<?php

function compteur($fileName)
{
	$file = fopen($fileName,"r+");
	if(!$file)
		return -1;

	$count = fgets($file,10);
	if($count=="")
	{
		$count = 0;
	}
	$count++;
	fseek($file,0);
	fputs($file,$count);
	fclose($file);
	return $count;
}

function image_string($text,$angle,$size)
{
	$font="/usr/share/fonts/truetype/dejavu/DejaVuSerif.ttf";
	$dims=imagettfbbox ( $size , $angle , $font , $text);
	//$stderr = fopen('php://stderr', 'w');
	$xmin=$xmax=$dims[0];
	$ymin=$ymax=$dims[1];
	for($i=0;$i<8;)
	{
		//fprintf($stderr,"%d (%f,%f)\n",$i,$dims[$i],$dims[$i+1]);
		if($xmin>$dims[$i]) $xmin=$dims[$i];
		if($xmax<$dims[$i]) $xmax=$dims[$i];
		$i++;
		if($ymin>$dims[$i]) $ymin=$dims[$i];
		if($ymax<$dims[$i]) $ymax=$dims[$i];
		$i++;
	}
	$width =$xmax-$xmin;
	$height=$ymax-$ymin;
	//fprintf($stderr,"%s : (%f,%f) (%f,%f) (%f,%f)\n",$text,$xmin,$ymin,$xmax,$ymax,$width,$height);
	$im = @imagecreate ($width,$height);
	if(!$im)
		return $im;
	
	$bg_color = imagecolorallocate($im, 255, 255, 255);
	$fg_color = imagecolorallocate($im,   0,   0,   0);
	//imagerectangle($im, 0, 0, $width, $height, $bg_color);
	imagettftext($im, $size, $angle, -$xmin, -$ymin, $fg_color, $font, $text);

	header("Content-type: image/jpeg");
	
	imagejpeg($im);
	imagedestroy($im);
}

function image_numbers($string)
{
	header("Content-type: image/jpeg");
	
	$x=0;
	$y=0;
	
	$imgs=Array();
	
	for($i=0;$i<mb_strlen($string);$i++)
	{
		$car=mb_substr($string,$i,1);
		$imgs[]=@imagecreatefromjpeg($car . ".jpg");
	}
	
	foreach($imgs as $img)
	{
		$x+=imagesx($img);
		if($y<imagesy($img))
			$y=imagesy($img);
	}

	$im = imagecreate ($x,$y);

	$x=0;
	foreach($imgs as $img)
	{
		imagecopy($im,$img,$x,0,0,0,imagesx($img),imagesy($img));
		$x+=imagesx($img);
		imagedestroy($img);
	}

	imagejpeg($im);
	imagedestroy($im);
}

function get_else($var,$value)
{
	return isset($var) ? $var : $value;
}

if(isset($_REQUEST["string"]))
{
	$string = $_REQUEST["string"];
	image_string($string,get_else($_REQUEST["angle"],0),get_else($_REQUEST["size"],12));
}
else
{
	if(isset($_REQUEST["counterName"]))
	{
		$_REQUEST["counterName"] = preg_replace("/[^a-z]/i","",$_REQUEST["counterName"]);
		$fileName=$_REQUEST["counterName"] . ".txt";
	}
	else
	{
		$fileName="compteur.txt";
	}


	$fileName = getcwd() . "/" . $fileName;
	$string = compteur($fileName);
	image_numbers($string);
}

?>