摘要:生成二维码的代码
生成二维码的JavaScript代码--qrcode.js
/*from tccdn minify at 2014-6-4 14:59:43,file:/cn/c/c/qrcode.js*/ /** * @fileoverview * - Using the "QRCode for Javascript library" * - Fixed dataset of "QRCode for Javascript library" for support full-spec. * - this library has no dependencies. * * @author davidshimjs * @see http://www.d-project.com/ * @see http://jeromeetienne.github.com/jquery-qrcode/ */ var QRCode; (function() { //--------------------------------------------------------------------- // QRCode for JavaScript // // Copyright (c) 2009 Kazuhiko Arase // // URL: http://www.d-project.com/ // // Licensed under the MIT license: // http://www.opensource.org/licenses/mit-license.php // // The word "QR Code" is registered trademark of // DENSO WAVE INCORPORATED // http://www.denso-wave.com/qrcode/faqpatent-e.html // //--------------------------------------------------------------------- function QR8bitByte(data) { this.mode = QRMode.MODE_8BIT_BYTE; this.data = data; this.parsedData = []; // Added to support UTF-8 Characters for(var i = 0, l = this.data.length; i < l; i++) { var byteArray = []; var code = this.data.charCodeAt(i); if(code > 0x10000) { byteArray[0] = 0xF0 | ((code & 0x1C0000) >>> 18); byteArray[1] = 0x80 | ((code & 0x3F000) >>> 12); byteArray[2] = 0x80 | ((code & 0xFC0) >>> 6); byteArray[3] = 0x80 | (code & 0x3F); } else if(code > 0x800) { byteArray[0] = 0xE0 | ((code & 0xF000) >>> 12); byteArray[1] = 0x80 | ((code & 0xFC0) >>> 6); byteArray[2] = 0x80 | (code & 0x3F); } else if(code > 0x80) { byteArray[0] = 0xC0 | ((code & 0x7C0) >>> 6); byteArray[1] = 0x80 | (code & 0x3F); } else { byteArray[0] = code; } this.parsedData.push(byteArray); } this.parsedData = Array.prototype.concat.apply([], this.parsedData); if(this.parsedData.length != this.data.length) { this.parsedData.unshift(191); this.parsedData.unshift(187); this.parsedData.unshift(239); } } QR8bitByte.prototype = { getLength: function(buffer) { return this.parsedData.length; }, write: function(buffer) { for(var i = 0, l = this.parsedData.length; i < l; i++) { buffer.put(this.parsedData[i], 8); } } }; function QRCodeModel(typeNumber, errorCorrectLevel) { this.typeNumber = typeNumber; this.errorCorrectLevel = errorCorrectLevel; this.modules = null; this.moduleCount = 0; this.dataCache = null; this.dataList = []; } 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]; } function QRRSBlock(totalCount, dataCount) { this.totalCount = totalCount, this.dataCount = dataCount; } function QRBitBuffer() { this.buffer = [], this.length = 0; } QRCodeModel.prototype = { "addData": function(data) { var newData = new QR8bitByte(data); this.dataList.push(newData), this.dataCache = null; }, "isDark": function(row, col) { if(row < 0 || this.moduleCount <= row || col < 0 || this.moduleCount <= col) throw new Error(row + "," + col); return this.modules[row][col]; }, "getModuleCount": function() { return this.moduleCount; }, "make": function() { this.makeImpl(!1, this.getBestMaskPattern()); }, "makeImpl": function(test, maskPattern) { this.moduleCount = this.typeNumber * 4 + 17, this.modules = new Array(this.moduleCount); for(var row = 0; row < this.moduleCount; row++) { this.modules[row] = new Array(this.moduleCount); for(var col = 0; col < this.moduleCount; col++) this.modules[row][col] = null; } this.setupPositionProbePattern(0, 0), this.setupPositionProbePattern(this.moduleCount - 7, 0), this.setupPositionProbePattern(0, this.moduleCount - 7), this.setupPositionAdjustPattern(), this.setupTimingPattern(), this.setupTypeInfo(test, maskPattern), this.typeNumber >= 7 && this.setupTypeNumber(test), this.dataCache == null && (this.dataCache = QRCodeModel.createData(this.typeNumber, this.errorCorrectLevel, this.dataList)), this.mapData(this.dataCache, maskPattern); }, "setupPositionProbePattern": function(row, col) { for(var r = -1; r <= 7; r++) { if(row + r <= -1 || this.moduleCount <= row + r) continue; for(var c = -1; c <= 7; c++) { if(col + c <= -1 || this.moduleCount <= col + c) continue; 0 <= r && r <= 6 && (c == 0 || c == 6) || 0 <= c && c <= 6 && (r == 0 || r == 6) || 2 <= r && r <= 4 && 2 <= c && c <= 4 ? this.modules[row + r][col + c] = !0 : this.modules[row + r][col + c] = !1; } } }, "getBestMaskPattern": function() { var minLostPoint = 0, pattern = 0; for(var i = 0; i < 8; i++) { this.makeImpl(!0, i); var lostPoint = QRUtil.getLostPoint(this); if(i == 0 || minLostPoint > lostPoint) minLostPoint = lostPoint, pattern = i; } return pattern; }, "createMovieClip": function(target_mc, instance_name, depth) { var qr_mc = target_mc.createEmptyMovieClip(instance_name, depth), cs = 1; this.make(); for(var row = 0; row < this.modules.length; row++) { var y = row * cs; for(var col = 0; col < this.modules[row].length; col++) { var x = col * cs, dark = this.modules[row][col]; dark && (qr_mc.beginFill(0, 100), qr_mc.moveTo(x, y), qr_mc.lineTo(x + cs, y), qr_mc.lineTo(x + cs, y + cs), qr_mc.lineTo(x, y + cs), qr_mc.endFill()); } } return qr_mc; }, "setupTimingPattern": function() { for(var r = 8; r < this.moduleCount - 8; r++) { if(this.modules[r][6] != null) continue; this.modules[r][6] = r % 2 == 0; } for(var c = 8; c < this.moduleCount - 8; c++) { if(this.modules[6][c] != null) continue; this.modules[6][c] = c % 2 == 0; } }, "setupPositionAdjustPattern": function() { var pos = QRUtil.getPatternPosition(this.typeNumber); for(var i = 0; i < pos.length; i++) for(var j = 0; j < pos.length; j++) { var row = pos[i], col = pos[j]; if(this.modules[row][col] != null) continue; for(var r = -2; r <= 2; r++) for(var c = -2; c <= 2; c++) r == -2 || r == 2 || c == -2 || c == 2 || r == 0 && c == 0 ? this.modules[row + r][col + c] = !0 : this.modules[row + r][col + c] = !1; } }, "setupTypeNumber": function(test) { var bits = QRUtil.getBCHTypeNumber(this.typeNumber); for(var i = 0; i < 18; i++) { var mod = !test && (bits >> i & 1) == 1; this.modules[Math.floor(i / 3)][i % 3 + this.moduleCount - 8 - 3] = mod; } for(var i = 0; i < 18; i++) { var mod = !test && (bits >> i & 1) == 1; this.modules[i % 3 + this.moduleCount - 8 - 3][Math.floor(i / 3)] = mod; } }, "setupTypeInfo": function(test, maskPattern) { var data = this.errorCorrectLevel << 3 | maskPattern, bits = QRUtil.getBCHTypeInfo(data); for(var i = 0; i < 15; i++) { var mod = !test && (bits >> i & 1) == 1; i < 6 ? this.modules[i][8] = mod : i < 8 ? this.modules[i + 1][8] = mod : this.modules[this.moduleCount - 15 + i][8] = mod; } for(var i = 0; i < 15; i++) { var mod = !test && (bits >> i & 1) == 1; i < 8 ? this.modules[8][this.moduleCount - i - 1] = mod : i < 9 ? this.modules[8][15 - i - 1 + 1] = mod : this.modules[8][15 - i - 1] = mod; } this.modules[this.moduleCount - 8][8] = !test; }, "mapData": function(data, maskPattern) { var inc = -1, row = this.moduleCount - 1, bitIndex = 7, byteIndex = 0; for(var col = this.moduleCount - 1; col > 0; col -= 2) { col == 6 && col--; for(;;) { for(var c = 0; c < 2; c++) if(this.modules[row][col - c] == null) { var dark = !1; byteIndex < data.length && (dark = (data[byteIndex] >>> bitIndex & 1) == 1); var mask = QRUtil.getMask(maskPattern, row, col - c); mask && (dark = !dark), this.modules[row][col - c] = dark, bitIndex--, bitIndex == -1 && (byteIndex++, bitIndex = 7); } row += inc; if(row < 0 || this.moduleCount <= row) { row -= inc, inc = -inc; break; } } } } }, QRCodeModel.PAD0 = 236, QRCodeModel.PAD1 = 17, QRCodeModel.createData = function(typeNumber, errorCorrectLevel, dataList) { var rsBlocks = QRRSBlock.getRSBlocks(typeNumber, errorCorrectLevel), buffer = new QRBitBuffer; for(var i = 0; i < dataList.length; i++) { var data = dataList[i]; buffer.put(data.mode, 4), buffer.put(data.getLength(), QRUtil.getLengthInBits(data.mode, typeNumber)), data.write(buffer); } var totalDataCount = 0; for(var i = 0; i < rsBlocks.length; i++) totalDataCount += rsBlocks[i].dataCount; if(buffer.getLengthInBits() > totalDataCount * 8) throw new Error("code length overflow. (" + buffer.getLengthInBits() + ">" + totalDataCount * 8 + ")"); buffer.getLengthInBits() + 4 <= totalDataCount * 8 && buffer.put(0, 4); while(buffer.getLengthInBits() % 8 != 0) buffer.putBit(!1); for(;;) { if(buffer.getLengthInBits() >= totalDataCount * 8) break; buffer.put(QRCodeModel.PAD0, 8); if(buffer.getLengthInBits() >= totalDataCount * 8) break; buffer.put(QRCodeModel.PAD1, 8); } return QRCodeModel.createBytes(buffer, rsBlocks); }, QRCodeModel.createBytes = function(buffer, rsBlocks) { var offset = 0, maxDcCount = 0, maxEcCount = 0, dcdata = new Array(rsBlocks.length), ecdata = new Array(rsBlocks.length); for(var r = 0; r < rsBlocks.length; r++) { var dcCount = rsBlocks[r].dataCount, ecCount = rsBlocks[r].totalCount - dcCount; maxDcCount = Math.max(maxDcCount, dcCount), maxEcCount = Math.max(maxEcCount, ecCount), dcdata[r] = new Array(dcCount); for(var i = 0; i < dcdata[r].length; i++) dcdata[r][i] = 255 & buffer.buffer[i + offset]; offset += dcCount; var rsPoly = QRUtil.getErrorCorrectPolynomial(ecCount), rawPoly = new QRPolynomial(dcdata[r], rsPoly.getLength() - 1), modPoly = rawPoly.mod(rsPoly); ecdata[r] = new Array(rsPoly.getLength() - 1); for(var i = 0; i < ecdata[r].length; i++) { var modIndex = i + modPoly.getLength() - ecdata[r].length; ecdata[r][i] = modIndex >= 0 ? modPoly.get(modIndex) : 0; } } var totalCodeCount = 0; for(var i = 0; i < rsBlocks.length; i++) totalCodeCount += rsBlocks[i].totalCount; var data = new Array(totalCodeCount), index = 0; for(var i = 0; i < maxDcCount; i++) for(var r = 0; r < rsBlocks.length; r++) i < dcdata[r].length && (data[index++] = dcdata[r][i]); for(var i = 0; i < maxEcCount; i++) for(var r = 0; r < rsBlocks.length; r++) i < ecdata[r].length && (data[index++] = ecdata[r][i]); return data; }; var QRMode = { "MODE_NUMBER": 1, "MODE_ALPHA_NUM": 2, "MODE_8BIT_BYTE": 4, "MODE_KANJI": 8 }, QRErrorCorrectLevel = { "L": 1, "M": 0, "Q": 3, "H": 2 }, QRMaskPattern = { "PATTERN000": 0, "PATTERN001": 1, "PATTERN010": 2, "PATTERN011": 3, "PATTERN100": 4, "PATTERN101": 5, "PATTERN110": 6, "PATTERN111": 7 }, QRUtil = { "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] ], "G15": 1335, "G18": 7973, "G15_MASK": 21522, "getBCHTypeInfo": function(data) { var d = data << 10; while(QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G15) >= 0) d ^= QRUtil.G15 << QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G15); return(data << 10 | d) ^ QRUtil.G15_MASK; }, "getBCHTypeNumber": function(data) { var d = data << 12; while(QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G18) >= 0) d ^= QRUtil.G18 << QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G18); return data << 12 | d; }, "getBCHDigit": function(data) { var digit = 0; while(data != 0) digit++, data >>>= 1; return digit; }, "getPatternPosition": function(typeNumber) { return QRUtil.PATTERN_POSITION_TABLE[typeNumber - 1]; }, "getMask": function(maskPattern, i, j) { switch(maskPattern) { case QRMaskPattern.PATTERN000: return(i + j) % 2 == 0; case QRMaskPattern.PATTERN001: return i % 2 == 0; case QRMaskPattern.PATTERN010: return j % 3 == 0; case QRMaskPattern.PATTERN011: return(i + j) % 3 == 0; case QRMaskPattern.PATTERN100: return(Math.floor(i / 2) + Math.floor(j / 3)) % 2 == 0; case QRMaskPattern.PATTERN101: return i * j % 2 + i * j % 3 == 0; case QRMaskPattern.PATTERN110: return(i * j % 2 + i * j % 3) % 2 == 0; case QRMaskPattern.PATTERN111: return(i * j % 3 + (i + j) % 2) % 2 == 0; 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) 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) 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)) throw new Error("type:" + type); 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); } } }, "getLostPoint": function(qrCode) { var moduleCount = qrCode.getModuleCount(), lostPoint = 0; for(var row = 0; row < moduleCount; row++) for(var col = 0; col < moduleCount; col++) { var sameCount = 0, 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; dark == qrCode.isDark(row + r, col + c) && sameCount++; } } sameCount > 5 && (lostPoint += 3 + sameCount - 5); } for(var row = 0; row < moduleCount - 1; row++) for(var col = 0; col < moduleCount - 1; col++) { var count = 0; qrCode.isDark(row, col) && count++, qrCode.isDark(row + 1, col) && count++, qrCode.isDark(row, col + 1) && count++, qrCode.isDark(row + 1, col + 1) && count++; if(count == 0 || count == 4) lostPoint += 3; } for(var row = 0; row < moduleCount; row++) for(var col = 0; col < moduleCount - 6; col++) 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++) 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); var darkCount = 0; for(var col = 0; col < moduleCount; col++) for(var row = 0; row < moduleCount; row++) qrCode.isDark(row, col) && darkCount++; var ratio = Math.abs(100 * darkCount / moduleCount / moduleCount - 50) / 5; return lostPoint += ratio * 10, lostPoint; } }, 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.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)), 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); return(new QRPolynomial(num, 0)).mod(e); } }, QRRSBlock.RS_BLOCK_TABLE = [ [1, 26, 19], [1, 26, 16], [1, 26, 13], [1, 26, 9], [1, 44, 34], [1, 44, 28], [1, 44, 22], [1, 44, 16], [1, 70, 55], [1, 70, 44], [2, 35, 17], [2, 35, 13], [1, 100, 80], [2, 50, 32], [2, 50, 24], [4, 25, 9], [1, 134, 108], [2, 67, 43], [2, 33, 15, 2, 34, 16], [2, 33, 11, 2, 34, 12], [2, 86, 68], [4, 43, 27], [4, 43, 19], [4, 43, 15], [2, 98, 78], [4, 49, 31], [2, 32, 14, 4, 33, 15], [4, 39, 13, 1, 40, 14], [2, 121, 97], [2, 60, 38, 2, 61, 39], [4, 40, 18, 2, 41, 19], [4, 40, 14, 2, 41, 15], [2, 146, 116], [3, 58, 36, 2, 59, 37], [4, 36, 16, 4, 37, 17], [4, 36, 12, 4, 37, 13], [2, 86, 68, 2, 87, 69], [4, 69, 43, 1, 70, 44], [6, 43, 19, 2, 44, 20], [6, 43, 15, 2, 44, 16], [4, 101, 81], [1, 80, 50, 4, 81, 51], [4, 50, 22, 4, 51, 23], [3, 36, 12, 8, 37, 13], [2, 116, 92, 2, 117, 93], [6, 58, 36, 2, 59, 37], [4, 46, 20, 6, 47, 21], [7, 42, 14, 4, 43, 15], [4, 133, 107], [8, 59, 37, 1, 60, 38], [8, 44, 20, 4, 45, 21], [12, 33, 11, 4, 34, 12], [3, 145, 115, 1, 146, 116], [4, 64, 40, 5, 65, 41], [11, 36, 16, 5, 37, 17], [11, 36, 12, 5, 37, 13], [5, 109, 87, 1, 110, 88], [5, 65, 41, 5, 66, 42], [5, 54, 24, 7, 55, 25], [11, 36, 12], [5, 122, 98, 1, 123, 99], [7, 73, 45, 3, 74, 46], [15, 43, 19, 2, 44, 20], [3, 45, 15, 13, 46, 16], [1, 135, 107, 5, 136, 108], [10, 74, 46, 1, 75, 47], [1, 50, 22, 15, 51, 23], [2, 42, 14, 17, 43, 15], [5, 150, 120, 1, 151, 121], [9, 69, 43, 4, 70, 44], [17, 50, 22, 1, 51, 23], [2, 42, 14, 19, 43, 15], [3, 141, 113, 4, 142, 114], [3, 70, 44, 11, 71, 45], [17, 47, 21, 4, 48, 22], [9, 39, 13, 16, 40, 14], [3, 135, 107, 5, 136, 108], [3, 67, 41, 13, 68, 42], [15, 54, 24, 5, 55, 25], [15, 43, 15, 10, 44, 16], [4, 144, 116, 4, 145, 117], [17, 68, 42], [17, 50, 22, 6, 51, 23], [19, 46, 16, 6, 47, 17], [2, 139, 111, 7, 140, 112], [17, 74, 46], [7, 54, 24, 16, 55, 25], [34, 37, 13], [4, 151, 121, 5, 152, 122], [4, 75, 47, 14, 76, 48], [11, 54, 24, 14, 55, 25], [16, 45, 15, 14, 46, 16], [6, 147, 117, 4, 148, 118], [6, 73, 45, 14, 74, 46], [11, 54, 24, 16, 55, 25], [30, 46, 16, 2, 47, 17], [8, 132, 106, 4, 133, 107], [8, 75, 47, 13, 76, 48], [7, 54, 24, 22, 55, 25], [22, 45, 15, 13, 46, 16], [10, 142, 114, 2, 143, 115], [19, 74, 46, 4, 75, 47], [28, 50, 22, 6, 51, 23], [33, 46, 16, 4, 47, 17], [8, 152, 122, 4, 153, 123], [22, 73, 45, 3, 74, 46], [8, 53, 23, 26, 54, 24], [12, 45, 15, 28, 46, 16], [3, 147, 117, 10, 148, 118], [3, 73, 45, 23, 74, 46], [4, 54, 24, 31, 55, 25], [11, 45, 15, 31, 46, 16], [7, 146, 116, 7, 147, 117], [21, 73, 45, 7, 74, 46], [1, 53, 23, 37, 54, 24], [19, 45, 15, 26, 46, 16], [5, 145, 115, 10, 146, 116], [19, 75, 47, 10, 76, 48], [15, 54, 24, 25, 55, 25], [23, 45, 15, 25, 46, 16], [13, 145, 115, 3, 146, 116], [2, 74, 46, 29, 75, 47], [42, 54, 24, 1, 55, 25], [23, 45, 15, 28, 46, 16], [17, 145, 115], [10, 74, 46, 23, 75, 47], [10, 54, 24, 35, 55, 25], [19, 45, 15, 35, 46, 16], [17, 145, 115, 1, 146, 116], [14, 74, 46, 21, 75, 47], [29, 54, 24, 19, 55, 25], [11, 45, 15, 46, 46, 16], [13, 145, 115, 6, 146, 116], [14, 74, 46, 23, 75, 47], [44, 54, 24, 7, 55, 25], [59, 46, 16, 1, 47, 17], [12, 151, 121, 7, 152, 122], [12, 75, 47, 26, 76, 48], [39, 54, 24, 14, 55, 25], [22, 45, 15, 41, 46, 16], [6, 151, 121, 14, 152, 122], [6, 75, 47, 34, 76, 48], [46, 54, 24, 10, 55, 25], [2, 45, 15, 64, 46, 16], [17, 152, 122, 4, 153, 123], [29, 74, 46, 14, 75, 47], [49, 54, 24, 10, 55, 25], [24, 45, 15, 46, 46, 16], [4, 152, 122, 18, 153, 123], [13, 74, 46, 32, 75, 47], [48, 54, 24, 14, 55, 25], [42, 45, 15, 32, 46, 16], [20, 147, 117, 4, 148, 118], [40, 75, 47, 7, 76, 48], [43, 54, 24, 22, 55, 25], [10, 45, 15, 67, 46, 16], [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, list = []; for(var i = 0; i < length; i++) { var count = rsBlock[i * 3 + 0], totalCount = rsBlock[i * 3 + 1], 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.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); this.buffer.length <= bufIndex && this.buffer.push(0), bit && (this.buffer[bufIndex] |= 128 >>> this.length % 8), this.length++; } }; var QRCodeLimitLength = [ [17, 14, 11, 7], [32, 26, 20, 14], [53, 42, 32, 24], [78, 62, 46, 34], [106, 84, 60, 44], [134, 106, 74, 58], [154, 122, 86, 64], [192, 152, 108, 84], [230, 180, 130, 98], [271, 213, 151, 119], [321, 251, 177, 137], [367, 287, 203, 155], [425, 331, 241, 177], [458, 362, 258, 194], [520, 412, 292, 220], [586, 450, 322, 250], [644, 504, 364, 280], [718, 560, 394, 310], [792, 624, 442, 338], [858, 666, 482, 382], [929, 711, 509, 403], [1003, 779, 565, 439], [1091, 857, 611, 461], [1171, 911, 661, 511], [1273, 997, 715, 535], [1367, 1059, 751, 593], [1465, 1125, 805, 625], [1528, 1190, 868, 658], [1628, 1264, 908, 698], [1732, 1370, 982, 742], [1840, 1452, 1030, 790], [1952, 1538, 1112, 842], [2068, 1628, 1168, 898], [2188, 1722, 1228, 958], [2303, 1809, 1283, 983], [2431, 1911, 1351, 1051], [2563, 1989, 1423, 1093], [2699, 2099, 1499, 1139], [2809, 2213, 1579, 1219], [2953, 2331, 1663, 1273] ]; function _isSupportCanvas() { return typeof CanvasRenderingContext2D != "undefined"; } // android 2.x doesn"t support Data-URI spec function _getAndroid() { var android = false; var sAgent = navigator.userAgent; if(/android/i.test(sAgent)) { // android android = true; aMat = sAgent.toString().match(/android ([0-9].[0-9])/i); if(aMat && aMat[1]) { android = parseFloat(aMat[1]); } } return android; } var svgDrawer = (function() { var Drawing = function(el, htOption) { this._el = el; this._htOption = htOption; }; Drawing.prototype.draw = function(oQRCode) { var _htOption = this._htOption; var _el = this._el; var nCount = oQRCode.getModuleCount(); var nWidth = Math.floor(_htOption.width / nCount); var nHeight = Math.floor(_htOption.height / nCount); this.clear(); function makeSVG(tag, attrs) { var el = document.createElementNS("http://www.w3.org/2000/svg", tag); for(var k in attrs) if(attrs.hasOwnProperty(k)) el.setAttribute(k, attrs[k]); return el; } var svg = makeSVG("svg", { "viewBox": "0 0 " + String(nCount) + " " + String(nCount), "width": "100%", "height": "100%", "fill": _htOption.colorLight }); svg.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns:xlink", "http://www.w3.org/1999/xlink"); _el.appendChild(svg); svg.appendChild(makeSVG("rect", { "fill": _htOption.colorDark, "width": "1", "height": "1", "id": "template" })); for(var row = 0; row < nCount; row++) { for(var col = 0; col < nCount; col++) { if(oQRCode.isDark(row, col)) { var child = makeSVG("use", { "x": String(row), "y": String(col) }); child.setAttributeNS("http://www.w3.org/1999/xlink", "href", "#template") svg.appendChild(child); } } } }; Drawing.prototype.clear = function() { while(this._el.hasChildNodes()) this._el.removeChild(this._el.lastChild); }; return Drawing; })(); var useSVG = document.documentElement.tagName.toLowerCase() === "svg"; // Drawing in DOM by using Table tag var Drawing = useSVG ? svgDrawer : !_isSupportCanvas() ? (function() { var Drawing = function(el, htOption) { this._el = el; this._htOption = htOption; }; /** * Draw the QRCode * * @param {QRCode} oQRCode */ Drawing.prototype.draw = function(oQRCode) { var _htOption = this._htOption; var _el = this._el; var nCount = oQRCode.getModuleCount(); var nWidth = Math.floor(_htOption.width / nCount); var nHeight = Math.floor(_htOption.height / nCount); var aHTML = ["
"); } aHTML.push(" |
简单界面--qRcode.html
另附dcloudH5+在手机端扫码调用小DEMO(在Hbuilder上创建移动APP才能运行)
调用界面barcode.html
Hello H5+
扫码界面barcode_scan.html
扫码界面 ...载入中...
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