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/*
* Copyright (C) 2001-2004 Michael H. Schimek
* Copyright (C) 2000-2003 Iaki Garca Etxebarria
*
* 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 program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* $Id: control.h,v 1.3 2006/03/21 19:01:22 mschimek Exp $ */
#ifndef __ZTV_CONTROL_H__
#define __ZTV_CONTROL_H__
#include <assert.h>
#include "macros.h"
#include "callback.h"
TV_BEGIN_DECLS
/* Programmatically accessable controls. Other controls
are anonymous, only the user knows what they do. Keep
the list short. */
typedef enum {
TV_CONTROL_ID_NONE,
TV_CONTROL_ID_UNKNOWN = TV_CONTROL_ID_NONE,
TV_CONTROL_ID_BRIGHTNESS,
TV_CONTROL_ID_CONTRAST,
TV_CONTROL_ID_SATURATION,
TV_CONTROL_ID_HUE,
TV_CONTROL_ID_MUTE,
TV_CONTROL_ID_VOLUME,
TV_CONTROL_ID_BASS,
TV_CONTROL_ID_TREBLE,
/* preliminary */
TV_CONTROL_ID_AUDIO_MODE,
} tv_control_id;
typedef enum {
TV_CONTROL_TYPE_NONE,
TV_CONTROL_TYPE_INTEGER, /* integer [min, max] */
TV_CONTROL_TYPE_BOOLEAN, /* integer [0, 1] */
TV_CONTROL_TYPE_CHOICE, /* multiple choice */
TV_CONTROL_TYPE_ACTION, /* setting has one-time effect */
TV_CONTROL_TYPE_COLOR /* RGB color entry */
} tv_control_type;
typedef struct _tv_control tv_control;
struct _tv_control {
tv_control * _next; /* private, use tv_control_next() */
void * _parent;
tv_callback * _callback;
char * label; /* localized */
unsigned int hash;
tv_control_type type;
tv_control_id id;
char ** menu; /* localized; last entry NULL */
#if 0
add? unsigned int selectable; /* menu item 1 << n */
control enabled/disabled flag?
#endif
int minimum;
int maximum;
int step;
int reset;
int value; /* last known, not current value */
};
tv_bool
tv_control_copy (tv_control * dst,
const tv_control * src);
tv_control *
tv_control_dup (const tv_control * control);
void
tv_control_destroy (tv_control * control);
void
tv_control_delete (tv_control * control);
typedef void
tv_control_callback_fn (tv_control * control,
void * user_data);
static __inline__ tv_callback *
tv_control_add_callback (tv_control * control,
tv_control_callback_fn *notify,
tv_control_callback_fn *destroy,
void * user_data)
{
assert (control != NULL);
return tv_callback_add (&control->_callback,
(tv_callback_fn *) notify,
(tv_callback_fn *) destroy,
user_data);
}
TV_END_DECLS
#endif /* __ZTV_CONTROL_H__ */
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