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/awesome-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 void
  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         exit(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     globalconf.fg = draw_color_new(globalconf.display, DefaultScreen(globalconf.display),
 108                                    cfg_getstr(cfg_colors, "normal_fg"));
 109     globalconf.bg = draw_color_new(globalconf.display, DefaultScreen(globalconf.display),
 110                                    cfg_getstr(cfg_colors, "normal_bg"));
 111
 112     /* font */
 113     globalconf.font = XftFontOpenName(globalconf.display, DefaultScreen(globalconf.display),
 114                                       cfg_getstr(cfg_general, "font"));
 115
 116     p_delete(&confpath);
 117 }
 118
 119 static void
 120 exit_on_signal(int sig __attribute__ ((unused)))
 121 {
 122     running = False;
 123 }
 124
 125 int
 126 main(int argc, char **argv)
 127 {
 128     Display *disp;
 129     SimpleWindow *sw;
 130     DrawCtx *ctx;
 131     XEvent ev;
 132     Area geometry = { 0, 0, 200, 50, NULL },
 133          icon_geometry = { -1, -1, -1, -1, NULL };
 134     int opt;
 135     int delay = 0;
 136     char *configfile = NULL;
 137     static struct option long_options[] =
 138     {
 139         {"help",    0, NULL, 'h'},
 140         {"version", 0, NULL, 'v'},
 141         {NULL,      0, NULL, 0}
 142     };
 143
 144     if(!(disp = XOpenDisplay(NULL)))
 145         eprint("unable to open display");
 146
 147     globalconf.display = disp;
 148
 149     while((opt = getopt_long(argc, argv, "vhf:b:x:y:n:c:d:",
 150                              long_options, NULL)) != -1)
 151         switch(opt)
 152         {
 153           case 'd':
 154             delay = atoi(optarg);
 155             break;
 156           case 'v':
 157             eprint_version(PROGNAME);
 158             break;
 159           case 'x':
 160             geometry.x = atoi(optarg);
 161             break;
 162           case 'y':
 163             geometry.y = atoi(optarg);
 164             break;
 165           case 'h':
 166             exit_help(EXIT_SUCCESS);
 167             break;
 168           case 'c':
 169             configfile = a_strdup(optarg);
 170             break;
 171         }
 172
 173     if(argc - optind < 1)
 174         exit_help(EXIT_FAILURE);
 175
 176     config_parse(configfile);
 177
 178     geometry.width = draw_textwidth(disp, globalconf.font, argv[optind]);
 179     geometry.height = globalconf.font->height * 1.5;
 180
 181     if(argc - optind >= 2)
 182     {
 183         icon_geometry = draw_get_image_size(argv[optind + 1]);
 184         if(icon_geometry.width <= 0 || icon_geometry.height <= 0)
 185             eprint("invalid image\n");
 186         else
 187             geometry.width += icon_geometry.width
 188                 * ((double) globalconf.font->height / (double) icon_geometry.height);
 189     }
 190
 191     sw = simplewindow_new(disp, DefaultScreen(disp),
 192                           geometry.x, geometry.y, geometry.width, geometry.height, 0);
 193
 194     XStoreName(disp, sw->window, PROGNAME);
 195
 196     ctx = draw_context_new(disp, DefaultScreen(disp),
 197                            geometry.width, geometry.height, sw->drawable);
 198
 199     geometry.x = geometry.y = 0;
 200     draw_text(ctx, geometry, AlignRight,
 201               0, globalconf.font, argv[optind], globalconf.fg, globalconf.bg);
 202
 203     if(icon_geometry.width > 0 && icon_geometry.height > 0)
 204         draw_image(ctx, 0, (geometry.height / 2) - (globalconf.font->height / 2),
 205                    globalconf.font->height,
 206                    argv[optind + 1]);
 207
 208     p_delete(&ctx);
 209
 210     simplewindow_refresh_drawable(sw, DefaultScreen(disp));
 211
 212     XMapRaised(disp, sw->window);
 213     XSync(disp, False);
 214
 215     signal(SIGALRM, &exit_on_signal);
 216     alarm(delay);
 217
 218     while(running)
 219     {
 220        if(XPending(disp))
 221        {
 222            XNextEvent(disp, &ev);
 223            switch(ev.type)
 224            {
 225              case ButtonPress:
 226              case KeyPress:
 227                running = False;
 228              case Expose:
 229                simplewindow_refresh_drawable(sw, DefaultScreen(disp));
 230                break;
 231              default:
 232                break;
 233            }
 234        }
 235        sleep(0.1);
 236     }
 237
 238     simplewindow_delete(sw);
 239     XCloseDisplay(disp);
 240
 241     return EXIT_SUCCESS;
 242 }
 243
 244 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80