Switching to using phpqrcode for QR code generation, as Google is due to shut down it's QR code generation API.
This commit is contained in:
Tom Slominski
784
public/phpqrcode/qrencode.php
Executable file
784
public/phpqrcode/qrencode.php
Executable file
@@ -0,0 +1,784 @@
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<?php
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/*
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* PHP QR Code encoder
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*
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* Main encoder classes.
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*
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* Based on libqrencode C library distributed under LGPL 2.1
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* Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
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*
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* PHP QR Code is distributed under LGPL 3
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* Copyright (C) 2010-2013 Dominik Dzienia <deltalab at poczta dot fm>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/** @defgroup CoreGroup Standard API Core
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Core encoder classes */
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/** @addtogroup CoreGroup */
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/** @{ */
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//##########################################################################
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/**
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Data block with raw data and it's Error Correction Code data.
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*/
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class QRrsblock {
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public $dataLength;
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public $data = array();
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public $eccLength;
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public $ecc = array();
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/** Data block Constructor
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@param Integer $dl length of data stream
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@param Array $data data stream
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@param Integer $el ECC length
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@param Array $el ECC stream (modified, by reference)
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@param QRrsItem $rs RS encoding item
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*/
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public function __construct($dl, $data, $el, &$ecc, QRrsItem $rs)
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{
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$rs->encode_rs_char($data, $ecc);
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$this->dataLength = $dl;
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$this->data = $data;
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$this->eccLength = $el;
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$this->ecc = $ecc;
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}
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};
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//##########################################################################
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/** Raw Code holder.
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Contains encoded code data before there are spatialy distributed into frame and masked.
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Here goes dividing data into blocks and calculating ECC stream. */
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class QRrawcode {
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public $version; ///< __Integer__ code Version
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public $datacode = array(); ///< __Array__ data stream
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public $ecccode = array(); ///< __Array__ ECC Stream
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public $blocks; ///< __Integer__ RS Blocks count
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public $rsblocks = array(); ///< __Array__ of RSblock, ECC code blocks
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public $count; ///< __Integer__ position of currently processed ECC code
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public $dataLength; ///< __Integer__ data stream length
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public $eccLength; ///< __Integer__ ECC stream length
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public $b1; ///< __Integer__ width of code in pixels, used as a modulo base for column overflow
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//----------------------------------------------------------------------
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/** Raw Code holder Constructor
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@param QRinput $input input stream
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*/
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public function __construct(QRinput $input)
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{
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$spec = array(0,0,0,0,0);
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$this->datacode = $input->getByteStream();
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if(is_null($this->datacode)) {
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throw new Exception('null imput string');
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}
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QRspec::getEccSpec($input->getVersion(), $input->getErrorCorrectionLevel(), $spec);
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$this->version = $input->getVersion();
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$this->b1 = QRspec::rsBlockNum1($spec);
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$this->dataLength = QRspec::rsDataLength($spec);
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$this->eccLength = QRspec::rsEccLength($spec);
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$this->ecccode = array_fill(0, $this->eccLength, 0);
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$this->blocks = QRspec::rsBlockNum($spec);
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$ret = $this->init($spec);
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if($ret < 0) {
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throw new Exception('block alloc error');
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return null;
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}
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$this->count = 0;
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}
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//----------------------------------------------------------------------
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/** Initializes Raw Code according to current code speciffication
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@param Array $spec code speciffigation, as provided by QRspec
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*/
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public function init(array $spec)
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{
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$dl = QRspec::rsDataCodes1($spec);
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$el = QRspec::rsEccCodes1($spec);
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$rs = QRrs::init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
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$blockNo = 0;
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$dataPos = 0;
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$eccPos = 0;
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for($i=0; $i<QRspec::rsBlockNum1($spec); $i++) {
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$ecc = array_slice($this->ecccode,$eccPos);
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$this->rsblocks[$blockNo] = new QRrsblock($dl, array_slice($this->datacode, $dataPos), $el, $ecc, $rs);
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$this->ecccode = array_merge(array_slice($this->ecccode,0, $eccPos), $ecc);
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$dataPos += $dl;
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$eccPos += $el;
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$blockNo++;
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}
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if(QRspec::rsBlockNum2($spec) == 0)
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return 0;
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$dl = QRspec::rsDataCodes2($spec);
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$el = QRspec::rsEccCodes2($spec);
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$rs = QRrs::init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
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if($rs == NULL) return -1;
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for($i=0; $i<QRspec::rsBlockNum2($spec); $i++) {
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$ecc = array_slice($this->ecccode,$eccPos);
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$this->rsblocks[$blockNo] = new QRrsblock($dl, array_slice($this->datacode, $dataPos), $el, $ecc, $rs);
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$this->ecccode = array_merge(array_slice($this->ecccode,0, $eccPos), $ecc);
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$dataPos += $dl;
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$eccPos += $el;
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$blockNo++;
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}
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return 0;
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}
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//----------------------------------------------------------------------
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/** Gets ECC code
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@return Integer ECC byte for current object position
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*/
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public function getCode()
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{
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$ret;
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if($this->count < $this->dataLength) {
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$row = $this->count % $this->blocks;
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$col = $this->count / $this->blocks;
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if($col >= $this->rsblocks[0]->dataLength) {
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$row += $this->b1;
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}
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$ret = $this->rsblocks[$row]->data[$col];
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} else if($this->count < $this->dataLength + $this->eccLength) {
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$row = ($this->count - $this->dataLength) % $this->blocks;
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$col = ($this->count - $this->dataLength) / $this->blocks;
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$ret = $this->rsblocks[$row]->ecc[$col];
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} else {
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return 0;
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}
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$this->count++;
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return $ret;
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}
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}
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//##########################################################################
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/**
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__Main class to create QR-code__.
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QR Code symbol is a 2D barcode that can be scanned by handy terminals such as a mobile phone with CCD.
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The capacity of QR Code is up to 7000 digits or 4000 characters, and has high robustness.
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This class supports QR Code model 2, described in JIS (Japanese Industrial Standards) X0510:2004 or ISO/IEC 18004.
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Currently the following features are not supported: ECI and FNC1 mode, Micro QR Code, QR Code model 1, Structured mode.
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@abstract Class for generating QR-code images, SVG and HTML5 Canvas
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@author Dominik Dzienia
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@copyright 2010-2013 Dominik Dzienia and others
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@link http://phpqrcode.sourceforge.net
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@license http://www.gnu.org/copyleft/lesser.html LGPL
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*/
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class QRcode {
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public $version; ///< __Integer__ QR code version. Size of QRcode is defined as version. Version is from 1 to 40. Version 1 is 21*21 matrix. And 4 modules increases whenever 1 version increases. So version 40 is 177*177 matrix.
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public $width; ///< __Integer__ Width of code table. Because code is square shaped - same as height.
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public $data; ///< __Array__ Ready, masked code data.
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/** Canvas JS include flag.
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If canvas js support library was included, we remember it static in QRcode.
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(because file should be included only once)
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*/
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public static $jscanvasincluded = false;
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//----------------------------------------------------------------------
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/**
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Encode mask
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Main function responsible for creating code.
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We get empty frame, then fill it with data from input, then select best mask and apply it.
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If $mask argument is greater than -1 we assume that user want's that specific mask number (ranging form 0-7) to be used.
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Otherwise (when $mask is -1) mask is detected using algorithm depending of global configuration,
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@param QRinput $input data object
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@param Integer $mask sugested masking mode
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@return QRcode $this (current instance)
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*/
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public function encodeMask(QRinput $input, $mask)
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{
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if($input->getVersion() < 0 || $input->getVersion() > QRSPEC_VERSION_MAX) {
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throw new Exception('wrong version');
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}
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if($input->getErrorCorrectionLevel() > QR_ECLEVEL_H) {
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throw new Exception('wrong level');
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}
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$raw = new QRrawcode($input);
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QRtools::markTime('after_raw');
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$version = $raw->version;
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$width = QRspec::getWidth($version);
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$frame = QRspec::newFrame($version);
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$filler = new QRframeFiller($width, $frame);
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if(is_null($filler)) {
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return NULL;
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}
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// inteleaved data and ecc codes
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for($i=0; $i<$raw->dataLength + $raw->eccLength; $i++) {
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$code = $raw->getCode();
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$bit = 0x80;
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for($j=0; $j<8; $j++) {
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$addr = $filler->next();
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$filler->setFrameAt($addr, 0x02 | (($bit & $code) != 0));
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$bit = $bit >> 1;
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}
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}
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QRtools::markTime('after_filler');
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unset($raw);
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// remainder bits
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$j = QRspec::getRemainder($version);
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for($i=0; $i<$j; $i++) {
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$addr = $filler->next();
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$filler->setFrameAt($addr, 0x02);
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}
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$frame = $filler->frame;
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unset($filler);
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// masking
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$maskObj = new QRmask();
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if($mask < 0) {
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if (QR_FIND_BEST_MASK) {
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$masked = $maskObj->mask($width, $frame, $input->getErrorCorrectionLevel());
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} else {
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$masked = $maskObj->makeMask($width, $frame, (intval(QR_DEFAULT_MASK) % 8), $input->getErrorCorrectionLevel());
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}
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} else {
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$masked = $maskObj->makeMask($width, $frame, $mask, $input->getErrorCorrectionLevel());
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}
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if($masked == NULL) {
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return NULL;
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}
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QRtools::markTime('after_mask');
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$this->version = $version;
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$this->width = $width;
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$this->data = $masked;
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return $this;
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}
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//----------------------------------------------------------------------
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/**
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Encode input with mask detection.
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Shorthand for encodeMask, without specifing particular, static mask number.
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@param QRinput $input data object to be encoded
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@return
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*/
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public function encodeInput(QRinput $input)
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{
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return $this->encodeMask($input, -1);
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}
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//----------------------------------------------------------------------
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/**
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Encode string, forcing 8-bit encoding
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@param String $string input string
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@param Integer $version code version (size of code area)
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@param Integer $level ECC level (see: Global Constants -> Levels of Error Correction)
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@return QRcode $this (current instance)
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*/
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public function encodeString8bit($string, $version, $level)
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{
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if($string == NULL) {
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throw new Exception('empty string!');
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return NULL;
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}
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$input = new QRinput($version, $level);
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if($input == NULL) return NULL;
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$ret = $input->append(QR_MODE_8, strlen($string), str_split($string));
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if($ret < 0) {
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unset($input);
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return NULL;
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}
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return $this->encodeInput($input);
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}
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//----------------------------------------------------------------------
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/**
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Encode string, using optimal encodings.
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Encode string dynamically adjusting encoding for subsections of string to
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minimize resulting code size. For complex string it will split string into
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subsections: Numerical, Alphanumerical or 8-bit.
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@param String $string input string
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@param Integer $version code version (size of code area)
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@param String $level ECC level (see: Global Constants -> Levels of Error Correction)
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@param Integer $hint __QR_MODE_8__ or __QR_MODE_KANJI__, Because Kanji encoding
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is kind of 8 bit encoding we need to hint encoder to use Kanji mode explicite.
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(otherwise it may try to encode it as plain 8 bit stream)
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@param Boolean $casesensitive hint if given string is case-sensitive, because
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if not - encoder may use optimal QR_MODE_AN instead of QR_MODE_8
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@return QRcode $this (current instance)
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*/
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public function encodeString($string, $version, $level, $hint, $casesensitive)
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{
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if($hint != QR_MODE_8 && $hint != QR_MODE_KANJI) {
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throw new Exception('bad hint');
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return NULL;
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}
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$input = new QRinput($version, $level);
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if($input == NULL) return NULL;
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$ret = QRsplit::splitStringToQRinput($string, $input, $hint, $casesensitive);
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if($ret < 0) {
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return NULL;
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}
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return $this->encodeInput($input);
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}
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//######################################################################
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/**
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Creates PNG image containing QR-Code.
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Simple helper function to create QR-Code Png image with one static call.
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@param String $text text string to encode
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@param String $outfile (optional) output file name, if __false__ outputs to browser with required headers
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@param Integer $level (optional) error correction level __QR_ECLEVEL_L__, __QR_ECLEVEL_M__, __QR_ECLEVEL_Q__ or __QR_ECLEVEL_H__
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@param Integer $size (optional) pixel size, multiplier for each 'virtual' pixel
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@param Integer $margin (optional) code margin (silent zone) in 'virtual' pixels
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@param Boolean $saveandprint (optional) if __true__ code is outputed to browser and saved to file, otherwise only saved to file. It is effective only if $outfile is specified.
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*/
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public static function png($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4, $saveandprint=false)
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{
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$enc = QRencode::factory($level, $size, $margin);
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return $enc->encodePNG($text, $outfile, $saveandprint=false);
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}
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//----------------------------------------------------------------------
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/**
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Creates text (1's & 0's) containing QR-Code.
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Simple helper function to create QR-Code text with one static call.
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@param String $text text string to encode
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@param String $outfile (optional) output file name, when __false__ file is not saved
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@param Integer $level (optional) error correction level __QR_ECLEVEL_L__, __QR_ECLEVEL_M__, __QR_ECLEVEL_Q__ or __QR_ECLEVEL_H__
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@param Integer $size (optional) pixel size, multiplier for each 'virtual' pixel
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@param Integer $margin (optional) code margin (silent zone) in 'virtual' pixels
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@return Array containing line of code with 1 and 0 for every code line
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*/
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public static function text($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4)
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{
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$enc = QRencode::factory($level, $size, $margin);
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return $enc->encode($text, $outfile);
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}
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//----------------------------------------------------------------------
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/**
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Creates Raw Array containing QR-Code.
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Simple helper function to create QR-Code array with one static call.
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@param String $text text string to encode
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@param Boolean $outfile (optional) not used, shuold be __false__
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@param Integer $level (optional) error correction level __QR_ECLEVEL_L__, __QR_ECLEVEL_M__, __QR_ECLEVEL_Q__ or __QR_ECLEVEL_H__
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@param Integer $size (optional) pixel size, multiplier for each 'virtual' pixel
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@param Integer $margin (optional) code margin (silent zone) in 'virtual' pixels
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@return Array containing Raw QR code
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*/
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public static function raw($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4)
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{
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$enc = QRencode::factory($level, $size, $margin);
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return $enc->encodeRAW($text, $outfile);
|
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}
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//----------------------------------------------------------------------
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/**
|
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Creates Html+JS code to draw QR-Code with HTML5 Canvas.
|
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Simple helper function to create QR-Code array with one static call.
|
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@param String $text text string to encode
|
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@param String $elemId (optional) target Canvas tag id attribute, if __false__ Canvas tag with auto id will be created
|
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@param Integer $level (optional) error correction level __QR_ECLEVEL_L__, __QR_ECLEVEL_M__, __QR_ECLEVEL_Q__ or __QR_ECLEVEL_H__
|
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@param Integer $width (optional) CANVAS element width (sam as height)
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@param Integer $size (optional) pixel size, multiplier for each 'virtual' pixel
|
||||
@param Integer $margin (optional) code margin (silent zone) in 'virtual' pixels
|
||||
@param Boolean $autoInclude (optional) if __true__, required qrcanvas.js lib will be included (only once)
|
||||
@return String containing JavaScript creating the code, Canvas element (when $elemId is __false__) and script tag with required lib (when $autoInclude is __true__ and not yet included)
|
||||
*/
|
||||
|
||||
public static function canvas($text, $elemId = false, $level = QR_ECLEVEL_L, $width = false, $size = false, $margin = 4, $autoInclude = false)
|
||||
{
|
||||
$html = '';
|
||||
$extra = '';
|
||||
|
||||
if ($autoInclude) {
|
||||
if (!self::$jscanvasincluded) {
|
||||
self::$jscanvasincluded = true;
|
||||
echo '<script type="text/javascript" src="qrcanvas.js"></script>';
|
||||
}
|
||||
}
|
||||
|
||||
$enc = QRencode::factory($level, 1, 0);
|
||||
$tab_src = $enc->encode($text, false);
|
||||
$area = new QRcanvasOutput($tab_src);
|
||||
$area->detectGroups();
|
||||
$area->detectAreas();
|
||||
|
||||
if ($elemId === false) {
|
||||
$elemId = 'qrcode-'.md5(mt_rand(1000,1000000).'.'.mt_rand(1000,1000000).'.'.mt_rand(1000,1000000).'.'.mt_rand(1000,1000000));
|
||||
|
||||
if ($width == false) {
|
||||
if (($size !== false) && ($size > 0)) {
|
||||
$width = ($area->getWidth()+(2*$margin)) * $size;
|
||||
} else {
|
||||
$width = ($area->getWidth()+(2*$margin)) * 4;
|
||||
}
|
||||
}
|
||||
|
||||
$html .= '<canvas id="'.$elemId.'" width="'.$width.'" height="'.$width.'">Your browser does not support CANVAS tag! Please upgrade to modern version of FireFox, Opera, Chrome or Safari/Webkit based browser</canvas>';
|
||||
}
|
||||
|
||||
if ($width !== false) {
|
||||
$extra .= ', '.$width.', '.$width;
|
||||
}
|
||||
|
||||
if ($margin !== false) {
|
||||
$extra .= ', '.$margin.', '.$margin;
|
||||
}
|
||||
|
||||
$html .= '<script>if(eval("typeof "+\'QRdrawCode\'+"==\'function\'")){QRdrawCode(QRdecompactOps(\''.$area->getCanvasOps().'\')'."\n".', \''.$elemId.'\', '.$area->getWidth().' '.$extra.');}else{alert(\'Please include qrcanvas.js!\');}</script>';
|
||||
|
||||
return $html;
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------
|
||||
/**
|
||||
Creates SVG with QR-Code.
|
||||
Simple helper function to create QR-Code SVG with one static call.
|
||||
@param String $text text string to encode
|
||||
@param Boolean $elemId (optional) target SVG tag id attribute, if __false__ SVG tag with auto id will be created
|
||||
@param String $outfile (optional) output file name, when __false__ file is not saved
|
||||
@param Integer $level (optional) error correction level __QR_ECLEVEL_L__, __QR_ECLEVEL_M__, __QR_ECLEVEL_Q__ or __QR_ECLEVEL_H__
|
||||
@param Integer $width (optional) SVG element width (sam as height)
|
||||
@param Integer $size (optional) pixel size, multiplier for each 'virtual' pixel
|
||||
@param Integer $margin (optional) code margin (silent zone) in 'virtual' pixels
|
||||
@param Boolean $compress (optional) if __true__, compressed SVGZ (instead plaintext SVG) is saved to file
|
||||
@return String containing SVG tag
|
||||
*/
|
||||
|
||||
public static function svg($text, $elemId = false, $outFile = false, $level = QR_ECLEVEL_L, $width = false, $size = false, $margin = 4, $compress = false)
|
||||
{
|
||||
$enc = QRencode::factory($level, 1, 0);
|
||||
$tab_src = $enc->encode($text, false);
|
||||
$area = new QRsvgOutput($tab_src);
|
||||
$area->detectGroups();
|
||||
$area->detectAreas();
|
||||
|
||||
if ($elemId === false) {
|
||||
$elemId = 'qrcode-'.md5(mt_rand(1000,1000000).'.'.mt_rand(1000,1000000).'.'.mt_rand(1000,1000000).'.'.mt_rand(1000,1000000));
|
||||
|
||||
if ($width == false) {
|
||||
if (($size !== false) && ($size > 0)) {
|
||||
$width = ($area->getWidth()+(2*$margin)) * $size;
|
||||
} else {
|
||||
$width = ($area->getWidth()+(2*$margin)) * 4;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
$svg = '<svg xmlns="http://www.w3.org/2000/svg"
|
||||
xmlns:xlink="http://www.w3.org/1999/xlink"
|
||||
version="1.1"
|
||||
baseProfile="full"
|
||||
viewBox="'.(-$margin).' '.(-$margin).' '.($area->getWidth()+($margin*2)).' '.($area->getWidth()+($margin*2)).'"
|
||||
width="'.$width.'"
|
||||
height="'.$width.'"
|
||||
id="'.$elemId.'">'."\n";
|
||||
|
||||
$svg .= $area->getRawSvg().'</svg>';
|
||||
|
||||
if ($outFile !== false) {
|
||||
$xmlPreamble = '<?xml version="1.0" encoding="UTF-8" standalone="no"?>'."\n";
|
||||
$svgContent = $xmlPreamble.$svg;
|
||||
|
||||
if ($compress === true) {
|
||||
file_put_contents($outFile, gzencode($svgContent));
|
||||
} else {
|
||||
file_put_contents($outFile, $svgContent);
|
||||
}
|
||||
}
|
||||
|
||||
return $svg;
|
||||
}
|
||||
}
|
||||
|
||||
//##########################################################################
|
||||
/** Fills frame with data.
|
||||
Each empty frame consist of markers, timing symbols and format configuration.
|
||||
Remaining place is place for data, and should be filled according to QR Code spec.
|
||||
*/
|
||||
class QRframeFiller {
|
||||
|
||||
public $width; ///< __Integer__ Frame width
|
||||
public $frame; ///< __Array__ Frame itself
|
||||
public $x; ///< __Integer__ current X position
|
||||
public $y; ///< __Integer__ current Y position
|
||||
public $dir; ///< __Integer__ direction
|
||||
public $bit; ///< __Integer__ bit
|
||||
|
||||
//----------------------------------------------------------------------
|
||||
/** Frame filler Constructor.
|
||||
@param Integer $width frame size
|
||||
@param Array $frame Frame array
|
||||
*/
|
||||
public function __construct($width, &$frame)
|
||||
{
|
||||
$this->width = $width;
|
||||
$this->frame = $frame;
|
||||
$this->x = $width - 1;
|
||||
$this->y = $width - 1;
|
||||
$this->dir = -1;
|
||||
$this->bit = -1;
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------
|
||||
/** Sets frame code at given position.
|
||||
@param Array $at position, map containing __x__ and __y__ coordinates
|
||||
@param Integer $val value to set
|
||||
*/
|
||||
public function setFrameAt($at, $val)
|
||||
{
|
||||
$this->frame[$at['y']][$at['x']] = chr($val);
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------
|
||||
/** Gets frame code from given position.
|
||||
@param Array $at position, map containing __x__ and __y__ coordinates
|
||||
@return Integer value at requested position
|
||||
*/
|
||||
public function getFrameAt($at)
|
||||
{
|
||||
return ord($this->frame[$at['y']][$at['x']]);
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------
|
||||
/** Proceed to next code point. */
|
||||
public function next()
|
||||
{
|
||||
do {
|
||||
|
||||
if($this->bit == -1) {
|
||||
$this->bit = 0;
|
||||
return array('x'=>$this->x, 'y'=>$this->y);
|
||||
}
|
||||
|
||||
$x = $this->x;
|
||||
$y = $this->y;
|
||||
$w = $this->width;
|
||||
|
||||
if($this->bit == 0) {
|
||||
$x--;
|
||||
$this->bit++;
|
||||
} else {
|
||||
$x++;
|
||||
$y += $this->dir;
|
||||
$this->bit--;
|
||||
}
|
||||
|
||||
if($this->dir < 0) {
|
||||
if($y < 0) {
|
||||
$y = 0;
|
||||
$x -= 2;
|
||||
$this->dir = 1;
|
||||
if($x == 6) {
|
||||
$x--;
|
||||
$y = 9;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
if($y == $w) {
|
||||
$y = $w - 1;
|
||||
$x -= 2;
|
||||
$this->dir = -1;
|
||||
if($x == 6) {
|
||||
$x--;
|
||||
$y -= 8;
|
||||
}
|
||||
}
|
||||
}
|
||||
if($x < 0 || $y < 0) return null;
|
||||
|
||||
$this->x = $x;
|
||||
$this->y = $y;
|
||||
|
||||
} while(ord($this->frame[$y][$x]) & 0x80);
|
||||
|
||||
return array('x'=>$x, 'y'=>$y);
|
||||
}
|
||||
|
||||
} ;
|
||||
|
||||
//##########################################################################
|
||||
/** QR Code encoder.
|
||||
Encoder is used by QRCode to create simple static code generators. */
|
||||
class QRencode {
|
||||
|
||||
public $casesensitive = true; ///< __Boolean__ does input stream id case sensitive, if not encoder may use more optimal charsets
|
||||
public $eightbit = false; ///< __Boolean__ does input stream is 8 bit
|
||||
|
||||
public $version = 0; ///< __Integer__ code version (total size) if __0__ - will be auto-detected
|
||||
public $size = 3; ///< __Integer__ pixel zoom factor, multiplier to map virtual code pixels to image output pixels
|
||||
public $margin = 4; ///< __Integer__ margin (silent zone) size, in code pixels
|
||||
|
||||
public $structured = 0; ///< Structured QR codes. Not supported.
|
||||
|
||||
public $level = QR_ECLEVEL_L; ///< __Integer__ error correction level __QR_ECLEVEL_L__, __QR_ECLEVEL_M__, __QR_ECLEVEL_Q__ or __QR_ECLEVEL_H__
|
||||
public $hint = QR_MODE_8; ///< __Integer__ encoding hint, __QR_MODE_8__ or __QR_MODE_KANJI__, Because Kanji encoding is kind of 8 bit encoding we need to hint encoder to use Kanji mode explicite. (otherwise it may try to encode it as plain 8 bit stream)
|
||||
|
||||
//----------------------------------------------------------------------
|
||||
/** Encoder instances factory.
|
||||
@param Integer $level error correction level __QR_ECLEVEL_L__, __QR_ECLEVEL_M__, __QR_ECLEVEL_Q__ or __QR_ECLEVEL_H__
|
||||
@param Integer $size pixel zoom factor, multiplier to map virtual code pixels to image output pixels
|
||||
@param Integer $margin margin (silent zone) size, in code pixels
|
||||
@return builded QRencode instance
|
||||
*/
|
||||
public static function factory($level = QR_ECLEVEL_L, $size = 3, $margin = 4)
|
||||
{
|
||||
$enc = new QRencode();
|
||||
$enc->size = $size;
|
||||
$enc->margin = $margin;
|
||||
|
||||
switch ($level.'') {
|
||||
case '0':
|
||||
case '1':
|
||||
case '2':
|
||||
case '3':
|
||||
$enc->level = $level;
|
||||
break;
|
||||
case 'l':
|
||||
case 'L':
|
||||
$enc->level = QR_ECLEVEL_L;
|
||||
break;
|
||||
case 'm':
|
||||
case 'M':
|
||||
$enc->level = QR_ECLEVEL_M;
|
||||
break;
|
||||
case 'q':
|
||||
case 'Q':
|
||||
$enc->level = QR_ECLEVEL_Q;
|
||||
break;
|
||||
case 'h':
|
||||
case 'H':
|
||||
$enc->level = QR_ECLEVEL_H;
|
||||
break;
|
||||
}
|
||||
|
||||
return $enc;
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------
|
||||
/** Encodes input into Raw code table.
|
||||
@param String $intext input text
|
||||
@param Boolean $notused (optional, not used) placeholder for similar outfile parameter
|
||||
@return __Array__ Raw code frame
|
||||
*/
|
||||
public function encodeRAW($intext, $notused = false)
|
||||
{
|
||||
$code = new QRcode();
|
||||
|
||||
if($this->eightbit) {
|
||||
$code->encodeString8bit($intext, $this->version, $this->level);
|
||||
} else {
|
||||
$code->encodeString($intext, $this->version, $this->level, $this->hint, $this->casesensitive);
|
||||
}
|
||||
|
||||
return $code->data;
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------
|
||||
/** Encodes input into binary code table.
|
||||
@param String $intext input text
|
||||
@param String $outfile (optional) output file to save code table, if __false__ file will be not saved
|
||||
@return __Array__ binary code frame
|
||||
*/
|
||||
public function encode($intext, $outfile = false)
|
||||
{
|
||||
$code = new QRcode();
|
||||
|
||||
if($this->eightbit) {
|
||||
$code->encodeString8bit($intext, $this->version, $this->level);
|
||||
} else {
|
||||
$code->encodeString($intext, $this->version, $this->level, $this->hint, $this->casesensitive);
|
||||
}
|
||||
|
||||
QRtools::markTime('after_encode');
|
||||
|
||||
$binarized = QRtools::binarize($code->data);
|
||||
if ($outfile!== false) {
|
||||
file_put_contents($outfile, join("\n", $binarized));
|
||||
}
|
||||
|
||||
return $binarized;
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------
|
||||
/** Encodes input into PNG image.
|
||||
@param String $intext input text
|
||||
@param String $outfile (optional) output file name, if __false__ outputs to browser with required headers
|
||||
@param Boolean $saveandprint (optional) if __true__ code is outputed to browser and saved to file, otherwise only saved to file. It is effective only if $outfile is specified.
|
||||
*/
|
||||
public function encodePNG($intext, $outfile = false, $saveandprint=false)
|
||||
{
|
||||
try {
|
||||
|
||||
ob_start();
|
||||
$tab = $this->encode($intext);
|
||||
$err = ob_get_contents();
|
||||
ob_end_clean();
|
||||
|
||||
if ($err != '')
|
||||
QRtools::log($outfile, $err);
|
||||
|
||||
$maxSize = (int)(QR_PNG_MAXIMUM_SIZE / (count($tab)+2*$this->margin));
|
||||
|
||||
QRimage::png($tab, $outfile, min(max(1, $this->size), $maxSize), $this->margin,$saveandprint);
|
||||
|
||||
} catch (Exception $e) {
|
||||
|
||||
QRtools::log($outfile, $e->getMessage());
|
||||
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/** @}*/
|
||||
Reference in New Issue
Block a user