<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @link http://github.com/zendframework/zf2 for the canonical source repository
* @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
namespace Zend\Console\Color;
class Xterm256
{
/**
* Foreground constant
*/
const FOREGROUND = 38;
/**
* Background constant
*/
const BACKGROUND = 48;
/**
* @var string $color X11-formatted color value
*/
public static $color;
/**
* Populate color property with X11-formatted equivalent
*
* @param mixed $color
*/
protected function __construct($color = null)
{
static::$color = $color !== null ? sprintf('%%s;5;%s', $color) : null;
}
/**
* Calcluate the X11 color value of a hexadecimal color
*
* @param string $hexColor
* @return string
*/
public static function calculate($hexColor)
{
$hex = str_split($hexColor, 2);
if (count($hex) !== 3 || !preg_match('#[0-9A-F]{6}#i', $hexColor)) {
// Invalid/unknown color string
return new static();
}
$ahex = array_map(function ($hex) {
$val = round(((hexdec($hex) - 55)/40), 0);
return $val > 0 ? (int) $val : 0;
}, $hex);
$dhex = array_map('hexdec', $hex);
if (array_fill(0, 3, $dhex[0]) === $dhex && (int) substr($dhex[0], -1) === 8) {
$x11 = 232 + (int) floor($dhex[0]/10);
return new static($x11);
}
$x11 = $ahex[0] * 36 + $ahex[1] * 6 + $ahex[2] + 16;
return new static($x11);
}
}
# |
Change |
User |
Description |
Committed |
|
#1
|
18334 |
Liz Lam |
initial add of jambox |
|
|