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<?php
/**
* @version $Id: helper.php 12694 2009-09-11 21:03:02Z ian $
* @package Joomla
* @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.
*/
// no direct access
defined( '_JEXEC' ) or die( 'Restricted access' );
class modRandomImageHelper
{
function getRandomImage(&$params, $images)
{
$width = $params->get( 'width' );
$height = $params->get( 'height' );
$i = count($images);
$random = mt_rand(0, $i - 1);
$image = $images[$random];
$size = getimagesize (JPATH_BASE.DS.$image->folder .DS. $image->name);
if ($width == '') {
$width = 100;
}
if ($size[0] < $width) {
$width = $size[0];
}
$coeff = $size[0]/$size[1];
if ($height == '') {
$height = (int) ($width/$coeff);
} else {
$newheight = min ($height, (int) ($width/$coeff));
if ($newheight < $height) {
$height = $newheight;
} else {
$width = $height * $coeff;
}
}
$image->width = $width;
$image->height = $height;
$image->folder = str_replace( '\\', '/', $image->folder );
return $image;
}
function getImages(&$params, $folder)
{
$type = $params->get( 'type', 'jpg' );
$files = array();
$images = array();
$dir = JPATH_BASE.DS.$folder;
// check if directory exists
if (is_dir($dir))
{
if ($handle = opendir($dir)) {
while (false !== ($file = readdir($handle))) {
if ($file != '.' && $file != '..' && $file != 'CVS' && $file != 'index.html' ) {
$files[] = $file;
}
}
}
closedir($handle);
$i = 0;
foreach ($files as $img)
{
if (!is_dir($dir .DS. $img))
{
if (preg_match("#$type#i", $img)) {
$images[$i]->name = $img;
$images[$i]->folder = $folder;
++$i;
}
}
}
}
return $images;
}
function getFolder(&$params)
{
$folder = $params->get( 'folder' );
$LiveSite = JURI::base();
// if folder includes livesite info, remove
if ( JString::strpos($folder, $LiveSite) === 0 ) {
$folder = str_replace( $LiveSite, '', $folder );
}
// if folder includes absolute path, remove
if ( JString::strpos($folder, JPATH_SITE) === 0 ) {
$folder= str_replace( JPATH_BASE, '', $folder );
}
$folder = str_replace('\\',DS,$folder);
$folder = str_replace('/',DS,$folder);
return $folder;
}
}