2298 lines
55 KiB
JavaScript
2298 lines
55 KiB
JavaScript
//---------------------------------------------------------------------
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//
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// QR Code Generator for JavaScript
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//
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// Copyright (c) 2009 Kazuhiko Arase
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//
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// URL: http://www.d-project.com/
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//
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// Licensed under the MIT license:
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// http://www.opensource.org/licenses/mit-license.php
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//
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// The word 'QR Code' is registered trademark of
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// DENSO WAVE INCORPORATED
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// http://www.denso-wave.com/qrcode/faqpatent-e.html
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//
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//---------------------------------------------------------------------
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var qrcode = function() {
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//---------------------------------------------------------------------
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// qrcode
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//---------------------------------------------------------------------
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/**
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* qrcode
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* @param typeNumber 1 to 40
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* @param errorCorrectionLevel 'L','M','Q','H'
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*/
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var qrcode = function(typeNumber, errorCorrectionLevel) {
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var PAD0 = 0xEC;
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var PAD1 = 0x11;
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var _typeNumber = typeNumber;
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var _errorCorrectionLevel = QRErrorCorrectionLevel[errorCorrectionLevel];
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var _modules = null;
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var _moduleCount = 0;
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var _dataCache = null;
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var _dataList = [];
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var _this = {};
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var makeImpl = function(test, maskPattern) {
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_moduleCount = _typeNumber * 4 + 17;
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_modules = function(moduleCount) {
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var modules = new Array(moduleCount);
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for (var row = 0; row < moduleCount; row += 1) {
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modules[row] = new Array(moduleCount);
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for (var col = 0; col < moduleCount; col += 1) {
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modules[row][col] = null;
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}
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}
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return modules;
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}(_moduleCount);
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setupPositionProbePattern(0, 0);
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setupPositionProbePattern(_moduleCount - 7, 0);
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setupPositionProbePattern(0, _moduleCount - 7);
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setupPositionAdjustPattern();
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setupTimingPattern();
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setupTypeInfo(test, maskPattern);
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if (_typeNumber >= 7) {
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setupTypeNumber(test);
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}
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if (_dataCache == null) {
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_dataCache = createData(_typeNumber, _errorCorrectionLevel, _dataList);
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}
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mapData(_dataCache, maskPattern);
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};
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var setupPositionProbePattern = function(row, col) {
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for (var r = -1; r <= 7; r += 1) {
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if (row + r <= -1 || _moduleCount <= row + r) continue;
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for (var c = -1; c <= 7; c += 1) {
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if (col + c <= -1 || _moduleCount <= col + c) continue;
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if ( (0 <= r && r <= 6 && (c == 0 || c == 6) )
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|| (0 <= c && c <= 6 && (r == 0 || r == 6) )
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|| (2 <= r && r <= 4 && 2 <= c && c <= 4) ) {
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_modules[row + r][col + c] = true;
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} else {
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_modules[row + r][col + c] = false;
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}
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}
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}
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};
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var getBestMaskPattern = function() {
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var minLostPoint = 0;
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var pattern = 0;
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for (var i = 0; i < 8; i += 1) {
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makeImpl(true, i);
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var lostPoint = QRUtil.getLostPoint(_this);
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if (i == 0 || minLostPoint > lostPoint) {
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minLostPoint = lostPoint;
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pattern = i;
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}
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}
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return pattern;
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};
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var setupTimingPattern = function() {
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for (var r = 8; r < _moduleCount - 8; r += 1) {
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if (_modules[r][6] != null) {
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continue;
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}
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_modules[r][6] = (r % 2 == 0);
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}
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for (var c = 8; c < _moduleCount - 8; c += 1) {
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if (_modules[6][c] != null) {
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continue;
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}
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_modules[6][c] = (c % 2 == 0);
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}
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};
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var setupPositionAdjustPattern = function() {
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var pos = QRUtil.getPatternPosition(_typeNumber);
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for (var i = 0; i < pos.length; i += 1) {
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for (var j = 0; j < pos.length; j += 1) {
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var row = pos[i];
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var col = pos[j];
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if (_modules[row][col] != null) {
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continue;
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}
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for (var r = -2; r <= 2; r += 1) {
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for (var c = -2; c <= 2; c += 1) {
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if (r == -2 || r == 2 || c == -2 || c == 2
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|| (r == 0 && c == 0) ) {
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_modules[row + r][col + c] = true;
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} else {
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_modules[row + r][col + c] = false;
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}
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}
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}
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}
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}
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};
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var setupTypeNumber = function(test) {
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var bits = QRUtil.getBCHTypeNumber(_typeNumber);
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for (var i = 0; i < 18; i += 1) {
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var mod = (!test && ( (bits >> i) & 1) == 1);
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_modules[Math.floor(i / 3)][i % 3 + _moduleCount - 8 - 3] = mod;
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}
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for (var i = 0; i < 18; i += 1) {
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var mod = (!test && ( (bits >> i) & 1) == 1);
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_modules[i % 3 + _moduleCount - 8 - 3][Math.floor(i / 3)] = mod;
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}
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};
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var setupTypeInfo = function(test, maskPattern) {
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var data = (_errorCorrectionLevel << 3) | maskPattern;
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var bits = QRUtil.getBCHTypeInfo(data);
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// vertical
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for (var i = 0; i < 15; i += 1) {
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var mod = (!test && ( (bits >> i) & 1) == 1);
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if (i < 6) {
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_modules[i][8] = mod;
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} else if (i < 8) {
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_modules[i + 1][8] = mod;
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} else {
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_modules[_moduleCount - 15 + i][8] = mod;
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}
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}
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// horizontal
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for (var i = 0; i < 15; i += 1) {
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var mod = (!test && ( (bits >> i) & 1) == 1);
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if (i < 8) {
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_modules[8][_moduleCount - i - 1] = mod;
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} else if (i < 9) {
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_modules[8][15 - i - 1 + 1] = mod;
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} else {
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_modules[8][15 - i - 1] = mod;
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}
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}
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// fixed module
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_modules[_moduleCount - 8][8] = (!test);
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};
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var mapData = function(data, maskPattern) {
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var inc = -1;
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var row = _moduleCount - 1;
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var bitIndex = 7;
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var byteIndex = 0;
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var maskFunc = QRUtil.getMaskFunction(maskPattern);
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for (var col = _moduleCount - 1; col > 0; col -= 2) {
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if (col == 6) col -= 1;
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while (true) {
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for (var c = 0; c < 2; c += 1) {
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if (_modules[row][col - c] == null) {
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var dark = false;
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if (byteIndex < data.length) {
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dark = ( ( (data[byteIndex] >>> bitIndex) & 1) == 1);
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}
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var mask = maskFunc(row, col - c);
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if (mask) {
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dark = !dark;
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}
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_modules[row][col - c] = dark;
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bitIndex -= 1;
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if (bitIndex == -1) {
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byteIndex += 1;
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bitIndex = 7;
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}
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}
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}
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row += inc;
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if (row < 0 || _moduleCount <= row) {
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row -= inc;
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inc = -inc;
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break;
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}
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}
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}
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};
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var createBytes = function(buffer, rsBlocks) {
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var offset = 0;
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var maxDcCount = 0;
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var maxEcCount = 0;
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var dcdata = new Array(rsBlocks.length);
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var ecdata = new Array(rsBlocks.length);
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for (var r = 0; r < rsBlocks.length; r += 1) {
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var dcCount = rsBlocks[r].dataCount;
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var ecCount = rsBlocks[r].totalCount - dcCount;
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maxDcCount = Math.max(maxDcCount, dcCount);
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maxEcCount = Math.max(maxEcCount, ecCount);
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dcdata[r] = new Array(dcCount);
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for (var i = 0; i < dcdata[r].length; i += 1) {
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dcdata[r][i] = 0xff & buffer.getBuffer()[i + offset];
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}
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offset += dcCount;
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var rsPoly = QRUtil.getErrorCorrectPolynomial(ecCount);
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var rawPoly = qrPolynomial(dcdata[r], rsPoly.getLength() - 1);
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var modPoly = rawPoly.mod(rsPoly);
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ecdata[r] = new Array(rsPoly.getLength() - 1);
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for (var i = 0; i < ecdata[r].length; i += 1) {
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var modIndex = i + modPoly.getLength() - ecdata[r].length;
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ecdata[r][i] = (modIndex >= 0)? modPoly.getAt(modIndex) : 0;
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}
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}
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var totalCodeCount = 0;
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for (var i = 0; i < rsBlocks.length; i += 1) {
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totalCodeCount += rsBlocks[i].totalCount;
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}
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var data = new Array(totalCodeCount);
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var index = 0;
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for (var i = 0; i < maxDcCount; i += 1) {
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for (var r = 0; r < rsBlocks.length; r += 1) {
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if (i < dcdata[r].length) {
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data[index] = dcdata[r][i];
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index += 1;
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}
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}
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}
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for (var i = 0; i < maxEcCount; i += 1) {
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for (var r = 0; r < rsBlocks.length; r += 1) {
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if (i < ecdata[r].length) {
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data[index] = ecdata[r][i];
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index += 1;
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}
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}
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}
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return data;
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};
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var createData = function(typeNumber, errorCorrectionLevel, dataList) {
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var rsBlocks = QRRSBlock.getRSBlocks(typeNumber, errorCorrectionLevel);
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var buffer = qrBitBuffer();
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for (var i = 0; i < dataList.length; i += 1) {
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var data = dataList[i];
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buffer.put(data.getMode(), 4);
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buffer.put(data.getLength(), QRUtil.getLengthInBits(data.getMode(), typeNumber) );
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data.write(buffer);
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}
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// calc num max data.
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var totalDataCount = 0;
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for (var i = 0; i < rsBlocks.length; i += 1) {
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totalDataCount += rsBlocks[i].dataCount;
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}
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if (buffer.getLengthInBits() > totalDataCount * 8) {
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throw 'code length overflow. ('
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+ buffer.getLengthInBits()
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+ '>'
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+ totalDataCount * 8
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+ ')';
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}
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// end code
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if (buffer.getLengthInBits() + 4 <= totalDataCount * 8) {
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buffer.put(0, 4);
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}
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// padding
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while (buffer.getLengthInBits() % 8 != 0) {
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buffer.putBit(false);
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}
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// padding
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while (true) {
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if (buffer.getLengthInBits() >= totalDataCount * 8) {
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break;
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}
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buffer.put(PAD0, 8);
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if (buffer.getLengthInBits() >= totalDataCount * 8) {
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break;
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}
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buffer.put(PAD1, 8);
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}
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return createBytes(buffer, rsBlocks);
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};
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_this.addData = function(data, mode) {
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mode = mode || 'Byte';
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var newData = null;
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switch(mode) {
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case 'Numeric' :
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newData = qrNumber(data);
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break;
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case 'Alphanumeric' :
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newData = qrAlphaNum(data);
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break;
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case 'Byte' :
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newData = qr8BitByte(data);
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break;
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case 'Kanji' :
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newData = qrKanji(data);
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break;
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default :
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throw 'mode:' + mode;
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}
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_dataList.push(newData);
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_dataCache = null;
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};
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_this.isDark = function(row, col) {
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if (row < 0 || _moduleCount <= row || col < 0 || _moduleCount <= col) {
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throw row + ',' + col;
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}
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return _modules[row][col];
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};
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_this.getModuleCount = function() {
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return _moduleCount;
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};
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_this.make = function() {
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if (_typeNumber < 1) {
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var typeNumber = 1;
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for (; typeNumber < 40; typeNumber++) {
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var rsBlocks = QRRSBlock.getRSBlocks(typeNumber, _errorCorrectionLevel);
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var buffer = qrBitBuffer();
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for (var i = 0; i < _dataList.length; i++) {
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var data = _dataList[i];
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buffer.put(data.getMode(), 4);
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buffer.put(data.getLength(), QRUtil.getLengthInBits(data.getMode(), typeNumber) );
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data.write(buffer);
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}
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var totalDataCount = 0;
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for (var i = 0; i < rsBlocks.length; i++) {
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totalDataCount += rsBlocks[i].dataCount;
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}
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if (buffer.getLengthInBits() <= totalDataCount * 8) {
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break;
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}
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}
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_typeNumber = typeNumber;
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}
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makeImpl(false, getBestMaskPattern() );
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};
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_this.createTableTag = function(cellSize, margin) {
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cellSize = cellSize || 2;
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margin = (typeof margin == 'undefined')? cellSize * 4 : margin;
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var qrHtml = '';
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qrHtml += '<table style="';
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qrHtml += ' border-width: 0px; border-style: none;';
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qrHtml += ' border-collapse: collapse;';
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qrHtml += ' padding: 0px; margin: ' + margin + 'px;';
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qrHtml += '">';
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qrHtml += '<tbody>';
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for (var r = 0; r < _this.getModuleCount(); r += 1) {
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qrHtml += '<tr>';
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for (var c = 0; c < _this.getModuleCount(); c += 1) {
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qrHtml += '<td style="';
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qrHtml += ' border-width: 0px; border-style: none;';
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qrHtml += ' border-collapse: collapse;';
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qrHtml += ' padding: 0px; margin: 0px;';
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qrHtml += ' width: ' + cellSize + 'px;';
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qrHtml += ' height: ' + cellSize + 'px;';
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qrHtml += ' background-color: ';
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qrHtml += _this.isDark(r, c)? '#000000' : '#ffffff';
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qrHtml += ';';
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qrHtml += '"/>';
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}
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qrHtml += '</tr>';
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}
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qrHtml += '</tbody>';
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qrHtml += '</table>';
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return qrHtml;
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};
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_this.createSvgTag = function(cellSize, margin, alt, title) {
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var opts = {};
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if (typeof arguments[0] == 'object') {
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// Called by options.
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opts = arguments[0];
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// overwrite cellSize and margin.
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cellSize = opts.cellSize;
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margin = opts.margin;
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alt = opts.alt;
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title = opts.title;
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}
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cellSize = cellSize || 2;
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margin = (typeof margin == 'undefined')? cellSize * 4 : margin;
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// Compose alt property surrogate
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alt = (typeof alt === 'string') ? {text: alt} : alt || {};
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alt.text = alt.text || null;
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alt.id = (alt.text) ? alt.id || 'qrcode-description' : null;
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// Compose title property surrogate
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title = (typeof title === 'string') ? {text: title} : title || {};
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title.text = title.text || null;
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title.id = (title.text) ? title.id || 'qrcode-title' : null;
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var size = _this.getModuleCount() * cellSize + margin * 2;
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var c, mc, r, mr, qrSvg='', rect;
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rect = 'l' + cellSize + ',0 0,' + cellSize +
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' -' + cellSize + ',0 0,-' + cellSize + 'z ';
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qrSvg += '<svg version="1.1" xmlns="http://www.w3.org/2000/svg"';
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qrSvg += !opts.scalable ? ' width="' + size + 'px" height="' + size + 'px"' : '';
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qrSvg += ' viewBox="0 0 ' + size + ' ' + size + '" ';
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qrSvg += ' preserveAspectRatio="xMinYMin meet"';
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qrSvg += (title.text || alt.text) ? ' role="img" aria-labelledby="' +
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escapeXml([title.id, alt.id].join(' ').trim() ) + '"' : '';
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qrSvg += '>';
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qrSvg += (title.text) ? '<title id="' + escapeXml(title.id) + '">' +
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escapeXml(title.text) + '</title>' : '';
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qrSvg += (alt.text) ? '<description id="' + escapeXml(alt.id) + '">' +
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escapeXml(alt.text) + '</description>' : '';
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qrSvg += '<rect width="100%" height="100%" fill="white" cx="0" cy="0"/>';
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qrSvg += '<path d="';
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for (r = 0; r < _this.getModuleCount(); r += 1) {
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mr = r * cellSize + margin;
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for (c = 0; c < _this.getModuleCount(); c += 1) {
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if (_this.isDark(r, c) ) {
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mc = c*cellSize+margin;
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qrSvg += 'M' + mc + ',' + mr + rect;
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}
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}
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}
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qrSvg += '" stroke="transparent" fill="black"/>';
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qrSvg += '</svg>';
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return qrSvg;
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};
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|
|
_this.createDataURL = function(cellSize, margin) {
|
|
|
|
cellSize = cellSize || 2;
|
|
margin = (typeof margin == 'undefined')? cellSize * 4 : margin;
|
|
|
|
var size = _this.getModuleCount() * cellSize + margin * 2;
|
|
var min = margin;
|
|
var max = size - margin;
|
|
|
|
return createDataURL(size, size, function(x, y) {
|
|
if (min <= x && x < max && min <= y && y < max) {
|
|
var c = Math.floor( (x - min) / cellSize);
|
|
var r = Math.floor( (y - min) / cellSize);
|
|
return _this.isDark(r, c)? 0 : 1;
|
|
} else {
|
|
return 1;
|
|
}
|
|
} );
|
|
};
|
|
|
|
_this.createImgTag = function(cellSize, margin, alt) {
|
|
|
|
cellSize = cellSize || 2;
|
|
margin = (typeof margin == 'undefined')? cellSize * 4 : margin;
|
|
|
|
var size = _this.getModuleCount() * cellSize + margin * 2;
|
|
|
|
var img = '';
|
|
img += '<img';
|
|
img += '\u0020src="';
|
|
img += _this.createDataURL(cellSize, margin);
|
|
img += '"';
|
|
img += '\u0020width="';
|
|
img += size;
|
|
img += '"';
|
|
img += '\u0020height="';
|
|
img += size;
|
|
img += '"';
|
|
if (alt) {
|
|
img += '\u0020alt="';
|
|
img += escapeXml(alt);
|
|
img += '"';
|
|
}
|
|
img += '/>';
|
|
|
|
return img;
|
|
};
|
|
|
|
var escapeXml = function(s) {
|
|
var escaped = '';
|
|
for (var i = 0; i < s.length; i += 1) {
|
|
var c = s.charAt(i);
|
|
switch(c) {
|
|
case '<': escaped += '<'; break;
|
|
case '>': escaped += '>'; break;
|
|
case '&': escaped += '&'; break;
|
|
case '"': escaped += '"'; break;
|
|
default : escaped += c; break;
|
|
}
|
|
}
|
|
return escaped;
|
|
};
|
|
|
|
var _createHalfASCII = function(margin) {
|
|
var cellSize = 1;
|
|
margin = (typeof margin == 'undefined')? cellSize * 2 : margin;
|
|
|
|
var size = _this.getModuleCount() * cellSize + margin * 2;
|
|
var min = margin;
|
|
var max = size - margin;
|
|
|
|
var y, x, r1, r2, p;
|
|
|
|
var blocks = {
|
|
'██': '█',
|
|
'█ ': '▀',
|
|
' █': '▄',
|
|
' ': ' '
|
|
};
|
|
|
|
var blocksLastLineNoMargin = {
|
|
'██': '▀',
|
|
'█ ': '▀',
|
|
' █': ' ',
|
|
' ': ' '
|
|
};
|
|
|
|
var ascii = '';
|
|
for (y = 0; y < size; y += 2) {
|
|
r1 = Math.floor((y - min) / cellSize);
|
|
r2 = Math.floor((y + 1 - min) / cellSize);
|
|
for (x = 0; x < size; x += 1) {
|
|
p = '█';
|
|
|
|
if (min <= x && x < max && min <= y && y < max && _this.isDark(r1, Math.floor((x - min) / cellSize))) {
|
|
p = ' ';
|
|
}
|
|
|
|
if (min <= x && x < max && min <= y+1 && y+1 < max && _this.isDark(r2, Math.floor((x - min) / cellSize))) {
|
|
p += ' ';
|
|
}
|
|
else {
|
|
p += '█';
|
|
}
|
|
|
|
// Output 2 characters per pixel, to create full square. 1 character per pixels gives only half width of square.
|
|
ascii += (margin < 1 && y+1 >= max) ? blocksLastLineNoMargin[p] : blocks[p];
|
|
}
|
|
|
|
ascii += '\n';
|
|
}
|
|
|
|
if (size % 2 && margin > 0) {
|
|
return ascii.substring(0, ascii.length - size - 1) + Array(size+1).join('▀');
|
|
}
|
|
|
|
return ascii.substring(0, ascii.length-1);
|
|
};
|
|
|
|
_this.createASCII = function(cellSize, margin) {
|
|
cellSize = cellSize || 1;
|
|
|
|
if (cellSize < 2) {
|
|
return _createHalfASCII(margin);
|
|
}
|
|
|
|
cellSize -= 1;
|
|
margin = (typeof margin == 'undefined')? cellSize * 2 : margin;
|
|
|
|
var size = _this.getModuleCount() * cellSize + margin * 2;
|
|
var min = margin;
|
|
var max = size - margin;
|
|
|
|
var y, x, r, p;
|
|
|
|
var white = Array(cellSize+1).join('██');
|
|
var black = Array(cellSize+1).join(' ');
|
|
|
|
var ascii = '';
|
|
var line = '';
|
|
for (y = 0; y < size; y += 1) {
|
|
r = Math.floor( (y - min) / cellSize);
|
|
line = '';
|
|
for (x = 0; x < size; x += 1) {
|
|
p = 1;
|
|
|
|
if (min <= x && x < max && min <= y && y < max && _this.isDark(r, Math.floor((x - min) / cellSize))) {
|
|
p = 0;
|
|
}
|
|
|
|
// Output 2 characters per pixel, to create full square. 1 character per pixels gives only half width of square.
|
|
line += p ? white : black;
|
|
}
|
|
|
|
for (r = 0; r < cellSize; r += 1) {
|
|
ascii += line + '\n';
|
|
}
|
|
}
|
|
|
|
return ascii.substring(0, ascii.length-1);
|
|
};
|
|
|
|
_this.renderTo2dContext = function(context, cellSize) {
|
|
cellSize = cellSize || 2;
|
|
var length = _this.getModuleCount();
|
|
for (var row = 0; row < length; row++) {
|
|
for (var col = 0; col < length; col++) {
|
|
context.fillStyle = _this.isDark(row, col) ? 'black' : 'white';
|
|
context.fillRect(row * cellSize, col * cellSize, cellSize, cellSize);
|
|
}
|
|
}
|
|
}
|
|
|
|
return _this;
|
|
};
|
|
|
|
//---------------------------------------------------------------------
|
|
// qrcode.stringToBytes
|
|
//---------------------------------------------------------------------
|
|
|
|
qrcode.stringToBytesFuncs = {
|
|
'default' : function(s) {
|
|
var bytes = [];
|
|
for (var i = 0; i < s.length; i += 1) {
|
|
var c = s.charCodeAt(i);
|
|
bytes.push(c & 0xff);
|
|
}
|
|
return bytes;
|
|
}
|
|
};
|
|
|
|
qrcode.stringToBytes = qrcode.stringToBytesFuncs['default'];
|
|
|
|
//---------------------------------------------------------------------
|
|
// qrcode.createStringToBytes
|
|
//---------------------------------------------------------------------
|
|
|
|
/**
|
|
* @param unicodeData base64 string of byte array.
|
|
* [16bit Unicode],[16bit Bytes], ...
|
|
* @param numChars
|
|
*/
|
|
qrcode.createStringToBytes = function(unicodeData, numChars) {
|
|
|
|
// create conversion map.
|
|
|
|
var unicodeMap = function() {
|
|
|
|
var bin = base64DecodeInputStream(unicodeData);
|
|
var read = function() {
|
|
var b = bin.read();
|
|
if (b == -1) throw 'eof';
|
|
return b;
|
|
};
|
|
|
|
var count = 0;
|
|
var unicodeMap = {};
|
|
while (true) {
|
|
var b0 = bin.read();
|
|
if (b0 == -1) break;
|
|
var b1 = read();
|
|
var b2 = read();
|
|
var b3 = read();
|
|
var k = String.fromCharCode( (b0 << 8) | b1);
|
|
var v = (b2 << 8) | b3;
|
|
unicodeMap[k] = v;
|
|
count += 1;
|
|
}
|
|
if (count != numChars) {
|
|
throw count + ' != ' + numChars;
|
|
}
|
|
|
|
return unicodeMap;
|
|
}();
|
|
|
|
var unknownChar = '?'.charCodeAt(0);
|
|
|
|
return function(s) {
|
|
var bytes = [];
|
|
for (var i = 0; i < s.length; i += 1) {
|
|
var c = s.charCodeAt(i);
|
|
if (c < 128) {
|
|
bytes.push(c);
|
|
} else {
|
|
var b = unicodeMap[s.charAt(i)];
|
|
if (typeof b == 'number') {
|
|
if ( (b & 0xff) == b) {
|
|
// 1byte
|
|
bytes.push(b);
|
|
} else {
|
|
// 2bytes
|
|
bytes.push(b >>> 8);
|
|
bytes.push(b & 0xff);
|
|
}
|
|
} else {
|
|
bytes.push(unknownChar);
|
|
}
|
|
}
|
|
}
|
|
return bytes;
|
|
};
|
|
};
|
|
|
|
//---------------------------------------------------------------------
|
|
// QRMode
|
|
//---------------------------------------------------------------------
|
|
|
|
var QRMode = {
|
|
MODE_NUMBER : 1 << 0,
|
|
MODE_ALPHA_NUM : 1 << 1,
|
|
MODE_8BIT_BYTE : 1 << 2,
|
|
MODE_KANJI : 1 << 3
|
|
};
|
|
|
|
//---------------------------------------------------------------------
|
|
// QRErrorCorrectionLevel
|
|
//---------------------------------------------------------------------
|
|
|
|
var QRErrorCorrectionLevel = {
|
|
L : 1,
|
|
M : 0,
|
|
Q : 3,
|
|
H : 2
|
|
};
|
|
|
|
//---------------------------------------------------------------------
|
|
// QRMaskPattern
|
|
//---------------------------------------------------------------------
|
|
|
|
var QRMaskPattern = {
|
|
PATTERN000 : 0,
|
|
PATTERN001 : 1,
|
|
PATTERN010 : 2,
|
|
PATTERN011 : 3,
|
|
PATTERN100 : 4,
|
|
PATTERN101 : 5,
|
|
PATTERN110 : 6,
|
|
PATTERN111 : 7
|
|
};
|
|
|
|
//---------------------------------------------------------------------
|
|
// QRUtil
|
|
//---------------------------------------------------------------------
|
|
|
|
var QRUtil = function() {
|
|
|
|
var PATTERN_POSITION_TABLE = [
|
|
[],
|
|
[6, 18],
|
|
[6, 22],
|
|
[6, 26],
|
|
[6, 30],
|
|
[6, 34],
|
|
[6, 22, 38],
|
|
[6, 24, 42],
|
|
[6, 26, 46],
|
|
[6, 28, 50],
|
|
[6, 30, 54],
|
|
[6, 32, 58],
|
|
[6, 34, 62],
|
|
[6, 26, 46, 66],
|
|
[6, 26, 48, 70],
|
|
[6, 26, 50, 74],
|
|
[6, 30, 54, 78],
|
|
[6, 30, 56, 82],
|
|
[6, 30, 58, 86],
|
|
[6, 34, 62, 90],
|
|
[6, 28, 50, 72, 94],
|
|
[6, 26, 50, 74, 98],
|
|
[6, 30, 54, 78, 102],
|
|
[6, 28, 54, 80, 106],
|
|
[6, 32, 58, 84, 110],
|
|
[6, 30, 58, 86, 114],
|
|
[6, 34, 62, 90, 118],
|
|
[6, 26, 50, 74, 98, 122],
|
|
[6, 30, 54, 78, 102, 126],
|
|
[6, 26, 52, 78, 104, 130],
|
|
[6, 30, 56, 82, 108, 134],
|
|
[6, 34, 60, 86, 112, 138],
|
|
[6, 30, 58, 86, 114, 142],
|
|
[6, 34, 62, 90, 118, 146],
|
|
[6, 30, 54, 78, 102, 126, 150],
|
|
[6, 24, 50, 76, 102, 128, 154],
|
|
[6, 28, 54, 80, 106, 132, 158],
|
|
[6, 32, 58, 84, 110, 136, 162],
|
|
[6, 26, 54, 82, 110, 138, 166],
|
|
[6, 30, 58, 86, 114, 142, 170]
|
|
];
|
|
var G15 = (1 << 10) | (1 << 8) | (1 << 5) | (1 << 4) | (1 << 2) | (1 << 1) | (1 << 0);
|
|
var G18 = (1 << 12) | (1 << 11) | (1 << 10) | (1 << 9) | (1 << 8) | (1 << 5) | (1 << 2) | (1 << 0);
|
|
var G15_MASK = (1 << 14) | (1 << 12) | (1 << 10) | (1 << 4) | (1 << 1);
|
|
|
|
var _this = {};
|
|
|
|
var getBCHDigit = function(data) {
|
|
var digit = 0;
|
|
while (data != 0) {
|
|
digit += 1;
|
|
data >>>= 1;
|
|
}
|
|
return digit;
|
|
};
|
|
|
|
_this.getBCHTypeInfo = function(data) {
|
|
var d = data << 10;
|
|
while (getBCHDigit(d) - getBCHDigit(G15) >= 0) {
|
|
d ^= (G15 << (getBCHDigit(d) - getBCHDigit(G15) ) );
|
|
}
|
|
return ( (data << 10) | d) ^ G15_MASK;
|
|
};
|
|
|
|
_this.getBCHTypeNumber = function(data) {
|
|
var d = data << 12;
|
|
while (getBCHDigit(d) - getBCHDigit(G18) >= 0) {
|
|
d ^= (G18 << (getBCHDigit(d) - getBCHDigit(G18) ) );
|
|
}
|
|
return (data << 12) | d;
|
|
};
|
|
|
|
_this.getPatternPosition = function(typeNumber) {
|
|
return PATTERN_POSITION_TABLE[typeNumber - 1];
|
|
};
|
|
|
|
_this.getMaskFunction = function(maskPattern) {
|
|
|
|
switch (maskPattern) {
|
|
|
|
case QRMaskPattern.PATTERN000 :
|
|
return function(i, j) { return (i + j) % 2 == 0; };
|
|
case QRMaskPattern.PATTERN001 :
|
|
return function(i, j) { return i % 2 == 0; };
|
|
case QRMaskPattern.PATTERN010 :
|
|
return function(i, j) { return j % 3 == 0; };
|
|
case QRMaskPattern.PATTERN011 :
|
|
return function(i, j) { return (i + j) % 3 == 0; };
|
|
case QRMaskPattern.PATTERN100 :
|
|
return function(i, j) { return (Math.floor(i / 2) + Math.floor(j / 3) ) % 2 == 0; };
|
|
case QRMaskPattern.PATTERN101 :
|
|
return function(i, j) { return (i * j) % 2 + (i * j) % 3 == 0; };
|
|
case QRMaskPattern.PATTERN110 :
|
|
return function(i, j) { return ( (i * j) % 2 + (i * j) % 3) % 2 == 0; };
|
|
case QRMaskPattern.PATTERN111 :
|
|
return function(i, j) { return ( (i * j) % 3 + (i + j) % 2) % 2 == 0; };
|
|
|
|
default :
|
|
throw 'bad maskPattern:' + maskPattern;
|
|
}
|
|
};
|
|
|
|
_this.getErrorCorrectPolynomial = function(errorCorrectLength) {
|
|
var a = qrPolynomial([1], 0);
|
|
for (var i = 0; i < errorCorrectLength; i += 1) {
|
|
a = a.multiply(qrPolynomial([1, QRMath.gexp(i)], 0) );
|
|
}
|
|
return a;
|
|
};
|
|
|
|
_this.getLengthInBits = function(mode, type) {
|
|
|
|
if (1 <= type && type < 10) {
|
|
|
|
// 1 - 9
|
|
|
|
switch(mode) {
|
|
case QRMode.MODE_NUMBER : return 10;
|
|
case QRMode.MODE_ALPHA_NUM : return 9;
|
|
case QRMode.MODE_8BIT_BYTE : return 8;
|
|
case QRMode.MODE_KANJI : return 8;
|
|
default :
|
|
throw 'mode:' + mode;
|
|
}
|
|
|
|
} else if (type < 27) {
|
|
|
|
// 10 - 26
|
|
|
|
switch(mode) {
|
|
case QRMode.MODE_NUMBER : return 12;
|
|
case QRMode.MODE_ALPHA_NUM : return 11;
|
|
case QRMode.MODE_8BIT_BYTE : return 16;
|
|
case QRMode.MODE_KANJI : return 10;
|
|
default :
|
|
throw 'mode:' + mode;
|
|
}
|
|
|
|
} else if (type < 41) {
|
|
|
|
// 27 - 40
|
|
|
|
switch(mode) {
|
|
case QRMode.MODE_NUMBER : return 14;
|
|
case QRMode.MODE_ALPHA_NUM : return 13;
|
|
case QRMode.MODE_8BIT_BYTE : return 16;
|
|
case QRMode.MODE_KANJI : return 12;
|
|
default :
|
|
throw 'mode:' + mode;
|
|
}
|
|
|
|
} else {
|
|
throw 'type:' + type;
|
|
}
|
|
};
|
|
|
|
_this.getLostPoint = function(qrcode) {
|
|
|
|
var moduleCount = qrcode.getModuleCount();
|
|
|
|
var lostPoint = 0;
|
|
|
|
// LEVEL1
|
|
|
|
for (var row = 0; row < moduleCount; row += 1) {
|
|
for (var col = 0; col < moduleCount; col += 1) {
|
|
|
|
var sameCount = 0;
|
|
var dark = qrcode.isDark(row, col);
|
|
|
|
for (var r = -1; r <= 1; r += 1) {
|
|
|
|
if (row + r < 0 || moduleCount <= row + r) {
|
|
continue;
|
|
}
|
|
|
|
for (var c = -1; c <= 1; c += 1) {
|
|
|
|
if (col + c < 0 || moduleCount <= col + c) {
|
|
continue;
|
|
}
|
|
|
|
if (r == 0 && c == 0) {
|
|
continue;
|
|
}
|
|
|
|
if (dark == qrcode.isDark(row + r, col + c) ) {
|
|
sameCount += 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (sameCount > 5) {
|
|
lostPoint += (3 + sameCount - 5);
|
|
}
|
|
}
|
|
};
|
|
|
|
// LEVEL2
|
|
|
|
for (var row = 0; row < moduleCount - 1; row += 1) {
|
|
for (var col = 0; col < moduleCount - 1; col += 1) {
|
|
var count = 0;
|
|
if (qrcode.isDark(row, col) ) count += 1;
|
|
if (qrcode.isDark(row + 1, col) ) count += 1;
|
|
if (qrcode.isDark(row, col + 1) ) count += 1;
|
|
if (qrcode.isDark(row + 1, col + 1) ) count += 1;
|
|
if (count == 0 || count == 4) {
|
|
lostPoint += 3;
|
|
}
|
|
}
|
|
}
|
|
|
|
// LEVEL3
|
|
|
|
for (var row = 0; row < moduleCount; row += 1) {
|
|
for (var col = 0; col < moduleCount - 6; col += 1) {
|
|
if (qrcode.isDark(row, col)
|
|
&& !qrcode.isDark(row, col + 1)
|
|
&& qrcode.isDark(row, col + 2)
|
|
&& qrcode.isDark(row, col + 3)
|
|
&& qrcode.isDark(row, col + 4)
|
|
&& !qrcode.isDark(row, col + 5)
|
|
&& qrcode.isDark(row, col + 6) ) {
|
|
lostPoint += 40;
|
|
}
|
|
}
|
|
}
|
|
|
|
for (var col = 0; col < moduleCount; col += 1) {
|
|
for (var row = 0; row < moduleCount - 6; row += 1) {
|
|
if (qrcode.isDark(row, col)
|
|
&& !qrcode.isDark(row + 1, col)
|
|
&& qrcode.isDark(row + 2, col)
|
|
&& qrcode.isDark(row + 3, col)
|
|
&& qrcode.isDark(row + 4, col)
|
|
&& !qrcode.isDark(row + 5, col)
|
|
&& qrcode.isDark(row + 6, col) ) {
|
|
lostPoint += 40;
|
|
}
|
|
}
|
|
}
|
|
|
|
// LEVEL4
|
|
|
|
var darkCount = 0;
|
|
|
|
for (var col = 0; col < moduleCount; col += 1) {
|
|
for (var row = 0; row < moduleCount; row += 1) {
|
|
if (qrcode.isDark(row, col) ) {
|
|
darkCount += 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
var ratio = Math.abs(100 * darkCount / moduleCount / moduleCount - 50) / 5;
|
|
lostPoint += ratio * 10;
|
|
|
|
return lostPoint;
|
|
};
|
|
|
|
return _this;
|
|
}();
|
|
|
|
//---------------------------------------------------------------------
|
|
// QRMath
|
|
//---------------------------------------------------------------------
|
|
|
|
var QRMath = function() {
|
|
|
|
var EXP_TABLE = new Array(256);
|
|
var LOG_TABLE = new Array(256);
|
|
|
|
// initialize tables
|
|
for (var i = 0; i < 8; i += 1) {
|
|
EXP_TABLE[i] = 1 << i;
|
|
}
|
|
for (var i = 8; i < 256; i += 1) {
|
|
EXP_TABLE[i] = EXP_TABLE[i - 4]
|
|
^ EXP_TABLE[i - 5]
|
|
^ EXP_TABLE[i - 6]
|
|
^ EXP_TABLE[i - 8];
|
|
}
|
|
for (var i = 0; i < 255; i += 1) {
|
|
LOG_TABLE[EXP_TABLE[i] ] = i;
|
|
}
|
|
|
|
var _this = {};
|
|
|
|
_this.glog = function(n) {
|
|
|
|
if (n < 1) {
|
|
throw 'glog(' + n + ')';
|
|
}
|
|
|
|
return LOG_TABLE[n];
|
|
};
|
|
|
|
_this.gexp = function(n) {
|
|
|
|
while (n < 0) {
|
|
n += 255;
|
|
}
|
|
|
|
while (n >= 256) {
|
|
n -= 255;
|
|
}
|
|
|
|
return EXP_TABLE[n];
|
|
};
|
|
|
|
return _this;
|
|
}();
|
|
|
|
//---------------------------------------------------------------------
|
|
// qrPolynomial
|
|
//---------------------------------------------------------------------
|
|
|
|
function qrPolynomial(num, shift) {
|
|
|
|
if (typeof num.length == 'undefined') {
|
|
throw num.length + '/' + shift;
|
|
}
|
|
|
|
var _num = function() {
|
|
var offset = 0;
|
|
while (offset < num.length && num[offset] == 0) {
|
|
offset += 1;
|
|
}
|
|
var _num = new Array(num.length - offset + shift);
|
|
for (var i = 0; i < num.length - offset; i += 1) {
|
|
_num[i] = num[i + offset];
|
|
}
|
|
return _num;
|
|
}();
|
|
|
|
var _this = {};
|
|
|
|
_this.getAt = function(index) {
|
|
return _num[index];
|
|
};
|
|
|
|
_this.getLength = function() {
|
|
return _num.length;
|
|
};
|
|
|
|
_this.multiply = function(e) {
|
|
|
|
var num = new Array(_this.getLength() + e.getLength() - 1);
|
|
|
|
for (var i = 0; i < _this.getLength(); i += 1) {
|
|
for (var j = 0; j < e.getLength(); j += 1) {
|
|
num[i + j] ^= QRMath.gexp(QRMath.glog(_this.getAt(i) ) + QRMath.glog(e.getAt(j) ) );
|
|
}
|
|
}
|
|
|
|
return qrPolynomial(num, 0);
|
|
};
|
|
|
|
_this.mod = function(e) {
|
|
|
|
if (_this.getLength() - e.getLength() < 0) {
|
|
return _this;
|
|
}
|
|
|
|
var ratio = QRMath.glog(_this.getAt(0) ) - QRMath.glog(e.getAt(0) );
|
|
|
|
var num = new Array(_this.getLength() );
|
|
for (var i = 0; i < _this.getLength(); i += 1) {
|
|
num[i] = _this.getAt(i);
|
|
}
|
|
|
|
for (var i = 0; i < e.getLength(); i += 1) {
|
|
num[i] ^= QRMath.gexp(QRMath.glog(e.getAt(i) ) + ratio);
|
|
}
|
|
|
|
// recursive call
|
|
return qrPolynomial(num, 0).mod(e);
|
|
};
|
|
|
|
return _this;
|
|
};
|
|
|
|
//---------------------------------------------------------------------
|
|
// QRRSBlock
|
|
//---------------------------------------------------------------------
|
|
|
|
var QRRSBlock = function() {
|
|
|
|
var RS_BLOCK_TABLE = [
|
|
|
|
// L
|
|
// M
|
|
// Q
|
|
// H
|
|
|
|
// 1
|
|
[1, 26, 19],
|
|
[1, 26, 16],
|
|
[1, 26, 13],
|
|
[1, 26, 9],
|
|
|
|
// 2
|
|
[1, 44, 34],
|
|
[1, 44, 28],
|
|
[1, 44, 22],
|
|
[1, 44, 16],
|
|
|
|
// 3
|
|
[1, 70, 55],
|
|
[1, 70, 44],
|
|
[2, 35, 17],
|
|
[2, 35, 13],
|
|
|
|
// 4
|
|
[1, 100, 80],
|
|
[2, 50, 32],
|
|
[2, 50, 24],
|
|
[4, 25, 9],
|
|
|
|
// 5
|
|
[1, 134, 108],
|
|
[2, 67, 43],
|
|
[2, 33, 15, 2, 34, 16],
|
|
[2, 33, 11, 2, 34, 12],
|
|
|
|
// 6
|
|
[2, 86, 68],
|
|
[4, 43, 27],
|
|
[4, 43, 19],
|
|
[4, 43, 15],
|
|
|
|
// 7
|
|
[2, 98, 78],
|
|
[4, 49, 31],
|
|
[2, 32, 14, 4, 33, 15],
|
|
[4, 39, 13, 1, 40, 14],
|
|
|
|
// 8
|
|
[2, 121, 97],
|
|
[2, 60, 38, 2, 61, 39],
|
|
[4, 40, 18, 2, 41, 19],
|
|
[4, 40, 14, 2, 41, 15],
|
|
|
|
// 9
|
|
[2, 146, 116],
|
|
[3, 58, 36, 2, 59, 37],
|
|
[4, 36, 16, 4, 37, 17],
|
|
[4, 36, 12, 4, 37, 13],
|
|
|
|
// 10
|
|
[2, 86, 68, 2, 87, 69],
|
|
[4, 69, 43, 1, 70, 44],
|
|
[6, 43, 19, 2, 44, 20],
|
|
[6, 43, 15, 2, 44, 16],
|
|
|
|
// 11
|
|
[4, 101, 81],
|
|
[1, 80, 50, 4, 81, 51],
|
|
[4, 50, 22, 4, 51, 23],
|
|
[3, 36, 12, 8, 37, 13],
|
|
|
|
// 12
|
|
[2, 116, 92, 2, 117, 93],
|
|
[6, 58, 36, 2, 59, 37],
|
|
[4, 46, 20, 6, 47, 21],
|
|
[7, 42, 14, 4, 43, 15],
|
|
|
|
// 13
|
|
[4, 133, 107],
|
|
[8, 59, 37, 1, 60, 38],
|
|
[8, 44, 20, 4, 45, 21],
|
|
[12, 33, 11, 4, 34, 12],
|
|
|
|
// 14
|
|
[3, 145, 115, 1, 146, 116],
|
|
[4, 64, 40, 5, 65, 41],
|
|
[11, 36, 16, 5, 37, 17],
|
|
[11, 36, 12, 5, 37, 13],
|
|
|
|
// 15
|
|
[5, 109, 87, 1, 110, 88],
|
|
[5, 65, 41, 5, 66, 42],
|
|
[5, 54, 24, 7, 55, 25],
|
|
[11, 36, 12, 7, 37, 13],
|
|
|
|
// 16
|
|
[5, 122, 98, 1, 123, 99],
|
|
[7, 73, 45, 3, 74, 46],
|
|
[15, 43, 19, 2, 44, 20],
|
|
[3, 45, 15, 13, 46, 16],
|
|
|
|
// 17
|
|
[1, 135, 107, 5, 136, 108],
|
|
[10, 74, 46, 1, 75, 47],
|
|
[1, 50, 22, 15, 51, 23],
|
|
[2, 42, 14, 17, 43, 15],
|
|
|
|
// 18
|
|
[5, 150, 120, 1, 151, 121],
|
|
[9, 69, 43, 4, 70, 44],
|
|
[17, 50, 22, 1, 51, 23],
|
|
[2, 42, 14, 19, 43, 15],
|
|
|
|
// 19
|
|
[3, 141, 113, 4, 142, 114],
|
|
[3, 70, 44, 11, 71, 45],
|
|
[17, 47, 21, 4, 48, 22],
|
|
[9, 39, 13, 16, 40, 14],
|
|
|
|
// 20
|
|
[3, 135, 107, 5, 136, 108],
|
|
[3, 67, 41, 13, 68, 42],
|
|
[15, 54, 24, 5, 55, 25],
|
|
[15, 43, 15, 10, 44, 16],
|
|
|
|
// 21
|
|
[4, 144, 116, 4, 145, 117],
|
|
[17, 68, 42],
|
|
[17, 50, 22, 6, 51, 23],
|
|
[19, 46, 16, 6, 47, 17],
|
|
|
|
// 22
|
|
[2, 139, 111, 7, 140, 112],
|
|
[17, 74, 46],
|
|
[7, 54, 24, 16, 55, 25],
|
|
[34, 37, 13],
|
|
|
|
// 23
|
|
[4, 151, 121, 5, 152, 122],
|
|
[4, 75, 47, 14, 76, 48],
|
|
[11, 54, 24, 14, 55, 25],
|
|
[16, 45, 15, 14, 46, 16],
|
|
|
|
// 24
|
|
[6, 147, 117, 4, 148, 118],
|
|
[6, 73, 45, 14, 74, 46],
|
|
[11, 54, 24, 16, 55, 25],
|
|
[30, 46, 16, 2, 47, 17],
|
|
|
|
// 25
|
|
[8, 132, 106, 4, 133, 107],
|
|
[8, 75, 47, 13, 76, 48],
|
|
[7, 54, 24, 22, 55, 25],
|
|
[22, 45, 15, 13, 46, 16],
|
|
|
|
// 26
|
|
[10, 142, 114, 2, 143, 115],
|
|
[19, 74, 46, 4, 75, 47],
|
|
[28, 50, 22, 6, 51, 23],
|
|
[33, 46, 16, 4, 47, 17],
|
|
|
|
// 27
|
|
[8, 152, 122, 4, 153, 123],
|
|
[22, 73, 45, 3, 74, 46],
|
|
[8, 53, 23, 26, 54, 24],
|
|
[12, 45, 15, 28, 46, 16],
|
|
|
|
// 28
|
|
[3, 147, 117, 10, 148, 118],
|
|
[3, 73, 45, 23, 74, 46],
|
|
[4, 54, 24, 31, 55, 25],
|
|
[11, 45, 15, 31, 46, 16],
|
|
|
|
// 29
|
|
[7, 146, 116, 7, 147, 117],
|
|
[21, 73, 45, 7, 74, 46],
|
|
[1, 53, 23, 37, 54, 24],
|
|
[19, 45, 15, 26, 46, 16],
|
|
|
|
// 30
|
|
[5, 145, 115, 10, 146, 116],
|
|
[19, 75, 47, 10, 76, 48],
|
|
[15, 54, 24, 25, 55, 25],
|
|
[23, 45, 15, 25, 46, 16],
|
|
|
|
// 31
|
|
[13, 145, 115, 3, 146, 116],
|
|
[2, 74, 46, 29, 75, 47],
|
|
[42, 54, 24, 1, 55, 25],
|
|
[23, 45, 15, 28, 46, 16],
|
|
|
|
// 32
|
|
[17, 145, 115],
|
|
[10, 74, 46, 23, 75, 47],
|
|
[10, 54, 24, 35, 55, 25],
|
|
[19, 45, 15, 35, 46, 16],
|
|
|
|
// 33
|
|
[17, 145, 115, 1, 146, 116],
|
|
[14, 74, 46, 21, 75, 47],
|
|
[29, 54, 24, 19, 55, 25],
|
|
[11, 45, 15, 46, 46, 16],
|
|
|
|
// 34
|
|
[13, 145, 115, 6, 146, 116],
|
|
[14, 74, 46, 23, 75, 47],
|
|
[44, 54, 24, 7, 55, 25],
|
|
[59, 46, 16, 1, 47, 17],
|
|
|
|
// 35
|
|
[12, 151, 121, 7, 152, 122],
|
|
[12, 75, 47, 26, 76, 48],
|
|
[39, 54, 24, 14, 55, 25],
|
|
[22, 45, 15, 41, 46, 16],
|
|
|
|
// 36
|
|
[6, 151, 121, 14, 152, 122],
|
|
[6, 75, 47, 34, 76, 48],
|
|
[46, 54, 24, 10, 55, 25],
|
|
[2, 45, 15, 64, 46, 16],
|
|
|
|
// 37
|
|
[17, 152, 122, 4, 153, 123],
|
|
[29, 74, 46, 14, 75, 47],
|
|
[49, 54, 24, 10, 55, 25],
|
|
[24, 45, 15, 46, 46, 16],
|
|
|
|
// 38
|
|
[4, 152, 122, 18, 153, 123],
|
|
[13, 74, 46, 32, 75, 47],
|
|
[48, 54, 24, 14, 55, 25],
|
|
[42, 45, 15, 32, 46, 16],
|
|
|
|
// 39
|
|
[20, 147, 117, 4, 148, 118],
|
|
[40, 75, 47, 7, 76, 48],
|
|
[43, 54, 24, 22, 55, 25],
|
|
[10, 45, 15, 67, 46, 16],
|
|
|
|
// 40
|
|
[19, 148, 118, 6, 149, 119],
|
|
[18, 75, 47, 31, 76, 48],
|
|
[34, 54, 24, 34, 55, 25],
|
|
[20, 45, 15, 61, 46, 16]
|
|
];
|
|
|
|
var qrRSBlock = function(totalCount, dataCount) {
|
|
var _this = {};
|
|
_this.totalCount = totalCount;
|
|
_this.dataCount = dataCount;
|
|
return _this;
|
|
};
|
|
|
|
var _this = {};
|
|
|
|
var getRsBlockTable = function(typeNumber, errorCorrectionLevel) {
|
|
|
|
switch(errorCorrectionLevel) {
|
|
case QRErrorCorrectionLevel.L :
|
|
return RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 0];
|
|
case QRErrorCorrectionLevel.M :
|
|
return RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 1];
|
|
case QRErrorCorrectionLevel.Q :
|
|
return RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 2];
|
|
case QRErrorCorrectionLevel.H :
|
|
return RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 3];
|
|
default :
|
|
return undefined;
|
|
}
|
|
};
|
|
|
|
_this.getRSBlocks = function(typeNumber, errorCorrectionLevel) {
|
|
|
|
var rsBlock = getRsBlockTable(typeNumber, errorCorrectionLevel);
|
|
|
|
if (typeof rsBlock == 'undefined') {
|
|
throw 'bad rs block @ typeNumber:' + typeNumber +
|
|
'/errorCorrectionLevel:' + errorCorrectionLevel;
|
|
}
|
|
|
|
var length = rsBlock.length / 3;
|
|
|
|
var list = [];
|
|
|
|
for (var i = 0; i < length; i += 1) {
|
|
|
|
var count = rsBlock[i * 3 + 0];
|
|
var totalCount = rsBlock[i * 3 + 1];
|
|
var dataCount = rsBlock[i * 3 + 2];
|
|
|
|
for (var j = 0; j < count; j += 1) {
|
|
list.push(qrRSBlock(totalCount, dataCount) );
|
|
}
|
|
}
|
|
|
|
return list;
|
|
};
|
|
|
|
return _this;
|
|
}();
|
|
|
|
//---------------------------------------------------------------------
|
|
// qrBitBuffer
|
|
//---------------------------------------------------------------------
|
|
|
|
var qrBitBuffer = function() {
|
|
|
|
var _buffer = [];
|
|
var _length = 0;
|
|
|
|
var _this = {};
|
|
|
|
_this.getBuffer = function() {
|
|
return _buffer;
|
|
};
|
|
|
|
_this.getAt = function(index) {
|
|
var bufIndex = Math.floor(index / 8);
|
|
return ( (_buffer[bufIndex] >>> (7 - index % 8) ) & 1) == 1;
|
|
};
|
|
|
|
_this.put = function(num, length) {
|
|
for (var i = 0; i < length; i += 1) {
|
|
_this.putBit( ( (num >>> (length - i - 1) ) & 1) == 1);
|
|
}
|
|
};
|
|
|
|
_this.getLengthInBits = function() {
|
|
return _length;
|
|
};
|
|
|
|
_this.putBit = function(bit) {
|
|
|
|
var bufIndex = Math.floor(_length / 8);
|
|
if (_buffer.length <= bufIndex) {
|
|
_buffer.push(0);
|
|
}
|
|
|
|
if (bit) {
|
|
_buffer[bufIndex] |= (0x80 >>> (_length % 8) );
|
|
}
|
|
|
|
_length += 1;
|
|
};
|
|
|
|
return _this;
|
|
};
|
|
|
|
//---------------------------------------------------------------------
|
|
// qrNumber
|
|
//---------------------------------------------------------------------
|
|
|
|
var qrNumber = function(data) {
|
|
|
|
var _mode = QRMode.MODE_NUMBER;
|
|
var _data = data;
|
|
|
|
var _this = {};
|
|
|
|
_this.getMode = function() {
|
|
return _mode;
|
|
};
|
|
|
|
_this.getLength = function(buffer) {
|
|
return _data.length;
|
|
};
|
|
|
|
_this.write = function(buffer) {
|
|
|
|
var data = _data;
|
|
|
|
var i = 0;
|
|
|
|
while (i + 2 < data.length) {
|
|
buffer.put(strToNum(data.substring(i, i + 3) ), 10);
|
|
i += 3;
|
|
}
|
|
|
|
if (i < data.length) {
|
|
if (data.length - i == 1) {
|
|
buffer.put(strToNum(data.substring(i, i + 1) ), 4);
|
|
} else if (data.length - i == 2) {
|
|
buffer.put(strToNum(data.substring(i, i + 2) ), 7);
|
|
}
|
|
}
|
|
};
|
|
|
|
var strToNum = function(s) {
|
|
var num = 0;
|
|
for (var i = 0; i < s.length; i += 1) {
|
|
num = num * 10 + chatToNum(s.charAt(i) );
|
|
}
|
|
return num;
|
|
};
|
|
|
|
var chatToNum = function(c) {
|
|
if ('0' <= c && c <= '9') {
|
|
return c.charCodeAt(0) - '0'.charCodeAt(0);
|
|
}
|
|
throw 'illegal char :' + c;
|
|
};
|
|
|
|
return _this;
|
|
};
|
|
|
|
//---------------------------------------------------------------------
|
|
// qrAlphaNum
|
|
//---------------------------------------------------------------------
|
|
|
|
var qrAlphaNum = function(data) {
|
|
|
|
var _mode = QRMode.MODE_ALPHA_NUM;
|
|
var _data = data;
|
|
|
|
var _this = {};
|
|
|
|
_this.getMode = function() {
|
|
return _mode;
|
|
};
|
|
|
|
_this.getLength = function(buffer) {
|
|
return _data.length;
|
|
};
|
|
|
|
_this.write = function(buffer) {
|
|
|
|
var s = _data;
|
|
|
|
var i = 0;
|
|
|
|
while (i + 1 < s.length) {
|
|
buffer.put(
|
|
getCode(s.charAt(i) ) * 45 +
|
|
getCode(s.charAt(i + 1) ), 11);
|
|
i += 2;
|
|
}
|
|
|
|
if (i < s.length) {
|
|
buffer.put(getCode(s.charAt(i) ), 6);
|
|
}
|
|
};
|
|
|
|
var getCode = function(c) {
|
|
|
|
if ('0' <= c && c <= '9') {
|
|
return c.charCodeAt(0) - '0'.charCodeAt(0);
|
|
} else if ('A' <= c && c <= 'Z') {
|
|
return c.charCodeAt(0) - 'A'.charCodeAt(0) + 10;
|
|
} else {
|
|
switch (c) {
|
|
case ' ' : return 36;
|
|
case '$' : return 37;
|
|
case '%' : return 38;
|
|
case '*' : return 39;
|
|
case '+' : return 40;
|
|
case '-' : return 41;
|
|
case '.' : return 42;
|
|
case '/' : return 43;
|
|
case ':' : return 44;
|
|
default :
|
|
throw 'illegal char :' + c;
|
|
}
|
|
}
|
|
};
|
|
|
|
return _this;
|
|
};
|
|
|
|
//---------------------------------------------------------------------
|
|
// qr8BitByte
|
|
//---------------------------------------------------------------------
|
|
|
|
var qr8BitByte = function(data) {
|
|
|
|
var _mode = QRMode.MODE_8BIT_BYTE;
|
|
var _data = data;
|
|
var _bytes = qrcode.stringToBytes(data);
|
|
|
|
var _this = {};
|
|
|
|
_this.getMode = function() {
|
|
return _mode;
|
|
};
|
|
|
|
_this.getLength = function(buffer) {
|
|
return _bytes.length;
|
|
};
|
|
|
|
_this.write = function(buffer) {
|
|
for (var i = 0; i < _bytes.length; i += 1) {
|
|
buffer.put(_bytes[i], 8);
|
|
}
|
|
};
|
|
|
|
return _this;
|
|
};
|
|
|
|
//---------------------------------------------------------------------
|
|
// qrKanji
|
|
//---------------------------------------------------------------------
|
|
|
|
var qrKanji = function(data) {
|
|
|
|
var _mode = QRMode.MODE_KANJI;
|
|
var _data = data;
|
|
|
|
var stringToBytes = qrcode.stringToBytesFuncs['SJIS'];
|
|
if (!stringToBytes) {
|
|
throw 'sjis not supported.';
|
|
}
|
|
!function(c, code) {
|
|
// self test for sjis support.
|
|
var test = stringToBytes(c);
|
|
if (test.length != 2 || ( (test[0] << 8) | test[1]) != code) {
|
|
throw 'sjis not supported.';
|
|
}
|
|
}('\u53cb', 0x9746);
|
|
|
|
var _bytes = stringToBytes(data);
|
|
|
|
var _this = {};
|
|
|
|
_this.getMode = function() {
|
|
return _mode;
|
|
};
|
|
|
|
_this.getLength = function(buffer) {
|
|
return ~~(_bytes.length / 2);
|
|
};
|
|
|
|
_this.write = function(buffer) {
|
|
|
|
var data = _bytes;
|
|
|
|
var i = 0;
|
|
|
|
while (i + 1 < data.length) {
|
|
|
|
var c = ( (0xff & data[i]) << 8) | (0xff & data[i + 1]);
|
|
|
|
if (0x8140 <= c && c <= 0x9FFC) {
|
|
c -= 0x8140;
|
|
} else if (0xE040 <= c && c <= 0xEBBF) {
|
|
c -= 0xC140;
|
|
} else {
|
|
throw 'illegal char at ' + (i + 1) + '/' + c;
|
|
}
|
|
|
|
c = ( (c >>> 8) & 0xff) * 0xC0 + (c & 0xff);
|
|
|
|
buffer.put(c, 13);
|
|
|
|
i += 2;
|
|
}
|
|
|
|
if (i < data.length) {
|
|
throw 'illegal char at ' + (i + 1);
|
|
}
|
|
};
|
|
|
|
return _this;
|
|
};
|
|
|
|
//=====================================================================
|
|
// GIF Support etc.
|
|
//
|
|
|
|
//---------------------------------------------------------------------
|
|
// byteArrayOutputStream
|
|
//---------------------------------------------------------------------
|
|
|
|
var byteArrayOutputStream = function() {
|
|
|
|
var _bytes = [];
|
|
|
|
var _this = {};
|
|
|
|
_this.writeByte = function(b) {
|
|
_bytes.push(b & 0xff);
|
|
};
|
|
|
|
_this.writeShort = function(i) {
|
|
_this.writeByte(i);
|
|
_this.writeByte(i >>> 8);
|
|
};
|
|
|
|
_this.writeBytes = function(b, off, len) {
|
|
off = off || 0;
|
|
len = len || b.length;
|
|
for (var i = 0; i < len; i += 1) {
|
|
_this.writeByte(b[i + off]);
|
|
}
|
|
};
|
|
|
|
_this.writeString = function(s) {
|
|
for (var i = 0; i < s.length; i += 1) {
|
|
_this.writeByte(s.charCodeAt(i) );
|
|
}
|
|
};
|
|
|
|
_this.toByteArray = function() {
|
|
return _bytes;
|
|
};
|
|
|
|
_this.toString = function() {
|
|
var s = '';
|
|
s += '[';
|
|
for (var i = 0; i < _bytes.length; i += 1) {
|
|
if (i > 0) {
|
|
s += ',';
|
|
}
|
|
s += _bytes[i];
|
|
}
|
|
s += ']';
|
|
return s;
|
|
};
|
|
|
|
return _this;
|
|
};
|
|
|
|
//---------------------------------------------------------------------
|
|
// base64EncodeOutputStream
|
|
//---------------------------------------------------------------------
|
|
|
|
var base64EncodeOutputStream = function() {
|
|
|
|
var _buffer = 0;
|
|
var _buflen = 0;
|
|
var _length = 0;
|
|
var _base64 = '';
|
|
|
|
var _this = {};
|
|
|
|
var writeEncoded = function(b) {
|
|
_base64 += String.fromCharCode(encode(b & 0x3f) );
|
|
};
|
|
|
|
var encode = function(n) {
|
|
if (n < 0) {
|
|
// error.
|
|
} else if (n < 26) {
|
|
return 0x41 + n;
|
|
} else if (n < 52) {
|
|
return 0x61 + (n - 26);
|
|
} else if (n < 62) {
|
|
return 0x30 + (n - 52);
|
|
} else if (n == 62) {
|
|
return 0x2b;
|
|
} else if (n == 63) {
|
|
return 0x2f;
|
|
}
|
|
throw 'n:' + n;
|
|
};
|
|
|
|
_this.writeByte = function(n) {
|
|
|
|
_buffer = (_buffer << 8) | (n & 0xff);
|
|
_buflen += 8;
|
|
_length += 1;
|
|
|
|
while (_buflen >= 6) {
|
|
writeEncoded(_buffer >>> (_buflen - 6) );
|
|
_buflen -= 6;
|
|
}
|
|
};
|
|
|
|
_this.flush = function() {
|
|
|
|
if (_buflen > 0) {
|
|
writeEncoded(_buffer << (6 - _buflen) );
|
|
_buffer = 0;
|
|
_buflen = 0;
|
|
}
|
|
|
|
if (_length % 3 != 0) {
|
|
// padding
|
|
var padlen = 3 - _length % 3;
|
|
for (var i = 0; i < padlen; i += 1) {
|
|
_base64 += '=';
|
|
}
|
|
}
|
|
};
|
|
|
|
_this.toString = function() {
|
|
return _base64;
|
|
};
|
|
|
|
return _this;
|
|
};
|
|
|
|
//---------------------------------------------------------------------
|
|
// base64DecodeInputStream
|
|
//---------------------------------------------------------------------
|
|
|
|
var base64DecodeInputStream = function(str) {
|
|
|
|
var _str = str;
|
|
var _pos = 0;
|
|
var _buffer = 0;
|
|
var _buflen = 0;
|
|
|
|
var _this = {};
|
|
|
|
_this.read = function() {
|
|
|
|
while (_buflen < 8) {
|
|
|
|
if (_pos >= _str.length) {
|
|
if (_buflen == 0) {
|
|
return -1;
|
|
}
|
|
throw 'unexpected end of file./' + _buflen;
|
|
}
|
|
|
|
var c = _str.charAt(_pos);
|
|
_pos += 1;
|
|
|
|
if (c == '=') {
|
|
_buflen = 0;
|
|
return -1;
|
|
} else if (c.match(/^\s$/) ) {
|
|
// ignore if whitespace.
|
|
continue;
|
|
}
|
|
|
|
_buffer = (_buffer << 6) | decode(c.charCodeAt(0) );
|
|
_buflen += 6;
|
|
}
|
|
|
|
var n = (_buffer >>> (_buflen - 8) ) & 0xff;
|
|
_buflen -= 8;
|
|
return n;
|
|
};
|
|
|
|
var decode = function(c) {
|
|
if (0x41 <= c && c <= 0x5a) {
|
|
return c - 0x41;
|
|
} else if (0x61 <= c && c <= 0x7a) {
|
|
return c - 0x61 + 26;
|
|
} else if (0x30 <= c && c <= 0x39) {
|
|
return c - 0x30 + 52;
|
|
} else if (c == 0x2b) {
|
|
return 62;
|
|
} else if (c == 0x2f) {
|
|
return 63;
|
|
} else {
|
|
throw 'c:' + c;
|
|
}
|
|
};
|
|
|
|
return _this;
|
|
};
|
|
|
|
//---------------------------------------------------------------------
|
|
// gifImage (B/W)
|
|
//---------------------------------------------------------------------
|
|
|
|
var gifImage = function(width, height) {
|
|
|
|
var _width = width;
|
|
var _height = height;
|
|
var _data = new Array(width * height);
|
|
|
|
var _this = {};
|
|
|
|
_this.setPixel = function(x, y, pixel) {
|
|
_data[y * _width + x] = pixel;
|
|
};
|
|
|
|
_this.write = function(out) {
|
|
|
|
//---------------------------------
|
|
// GIF Signature
|
|
|
|
out.writeString('GIF87a');
|
|
|
|
//---------------------------------
|
|
// Screen Descriptor
|
|
|
|
out.writeShort(_width);
|
|
out.writeShort(_height);
|
|
|
|
out.writeByte(0x80); // 2bit
|
|
out.writeByte(0);
|
|
out.writeByte(0);
|
|
|
|
//---------------------------------
|
|
// Global Color Map
|
|
|
|
// black
|
|
out.writeByte(0x00);
|
|
out.writeByte(0x00);
|
|
out.writeByte(0x00);
|
|
|
|
// white
|
|
out.writeByte(0xff);
|
|
out.writeByte(0xff);
|
|
out.writeByte(0xff);
|
|
|
|
//---------------------------------
|
|
// Image Descriptor
|
|
|
|
out.writeString(',');
|
|
out.writeShort(0);
|
|
out.writeShort(0);
|
|
out.writeShort(_width);
|
|
out.writeShort(_height);
|
|
out.writeByte(0);
|
|
|
|
//---------------------------------
|
|
// Local Color Map
|
|
|
|
//---------------------------------
|
|
// Raster Data
|
|
|
|
var lzwMinCodeSize = 2;
|
|
var raster = getLZWRaster(lzwMinCodeSize);
|
|
|
|
out.writeByte(lzwMinCodeSize);
|
|
|
|
var offset = 0;
|
|
|
|
while (raster.length - offset > 255) {
|
|
out.writeByte(255);
|
|
out.writeBytes(raster, offset, 255);
|
|
offset += 255;
|
|
}
|
|
|
|
out.writeByte(raster.length - offset);
|
|
out.writeBytes(raster, offset, raster.length - offset);
|
|
out.writeByte(0x00);
|
|
|
|
//---------------------------------
|
|
// GIF Terminator
|
|
out.writeString(';');
|
|
};
|
|
|
|
var bitOutputStream = function(out) {
|
|
|
|
var _out = out;
|
|
var _bitLength = 0;
|
|
var _bitBuffer = 0;
|
|
|
|
var _this = {};
|
|
|
|
_this.write = function(data, length) {
|
|
|
|
if ( (data >>> length) != 0) {
|
|
throw 'length over';
|
|
}
|
|
|
|
while (_bitLength + length >= 8) {
|
|
_out.writeByte(0xff & ( (data << _bitLength) | _bitBuffer) );
|
|
length -= (8 - _bitLength);
|
|
data >>>= (8 - _bitLength);
|
|
_bitBuffer = 0;
|
|
_bitLength = 0;
|
|
}
|
|
|
|
_bitBuffer = (data << _bitLength) | _bitBuffer;
|
|
_bitLength = _bitLength + length;
|
|
};
|
|
|
|
_this.flush = function() {
|
|
if (_bitLength > 0) {
|
|
_out.writeByte(_bitBuffer);
|
|
}
|
|
};
|
|
|
|
return _this;
|
|
};
|
|
|
|
var getLZWRaster = function(lzwMinCodeSize) {
|
|
|
|
var clearCode = 1 << lzwMinCodeSize;
|
|
var endCode = (1 << lzwMinCodeSize) + 1;
|
|
var bitLength = lzwMinCodeSize + 1;
|
|
|
|
// Setup LZWTable
|
|
var table = lzwTable();
|
|
|
|
for (var i = 0; i < clearCode; i += 1) {
|
|
table.add(String.fromCharCode(i) );
|
|
}
|
|
table.add(String.fromCharCode(clearCode) );
|
|
table.add(String.fromCharCode(endCode) );
|
|
|
|
var byteOut = byteArrayOutputStream();
|
|
var bitOut = bitOutputStream(byteOut);
|
|
|
|
// clear code
|
|
bitOut.write(clearCode, bitLength);
|
|
|
|
var dataIndex = 0;
|
|
|
|
var s = String.fromCharCode(_data[dataIndex]);
|
|
dataIndex += 1;
|
|
|
|
while (dataIndex < _data.length) {
|
|
|
|
var c = String.fromCharCode(_data[dataIndex]);
|
|
dataIndex += 1;
|
|
|
|
if (table.contains(s + c) ) {
|
|
|
|
s = s + c;
|
|
|
|
} else {
|
|
|
|
bitOut.write(table.indexOf(s), bitLength);
|
|
|
|
if (table.size() < 0xfff) {
|
|
|
|
if (table.size() == (1 << bitLength) ) {
|
|
bitLength += 1;
|
|
}
|
|
|
|
table.add(s + c);
|
|
}
|
|
|
|
s = c;
|
|
}
|
|
}
|
|
|
|
bitOut.write(table.indexOf(s), bitLength);
|
|
|
|
// end code
|
|
bitOut.write(endCode, bitLength);
|
|
|
|
bitOut.flush();
|
|
|
|
return byteOut.toByteArray();
|
|
};
|
|
|
|
var lzwTable = function() {
|
|
|
|
var _map = {};
|
|
var _size = 0;
|
|
|
|
var _this = {};
|
|
|
|
_this.add = function(key) {
|
|
if (_this.contains(key) ) {
|
|
throw 'dup key:' + key;
|
|
}
|
|
_map[key] = _size;
|
|
_size += 1;
|
|
};
|
|
|
|
_this.size = function() {
|
|
return _size;
|
|
};
|
|
|
|
_this.indexOf = function(key) {
|
|
return _map[key];
|
|
};
|
|
|
|
_this.contains = function(key) {
|
|
return typeof _map[key] != 'undefined';
|
|
};
|
|
|
|
return _this;
|
|
};
|
|
|
|
return _this;
|
|
};
|
|
|
|
var createDataURL = function(width, height, getPixel) {
|
|
var gif = gifImage(width, height);
|
|
for (var y = 0; y < height; y += 1) {
|
|
for (var x = 0; x < width; x += 1) {
|
|
gif.setPixel(x, y, getPixel(x, y) );
|
|
}
|
|
}
|
|
|
|
var b = byteArrayOutputStream();
|
|
gif.write(b);
|
|
|
|
var base64 = base64EncodeOutputStream();
|
|
var bytes = b.toByteArray();
|
|
for (var i = 0; i < bytes.length; i += 1) {
|
|
base64.writeByte(bytes[i]);
|
|
}
|
|
base64.flush();
|
|
|
|
return 'data:image/gif;base64,' + base64;
|
|
};
|
|
|
|
//---------------------------------------------------------------------
|
|
// returns qrcode function.
|
|
|
|
return qrcode;
|
|
}();
|
|
|
|
// multibyte support
|
|
!function() {
|
|
|
|
qrcode.stringToBytesFuncs['UTF-8'] = function(s) {
|
|
// http://stackoverflow.com/questions/18729405/how-to-convert-utf8-string-to-byte-array
|
|
function toUTF8Array(str) {
|
|
var utf8 = [];
|
|
for (var i=0; i < str.length; i++) {
|
|
var charcode = str.charCodeAt(i);
|
|
if (charcode < 0x80) utf8.push(charcode);
|
|
else if (charcode < 0x800) {
|
|
utf8.push(0xc0 | (charcode >> 6),
|
|
0x80 | (charcode & 0x3f));
|
|
}
|
|
else if (charcode < 0xd800 || charcode >= 0xe000) {
|
|
utf8.push(0xe0 | (charcode >> 12),
|
|
0x80 | ((charcode>>6) & 0x3f),
|
|
0x80 | (charcode & 0x3f));
|
|
}
|
|
// surrogate pair
|
|
else {
|
|
i++;
|
|
// UTF-16 encodes 0x10000-0x10FFFF by
|
|
// subtracting 0x10000 and splitting the
|
|
// 20 bits of 0x0-0xFFFFF into two halves
|
|
charcode = 0x10000 + (((charcode & 0x3ff)<<10)
|
|
| (str.charCodeAt(i) & 0x3ff));
|
|
utf8.push(0xf0 | (charcode >>18),
|
|
0x80 | ((charcode>>12) & 0x3f),
|
|
0x80 | ((charcode>>6) & 0x3f),
|
|
0x80 | (charcode & 0x3f));
|
|
}
|
|
}
|
|
return utf8;
|
|
}
|
|
return toUTF8Array(s);
|
|
};
|
|
|
|
}();
|
|
|
|
(function (factory) {
|
|
if (typeof define === 'function' && define.amd) {
|
|
define([], factory);
|
|
} else if (typeof exports === 'object') {
|
|
module.exports = factory();
|
|
}
|
|
}(function () {
|
|
return qrcode;
|
|
}));
|