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File / Folder	Size	Action
.	-
AnsiColorMode.php	3.46KB	edt ren
BufferedOutput.php	0.818KB	edt ren
ConsoleOutput.php	4.762KB	edt ren
ConsoleOutputInterface.php	0.796KB	edt ren
ConsoleSectionOutput.php	8.279KB	edt ren
NullOutput.php	2.034KB	edt ren
Output.php	4.198KB	edt ren
OutputInterface.php	2.78KB	edt ren
StreamOutput.php	4.54KB	edt ren
TrimmedBufferOutput.php	1.548KB	edt ren

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\Console\Output;

use Symfony\Component\Console\Exception\InvalidArgumentException;

/**
 * @author Fabien Potencier <fabien@symfony.com>
 * @author Julien Boudry <julien@condorcet.vote>
 */
enum AnsiColorMode
{
    /*
     * Classical 4-bit Ansi colors, including 8 classical colors and 8 bright color. Output syntax is "ESC[${foreGroundColorcode};${backGroundColorcode}m"
     * Must be compatible with all terminals and it's the minimal version supported.
     */
    case Ansi4;

/*
     * 8-bit Ansi colors (240 different colors + 16 duplicate color codes, ensuring backward compatibility).
     * Output syntax is: "ESC[38;5;${foreGroundColorcode};48;5;${backGroundColorcode}m"
     * Should be compatible with most terminals.
     */
    case Ansi8;

/*
     * 24-bit Ansi colors (RGB).
     * Output syntax is: "ESC[38;2;${foreGroundColorcodeRed};${foreGroundColorcodeGreen};${foreGroundColorcodeBlue};48;2;${backGroundColorcodeRed};${backGroundColorcodeGreen};${backGroundColorcodeBlue}m"
     * May be compatible with many modern terminals.
     */
    case Ansi24;

/**
     * Converts an RGB hexadecimal color to the corresponding Ansi code.
     */
    public function convertFromHexToAnsiColorCode(string $hexColor): string
    {
        $hexColor = str_replace('#', '', $hexColor);

if (3 === \strlen($hexColor)) {
            $hexColor = $hexColor[0].$hexColor[0].$hexColor[1].$hexColor[1].$hexColor[2].$hexColor[2];
        }

if (6 !== \strlen($hexColor)) {
            throw new InvalidArgumentException(sprintf('Invalid "#%s" color.', $hexColor));
        }

$color = hexdec($hexColor);

$r = ($color >> 16) & 255;
        $g = ($color >> 8) & 255;
        $b = $color & 255;

return match ($this) {
            self::Ansi4 => (string) $this->convertFromRGB($r, $g, $b),
            self::Ansi8 => '8;5;'.((string) $this->convertFromRGB($r, $g, $b)),
            self::Ansi24 => sprintf('8;2;%d;%d;%d', $r, $g, $b)
        };
    }

private function convertFromRGB(int $r, int $g, int $b): int
    {
        return match ($this) {
            self::Ansi4 => $this->degradeHexColorToAnsi4($r, $g, $b),
            self::Ansi8 => $this->degradeHexColorToAnsi8($r, $g, $b),
            default => throw new InvalidArgumentException("RGB cannot be converted to {$this->name}.")
        };
    }

private function degradeHexColorToAnsi4(int $r, int $g, int $b): int
    {
        return round($b / 255) << 2 | (round($g / 255) << 1) | round($r / 255);
    }

/**
     * Inspired from https://github.com/ajalt/colormath/blob/e464e0da1b014976736cf97250063248fc77b8e7/colormath/src/commonMain/kotlin/com/github/ajalt/colormath/model/Ansi256.kt code (MIT license).
     */
    private function degradeHexColorToAnsi8(int $r, int $g, int $b): int
    {
        if ($r === $g && $g === $b) {
            if ($r < 8) {
                return 16;
            }

if ($r > 248) {
                return 231;
            }

return (int) round(($r - 8) / 247 * 24) + 232;
        } else {
            return 16 +
                    (36 * (int) round($r / 255 * 5)) +
                    (6 * (int) round($g / 255 * 5)) +
                    (int) round($b / 255 * 5);
        }
    }
}