summaryrefslogtreecommitdiffstats
path: root/apps/gui/skin_engine/wps_internals.h
blob: 1049954cafb4f20b957d68fe301e5fb515cfbaa1 (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
/***************************************************************************
 *             __________               __   ___.
 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
 *                     \/            \/     \/    \/            \/
 * $Id$
 *
 * Copyright (C) 2007 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.
 *
 ****************************************************************************/

 /* This stuff is for the wps engine only.. anyone caught using this outside
  * of apps/gui/wps_engine will be shot on site! */

#ifndef _WPS_ENGINE_INTERNALS_
#define _WPS_ENGINE_INTERNALS_

#include "tag_table.h"
#include "skin_parser.h"
#ifndef __PCTOOL__
#include "core_alloc.h"
#endif

struct wps_data;

struct skin_stats {
    size_t buflib_handles;
    size_t tree_size;
    size_t images_size;
};

int skin_get_num_skins(void);
struct skin_stats *skin_get_stats(int number, int screen);
#define skin_clear_stats(stats) memset(stats, 0, sizeof(struct skin_stats))
bool skin_backdrop_get_debug(int index, char **path, int *ref_count, size_t *size);

/*
 * setup up the skin-data from a format-buffer (isfile = false)
 * or from a skinfile (isfile = true)
 */
bool skin_data_load(enum screen_type screen, struct wps_data *wps_data,
                    const char *buf, bool isfile, struct skin_stats *stats);

/* Timeout unit expressed in HZ. In WPS, all timeouts are given in seconds
   (possibly with a decimal fraction) but stored as integer values.
   E.g. 2.5 is stored as 25. This means 25 tenth of a second, i.e. 25 units.
*/
#define TIMEOUT_UNIT (HZ/10) /* I.e. 0.1 sec */
#define DEFAULT_SUBLINE_TIME_MULTIPLIER 20 /* In TIMEOUT_UNIT's */

/* TODO: sort this mess out */

#include "screen_access.h"
#include "statusbar.h"
#include "metadata.h"

#define TOKEN_VALUE_ONLY 0x0DEADC0D

/* wps_data*/
struct wps_token {
    union {
        char c;
        unsigned short i;
        long l;
        OFFSETTYPE(void*) data;
    } value;

    enum skin_token_type type; /* enough to store the token type */
    /* Whether the tag (e.g. track name or the album) refers the
       current or the next song (false=current, true=next) */
    bool next;
};

char* get_dir(char* buf, int buf_size, const char* path, int level);


struct skin_token_list {
    OFFSETTYPE(struct wps_token *) token;
    OFFSETTYPE(struct skin_token_list *) next;
};

struct gui_img {
    short int x;                  /* x-pos */
    short int y;                  /* y-pos */
    short int num_subimages;      /* number of sub-images */
    short int subimage_height;    /* height of each sub-image */
    struct bitmap bm;
    int buflib_handle;
    OFFSETTYPE(char*) label;
    bool loaded;            /* load state */
    int display;
    bool using_preloaded_icons; /* using the icon system instead of a bmp */
    bool is_9_segment;
};

struct image_display {
    OFFSETTYPE(char*) label;
    int subimage;
    OFFSETTYPE(struct wps_token*) token; /* the token to get the subimage number from */
    int offset; /* offset into the bitmap strip to start */
};

struct progressbar {
    enum skin_token_type type;
    /* regular pb */
    short x;
    /* >=0: explicitly set in the tag -> y-coord within the viewport
       <0 : not set in the tag -> negated 1-based line number within
            the viewport. y-coord will be computed based on the font height */
    short y;
    short width;
    short height;
    bool  follow_lang_direction;

    OFFSETTYPE(struct gui_img *) image;

    bool invert_fill_direction;
    bool nofill;
    bool noborder;
    bool nobar;
    OFFSETTYPE(struct gui_img *) slider;
    bool horizontal;
    OFFSETTYPE(struct gui_img *) backdrop;
    int setting_id; /* for the setting bar type */

};

struct draw_rectangle {
    int x;
    int y;
    int width;
    int height;
    unsigned start_colour;
    unsigned end_colour;
};

struct align_pos {
    char* left;
    char* center;
    char* right;
};

#define WPS_MAX_TOKENS      1150

enum wps_parse_error {
    PARSE_OK,
    PARSE_FAIL_UNCLOSED_COND,
    PARSE_FAIL_INVALID_CHAR,
    PARSE_FAIL_COND_SYNTAX_ERROR,
    PARSE_FAIL_COND_INVALID_PARAM,
    PARSE_FAIL_LIMITS_EXCEEDED,
};
#ifdef HAVE_LCD_COLOR
struct gradient_config {
    unsigned start;
    unsigned end;
    unsigned text;
    int lines_count;
};
#endif

#define VP_DRAW_HIDEABLE    0x1
#define VP_DRAW_HIDDEN      0x2
#define VP_DRAW_WASHIDDEN   0x4
/* these are never drawn, nor cleared, i.e. just ignored */
#define VP_NEVER_VISIBLE    0x8
#ifndef __PCTOOL__
#define VP_DEFAULT_LABEL    -200
#else
#define VP_DEFAULT_LABEL    NULL
#endif
#define VP_DEFAULT_LABEL_STRING "|"
struct skin_viewport {
    struct viewport vp;   /* The LCD viewport struct */
    struct frame_buffer_t framebuf; /* holds reference to current framebuffer */
    char hidden_flags;
    bool is_infovp;
    OFFSETTYPE(char*) label;
    int   parsed_fontid;
#if (LCD_DEPTH > 1) || (defined(HAVE_REMOTE_LCD) && (LCD_REMOTE_DEPTH > 1))
    bool output_to_backdrop_buffer;
    bool fgbg_changed;
#ifdef HAVE_LCD_COLOR
    struct gradient_config start_gradient;
#endif
#endif
};
struct viewport_colour {
    OFFSETTYPE(struct viewport *) vp;
    unsigned colour;
};

#ifdef HAVE_TOUCHSCREEN
struct touchregion {
    OFFSETTYPE(char*) label;            /* label to identify this region */
    OFFSETTYPE(struct skin_viewport*) wvp;/* The viewport this region is in */
    short int x;             /* x-pos */
    short int y;             /* y-pos */
    short int width;         /* width */
    short int height;        /* height */
    short int wpad;          /* padding to width */
    short int hpad;          /* padding to height */
    bool reverse_bar;        /* if true 0% is the left or top */
    bool allow_while_locked;
    enum {
        PRESS,               /* quick press only */
        LONG_PRESS,          /* Long press without repeat */
        REPEAT,              /* long press allowing repeats */
    } press_length;
    int action;              /* action this button will return */
    bool armed;              /* A region is armed on press. Only armed regions are triggered
                                on repeat or release. */
    union {                  /* Extra data, action dependant */
        struct touchsetting {
            const struct settings_list *setting; /* setting being controlled */
            union {         /* Value to set the setting to for ACTION_SETTING_SET */
                int number;
                OFFSETTYPE(char*) text;
            } value;
        } setting_data;
        int   value;
    };
    long last_press;        /* last tick this was pressed */
    OFFSETTYPE(struct progressbar*) bar;
};



struct touchregion_lastpress {
    OFFSETTYPE(struct touchregion *) region;
    long timeout;
};
#endif

struct playlistviewer {
    bool show_icons;
    int start_offset;
    OFFSETTYPE(struct skin_element *) line;
};


#ifdef HAVE_ALBUMART

/* albumart definitions */
#define WPS_ALBUMART_NONE           0      /* WPS does not contain AA tag */
#define WPS_ALBUMART_CHECK          1      /* WPS contains AA conditional tag */
#define WPS_ALBUMART_LOAD           2      /* WPS contains AA tag */

#define WPS_ALBUMART_ALIGN_RIGHT    1    /* x align:   right */
#define WPS_ALBUMART_ALIGN_CENTER   2    /* x/y align: center */
#define WPS_ALBUMART_ALIGN_LEFT     4    /* x align:   left */
#define WPS_ALBUMART_ALIGN_TOP      1    /* y align:   top */
#define WPS_ALBUMART_ALIGN_BOTTOM   4    /* y align:   bottom */

struct skin_albumart {
    /* Album art support */
    int x;
    int y;
    int width;
    int height;

    unsigned char xalign; /* WPS_ALBUMART_ALIGN_LEFT, _CENTER, _RIGHT */
    unsigned char yalign; /* WPS_ALBUMART_ALIGN_TOP, _CENTER, _BOTTOM */
    unsigned char state; /* WPS_ALBUMART_NONE, _CHECK, _LOAD */

    OFFSETTYPE(struct viewport *) vp;
    int draw_handle;
};
#endif


struct line {
    unsigned update_mode;
};

struct line_alternator {
    int current_line;
    unsigned long next_change_tick;
};

struct conditional {
    int last_value;
    OFFSETTYPE(struct wps_token *) token;
};

struct logical_if {
    OFFSETTYPE(struct wps_token *) token;
    enum {
        IF_EQUALS, /* == */
        IF_NOTEQUALS, /* != */
        IF_LESSTHAN, /* < */
        IF_LESSTHAN_EQ, /* <= */
        IF_GREATERTHAN, /* > */
        IF_GREATERTHAN_EQ /* >= */
    } op;
    struct skin_tag_parameter operand;
    int num_options;
};

struct substring {
    int start;
    int length;
    bool expect_number;
    OFFSETTYPE(struct wps_token *) token;
};

struct listitem {
    bool wrap;
    short offset;
};

struct listitem_viewport_cfg {
    struct wps_data *data;
    OFFSETTYPE(char *)   label;
    int     width;
    int     height;
    int     xmargin;
    int     ymargin;
    bool    tile;
    struct skin_viewport selected_item_vp;
};

#ifdef HAVE_SKIN_VARIABLES
struct skin_var {
    OFFSETTYPE(const char *) label;
    int value;
    long last_changed;
};
struct skin_var_lastchange {
    OFFSETTYPE(struct skin_var *) var;
    long timeout;
};
struct skin_var_changer {
    OFFSETTYPE(struct skin_var *) var;
    int newval;
    bool direct; /* true to make val=newval, false for val += newval */
    int max;
};
#endif

/* wps_data
   this struct holds all necessary data which describes the
   viewable content of a wps */
struct wps_data
{
    int buflib_handle;

    OFFSETTYPE(struct skin_element *) tree;
    OFFSETTYPE(struct skin_token_list *) images;
    OFFSETTYPE(int *) font_ids;
    int font_count;
#ifdef HAVE_BACKDROP_IMAGE
    int backdrop_id;
    bool use_extra_framebuffer;
#endif

#ifdef HAVE_TOUCHSCREEN
    OFFSETTYPE(struct skin_token_list *) touchregions;
    bool touchscreen_locked;
#endif
#ifdef HAVE_ALBUMART
    OFFSETTYPE(struct skin_albumart *) albumart;
    int    playback_aa_slot;
    /* copy of albumart to survive skin resets, used to check if albumart
     * dimensions changed on skin change */
    short last_albumart_width, last_albumart_height;
#endif

#ifdef HAVE_SKIN_VARIABLES
    OFFSETTYPE(struct skin_token_list *) skinvars;
#endif

    bool peak_meter_enabled;
    bool wps_sb_tag;
    bool show_sb_on_wps;
    bool wps_loaded;
};

#ifndef __PCTOOL__
static inline char* get_skin_buffer(struct wps_data* data)
{
    if (data->buflib_handle > 0)
        return core_get_data(data->buflib_handle);
    return NULL;
}
#else
#define get_skin_buffer(d) skin_buffer
#endif

/* wps_data end */

/* gui_wps
   defines a wps with its data, state,
   and the screen on which the wps-content should be drawn */
struct gui_wps
{
    struct screen *display;
    struct wps_data *data;
};

/* gui_wps end */

void get_image_filename(const char *start, const char* bmpdir,
                                char *buf, int buf_size);
/***** wps_tokens.c ******/

const char *get_token_value(struct gui_wps *gwps,
                           struct wps_token *token, int offset,
                           char *buf, int buf_size,
                           int *intval);

/* Get the id3 fields from the cuesheet */
const char *get_cuesheetid3_token(struct wps_token *token, struct mp3entry *id3,
                                  int offset_tracks, char *buf, int buf_size);
const char *get_id3_token(struct wps_token *token, struct mp3entry *id3,
                          char *filename, char *buf, int buf_size, int limit, int *intval);
#if CONFIG_TUNER
const char *get_radio_token(struct wps_token *token, int preset_offset,
                            char *buf, int buf_size, int limit, int *intval);
#endif

enum skin_find_what {
    SKIN_FIND_VP = 0,
    SKIN_FIND_UIVP,
    SKIN_FIND_IMAGE,
#ifdef HAVE_TOUCHSCREEN
    SKIN_FIND_TOUCHREGION,
#endif
#ifdef HAVE_SKIN_VARIABLES
    SKIN_VARIABLE,
#endif
};
void *skin_find_item(const char *label, enum skin_find_what what,
                     struct wps_data *data);
#ifdef SIMULATOR
#define DEBUG_SKIN_ENGINE
extern bool debug_wps;
#endif

#endif