/* HSV color selector for GTK+

 *

 * Copyright (C) 1999 The Free Software Foundation

 *

 * Authors: Simon Budig <Simon.Budig@unix-ag.org> (original code)

 *          Federico Mena-Quintero <federico@gimp.org> (cleanup for GTK+)

 *          Jonathan Blandford <jrb@redhat.com> (cleanup for GTK+)

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Lesser 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

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public

 * License along with this library; if not, write to the

 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,

 * Boston, MA 02111-1307, USA.

 */

/*

 * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS

 * file for a list of people on the GTK+ Team.  See the ChangeLog

 * files for a list of changes.  These files are distributed with

 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.

 */

#ifndef __GTK_HSV_H__

#define __GTK_HSV_H__

#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)

#error "Only <gtk/gtk.h> can be included directly."

#endif

#include <gtk/gtkwidget.h>

G_BEGIN_DECLS

#define GTK_TYPE_HSV            (gtk_hsv_get_type ())

#define GTK_HSV(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_HSV, GtkHSV))

#define GTK_HSV_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_HSV, GtkHSVClass))

#define GTK_IS_HSV(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_HSV))

#define GTK_IS_HSV_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_HSV))

#define GTK_HSV_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_HSV, GtkHSVClass))

typedef struct _GtkHSV      GtkHSV;

typedef struct _GtkHSVClass GtkHSVClass;

struct _GtkHSV

{

  GtkWidget parent_instance;

  /* Private data */

  gpointer GSEAL (priv);

};

struct _GtkHSVClass

{

  GtkWidgetClass parent_class;

  /* Notification signals */

  void (* changed) (GtkHSV          *hsv);

  /* Keybindings */

  void (* move)    (GtkHSV          *hsv,

                    GtkDirectionType type);

  /* Padding for future expansion */

  void (*_gtk_reserved1) (void);

  void (*_gtk_reserved2) (void);

  void (*_gtk_reserved3) (void);

  void (*_gtk_reserved4) (void);

};

GType      gtk_hsv_get_type     (void) G_GNUC_CONST;

GtkWidget* gtk_hsv_new          (void);

void       gtk_hsv_set_color    (GtkHSV    *hsv,

				 double     h,

				 double     s,

				 double     v);

void       gtk_hsv_get_color    (GtkHSV    *hsv,

				 gdouble   *h,

				 gdouble   *s,

				 gdouble   *v);

void       gtk_hsv_set_metrics  (GtkHSV    *hsv,

				 gint       size,

				 gint       ring_width);

void       gtk_hsv_get_metrics  (GtkHSV    *hsv,

				 gint      *size,

				 gint      *ring_width);

gboolean   gtk_hsv_is_adjusting (GtkHSV    *hsv);

/* Convert colors between the RGB and HSV color spaces */

void       gtk_hsv_to_rgb       (gdouble    h,

				 gdouble    s,

				 gdouble    v,

				 gdouble   *r,

				 gdouble   *g,

				 gdouble   *b);

void       gtk_rgb_to_hsv       (gdouble    r,

				 gdouble    g,

				 gdouble    b,

				 gdouble   *h,

				 gdouble   *s,

				 gdouble   *v);

G_END_DECLS

#endif /* __GTK_HSV_H__ */