mirror of
https://git.code.sf.net/p/seeddms/code
synced 2024-11-26 15:32:13 +00:00
127 lines
3.5 KiB
PHP
127 lines
3.5 KiB
PHP
<?php
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/**
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* Implementation of conversion service image class
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*
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* @category DMS
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* @package SeedDMS
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* @license GPL 2
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* @version @version@
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* @author Uwe Steinmann <uwe@steinmann.cx>
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* @copyright Copyright (C) 2021 Uwe Steinmann
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* @version Release: @package_version@
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*/
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require_once("inc/inc.ClassConversionServiceBase.php");
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/**
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* Implementation of conversion service image class
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*
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* @category DMS
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* @package SeedDMS
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* @author Uwe Steinmann <uwe@steinmann.cx>
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* @copyright Copyright (C) 2021 Uwe Steinmann
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* @version Release: @package_version@
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*/
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class SeedDMS_ConversionServiceImageToImage extends SeedDMS_ConversionServiceBase {
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/**
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* timeout
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*/
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public $timeout;
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public function __construct($from, $to) { /* {{{ */
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parent::__construct();
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$this->from = $from;
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$this->to = $to;
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$this->timeout = 5;
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} /* }}} */
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public function getInfo() { /* {{{ */
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return "Convert with imagick or gd php functions";
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} /* }}} */
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public function getAdditionalParams() { /* {{{ */
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return [
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['name'=>'width', 'type'=>'number', 'description'=>'Width of converted image']
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];
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} /* }}} */
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/**
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* Convert a pixel image into png and scale it
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*
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* This method uses imagick and if not available falls back to the gd library.
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*/
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public function convert($infile, $target = null, $params = array()) { /* {{{ */
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$start = microtime(true);
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if(extension_loaded('imagick')) {
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$imagick = new Imagick();
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try {
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if($imagick->readImage($infile)) {
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if(!empty($params['width']))
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$imagick->scaleImage(min((int) $params['width'], $imagick->getImageWidth()), 0);
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$end = microtime(true);
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if($this->logger) {
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$this->logger->log('Conversion from '.$this->from.' to '.$this->to.' with imagick service took '.($end-$start).' sec.', PEAR_LOG_INFO);
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}
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if($target) {
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return $imagick->writeImage($target);
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} else {
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return $imagick->getImageBlob();
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}
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} else {
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if($this->logger) {
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$this->logger->log('Conversion from '.$this->from.' to '.$this->to.' with image service failed: could not read input file.', PEAR_LOG_ERR);
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}
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$this->success = false;
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return false;
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}
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} catch (ImagickException $e) {
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if($this->logger) {
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$this->logger->log('Conversion from '.$this->from.' to '.$this->to.' with image service failed: '.$e->getMessage(), PEAR_LOG_ERR);
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}
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$this->success = false;
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return false;
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}
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} elseif(extension_loaded('gd')) {
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$im = null;
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switch($this->from) {
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case 'image/jpeg':
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case 'image/jpg':
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$im = @imagecreatefromjpeg($infile);
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break;
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case 'image/png':
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$im = @imagecreatefrompng($infile);
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break;
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case 'image/gif':
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$im = @imagecreatefromgif($infile);
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break;
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}
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if($im) {
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$width = imagesx($im);
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if(!empty($params['width']))
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$im = imagescale($im, min((int) $params['width'], $width));
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$end = microtime(true);
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if($this->logger) {
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$this->logger->log('Conversion from '.$this->from.' to '.$this->to.' with gd image service took '.($end-$start).' sec.', PEAR_LOG_INFO);
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}
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if($target) {
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return imagepng($im, $target);
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} else {
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ob_start();
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echo imagepng($im);
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$image = ob_get_clean();
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return $image;
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}
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} else {
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if($this->logger) {
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$this->logger->log('Conversion from '.$this->from.' to '.$this->to.' with image service failed: could not read input file.', PEAR_LOG_ERR);
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}
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$this->success = false;
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return false;
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}
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}
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return false;
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} /* }}} */
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}
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