Inserimento immagine

[seokey]

Questa e' la classe thumbnail

    class thumbnail

    {

        var $sourceFile; // We use this file to create the thumbnail

        var $originalFilename; // We use this to get the extension of the filename

        var $destinationDirectory; // The Directory in question

        var $destinationDirectoryFilename; // The destination filename

        

        var $createImageFunction = '';

        var $outputImageFunction = '';

        

        function generate($sourceFile = "", $originalFilename = "", $destinationDirectory = "", $destinationDirectoryFilename = "", $width = -1, $height = -1)

        {

      if (!empty($sourceFile))

        $this->sourceFile = $sourceFile;

      

      if (!empty($originalFilename))

        $this->originalFilename = $originalFilename;

       

      if (!empty($destinationDirectory))

        $this->destinationDirectory = $destinationDirectory;

       

      if (!empty($destinationDirectoryFilename))

        $this->destinationDirectoryFilename = $destinationDirectoryFilename;

      

      if (!empty($width))

        $this->width = $width;

      

      if (!empty($height))

        $this->height = $height;



      list(, $this->extension) = explode('.', $this->originalFilename);

            

            switch ($this->extension)

            {

                case 'gif' :

                    $createImageFunction = 'imagecreatefromgif';

                    $outputImageFunction = 'imagegif';

                  break;

                

                case 'png' :

                    $createImageFunction = 'imagecreatefrompng';

                    $outputImageFunction = 'imagepng';

                  break;

                

                case 'bmp' :

                    $createImageFunction = 'imagecreatefromwbmp';

                    $outputImageFunction = 'imagewbmp';

                  break;

                

                case 'jpg': case 'jpeg':

                    $createImageFunction = 'imagecreatefromjpeg';

                    $outputImageFunction = 'imagejpeg';

                  break;

                

                default : 

                    exit("Sorry: The format '{$this->extension}' is unsuported");

                  break;

            }

            

            $this->img  = $createImageFunction($this->sourceFile);

            

            list($this->org_width, $this->org_height) = getimagesize($this->sourceFile);

            

            if ($this->height == -1)

            {

                $this->height = round($this->org_height * $this->width / $this->org_width);

            }

            

            if ($this->width == -1)

            {

                $this->width = round($this->org_width * $this->height / $this->org_height);

            }     

            

            $this->xoffset = 0;

            $this->yoffset = 0;

            

            $this->img_new = imagecreatetruecolor($this->width, $this->height);    

            

            if ($this->img_new)

            {

                imagecopyresampled($this->img_new, $this->img, 0, 0, $this->xoffset, $this->yoffset, $this->width, $this->height, $this->org_width, $this->org_height);

                

                list($this->newFilename) = explode('.', $this->destinationDirectoryFilename);

                

                $this->fullDestination = ($this->destinationDirectory.'/'.$this->newFilename.'.'.$this->extension);

                

                $outputImageFunction($this->img_new, $this->fullDestination);

            }

            else

            {

                $this->failed = true;

            }

            

            if ($this->failed == false)

            {

                return $this->fullDestination;

            }

        }

    }

?>