summaryrefslogtreecommitdiffstats
path: root/apps/gui/skin_engine/skin_display.c
blob: 4a3dcc21772ba56dbb3b3225420009ddb14d858f (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
/***************************************************************************
 *             __________               __   ___.
 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
 *                     \/            \/     \/    \/            \/
 * $Id$
 *
 * Copyright (C) 2002-2007 Björn Stenberg
 * Copyright (C) 2007-2008 Nicolas Pennequin
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
 ****************************************************************************/
#include "config.h"
#include <stdio.h>
#include "string-extra.h"
#include "core_alloc.h"
#include "misc.h"
#include "font.h"
#include "system.h"
#include "rbunicode.h"
#include "sound.h"
#include "powermgmt.h"
#ifdef DEBUG
#include "debug.h"
#endif
#include "action.h"
#include "abrepeat.h"
#include "lang.h"
#include "language.h"
#include "statusbar.h"
#include "settings.h"
#include "scrollbar.h"
#include "screen_access.h"
#include "line.h"
#include "playlist.h"
#include "audio.h"
#include "tagcache.h"
#include "list.h"
#include "option_select.h"

#include "peakmeter.h"
/* Image stuff */
#include "bmp.h"
#ifdef HAVE_ALBUMART
#include "albumart.h"
#endif

#include "cuesheet.h"
#include "playback.h"
#include "backdrop.h"
#include "viewport.h"
#if CONFIG_TUNER
#include "radio.h"
#include "tuner.h"
#endif
#include "root_menu.h"


#include "wps_internals.h"
#include "skin_engine.h"
#include "statusbar-skinned.h"
#include "skin_display.h"

void skin_render(struct gui_wps *gwps, unsigned refresh_mode);

/* update a skinned screen, update_type is WPS_REFRESH_* values.
 * Usually it should only be WPS_REFRESH_NON_STATIC
 * A full update will be done if required (skin_do_full_update() == true)
 */
void skin_update(enum skinnable_screens skin, enum screen_type screen,
                 unsigned int update_type)
{
    struct gui_wps *gwps = skin_get_gwps(skin, screen);
    /* This maybe shouldnt be here,
     * This is also safe for skined screen which dont use the id3 */
    struct mp3entry *id3 = skin_get_global_state()->id3;
    bool cuesheet_update = (id3 != NULL ? cuesheet_subtrack_changed(id3) : false);
    if (cuesheet_update)
        skin_request_full_update(skin);

    skin_render(gwps, skin_do_full_update(skin, screen) ?
                        SKIN_REFRESH_ALL : update_type);
}

#ifdef AB_REPEAT_ENABLE

#define DIRECTION_RIGHT 1
#define DIRECTION_LEFT -1

static int ab_calc_mark_x_pos(int mark, int capacity,
        int offset, int size)
{
    return offset + ( (size * mark) / capacity );
}

static void ab_draw_vertical_line_mark(struct screen * screen,
                                              int x, int y, int h)
{
    screen->set_drawmode(DRMODE_COMPLEMENT);
    screen->vline(x, y, y+h-1);
}

static void ab_draw_arrow_mark(struct screen * screen,
                                      int x, int y, int h, int direction)
{
    /* draw lines in decreasing size until a height of zero is reached */
    screen->set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
    while( h > 0 )
    {
        screen->vline(x, y, y+h-1);
        h -= 2;
        y++;
        x += direction;
        screen->set_drawmode(DRMODE_COMPLEMENT);
    }
}

void ab_draw_markers(struct screen * screen, int capacity,
                     int x, int y, int w, int h)
{
    bool a_set, b_set;
    unsigned int a, b;
    int xa, xb;

    a_set = ab_get_A_marker(&a);
    b_set = ab_get_B_marker(&b);
    xa = ab_calc_mark_x_pos(a, capacity, x, w);
    xb = ab_calc_mark_x_pos(b, capacity, x, w);
    /* if both markers are set, determine if they're far enough apart
    to draw arrows */
    if ( a_set && b_set )
    {
        int arrow_width = (h+1) / 2;
        if ( (xb-xa) < (arrow_width*2) )
        {
            ab_draw_vertical_line_mark(screen, xa, y, h);
            ab_draw_vertical_line_mark(screen, xb, y, h);
            return;
        }
    }

    if (a_set)
        ab_draw_arrow_mark(screen, xa, y, h, DIRECTION_RIGHT);

    if (b_set)
        ab_draw_arrow_mark(screen, xb, y, h, DIRECTION_LEFT);
}

#endif

void draw_progressbar(struct gui_wps *gwps, int line, struct progressbar *pb)
{
    struct screen *display = gwps->display;
    struct viewport *vp = SKINOFFSETTOPTR(get_skin_buffer(gwps->data), pb->vp);
    struct wps_state *state = skin_get_global_state();
    struct mp3entry *id3 = state->id3;
    int x = pb->x, y = pb->y, width = pb->width, height = pb->height;
    unsigned long length, end;
    int flags = HORIZONTAL;

    if (height < 0)
        height = font_get(vp->font)->height;

    if (y < 0)
    {
        int line_height = font_get(vp->font)->height;
        /* center the pb in the line, but only if the line is higher than the pb */
        int center = (line_height-height)/2;
        /* if Y was not set calculate by font height,Y is -line_number-1 */
        y = line*line_height + (0 > center ? 0 : center);
    }

    if (pb->type == SKIN_TOKEN_VOLUMEBAR)
    {
        int minvol = sound_min(SOUND_VOLUME);
        int maxvol = sound_max(SOUND_VOLUME);
        length = maxvol-minvol;
        end = global_settings.volume-minvol;
    }
    else if (pb->type == SKIN_TOKEN_BATTERY_PERCENTBAR)
    {
        length = 100;
        end = battery_level();
    }
    else if (pb->type == SKIN_TOKEN_PEAKMETER_LEFTBAR ||
             pb->type == SKIN_TOKEN_PEAKMETER_RIGHTBAR)
    {
        int left, right, val;
        peak_meter_current_vals(&left, &right);
        val = pb->type == SKIN_TOKEN_PEAKMETER_LEFTBAR ? left : right;
        length = MAX_PEAK;
        end = peak_meter_scale_value(val, length);
    }
    else if (pb->type == SKIN_TOKEN_LIST_SCROLLBAR)
    {
        int val, min, max;
        skinlist_get_scrollbar(&val, &min, &max);
        end = val - min;
        length = max - min;
    }
    else if (pb->type == SKIN_TOKEN_SETTINGBAR)
    {
        int val, count;
        get_setting_info_for_bar(pb->setting_id, &count, &val);
        length = count - 1;
        end = val;
    }
#if CONFIG_TUNER
    else if (in_radio_screen() || (get_radio_status() != FMRADIO_OFF))
    {
#ifdef HAVE_RADIO_RSSI
        if (pb->type == SKIN_TOKEN_TUNER_RSSI_BAR)
        {
            int val = tuner_get(RADIO_RSSI);
            int min = tuner_get(RADIO_RSSI_MIN);
            int max = tuner_get(RADIO_RSSI_MAX);
            end = val - min;
            length = max - min;
        }
        else
#endif
        {
            int min = fm_region_data[global_settings.fm_region].freq_min;
            end = radio_current_frequency() - min;
            length = fm_region_data[global_settings.fm_region].freq_max - min;
        }
    }
#endif
    else if (id3 && id3->length)
    {
        length = id3->length;
        end = id3->elapsed + state->ff_rewind_count;
    }
    else
    {
        length = 1;
        end = 0;
    }

    if (!pb->horizontal)
    {
        /* we want to fill upwards which is technically inverted. */
        flags = INVERTFILL;
    }

    if (pb->invert_fill_direction)
    {
        flags ^= INVERTFILL;
    }

    if (pb->nofill)
    {
        flags |= INNER_NOFILL;
    }

    if (pb->noborder)
    {
        flags |= BORDER_NOFILL;
    }

    if (SKINOFFSETTOPTR(get_skin_buffer(gwps->data), pb->slider))
    {
        struct gui_img *img = SKINOFFSETTOPTR(get_skin_buffer(gwps->data), pb->slider);
        /* clear the slider */
        screen_clear_area(display, x, y, width, height);

        /* account for the sliders width in the progressbar */
        if (flags&HORIZONTAL)
        {
            width -= img->bm.width;
        }
        else
        {
            height -= img->bm.height;
        }
    }

    if (SKINOFFSETTOPTR(get_skin_buffer(gwps->data), pb->backdrop))
    {
        struct gui_img *img = SKINOFFSETTOPTR(get_skin_buffer(gwps->data), pb->backdrop);
        img->bm.data = core_get_data(img->buflib_handle);
        display->bmp_part(&img->bm, 0, 0, x, y, pb->width, height);
        flags |= DONT_CLEAR_EXCESS;
    }

    if (!pb->nobar)
    {
        struct gui_img *img = SKINOFFSETTOPTR(get_skin_buffer(gwps->data), pb->image);
        if (img)
        {
            char *img_data = core_get_data(img->buflib_handle);
            img->bm.data = img_data;
            gui_bitmap_scrollbar_draw(display, &img->bm,
                                    x, y, width, height,
                                    length, 0, end, flags);
        }
        else
            gui_scrollbar_draw(display, x, y, width, height,
                               length, 0, end, flags);
    }

    if (SKINOFFSETTOPTR(get_skin_buffer(gwps->data), pb->slider))
    {
        int xoff = 0, yoff = 0;
        int w = width, h = height;
        struct gui_img *img = SKINOFFSETTOPTR(get_skin_buffer(gwps->data), pb->slider);
        img->bm.data = core_get_data(img->buflib_handle);

        if (flags&HORIZONTAL)
        {
            w = img->bm.width;
            xoff = width * end / length;
            if (flags&INVERTFILL)
                xoff = width - xoff;
        }
        else
        {
            h = img->bm.height;
            yoff = height * end / length;
            if (flags&INVERTFILL)
                yoff = height - yoff;
        }
        display->bmp_part(&img->bm, 0, 0, x + xoff, y + yoff, w, h);
    }

    if (pb->type == SKIN_TOKEN_PROGRESSBAR)
    {
        if (id3 && id3->length)
        {
#ifdef AB_REPEAT_ENABLE
            if (ab_repeat_mode_enabled())
                ab_draw_markers(display, id3->length, x, y, width, height);
#endif

            if (id3->cuesheet)
                cue_draw_markers(display, id3->cuesheet, id3->length,
                                 x, y+1, width, height-2);
        }
#if 0 /* disable for now CONFIG_TUNER */
        else if (in_radio_screen() || (get_radio_status() != FMRADIO_OFF))
        {
            presets_draw_markers(display, x, y, width, height);
        }
#endif
    }
}

/* clears the area where the image was shown */
void clear_image_pos(struct gui_wps *gwps, struct gui_img *img)
{
    if(!gwps)
        return;
    gwps->display->set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
    gwps->display->fillrect(img->x, img->y, img->bm.width, img->subimage_height);
    gwps->display->set_drawmode(DRMODE_SOLID);
}

void wps_draw_image(struct gui_wps *gwps, struct gui_img *img,
                    int subimage, struct viewport* vp)
{
    struct screen *display = gwps->display;
    img->bm.data = core_get_data(img->buflib_handle);
    display->set_drawmode(DRMODE_SOLID);

    if (img->is_9_segment)
        display->nine_segment_bmp(&img->bm, 0, 0, vp->width, vp->height);
    else
        display->bmp_part(&img->bm, 0, img->subimage_height * subimage,
                          img->x, img->y, img->bm.width, img->subimage_height);
}

void wps_display_images(struct gui_wps *gwps, struct viewport* vp)
{
    if(!gwps || !gwps->data || !gwps->display)
        return;
    (void)vp;
    struct wps_data *data = gwps->data;
    struct screen *display = gwps->display;
    struct skin_token_list *list = SKINOFFSETTOPTR(get_skin_buffer(data), data->images);

    while (list)
    {
        struct wps_token *token = SKINOFFSETTOPTR(get_skin_buffer(data), list->token);
        struct gui_img *img = NULL;
        if (token)
            img = (struct gui_img*)SKINOFFSETTOPTR(get_skin_buffer(data), token->value.data);
        if (img) {
            if (img->using_preloaded_icons && img->display >= 0)
            {
                screen_put_icon(display, img->x, img->y, img->display);
            }
            else if (img->loaded)
            {
                if (img->display >= 0)
                {
                    wps_draw_image(gwps, img, img->display, vp);
                }
            }
        }
        list = SKINOFFSETTOPTR(get_skin_buffer(data), list->next);
    }
#ifdef HAVE_ALBUMART
    /* now draw the AA */
    struct skin_albumart *aa = SKINOFFSETTOPTR(get_skin_buffer(data), data->albumart);
    if (aa && SKINOFFSETTOPTR(get_skin_buffer(data), aa->vp) == vp
        && aa->draw_handle >= 0)
    {
        draw_album_art(gwps, aa->draw_handle, false);
        aa->draw_handle = -1;
    }
#endif

    display->set_drawmode(DRMODE_SOLID);
}

/* Evaluate the conditional that is at *token_index and return whether a skip
   has ocurred. *token_index is updated with the new position.
*/
int evaluate_conditional(struct gui_wps *gwps, int offset,
                         struct conditional *conditional, int num_options)
{
    if (!gwps)
        return false;

    char result[128];
    const char *value;

    int intval = num_options < 2 ? 2 : num_options;
    /* get_token_value needs to know the number of options in the enum */
    value = get_token_value(gwps, SKINOFFSETTOPTR(get_skin_buffer(gwps->data), conditional->token),
                    offset, result, sizeof(result), &intval);

    /* intval is now the number of the enum option we want to read,
       starting from 1. If intval is -1, we check if value is empty. */
    if (intval == -1)
    {
        if (num_options == 1) /* so %?AA<true> */
            intval = (value && *value) ? 1 : 0; /* returned as 0 for true, -1 for false */
        else
            intval = (value && *value) ? 1 : num_options;
    }
    else if (intval > num_options || intval < 1)
        intval = num_options;

    return intval -1;
}


/* Display a line appropriately according to its alignment format.
   format_align contains the text, separated between left, center and right.
   line is the index of the line on the screen.
   scroll indicates whether the line is a scrolling one or not.
*/
void write_line(struct screen *display, struct align_pos *format_align,
                int line, bool scroll, struct line_desc *linedes)
{
    int left_width = 0;
    int center_width = 0, center_xpos;
    int right_width = 0,  right_xpos;
    int space_width;
    int string_height;
    int scroll_width;
    int viewport_width = display->getwidth();

    /* calculate different string sizes and positions */
    display->getstringsize((unsigned char *)" ", &space_width, &string_height);
    if (format_align->left != 0) {
        display->getstringsize((unsigned char *)format_align->left,
                                &left_width, &string_height);
    }

    if (format_align->right != 0) {
        display->getstringsize((unsigned char *)format_align->right,
                                &right_width, &string_height);
    }

    if (format_align->center != 0) {
        display->getstringsize((unsigned char *)format_align->center,
                                &center_width, &string_height);
    }

    right_xpos = (viewport_width - right_width);
    center_xpos = (viewport_width - center_width) / 2;

    scroll_width = viewport_width;

    /* Checks for overlapping strings.
        If needed the overlapping strings will be merged, separated by a
        space */

    /* CASE 1: left and centered string overlap */
    /* there is a left string, need to merge left and center */
    if ((left_width != 0 && center_width != 0) &&
        (left_width + space_width > center_xpos)) {
        /* replace the former separator '\0' of left and
            center string with a space */
        *(--format_align->center) = ' ';
        /* calculate the new width and position of the merged string */
        left_width = left_width + space_width + center_width;
        /* there is no centered string anymore */
        center_width = 0;
    }
    /* there is no left string, move center to left */
    if ((left_width == 0 && center_width != 0) &&
        (left_width > center_xpos)) {
        /* move the center string to the left string */
        format_align->left = format_align->center;
        /* calculate the new width and position of the string */
        left_width = center_width;
        /* there is no centered string anymore */
        center_width = 0;
    }

    /* CASE 2: centered and right string overlap */
    /* there is a right string, need to merge center and right */
    if ((center_width != 0 && right_width != 0) &&
        (center_xpos + center_width + space_width > right_xpos)) {
        /* replace the former separator '\0' of center and
            right string with a space */
        *(--format_align->right) = ' ';
        /* move the center string to the right after merge */
        format_align->right = format_align->center;
        /* calculate the new width and position of the merged string */
        right_width = center_width + space_width + right_width;
        right_xpos = (viewport_width - right_width);
        /* there is no centered string anymore */
        center_width = 0;
    }
    /* there is no right string, move center to right */
    if ((center_width != 0 && right_width == 0) &&
        (center_xpos + center_width > right_xpos)) {
        /* move the center string to the right string */
        format_align->right = format_align->center;
        /* calculate the new width and position of the string */
        right_width = center_width;
        right_xpos = (viewport_width - right_width);
        /* there is no centered string anymore */
        center_width = 0;
    }

    /* CASE 3: left and right overlap
        There is no center string anymore, either there never
        was one or it has been merged in case 1 or 2 */
    /* there is a left string, need to merge left and right */
    if ((left_width != 0 && center_width == 0 && right_width != 0) &&
        (left_width + space_width > right_xpos)) {
        /* replace the former separator '\0' of left and
            right string with a space */
        *(--format_align->right) = ' ';
        /* calculate the new width and position of the string */
        left_width = left_width + space_width + right_width;
        /* there is no right string anymore */
        right_width = 0;
    }
    /* there is no left string, move right to left */
    if ((left_width == 0 && center_width == 0 && right_width != 0) &&
        (left_width > right_xpos)) {
        /* move the right string to the left string */
        format_align->left = format_align->right;
        /* calculate the new width and position of the string */
        left_width = right_width;
        /* there is no right string anymore */
        right_width = 0;
    }

    if (scroll && ((left_width > scroll_width) ||
                   (center_width > scroll_width) ||
                   (right_width > scroll_width)))
    {
        /* strings can be as large as MAX_LINE which exceeds put_lines()
         * limit for inline strings. Use $t to avoid truncation */
        linedes->scroll = true;
        display->put_line(0, line * string_height, linedes, "$t", format_align->left);
    }
    else
    {
        linedes->scroll = false;
        /* clear the line first */
        display->set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
        display->fillrect(0, line*string_height, viewport_width, string_height);
        display->set_drawmode(DRMODE_SOLID);

        /* Nasty hack: we output an empty scrolling string,
        which will reset the scroller for that line */
        display->puts_scroll(0, line, (unsigned char *)"");
        line *= string_height;
        center_xpos = (viewport_width-center_width)/2;
        right_xpos = viewport_width-right_width;
        /* print aligned strings. print whole line at once so that %Vs works
         * across the full viewport width */
        char *left   = format_align->left   ?: "";
        char *center = format_align->center ?: "";
        char *right  = format_align->right  ?: "";

        display->put_line(0, line, linedes, "$t$*s$t$*s$t", left,
                center_xpos - left_width, center,
                right_xpos - (center_xpos + center_width), right);
    }
}

void draw_peakmeters(struct gui_wps *gwps, int line_number,
                     struct viewport *viewport)
{
    struct wps_data *data = gwps->data;
    if (!data->peak_meter_enabled)
    {
        peak_meter_enable(false);
    }
    else
    {
        int h = font_get(viewport->font)->height;
        int peak_meter_y = line_number * h;

        /* The user might decide to have the peak meter in the last
            line so that it is only displayed if no status bar is
            visible. If so we neither want do draw nor enable the
            peak meter. */
        if (peak_meter_y + h <= viewport->y+viewport->height) {
            peak_meter_enable(true);
            peak_meter_screen(gwps->display, 0, peak_meter_y,
                              MIN(h, viewport->y+viewport->height - peak_meter_y));
        }
    }
}

bool skin_has_sbs(enum screen_type screen, struct wps_data *data)
{
    (void)screen;
    (void)data;
    bool draw = false;
    if (data->wps_sb_tag)
        draw = data->show_sb_on_wps;
    else if (statusbar_position(screen) != STATUSBAR_OFF)
        draw = true;
    return draw;
}

/* do the button loop as often as required for the peak meters to update
 * with a good refresh rate.
 */
int skin_wait_for_action(enum skinnable_screens skin, int context, int timeout)
{
    int button = ACTION_NONE;
    /* when the peak meter is enabled we want to have a
        few extra updates to make it look smooth. On the
        other hand we don't want to waste energy if it
        isn't displayed */
    bool pm=false;
    FOR_NB_SCREENS(i)
    {
       if(skin_get_gwps(skin, i)->data->peak_meter_enabled)
           pm = true;
    }

    if (pm) {
        long next_refresh = current_tick;
        long next_big_refresh = current_tick + timeout;
        button = BUTTON_NONE;
        while (TIME_BEFORE(current_tick, next_big_refresh)) {
            button = get_action(context,TIMEOUT_NOBLOCK);
            if (button != ACTION_NONE) {
                break;
            }
            peak_meter_peek();
            sleep(0);   /* Sleep until end of current tick. */

            if (TIME_AFTER(current_tick, next_refresh)) {
                FOR_NB_SCREENS(i)
                {
                    if(skin_get_gwps(skin, i)->data->peak_meter_enabled)
                        skin_update(skin, i, SKIN_REFRESH_PEAK_METER);
                    next_refresh += HZ / PEAK_METER_FPS;
                }
            }
        }

    }

    /* The peak meter is disabled
       -> no additional screen updates needed */
    else
    {
        button = get_action(context, timeout);
    }
    return button;
}