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     /** Draw shadow_offset under text */
  57     Bool shadow_offset;
  58 } AwesomeMsgConf;
  59
  60 static AwesomeMsgConf globalconf;
  61
  62 static void __attribute__ ((noreturn))
  63 exit_help(int exit_code)
  64 {
  65     FILE *outfile = (exit_code == EXIT_SUCCESS) ? stdout : stderr;
  66     fprintf(outfile, "Usage: %s [-x xcoord] [-y ycoord] [-d delay] <message> <icon>\n",
  67             PROGNAME);
  68     exit(exit_code);
  69 }
  70
  71 static int
  72 config_parse(const char *confpatharg)
  73 {
  74     int ret;
  75     char *confpath;
  76     cfg_t *cfg, *cfg_screen, *cfg_general, *cfg_colors;
  77
  78     if(!confpatharg)
  79         confpath = config_file();
  80     else
  81         confpath = a_strdup(confpatharg);
  82
  83     cfg = cfg_init(awesome_opts, CFGF_NONE);
  84
  85     switch((ret = cfg_parse(cfg, confpath)))
  86     {
  87       case CFG_FILE_ERROR:
  88         perror("awesome-message: parsing configuration file failed");
  89         break;
  90       case CFG_PARSE_ERROR:
  91         cfg_error(cfg, "awesome: parsing configuration file %s failed.\n", confpath);
  92         break;
  93     }
  94
  95     if(ret)
  96         return ret;
  97
  98     /* get global screen section */
  99     cfg_screen = cfg_getsec(cfg, "screen");
 100
 101     if(!cfg_screen)
 102         eprint("parsing configuration file failed, no screen section found\n");
 103
 104     /* get colors and general section */
 105     cfg_general = cfg_getsec(cfg_screen, "general");
 106     cfg_colors = cfg_getsec(cfg_screen, "colors");
 107
 108     /* colors */
 109     draw_color_new(globalconf.display, DefaultScreen(globalconf.display),
 110                    cfg_getstr(cfg_colors, "normal_fg"),
 111                    &globalconf.fg);
 112     draw_color_new(globalconf.display, DefaultScreen(globalconf.display),
 113                    cfg_getstr(cfg_colors, "normal_bg"),
 114                    &globalconf.bg);
 115
 116     globalconf.shadow_offset = cfg_getint(cfg_general, "text_shadow_offset");
 117
 118     /* font */
 119     globalconf.font = XftFontOpenName(globalconf.display, DefaultScreen(globalconf.display),
 120                                       cfg_getstr(cfg_general, "font"));
 121
 122     p_delete(&confpath);
 123
 124     return ret;
 125 }
 126
 127 static void
 128 exit_on_signal(int sig __attribute__ ((unused)))
 129 {
 130     running = False;
 131 }
 132
 133 int
 134 main(int argc, char **argv)
 135 {
 136     Display *disp;
 137     SimpleWindow *sw;
 138     DrawCtx *ctx;
 139     XEvent ev;
 140     Area geometry = { 0, 0, 200, 50, NULL },
 141          icon_geometry = { -1, -1, -1, -1, NULL };
 142     int opt, ret;
 143     int delay = 0;
 144     char *configfile = NULL;
 145     static struct option long_options[] =
 146     {
 147         {"help",    0, NULL, 'h'},
 148         {"version", 0, NULL, 'v'},
 149         {NULL,      0, NULL, 0}
 150     };
 151
 152     if(!(disp = XOpenDisplay(NULL)))
 153         eprint("unable to open display");
 154
 155     globalconf.display = disp;
 156
 157     while((opt = getopt_long(argc, argv, "vhf:b:x:y:n:c:d:",
 158                              long_options, NULL)) != -1)
 159         switch(opt)
 160         {
 161           case 'd':
 162             delay = atoi(optarg);
 163             break;
 164           case 'v':
 165             eprint_version(PROGNAME);
 166             break;
 167           case 'x':
 168             geometry.x = atoi(optarg);
 169             break;
 170           case 'y':
 171             geometry.y = atoi(optarg);
 172             break;
 173           case 'h':
 174             exit_help(EXIT_SUCCESS);
 175             break;
 176           case 'c':
 177             configfile = a_strdup(optarg);
 178             break;
 179         }
 180
 181     if(argc - optind < 1)
 182         exit_help(EXIT_FAILURE);
 183
 184     if((ret = config_parse(configfile)))
 185         return ret;
 186
 187     geometry.width = draw_textwidth(disp, globalconf.font, argv[optind]);
 188     geometry.height = globalconf.font->height * 1.5;
 189
 190     if(argc - optind >= 2)
 191     {
 192         icon_geometry = draw_get_image_size(argv[optind + 1]);
 193         if(icon_geometry.width <= 0 || icon_geometry.height <= 0)
 194             eprint("invalid image\n");
 195         else
 196             geometry.width += icon_geometry.width
 197                 * ((double) globalconf.font->height / (double) icon_geometry.height);
 198     }
 199
 200     sw = simplewindow_new(disp, DefaultScreen(disp),
 201                           geometry.x, geometry.y, geometry.width, geometry.height, 0);
 202
 203     XStoreName(disp, sw->window, PROGNAME);
 204
 205     ctx = draw_context_new(disp, DefaultScreen(disp),
 206                            geometry.width, geometry.height, sw->drawable);
 207
 208     geometry.x = geometry.y = 0;
 209     draw_text(ctx, geometry, AlignRight,
 210               0, globalconf.font, argv[optind],
 211               globalconf.shadow_offset, globalconf.fg, globalconf.bg);
 212
 213     if(icon_geometry.width > 0 && icon_geometry.height > 0)
 214         draw_image(ctx, 0, (geometry.height / 2) - (globalconf.font->height / 2),
 215                    globalconf.font->height,
 216                    argv[optind + 1]);
 217
 218     p_delete(&ctx);
 219
 220     simplewindow_refresh_drawable(sw, DefaultScreen(disp));
 221
 222     XMapRaised(disp, sw->window);
 223     XSync(disp, False);
 224
 225     signal(SIGALRM, &exit_on_signal);
 226     alarm(delay);
 227
 228     while(running)
 229     {
 230        if(XPending(disp))
 231        {
 232            XNextEvent(disp, &ev);
 233            switch(ev.type)
 234            {
 235              case ButtonPress:
 236              case KeyPress:
 237                running = False;
 238              case Expose:
 239                simplewindow_refresh_drawable(sw, DefaultScreen(disp));
 240                break;
 241              default:
 242                break;
 243            }
 244        }
 245        usleep(100000);
 246     }
 247
 248     simplewindow_delete(sw);
 249     XCloseDisplay(disp);
 250
 251     return EXIT_SUCCESS;
 252 }
 253
 254 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80