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/* MATE Volume Control
* Copyright (C) 2003-2004 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* volume.h: representation of a track's volume channels
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GVC_VOLUME_H__
#define __GVC_VOLUME_H__
#include <glib.h>
#include <gtk/gtk.h>
#include <gst/interfaces/mixer.h>
G_BEGIN_DECLS
#define MATE_VOLUME_CONTROL_TYPE_VOLUME \
(mate_volume_control_volume_get_type ())
#define MATE_VOLUME_CONTROL_VOLUME(obj) \
(G_TYPE_CHECK_INSTANCE_CAST ((obj), MATE_VOLUME_CONTROL_TYPE_VOLUME, \
MateVolumeControlVolume))
#define MATE_VOLUME_CONTROL_VOLUME_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), MATE_VOLUME_CONTROL_TYPE_VOLUME, \
MateVolumeControlVolumeClass))
#define MATE_VOLUME_CONTROL_IS_VOLUME(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), MATE_VOLUME_CONTROL_TYPE_VOLUME))
#define MATE_VOLUME_CONTROL_IS_VOLUME_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), MATE_VOLUME_CONTROL_TYPE_VOLUME))
typedef struct _MateVolumeControlVolume {
GtkFixed parent;
/* track + mixer */
GstMixer *mixer;
GstMixerTrack *track;
/* padding */
gint padding;
/* childs */
GList *scales;
GtkWidget *button, *image;
/* this will be set to true if the user changes volumes
* in the mixer as a response to a user query. It prevents
* infinite loops. */
gboolean locked;
/* signal ID */
guint id;
} MateVolumeControlVolume;
typedef struct _MateVolumeControlVolumeClass {
GtkFixedClass klass;
} MateVolumeControlVolumeClass;
GType mate_volume_control_volume_get_type (void);
GtkWidget * mate_volume_control_volume_new (GstMixer *mixer,
GstMixerTrack *track,
gint padding);
void mate_volume_control_volume_ask (MateVolumeControlVolume *volume,
gboolean * real_zero,
gboolean * slider_zero);
void mate_volume_control_volume_update (MateVolumeControlVolume *volume);
G_END_DECLS
#endif /* __GVC_VOLUME_H__ */
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