123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157 |
- <?php
- class elFinderPluginAutoResize {
- private $opts = array();
- public function __construct($opts) {
- $defaults = array(
- 'enable' => true, // For control by volume driver
- 'maxWidth' => 1024, // Path to Water mark image
- 'maxHeight' => 1024, // Margin right pixel
- 'quality' => 95, // JPEG image save quality
- 'targetType' => IMG_GIF|IMG_JPG|IMG_PNG|IMG_WBMP // Target image formats ( bit-field )
- );
- $this->opts = array_merge($defaults, $opts);
- }
- public function onUpLoadPreSave(&$path, &$name, $src, $elfinder, $volume) {
- $opts = $this->opts;
- $volOpts = $volume->getOptionsPlugin('AutoResize');
- if (is_array($volOpts)) {
- $opts = array_merge($this->opts, $volOpts);
- }
-
- if (! $opts['enable']) {
- return false;
- }
-
- $srcImgInfo = @getimagesize($src);
- if ($srcImgInfo === false) {
- return false;
- }
-
- // check target image type
- $imgTypes = array(
- IMAGETYPE_GIF => IMG_GIF,
- IMAGETYPE_JPEG => IMG_JPEG,
- IMAGETYPE_PNG => IMG_PNG,
- IMAGETYPE_WBMP => IMG_WBMP,
- );
- if (! ($opts['targetType'] & $imgTypes[$srcImgInfo[2]])) {
- return false;
- }
-
- if ($srcImgInfo[0] > $opts['maxWidth'] || $srcImgInfo[1] > $opts['maxHeight']) {
- return $this->resize($src, $srcImgInfo, $opts['maxWidth'], $opts['maxHeight'], $opts['quality']);
- }
-
- return false;
- }
-
- private function resize($src, $srcImgInfo, $maxWidth, $maxHeight, $quality) {
- $zoom = min(($maxWidth/$srcImgInfo[0]),($maxHeight/$srcImgInfo[1]));
- $width = round($srcImgInfo[0] * $zoom);
- $height = round($srcImgInfo[1] * $zoom);
-
- if (class_exists('Imagick')) {
- return $this->resize_imagick($src, $width, $height, $quality);
- } else {
- return $this->resize_gd($src, $width, $height, $quality, $srcImgInfo);
- }
- }
-
- private function resize_gd($src, $width, $height, $quality, $srcImgInfo) {
- switch ($srcImgInfo['mime']) {
- case 'image/gif':
- if (@imagetypes() & IMG_GIF) {
- $oSrcImg = @imagecreatefromgif($src);
- } else {
- $ermsg = 'GIF images are not supported';
- }
- break;
- case 'image/jpeg':
- if (@imagetypes() & IMG_JPG) {
- $oSrcImg = @imagecreatefromjpeg($src) ;
- } else {
- $ermsg = 'JPEG images are not supported';
- }
- break;
- case 'image/png':
- if (@imagetypes() & IMG_PNG) {
- $oSrcImg = @imagecreatefrompng($src) ;
- } else {
- $ermsg = 'PNG images are not supported';
- }
- break;
- case 'image/wbmp':
- if (@imagetypes() & IMG_WBMP) {
- $oSrcImg = @imagecreatefromwbmp($src);
- } else {
- $ermsg = 'WBMP images are not supported';
- }
- break;
- default:
- $oSrcImg = false;
- $ermsg = $srcImgInfo['mime'].' images are not supported';
- break;
- }
-
- if ($oSrcImg && false != ($tmp = imagecreatetruecolor($width, $height))) {
-
- if (!imagecopyresampled($tmp, $oSrcImg, 0, 0, 0, 0, $width, $height, $srcImgInfo[0], $srcImgInfo[1])) {
- return false;
- }
-
- switch ($srcImgInfo['mime']) {
- case 'image/gif':
- imagegif($tmp, $src);
- break;
- case 'image/jpeg':
- imagejpeg($tmp, $src, $quality);
- break;
- case 'image/png':
- if (function_exists('imagesavealpha') && function_exists('imagealphablending')) {
- imagealphablending($tmp, false);
- imagesavealpha($tmp, true);
- }
- imagepng($tmp, $src);
- break;
- case 'image/wbmp':
- imagewbmp($tmp, $src);
- break;
- }
-
- imagedestroy($oSrcImg);
- imagedestroy($tmp);
-
- return true;
-
- }
- return false;
- }
-
- private function resize_imagick($src, $width, $height, $quality) {
- try {
- $img = new imagick($src);
-
- if (strtoupper($img->getImageFormat()) === 'JPEG') {
- $img->setImageCompression(imagick::COMPRESSION_JPEG);
- $img->setCompressionQuality($quality);
- }
-
- $img->resizeImage($width, $height, Imagick::FILTER_LANCZOS, true);
-
- $result = $img->writeImage($src);
-
- $img->clear();
- $img->destroy();
-
- return $result ? true : false;
- } catch (Exception $e) {
- return false;
- }
- }
- }
|