apps/plugins/credits.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2002 by Robert Hak <rhak at ramapo.edu>
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21 #include "plugin.h"
  22 #include "lib/helper.h"
  23
  24
  25
  26 static const char* const credits[] = {
  27 #include "credits.raw" /* generated list of names from docs/CREDITS */
  28 };
  29
  30 #ifdef HAVE_LCD_CHARCELLS
  31
  32 static void roll_credits(void)
  33 {
  34     int numnames = sizeof(credits)/sizeof(char*);
  35     int curr_name = 0;
  36     int curr_len = rb->utf8length(credits[0]);
  37     int curr_index = 0;
  38     int curr_line = 0;
  39     int name, len, new_len, line, x;
  40
  41     while (1)
  42     {
  43         rb->lcd_clear_display();
  44
  45         name = curr_name;
  46         x = -curr_index;
  47         len = curr_len;
  48         line = curr_line;
  49
  50         while (x < 11)
  51         {
  52             int x2;
  53
  54             if (x < 0)
  55                 rb->lcd_puts(0, line,
  56                              credits[name] + rb->utf8seek(credits[name], -x));
  57             else
  58                 rb->lcd_puts(x, line, credits[name]);
  59
  60             if (++name >= numnames)
  61                 break;
  62
  63             line ^= 1;
  64
  65             x2 = x + len/2;
  66             if ((unsigned)x2 < 11)
  67                 rb->lcd_putc(x2, line, '*');
  68
  69             new_len = rb->utf8length(credits[name]);
  70             x += MAX(len/2 + 2, len - new_len/2 + 1);
  71             len = new_len;
  72         }
  73         rb->lcd_update();
  74
  75         /* abort on keypress */
  76         if(rb->action_userabort(HZ/8))
  77             return;
  78
  79         if (++curr_index >= curr_len)
  80         {
  81             if (++curr_name >= numnames)
  82                 break;
  83             new_len = rb->utf8length(credits[curr_name]);
  84             curr_index -= MAX(curr_len/2 + 2, curr_len - new_len/2 + 1);
  85             curr_len = new_len;
  86             curr_line ^= 1;
  87         }
  88     }
  89 }
  90
  91 #else
  92
  93 static bool stop_autoscroll(int action)
  94 {
  95     switch (action)
  96     {
  97         case ACTION_STD_CANCEL:
  98         case ACTION_STD_OK:
  99         case ACTION_STD_NEXT:
 100         case ACTION_STD_NEXTREPEAT:
 101         case ACTION_STD_PREV:
 102         case ACTION_STD_PREVREPEAT:
 103             return true;
 104         default:
 105             return false;
 106     }
 107     return false;
 108 }
 109
 110 static int update_rowpos(int action, int cur_pos, int rows_per_screen, int tot_rows)
 111 {
 112     switch(action)
 113     {
 114         case ACTION_STD_PREV:
 115         case ACTION_STD_PREVREPEAT:
 116             cur_pos--;
 117             break;
 118         case ACTION_STD_NEXT:
 119         case ACTION_STD_NEXTREPEAT:
 120             cur_pos++;
 121             break;
 122     }
 123
 124     if(cur_pos > tot_rows - rows_per_screen)
 125         cur_pos = 0;
 126     if(cur_pos < 0)
 127         cur_pos = tot_rows - rows_per_screen;
 128
 129     return cur_pos;
 130 }
 131
 132 static void roll_credits(void)
 133 {
 134     /* to do: use target defines iso keypads to set animation timings */
 135 #if (CONFIG_KEYPAD == RECORDER_PAD)
 136     #define PAUSE_TIME 1.2
 137     #define ANIM_SPEED 35
 138 #elif (CONFIG_KEYPAD == IPOD_4G_PAD) || (CONFIG_KEYPAD == IPOD_3G_PAD) || \
 139       (CONFIG_KEYPAD == IPOD_1G2G_PAD)
 140     #define PAUSE_TIME 0
 141     #define ANIM_SPEED 100
 142 #elif (CONFIG_KEYPAD == IRIVER_H100_PAD) || (CONFIG_KEYPAD == IRIVER_H300_PAD)
 143     #define PAUSE_TIME 0
 144     #define ANIM_SPEED 35
 145 #elif (CONFIG_KEYPAD == GIGABEAT_PAD)
 146     #define PAUSE_TIME 0
 147     #define ANIM_SPEED 100
 148 #else
 149     #define PAUSE_TIME 1
 150     #define ANIM_SPEED 40
 151 #endif
 152
 153     #define NUM_VISIBLE_LINES (LCD_HEIGHT/font_h - 1)
 154     #define CREDITS_TARGETPOS ((LCD_WIDTH/2)-(credits_w/2))
 155
 156     int i=0, j=0, namepos=0, offset_dummy;
 157     int name_w, name_h, name_targetpos=1, font_h;
 158     int credits_w, credits_pos;
 159     int numnames = (sizeof(credits)/sizeof(char*));
 160     char name[40], elapsednames[32];
 161     int action = ACTION_NONE;
 162
 163     /* control if scrolling is automatic (with animation) or manual */
 164     bool manual_scroll = false;
 165
 166     rb->lcd_setfont(FONT_UI);
 167     rb->lcd_clear_display();
 168     rb->lcd_update();
 169
 170     rb->lcd_getstringsize("A", NULL, &font_h);
 171
 172     /* snprintf "credits" text, and save the width and height */
 173     rb->snprintf(elapsednames, sizeof(elapsednames), "[Credits] %d/%d",
 174                  j+1, numnames);
 175     rb->lcd_getstringsize(elapsednames, &credits_w, NULL);
 176
 177     /* fly in "credits" text from the left */
 178     for(credits_pos = 0 - credits_w; credits_pos <= CREDITS_TARGETPOS;
 179         credits_pos += (CREDITS_TARGETPOS-credits_pos + 14) / 7)
 180     {
 181         rb->lcd_set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
 182         rb->lcd_fillrect(0, 0, LCD_WIDTH, font_h);
 183         rb->lcd_set_drawmode(DRMODE_SOLID);
 184         rb->lcd_putsxy(credits_pos, 0, elapsednames);
 185         rb->lcd_update_rect(0, 0, LCD_WIDTH, font_h);
 186         rb->sleep(HZ/ANIM_SPEED);
 187     }
 188
 189     /* first screen's worth of lines fly in */
 190     for(i=0; i<NUM_VISIBLE_LINES; i++)
 191     {
 192         rb->snprintf(name, sizeof(name), "%s", credits[i]);
 193         rb->lcd_getstringsize(name, &name_w, &name_h);
 194
 195         rb->snprintf(elapsednames, sizeof(elapsednames), "[Credits] %d/%d",
 196                      i+1, numnames);
 197         rb->lcd_getstringsize(elapsednames, &credits_w, NULL);
 198         rb->lcd_putsxy(CREDITS_TARGETPOS, 0, elapsednames);
 199         rb->lcd_update_rect(CREDITS_TARGETPOS, 0, credits_w, font_h);
 200
 201         for(namepos = 0-name_w; namepos <= name_targetpos;
 202             namepos += (name_targetpos - namepos + 14) / 7)
 203         {
 204             rb->lcd_set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
 205             /* clear any trails left behind */
 206             rb->lcd_fillrect(0, font_h*(i+1), LCD_WIDTH, font_h);
 207             rb->lcd_set_drawmode(DRMODE_SOLID);
 208             rb->lcd_putsxy(namepos, font_h*(i+1), name);
 209             rb->lcd_update_rect(0, font_h*(i+1), LCD_WIDTH, font_h);
 210
 211             /* exit on abort, switch to manual on up/down */
 212             action = rb->get_action(CONTEXT_LIST, HZ/ANIM_SPEED);
 213             if(stop_autoscroll(action))
 214                 break;
 215         }
 216         if(stop_autoscroll(action))
 217             break;
 218     }
 219
 220     /* process user actions (if any) */
 221     if(ACTION_STD_CANCEL == action)
 222         return;
 223     if(stop_autoscroll(action))
 224         manual_scroll = true; /* up/down - abort was catched above */
 225
 226     if(!manual_scroll)
 227     {
 228         j+= i;
 229
 230         /* pause for a bit if needed */
 231         action = rb->get_action(CONTEXT_LIST, HZ*PAUSE_TIME);
 232         if(ACTION_STD_CANCEL == action)
 233             return;
 234         if(stop_autoscroll(action))
 235             manual_scroll = true;
 236     }
 237
 238     if(!manual_scroll)
 239     {
 240         while(j < numnames)
 241         {
 242             /* just a screen's worth at a time */
 243             for(i=0; i<NUM_VISIBLE_LINES; i++)
 244             {
 245                 if(j+i >= numnames)
 246                     break;
 247                 offset_dummy=1;
 248
 249                 rb->snprintf(name, sizeof(name), "%s",
 250                              credits[j+i-NUM_VISIBLE_LINES]);
 251                 rb->lcd_getstringsize(name, &name_w, &name_h);
 252
 253                 /* fly out an existing line.. */
 254                 while(namepos<LCD_WIDTH+offset_dummy)
 255                 {
 256                     rb->lcd_set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
 257                     /* clear trails */
 258                     rb->lcd_fillrect(0, font_h*(i+1), LCD_WIDTH, font_h);
 259                     rb->lcd_set_drawmode(DRMODE_SOLID);
 260                     rb->lcd_putsxy(namepos, font_h*(i+1), name);
 261                     rb->lcd_update_rect(0, font_h*(i+1), LCD_WIDTH, font_h);
 262
 263                     /* exit on keypress, react to scrolling */
 264                     action = rb->get_action(CONTEXT_LIST, HZ/ANIM_SPEED);
 265                     if(stop_autoscroll(action))
 266                         break;
 267
 268                     namepos += offset_dummy;
 269                     offset_dummy++;
 270                 } /* while(namepos<LCD_WIDTH+offset_dummy) */
 271                 if(stop_autoscroll(action))
 272                     break;
 273
 274                 rb->snprintf(name, sizeof(name), "%s", credits[j+i]);
 275                 rb->lcd_getstringsize(name, &name_w, &name_h);
 276
 277                 rb->snprintf(elapsednames, sizeof(elapsednames),
 278                              "[Credits] %d/%d", j+i+1, numnames);
 279                 rb->lcd_getstringsize(elapsednames, &credits_w, NULL);
 280                 rb->lcd_putsxy(CREDITS_TARGETPOS, 0, elapsednames);
 281                 if (j+i < NUM_VISIBLE_LINES) /* takes care of trail on loop */
 282                     rb->lcd_update_rect(0, 0, LCD_WIDTH, font_h);
 283
 284                 for(namepos = 0-name_w; namepos <= name_targetpos;
 285                     namepos += (name_targetpos - namepos + 14) / 7)
 286                 {
 287                     rb->lcd_set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
 288                     rb->lcd_fillrect(0, font_h*(i+1), LCD_WIDTH, font_h);
 289                     rb->lcd_set_drawmode(DRMODE_SOLID);
 290                     rb->lcd_putsxy(namepos, font_h*(i+1), name);
 291                     rb->lcd_update_rect(0, font_h*(i+1), LCD_WIDTH, font_h);
 292                     rb->lcd_update_rect(CREDITS_TARGETPOS, 0, credits_w,font_h);
 293
 294                     /* stop on keypress */
 295                     action = rb->get_action(CONTEXT_LIST, HZ/ANIM_SPEED);
 296                     if(stop_autoscroll(action))
 297                         break;
 298                 }
 299                 if(stop_autoscroll(action))
 300                     break;
 301                 namepos = name_targetpos;
 302             } /* for(i=0; i<NUM_VISIBLE_LINES; i++) */
 303             if(stop_autoscroll(action))
 304                 break;
 305
 306             action = rb->get_action(CONTEXT_LIST, HZ*PAUSE_TIME);
 307             if(stop_autoscroll(action))
 308                 break;
 309
 310             j+=i; /* no user intervention, draw the next screen-full */
 311         } /* while(j < numnames) */
 312
 313         /* handle the keypress that we intercepted during autoscroll */
 314         if(ACTION_STD_CANCEL == action)
 315             return;
 316         if(stop_autoscroll(action))
 317             manual_scroll = true;
 318     } /* if(!manual_scroll) */
 319
 320     if(manual_scroll)
 321     {
 322         /* user went into manual scrolling, handle it here */
 323         rb->lcd_set_drawmode(DRMODE_SOLID);
 324         while(ACTION_STD_CANCEL != action)
 325         {
 326             rb->lcd_clear_display();
 327             rb->snprintf(elapsednames, sizeof(elapsednames),
 328                          "[Credits] %d-%d/%d", j+1,
 329                          j+NUM_VISIBLE_LINES, numnames);
 330             rb->lcd_getstringsize(elapsednames, &credits_w, NULL);
 331             rb->lcd_putsxy(CREDITS_TARGETPOS, 0, elapsednames);
 332
 333             for(i=0; i<NUM_VISIBLE_LINES; i++)
 334                 rb->lcd_putsxyf(0, font_h*(i+1), "%s", credits[j+i]);
 335
 336             rb->lcd_update();
 337
 338             rb->yield();
 339
 340             /* wait for user action */
 341             action = rb->get_action(CONTEXT_LIST, TIMEOUT_BLOCK);
 342             if(ACTION_STD_CANCEL == action)
 343                 return;
 344             j = update_rowpos(action, j, NUM_VISIBLE_LINES, numnames);
 345         }
 346         return; /* exit without animation */
 347     }
 348
 349     action = rb->get_action(CONTEXT_LIST, HZ*3);
 350     if(ACTION_STD_CANCEL == action)
 351         return;
 352
 353     offset_dummy = 1;
 354
 355     /* now make the text exit to the right */
 356     for(credits_pos = (LCD_WIDTH/2)-(credits_w/2);
 357         credits_pos <= LCD_WIDTH+offset_dummy;
 358         credits_pos += offset_dummy, offset_dummy++)
 359     {
 360         rb->lcd_set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
 361         rb->lcd_fillrect(0, 0, LCD_WIDTH, font_h);
 362         rb->lcd_set_drawmode(DRMODE_SOLID);
 363         rb->lcd_putsxy(credits_pos, 0, elapsednames);
 364         rb->lcd_update();
 365     }
 366 }
 367
 368 #endif
 369
 370 enum plugin_status plugin_start(const void* parameter)
 371 {
 372     (void)parameter;
 373
 374     /* Turn off backlight timeout */
 375     backlight_force_on(); /* backlight control in lib/helper.c */
 376
 377     rb->show_logo();
 378 #ifdef HAVE_LCD_CHARCELLS
 379     rb->lcd_double_height(false);
 380 #endif
 381
 382     /* Show the logo for about 3 secs allowing the user to stop */
 383     if(!rb->action_userabort(3*HZ))
 384         roll_credits();
 385
 386     /* Turn on backlight timeout (revert to settings) */
 387     backlight_use_settings(); /* backlight control in lib/helper.c */
 388
 389     return PLUGIN_OK;
 390 }