ColorInterface.php

<?php

namespace Drupal\color_field;


/**
 * Defines a common interface for color classes.
 */
interface ColorInterface {
    
    /**
     * Get the color as a string.
     *
     * @return string
     *   The color as a string.
     */
    public function toString();
    
    /**
     * Get the color as a hex instance.
     *
     * @return \Drupal\color_field\ColorHex
     *   The color as a hex instance.
     */
    public function toHex();
    
    /**
     * Get the color as a RGB instance.
     *
     * @return \Drupal\color_field\ColorRGB
     *   The color as a RGB instance.
     */
    public function toRgb();
    
    /**
     * Get the color as a HSL instance.
     *
     * @return \Drupal\color_field\ColorHSL
     *   The color as a HSL instance.
     */
    public function toHsl();
    // Public function toHSV();
    // public function toCMYK();
    // public function toCSS();

}