<?php
/**
* This file is part of the Nette Framework (https://nette.org)
* Copyright (c) 2004 David Grudl (https://davidgrudl.com)
*/
declare(strict_types=1);
namespace Nette\Utils;
use Nette;
/**
* Represent RGB color (0..255) with opacity (0..1).
*/
class ImageColor
{
public static function rgb(int $red, int $green, int $blue, float $opacity = 1): self
{
return new self($red, $green, $blue, $opacity);
}
/**
* Accepts formats #RRGGBB, #RRGGBBAA, #RGB, #RGBA
*/
public static function hex(string $hex): self
{
$hex = ltrim($hex, '#');
$len = strlen($hex);
if ($len === 3 || $len === 4) {
return new self(
(int) hexdec($hex[0]) * 17,
(int) hexdec($hex[1]) * 17,
(int) hexdec($hex[2]) * 17,
(int) hexdec($hex[3] ?? 'F') * 17 / 255,
);
} elseif ($len === 6 || $len === 8) {
return new self(
(int) hexdec($hex[0] . $hex[1]),
(int) hexdec($hex[2] . $hex[3]),
(int) hexdec($hex[4] . $hex[5]),
(int) hexdec(($hex[6] ?? 'F') . ($hex[7] ?? 'F')) / 255,
);
} else {
throw new Nette\InvalidArgumentException('Invalid hex color format.');
}
}
private function __construct(
public int $red,
public int $green,
public int $blue,
public float $opacity = 1,
) {
$this->red = max(0, min(255, $red));
$this->green = max(0, min(255, $green));
$this->blue = max(0, min(255, $blue));
$this->opacity = max(0, min(1, $opacity));
}
public function toRGBA(): array
{
return [
max(0, min(255, $this->red)),
max(0, min(255, $this->green)),
max(0, min(255, $this->blue)),
max(0, min(127, (int) round(127 - $this->opacity * 127))),
];
}
}
Contact Section
We’d love to hear from you! Whether you have questions, feedback, or need support, our team is here to help. Reach out to us via email, phone, or visit our office. We’re committed to providing you with exceptional service and ensuring your experience with NFC Pay is seamless and satisfying. Let’s connect!