color_field.module

<?php


/**
 * @file
 * An color field with a custom color picker using the Field Types API.
 */
module_load_include('inc', 'color_field', 'color_field.field');

/**
 * Implements hook_library().
 */
function color_field_library() {
    if ($path = libraries_get_path('jquery-simple-color')) {
        $libraries['jquery-simple-color'] = array(
            'title' => 'recurser jquery simple color',
            'website' => 'https://github.com/recurser/jquery-simple-color',
            'version' => '1.2.1',
            'js' => array(
                $path . '/jquery.simple-color.min.js' => array(),
            ),
        );
    }
    if ($path = libraries_get_path('bgrins-spectrum')) {
        $libraries['bgrins-spectrum'] = array(
            'title' => 'color_field_spectrum_color_picker',
            'website' => 'http://bgrins.github.io/spectrum/',
            'version' => '1.6.0',
            'js' => array(
                $path . '/spectrum.js' => array(),
            ),
            'css' => array(
                $path . '/spectrum.css' => array(),
            ),
        );
    }
    if ($path = libraries_get_path('dematte-color-picker')) {
        $libraries['dematte-color-picker'] = array(
            'title' => 'color_field_dematte_color_picker',
            'website' => 'http://www.dematte.at/colorPicker/',
            'version' => '0.9',
            'js' => array(
                $path . '/colorPicker.js' => array(),
            ),
        );
    }
    if ($path = libraries_get_path('eyecon-color-picker')) {
        $libraries['eyecon-color-picker'] = array(
            'title' => 'color_field_eyecon_color_picker',
            'website' => 'http://www.eyecon.ro/colorpicker/',
            'version' => 'latest',
            'js' => array(
                $path . '/js/colorpicker.js' => array(),
            ),
        );
    }
    return $libraries;
}

/**
 * Implements hook_theme().
 */
function color_field_theme($existing, $type, $theme, $path) {
    return array(
        'color_swatch' => array(
            'variables' => array(
                'color' => '',
                'width' => 50,
                'height' => 50,
            ),
            'file' => 'color_field.theme.inc',
        ),
        'color_field_plain_text' => array(
            'render element' => 'element',
            'file' => 'color_field.theme.inc',
        ),
        'color_field_default_widget' => array(
            'render element' => 'element',
            'file' => 'color_field.theme.inc',
        ),
        'color_field_simple_widget' => array(
            'render element' => 'element',
            'file' => 'color_field.theme.inc',
        ),
        'color_field_spectrum_widget' => array(
            'render element' => 'element',
            'file' => 'color_field.theme.inc',
        ),
    );
}

/**
 * Helper: Convert RGB to HEX6.
 *
 * @param array $rgb
 *   The colors specified as an RGB triplet.
 *
 * @return string $hex
 *   The colors specified as an hexadecimal format (a hex triplet) (#134E1A).
 */
function color_field_rgb2hex($rgb = FALSE) {
    $hex = '';
    $hex .= str_pad(dechex($rgb[0]), 2, "0", STR_PAD_LEFT);
    $hex .= str_pad(dechex($rgb[1]), 2, "0", STR_PAD_LEFT);
    $hex .= str_pad(dechex($rgb[2]), 2, "0", STR_PAD_LEFT);
    return $hex;
}

/**
 * Helper: Convert HEX6 to RGB.
 *
 * @param string $hex
 *   The colors specified as an hexadecimal format (a hex triplet) (134E1A).
 *
 * @return string $rgba
 *   The colors specified as an RGB triplet.
 */
function color_field_hex2rgb($hex = FALSE) {
    $r = hexdec(substr($hex, 0, 2));
    $g = hexdec(substr($hex, 2, 2));
    $b = hexdec(substr($hex, -2));
    return compact('r', 'g', 'b');
}

/**
 * Helper: Convert HEX6 to RGBA.
 *
 * @param string $hex
 *   The colors specified as an hexadecimal format (a hex triplet) (134E1A).
 *
 * @param float $alpha
 *   The opacity value ranging for 0 to 1.
 *
 * @return string $rgba
 *   The colors specified as an RGB triplet plus the opacity.
 */
function color_field_hex2rgba($hex, $alpha = 1) {
    $r = hexdec(substr($hex, 0, 2));
    $g = hexdec(substr($hex, 2, 2));
    $b = hexdec(substr($hex, -2));
    $a = $alpha;
    return 'rgba(' . implode(compact('r', 'g', 'b', 'a'), ',') . ')';
}