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1382 lines
30 KiB
1382 lines
30 KiB
//--------------------------------------------------------------------- |
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// github https://github.com/Sansnn/uQRCode |
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//--------------------------------------------------------------------- |
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let uQRCode = {}; |
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(function() { |
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//--------------------------------------------------------------------- |
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// QRCode 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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//--------------------------------------------------------------------- |
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// QR8bitByte |
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//--------------------------------------------------------------------- |
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function QR8bitByte(data) { |
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this.mode = QRMode.MODE_8BIT_BYTE; |
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this.data = data; |
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} |
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QR8bitByte.prototype = { |
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getLength: function(buffer) { |
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return this.data.length; |
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}, |
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write: function(buffer) { |
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for (var i = 0; i < this.data.length; i++) { |
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// not JIS ... |
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buffer.put(this.data.charCodeAt(i), 8); |
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} |
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} |
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}; |
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//--------------------------------------------------------------------- |
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// QRCode |
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//--------------------------------------------------------------------- |
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function QRCode(typeNumber, errorCorrectLevel) { |
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this.typeNumber = typeNumber; |
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this.errorCorrectLevel = errorCorrectLevel; |
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this.modules = null; |
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this.moduleCount = 0; |
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this.dataCache = null; |
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this.dataList = new Array(); |
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} |
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QRCode.prototype = { |
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addData: function(data) { |
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var newData = new QR8bitByte(data); |
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this.dataList.push(newData); |
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this.dataCache = null; |
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}, |
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isDark: function(row, col) { |
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if (row < 0 || this.moduleCount <= row || col < 0 || this.moduleCount <= col) { |
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throw new Error(row + "," + col); |
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} |
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return this.modules[row][col]; |
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}, |
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getModuleCount: function() { |
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return this.moduleCount; |
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}, |
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make: function() { |
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// Calculate automatically typeNumber if provided is < 1 |
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if (this.typeNumber < 1) { |
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var typeNumber = 1; |
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for (typeNumber = 1; typeNumber < 40; typeNumber++) { |
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var rsBlocks = QRRSBlock.getRSBlocks(typeNumber, this.errorCorrectLevel); |
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var buffer = new QRBitBuffer(); |
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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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for (var i = 0; i < this.dataList.length; i++) { |
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var data = this.dataList[i]; |
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buffer.put(data.mode, 4); |
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buffer.put(data.getLength(), QRUtil.getLengthInBits(data.mode, typeNumber)); |
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data.write(buffer); |
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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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this.typeNumber = typeNumber; |
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} |
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this.makeImpl(false, this.getBestMaskPattern()); |
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}, |
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makeImpl: function(test, maskPattern) { |
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this.moduleCount = this.typeNumber * 4 + 17; |
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this.modules = new Array(this.moduleCount); |
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for (var row = 0; row < this.moduleCount; row++) { |
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this.modules[row] = new Array(this.moduleCount); |
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for (var col = 0; col < this.moduleCount; col++) { |
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this.modules[row][col] = null; //(col + row) % 3; |
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} |
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} |
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this.setupPositionProbePattern(0, 0); |
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this.setupPositionProbePattern(this.moduleCount - 7, 0); |
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this.setupPositionProbePattern(0, this.moduleCount - 7); |
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this.setupPositionAdjustPattern(); |
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this.setupTimingPattern(); |
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this.setupTypeInfo(test, maskPattern); |
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if (this.typeNumber >= 7) { |
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this.setupTypeNumber(test); |
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} |
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if (this.dataCache == null) { |
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this.dataCache = QRCode.createData(this.typeNumber, this.errorCorrectLevel, this.dataList); |
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} |
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this.mapData(this.dataCache, maskPattern); |
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}, |
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setupPositionProbePattern: function(row, col) { |
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for (var r = -1; r <= 7; r++) { |
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if (row + r <= -1 || this.moduleCount <= row + r) continue; |
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for (var c = -1; c <= 7; c++) { |
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if (col + c <= -1 || this.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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this.modules[row + r][col + c] = true; |
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} else { |
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this.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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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++) { |
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this.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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createMovieClip: function(target_mc, instance_name, depth) { |
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var qr_mc = target_mc.createEmptyMovieClip(instance_name, depth); |
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var cs = 1; |
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this.make(); |
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for (var row = 0; row < this.modules.length; row++) { |
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var y = row * cs; |
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for (var col = 0; col < this.modules[row].length; col++) { |
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var x = col * cs; |
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var dark = this.modules[row][col]; |
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if (dark) { |
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qr_mc.beginFill(0, 100); |
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qr_mc.moveTo(x, y); |
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qr_mc.lineTo(x + cs, y); |
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qr_mc.lineTo(x + cs, y + cs); |
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qr_mc.lineTo(x, y + cs); |
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qr_mc.endFill(); |
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} |
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} |
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} |
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return qr_mc; |
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}, |
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setupTimingPattern: function() { |
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for (var r = 8; r < this.moduleCount - 8; r++) { |
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if (this.modules[r][6] != null) { |
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continue; |
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} |
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this.modules[r][6] = (r % 2 == 0); |
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} |
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for (var c = 8; c < this.moduleCount - 8; c++) { |
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if (this.modules[6][c] != null) { |
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continue; |
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} |
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this.modules[6][c] = (c % 2 == 0); |
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} |
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}, |
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setupPositionAdjustPattern: function() { |
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var pos = QRUtil.getPatternPosition(this.typeNumber); |
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for (var i = 0; i < pos.length; i++) { |
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for (var j = 0; j < pos.length; j++) { |
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var row = pos[i]; |
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var col = pos[j]; |
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if (this.modules[row][col] != null) { |
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continue; |
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} |
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for (var r = -2; r <= 2; r++) { |
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for (var c = -2; c <= 2; c++) { |
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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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this.modules[row + r][col + c] = true; |
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} else { |
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this.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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setupTypeNumber: function(test) { |
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var bits = QRUtil.getBCHTypeNumber(this.typeNumber); |
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for (var i = 0; i < 18; i++) { |
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var mod = (!test && ((bits >> i) & 1) == 1); |
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this.modules[Math.floor(i / 3)][i % 3 + this.moduleCount - 8 - 3] = mod; |
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} |
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for (var i = 0; i < 18; i++) { |
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var mod = (!test && ((bits >> i) & 1) == 1); |
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this.modules[i % 3 + this.moduleCount - 8 - 3][Math.floor(i / 3)] = mod; |
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} |
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}, |
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setupTypeInfo: function(test, maskPattern) { |
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var data = (this.errorCorrectLevel << 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++) { |
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var mod = (!test && ((bits >> i) & 1) == 1); |
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if (i < 6) { |
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this.modules[i][8] = mod; |
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} else if (i < 8) { |
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this.modules[i + 1][8] = mod; |
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} else { |
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this.modules[this.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++) { |
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var mod = (!test && ((bits >> i) & 1) == 1); |
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if (i < 8) { |
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this.modules[8][this.moduleCount - i - 1] = mod; |
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} else if (i < 9) { |
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this.modules[8][15 - i - 1 + 1] = mod; |
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} else { |
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this.modules[8][15 - i - 1] = mod; |
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} |
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} |
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// fixed module |
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this.modules[this.moduleCount - 8][8] = (!test); |
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}, |
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mapData: function(data, maskPattern) { |
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var inc = -1; |
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var row = this.moduleCount - 1; |
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var bitIndex = 7; |
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var byteIndex = 0; |
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for (var col = this.moduleCount - 1; col > 0; col -= 2) { |
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if (col == 6) col--; |
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while (true) { |
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for (var c = 0; c < 2; c++) { |
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if (this.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 = QRUtil.getMask(maskPattern, row, col - c); |
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if (mask) { |
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dark = !dark; |
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} |
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this.modules[row][col - c] = dark; |
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bitIndex--; |
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if (bitIndex == -1) { |
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byteIndex++; |
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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 || this.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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}; |
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QRCode.PAD0 = 0xEC; |
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QRCode.PAD1 = 0x11; |
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QRCode.createData = function(typeNumber, errorCorrectLevel, dataList) { |
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var rsBlocks = QRRSBlock.getRSBlocks(typeNumber, errorCorrectLevel); |
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var buffer = new 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.mode, 4); |
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buffer.put(data.getLength(), QRUtil.getLengthInBits(data.mode, 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++) { |
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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 new Error("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(QRCode.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(QRCode.PAD1, 8); |
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} |
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return QRCode.createBytes(buffer, rsBlocks); |
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} |
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QRCode.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++) { |
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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++) { |
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dcdata[r][i] = 0xff & buffer.buffer[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 = new 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++) { |
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var modIndex = i + modPoly.getLength() - ecdata[r].length; |
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ecdata[r][i] = (modIndex >= 0) ? modPoly.get(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++) { |
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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++) { |
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for (var r = 0; r < rsBlocks.length; r++) { |
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if (i < dcdata[r].length) { |
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data[index++] = dcdata[r][i]; |
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} |
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} |
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} |
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for (var i = 0; i < maxEcCount; i++) { |
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for (var r = 0; r < rsBlocks.length; r++) { |
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if (i < ecdata[r].length) { |
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data[index++] = ecdata[r][i]; |
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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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//--------------------------------------------------------------------- |
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// QRMode |
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//--------------------------------------------------------------------- |
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var QRMode = { |
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MODE_NUMBER: 1 << 0, |
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MODE_ALPHA_NUM: 1 << 1, |
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MODE_8BIT_BYTE: 1 << 2, |
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MODE_KANJI: 1 << 3 |
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}; |
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//--------------------------------------------------------------------- |
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// QRErrorCorrectLevel |
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//--------------------------------------------------------------------- |
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var QRErrorCorrectLevel = { |
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L: 1, |
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M: 0, |
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Q: 3, |
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H: 2 |
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}; |
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//--------------------------------------------------------------------- |
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// QRMaskPattern |
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//--------------------------------------------------------------------- |
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var QRMaskPattern = { |
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PATTERN000: 0, |
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PATTERN001: 1, |
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PATTERN010: 2, |
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PATTERN011: 3, |
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PATTERN100: 4, |
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PATTERN101: 5, |
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PATTERN110: 6, |
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PATTERN111: 7 |
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}; |
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//--------------------------------------------------------------------- |
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// QRUtil |
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//--------------------------------------------------------------------- |
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var QRUtil = { |
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PATTERN_POSITION_TABLE: [ |
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[], |
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[6, 18], |
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[6, 22], |
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[6, 26], |
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[6, 30], |
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[6, 34], |
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[6, 22, 38], |
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[6, 24, 42], |
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[6, 26, 46], |
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[6, 28, 50], |
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[6, 30, 54], |
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[6, 32, 58], |
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[6, 34, 62], |
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[6, 26, 46, 66], |
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[6, 26, 48, 70], |
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[6, 26, 50, 74], |
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[6, 30, 54, 78], |
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[6, 30, 56, 82], |
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[6, 30, 58, 86], |
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[6, 34, 62, 90], |
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[6, 28, 50, 72, 94], |
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[6, 26, 50, 74, 98], |
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[6, 30, 54, 78, 102], |
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[6, 28, 54, 80, 106], |
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[6, 32, 58, 84, 110], |
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[6, 30, 58, 86, 114], |
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[6, 34, 62, 90, 118], |
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[6, 26, 50, 74, 98, 122], |
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[6, 30, 54, 78, 102, 126], |
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[6, 26, 52, 78, 104, 130], |
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[6, 30, 56, 82, 108, 134], |
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[6, 34, 60, 86, 112, 138], |
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[6, 30, 58, 86, 114, 142], |
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[6, 34, 62, 90, 118, 146], |
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[6, 30, 54, 78, 102, 126, 150], |
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[6, 24, 50, 76, 102, 128, 154], |
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[6, 28, 54, 80, 106, 132, 158], |
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[6, 32, 58, 84, 110, 136, 162], |
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[6, 26, 54, 82, 110, 138, 166], |
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[6, 30, 58, 86, 114, 142, 170] |
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], |
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G15: (1 << 10) | (1 << 8) | (1 << 5) | (1 << 4) | (1 << 2) | (1 << 1) | (1 << 0), |
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G18: (1 << 12) | (1 << 11) | (1 << 10) | (1 << 9) | (1 << 8) | (1 << 5) | (1 << 2) | (1 << 0), |
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G15_MASK: (1 << 14) | (1 << 12) | (1 << 10) | (1 << 4) | (1 << 1), |
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getBCHTypeInfo: function(data) { |
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var d = data << 10; |
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while (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G15) >= 0) { |
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d ^= (QRUtil.G15 << (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G15))); |
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} |
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return ((data << 10) | d) ^ QRUtil.G15_MASK; |
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}, |
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|
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getBCHTypeNumber: function(data) { |
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var d = data << 12; |
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while (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G18) >= 0) { |
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d ^= (QRUtil.G18 << (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G18))); |
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} |
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return (data << 12) | d; |
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}, |
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getBCHDigit: function(data) { |
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var digit = 0; |
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|
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while (data != 0) { |
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digit++; |
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data >>>= 1; |
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} |
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return digit; |
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}, |
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|
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getPatternPosition: function(typeNumber) { |
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return QRUtil.PATTERN_POSITION_TABLE[typeNumber - 1]; |
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}, |
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|
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getMask: function(maskPattern, i, j) { |
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|
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switch (maskPattern) { |
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|
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case QRMaskPattern.PATTERN000: |
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return (i + j) % 2 == 0; |
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case QRMaskPattern.PATTERN001: |
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return i % 2 == 0; |
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case QRMaskPattern.PATTERN010: |
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return j % 3 == 0; |
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case QRMaskPattern.PATTERN011: |
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return (i + j) % 3 == 0; |
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case QRMaskPattern.PATTERN100: |
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return (Math.floor(i / 2) + Math.floor(j / 3)) % 2 == 0; |
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case QRMaskPattern.PATTERN101: |
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return (i * j) % 2 + (i * j) % 3 == 0; |
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case QRMaskPattern.PATTERN110: |
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return ((i * j) % 2 + (i * j) % 3) % 2 == 0; |
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case QRMaskPattern.PATTERN111: |
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return ((i * j) % 3 + (i + j) % 2) % 2 == 0; |
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default: |
|
throw new Error("bad maskPattern:" + maskPattern); |
|
} |
|
}, |
|
|
|
getErrorCorrectPolynomial: function(errorCorrectLength) { |
|
|
|
var a = new QRPolynomial([1], 0); |
|
|
|
for (var i = 0; i < errorCorrectLength; i++) { |
|
a = a.multiply(new QRPolynomial([1, QRMath.gexp(i)], 0)); |
|
} |
|
|
|
return a; |
|
}, |
|
|
|
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 new Error("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 new Error("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 new Error("mode:" + mode); |
|
} |
|
|
|
} else { |
|
throw new Error("type:" + type); |
|
} |
|
}, |
|
|
|
getLostPoint: function(qrCode) { |
|
|
|
var moduleCount = qrCode.getModuleCount(); |
|
|
|
var lostPoint = 0; |
|
|
|
// LEVEL1 |
|
|
|
for (var row = 0; row < moduleCount; row++) { |
|
|
|
for (var col = 0; col < moduleCount; col++) { |
|
|
|
var sameCount = 0; |
|
var dark = qrCode.isDark(row, col); |
|
|
|
for (var r = -1; r <= 1; r++) { |
|
|
|
if (row + r < 0 || moduleCount <= row + r) { |
|
continue; |
|
} |
|
|
|
for (var c = -1; c <= 1; c++) { |
|
|
|
if (col + c < 0 || moduleCount <= col + c) { |
|
continue; |
|
} |
|
|
|
if (r == 0 && c == 0) { |
|
continue; |
|
} |
|
|
|
if (dark == qrCode.isDark(row + r, col + c)) { |
|
sameCount++; |
|
} |
|
} |
|
} |
|
|
|
if (sameCount > 5) { |
|
lostPoint += (3 + sameCount - 5); |
|
} |
|
} |
|
} |
|
|
|
// LEVEL2 |
|
|
|
for (var row = 0; row < moduleCount - 1; row++) { |
|
for (var col = 0; col < moduleCount - 1; col++) { |
|
var count = 0; |
|
if (qrCode.isDark(row, col)) count++; |
|
if (qrCode.isDark(row + 1, col)) count++; |
|
if (qrCode.isDark(row, col + 1)) count++; |
|
if (qrCode.isDark(row + 1, col + 1)) count++; |
|
if (count == 0 || count == 4) { |
|
lostPoint += 3; |
|
} |
|
} |
|
} |
|
|
|
// LEVEL3 |
|
|
|
for (var row = 0; row < moduleCount; row++) { |
|
for (var col = 0; col < moduleCount - 6; col++) { |
|
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++) { |
|
for (var row = 0; row < moduleCount - 6; row++) { |
|
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++) { |
|
for (var row = 0; row < moduleCount; row++) { |
|
if (qrCode.isDark(row, col)) { |
|
darkCount++; |
|
} |
|
} |
|
} |
|
|
|
var ratio = Math.abs(100 * darkCount / moduleCount / moduleCount - 50) / 5; |
|
lostPoint += ratio * 10; |
|
|
|
return lostPoint; |
|
} |
|
|
|
}; |
|
|
|
|
|
//--------------------------------------------------------------------- |
|
// QRMath |
|
//--------------------------------------------------------------------- |
|
|
|
var QRMath = { |
|
|
|
glog: function(n) { |
|
|
|
if (n < 1) { |
|
throw new Error("glog(" + n + ")"); |
|
} |
|
|
|
return QRMath.LOG_TABLE[n]; |
|
}, |
|
|
|
gexp: function(n) { |
|
|
|
while (n < 0) { |
|
n += 255; |
|
} |
|
|
|
while (n >= 256) { |
|
n -= 255; |
|
} |
|
|
|
return QRMath.EXP_TABLE[n]; |
|
}, |
|
|
|
EXP_TABLE: new Array(256), |
|
|
|
LOG_TABLE: new Array(256) |
|
|
|
}; |
|
|
|
for (var i = 0; i < 8; i++) { |
|
QRMath.EXP_TABLE[i] = 1 << i; |
|
} |
|
for (var i = 8; i < 256; i++) { |
|
QRMath.EXP_TABLE[i] = QRMath.EXP_TABLE[i - 4] ^ |
|
QRMath.EXP_TABLE[i - 5] ^ |
|
QRMath.EXP_TABLE[i - 6] ^ |
|
QRMath.EXP_TABLE[i - 8]; |
|
} |
|
for (var i = 0; i < 255; i++) { |
|
QRMath.LOG_TABLE[QRMath.EXP_TABLE[i]] = i; |
|
} |
|
|
|
//--------------------------------------------------------------------- |
|
// QRPolynomial |
|
//--------------------------------------------------------------------- |
|
|
|
function QRPolynomial(num, shift) { |
|
|
|
if (num.length == undefined) { |
|
throw new Error(num.length + "/" + shift); |
|
} |
|
|
|
var offset = 0; |
|
|
|
while (offset < num.length && num[offset] == 0) { |
|
offset++; |
|
} |
|
|
|
this.num = new Array(num.length - offset + shift); |
|
for (var i = 0; i < num.length - offset; i++) { |
|
this.num[i] = num[i + offset]; |
|
} |
|
} |
|
|
|
QRPolynomial.prototype = { |
|
|
|
get: function(index) { |
|
return this.num[index]; |
|
}, |
|
|
|
getLength: function() { |
|
return this.num.length; |
|
}, |
|
|
|
multiply: function(e) { |
|
|
|
var num = new Array(this.getLength() + e.getLength() - 1); |
|
|
|
for (var i = 0; i < this.getLength(); i++) { |
|
for (var j = 0; j < e.getLength(); j++) { |
|
num[i + j] ^= QRMath.gexp(QRMath.glog(this.get(i)) + QRMath.glog(e.get(j))); |
|
} |
|
} |
|
|
|
return new QRPolynomial(num, 0); |
|
}, |
|
|
|
mod: function(e) { |
|
|
|
if (this.getLength() - e.getLength() < 0) { |
|
return this; |
|
} |
|
|
|
var ratio = QRMath.glog(this.get(0)) - QRMath.glog(e.get(0)); |
|
|
|
var num = new Array(this.getLength()); |
|
|
|
for (var i = 0; i < this.getLength(); i++) { |
|
num[i] = this.get(i); |
|
} |
|
|
|
for (var i = 0; i < e.getLength(); i++) { |
|
num[i] ^= QRMath.gexp(QRMath.glog(e.get(i)) + ratio); |
|
} |
|
|
|
// recursive call |
|
return new QRPolynomial(num, 0).mod(e); |
|
} |
|
}; |
|
|
|
//--------------------------------------------------------------------- |
|
// QRRSBlock |
|
//--------------------------------------------------------------------- |
|
|
|
function QRRSBlock(totalCount, dataCount) { |
|
this.totalCount = totalCount; |
|
this.dataCount = dataCount; |
|
} |
|
|
|
QRRSBlock.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], |
|
|
|
// 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] |
|
]; |
|
|
|
QRRSBlock.getRSBlocks = function(typeNumber, errorCorrectLevel) { |
|
|
|
var rsBlock = QRRSBlock.getRsBlockTable(typeNumber, errorCorrectLevel); |
|
|
|
if (rsBlock == undefined) { |
|
throw new Error("bad rs block @ typeNumber:" + typeNumber + "/errorCorrectLevel:" + errorCorrectLevel); |
|
} |
|
|
|
var length = rsBlock.length / 3; |
|
|
|
var list = new Array(); |
|
|
|
for (var i = 0; i < length; i++) { |
|
|
|
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++) { |
|
list.push(new QRRSBlock(totalCount, dataCount)); |
|
} |
|
} |
|
|
|
return list; |
|
} |
|
|
|
QRRSBlock.getRsBlockTable = function(typeNumber, errorCorrectLevel) { |
|
|
|
switch (errorCorrectLevel) { |
|
case QRErrorCorrectLevel.L: |
|
return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 0]; |
|
case QRErrorCorrectLevel.M: |
|
return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 1]; |
|
case QRErrorCorrectLevel.Q: |
|
return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 2]; |
|
case QRErrorCorrectLevel.H: |
|
return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 3]; |
|
default: |
|
return undefined; |
|
} |
|
} |
|
|
|
//--------------------------------------------------------------------- |
|
// QRBitBuffer |
|
//--------------------------------------------------------------------- |
|
|
|
function QRBitBuffer() { |
|
this.buffer = new Array(); |
|
this.length = 0; |
|
} |
|
|
|
QRBitBuffer.prototype = { |
|
|
|
get: function(index) { |
|
var bufIndex = Math.floor(index / 8); |
|
return ((this.buffer[bufIndex] >>> (7 - index % 8)) & 1) == 1; |
|
}, |
|
|
|
put: function(num, length) { |
|
for (var i = 0; i < length; i++) { |
|
this.putBit(((num >>> (length - i - 1)) & 1) == 1); |
|
} |
|
}, |
|
|
|
getLengthInBits: function() { |
|
return this.length; |
|
}, |
|
|
|
putBit: function(bit) { |
|
|
|
var bufIndex = Math.floor(this.length / 8); |
|
if (this.buffer.length <= bufIndex) { |
|
this.buffer.push(0); |
|
} |
|
|
|
if (bit) { |
|
this.buffer[bufIndex] |= (0x80 >>> (this.length % 8)); |
|
} |
|
|
|
this.length++; |
|
} |
|
}; |
|
|
|
//--------------------------------------------------------------------- |
|
// Support Chinese |
|
//--------------------------------------------------------------------- |
|
function utf16To8(text) { |
|
var result = ''; |
|
var c; |
|
for (var i = 0; i < text.length; i++) { |
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c = text.charCodeAt(i); |
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if (c >= 0x0001 && c <= 0x007F) { |
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result += text.charAt(i); |
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} else if (c > 0x07FF) { |
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result += String.fromCharCode(0xE0 | c >> 12 & 0x0F); |
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result += String.fromCharCode(0x80 | c >> 6 & 0x3F); |
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result += String.fromCharCode(0x80 | c >> 0 & 0x3F); |
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} else { |
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result += String.fromCharCode(0xC0 | c >> 6 & 0x1F); |
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result += String.fromCharCode(0x80 | c >> 0 & 0x3F); |
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} |
|
} |
|
return result; |
|
} |
|
|
|
uQRCode = { |
|
|
|
errorCorrectLevel: QRErrorCorrectLevel, |
|
|
|
defaults: { |
|
size: 256, |
|
margin: 0, |
|
backgroundColor: '#ffffff', |
|
foregroundColor: '#000000', |
|
fileType: 'png', // 'jpg', 'png' |
|
errorCorrectLevel: QRErrorCorrectLevel.H, |
|
typeNumber: -1 |
|
}, |
|
|
|
make: function(options) { |
|
var defaultOptions = { |
|
canvasId: options.canvasId, |
|
componentInstance: options.componentInstance, |
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text: options.text, |
|
size: this.defaults.size, |
|
margin: this.defaults.margin, |
|
backgroundColor: this.defaults.backgroundColor, |
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foregroundColor: this.defaults.foregroundColor, |
|
fileType: this.defaults.fileType, |
|
errorCorrectLevel: this.defaults.errorCorrectLevel, |
|
typeNumber: this.defaults.typeNumber |
|
}; |
|
if (options) { |
|
for (var i in options) { |
|
defaultOptions[i] = options[i]; |
|
} |
|
} |
|
options = defaultOptions; |
|
if (!options.canvasId) { |
|
console.error('uQRCode: Please set canvasId!'); |
|
return; |
|
} |
|
|
|
function createCanvas() { |
|
var qrcode = new QRCode(options.typeNumber, options.errorCorrectLevel); |
|
qrcode.addData(utf16To8(options.text)); |
|
qrcode.make(); |
|
|
|
var ctx = uni.createCanvasContext(options.canvasId, options.componentInstance); |
|
ctx.setFillStyle(options.backgroundColor); |
|
ctx.fillRect(0, 0, options.size, options.size); |
|
|
|
var tileW = (options.size - options.margin * 2) / qrcode.getModuleCount(); |
|
var tileH = tileW; |
|
|
|
for (var row = 0; row < qrcode.getModuleCount(); row++) { |
|
for (var col = 0; col < qrcode.getModuleCount(); col++) { |
|
var style = qrcode.isDark(row, col) ? options.foregroundColor : options.backgroundColor; |
|
ctx.setFillStyle(style); |
|
var x = Math.round(col * tileW) + options.margin; |
|
var y = Math.round(row * tileH) + options.margin; |
|
var w = Math.ceil((col + 1) * tileW) - Math.floor(col * tileW); |
|
var h = Math.ceil((row + 1) * tileW) - Math.floor(row * tileW); |
|
ctx.fillRect(x, y, w, h); |
|
} |
|
} |
|
|
|
setTimeout(function() { |
|
ctx.draw(false, (function() { |
|
setTimeout(function() { |
|
uni.canvasToTempFilePath({ |
|
canvasId: options.canvasId, |
|
fileType: options.fileType, |
|
width: options.size, |
|
height: options.size, |
|
destWidth: options.size, |
|
destHeight: options.size, |
|
success: function(res) { |
|
options.success && options.success(res.tempFilePath); |
|
}, |
|
fail: function(error) { |
|
options.fail && options.fail(error); |
|
}, |
|
complete: function(res) { |
|
options.complete && options.complete(res); |
|
} |
|
}, options.componentInstance); |
|
}, options.text.length + 100); |
|
})()); |
|
}, 150); |
|
} |
|
|
|
createCanvas(); |
|
} |
|
|
|
} |
|
|
|
})() |
|
|
|
export default uQRCode
|
|
|