<?php/** * @version		$Id: media.php 10381 2008-06-01 03:35:53Z pasamio $ * @package		Joomla * @subpackage	Media * @copyright	Copyright (C) 2005 - 2008 Open Source Matters. All rights reserved. * @license		GNU/GPL, see LICENSE.php * Joomla! is free software. This version may have been modified pursuant to the * GNU General Public License, and as distributed it includes or is derivative * of works licensed under the GNU General Public License or other free or open * source software licenses. See COPYRIGHT.php for copyright notices and * details. *//** * @package		Joomla * @subpackage	Media */class MediaHelper{	/**	 * Checks if the file is an image	 * @param string The filename	 * @return boolean	 */	function isImage( $fileName )	{		static $imageTypes = 'xcf|odg|gif|jpg|png|bmp';		return preg_match("/$imageTypes/i",$fileName);	}	/**	 * Checks if the file is an image	 * @param string The filename	 * @return boolean	 */	function getTypeIcon( $fileName )	{		// Get file extension		return strtolower(substr($fileName, strrpos($fileName, '.') + 1));	}	/**	 * Checks if the file can be uploaded	 * @param array File information	 * @param string An error message to be returned	 * @return boolean	 */	function canUpload( $file, &$err )	{		$params = &JComponentHelper::getParams( 'com_media' );		jimport('joomla.filesystem.file');		$format = JFile::getExt($file['name']);		$allowable = explode( ',', $params->get( 'upload_extensions' ));		if (!in_array($format, $allowable))		{			$err = 'This file type is not supported';			return false;		}		$maxSize = (int) $params->get( 'upload_maxsize', 0 );		if ($maxSize > 0 && (int) $file['size'] > $maxSize)		{			$err = 'This file is too large to upload';			return false;		}		return true;	}	function parseSize($size)	{		if ($size < 1024) {			return $size . ' bytes';		}		else		{			if ($size >= 1024 && $size < 1024 * 1024) {				return sprintf('%01.2f', $size / 1024.0) . ' Kb';			} else {				return sprintf('%01.2f', $size / (1024.0 * 1024)) . ' Mb';			}		}	}	function imageResize($width, $height, $target)	{		//takes the larger size of the width and height and applies the		//formula accordingly...this is so this script will work		//dynamically with any size image		if ($width > $height) {			$percentage = ($target / $width);		} else {			$percentage = ($target / $height);		}		//gets the new value and applies the percentage, then rounds the value		$width = round($width * $percentage);		$height = round($height * $percentage);		//returns the new sizes in html image tag format...this is so you		//can plug this function inside an image tag and just get the		return "width=\"$width\" height=\"$height\"";	}	function countFiles( $dir )	{		$total_file = 0;		$total_dir = 0;		if (is_dir($dir)) {			$d = dir($dir);			while (false !== ($entry = $d->read())) {				if (substr($entry, 0, 1) != '.' && is_file($dir . DIRECTORY_SEPARATOR . $entry) && strpos($entry, '.html') === false && strpos($entry, '.php') === false) {					$total_file++;				}				if (substr($entry, 0, 1) != '.' && is_dir($dir . DIRECTORY_SEPARATOR . $entry)) {					$total_dir++;				}			}			$d->close();		}		return array ( $total_file, $total_dir );	}}?>