97 lines
2.0 KiB
C
97 lines
2.0 KiB
C
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/* LIBPIKA - The PIKA Library
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* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
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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 Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but 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 Lesser General Public
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* License along with this library. If not, see
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* <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <glib-object.h>
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#include "pikacolortypes.h"
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#include "pikahsv.h"
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/**
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* SECTION: pikahsv
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* @title: PikaHSV
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* @short_description: Definitions and Functions relating to HSV colors.
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*
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* Definitions and Functions relating to HSV colors.
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**/
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/*
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* PIKA_TYPE_HSV
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*/
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static PikaHSV * pika_hsv_copy (const PikaHSV *hsv);
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G_DEFINE_BOXED_TYPE (PikaHSV, pika_hsv, pika_hsv_copy, g_free)
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static PikaHSV *
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pika_hsv_copy (const PikaHSV *hsv)
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{
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return g_memdup2 (hsv, sizeof (PikaHSV));
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}
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/* HSV functions */
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void
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pika_hsv_set (PikaHSV *hsv,
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gdouble h,
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gdouble s,
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gdouble v)
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{
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g_return_if_fail (hsv != NULL);
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hsv->h = h;
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hsv->s = s;
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hsv->v = v;
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}
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void
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pika_hsv_clamp (PikaHSV *hsv)
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{
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g_return_if_fail (hsv != NULL);
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hsv->h -= (gint) hsv->h;
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if (hsv->h < 0)
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hsv->h += 1.0;
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hsv->s = CLAMP (hsv->s, 0.0, 1.0);
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hsv->v = CLAMP (hsv->v, 0.0, 1.0);
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hsv->a = CLAMP (hsv->a, 0.0, 1.0);
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}
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void
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pika_hsva_set (PikaHSV *hsva,
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gdouble h,
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gdouble s,
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gdouble v,
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gdouble a)
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{
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g_return_if_fail (hsva != NULL);
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hsva->h = h;
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hsva->s = s;
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hsva->v = v;
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hsva->a = a;
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}
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