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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 _GUI_OPTION_SELECT_H_
#define _GUI_OPTION_SELECT_H_
#include "settings.h"
typedef void option_formatter(char* dest, int dest_length,
int variable, const char* unit);
struct option_select
{
const char * title;
int min_value;
int max_value;
int step;
int option;
const char * extra_string;
/* In the case the option is a number */
option_formatter *formatter;
const struct opt_items * items;
bool limit_loop;
};
/*
* Initializes an option containing a numeric values
* - title : the title of the option
* - init_value : the initial value the number will be
* - min_value, max_value : bounds to the value
* - step : the ammount you want to add / withdraw to the initial number
* each time a key is pressed
* - unit : the unit in which the value is (ex "s", "bytes", ...)
* - formatter : a callback function that generates a string
* from the number it gets
*/
extern void option_select_init_numeric(struct option_select * opt,
const char * title,
int init_value,
int min_value,
int max_value,
int step,
const char * unit,
option_formatter *formatter);
/*
* Initializes an option containing a list of choices
* - title : the title of the option
* - selected : the initially selected item
* - items : the list of items, defined in settings.h
* - nb_items : the number of items in the 'items' list
*/
extern void option_select_init_items(struct option_select * opt,
const char * title,
int selected,
const struct opt_items * items,
int nb_items);
/*
* Gets the selected option
* - opt : the option struct
* - buffer : a buffer to eventually format the option
* Returns the selected option
*/
extern const char * option_select_get_text(struct option_select * opt,
char * buffer,
int buffersize);
/*
* Selects the next value
* - opt : the option struct
*/
extern void option_select_next(struct option_select * opt);
/*
* Selects the previous value
* - opt : the option struct
*/
extern void option_select_prev(struct option_select * opt);
#endif /* _GUI_OPTION_SELECT_H_ */
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