// This is Free Software under GNU Affero General Public License v >= 3.0
// without warranty, see README.md and license for details.
//
// SPDX-License-Identifier: AGPL-3.0-or-later
// License-Filename: LICENSES/AGPL-3.0.txt
//
// Copyright (C) 2018 by via donau
//   – Österreichische Wasserstraßen-Gesellschaft mbH
// Software engineering by Intevation GmbH
//
// Author(s):
//  * Sascha Wilde <sascha.wilde@intevation.de>
//  * Sascha Teichmann <sascha.teichmann@intevation.de>

package models

type (
	Colour struct {
		R int     `json:"r"`
		G int     `json:"g"`
		B int     `json:"b"`
		A float32 `json:"a"`
	}
)

func isByteRange(i int) bool {
	return i >= 0 && i < 256
}

func (c Colour) IsValid() bool {
	return isByteRange(c.R) &&
		isByteRange(c.G) &&
		isByteRange(c.B) &&
		c.A >= 0 && c.A <= 1
}