summaryrefslogtreecommitdiffstats
path: root/apps/tree.c
blob: b1da2bd280f61bd6a21fd2084577bf562c03e401 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
/***************************************************************************
 *             __________               __   ___.
 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
 *                     \/            \/     \/    \/            \/
 * $Id$
 *
 * Copyright (C) 2002 Daniel Stenberg
 *
 * All files in this archive are subject to the GNU General Public License.
 * See the file COPYING in the source tree root for full license agreement.
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
 ****************************************************************************/

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <stdbool.h>

#include "applimits.h"
#include "dir.h"
#include "file.h"
#include "lcd.h"
#include "button.h"
#include "kernel.h"
#include "usb.h"
#include "tree.h"
#include "main_menu.h"
#include "sprintf.h"
#include "mpeg.h"
#include "playlist.h"
#include "menu.h"
#include "wps.h"
#include "settings.h"
#include "status.h"
#include "debug.h"

#ifdef HAVE_LCD_BITMAP
#include "icons.h"
#endif

#ifdef LOADABLE_FONTS
#include "ajf.h"
#endif

#define NAME_BUFFER_SIZE (AVERAGE_FILENAME_LENGTH * MAX_FILES_IN_DIR)

char name_buffer[NAME_BUFFER_SIZE];
int name_buffer_length;
struct entry {
    short attr; /* FAT attributes */
    char *name;
};

static struct entry dircache[MAX_FILES_IN_DIR];
static int filesindir;
static char lastdir[MAX_PATH] = {0};

void browse_root(void)
{
    dirbrowse("/");
}


#ifdef HAVE_LCD_BITMAP

#define TREE_MAX_ON_SCREEN   ((LCD_HEIGHT-MARGIN_Y)/LINE_HEIGTH)
#define TREE_MAX_LEN_DISPLAY 16 /* max length that fits on screen */
 
#define MARGIN_Y      (global_settings.statusbar ? STATUSBAR_HEIGHT : 0)  /* Y pixel margin */
#define MARGIN_X      10 /* X pixel margin */
#define LINE_Y      (global_settings.statusbar ? 1 : 0) /* Y position the entry-list starts at */
#define LINE_X      0 /* X position the entry-list starts at */
#define LINE_HEIGTH 8 /* pixels for each text line */

#define CURSOR_Y    0 /* the cursor is not positioned in regard to
                         the margins, so this is the amount of lines
                         we add to the cursor Y position to position
                         it on a line */

extern unsigned char bitmap_icons_6x8[LastIcon][6];

#else /* HAVE_LCD_BITMAP */

#define TREE_MAX_ON_SCREEN   2
#define TREE_MAX_LEN_DISPLAY 11 /* max length that fits on screen */
#define LINE_Y      0 /* Y position the entry-list starts at */
#define LINE_X      1 /* X position the entry-list starts at */

#define CURSOR_Y    0 /* not really used for players */

#endif /* HAVE_LCD_BITMAP */

#ifdef HAVE_RECORDER_KEYPAD
#define TREE_NEXT  BUTTON_DOWN
#define TREE_PREV  BUTTON_UP
#define TREE_EXIT  BUTTON_LEFT
#define TREE_ENTER BUTTON_RIGHT
#define TREE_MENU  BUTTON_F1
#define RELEASE_MASK (BUTTON_OFF)
#else
#define TREE_NEXT  BUTTON_RIGHT
#define TREE_PREV  BUTTON_LEFT
#define TREE_EXIT  BUTTON_STOP
#define TREE_ENTER BUTTON_PLAY
#define TREE_MENU  BUTTON_MENU
#define RELEASE_MASK (BUTTON_STOP)
#endif /* HAVE_RECORDER_KEYPAD */

#define TREE_ATTR_M3U 0x80 /* unused by FAT attributes */
#define TREE_ATTR_MP3 0x40 /* unused by FAT attributes */

static int build_playlist(int start_index)
{
    int i;
    int start=start_index;

    playlist_clear();

    for(i = 0;i < filesindir;i++)
    {
        if(dircache[i].attr & TREE_ATTR_MP3)
        {
            DEBUGF("Adding %s\n", dircache[i].name);
            playlist_add(dircache[i].name);
        }
        else
        {
            /* Adjust the start index when se skip non-MP3 entries */
            if(i < start)
                start_index--;
        }
    }

    return start_index;
}

static int compare(const void* p1, const void* p2)
{
    struct entry* e1 = (struct entry*)p1;
    struct entry* e2 = (struct entry*)p2;
    
    if (( e1->attr & ATTR_DIRECTORY ) == ( e2->attr & ATTR_DIRECTORY ))
        if (global_settings.sort_case)
            return strncmp(e1->name, e2->name, MAX_PATH);
        else
            return strncasecmp(e1->name, e2->name, MAX_PATH);
    else 
        return ( e2->attr & ATTR_DIRECTORY ) - ( e1->attr & ATTR_DIRECTORY );
}

static int showdir(char *path, int start)
{
#ifdef HAVE_LCD_BITMAP
    int icon_type = 0;
    int line_height = LINE_HEIGTH;
#endif
    int i;
    int tree_max_on_screen;
    bool dir_buffer_full;
#ifdef LOADABLE_FONTS
    int fh;
    unsigned char *font = lcd_getcurrentldfont();
    fh  = ajf_get_fontheight(font);
    tree_max_on_screen = (LCD_HEIGHT - MARGIN_Y) / fh;
    line_height = fh;
#else
    tree_max_on_screen = TREE_MAX_ON_SCREEN;
#endif


    /* new dir? cache it */
    if (strncmp(path,lastdir,sizeof(lastdir))) {
        DIR *dir = opendir(path);
        if(!dir)
            return -1; /* not a directory */

        name_buffer_length = 0;
        dir_buffer_full = false;
        
        for ( i=0; i<MAX_FILES_IN_DIR; i++ ) {
            int len;
            struct dirent *entry = readdir(dir);
            struct entry* dptr = &dircache[i];
            if (!entry)
                break;

            /* skip directories . and .. */
            if ((entry->attribute & ATTR_DIRECTORY) &&
                (!strncmp(entry->d_name, ".", 1) ||
                 !strncmp(entry->d_name, "..", 2))) {
                i--;
                continue;
            }
            dptr->attr = entry->attribute;
            len = strlen(entry->d_name);

            /* mark mp3 and m3u files as such */
            if ( !(dptr->attr & ATTR_DIRECTORY) && (len > 4) ) {
                if (!strcasecmp(&entry->d_name[len-4], ".mp3"))
                    dptr->attr |= TREE_ATTR_MP3;
                else
                    if (!strcasecmp(&entry->d_name[len-4], ".m3u"))
                        dptr->attr |= TREE_ATTR_M3U;
            }

            /* filter hidden files and directories and non-mp3 or m3u files */
            if ( global_settings.mp3filter &&
                 ((dptr->attr & ATTR_HIDDEN) ||
                  !(dptr->attr & (ATTR_DIRECTORY|TREE_ATTR_MP3|TREE_ATTR_M3U))) ) {
                i--;
                continue;
            }

            if(len > NAME_BUFFER_SIZE - name_buffer_length - 1) {
                /* Tell the world that we ran out of buffer space */
                dir_buffer_full = true;
                break;
            }
            dptr->name = &name_buffer[name_buffer_length];
            strcpy(dptr->name,entry->d_name);
            name_buffer_length += len + 1;
        }
        filesindir = i;
        closedir(dir);
        strncpy(lastdir,path,sizeof(lastdir));
        lastdir[sizeof(lastdir)-1] = 0;
        qsort(dircache,filesindir,sizeof(struct entry),compare);

        if ( dir_buffer_full || filesindir == MAX_FILES_IN_DIR ) {
#ifdef HAVE_NEW_CHARCELL_LCD
            lcd_double_height(false);
#endif
            lcd_clear_display();
            lcd_puts(0,0,"Dir buffer");
            lcd_puts(0,1,"is full!");
            lcd_update();
            sleep(HZ*2);
            lcd_clear_display();
        }
    }

    lcd_stop_scroll();
#ifdef HAVE_NEW_CHARCELL_LCD
    lcd_double_height(false);
#endif
    lcd_clear_display();
#ifdef HAVE_LCD_BITMAP
    lcd_setmargins(MARGIN_X,MARGIN_Y); /* leave room for cursor and icon */
    lcd_setfont(0);
#endif

    for ( i=start; i < start+tree_max_on_screen; i++ ) {
        int len;

        if ( i >= filesindir )
            break;

        len = strlen(dircache[i].name);

#ifdef HAVE_LCD_BITMAP
        if ( dircache[i].attr & ATTR_DIRECTORY )
            icon_type = Folder;
        else {
            if ( dircache[i].attr & TREE_ATTR_M3U )
                icon_type = Playlist;
            else
                icon_type = File;
        }
        lcd_bitmap(bitmap_icons_6x8[icon_type], 
                   4, MARGIN_Y+(i-start)*line_height, 6, 8, true);
#endif


        /* if MP3 filter is on, cut off the extension */
        if (global_settings.mp3filter && 
            (dircache[i].attr & (TREE_ATTR_M3U|TREE_ATTR_MP3)))
        {
            char temp = dircache[i].name[len-4];
            dircache[i].name[len-4] = 0;
            lcd_puts(LINE_X, i-start, dircache[i].name);
            dircache[i].name[len-4] = temp;
        }
        else
            lcd_puts(LINE_X, i-start, dircache[i].name);
    }

    status_draw();
    return filesindir;
}

bool ask_resume(void)
{
#ifdef HAVE_NEW_CHARCELL_LCD
    lcd_double_height(false);
#endif

    /* always resume? */
    if ( global_settings.resume == RESUME_ON )
        return true;

    lcd_clear_display();
    lcd_puts(0,0,"Resume?");
#ifdef HAVE_LCD_CHARCELLS
    lcd_puts(0,1,"(Play/Stop)");
#else
    lcd_puts(0,1,"Play = Yes");
    lcd_puts(0,2,"Any other = No");
#endif
    lcd_update();
    if (button_get(true) == BUTTON_PLAY)
        return true;
    return false;
}

void start_resume(void)
{
    if ( global_settings.resume &&
         global_settings.resume_index != -1 ) {
        int len = strlen(global_settings.resume_file);

        DEBUGF("Resume file %s\n",global_settings.resume_file);
        DEBUGF("Resume index %X offset %X\n",
               global_settings.resume_index,
               global_settings.resume_offset);
        DEBUGF("Resume shuffle %s seed %X\n",
               global_settings.playlist_shuffle?"on":"off",
               global_settings.resume_seed);

        /* playlist? */
        if (!strcasecmp(&global_settings.resume_file[len-4], ".m3u")) {
            char* slash;

            /* check that the file exists */
            int fd = open(global_settings.resume_file, O_RDONLY);
            if(fd<0)
                return;
            close(fd);

            if (!ask_resume())
                return;
            
            slash = strrchr(global_settings.resume_file,'/');
            if (slash) {
                *slash=0;
                play_list(global_settings.resume_file,
                          slash+1,
                          global_settings.resume_index,
                          global_settings.resume_offset,
                          global_settings.resume_seed );
                *slash='/';
            }
            else {
                /* check that the dir exists */
                DIR* dir = opendir(global_settings.resume_file);
                if(!dir)
                    return;
                closedir(dir);

                if (!ask_resume())
                    return;

                play_list("/",
                          global_settings.resume_file,
                          global_settings.resume_index,
                          global_settings.resume_offset,
                          global_settings.resume_seed );
            }
        }
        else {
            if (!ask_resume())
                return;

            if (showdir(global_settings.resume_file, 0) < 0 )
                return;
            build_playlist(global_settings.resume_index);
            play_list(global_settings.resume_file,
                      NULL, 
                      global_settings.resume_index, 
                      global_settings.resume_offset,
                      global_settings.resume_seed);
        }

        status_set_playmode(STATUS_PLAY);
        status_draw();
        wps_show();
    }
}

bool dirbrowse(char *root)
{
    int numentries=0;
    int dircursor=0;
    int start=0;
    int dirpos[MAX_DIR_LEVELS];
    int cursorpos[MAX_DIR_LEVELS];
    int dirlevel=0;
    char currdir[MAX_PATH];
    char buf[MAX_PATH];
    int i;
    int lasti=-1;
    int rc;
    int button;
    int start_index;
    int tree_max_on_screen;
#ifdef LOADABLE_FONTS
    int fh;
    unsigned char *font = lcd_getcurrentldfont();
    fh  = ajf_get_fontheight(font);
    tree_max_on_screen = (LCD_HEIGHT - MARGIN_Y) / fh;
#else
    tree_max_on_screen = TREE_MAX_ON_SCREEN;
#endif

    start_resume();
    button_set_release(RELEASE_MASK);

    memcpy(currdir,root,sizeof(currdir));
    numentries = showdir(root, start);
    if (numentries == -1) 
        return -1;  /* root is not a directory */

    put_cursorxy(0, CURSOR_Y + dircursor, true);

    while(1) {
        bool restore = false;

        button = button_get_w_tmo(HZ/5);
        switch ( button ) {
            case TREE_EXIT:
                i=strlen(currdir);
                if (i>1) {
                    while (currdir[i-1]!='/')
                        i--;
                    strcpy(buf,&currdir[i]);
                    if (i==1)
                        currdir[i]=0;
                    else
                        currdir[i-1]=0;

                    dirlevel--;
                    if ( dirlevel < MAX_DIR_LEVELS ) {
                        start = dirpos[dirlevel];
                        dircursor = cursorpos[dirlevel];
                    }
                    else
                        start = dircursor = 0;
                    restore = true;
                }
                break;

#ifdef HAVE_RECORDER_KEYPAD
            case BUTTON_OFF:
                mpeg_stop();
                status_set_playmode(STATUS_STOP);
                status_draw();
                restore = true;
                break;

            case BUTTON_OFF | BUTTON_REL:
#else
            case BUTTON_STOP | BUTTON_REL:
#endif
                global_settings.resume_index = -1;
                settings_save();
                break;
                

            case TREE_ENTER:
#ifdef HAVE_RECORDER_KEYPAD
            case BUTTON_PLAY:
#endif
                if ( !numentries )
                    break;
                if ((currdir[0]=='/') && (currdir[1]==0)) {
                    snprintf(buf,sizeof(buf),"%s%s",currdir,
                             dircache[dircursor+start].name);
                } else {
                    snprintf(buf,sizeof(buf),"%s/%s",currdir,
                             dircache[dircursor+start].name);
                }

                if (dircache[dircursor+start].attr & ATTR_DIRECTORY) {
                    memcpy(currdir,buf,sizeof(currdir));
                    if ( dirlevel < MAX_DIR_LEVELS ) {
                        dirpos[dirlevel] = start;
                        cursorpos[dirlevel] = dircursor;
                    }
                    dirlevel++;
                    dircursor=0;
                    start=0;
                } else {
                    int seed = current_tick;
                    lcd_stop_scroll();
                    if(dircache[dircursor+start].attr & TREE_ATTR_M3U )
                    {
                        if ( global_settings.resume )
                            snprintf(global_settings.resume_file,
                                     MAX_PATH, "%s/%s",
                                     currdir,
                                     dircache[dircursor+start].name);
                        play_list(currdir,
                                  dircache[dircursor+start].name, 
                                  0, 0, seed );
                    }
                    else {
                        if ( global_settings.resume )
                            strncpy(global_settings.resume_file,
                                    currdir, MAX_PATH);
                        start_index = build_playlist(dircursor+start);
                        play_list(currdir, NULL, start_index, 0, seed);
                    }

                    if ( global_settings.resume ) {
                        global_settings.resume_index = 0;
                        global_settings.resume_offset = 0;
                        global_settings.resume_seed = seed;
                        settings_save();
                    }

                    status_set_playmode(STATUS_PLAY);
                    status_draw();
                    lcd_stop_scroll();
                    rc = wps_show();
                    if(rc == SYS_USB_CONNECTED)
                    {
                        /* Force a re-read of the root directory */
                        strcpy(currdir, "/");
                        lastdir[0] = 0;
                        dirlevel = 0;
                        dircursor = 0;
                        start = 0;
                        global_settings.resume_index = -1;
                    }
                }
                restore = true;
                break;

            case TREE_PREV:
            case TREE_PREV | BUTTON_REPEAT:
            case BUTTON_VOL_UP:
                if(filesindir) {
                    if(dircursor) {
                        put_cursorxy(0, CURSOR_Y + dircursor, false);
                        dircursor--;
                        put_cursorxy(0, CURSOR_Y + dircursor, true);
                    }
                    else {
                        if (start) {
                            start--;
                            numentries = showdir(currdir, start);
                            put_cursorxy(0, CURSOR_Y + dircursor, true);
                        }
                        else {
                            if (numentries < tree_max_on_screen) {
                                put_cursorxy(0, CURSOR_Y + dircursor,
                                             false);
                                dircursor = numentries - 1;
                                put_cursorxy(0, CURSOR_Y + dircursor,
                                             true);
                            }
                            else {
                                start = numentries - tree_max_on_screen;
                                dircursor = tree_max_on_screen - 1;
                                numentries = showdir(currdir, start);
                                put_cursorxy(0, CURSOR_Y +
                                             tree_max_on_screen - 1, true);
                            }
                        }
                    }
                    lcd_update();
                }
                break;

            case TREE_NEXT:
            case TREE_NEXT | BUTTON_REPEAT:
            case BUTTON_VOL_DOWN:
                if(filesindir)
                {
                    if (dircursor + start + 1 < numentries ) {
                        if(dircursor+1 < tree_max_on_screen) {
                            put_cursorxy(0, CURSOR_Y + dircursor,
                                         false);
                            dircursor++;
                            put_cursorxy(0, CURSOR_Y + dircursor, true);
                        } 
                        else {
                            start++;
                            numentries = showdir(currdir, start);
                            put_cursorxy(0, CURSOR_Y + dircursor, true);
                        }
                    }
                    else {
                        if(numentries < tree_max_on_screen) {
                            put_cursorxy(0, CURSOR_Y + dircursor,
                                         false);
                            start = dircursor = 0;
                            put_cursorxy(0, CURSOR_Y + dircursor, true);
                        } 
                        else {
                            start = dircursor = 0;
                            numentries = showdir(currdir, start);
                            put_cursorxy(0, CURSOR_Y + dircursor, true);
                        }
                    }
                    lcd_update();
                }
                break;

            case TREE_MENU: {
                bool lastfilter = global_settings.mp3filter;
                bool lastsortcase = global_settings.sort_case;
                lcd_stop_scroll();
                main_menu();
                /* do we need to rescan dir? */
                if ( lastfilter != global_settings.mp3filter ||
                     lastsortcase != global_settings.sort_case)
                    lastdir[0] = 0;
                restore = true;
                break;
            }

            case BUTTON_ON:
                if (mpeg_is_playing())
                {
                    lcd_stop_scroll();
                    rc = wps_show();
                    if(rc == SYS_USB_CONNECTED)
                    {
                        /* Force a re-read of the root directory */
                        strcpy(currdir, "/");
                        lastdir[0] = 0;
                        dirlevel = 0;
                        dircursor = 0;
                        start = 0;
                    }
                    restore = true;
                }
                break;

#ifdef HAVE_RECORDER_KEYPAD
            case BUTTON_F3:
#ifdef HAVE_LCD_BITMAP
                global_settings.statusbar = !global_settings.statusbar;
                settings_save();
#ifdef LOADABLE_FONTS
                tree_max_on_screen = (LCD_HEIGHT - MARGIN_Y) / fh;
#else
                tree_max_on_screen = TREE_MAX_ON_SCREEN;
#endif
                restore = true;
#endif
                break;
#endif

#ifndef SIMULATOR
            case SYS_USB_CONNECTED: {
#ifdef HAVE_LCD_BITMAP
                bool laststate=statusbar(false);
#endif
                /* Tell the USB thread that we are safe */
                DEBUGF("dirbrowse got SYS_USB_CONNECTED\n");
                usb_acknowledge(SYS_USB_CONNECTED_ACK);
                
                /* Wait until the USB cable is extracted again */
                usb_wait_for_disconnect(&button_queue);
                
                /* Force a re-read of the root directory */
                restore = true;
                strcpy(currdir, "/");
                lastdir[0] = 0;
                dirlevel = 0;
                dircursor = 0;
                start = 0;
#ifdef HAVE_LCD_BITMAP
                statusbar(laststate);
#endif
            }
            break;
#endif
        }

        if ( restore ) {
            /* restore display */
            /* We need to adjust if the number of lines on screen have
               changed because of a status bar change */
            if(CURSOR_Y+LINE_Y+dircursor>tree_max_on_screen) {
                start++;
                dircursor--;
            }
            numentries = showdir(currdir, start);
            put_cursorxy(0, CURSOR_Y + dircursor, true);
        }

        if ( numentries ) {
            i = start+dircursor;

            /* if MP3 filter is on, cut off the extension */
            if(lasti!=i || restore) {
                lasti=i;
                lcd_stop_scroll();
                if (global_settings.mp3filter && 
                    (dircache[i].attr &
                     (TREE_ATTR_M3U|TREE_ATTR_MP3)))
                {
                    int len = strlen(dircache[i].name);
                    char temp = dircache[i].name[len-4];
                    dircache[i].name[len-4] = 0;
                    lcd_puts_scroll(LINE_X, dircursor, 
                                    dircache[i].name);
                    dircache[i].name[len-4] = temp;
                }
                else
                    lcd_puts_scroll(LINE_X, dircursor,
                                    dircache[i].name);
            }
        }
        status_draw();
        lcd_update();

    }

    return false;
}