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diff --git a/gst-mixer-applet/applet.h b/gst-mixer-applet/applet.h
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+++ b/gst-mixer-applet/applet.h
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+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 2 -*- */
+/* MATE Volume Applet
+ * Copyright (C) 2004 Ronald Bultje <[email protected]>
+ *
+ * applet.h: the main applet
+ *
+ * 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 __GVA_APPLET_H__
+#define __GVA_APPLET_H__
+
+#include <glib.h>
+#include <glib/gi18n.h>
+
+#include <gtk/gtk.h>
+#include <gio/gio.h>
+#include <mate-panel-applet-gsettings.h>
+#include <gst/gst.h>
+#include <gst/interfaces/mixer.h>
+
+#include "dock.h"
+
+G_BEGIN_DECLS
+
+#define MATE_TYPE_VOLUME_APPLET \
+  (mate_volume_applet_get_type ())
+#define MATE_VOLUME_APPLET(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST ((obj), MATE_TYPE_VOLUME_APPLET, \
+			       MateVolumeApplet))
+#define MATE_VOLUME_APPLET_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST ((klass), MATE_TYPE_VOLUME_APPLET, \
+			    MateAppletAppletAppletClass))
+#define MATE_IS_VOLUME_APPLET(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE ((obj), MATE_TYPE_VOLUME_APPLET))
+#define MATE_IS_VOLUME_APPLET_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_TYPE ((klass), MATE_TYPE_VOLUME_APPLET))
+
+struct _MateVolumeApplet {
+  MatePanelApplet parent;
+
+  /* menu actions */
+  GtkActionGroup *action_group;
+
+  /* our main icon, which is our panel user interface */
+  GtkImage *image;
+
+  /* the docked window containing the volume widget */
+  MateVolumeAppletDock *dock;
+  gboolean pop;
+  /* the adjustment connected to the dock slider */
+  GtkAdjustment *adjustment;
+
+  /* list of volume control elements */
+  GList *elements;
+
+  /* gsettings */
+  GSettings *settings;
+
+  /* element */
+  GstMixer *mixer;
+  GstBus *bus;
+  gboolean lock;
+  gint state;
+  GList *tracks;
+
+  /* timeout ID, used to decouple on disposal */
+  guint timeout;
+
+  /* preferences */
+  GtkWidget *prefs;
+
+  /* icon theme */
+  GdkPixbuf *pix[5];
+  gint panel_size;
+
+  /* use same object for setting tooltop */
+  gboolean force_next_update;
+};
+
+typedef struct _MateVolumeAppletClass {
+  MatePanelAppletClass klass;
+} MateVolumeAppletClass;
+
+void     mate_volume_applet_adjust_volume (GstMixer      *mixer,
+					    GstMixerTrack *track,
+					    gdouble        volume);
+void     mate_volume_applet_toggle_mute (MateVolumeApplet *applet);
+void     mate_volume_applet_run_mixer (MateVolumeApplet *applet);
+GType    mate_volume_applet_get_type (void);
+gboolean mate_volume_applet_setup    (MateVolumeApplet *applet,
+				       GList             *elements);
+gboolean mixer_is_muted (MateVolumeApplet *applet);
+
+G_END_DECLS
+
+#endif /* __GVA_APPLET_H__ */