rockbox/apps/gui/skin_engine/wps_internals.h
Jonathan Gordon 3f8e7fc26f New feature for the %xd() (display a preloaded image) skin tag.
It can now automatically load the correct subimage from a strip (assuming the strip is in the correct order)  by giving a tag for the 2nd param.
example: %xd(F, %mp) which is equivilant to %?mp<%xd(Fa)|%xd(Fb)|%xd(Fc)|%xd(Fd)|%xd(Fe)>
You can also set the subimage offset.. i.e %xd(E, %mm, -1) which means "show nothing for the first value of %mm and use the bitmap strip for the remaining values"

if a tag+offset is <0 or greater than the number of subimages in a strip he image is cleared (I'm open to changing this if someone has a better idea)

cabbiev2.176x220x16.wps is an example of how to use this

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27717 a1c6a512-1295-4272-9138-f99709370657
2010-08-05 11:28:48 +00:00

359 lines
10 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_
/* 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 */
#include "skin_tokens.h"
#include "tag_table.h"
#include "skin_parser.h"
/* TODO: sort this mess out */
#include "screen_access.h"
#include "statusbar.h"
#include "metadata.h"
/* alignments */
#define WPS_ALIGN_RIGHT 32
#define WPS_ALIGN_CENTER 64
#define WPS_ALIGN_LEFT 128
#define TOKEN_VALUE_ONLY 0xDEADD0D0
#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 */
#endif /* HAVE_ALBUMART */
/* wps_data*/
#ifdef HAVE_LCD_BITMAP
struct gui_img {
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;
char label;
bool loaded; /* load state */
bool always_display; /* not using the preload/display mechanism */
int display;
};
struct image_display {
char label;
int subimage;
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;
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;
/*progressbar image*/
struct bitmap bm;
bool have_bitmap_pb;
};
#endif
struct align_pos {
char* left;
char* center;
char* right;
};
#ifdef HAVE_LCD_BITMAP
#define MAX_IMAGES (26*2) /* a-z and A-Z */
#define MAX_PROGRESSBARS 3
/* The image buffer is big enough to store one full-screen native bitmap,
plus two full-screen mono bitmaps. */
#define WPS_MAX_VIEWPORTS 24
#define WPS_MAX_LINES ((LCD_HEIGHT/5+1) * 2)
#define WPS_MAX_SUBLINES (WPS_MAX_LINES*3)
#define WPS_MAX_TOKENS 1024
#define WPS_MAX_STRINGS 128
#define STRING_BUFFER_SIZE 1024
#define WPS_MAX_COND_LEVEL 10
#else
#define WPS_MAX_VIEWPORTS 2
#define WPS_MAX_LINES 2
#define WPS_MAX_SUBLINES 12
#define WPS_MAX_TOKENS 64
#define WPS_MAX_STRINGS 32
#define STRING_BUFFER_SIZE 64
#define WPS_MAX_COND_LEVEL 5
#endif
#define SUBLINE_RESET -1
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,
};
#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
#define VP_DEFAULT_LABEL "|"
struct skin_viewport {
struct viewport vp; /* The LCD viewport struct */
char hidden_flags;
bool is_infovp;
char* label;
unsigned start_fgcolour;
unsigned start_bgcolour;
};
struct viewport_colour {
struct viewport *vp;
unsigned colour;
};
#ifdef HAVE_TOUCHSCREEN
struct touchregion {
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 */
enum {
WPS_TOUCHREGION_ACTION,
WPS_TOUCHREGION_SCROLLBAR,
WPS_TOUCHREGION_VOLUME
} type; /* type of touch region */
bool reverse_bar; /* if true 0% is the left or top */
bool repeat; /* requires the area be held for the action */
int action; /* action this button will return */
bool armed; /* A region is armed on press. Only armed regions are triggered
on repeat or release. */
};
#endif
enum info_line_type {
TRACK_HAS_INFO = 0,
TRACK_HAS_NO_INFO
};
struct playlistviewer {
struct viewport *vp;
bool show_icons;
int start_offset;
#ifdef HAVE_TC_RAMCACHE
struct mp3entry tempid3;
#endif
struct skin_element *lines[2];
};
#ifdef HAVE_ALBUMART
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 */
struct viewport *vp;
int draw_handle;
};
#endif
struct line {
int timeout; /* if inside a line alternator */
unsigned update_mode;
};
struct line_alternator {
int current_line;
unsigned long last_change_tick;
};
struct conditional {
int last_value;
struct wps_token *token;
};
/* wps_data
this struct holds all necessary data which describes the
viewable content of a wps */
struct wps_data
{
struct skin_element *tree;
#ifdef HAVE_LCD_BITMAP
struct skin_token_list *images;
struct skin_token_list *progressbars;
#endif
#if LCD_DEPTH > 1 || defined(HAVE_REMOTE_LCD) && LCD_REMOTE_DEPTH > 1
char *backdrop;
#endif
#ifdef HAVE_TOUCHSCREEN
struct skin_token_list *touchregions;
#endif
#ifdef HAVE_ALBUMART
struct skin_albumart *albumart;
int playback_aa_slot;
#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;
};
/* 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 wps_time_countup;
bool is_fading;
};
/* Holds data for all screens in a skin. */
struct wps_sync_data
{
/* suitable for the viewportmanager, possibly only temporary here
* needs to be same for all screens! can't be split up for screens
* due to what viewportmanager_set_statusbar() accepts
* (FIXME?) */
int statusbars;
/* indicates whether the skin needs a full update for all screens */
bool do_full_update;
};
/* 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;
struct wps_state *state;
/* must point to the same struct for all screens */
struct wps_sync_data *sync_data;
};
/* gui_wps end */
char *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,
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 *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
struct gui_img* find_image(char label, struct wps_data *data);
struct skin_viewport* find_viewport(char *label, bool uivp, struct wps_data *data);
#ifdef SIMULATOR
#define DEBUG_SKIN_ENGINE
extern bool debug_wps;
#endif
#endif