53 lines
1.5 KiB
C
53 lines
1.5 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
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/*
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* e-hsv-utils.h - utilites for manipulating colours in HSV space
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* Copyright (C) 1995-2001 Seth Nickell, Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* Authors:
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* Seth Nickell <seth@eazel.com>
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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, version 2, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful, but
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* 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 Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*/
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#ifndef _E_HSV_UTILS_H_
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#define _E_HSV_UTILS_H_
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#include <gdk/gdk.h>
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G_BEGIN_DECLS
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void e_hsv_to_rgb (gdouble h,
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gdouble s,
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gdouble v,
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gdouble *r,
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gdouble *g,
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gdouble *b);
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void e_rgb_to_hsv (gdouble r,
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gdouble g,
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gdouble b,
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gdouble *h,
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gdouble *s,
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gdouble *v);
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void e_hsv_tweak (GdkColor *colour,
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gdouble delta_h,
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gdouble delta_s,
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gdouble delta_v);
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G_END_DECLS
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#endif /* _E_HSV_UTILS_H_ */
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