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<?php
/**
* @package      Foundry
* @copyright    Copyright (C) Stack Ideas Sdn Bhd. All rights reserved.
* @license      GNU/GPL, see LICENSE.php
* Foundry is free software. This version may have been modified pursuant
* to the GNU General Public License, and as distributed it includes or
* is derivative of works licensed under the GNU General Public License or
* other free or open source software licenses.
* See COPYRIGHT.php for copyright notices and details.
*/
defined('_JEXEC') or die('Unauthorized Access');

/*
 * PHP QR Code encoder
 *
 * Image output of code using GD2
 *
 * PHP QR Code is distributed under LGPL 3
 * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */
 
	define('QR_IMAGE', true);

	class QRimage {
	
		//----------------------------------------------------------------------
		public static function png($frame, $filename = false, $pixelPerPoint = 4, $outerFrame = 4,$saveandprint=FALSE) 
		{
			$image = self::image($frame, $pixelPerPoint, $outerFrame);
			
			if ($filename === false) {
				Header("Content-type: image/png");
				ImagePng($image);
			} else {
				if($saveandprint===TRUE){
					ImagePng($image, $filename);
					header("Content-type: image/png");
					ImagePng($image);
				}else{
					ImagePng($image, $filename);
				}
			}
			
			ImageDestroy($image);
		}
	
		//----------------------------------------------------------------------
		public static function jpg($frame, $filename = false, $pixelPerPoint = 8, $outerFrame = 4, $q = 85) 
		{
			$image = self::image($frame, $pixelPerPoint, $outerFrame);
			
			if ($filename === false) {
				Header("Content-type: image/jpeg");
				ImageJpeg($image, null, $q);
			} else {
				ImageJpeg($image, $filename, $q);            
			}
			
			ImageDestroy($image);
		}
	
		//----------------------------------------------------------------------
		private static function image($frame, $pixelPerPoint = 4, $outerFrame = 4) 
		{
			$h = count($frame);
			$w = strlen($frame[0]);
			
			$imgW = $w + 2*$outerFrame;
			$imgH = $h + 2*$outerFrame;
			
			$base_image =ImageCreate($imgW, $imgH);
			
			$col[0] = ImageColorAllocate($base_image,255,255,255);
			$col[1] = ImageColorAllocate($base_image,0,0,0);

			imagefill($base_image, 0, 0, $col[0]);

			for($y=0; $y<$h; $y++) {
				for($x=0; $x<$w; $x++) {
					if ($frame[$y][$x] == '1') {
						ImageSetPixel($base_image,$x+$outerFrame,$y+$outerFrame,$col[1]); 
					}
				}
			}
			
			$target_image =ImageCreate($imgW * $pixelPerPoint, $imgH * $pixelPerPoint);
			ImageCopyResized($target_image, $base_image, 0, 0, 0, 0, $imgW * $pixelPerPoint, $imgH * $pixelPerPoint, $imgW, $imgH);
			ImageDestroy($base_image);
			
			return $target_image;
		}
	}