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 <unistd.h>
  26 #include <stdlib.h>
  27
  28 #include <confuse.h>
  29
  30 #include <X11/Xlib.h>
  31
  32 #include "common/swindow.h"
  33 #include "common/util.h"
  34 #include "common/awesome-version.h"
  35 #include "common/configopts.h"
  36
  37 #define PROGNAME "awesome-message"
  38
  39 /** Import awesome config file format */
  40 extern cfg_opt_t awesome_opts[];
  41
  42 /** awesome-run global configuration structure */
  43 typedef struct
  44 {
  45     /** Display ref */
  46     Display *display;
  47     /** Font to use */
  48     XftFont *font;
  49     /** Foreground color */
  50     XColor fg;
  51     /** Background color */
  52     XColor bg;
  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] <message> <icon>\n",
  62             PROGNAME);
  63     exit(exit_code);
  64 }
  65
  66 static void
  67 config_parse(const char *confpatharg)
  68 {
  69     int ret;
  70     char *confpath;
  71     cfg_t *cfg, *cfg_screen, *cfg_general, *cfg_colors;
  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         exit(ret);
  92
  93     /* get global screen section */
  94     cfg_screen = cfg_getsec(cfg, "screen");
  95
  96     if(!cfg_screen)
  97         eprint("parsing configuration file failed, no screen section found\n");
  98
  99     /* get colors and general section */
 100     cfg_general = cfg_getsec(cfg_screen, "general");
 101     cfg_colors = cfg_getsec(cfg_screen, "colors");
 102
 103     /* colors */
 104     globalconf.fg = draw_color_new(globalconf.display, DefaultScreen(globalconf.display),
 105                                    cfg_getstr(cfg_colors, "normal_fg"));
 106     globalconf.bg = draw_color_new(globalconf.display, DefaultScreen(globalconf.display),
 107                                    cfg_getstr(cfg_colors, "normal_bg"));
 108
 109     /* font */
 110     globalconf.font = XftFontOpenName(globalconf.display, DefaultScreen(globalconf.display),
 111                                       cfg_getstr(cfg_general, "font"));
 112
 113     p_delete(&confpath);
 114 }
 115
 116 int
 117 main(int argc, char **argv)
 118 {
 119     Display *disp;
 120     SimpleWindow *sw;
 121     DrawCtx *ctx;
 122     XEvent ev;
 123     Bool running = True;
 124     Area geometry = { 0, 0, 200, 50, NULL },
 125          icon_geometry = { -1, -1, -1, -1, NULL };
 126     int opt;
 127     char *configfile = NULL;
 128     static struct option long_options[] =
 129     {
 130         {"help",    0, NULL, 'h'},
 131         {"version", 0, NULL, 'v'},
 132         {NULL,      0, NULL, 0}
 133     };
 134
 135     if(!(disp = XOpenDisplay(NULL)))
 136         eprint("unable to open display");
 137
 138     globalconf.display = disp;
 139
 140     while((opt = getopt_long(argc, argv, "vhf:b:x:y:n:c:",
 141                              long_options, NULL)) != -1)
 142         switch(opt)
 143         {
 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     config_parse(configfile);
 165
 166     geometry.width = draw_textwidth(disp, globalconf.font, argv[optind]);
 167     geometry.height = globalconf.font->height * 1.5;
 168
 169     if(argc - optind >= 2)
 170     {
 171         icon_geometry = draw_get_image_size(argv[optind + 1]);
 172         if(icon_geometry.width <= 0 || icon_geometry.height <= 0)
 173             eprint("invalid image\n");
 174         else
 175             geometry.width += icon_geometry.width
 176                 * ((double) globalconf.font->height / (double) icon_geometry.height);
 177     }
 178
 179     sw = simplewindow_new(disp, DefaultScreen(disp),
 180                           geometry.x, geometry.y, geometry.width, geometry.height, 0);
 181
 182     XStoreName(disp, sw->window, "awmessage");
 183
 184     ctx = draw_context_new(disp, DefaultScreen(disp),
 185                            geometry.width, geometry.height, sw->drawable);
 186
 187     geometry.x = geometry.y = 0;
 188     draw_text(ctx, geometry, AlignRight,
 189               0, globalconf.font, argv[optind], globalconf.fg, globalconf.bg);
 190
 191     if(icon_geometry.width > 0 && icon_geometry.height > 0)
 192         draw_image(ctx, 0, (geometry.height / 2) - (globalconf.font->height / 2),
 193                    globalconf.font->height,
 194                    argv[optind + 1]);
 195
 196     p_delete(&ctx);
 197
 198     simplewindow_refresh_drawable(sw, DefaultScreen(disp));
 199
 200     XMapRaised(disp, sw->window);
 201     XSync(disp, False);
 202
 203     while (running)
 204     {
 205        XNextEvent(disp, &ev);
 206        switch (ev.type)
 207        {
 208          case ButtonPress:
 209          case KeyPress:
 210            running = False;
 211          case Expose:
 212            simplewindow_refresh_drawable(sw, DefaultScreen(disp));
 213            break;
 214          default:
 215            break;
 216        }
 217     }
 218
 219     simplewindow_delete(sw);
 220     XCloseDisplay(disp);
 221
 222     return EXIT_SUCCESS;
 223 }
 224
 225 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80