ColorCMYK.php

<?php

namespace Drupal\color_field;


/**
 * ColorCMYK represents the CMYK color format.
 */
class ColorCMYK extends ColorBase {
    
    /**
     * The cyan.
     *
     * @var float
     */
    private $cyan;
    
    /**
     * The magenta.
     *
     * @var float
     */
    private $magenta;
    
    /**
     * The yellow.
     *
     * @var float
     */
    private $yellow;
    
    /**
     * The key (black).
     *
     * @var float
     */
    private $key;
    
    /**
     * Create a new CMYK color.
     *
     * @param float $cyan
     *   The cyan.
     * @param float $magenta
     *   The magenta.
     * @param float $yellow
     *   The yellow.
     * @param float $key
     *   The key (black).
     * @param float $opacity
     *   The opacity.
     */
    public function __construct($cyan, $magenta, $yellow, $key, $opacity) {
        $this->cyan = $cyan;
        $this->magenta = $magenta;
        $this->yellow = $yellow;
        $this->key = $key;
        $this->opacity = floatval($opacity);
    }
    
    /**
     * Get the amount of Cyan.
     *
     * @return int
     *   The amount of cyan.
     */
    public function getCyan() {
        return $this->cyan;
    }
    
    /**
     * Get the amount of Magenta.
     *
     * @return int
     *   The amount of magenta.
     */
    public function getMagenta() {
        return $this->magenta;
    }
    
    /**
     * Get the amount of Yellow.
     *
     * @return int
     *   The amount of yellow.
     */
    public function getYellow() {
        return $this->yellow;
    }
    
    /**
     * Get the key (black).
     *
     * @return int
     *   The amount of black.
     */
    public function getKey() {
        return $this->key;
    }
    
    /**
     * A string representation of this color in the current format.
     *
     * @param bool $opacity
     *   Whether or not to display the opacity.
     *
     * @return string
     *   The color in format: #RRGGBB.
     */
    public function toString($opacity = TRUE) {
        return $this->toHex()
            ->toString($opacity);
    }
    
    /**
     * {@inheritdoc}
     */
    public function toHex() {
        return $this->toRgb()
            ->toHex();
    }
    
    /**
     * {@inheritdoc}
     */
    public function toRgb() {
        return $this->toCmy()
            ->toRgb();
    }
    
    /**
     * {@inheritdoc}
     */
    public function toCmy() {
        $cyan = $this->cyan * (1 - $this->key) + $this->key;
        $magenta = $this->magenta * (1 - $this->key) + $this->key;
        $yellow = $this->yellow * (1 - $this->key) + $this->key;
        return new ColorCMY($cyan, $magenta, $yellow, $this->getOpacity());
    }
    
    /**
     * {@inheritdoc}
     */
    public function toHsl() {
        return $this->toRgb()
            ->toHsl();
    }

}