow_delete(sw);
 244     XCloseDisplay(disp);
 245
 246     return EXIT_SUCCESS;
 247 }
 248
 249 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80