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<?php

/*************************

  Coppermine Photo Gallery

  ************************

  Copyright (c) 2003-2005 Coppermine Dev Team

  v1.1 originaly written by Gregory DEMAR

  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.

  ********************************************

  Coppermine version: 1.3.3

  $Source: /cvsroot/coppermine/stable/include/imageObjectGD.class.php,v $

  $Revision: 1.5 $

  $Author: gaugau $

  $Date: 2005/04/19 03:17:11 $

**********************************************/

class imageObject{

         // image resource

         var $imgRes;

         // px

         var $height=0;

         var $width=0;

         // for img height/width tags

         var $string;

         // output report or error message

         var $message;

         // file + dir

         var $directory;

         var $filename;

         // output quality, 0 - 100

         var $quality;

         // truecolor available, boolean

         var $truecolor;

         //constructor

         function imageObject($directory,$filename,$previous=null)

        {

        $this->directory = $directory;

        $this->filename = $filename;

        $this->previous = $previous;

        $this->imgRes = $previous->imgRes;

        if (file_exists($directory.$filename)){

                        $this->filesize = round(filesize($directory.$filename)/1000);

                        if($this->filesize>0){

                                $size = @GetImageSize($directory.$filename);

                                if ($size && !$this->imgRes) {

                                        $this->imgRes = $this->getimgRes($directory.$filename,$size[2]);

                                }

                                if (function_exists("imagecreatetruecolor")){

                                        $this->truecolor = true;

                                }

                                $this->width = $size[0];

                                $this->height = $size[1];

                                $this->string = $size[3];

                                }

                        }// if

        }// constructor

         // private methods

         function getimgRes($name,&$type)

         {

           switch ($type){

              case 1:

              $im = imagecreatefromgif($name);

              break;

              case 2:

              $im = imagecreatefromjpeg($name);

              break;

              case 3:

              $im = imagecreatefrompng($name);

              break;

                      }

           return $im;

         }

         function createUnique(&$imgnew)

         {

           srand((double)microtime()*100000);

           $unique_str = "temp_".md5(rand(0,999999)).".jpg";

           @imagejpeg($imgnew,$this->directory.$unique_str,$this->quality);

           @imagedestroy($this->imgRes);

           //Don't clutter with old images

           @unlink($this->directory.$this->filename);

           //Create a new ImageObject

           return new imageObject($this->directory,$unique_str,$imgnew);

         }

         function createImage($new_w,$new_h)

         {

           if (function_exists("imagecreatetruecolor")){

             $retval = @imagecreatetruecolor($new_w,$new_h);

           }

           if (!$retval) $retval = imagecreate($new_w,$new_h);

           return $retval;

         }

         function cropImage(&$clipval)

         {

             $cliparray = split(",",$clipval);

             $clip_top = $cliparray[0];

             $clip_right = $cliparray[1];

             $clip_bottom = $cliparray[2];

             $clip_left = $cliparray[3];

             $new_w = $clip_right - $clip_left;

             $new_h = $clip_bottom - $clip_top;

             $dst_img = $this->createImage($new_w,$new_h);

             $result = @imagecopyresampled($dst_img, $this->imgRes, 0,0,$clip_left, $clip_top,$new_w, $new_h, $new_w, $new_h);

             if (!$result) $result = @imagecopyresized($dst_img, $this->imgRes, 0,0,$clip_left, $clip_top,$new_w, $new_h, $new_w, $new_h);

             return $this->createUnique($dst_img);

         }

         function rotateImage(&$angle){

          if ($angle == 180){

              $dst_img = @imagerotate($this->imgRes, $angle, 0);

          }else{

                  $width = imagesx($this->imgRes);

                  $height = imagesy($this->imgRes);

                  if ($width > $height){

                      $size = $width;

                      }else{

                      $size = $height;

                  }

                  $dst_img = $this->createImage($size, $size);

                  imagecopy($dst_img, $this->imgRes, 0, 0, 0, 0, $width, $height);

                  $dst_img = @imagerotate($dst_img, $angle, 0);

                  $this->imgRes = $dst_img;

                  $dst_img = $this->createImage($height, $width);

                  if ((($angle == 90) && ($width > $height)) || (($angle == 270) && ($width < $height))){

                          imagecopy($dst_img, $this->imgRes, 0, 0, 0, 0, $size, $size);

                  }

                  if ((($angle == 270) && ($width > $height)) || (($angle == 90) && ($width < $height))){

                          imagecopy($dst_img, $this->imgRes, 0, 0, $size - $height, $size - $width, $size, $size);

                  }

          }

           return $this->createUnique($dst_img);

         }

         function resizeImage($new_w=0,$new_h=0){

             $dst_img = $this->createImage($new_w,$new_h);

             $result = @imagecopyresampled($dst_img, $this->imgRes, 0, 0, 0, 0, $new_w, $new_h, $this->width,$this->height);

             if (!$result) $result = @imagecopyresized($dst_img, $this->imgRes, 0, 0, 0, 0, $new_w, $new_h, $this->width,$this->height);

             return $this->createUnique($dst_img);

         }

         function saveImage(){

         }

   }

 ?>