Your IP : 216.73.216.134
<?php
/*
# author Roland Soos
# copyright Copyright (C) Nextendweb.com. All Rights Reserved.
# @license - http://www.gnu.org/licenses/gpl-3.0.txt GNU/GPL
*/
defined('_JEXEC') or die('Restricted access'); ?><?php
nextendimport('nextend.cache.cache');
nextendimport('nextend.image.color');
class NextendCacheImage extends NextendCache {
var $_folder;
var $backgrouncolor;
function NextendCacheImage() {
$this->_subfolder = 'image' . DIRECTORY_SEPARATOR;
$this->backgrouncolor = array(0,0,0);
parent::NextendCache();
if($this->_cacheTime == 'static' || $this->_cacheTime == 0){
$this->_folder = $this->_path . 'static' . DIRECTORY_SEPARATOR;
$currentcachetime = 0;
}else{
$time = time();
$currentcachetime = $time - $time % $this->_cacheTime;
$this->_folder = $this->_path . $this->_prename . $currentcachetime . DIRECTORY_SEPARATOR;
}
$this->createCacheSubFolder($this->_folder, $currentcachetime);
}
function setBackground($hex){
$this->backgrouncolor = NextendColor::hex2rgb($hex);
}
function resizeImage($imageurl, $width, $height, $mode = 'cover', $resizeremote = false){
$originalimageurl = $imageurl;
if($width > 0 && $height > 0 && function_exists('exif_imagetype') && function_exists('imagecreatefrompng')){
$extra = array();
if(substr($imageurl, 0, 2) == '//'){
$imageurl = parse_url(NextendUri::getBaseuri(), PHP_URL_SCHEME).':'.$imageurl;
}
$imageurl = NextendUri::relativetoabsolute($imageurl);
$imagepath = NextendFilesystem::absoluteURLToPath($imageurl);
if($imagepath == $imageurl){
if(!$resizeremote) return $originalimageurl;
$imagepath = parse_url($imageurl, PHP_URL_PATH);
}else{
$extra[] = @filemtime($imagepath);
$imageurl = $imagepath;
}
$extension = strtolower(pathinfo($imagepath, PATHINFO_EXTENSION));
$filetype = '';
if($extension == 'png'){
$filetype = 'png';
}else if($extension == 'jpg' || $extension == 'jpeg'){
$filetype = 'jpg';
}
if($filetype != ''){
$hash = $this->createHashFromArray(array_merge(func_get_args(), $this->backgrouncolor, $extra));
$cachefile = $this->_folder.$hash.'.'.$filetype;
if(!NextendFilesystem::existsFile($cachefile)){
$imagetype = @exif_imagetype($imageurl);
if($imagetype){
if($imagetype == IMAGETYPE_PNG){
$filetype = 'png';
}else if($imagetype == IMAGETYPE_JPEG){
$filetype = 'jpg';
}else{
$filetype = '';
}
if($filetype){
$img = null;
$rotated = null;
if($filetype == 'png'){
$img = @imagecreatefrompng($imageurl);
}else if($filetype == 'jpg'){
$img = @imagecreatefromjpeg($imageurl);
if(function_exists("@exif_read_data")){
$exif = exif_read_data($imageurl);
if($exif && !empty($exif['Orientation'])){
switch ($exif['Orientation']) {
case 3:
$rotated = imagerotate($img, 180, 0);
break;
case 6:
$rotated = imagerotate($img, -90, 0);
break;
case 8:
$rotated = imagerotate($img, 90, 0);
break;
}
}
if($rotated){
imagedestroy($img);
$img = $rotated;
}
}
}
if($img){
$owidth = imagesx($img);
$oheight = imagesy($img);
if($rotated || $owidth != $width || $oheight != $height){
$image = imagecreatetruecolor($width, $height);
if($filetype == 'png'){
imagesavealpha($image, true);
imagealphablending($image, false);
$white = imagecolorallocatealpha($image, 255, 255, 255, 127);
imagefilledrectangle($image, 0, 0, $width, $height, $white);
}else if($filetype == 'jpg'){
$bg = imagecolorallocate($image, $this->backgrouncolor[0], $this->backgrouncolor[1], $this->backgrouncolor[2]);
imagefilledrectangle($image, 0, 0, $width, $height, $bg);
}
$dst_x = 0;
$dst_y = 0;
$src_x = 0;
$src_y = 0;
$dst_w = $width;
$dst_h = $height;
$src_w = $owidth;
$src_h = $oheight;
$horizontalRatio = $width/$owidth;
$verticalRatio = $height/$oheight;
if($mode == 'cover'){
if($horizontalRatio > $verticalRatio){
$new_h = $horizontalRatio*$oheight;
$dst_y = ($height-$new_h)/2;
$dst_h = $new_h;
}else{
$new_w = $verticalRatio*$owidth;
$dst_x = ($width-$new_w)/2;
$dst_w = $new_w;
}
}else if($mode == 'contain'){
if($horizontalRatio < $verticalRatio){
$new_h = $horizontalRatio*$oheight;
$dst_y = ($height-$new_h)/2;
$dst_h = $new_h;
}else{
$new_w = $verticalRatio*$owidth;
$dst_x = ($width-$new_w)/2;
$dst_w = $new_w;
}
}
imagecopyresampled($image, $img, $dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h);
imagedestroy($img);
if($filetype == 'png'){
imagepng($image, $cachefile);
}else if($filetype == 'jpg'){
imagejpeg($image, $cachefile, 100);
}
imagedestroy($image);
return NextendFilesystem::pathToAbsoluteURL($cachefile);
}else{
imagedestroy($img);
}
}
}
}
}else{
return NextendFilesystem::pathToAbsoluteURL($cachefile);
}
}
}
return $originalimageurl;
}
}
if ( ! function_exists( 'exif_imagetype' ) ) {
function exif_imagetype ( $filename ) {
if ( ( list($width, $height, $type, $attr) = getimagesize( $filename ) ) !== false ) {
return $type;
}
return false;
}
}