1 /*
2  * Copyright (C) 2009, 2010 Hermann Meyer, James Warden, Andreas Degert
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation; either version 2 of the License, or
7  * (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
17  */
18 
19 #ifndef __GX_KNOB_H__
20 #define __GX_KNOB_H__
21 
22 
23 #include "GxRegler.h"
24 
25 G_BEGIN_DECLS
26 
27 #define GX_TYPE_KNOB          (gx_knob_get_type())
28 #define GX_KNOB(obj)          (G_TYPE_CHECK_INSTANCE_CAST ((obj), GX_TYPE_KNOB, GxKnob))
29 #define GX_KNOB_CLASS(klass)  (G_TYPE_CHECK_CLASS_CAST ((klass),  GX_TYPE_KNOB, GxKnobClass))
30 #define GX_IS_KNOB(obj)       (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GX_TYPE_KNOB))
31 #define GX_IS_KNOB_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE ((klass),  GX_TYPE_KNOB))
32 #define GX_KNOB_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GX_TYPE_KNOB, GxKnobClass))
33 
34 typedef struct _GxKnob GxKnob;
35 typedef struct _GxKnobClass GxKnobClass;
36 typedef struct _GxKnobPrivate GxKnobPrivate;
37 
38 struct _GxKnob {
39 	GxRegler parent;
40 	GxKnobPrivate *priv;
41 };
42 
43 struct _GxKnobClass {
44 	GxReglerClass parent_class;
45 	const gchar *stock_id;
46 };
47 
48 GType gx_knob_get_type(void);
49 
50 void _gx_knob_expose(GtkWidget *widget, GdkRectangle *image_rect, gdouble reglerstate,
51                      GdkPixbuf *regler_image);
52 gboolean _gx_knob_pointer_event(GtkWidget *widget, gdouble x, gdouble y, const gchar *icon,
53                                 gboolean drag, int state, int button);
54 void _gx_knob_draw_arc(GtkWidget *widget, GdkRectangle *rect, gdouble reglerstate,
55                        gboolean has_focus);
56 void _gx_knob_draw_indicator(GtkWidget *widget, GdkRectangle *image_rect, gdouble knobstate);
57 
58 G_END_DECLS
59 
60 #endif /* __GX_KNOB_H__ */
61