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 <ctype.h>
  15 #include "main.h"
  16
  17 #define B_STOP 0
  18 #define B_PLAY 1
  19 #define B_BACK 2
  20 #define B_NEXT 3
  21 #define B_PREV_DIR 4
  22 #define B_RAND 5
  23 #define B_NEXT_DIR 6
  24 #define B_REPEAT 7
  25 #define B_TITLE 8
  26
  27 void loadconfig();
  28 void show_help();
  29 void show_version();
  30 int check_options(int argc, char *argv[]);
  31 int handle_button_press(int x, int y);
  32 void handle_button_release(int i);
  33
  34 struct coord {
  35     int x;
  36     int y;
  37     int w;
  38     int h;
  39 };
  40
  41 /* from Steven Jorgensen */
  42 void stripspace(char *s) {
  43     char *t;
  44     t = s + strlen(s) - 1;
  45     while (t > s && isspace(*t)) {
  46         t--;
  47     }
  48     t++;
  49     *t = '\0';
  50 }
  51
  52 int handle_button_press(int x, int y) {
  53     int i;
  54
  55     i = CheckMouseRegion(x, y);
  56     switch (i) {
  57     case B_STOP:
  58         button_down(i);
  59         button_up(B_PLAY);      /* raise play */
  60         button_up(B_PREV_DIR);  /* reactivate directory up/down */
  61         button_up(B_NEXT_DIR);
  62         stop();
  63         break;
  64     case B_PLAY:
  65         button_down(i);
  66         button_gray(B_PREV_DIR);        /* gray out directory up/down */
  67         button_gray(B_NEXT_DIR);
  68         user_play();
  69         break;
  70     case B_BACK:
  71         button_down(i);
  72         back();
  73         break;
  74     case B_NEXT:
  75         button_down(i);
  76         next();
  77         break;
  78     case B_PREV_DIR:
  79         dir_up(i);
  80         break;
  81     case B_RAND:
  82         random_toggle(i);
  83         break;
  84     case B_NEXT_DIR:
  85         dir_down(i);
  86         break;
  87     case B_REPEAT:
  88         repeat_toggle(i);
  89         break;
  90     case B_TITLE:
  91         turn_on_scroll();
  92         break;
  93     default:
  94         fprintf(stderr, "unknown button pressed\n");
  95     }
  96     RedrawWindow();
  97
  98     return(i);
  99 }
 100
 101 void handle_button_release(int i)
 102 {
 103     /* play stays down, don't mess with toggles */
 104     /* ignore song title press too */
 105     if (((i != B_PLAY) && (i != B_RAND)) &&
 106         ((i != B_REPEAT) && (i != B_TITLE))) {
 107         if (!is_playing()) {
 108             button_up(i);
 109             RedrawWindow();
 110         } else {
 111             /* don't undo gray of dir up/down */
 112             if (((i == B_STOP) || (i == B_BACK)) || (i == B_NEXT)) {
 113                 button_up(i);
 114                 RedrawWindow();
 115             }
 116         }
 117     }
 118 }
 119
 120 void loadconfig()
 121 {
 122     struct passwd *pw;
 123     char *config_filename;
 124     FILE *fp;
 125
 126     errno = 0;
 127
 128     /* set defualts in case anything fails */
 129     set_mpg123("/usr/local/bin/mpg123");
 130     set_mp3ext(".mp3");
 131     set_playlistext(".m3u");
 132
 133     pw = getpwuid(getuid());
 134     /* don't forget about the string terminator... */
 135     config_filename = (char *) malloc(sizeof(char) *
 136                                       (strlen(pw->pw_dir) + 8));
 137     sprintf(config_filename, "%s/.wmmp3", pw->pw_dir);
 138
 139
 140     fp = fopen(config_filename, "r");
 141     if (fp != NULL) {
 142         char line[256];
 143         char variable[256];
 144         char value[256];
 145
 146         fgets(line, 256, fp);
 147         while (!feof(fp)) {
 148             if ((line[0] != '#') && (line[0] != '\n')) {
 149                 if (sscanf(line, " %s = %[^\n]", variable, value) < 2) {
 150                     fprintf(stderr, "Malformed line in config file: %s\n", line);
 151                 } else {
 152                     if (strcmp(variable, "mpg123") == 0) {
 153                         stripspace(value);
 154                         set_mpg123(value);
 155                     } else if (strcmp(variable, "mp3dir") == 0) {
 156                         stripspace(value);
 157                         add_mp3dir(value);
 158                     } else if (strcmp(variable, "mp3dirname") == 0) {
 159                         stripspace(value);
 160                         add_mp3dirname(value);
 161                     } else if (strcmp(variable, "mp3ext") == 0) {
 162                         stripspace(value);
 163                         set_mp3ext(value);
 164                     } else if (strcmp(variable, "playlistext") == 0) {
 165                         stripspace(value);
 166                         set_playlistext(value);
 167                     } else if (strcmp(variable, "alwaysscroll") == 0) {
 168                         stripspace(value);
 169                         set_alwaysscroll(value);
 170                     } else {
 171                         fprintf(stderr, "Unrecognized variable in config file: %s\n",
 172                                 variable);
 173                     }
 174                 }
 175             }
 176             fgets(line, 256, fp);
 177         }
 178
 179
 180         fclose(fp);
 181     } else {
 182         fprintf(stderr, "open of %s failed: %s\n",
 183                 config_filename,
 184                 strerror(errno));
 185     }
 186
 187     free(config_filename);
 188 }
 189
 190 void show_help()
 191 {
 192     printf("wmmp3 -- by Patrick Crosby -- Version %s\n", VERSION);
 193     printf("At this moment, there are no command line options that do\n");
 194     printf("anything special:\n");
 195     printf("\t-h,--help:  print this message\n");
 196     printf("\t-v,--version:  print version info\n");
 197     printf("All options are set in ~/.wmmp3.  See sample.wmmp3 in the\n");
 198     printf("distribution or http://dotfiles.com/software/ for more info.\n");
 199 }
 200
 201 void show_version()
 202 {
 203     printf("wmmp3 -- by Patrick Crosby -- Version %s\n", VERSION);
 204 }
 205
 206 int check_options(int argc, char *argv[])
 207 {
 208     int option_entered = 0;
 209     int i;
 210
 211
 212     for (i = 1; i < argc; i++) {
 213         if (streq(argv[i], "-h")) {
 214             option_entered = 1;
 215             show_help();
 216         }
 217         else if (streq(argv[i], "--help")) {
 218             option_entered = 1;
 219             show_help();
 220         }
 221         else if (streq(argv[i], "-v")) {
 222             option_entered = 1;
 223             show_version();
 224         }
 225         else if (streq(argv[i], "--version")) {
 226             option_entered = 1;
 227             show_version();
 228         }
 229     }
 230
 231     return option_entered;
 232 }
 233
 234 void main(int argc, char *argv[])
 235 {
 236     struct coord pos[] = {
 237         {35, 34, 12, 11},       /* stop */
 238         {46, 34, 12, 11},       /* play */
 239         {35, 45, 12, 11},       /* back */
 240         {46, 45, 12, 11},       /* next */
 241         {6, 34, 12, 11},        /* prev_dir */
 242         {17, 34, 12, 11},       /* random */
 243         {6, 45, 12, 11},        /* next_dir */
 244         {17, 45, 12, 11},       /* repeat */
 245         {5, 18, 54, 12}         /* song title */
 246     };
 247
 248     char mask_bits[64 * 64];
 249     int mask_width = 64;
 250     int mask_height = 64;
 251     XEvent Event;
 252     int i;
 253     int btn_num;
 254
 255     if (check_options(argc, argv)) {
 256         exit(1);
 257     }
 258
 259     loadconfig();
 260
 261     /* set up the display area for wmmp3 */
 262     createXBMfromXPM(mask_bits, wmmp3_xpm, mask_width, mask_height);
 263     openXwindow(argc, argv, wmmp3_xpm, mask_bits, mask_width, mask_height);
 264
 265     font_init();
 266     draw_string("wmmp3", 5, 5);
 267
 268
 269     i = 0;
 270     for (i = 0; i < 9; i++)
 271         AddMouseRegion(i, pos[i].x, pos[i].y,
 272                        pos[i].x + pos[i].w,
 273                        pos[i].y + pos[i].h);
 274
 275     /* event loop */
 276     while (1) {
 277         while (XPending(display)) {
 278             XNextEvent(display, &Event);
 279             switch (Event.type) {
 280             case Expose:
 281                 RedrawWindow();
 282                 break;
 283             case ClientMessage:
 284                 break;
 285             case DestroyNotify:
 286                 XCloseDisplay(display);
 287                 exit(0);
 288             case ButtonPress:
 289                 btn_num = handle_button_press(Event.xbutton.x,
 290                                               Event.xbutton.y);
 291                 break;
 292             case ButtonRelease:
 293                 handle_button_release(btn_num);
 294                 break;
 295             }
 296
 297         }
 298         usleep(50000);
 299     }
 300     exit(0);
 301 }
 302