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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2005 by Kevin Ferrare
*
* 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.
*
****************************************************************************/
#ifndef _SCREEN_ACCESS_H_
#define _SCREEN_ACCESS_H_
#include "lcd.h"
#include "buttonbar.h"
enum screen_type {
SCREEN_MAIN
#ifdef HAVE_REMOTE_LCD
,SCREEN_REMOTE
#endif
};
#ifdef HAVE_REMOTE_LCD
#define NB_SCREENS 2
#else
#define NB_SCREENS 1
#endif
#ifdef HAVE_LCD_CHARCELLS
#define MAX_LINES_ON_SCREEN 2
#endif
struct screen
{
int width, height;
int nb_lines;
enum screen_type screen_type;
bool is_color;
int depth;
int char_width;
int char_height;
#ifdef HAS_BUTTONBAR
bool has_buttonbar;
#endif
#ifdef HAVE_LCD_BITMAP
void (*setmargins)(int x, int y);
int (*getxmargin)(void);
int (*getymargin)(void);
void (*setfont)(int newfont);
int (*getstringsize)(const unsigned char *str, int *w, int *h);
void (*putsxy)(int x, int y, const unsigned char *str);
void (*scroll_step)(int pixels);
void (*puts_scroll_style)(int x, int y,
const unsigned char *string, int style);
void (*mono_bitmap)(const unsigned char *src,
int x, int y, int width, int height);
void (*set_drawmode)(int mode);
#if LCD_DEPTH > 1
void (*set_background)(int brightness);
#endif /* LCD_DEPTH > 1 */
void (*update_rect)(int x, int y, int width, int height);
void (*fillrect)(int x, int y, int width, int height);
void (*drawrect)(int x, int y, int width, int height);
void (*drawpixel)(int x, int y);
void (*drawline)(int x1, int y1, int x2, int y2);
void (*vline)(int x, int y1, int y2);
void (*hline)(int x1, int x2, int y);
#endif /* HAVE_LCD_BITMAP */
#ifdef HAVE_LCD_CHARCELLS
void (*double_height)(bool on);
void (*putc)(int x, int y, unsigned short ch);
void (*icon)(int icon, bool enable);
#endif
void (*init)(void);
void (*puts_scroll)(int x, int y, const unsigned char *string);
void (*scroll_speed)(int speed);
void (*scroll_delay)(int ms);
void (*stop_scroll)(void);
void (*clear_display)(void);
#if defined(HAVE_LCD_BITMAP) || defined(SIMULATOR)
void (*update)(void);
#endif
void (*puts)(int x, int y, const unsigned char *str);
};
/*
* Initializes the given screen structure for a given display
* - screen : the screen structure
* - display_type : currently 2 possibles values : MAIN or REMOTE
*/
extern void screen_init(struct screen * screen, enum screen_type screen_type);
/*
* Compute the number of text lines the display can draw with the current font
* - screen : the screen structure
* Returns the number of text lines
*/
extern void screen_update_nblines(struct screen * screen);
#ifdef HAS_BUTTONBAR
/*
* Sets if the given screen has a buttonbar or not
* - screen : the screen structure
* - has : a boolean telling wether the current screen will have a buttonbar or not
*/
#define screen_has_buttonbar(screen, has_btnb) \
(screen)->has_buttonbar=has_btnb;
#endif
#ifdef HAVE_LCD_BITMAP
/*
* Compute the number of pixels from which text can be displayed
* - screen : the screen structure
* Returns the number of pixels
*/
#define screen_get_text_y_start(screen) \
( (global_settings.statusbar)? STATUSBAR_HEIGHT : 0)
/*
* Compute the number of pixels below which text can't be displayed
* - screen : the screen structure
* Returns the number of pixels
*/
#ifdef HAS_BUTTONBAR
#define screen_get_text_y_end(screen) \
( (screen)->height - ( (global_settings.buttonbar && \
(screen)->has_buttonbar)? \
BUTTONBAR_HEIGHT : 0) )
#else
#define screen_get_text_y_end(screen) \
( (screen)->height )
#endif /* HAS_BUTTONBAR */
#endif /* HAVE_LCD_BITMAP */
/*
* Initializes the whole screen_access api
*/
extern void screen_access_init(void);
/*
* Just recalculate the number of text lines that can be displayed
* on each screens in case of poilice change for example
*/
extern void screen_access_update_nb_lines(void);
/*
* exported screens array that should be used
* by each app that wants to write to access display
*/
extern struct screen screens[NB_SCREENS];
#endif /*_SCREEN_ACCESS_H_*/
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