<?php
/**
* @version $Id: helper.php 21518 2011-06-10 21:38:12Z chdemko $
* @package Joomla.Site
* @subpackage mod_random_image
* @copyright Copyright (C) 2005 - 2011 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
// no direct access
defined('_JEXEC') or die;
class modRandomImageHelper
{
static 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 . '/' . $image->folder . '/' . $image->name);
if ($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 $image;
}
static function getImages(&$params, $folder)
{
$type = $params->get('type', 'jpg');
$files = array();
$images = array();
$dir = JPATH_BASE . '/' . $folder;
// check if directory exists
if (is_dir($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 . '/' . $img))
{
if (preg_match('/'.$type.'/', $img)) {
$images[$i] = new stdClass;
$images[$i]->name = $img;
$images[$i]->folder = $folder;
$i++;
}
}
}
}
return $images;
}
static function getFolder(&$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;
}
}