1/* HSV color selector for GTK+
2 *
3 * Copyright (C) 1999 The Free Software Foundation
4 *
5 * Authors: Simon Budig <Simon.Budig@unix-ag.org> (original code)
6 * Federico Mena-Quintero <federico@gimp.org> (cleanup for GTK+)
7 * Jonathan Blandford <jrb@redhat.com> (cleanup for GTK+)
8 *
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2 of the License, or (at your option) any later version.
13 *
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the
21 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
22 * Boston, MA 02111-1307, USA.
23 */
24
25/*
26 * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
27 * file for a list of people on the GTK+ Team. See the ChangeLog
28 * files for a list of changes. These files are distributed with
29 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
30 */
31
32#ifndef __GTK_HSV_H__
33#define __GTK_HSV_H__
34
35#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
36#error "Only <gtk/gtk.h> can be included directly."
37#endif
38
39#include <gtk/gtkwidget.h>
40
41G_BEGIN_DECLS
42
43#define GTK_TYPE_HSV (gtk_hsv_get_type ())
44#define GTK_HSV(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_HSV, GtkHSV))
45#define GTK_HSV_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_HSV, GtkHSVClass))
46#define GTK_IS_HSV(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_HSV))
47#define GTK_IS_HSV_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_HSV))
48#define GTK_HSV_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_HSV, GtkHSVClass))
49
50
51typedef struct _GtkHSV GtkHSV;
52typedef struct _GtkHSVClass GtkHSVClass;
53
54struct _GtkHSV
55{
56 GtkWidget parent_instance;
57
58 /* Private data */
59 gpointer GSEAL (priv);
60};
61
62struct _GtkHSVClass
63{
64 GtkWidgetClass parent_class;
65
66 /* Notification signals */
67 void (* changed) (GtkHSV *hsv);
68
69 /* Keybindings */
70 void (* move) (GtkHSV *hsv,
71 GtkDirectionType type);
72
73 /* Padding for future expansion */
74 void (*_gtk_reserved1) (void);
75 void (*_gtk_reserved2) (void);
76 void (*_gtk_reserved3) (void);
77 void (*_gtk_reserved4) (void);
78};
79
80
81GType gtk_hsv_get_type (void) G_GNUC_CONST;
82GtkWidget* gtk_hsv_new (void);
83void gtk_hsv_set_color (GtkHSV *hsv,
84 double h,
85 double s,
86 double v);
87void gtk_hsv_get_color (GtkHSV *hsv,
88 gdouble *h,
89 gdouble *s,
90 gdouble *v);
91void gtk_hsv_set_metrics (GtkHSV *hsv,
92 gint size,
93 gint ring_width);
94void gtk_hsv_get_metrics (GtkHSV *hsv,
95 gint *size,
96 gint *ring_width);
97gboolean gtk_hsv_is_adjusting (GtkHSV *hsv);
98
99/* Convert colors between the RGB and HSV color spaces */
100void gtk_hsv_to_rgb (gdouble h,
101 gdouble s,
102 gdouble v,
103 gdouble *r,
104 gdouble *g,
105 gdouble *b);
106void gtk_rgb_to_hsv (gdouble r,
107 gdouble g,
108 gdouble b,
109 gdouble *h,
110 gdouble *s,
111 gdouble *v);
112
113G_END_DECLS
114
115#endif /* __GTK_HSV_H__ */
116