<?php

/**

 * PHP QR Code porting for Codeigniter

 *

 * @package        	CodeIgniter

 * @subpackage    	Libraries

 * @category    	Libraries

 * @porting author	dwi.setiyadi@gmail.com

 * @original author	http://phpqrcode.sourceforge.net/

 * 

 * @version		1.0

 */

 

class Ciqrcode

{

	var $cacheable = true;

	var $cachedir = 'application/cache/';

	var $errorlog = 'application/logs/';

	var $quality = true;

	var $size = 1024;

	

	function __construct($config = array()) {

		// call original library

		include "qrcode/qrconst.php";

		include "qrcode/qrtools.php";

		include "qrcode/qrspec.php";

		include "qrcode/qrimage.php";

		include "qrcode/qrinput.php";

		include "qrcode/qrbitstream.php";

		include "qrcode/qrsplit.php";

		include "qrcode/qrrscode.php";

		include "qrcode/qrmask.php";

		include "qrcode/qrencode.php";

		

		$this->initialize($config);

	}

	

	public function initialize($config = array()) {

		$this->cacheable = (isset($config['cacheable'])) ? $config['cacheable'] : $this->cacheable;

		$this->cachedir = (isset($config['cachedir'])) ? $config['cachedir'] : FCPATH.$this->cachedir;

		$this->errorlog = (isset($config['errorlog'])) ? $config['errorlog'] : FCPATH.$this->errorlog;

		$this->quality = (isset($config['quality'])) ? $config['quality'] : $this->quality;

		$this->size = (isset($config['size'])) ? $config['size'] : $this->size;

		

		// use cache - more disk reads but less CPU power, masks and format templates are stored there

		if (!defined('QR_CACHEABLE')) define('QR_CACHEABLE', $this->cacheable);

		

		// used when QR_CACHEABLE === true

		if (!defined('QR_CACHE_DIR')) define('QR_CACHE_DIR', $this->cachedir);

		

		// default error logs dir

		if (!defined('QR_LOG_DIR')) define('QR_LOG_DIR', $this->errorlog);

		

		// if true, estimates best mask (spec. default, but extremally slow; set to false to significant performance boost but (propably) worst quality code

		if ($this->quality) {

			if (!defined('QR_FIND_BEST_MASK')) define('QR_FIND_BEST_MASK', true);

		} else {

			if (!defined('QR_FIND_BEST_MASK')) define('QR_FIND_BEST_MASK', false);

			if (!defined('QR_DEFAULT_MASK')) define('QR_DEFAULT_MASK', $this->quality);

		}

		

		// if false, checks all masks available, otherwise value tells count of masks need to be checked, mask id are got randomly

		if (!defined('QR_FIND_FROM_RANDOM')) define('QR_FIND_FROM_RANDOM', false);

		

		// maximum allowed png image width (in pixels), tune to make sure GD and PHP can handle such big images

		if (!defined('QR_PNG_MAXIMUM_SIZE')) define('QR_PNG_MAXIMUM_SIZE',  $this->size);

	}

	

	public function generate($params = array()) {

		if (isset($params['black']) 

			&& is_array($params['black']) 

			&& count($params['black']) == 3 

			&& array_filter($params['black'], 'is_int') === $params['black']) {

			QRimage::$black = $params['black']; 

		}

		

		if (isset($params['white']) 

			&& is_array($params['white']) 

			&& count($params['white']) == 3 

			&& array_filter($params['white'], 'is_int') === $params['white']) {

			QRimage::$white = $params['white']; 

		}

		

		$params['data'] = (isset($params['data'])) ? $params['data'] : 'QR Code Library';

		if (isset($params['savename'])) {

			$level = 'L';

			if (isset($params['level']) && in_array($params['level'], array('L','M','Q','H'))) $level = $params['level'];

			

			$size = 4;

			if (isset($params['size'])) $size = min(max((int)$params['size'], 1), 10);

			

			QRcode::png($params['data'], $params['savename'], $level, $size, 2);

			return $params['savename'];

		} else {

			$level = 'L';

			if (isset($params['level']) && in_array($params['level'], array('L','M','Q','H'))) $level = $params['level'];

			

			$size = 4;

			if (isset($params['size'])) $size = min(max((int)$params['size'], 1), 10);

			

			QRcode::png($params['data'], NULL, $level, $size, 2);

		}

	}

}



/* end of file */