rockbox/apps/gui/skin_engine/wps_internals.h
Jonathan Gordon 65f9df3083 skin_engine: Allow the %St() (setting) skin tag be used as a bar
%St(<setting name>) or %St(<bar tags>, setting, <setting name>)

Change-Id: I71396d683634d4d1ad2357018c4029ecb4229677
2012-07-05 23:30:06 +10:00

456 lines
12 KiB
C

/***************************************************************************
* __________ __ ___.
* 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
/* 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;
};
#ifdef HAVE_LCD_BITMAP
struct gui_img {
OFFSETTYPE(struct viewport*) vp; /* The viewport to display this image in */
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 */
};
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;
OFFSETTYPE(struct viewport *) vp;
/* 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 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;
};
#endif
struct align_pos {
char* left;
char* center;
char* right;
};
#ifdef HAVE_LCD_BITMAP
#define WPS_MAX_TOKENS 1150
#else
#define WPS_MAX_TOKENS 64
#endif
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 */
char hidden_flags;
bool is_infovp;
OFFSETTYPE(char*) label;
int parsed_fontid;
#if LCD_DEPTH > 1
bool output_to_backdrop_buffer;
unsigned start_fgcolour;
unsigned start_bgcolour;
#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 */
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 {
OFFSETTYPE(struct viewport *) vp;
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;
};
#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;
#ifdef HAVE_LCD_BITMAP
OFFSETTYPE(struct skin_token_list *) images;
OFFSETTYPE(int *) font_ids;
int font_count;
#endif
#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;
#endif
#ifdef HAVE_SKIN_VARIABLES
OFFSETTYPE(struct skin_token_list *) skinvars;
#endif
#ifdef HAVE_LCD_BITMAP
bool peak_meter_enabled;
bool wps_sb_tag;
bool show_sb_on_wps;
#else /*HAVE_LCD_CHARCELLS */
unsigned short wps_progress_pat[8];
bool full_line_progressbar;
#endif
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 */
/* wps_state
holds the data which belongs to the current played track,
the track which will be played afterwards, current path to the track
and some status infos */
struct wps_state
{
struct mp3entry* id3;
struct mp3entry* nid3;
int ff_rewind_count;
bool ff_rewind;
bool paused;
bool is_fading;
};
/* change the ff/rew-status
if ff_rew = true then we are in skipping mode
else we are in normal mode */
/* void wps_state_update_ff_rew(bool ff_rew); Currently unused */
/* change the tag-information of the current played track
and the following track */
/* void wps_state_update_id3_nid3(struct mp3entry *id3, struct mp3entry *nid3); Currently unused */
/* wps_state 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,
#ifdef HAVE_LCD_BITMAP
SKIN_FIND_IMAGE,
#endif
#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