1<?php
2
3/**
4 * DokuWiki Barcodes Plugin
5 * Copyright (C) 2023 Matthias Lohr <mail@mlohr.com>
6 *
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
19 */
20
21namespace DokuWiki\Barcodes;
22
23use ParseError;
24
25class Color {
26
27    private $red;
28    private $green;
29    private $blue;
30
31    public function __construct($color)
32    {
33        if (preg_match('/^#?([0-9a-f]{6})/i', $color, $matches)) {
34            $this->red = hexdec(substr($matches[1], 0, 2));
35            $this->green = hexdec(substr($matches[1], 2, 2));
36            $this->blue = hexdec(substr($matches[1], 4, 2));
37        }
38        else {
39            throw new ParseError('Could not parse "' . $color . '" to a color');
40        }
41    }
42
43    public static function parse($str) {
44        return new Color($str);
45    }
46
47    public static function str2hex($str) {
48        return (new Color($str))->getHex();
49    }
50
51    public function getHex() {
52        return sprintf("%02X%02X%02X", $this->red, $this->green, $this->blue);
53    }
54
55    public function __toString() {
56        return $this->getHex();
57    }
58}
59