wmmp3/main.c

   1 /*
   2  * wmmp3
   3  * Copyright (c)1999 Patrick Crosby <xb@dotfiles.com>.
   4  * This software covered by the GPL.  See COPYING file for details.
   5  *
   6  * main.c
   7  *
   8  * This is the main body of the application.  Handles all initialization
   9  * plus the X event loop.
  10  *
  11  * $Id: main.c,v 1.11 1999/10/08 22:21:32 pcrosby Exp $
  12  */
  13
  14 #include "main.h"
  15
  16 #define B_STOP 0
  17 #define B_PLAY 1
  18 #define B_BACK 2
  19 #define B_NEXT 3
  20 #define B_PREV_DIR 4
  21 #define B_RAND 5
  22 #define B_NEXT_DIR 6
  23 #define B_REPEAT 7
  24 #define B_TITLE 8
  25
  26 void loadconfig();
  27 void show_help();
  28 void show_version();
  29 int check_options(int argc, char *argv[]);
  30 int handle_button_press(int x, int y);
  31 void handle_button_release(int i);
  32
  33 struct coord {
  34     int x;
  35     int y;
  36     int w;
  37     int h;
  38 };
  39
  40 /* from Steven Jorgensen */
  41 void stripspace(char *s) {
  42     char *t;
  43     t = s + strlen(s) - 1;
  44     while (t > s && isspace(*t)) {
  45         t--;
  46     }
  47     t++;
  48     *t = '\0';
  49 }
  50
  51 int handle_button_press(int x, int y) {
  52     int i;
  53
  54     i = CheckMouseRegion(x, y);
  55     switch (i) {
  56     case B_STOP:
  57         button_down(i);
  58         button_up(B_PLAY);      /* raise play */
  59         button_up(B_PREV_DIR);  /* reactivate directory up/down */
  60         button_up(B_NEXT_DIR);
  61         stop();
  62         break;
  63     case B_PLAY:
  64         button_down(i);
  65         button_gray(B_PREV_DIR);        /* gray out directory up/down */
  66         button_gray(B_NEXT_DIR);
  67         user_play();
  68         break;
  69     case B_BACK:
  70         button_down(i);
  71         back();
  72         break;
  73     case B_NEXT:
  74         button_down(i);
  75         next();
  76         break;
  77     case B_PREV_DIR:
  78         dir_up(i);
  79         break;
  80     case B_RAND:
  81         random_toggle(i);
  82         break;
  83     case B_NEXT_DIR:
  84         dir_down(i);
  85         break;
  86     case B_REPEAT:
  87         repeat_toggle(i);
  88         break;
  89     case B_TITLE:
  90         turn_on_scroll();
  91         break;
  92     default:
  93         fprintf(stderr, "unknown button pressed\n");
  94     }
  95     RedrawWindow();
  96
  97     return(i);
  98 }
  99
 100 void handle_button_release(int i)
 101 {
 102     /* play stays down, don't mess with toggles */
 103     /* ignore song title press too */
 104     if (((i != B_PLAY) && (i != B_RAND)) &&
 105         ((i != B_REPEAT) && (i != B_TITLE))) {
 106         if (!is_playing()) {
 107             button_up(i);
 108             RedrawWindow();
 109         } else {
 110             /* don't undo gray of dir up/down */
 111             if (((i == B_STOP) || (i == B_BACK)) || (i == B_NEXT)) {
 112                 button_up(i);
 113                 RedrawWindow();
 114             }
 115         }
 116     }
 117 }
 118
 119 void loadconfig()
 120 {
 121     struct passwd *pw;
 122     char *config_filename;
 123     FILE *fp;
 124
 125     errno = 0;
 126
 127     /* set defualts in case anything fails */
 128     set_mpg123("/usr/local/bin/mpg123");
 129     set_mp3ext(".mp3");
 130     set_playlistext(".m3u");
 131
 132     pw = getpwuid(getuid());
 133     /* don't forget about the string terminator... */
 134     config_filename = (char *) malloc(sizeof(char) *
 135                                       (strlen(pw->pw_dir) + 8));
 136     sprintf(config_filename, "%s/.wmmp3", pw->pw_dir);
 137
 138
 139     fp = fopen(config_filename, "r");
 140     if (fp != NULL) {
 141         char line[256];
 142         char variable[256];
 143         char value[256];
 144
 145         fgets(line, 256, fp);
 146         while (!feof(fp)) {
 147             if ((line[0] != '#') && (line[0] != '\n')) {
 148                 if (sscanf(line, " %s = %[^\n]", variable, value) < 2) {
 149                     fprintf(stderr, "Malformed line in config file: %s\n", line);
 150                 } else {
 151                     if (strcmp(variable, "mpg123") == 0) {
 152                         stripspace(value);
 153                         set_mpg123(value);
 154                     } else if (strcmp(variable, "mp3dir") == 0) {
 155                         stripspace(value);
 156                         add_mp3dir(value);
 157                     } else if (strcmp(variable, "mp3dirname") == 0) {
 158                         stripspace(value);
 159                         add_mp3dirname(value);
 160                     } else if (strcmp(variable, "mp3ext") == 0) {
 161                         stripspace(value);
 162                         set_mp3ext(value);
 163                     } else if (strcmp(variable, "playlistext") == 0) {
 164                         stripspace(value);
 165                         set_playlistext(value);
 166                     } else if (strcmp(variable, "alwaysscroll") == 0) {
 167                         stripspace(value);
 168                         set_alwaysscroll(value);
 169                     } else {
 170                         fprintf(stderr, "Unrecognized variable in config file: %s\n",
 171                                 variable);
 172                     }
 173                 }
 174             }
 175             fgets(line, 256, fp);
 176         }
 177
 178
 179         fclose(fp);
 180     } else {
 181         fprintf(stderr, "open of %s failed: %s\n",
 182                 config_filename,
 183                 strerror(errno));
 184     }
 185
 186     free(config_filename);
 187 }
 188
 189 void show_help()
 190 {
 191     printf("wmmp3 -- by Patrick Crosby -- Version %s\n", VERSION);
 192     printf("At this moment, there are no command line options that do\n");
 193     printf("anything special:\n");
 194     printf("\t-h,--help:  print this message\n");
 195     printf("\t-v,--version:  print version info\n");
 196     printf("All options are set in ~/.wmmp3.  See sample.wmmp3 in the\n");
 197     printf("distribution or http://dotfiles.com/software/ for more info.\n");
 198 }
 199
 200 void show_version()
 201 {
 202     printf("wmmp3 -- by Patrick Crosby -- Version %s\n", VERSION);
 203 }
 204
 205 int check_options(int argc, char *argv[])
 206 {
 207     int option_entered = 0;
 208     int i;
 209
 210
 211     for (i = 1; i < argc; i++) {
 212         if (streq(argv[i], "-h")) {
 213             option_entered = 1;
 214             show_help();
 215         }
 216         else if (streq(argv[i], "--help")) {
 217             option_entered = 1;
 218             show_help();
 219         }
 220         else if (streq(argv[i], "-v")) {
 221             option_entered = 1;
 222             show_version();
 223         }
 224         else if (streq(argv[i], "--version")) {
 225             option_entered = 1;
 226             show_version();
 227         }
 228     }
 229
 230     return option_entered;
 231 }
 232
 233 void main(int argc, char *argv[])
 234 {
 235     struct coord pos[] = {
 236         {35, 34, 12, 11},       /* stop */
 237         {46, 34, 12, 11},       /* play */
 238         {35, 45, 12, 11},       /* back */
 239         {46, 45, 12, 11},       /* next */
 240         {6, 34, 12, 11},        /* prev_dir */
 241         {17, 34, 12, 11},       /* random */
 242         {6, 45, 12, 11},        /* next_dir */
 243         {17, 45, 12, 11},       /* repeat */
 244         {5, 18, 54, 12}         /* song title */
 245     };
 246
 247     char mask_bits[64 * 64];
 248     int mask_width = 64;
 249     int mask_height = 64;
 250     XEvent Event;
 251     int i;
 252     int btn_num;
 253
 254     if (check_options(argc, argv)) {
 255         exit(1);
 256     }
 257
 258     loadconfig();
 259
 260     /* set up the display area for wmmp3 */
 261     createXBMfromXPM(mask_bits, wmmp3_xpm, mask_width, mask_height);
 262     openXwindow(argc, argv, wmmp3_xpm, mask_bits, mask_width, mask_height);
 263
 264     font_init();
 265     draw_string("wmmp3", 5, 5);
 266
 267
 268     i = 0;
 269     for (i = 0; i < 9; i++)
 270         AddMouseRegion(i, pos[i].x, pos[i].y,
 271                        pos[i].x + pos[i].w,
 272                        pos[i].y + pos[i].h);
 273
 274     /* event loop */
 275     while (1) {
 276         while (XPending(display)) {
 277             XNextEvent(display, &Event);
 278             switch (Event.type) {
 279             case Expose:
 280                 RedrawWindow();
 281                 break;
 282             case ClientMessage:
 283                 break;
 284             case DestroyNotify:
 285                 XCloseDisplay(display);
 286                 exit(0);
 287             case ButtonPress:
 288                 btn_num = handle_button_press(Event.xbutton.x,
 289                                               Event.xbutton.y);
 290                 break;
 291             case ButtonRelease:
 292                 handle_button_release(btn_num);
 293                 break;
 294             }
 295
 296         }
 297         usleep(50000);
 298     }
 299     exit(0);
 300 }
 301