<?php

require_once "phpfspot_db.php";
require_once "phpfspot.class.php";

class PHPFSPOT_IMG {
   
   var $db;
   var $parent;

   public function __construct()
   {
      $this->parent = new PHPFSPOT;
      $this->db = $this->parent->db;

   } // __construct()

   public function __destruct()
   {

   } // __desctruct()

   public function show($idx, $width = "")
   {
      $details = $this->parent->get_photo_details($idx);

		foreach(Array($this->parent->cfg->thumb_width, $this->parent->cfg->photo_width) as $resolution)
		  $this->resize_image($this->parent->translate_path($details['directory_path'])  ."/". $details['name'], $resolution);

      if($width == "")
         $fullpath = $this->parent->translate_path($details['directory_path'])  ."/". $details['name'];
      else
         $fullpath = $this->parent->translate_path($details['directory_path'])  ."/thumbs/". $width ."_". $details['name'];


      $tmp = getimagesize($fullpath);
      $mime = $tmp['mime'];

      Header("Content-Type: ". $mime);
      Header("Content-Length: ". filesize($fullpath));
      Header("Content-Transfer-Encoding: binary\n");              
      $user_agent = strtolower ($_SERVER["HTTP_USER_AGENT"]);     
      Header("Content-Disposition: inline; filename=\"". $details['name'] ."\"");
      Header("Accept-Ranges: bytes");                             
      Header("Connection: close");                                
   
      $file = fopen($fullpath, "rb");
      fpassthru($file);
      @fclose($file);

   } // show()

   public function resize_image($image, $width)
   {
      // if thumbnail already exists, don't recreate it
      if(file_exists(dirname($image) ."/thumbs/". $width ."_". basename($image)))
         return;

      $src_img = @imagecreatefromjpeg($image);
        
      if($src_img)
      {
         /* grabs the height and width */
         $new_w = imagesx($src_img);
         $new_h = imagesy($src_img);
                
         // If requested width is more then the actual image width,
         // do not generate a thumbnail
         
         if($width >= $new_w) {
            imagedestroy($src_img);
            return;
         }
                
         /* calculates aspect ratio */
         $aspect_ratio = $new_h / $new_w;
                
         /* sets new size */
         $new_w = $width;
         $new_h = abs($new_w * $aspect_ratio);
                
         /* creates new image of that size */
         $dst_img = imagecreatetruecolor($new_w,$new_h);

         imagefill($dst_img, 0, 0, ImageColorAllocate($dst_img, 255, 255, 255));
                
         /* copies resized portion of original image into new image */
         imagecopyresampled($dst_img,$src_img,0,0,0,0,$new_w,$new_h,imagesx($src_img),imagesy($src_img));
                
         /* write down new generated file */
         
         if(!file_exists(dirname($image) ."/thumbs"))
            mkdir(dirname($image) ."/thumbs");

         $newfile = dirname($image) ."/thumbs/". $width ."_". basename($image);
         imagejpeg($dst_img, $newfile, 75);
                
         /* free your mind */
         imagedestroy($dst_img);
         imagedestroy($src_img);
      }

   } // resize_image()
}

if(isset($_GET['idx']) && is_numeric($_GET['idx'])) {

   if(isset($_GET['width']) && is_numeric($_GET['width'])) 
      $width = $_GET['width'];
   else
      $width = "";

   $img = new PHPFSPOT_IMG;
   $img->show($_GET['idx'], $width);
}

?>