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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2008 by Jonathan Gordon
*
* 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.
*
****************************************************************************/
#ifndef __VIEWPORT_H__
#define __VIEWPORT_H__
#include "config.h"
#include "lcd.h"
#include "system.h"
#include "screen_access.h"
/* return the number of text lines in the vp viewport */
int viewport_get_nb_lines(struct viewport *vp);
void viewport_set_defaults(struct viewport *vp, enum screen_type screen);
/* Used to specify which screens the statusbar (SB) should be displayed on.
*
* The parameter is a bit OR'ed combination of the following (screen is
* SCREEN_MAIN or SCREEN_REMOTE from screen_access.h):
*
* VP_SB_HIDE_ALL means "hide the SB on all screens"
* VP_SB_ONSCREEN(screen) means "display the SB on the given screen
* as specified by the SB setting for that screen"
* VP_SB_IGNORE_SETTING(screen) means "ignore the SB setting for that screen"
* VP_SB_ALLSCREENS means "VP_SB_ONSCREEN for all screens"
*
* In most cases, VP_SB_ALLSCREENS should be used which means display the SB
* as specified by the settings.
* For the WPS (and other possible exceptions) use VP_SB_IGNORE_SETTING() to
* FORCE the statusbar on for the given screen (i.e it will show regardless
* of the setting)
*
* Returns the status before the call. This value can be used to restore the
* SB "displaying rules".
*/
#define THEME_STATUSBAR (BIT_N(0))
#define THEME_UI_VIEWPORT (BIT_N(1))
#define THEME_ALL (~(0u))
#define VP_SB_HIDE_ALL 0
#define VP_SB_ONSCREEN(screen) BIT_N(screen)
#define VP_SB_IGNORE_SETTING(screen) BIT_N(4+screen)
#define VP_SB_ALLSCREENS (VP_SB_ONSCREEN(0)|VP_SB_ONSCREEN(1))
/*
* Initialize the viewportmanager, which in turns initializes the UI vp and
* statusbar stuff
*/
void viewportmanager_init(void);
int viewportmanager_get_statusbar(void);
int viewportmanager_set_statusbar(int enabled);
/* call this when a theme changed */
void viewportmanager_theme_changed(int);
/*
* Initializes the given viewport with maximum dimensions minus status- and
* buttonbar
*/
void viewport_set_fullscreen(struct viewport *vp, enum screen_type screen);
#ifdef HAVE_LCD_BITMAP
/*
* Parse a viewport definition (vp_def), which looks like:
*
* Screens with depth > 1:
* X|Y|width|height|font|foregorund color|background color
* Screens with depth = 1:
* X|Y|width|height|font
*
* | is a separator and can be specified via the parameter
*
* Returns the pointer to the char after the last character parsed
* if everything went OK or NULL if an error happened (some values
* not specified in the definition)
*/
const char* viewport_parse_viewport(struct viewport *vp,
enum screen_type screen,
const char *vp_def,
const char separator);
/*
* Returns a pointer to the current viewport
* - That could be the UI vp, or a viewport passed to do_menu() or the like
*/
struct viewport* viewport_get_current_vp(void);
/*
* Set the UI vp pointer to a different one - NULL to reset to the UI vp
*
* This is needed since the UI viewport needs is kept in RAM.
*/
void viewport_set_current_vp(struct viewport* vp);
#else /* HAVE_LCD_CHARCELL */
#define viewport_set_current_vp(a)
#define viewport_get_current_vp() NULL
#endif
#endif /* __VIEWPORT_H__ */
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