570 lines
20 KiB
PHP
570 lines
20 KiB
PHP
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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 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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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 $ecc = array();
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public function __construct($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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class QRrawcode {
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public $version;
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public $datacode = array();
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public $ecccode = array();
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public $blocks;
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public $rsblocks = array(); //of RSblock
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public $count;
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public $dataLength;
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public $eccLength;
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public $b1;
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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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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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public function getCode()
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{
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$ret = NULL;
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if($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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class QRcode {
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public $version;
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public $width;
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public $data;
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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 FrameFiller($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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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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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 = $input->append($input, 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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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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public static function png($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4, $saveandprint=false, $back_color = 0xFFFFFF, $fore_color = 0x000000)
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{
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$enc = QRencode::factory($level, $size, $margin, $back_color, $fore_color);
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return $enc->encodePNG($text, $outfile, $saveandprint=false);
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}
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//----------------------------------------------------------------------
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public static function text($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, $outfile);
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}
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//----------------------------------------------------------------------
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public static function eps($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4, $saveandprint=false, $back_color = 0xFFFFFF, $fore_color = 0x000000, $cmyk = false)
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{
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$enc = QRencode::factory($level, $size, $margin, $back_color, $fore_color, $cmyk);
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return $enc->encodeEPS($text, $outfile, $saveandprint=false);
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}
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//----------------------------------------------------------------------
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public static function svg($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4, $saveandprint=false, $back_color = 0xFFFFFF, $fore_color = 0x000000)
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{
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$enc = QRencode::factory($level, $size, $margin, $back_color, $fore_color);
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return $enc->encodeSVG($text, $outfile, $saveandprint=false);
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}
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//----------------------------------------------------------------------
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public static function raw($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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class FrameFiller {
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public $width;
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public $frame;
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public $x;
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public $y;
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public $dir;
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public $bit;
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//----------------------------------------------------------------------
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public function __construct($width, &$frame)
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{
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$this->width = $width;
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$this->frame = $frame;
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$this->x = $width - 1;
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$this->y = $width - 1;
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$this->dir = -1;
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$this->bit = -1;
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}
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//----------------------------------------------------------------------
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public function setFrameAt($at, $val)
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{
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$this->frame[$at['y']][$at['x']] = chr($val);
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}
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//----------------------------------------------------------------------
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public function getFrameAt($at)
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{
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return ord($this->frame[$at['y']][$at['x']]);
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}
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//----------------------------------------------------------------------
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public function next()
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{
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do {
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if($this->bit == -1) {
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$this->bit = 0;
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return array('x'=>$this->x, 'y'=>$this->y);
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}
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$x = $this->x;
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$y = $this->y;
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$w = $this->width;
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if($this->bit == 0) {
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$x--;
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$this->bit++;
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} else {
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$x++;
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$y += $this->dir;
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$this->bit--;
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}
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if($this->dir < 0) {
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if($y < 0) {
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$y = 0;
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$x -= 2;
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$this->dir = 1;
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if($x == 6) {
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$x--;
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$y = 9;
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}
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}
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} else {
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if($y == $w) {
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$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);
|
||
|
|
}
|
||
|
|
|
||
|
|
} ;
|
||
|
|
|
||
|
|
//##########################################################################
|
||
|
|
|
||
|
|
class QRencode {
|
||
|
|
|
||
|
|
public $casesensitive = true;
|
||
|
|
public $eightbit = false;
|
||
|
|
|
||
|
|
public $version = 0;
|
||
|
|
public $size = 3;
|
||
|
|
public $margin = 4;
|
||
|
|
public $back_color = 0xFFFFFF;
|
||
|
|
public $fore_color = 0x000000;
|
||
|
|
|
||
|
|
public $structured = 0; // not supported yet
|
||
|
|
|
||
|
|
public $level = QR_ECLEVEL_L;
|
||
|
|
public $hint = QR_MODE_8;
|
||
|
|
|
||
|
|
//----------------------------------------------------------------------
|
||
|
|
public static function factory($level = QR_ECLEVEL_L, $size = 3, $margin = 4, $back_color = 0xFFFFFF, $fore_color = 0x000000, $cmyk = false)
|
||
|
|
{
|
||
|
|
$enc = new QRencode();
|
||
|
|
$enc->size = $size;
|
||
|
|
$enc->margin = $margin;
|
||
|
|
$enc->fore_color = $fore_color;
|
||
|
|
$enc->back_color = $back_color;
|
||
|
|
$enc->cmyk = $cmyk;
|
||
|
|
|
||
|
|
switch ($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 $enc;
|
||
|
|
}
|
||
|
|
|
||
|
|
//----------------------------------------------------------------------
|
||
|
|
public function encodeRAW($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);
|
||
|
|
}
|
||
|
|
|
||
|
|
return $code->data;
|
||
|
|
}
|
||
|
|
|
||
|
|
//----------------------------------------------------------------------
|
||
|
|
public function encode($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, $this->casesensitive);
|
||
|
|
}
|
||
|
|
|
||
|
|
QRtools::markTime('after_encode');
|
||
|
|
|
||
|
|
if ($outfile!== false) {
|
||
|
|
file_put_contents($outfile, join("\n", QRtools::binarize($code->data)));
|
||
|
|
} else {
|
||
|
|
return QRtools::binarize($code->data);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//----------------------------------------------------------------------
|
||
|
|
public function encodePNG($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, $this->back_color, $this->fore_color);
|
||
|
|
|
||
|
|
} catch (Exception $e) {
|
||
|
|
|
||
|
|
QRtools::log($outfile, $e->getMessage());
|
||
|
|
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//----------------------------------------------------------------------
|
||
|
|
public function encodeEPS($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*$this->margin));
|
||
|
|
|
||
|
|
QRvect::eps($tab, $outfile, min(max(1, $this->size), $maxSize), $this->margin,$saveandprint, $this->back_color, $this->fore_color, $this->cmyk);
|
||
|
|
|
||
|
|
} catch (Exception $e) {
|
||
|
|
|
||
|
|
QRtools::log($outfile, $e->getMessage());
|
||
|
|
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//----------------------------------------------------------------------
|
||
|
|
public function encodeSVG($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*$this->margin));
|
||
|
|
|
||
|
|
QRvect::svg($tab, $outfile, min(max(1, $this->size), $maxSize), $this->margin,$saveandprint, $this->back_color, $this->fore_color);
|
||
|
|
|
||
|
|
} catch (Exception $e) {
|
||
|
|
|
||
|
|
QRtools::log($outfile, $e->getMessage());
|
||
|
|
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|