<?php
/**
 * Magento
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Open Software License (OSL 3.0)
 * that is bundled with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://opensource.org/licenses/osl-3.0.php
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@magentocommerce.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade Magento to newer
 * versions in the future. If you wish to customize Magento for your
 * needs please refer to http://www.magentocommerce.com for more information.
 *
 * @category    Mage
 * @package     Mage_Adminhtml
 * @copyright   Copyright (c) 2010 Magento Inc. (http://www.magentocommerce.com)
 * @license     http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */


/**
 * Image config field renderer
 *
 * @category   Mage
 * @package    Mage_Adminhtml
 * @author      Magento Core Team <core@magentocommerce.com>
 */
class Mage_Adminhtml_Block_System_Config_Form_Field_Image extends Varien_Data_Form_Element_Image
{

    /**
     * Get image preview url
     *
     * @return string
     */
    protected function _getUrl()
    {
        $url = parent::_getUrl();

        $config = $this->getFieldConfig();
        /* @var $config Varien_Simplexml_Element */
        if (!empty($config->base_url)) {
            $el = $config->descend('base_url');
            $urlType = empty($el['type']) ? 'link' : (string)$el['type'];
            $url = Mage::getBaseUrl($urlType) . (string)$config->base_url . '/' . $url;
        }

        return $url;
    }

}