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ControlPanel/modules/dsi/includes/SimpleImage.php

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+<?php
+ 
+/*
+* File: SimpleImage.php
+* Author: Simon Jarvis
+* Copyright: 2006 Simon Jarvis
+* Date: 08/11/06
+* Link: http://www.white-hat-web-design.co.uk/articles/php-image-resizing.php
+*
+* This program is free software; you can redistribute it and/or
+* modify it under the terms of the GNU General Public License
+* as published by the Free Software Foundation; either version 2
+* of the License, or (at your option) any later version.
+*
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+* GNU General Public License for more details:
+* http://www.gnu.org/licenses/gpl.html
+*
+*/
+ 
+class SimpleImage {
+ 
+   var $image;
+   var $image_type;
+ 
+   function load($filename) {
+      $image_info = getimagesize($filename);
+      $this->image_type = $image_info['mime'];
+      if( $this->image_type == "image/jpeg" ) {
+ 
+         $this->image = imagecreatefromjpeg($filename);
+      } elseif( $this->image_type == "image/gif" ) {
+ 
+         $this->image = imagecreatefromgif($filename);
+      } elseif( $this->image_type == "image/png" ) {
+ 
+         $this->image = imagecreatefrompng($filename);
+      }
+   }
+   function save($filename, $image_type=IMAGETYPE_PNG, $compression=75, $permissions=null) {
+ 
+      if( $image_type == IMAGETYPE_JPEG ) {
+         imagejpeg($this->image,$filename,$compression);
+      } elseif( $image_type == IMAGETYPE_GIF ) {
+ 
+         imagegif($this->image,$filename);
+      } elseif( $image_type == IMAGETYPE_PNG ) {
+ 
+         imagepng($this->image,$filename);
+      }
+      if( $permissions != null) {
+ 
+         chmod($filename,$permissions);
+      }
+   }
+   function output($image_type=IMAGETYPE_JPEG) {
+ 
+      if( $image_type == IMAGETYPE_JPEG ) {
+         imagejpeg($this->image);
+      } elseif( $image_type == IMAGETYPE_GIF ) {
+ 
+         imagegif($this->image);
+      } elseif( $image_type == IMAGETYPE_PNG ) {
+ 
+         imagepng($this->image);
+      }
+   }
+   function getWidth() {
+ 
+      return imagesx($this->image);
+   }
+   function getHeight() {
+ 
+      return imagesy($this->image);
+   }
+   function resizeToHeight($height) {
+ 
+      $ratio = $height / $this->getHeight();
+      $width = $this->getWidth() * $ratio;
+      $this->resize($width,$height);
+   }
+ 
+   function resizeToWidth($width) {
+      $ratio = $width / $this->getWidth();
+      $height = $this->getheight() * $ratio;
+      $this->resize($width,$height);
+   }
+ 
+   function scale($scale) {
+      $width = $this->getWidth() * $scale/100;
+      $height = $this->getheight() * $scale/100;
+      $this->resize($width,$height);
+   }
+ 
+   function resize($width,$height) {
+      $new_image = imagecreatetruecolor($width, $height);
+      imagecopyresampled($new_image, $this->image, 0, 0, 0, 0, $width, $height, $this->getWidth(), $this->getHeight());
+      $this->image = $new_image;
+   }      
+ 
+}
+?>