<?php
/**
  @author: Raj Trivedi (India), 2009-10-14
  @modify: Taylor Lopes (Brazil), 2012-04-06
*/
class barCodeGenrator {
private $file;
private $into;
private $digitArray = array(0=>"00110",1=>"10001",2=>"01001",3=>"11000",4=>"00101",5=>"10100",6=>"01100",7=>"00011",8=>"10010",9=>"01010");
	function __construct($value,$into=1, $filename = 'barcode.gif', $width_bar=300, $height_bar=65, $show_codebar=false) {

	  $lower = 1 ; $hight = 50;
    $this->into = $into;
          $this->file = $filename;
	  for($count1=9;$count1>=0;$count1--){
		for($count2=9;$count2>=0;$count2--){
		  $count = ($count1 * 10) + $count2 ;
		  $text = "" ;
		  for($i=1;$i<6;$i++){
			$text .=  substr($this->digitArray[$count1],($i-1),1) . substr($this->digitArray[$count2],($i-1),1);
		  }
		  $this->digitArray[$count] = $text;
	   }
	  }


      $height_bar_max = $height_bar;
      $width_bar_max  = $width_bar;

		  $img 		= imagecreate($width_bar_max,$height_bar_max);
      if ($show_codebar) {
        $height_bar -= 25;
      }

		  $cl_black = imagecolorallocate($img, 0, 0, 0);
		  $cl_white = imagecolorallocate($img, 255, 255, 255);

		  #imagefilledrectangle($img, 0, 0, $lower*95+1000, $hight+300, $cl_white);
      imagefilledrectangle($img, 0, 0, $width_bar_max, $height_bar_max, $cl_white);
		  imagefilledrectangle($img, 5,5,5,$height_bar,$cl_black);
		  imagefilledrectangle($img, 6,5,6,$height_bar,$cl_white);
		  imagefilledrectangle($img, 7,5,7,$height_bar,$cl_black);
		  imagefilledrectangle($img, 8,5,8,$height_bar,$cl_white);
	$thin = 1 ;
	if(substr_count(strtoupper($_SERVER['SERVER_SOFTWARE']),"WIN32")){
 		$wide = 3;
	} else {
			$wide = 2.72;
	   }
	$pos   = 9 ;
	$text = $value ;
	if((strlen($text) % 2) <> 0){
		$text = "0" . $text;
	}


	while (strlen($text) > 0) {
	  $i = round($this->JSK_left($text,2));
	  $text = $this->JSK_right($text,strlen($text)-2);

	  $f = $this->digitArray[$i];

	  for($i=1;$i<11;$i+=2){
		if (substr($f,($i-1),1) == "0") {
		  $f1 = $thin ;
		}else{
		  $f1 = $wide ;
		}
	  imagefilledrectangle($img, $pos,5,$pos-1+$f1,$height_bar,$cl_black)  ;
	  $pos = $pos + $f1 ;

	  if (substr($f,$i,1) == "0") {
		  $f2 = $thin ;
		}else{
		  $f2 = $wide ;
		}
	  imagefilledrectangle($img, $pos,5,$pos-1+$f2,$height_bar,$cl_white)  ;
	  $pos = $pos + $f2 ;
	  }
	}
	imagefilledrectangle($img, $pos,5,$pos-1+$wide,$height_bar,$cl_black);
	$pos=$pos+$wide;

	imagefilledrectangle($img, $pos,5,$pos-1+$thin,$height_bar,$cl_white);
	$pos=$pos+$thin;


	imagefilledrectangle($img, $pos,5,$pos-1+$thin,$height_bar,$cl_black);
	$pos=$pos+$thin;

  if ($show_codebar) {
    imagestring($img, 5, 0, $height_bar+5, " ".$value, imagecolorallocate($img, 0, 0, 0));
  }

	$this->put_img($img);
	}

	function JSK_left($input,$comp){
		return substr($input,0,$comp);
	}

	function JSK_right($input,$comp){
		return substr($input,strlen($input)-$comp,$comp);
	}
	function put_img($image,$file='test.gif'){
		if($this->into){
			imagegif($image,$this->file);
		} else {
					header("Content-type: image/gif");
					imagegif($image);
			   }
		imagedestroy($image);
	}
}

?>