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 NextendImage extends NextendCache {
var $_folder;
var $_im = null;
function NextendImage() {
$this->_subfolder = 'image' . DIRECTORY_SEPARATOR;
parent::NextendCache();
$this->_filetype = 'png';
if($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, $currentcachetime);
}
function loadLess(&$less) {
$this->_less = & $less->_less;
$this->_less->registerFunction("transparentcolor", array(
$this,
"lessTransparentcolor"
));
$this->_less->registerFunction("colorizeimage", array(
$this,
"lessColorizeimage"
));
}
function transparentcolor($color) {
$cachefile = $this->_folder . 'transparentcolor' . $color . '.' . $this->_filetype;
if (!NextendFilesystem::existsFile($cachefile)) {
$rgba = NextendColor::hex2rgba($color);
$this->createIm(1, 1);
$fillcolor = imagecolorallocatealpha($this->_im, $rgba[0], $rgba[1], $rgba[2], 127 - $rgba[3]);
imagefilledrectangle($this->_im, 0, 0, 1, 1, $fillcolor);
$this->saveIm($cachefile);
}
return NextendFilesystem::pathToAbsoluteURL($cachefile);
}
function lessTransparentcolor($arg) {
if (isset($arg[2]) && isset($arg[2][1]) && isset($arg[2][1][1])) {
return $this->url($this->transparentcolor($arg[2][1][1]));
}
return '';
}
function colorizeImage($img, $targetColor, $baseColor) {
$cachefile = $this->_folder . 'colorize' . md5($img) . $targetColor . $baseColor . '.' . $this->_filetype;
if (!NextendFilesystem::existsFile($cachefile)) {
$targetHexArr = NextendColor::hex82hex($targetColor);
$targetColor = $targetHexArr[0];
$alpha = hexdec($targetHexArr[1]);
$c1 = NextendColor::hex2hsl($baseColor);
$c2 = NextendColor::hex2hsl($targetColor);
$im = imagecreatefrompng($img);
$width = imagesx($im);
$height = imagesy($im);
$this->createIm($width, $height);
$rgb = NextendColor::rgb2array($targetColor);
for ($x = 0;$x < $width;$x++) {
for ($y = 0;$y < $height;$y++) {
$rgba = ImageColorAt($im, $x, $y);
$rgb = array(
(($rgba >> 16) & 0xFF) ,
(($rgba >> 8) & 0xFF) ,
$rgba & 0xFF
);
$hsl = NextendColor::rgb2hsl($rgb);
$a[0] = $hsl[0] + ($c2[0] - $c1[0]);
$a[1] = $hsl[1] * ($c2[1] / $c1[1]);
if ($a[1] > 1) $a[1] = 1;
$a[2] = exp(log($hsl[2]) * log($c2[2]) / log($c1[2]));
if ($a[2] > 1) $a[2] = 1;
$rgb = NextendColor::hsl2rgb($a);
$A = 0xFF - (($rgba >> 24) * 2) & 0xFF;
$A = (int)($A * ($alpha / 0xFF));
if ($A > 0xFF) $A = 0xFF;
$A = (int)((0xFF - $A) / 2);
imagesetpixel($this->_im, $x, $y, imagecolorallocatealpha($this->_im, $rgb[0], $rgb[1], $rgb[2], $A));
}
}
$this->saveIm($cachefile);
imagedestroy($im);
}
return NextendFilesystem::pathToAbsoluteURL($cachefile);
}
function lessColorizeimage(&$arg) {
if (isset($arg[2])) {
$arg = & $arg[2];
if (isset($arg[0])) {
$colorize = $this->getFromEscapedArgs($arg[0]);
}
if (isset($arg[1])) {
$image = $this->getFromEscapedArgs($arg[1]);
if($image == '-1') return 'none';
}
if (isset($arg[2])) {
$color = $this->getFromEscapedArgs($arg[2]);
}
$url = '';
if ($colorize == 0) {
$url = NextendFilesystem::pathToAbsoluteURL(NextendFilesystem::getBasePath() . $image);
}else{
if( realpath($image) !== false){
$image = realpath($image);
}else{
$image = NextendFilesystem::getBasePath() . $image;
}
$url = $this->colorizeImage($image, $color, '548722');
}
return $this->url($url);
}
}
function resizeImage($image, $w, $h){
$w = intval($w);
$h = intval($h);
$cachefile = $this->_folder . 'resize' . md5($image) . $w .'_'. $h . '.' . $this->_filetype;
if (!NextendFilesystem::existsFile($cachefile)) {
if($image && $w >= 1 && $h >= 1){
if(strpos($image, 'http') === 0){ //url
}else{
if(!NextendFilesystem::existsFile($image)){
$image = NextendFilesystem::getBasePath().$image;
}
}
if(is_readable($image)){
$orig = null;
switch(exif_imagetype($image)){
case IMAGETYPE_JPEG:
$orig = imagecreatefromjpeg($image);
break;
case IMAGETYPE_PNG:
$orig = imagecreatefrompng($image);
break;
}
if($orig){
$this->createIm($w, $h);
$ow = imagesx($orig);
$oh = imagesy($orig);
$ratioX = $ow /$w;
$ratioY = $oh /$h;
if($ratioX > $ratioY){
$ow = $ratioY*$w;
}else{
$oh = $ratioX*$h;
}
imagecopyresampled($this->_im, $orig, 0, 0, 0, 0, $w, $h, $ow, $oh);
$this->saveIm($cachefile);
imagedestroy($orig);
return NextendFilesystem::pathToAbsoluteURL($cachefile);
}
}else{
return $image;
}
}else{
return $image;
}
}
return NextendFilesystem::pathToAbsoluteURL($cachefile);
}
function createIm($x, $y) {
$this->_im = imagecreatetruecolor($x, $y);
imagealphablending($this->_im, false);
imagesavealpha($this->_im, true);
$transparent = imagecolorallocatealpha($this->_im, 255, 255, 255, 127);
imagefilledrectangle($this->_im, 0, 0, $x, $y, $transparent);
}
function saveIm($file) {
ob_start();
imagepng($this->_im);
NextendFilesystem::createFile($file, ob_get_clean());
imagedestroy($this->_im);
$this->_im = null;
}
function url($url) {
return 'url(' . $url . ')';
}
function getFromEscapedArgs(&$arg) {
if (isset($arg) && isset($arg[2]) && isset($arg[2][1]) && isset($arg[2][1][2]) && isset($arg[2][1][2][0])) {
return $arg[2][1][2][0];
}
return false;
}
}