image-class

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<?php
//class image handler
    class image
    {
    //only for image handlers
    var $supportim = array(1,2,3); //1 = gif / 2 = jpg / 3 = png
    //check for file realy exists
    //$file = file that schould be resized / what ever

    function _check_file(){
        if(file_exists($this->file)){
            //file does realy exists
            return true;
        }
else{
            return false;
        }
    }

    //recive image size and check if file is realy a image
    function _get_image_size(){
        if($this->dimension = getimagesize($this->file)){
            //we got a image;
            return true;
        }
else{
            return false;
        }
    }

    //check if we got a support for those images
    function _check_image_support(){
        if(empty($this->dimension)){
            //trigger a error;
            trigger_error('No file specified please run get_image_size first',E_WARNING_ERROR);    
        }
else{
          if(in_array($this->dimension[2],$this->supportim)){
            return true;
        }
else{
          return false;
        }
        }
    }
        function
read_file(){
      if($this->dimension[2] == 1){
         if(!$this->image_source = imagecreatefromgif($this->file)){    
                       trigger_error('Failed to open a stream',E_USER_WARNING);
           return false;
        }
else{
          return true;
        }  
    }
elseif($this->dimension[2] == 2){
         if(!$this->image_source = imagecreatefromjpeg($this->file)){
                       trigger_error('Failed to open a stream',E_USER_WARNING);
           return false;
        }
else{
          return true;
        }  
    }
elseif($this->dimension[2] == 3){
         if(!$this->image_source = imagecreatefrompng($this->file)){
            trigger_error('Failed to open a stream',E_USER_WARNING);
           return false;
        }
else{
          
          return true;
        }  
    }
else{
                  trigger_error('Filetype is not supported',E_USER_WARNING);
      return false;    
    }
    }

    //check image support
    //output:
    //1 = support for resize / flip
    //2 = Image but no support: But it is at least a image so avaible to upload.
    //3 = No image only upload avialble Please check correct files if you want
    //4 = file does not exits;

    function check_support(){
          if($this->_check_file()){
            if($this->_get_image_size()){
              if($this->_check_image_support()){
                //read file for gd stream;
                if($this->read_file()){
                  return 1;
                }
              }
else{
                return 2;
              }
            }
else{
            return 3;
        }
        }
else{
          return 4;
        }
    }
    
    //resize image
    function resize($width,$height){
      if($this->dimension[0] > $this->dimension[1]){
      $ratio = $width / $this->dimension[0];
          $this->newdimension[0] = $width;
        $this->newdimension[1] = round($this->dimension[1] * $ratio);
    }
else{
      $ratio = $height / $this->dimension[0];
          $this->newdimension[1] = $height;
        $this->newdimension[0] = round($this->dimension[0] * $ratio);
    }
      
    //create new image
    if(!$this->image = @imagecreatetruecolor($this->newdimension[0],$this->newdimension[1])){

      trigger_error('Failed open a new stream',E_USER_WARNING);return false;
    }
else{
      if(!@imagecopyresampled($this->image, $this->image_source, 0, 0, 0, 0, $this->newdimension[0], $this->newdimension[1], $this->dimension[0], $this->dimension[1])){
         trigger_error('Failed to resample',E_USER_WARNING);
        return false;
    }
else{
      return true;
      }
    }
    }

    //give extension
    function getextension($bestand)
    {

        return strtolower(end(explode('.',$bestand)));
    }
    function
getlastdir($bestand)
    {

        return strtolower(end(explode('/',$bestand)));

    }

    
    //create image
    function write_file($dir,$file){
        if(!file_exists($dir.$file)){
            if($this->dimension[2] == 1){
              if(@!imagegif($this->image,$dir.$file)){
                trigger_error('Failed to write to file',E_USER_WARNING);
                return false;
            }
else{
              return true;
            }
            }
elseif($this->dimension[2] == 2){
              if(@!imagejpeg($this->image,$dir.$file)){
                 trigger_error('Failed to write to file',E_USER_WARNING);
                return false;
            }
else{
              return true;
              }
            }
elseif($this->dimension[2] == 3){
              if(!@imagepng($this->image,$dir.$file)){
                 trigger_error('Failed to write to file',E_USER_WARNING);
                return false;
            }
else{
              return true;
            }
            }
else{
                return false;
            }
            }
else{
              return false;
            }
    }

    //upload file
    function move_uploaded_file($dir,$file){
      if(is_uploaded_file($this->file)){
        //file is geupload
        if(@move_uploaded_file($this->file,$dir.$file)){
              return true;
        }
else{
            return false;
            trigger_error('Non such file or not enough access',E_USER_WARNING);
        }
    }
else{
                trigger_error('File is not uploaded',E_USER_WARNING);
          return false;
    }
    }  
    
    function
read_dir_array($directory){
      if(@$dir = opendir($directory))
    {

    
    while (false !== ($file = readdir($dir)))
    {

        if ($file != "." && $file != "..")
        {

            if(is_file($directory.$file))
            {

                $extensie = $this->getextension($file);
                $extensies = array('png','jpg','jpeg','gif');
                
                if(in_array($extensie,$extensies))
                {

                    $bestanden[] = $file;
                }                        
            }

                    
            if(is_dir($directory.$file))
            {

                if($file != 'thumb')
                {

                    $directories[] = $file;
                }                
            }
        }
    }

    closedir($dir);
    $files = array();
    if(!empty($bestanden)){
    $files['images'] = $bestanden;
    }

    if(!empty($directories)){
    $files['dirs'] = $directories;
    }

    return $files;
    }
else{
    return false;
  }
}
    
}

/*$file = './schipbreukeling/images/msc.png';

$image = new image;
$image->file = $file;
if($image->check_support() == 1){
$image->move_uploaded_file('./','test.png');
}else{
  echo 'No support';
}*/

  

?>

 
 

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