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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* e-hsv-utils.h - utilites for manipulating colours in HSV space
* Copyright (C) 1995-2001 Seth Nickell, Peter Mattis, Spencer Kimball and Josh MacDonald
*
* Authors:
* Seth Nickell <seth@eazel.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License, version 2, as published by the Free Software Foundation.
*
* 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., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#ifndef _E_HSV_UTILS_H_
#define _E_HSV_UTILS_H_
#include <gdk/gdk.h>
G_BEGIN_DECLS
void e_hsv_to_rgb (gdouble h,
gdouble s,
gdouble v,
gdouble *r,
gdouble *g,
gdouble *b);
void e_rgb_to_hsv (gdouble r,
gdouble g,
gdouble b,
gdouble *h,
gdouble *s,
gdouble *v);
void e_hsv_tweak (GdkColor *colour,
gdouble delta_h,
gdouble delta_s,
gdouble delta_v);
G_END_DECLS
#endif /* _E_HSV_UTILS_H_ */
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