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90 lines
2.4 KiB
C
90 lines
2.4 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GTK_DIAL_H__
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#define __GTK_DIAL_H__
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#include <gdk/gdk.h>
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#include <gtk/gtkadjustment.h>
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#include <gtk/gtkwidget.h>
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G_BEGIN_DECLS
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#define GTK_DIAL(obj) G_TYPE_CHECK_INSTANCE_CAST (obj, gtk_dial_get_type (), GtkDial)
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#define GTK_DIAL_CLASS(klass) G_TYPE_CHECK_CLASS_CAST (klass, gtk_dial_get_type (), GtkDialClass)
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#define GTK_IS_DIAL(obj) G_TYPE_CHECK_INSTANCE_TYPE (obj, gtk_dial_get_type ())
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typedef struct _GtkDial GtkDial;
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typedef struct _GtkDialClass GtkDialClass;
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struct _GtkDial
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{
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GtkWidget widget;
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/* update policy (GTK_UPDATE_[CONTINUOUS/DELAYED/DISCONTINUOUS]) */
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guint policy : 2;
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/* Button currently pressed or 0 if none */
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guint8 button;
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/* Dimensions of dial components */
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gint radius;
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gint pointer_width;
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/* ID of update timer, or 0 if none */
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guint32 timer;
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/* Current angle */
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gfloat angle;
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gfloat last_angle;
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/* Old values from adjustment stored so we know when something changes */
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gfloat old_value;
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gfloat old_lower;
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gfloat old_upper;
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/* The adjustment object that stores the data for this dial */
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GtkAdjustment *adjustment;
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};
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struct _GtkDialClass
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{
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GtkWidgetClass parent_class;
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};
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GtkWidget* gtk_dial_new (GtkAdjustment *adjustment);
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GType gtk_dial_get_type (void);
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GtkAdjustment* gtk_dial_get_adjustment (GtkDial *dial);
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void gtk_dial_set_update_policy (GtkDial *dial,
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GtkUpdateType policy);
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void gtk_dial_set_adjustment (GtkDial *dial,
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GtkAdjustment *adjustment);
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G_END_DECLS
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#endif /* __GTK_DIAL_H__ */
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