//--------------------------------------------------------------------- // 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 // //--------------------------------------------------------------------- //--------------------------------------------------------------------- // QR8bitByte //--------------------------------------------------------------------- function QR8bitByte(data) { this.mode = QRMode.MODE_8BIT_BYTE; this.data = data; } QR8bitByte.prototype = { getLength: function(buffer) { return this.data.length; }, write: function(buffer) { for (var i = 0; i < this.data.length; i++) { // not JIS ... buffer.put(this.data.charCodeAt(i), 8); } } }; //--------------------------------------------------------------------- // QRCode //--------------------------------------------------------------------- function QRCode(typeNumber, errorCorrectLevel) { this.typeNumber = typeNumber; this.errorCorrectLevel = errorCorrectLevel; this.modules = null; this.moduleCount = 0; this.dataCache = null; this.dataList = new Array(); } QRCode.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() { // Calculate automatically typeNumber if provided is < 1 if (this.typeNumber < 1) { var typeNumber = 1; for (typeNumber = 1; typeNumber < 40; typeNumber++) { var rsBlocks = QRRSBlock.getRSBlocks(typeNumber, this.errorCorrectLevel); var buffer = new QRBitBuffer(); var totalDataCount = 0; for (var i = 0; i < rsBlocks.length; i++) { totalDataCount += rsBlocks[i].dataCount; } for (var i = 0; i < this.dataList.length; i++) { var data = this.dataList[i]; buffer.put(data.mode, 4); buffer.put(data.getLength(), QRUtil.getLengthInBits(data.mode, typeNumber)); data.write(buffer); } if (buffer.getLengthInBits() <= totalDataCount * 8) break; } this.typeNumber = typeNumber; } this.makeImpl(false, 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; //(col + row) % 3; } } this.setupPositionProbePattern(0, 0); this.setupPositionProbePattern(this.moduleCount - 7, 0); this.setupPositionProbePattern(0, this.moduleCount - 7); this.setupPositionAdjustPattern(); this.setupTimingPattern(); this.setupTypeInfo(test, maskPattern); if (this.typeNumber >= 7) { this.setupTypeNumber(test); } if (this.dataCache == null) { this.dataCache = QRCode.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; if ((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] = true; } else { this.modules[row + r][col + c] = false; } } } }, getBestMaskPattern: function() { var minLostPoint = 0; var pattern = 0; for (var i = 0; i < 8; i++) { this.makeImpl(true, 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); var 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; var dark = this.modules[row][col]; if (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]; var col = pos[j]; if (this.modules[row][col] != null) { continue; } for (var r = -2; r <= 2; r++) { for (var c = -2; c <= 2; c++) { if (r == -2 || r == 2 || c == -2 || c == 2 || (r == 0 && c == 0)) { this.modules[row + r][col + c] = true; } else { this.modules[row + r][col + c] = false; } } } } } }, 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; var bits = QRUtil.getBCHTypeInfo(data); // vertical for (var i = 0; i < 15; i++) { var mod = (!test && ((bits >> i) & 1) == 1); if (i < 6) { this.modules[i][8] = mod; } else if (i < 8) { this.modules[i + 1][8] = mod; } else { this.modules[this.moduleCount - 15 + i][8] = mod; } } // horizontal for (var i = 0; i < 15; i++) { var mod = (!test && ((bits >> i) & 1) == 1); if (i < 8) { this.modules[8][this.moduleCount - i - 1] = mod; } else if (i < 9) { this.modules[8][15 - i - 1 + 1] = mod; } else { this.modules[8][15 - i - 1] = mod; } } // fixed module this.modules[this.moduleCount - 8][8] = (!test); }, mapData: function(data, maskPattern) { var inc = -1; var row = this.moduleCount - 1; var bitIndex = 7; var byteIndex = 0; for (var col = this.moduleCount - 1; col > 0; col -= 2) { if (col == 6) col--; while (true) { for (var c = 0; c < 2; c++) { if (this.modules[row][col - c] == null) { var dark = false; if (byteIndex < data.length) { dark = (((data[byteIndex] >>> bitIndex) & 1) == 1); } var mask = QRUtil.getMask(maskPattern, row, col - c); if (mask) { dark = !dark; } this.modules[row][col - c] = dark; bitIndex--; if (bitIndex == -1) { byteIndex++; bitIndex = 7; } } } row += inc; if (row < 0 || this.moduleCount <= row) { row -= inc; inc = -inc; break; } } } } }; QRCode.PAD0 = 0xEC; QRCode.PAD1 = 0x11; QRCode.createData = function(typeNumber, errorCorrectLevel, dataList) { var rsBlocks = QRRSBlock.getRSBlocks(typeNumber, errorCorrectLevel); var 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); } // calc num max data. 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 + ")"); } // end code if (buffer.getLengthInBits() + 4 <= totalDataCount * 8) { buffer.put(0, 4); } // padding while (buffer.getLengthInBits() % 8 != 0) { buffer.putBit(false); } // padding while (true) { if (buffer.getLengthInBits() >= totalDataCount * 8) { break; } buffer.put(QRCode.PAD0, 8); if (buffer.getLengthInBits() >= totalDataCount * 8) { break; } buffer.put(QRCode.PAD1, 8); } return QRCode.createBytes(buffer, rsBlocks); }; QRCode.createBytes = function(buffer, rsBlocks) { var offset = 0; var maxDcCount = 0; var maxEcCount = 0; var dcdata = new Array(rsBlocks.length); var ecdata = new Array(rsBlocks.length); for (var r = 0; r < rsBlocks.length; r++) { var dcCount = rsBlocks[r].dataCount; var 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] = 0xff & buffer.buffer[i + offset]; } offset += dcCount; var rsPoly = QRUtil.getErrorCorrectPolynomial(ecCount); var rawPoly = new QRPolynomial(dcdata[r], rsPoly.getLength() - 1); var 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); var index = 0; for (var i = 0; i < maxDcCount; i++) { for (var r = 0; r < rsBlocks.length; r++) { if (i < dcdata[r].length) { data[index++] = dcdata[r][i]; } } } for (var i = 0; i < maxEcCount; i++) { for (var r = 0; r < rsBlocks.length; r++) { if (i < ecdata[r].length) { data[index++] = ecdata[r][i]; } } } return data; }; //--------------------------------------------------------------------- // QRMode //--------------------------------------------------------------------- var QRMode = { MODE_NUMBER: 1 << 0, MODE_ALPHA_NUM: 1 << 1, MODE_8BIT_BYTE: 1 << 2, MODE_KANJI: 1 << 3 }; //--------------------------------------------------------------------- // QRErrorCorrectLevel //--------------------------------------------------------------------- var QRErrorCorrectLevel = { 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 = { 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: (1 << 10) | (1 << 8) | (1 << 5) | (1 << 4) | (1 << 2) | (1 << 1) | (1 << 0), G18: (1 << 12) | (1 << 11) | (1 << 10) | (1 << 9) | (1 << 8) | (1 << 5) | (1 << 2) | (1 << 0), G15_MASK: (1 << 14) | (1 << 12) | (1 << 10) | (1 << 4) | (1 << 1), 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) { // 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++; } }; QRCode.errorCorrectLevel = QRErrorCorrectLevel; /** * 字符编码支持中文,QRCode使用mode 4 8bit * @param {String} text 文本 */ function utf16To8(text) { text = text.toString(); var result = ''; var c; for (var i = 0; i < text.length; i++) { c = text.charCodeAt(i); if (c >= 0x0001 && c <= 0x007F) { result += text.charAt(i); } else if (c > 0x07FF) { result += String.fromCharCode(0xE0 | c >> 12 & 0x0F); result += String.fromCharCode(0x80 | c >> 6 & 0x3F); result += String.fromCharCode(0x80 | c >> 0 & 0x3F); } else { result += String.fromCharCode(0xC0 | c >> 6 & 0x1F); result += String.fromCharCode(0x80 | c >> 0 & 0x3F); } } return result; } /** * 对象属性深度替换 * @param {Object} o 原始对象/默认对象/被替换的对象 * @param {Object} r 从这个对象里取值替换到o对象里 * @return {Object} 替换后的新对象 */ function deepReplace(o = {}, r = {}, c = false) { let obj; if (c) { // 从源替换 obj = o; } else { // 不替换源,copy一份备份来替换 obj = { ...o }; } for (var k in r) { var vr = r[k]; if (vr != undefined) { if (vr.constructor == Object) { obj[k] = this.deepReplace(obj[k], vr); } else if (vr.constructor == String && !vr) { obj[k] = obj[k]; } else { obj[k] = vr; } } } return obj; } /** * 获取画布定制上下文。 * @param {*} ctx 前端传过来的上下文 * 写扩展插件时需注意,因微信官方旧版Canvas未完全依照Web Canvas API设计,安卓并未兼容,如需要H5和微信小程序旧版Canvas同时兼容,需要在扩展函数里加入这些API的兼容。(如当前未补充的:setLineCap、setTransform、setStrokeStyle等与Web Canvas不一致的API) */ function getCanvasContext(ctx) { /** ctx注意事项: gcanvas drawImage后必跟一个draw(true),否则会出现图片丢失的情况; gcanvas 坑实在是太多了,nvue端建议部署一个nodejs服务,通过接口获取二维码图片,这样做体验最好; **/ /* 兼容setFillStyle写法,主要在uni-app nvue gcanvas 微信小程序normal */ ctx.setFillStyle = ctx.setFillStyle || function(color) { ctx.fillStyle = color; }; /* 兼容setFontSize写法 */ ctx.setFontSize = ctx.setFontSize || function(fontSize) { ctx.font = `${fontSize}px`; }; /* 兼容setTextAlign写法 */ ctx.setTextAlign = ctx.setTextAlign || function(align) { ctx.textAlign = align; }; /* 兼容setTextBaseline写法 */ ctx.setTextBaseline = ctx.setTextBaseline || function(textBaseline) { ctx.textBaseline = textBaseline; }; /* 兼容setGlobalAlpha写法,设置透明度,主要在微信小程序normal */ ctx.setGlobalAlpha = ctx.setGlobalAlpha || function(alpha) { ctx.globalAlpha = alpha; }; /* 兼容setGlobalAlpha写法,设置描边颜色 */ ctx.setStrokeStyle = ctx.setStrokeStyle || function(color) { ctx.strokeStyle = color; }; /* 兼容setGlobalAlpha写法,设定阴影样式 */ ctx.setShadow = ctx.setShadow || function(offsetX, offsetY, blur, color) { ctx.shadowOffsetX = offsetX; ctx.shadowOffsetY = offsetY; ctx.shadowBlur = blur; ctx.shadowColor = color; }; /* 若实例不包含draw方法则创建一个 */ ctx.draw = ctx.draw || function(reserve, callback) { callback && callback(); }; return ctx; } /* 第一次深受const、let混淆其害,果然还是不能随便使用const、let搭配混淆食用,特别是解构赋值(解构赋值最好使用let),它俩会影响压缩混淆的代码,导致异常。 */ function paintData(instance) { let { dynamicSize: size, margin, backgroundColor, backgroundPadding, foregroundColor, foregroundPadding, modules, moduleCount } = instance; var destSize = (size - margin * 2) / moduleCount; var tileBackgroundSize = destSize; var tileBackgroundPadding = 0; if (backgroundPadding > 0) { tileBackgroundPadding = (tileBackgroundSize * backgroundPadding) / 2; tileBackgroundSize -= tileBackgroundPadding * 2; } var tileForegroundSize = destSize; var tileForegroundPadding = 0; if (foregroundPadding > 0) { tileForegroundPadding = (tileForegroundSize * foregroundPadding) / 2; tileForegroundSize -= tileForegroundPadding * 2; } for (var rowI = 0; rowI < moduleCount; rowI++) { for (var colI = 0; colI < moduleCount; colI++) { var tile = modules[rowI][colI]; var destX = colI * destSize + margin; var destY = rowI * destSize + margin; if (tile) { var tilePadding = tileForegroundPadding; var tileX = destX + tileForegroundPadding; var tileY = destY + tileForegroundPadding; var tileWidth = tileForegroundSize; var tileHeight = tileForegroundSize; modules[rowI][colI] = { type: ['foreground'], color: foregroundColor, isBlack: true, isDrawn: false, destX: destX, destY: destY, destWidth: destSize, destHeight: destSize, x: tileX, y: tileY, width: tileWidth, height: tileHeight, paddingTop: tilePadding, paddingRight: tilePadding, paddingBottom: tilePadding, paddingLeft: tilePadding }; } else { var tilePadding = tileBackgroundPadding; var tileX = destX + tileBackgroundPadding; var tileY = destY + tileBackgroundPadding; var tileWidth = tileBackgroundSize; var tileHeight = tileBackgroundSize; modules[rowI][colI] = { type: ['background'], color: backgroundColor, isBlack: false, isDrawn: false, destX: destX, destY: destY, destWidth: destSize, destHeight: destSize, x: tileX, y: tileY, width: tileWidth, height: tileHeight, paddingTop: tilePadding, paddingRight: tilePadding, paddingBottom: tilePadding, paddingLeft: tilePadding }; } } } } function paintPositionProbe(instance) { let { modules, moduleCount, positionProbeBackgroundColor, positionProbeForegroundColor } = instance; var basePart = [ [0, 0, 1], [1, 0, 1], [2, 0, 1], [3, 0, 1], [4, 0, 1], [5, 0, 1], [6, 0, 1], [0, 1, 1], [1, 1, 0], [2, 1, 0], [3, 1, 0], [4, 1, 0], [5, 1, 0], [6, 1, 1], [0, 2, 1], [1, 2, 0], [2, 2, 1], [3, 2, 1], [4, 2, 1], [5, 2, 0], [6, 2, 1], [0, 3, 1], [1, 3, 0], [2, 3, 1], [3, 3, 1], [4, 3, 1], [5, 3, 0], [6, 3, 1], [0, 4, 1], [1, 4, 0], [2, 4, 1], [3, 4, 1], [4, 4, 1], [5, 4, 0], [6, 4, 1], [0, 5, 1], [1, 5, 0], [2, 5, 0], [3, 5, 0], [4, 5, 0], [5, 5, 0], [6, 5, 1], [0, 6, 1], [1, 6, 1], [2, 6, 1], [3, 6, 1], [4, 6, 1], [5, 6, 1], [6, 6, 1] ]; var disc = moduleCount - 7; basePart.forEach(d => { var ltItem = modules[d[0]][d[1]]; var rtItem = modules[d[0] + disc][d[1]]; var lbItem = modules[d[0]][d[1] + disc]; lbItem.type.push('positionProbe'); rtItem.type.push('positionProbe'); ltItem.type.push('positionProbe'); //绘制左上角 ltItem.color = d[2] == 1 ? positionProbeForegroundColor : positionProbeBackgroundColor; //绘制右上角 rtItem.color = d[2] == 1 ? positionProbeForegroundColor : positionProbeBackgroundColor; //绘制左下角 lbItem.color = d[2] == 1 ? positionProbeForegroundColor : positionProbeBackgroundColor; }); } function paintSeparator(instance) { let { modules, moduleCount, separatorColor } = instance; var basePart = [ [7, 0], [7, 1], [7, 2], [7, 3], [7, 4], [7, 5], [7, 6], [7, 7], [0, 7], [1, 7], [2, 7], [3, 7], [4, 7], [5, 7], [6, 7] ]; basePart.forEach(d => { var ltItem = modules[d[0]][d[1]]; var rtItem = modules[moduleCount - d[0] - 1][d[1]]; var lbItem = modules[d[0]][moduleCount - d[1] - 1]; lbItem.type.push('separator'); rtItem.type.push('separator'); ltItem.type.push('separator'); //绘制左上 ltItem.color = separatorColor; //绘制右上 rtItem.color = separatorColor; //绘制左下 lbItem.color = separatorColor; }); } function paintPositionAdjust(instance) { let { typeNumber, modules, moduleCount, foregroundColor, backgroundColor, positionAdjustForegroundColor, positionAdjustBackgroundColor, timingForegroundColor, timingBackgroundColor } = instance; /* 不同版本的对齐图案组合位置 */ var ALIGNMENT_OF_VERSION = [ [], [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] ]; /* 对齐图案数量和中心位置根据版本定义 */ var alignments = ALIGNMENT_OF_VERSION[typeNumber - 1]; if (alignments) { var calcMatrix = [ [-2, -2, 1], [-1, -2, 1], [0, -2, 1], [1, -2, 1], [2, -2, 1], [-2, -1, 1], [-1, -1, 0], [0, -1, 0], [1, -1, 0], [2, -1, 1], [-2, 0, 1], [-1, 0, 0], [0, 0, 1], [1, 0, 0], [2, 0, 1], [-2, 1, 1], [-1, 1, 0], [0, 1, 0], [1, 1, 0], [2, 1, 1], [-2, 2, 1], [-1, 2, 1], [0, 2, 1], [1, 2, 1], [2, 2, 1] ]; var group_len = alignments.length; for (var i = 0; i < group_len; i++) { for (var j = 0; j < group_len; j++) { /* 对齐图案不能污染定位器和分隔器 */ var { x, y } = { x: alignments[i], y: alignments[j] }; if (!((x < 9 && y < 9) || (x > moduleCount - 9 - 1 && y < 9) || (y > moduleCount - 9 - 1 && x < 9))) { calcMatrix.forEach(d => { var alignmentItem = modules[x + d[0]][y + d[1]]; alignmentItem.type.push('positionAdjust'); if (alignmentItem.type.includes('timing')) { /* 因为对齐图案层级比时序图案高,所以此处做一下处理,如果是与timing重叠部分,timing设置了颜色而positionAdjust颜色与foreground一致则使用timing颜色,否则使用默认颜色 */ if (d[2] == 1) { if (positionAdjustForegroundColor == foregroundColor) { alignmentItem.color = timingForegroundColor; } else { alignmentItem.color = positionAdjustForegroundColor; } } else { if (positionAdjustForegroundColor == foregroundColor) { if (positionAdjustBackgroundColor == backgroundColor) { alignmentItem.color = timingBackgroundColor; } else { alignmentItem.color = positionAdjustBackgroundColor; } } else { alignmentItem.color = positionAdjustBackgroundColor; } } } else { alignmentItem.color = d[2] == 1 ? positionAdjustForegroundColor : positionAdjustBackgroundColor; } }); } } } } } function paintTiming(instance) { let { modules, moduleCount, timingForegroundColor, timingBackgroundColor } = instance; var timingPartLen = moduleCount - 16; for (var i = 0; i < timingPartLen; i++) { var xItem = modules[6][8 + i]; var yItem = modules[8 + i][6]; xItem.type.push('timing'); yItem.type.push('timing'); xItem.color = (1 & i) ^ 1 ? timingForegroundColor : timingBackgroundColor; yItem.color = (1 & i) ^ 1 ? timingForegroundColor : timingBackgroundColor; } } function paintDarkBlock(instance) { let { modules, moduleCount, darkBlockColor } = instance; var darkBlockItem = modules[moduleCount - 7 - 1][8]; darkBlockItem.type.push('darkBlock'); darkBlockItem.color = darkBlockColor; } function paintTypeNumber(instance) { let { typeNumber, modules, moduleCount, typeNumberBackgroundColor, typeNumberForegroundColor } = instance; if (typeNumber < 7) { return modules; } /* 预留版本信息,0为补位,从索引7开始 */ var VERSIONS = [ 0, 0, 0, 0, 0, 0, 0, '000111110010010100', '001000010110111100', '001001101010011001', '001010010011010011', '001011101111110110', '001100011101100010', '001101100001000111', '001110011000001101', '001111100100101000', '010000101101111000', '010001010001011101', '010010101000010111', '010011010100110010', '010100100110100110', '010101011010000011', '010110100011001001', '010111011111101100', '011000111011000100', '011001000111100001', '011010111110101011', '011011000010001110', '011100110000011010', '011101001100111111', '011110110101110101', '011111001001010000', '100000100111010101', '100001011011110000', '100010100010111010', '100011011110011111', '100100101100001011', '100101010000101110', '100110101001100100', '100111010101000001', '101000110001101001' ]; /* 两种方式获取预留格式信息,临时计算或者查字典 */ //var version_codes = _v.correctVersionData(_v.version); var version_codes = VERSIONS[typeNumber] + VERSIONS[typeNumber]; /* 创建预留版本信息 */ var disc = [moduleCount - 11, moduleCount - 10, moduleCount - 9]; /* 左+右 */ var version_cells = [ /* 左 */ [5, disc[2]], [5, disc[1]], [5, disc[0]], [4, disc[2]], [4, disc[1]], [4, disc[0]], [3, disc[2]], [3, disc[1]], [3, disc[0]], [2, disc[2]], [2, disc[1]], [2, disc[0]], [1, disc[2]], [1, disc[1]], [1, disc[0]], [0, disc[2]], [0, disc[1]], [0, disc[0]], /* 右 */ [disc[2], 5], [disc[1], 5], [disc[0], 5], [disc[2], 4], [disc[1], 4], [disc[0], 4], [disc[2], 3], [disc[1], 3], [disc[0], 3], [disc[2], 2], [disc[1], 2], [disc[0], 2], [disc[2], 1], [disc[1], 1], [disc[0], 1], [disc[2], 0], [disc[1], 0], [disc[0], 0] ]; version_cells.forEach((d, index) => { var versionInformationItem = modules[d[0]][d[1]]; versionInformationItem.type.push('typeNumber'); versionInformationItem.color = version_codes[index] == '1' ? typeNumberForegroundColor : typeNumberBackgroundColor; }); } /** * UQRCode * @param {Object} options * @param {Object} canvasContext */ function UQRCode(options, canvasContext) { /** 基本属性 */ var _data = this.data = ''; // 二维码对应内容 this.dataEncode = true; // 数据编码,默认utf16to8,设为false则传入原始data,如有特殊的编码需求,可以将其设为false,再将数据编码后传入data var _size = this.size = 200; // 二维码大小 this.useDynamicSize = false; // 使用动态尺寸,自动计算每一个小方块尺寸为整数,因为canvas特性,小数点部分会被绘制为透明渐变色,绘制后看起来像是有白色细线,计算为整数则可以解决这个问题,但是实际尺寸已不是原尺寸,canvas的尺寸需要通过获取dynamicSize后重新设置 this.dynamicSize = _size; // 动态尺寸 var _typeNumber = this.typeNumber = -1; // 二维码版本,-1为自动计算,自动计算字符越多,版本越高 this.errorCorrectLevel = UQRCode.errorCorrectLevel.H; // 纠错等级 var _margin = this.margin = 0; // 二维码外边距 this.areaColor = '#FFFFFF'; // 二维码绘制区域颜色、底部背景色 /** 背景属性 */ this.backgroundColor = 'rgba(255,255,255,0)'; // 背景色 this.backgroundImageSrc = undefined; //背景图片地址 var _backgroundImageWidth = this.backgroundImageWidth = undefined; // 背景图片宽度,默认与size同宽 var _backgroundImageHeight = this.backgroundImageHeight = undefined; // 背景图片高度,默认与size同高 var _backgroundImageX = this.backgroundImageX = undefined; // 背景图片位置X坐标,默认0 var _backgroundImageY = this.backgroundImageY = undefined; // 背景图片位置Y坐标,默认0 this.backgroundImageAlpha = 1; // 背景图片透明度,默认不透明 this.backgroundImageBorderRadius = 0; // 背景图片圆角,默认不是圆角 var _backgroundPadding = this.backgroundPadding = 0.0; // 背景码点内边距,系数:0.0-1.0 /** 前景属性 */ this.foregroundColor = '#000000'; // 前景色 this.foregroundImageSrc = undefined; // 前景图片地址 var _foregroundImageWidth = this.foregroundImageWidth = undefined; // 前景图片宽度,默认为size的1/4 var _foregroundImageHeight = this.foregroundImageHeight = undefined; // 前景图片高度,默认为size的1/4 var _foregroundImageX = this.foregroundImageX = undefined; // 前景图片位置X坐标,默认在画布中间位置 var _foregroundImageY = this.foregroundImageY = undefined; // 前景图片位置Y坐标,默认在画布中间位置 var _foregroundImagePadding = this.foregroundImagePadding = 0; // 前景图边距填充 this.foregroundImageBackgroundColor = '#FFFFFF'; // 前景图背景颜色 var _foregroundImageBorderRadius = this.foregroundImageBorderRadius = 0; // 前景图边界圆角 var _foregroundImageShadowOffsetX = this.foregroundImageShadowOffsetX = 0; // 前景图阴影水平偏移值 var _foregroundImageShadowOffsetY = this.foregroundImageShadowOffsetY = 0; // 前景图阴影垂直偏移值 var _foregroundImageShadowBlur = this.foregroundImageShadowBlur = 0; // 前景图阴影模糊度 this.foregroundImageShadowColor = '#808080'; // 前景图阴影颜色 var _foregroundPadding = this.foregroundPadding = 0.0; // 前景码点内边距,0.0-1.0 /** 其他属性 */ var _positionProbeBackgroundColor = this.positionProbeBackgroundColor = undefined; // 定位角区域背景色,默认值跟随背景色 var _positionProbeForegroundColor = this.positionProbeForegroundColor = undefined; // 定位角码点颜色,默认值跟随前景色 var _separatorColor = this.separatorColor = undefined; // 分割区域颜色,默认值跟随背景色 var _positionAdjustBackgroundColor = this.positionAdjustBackgroundColor = undefined; // 对齐区域背景色,默认值跟随背景色 var _positionAdjustForegroundColor = this.positionAdjustForegroundColor = undefined; // 对齐码点颜色,默认值跟随前景色 var _timingBackgroundColor = this.timingBackgroundColor = undefined; // 时序区域背景色,默认值跟随背景色 var _timingForegroundColor = this.timingForegroundColor = undefined; // 时序码点颜色,默认值跟随前景色 var _typeNumberBackgroundColor = this.typeNumberBackgroundColor = undefined; // 版本信息区域背景色,默认值跟随背景色 var _typeNumberForegroundColor = this.typeNumberForegroundColor = undefined; // 版本信息码点颜色,默认值跟随前景色 var _darkBlockColor = this.darkBlockColor = undefined; // 暗块颜色,默认值跟随前景色 /** 数据 */ this.base = undefined; // 二维码基本对象,通过实例化QRCode类并调用make后得到 this.modules = []; // 制作二维码主要模块数据,基于base的modules但数据格式不一致,这里的modules是定制过的 this.moduleCount = 0; // 模块数量 this.drawModules = []; // 绘制模块,层级:最底层 -> 绘制区域 -> 背景图片 -> 背景|前景 -> 前景图片 -> 最顶层 /** 绘制模块 */ var _canvasContext = this.canvasContext = undefined; // canvas上下文 this.loadImage; this.drawReserve = false; // ctx.draw保留绘制,本次绘制是否接着上一次绘制,2d没有draw方法,所以2d该属性对2d无效 this.isMaked = false; /* 属性设置 */ Object.defineProperties(this, { data: { get() { if (_data === '' || _data === undefined) { console.error('[uQRCode]: data must be set!'); throw new UQRCode.Error('data must be set!'); } return _data; }, set(value) { _data = String(value); } }, size: { get() { return _size; }, set(value) { _size = Number(value); } }, typeNumber: { get() { return _typeNumber; }, set(value) { _typeNumber = Number(value); } }, margin: { get() { return _margin; }, set(value) { _margin = Number(value); } }, backgroundImageWidth: { get() { if (_backgroundImageWidth === undefined) { return this.dynamicSize; } else { if (this.useDynamicSize) { return (this.dynamicSize / this.size) * _backgroundImageWidth; } else { return _backgroundImageWidth; } } }, set(value) { _backgroundImageWidth = Number(value); } }, backgroundImageHeight: { get() { if (_backgroundImageHeight === undefined) { return this.dynamicSize; } else { if (this.useDynamicSize) { return (this.dynamicSize / this.size) * _backgroundImageHeight; } else { return _backgroundImageHeight; } } }, set(value) { _backgroundImageHeight = Number(value); } }, backgroundImageX: { get() { if (_backgroundImageX === undefined) { return 0; } else { if (this.useDynamicSize) { return (this.dynamicSize / this.size) * _backgroundImageX; } else { return _backgroundImageX; } } }, set(value) { _backgroundImageX = Number(value); } }, backgroundImageY: { get() { if (_backgroundImageY === undefined) { return 0; } else { if (this.useDynamicSize) { return (this.dynamicSize / this.size) * _backgroundImageY; } else { return _backgroundImageY; } } }, set(value) { _backgroundImageY = Number(value); } }, backgroundPadding: { get() { return _backgroundPadding; }, set(value) { if (value > 1) { _backgroundPadding = 1; } else if (value < 0) { _backgroundPadding = 0; } else { _backgroundPadding = value; } } }, foregroundImageWidth: { get() { if (_foregroundImageWidth === undefined) { return (this.dynamicSize - this.margin * 2) / 4; } else { if (this.useDynamicSize) { return (this.dynamicSize / this.size) * _foregroundImageWidth; } else { return _foregroundImageWidth; } } }, set(value) { _foregroundImageWidth = Number(value); } }, foregroundImageHeight: { get() { if (_foregroundImageHeight === undefined) { return (this.dynamicSize - this.margin * 2) / 4; } else { if (this.useDynamicSize) { return (this.dynamicSize / this.size) * _foregroundImageHeight; } else { return _foregroundImageHeight; } } }, set(value) { _foregroundImageHeight = Number(value); } }, foregroundImageX: { get() { if (_foregroundImageX === undefined) { return this.dynamicSize / 2 - this.foregroundImageWidth / 2; } else { if (this.useDynamicSize) { return (this.dynamicSize / this.size) * _foregroundImageX; } else { return _foregroundImageX; } } }, set(value) { _foregroundImageX = Number(value); } }, foregroundImageY: { get() { if (_foregroundImageY === undefined) { return this.dynamicSize / 2 - this.foregroundImageHeight / 2; } else { if (this.useDynamicSize) { return (this.dynamicSize / this.size) * _foregroundImageY; } else { return _foregroundImageY; } } }, set(value) { _foregroundImageY = Number(value); } }, foregroundImagePadding: { get() { if (this.useDynamicSize) { return (this.dynamicSize / this.size) * _foregroundImagePadding; } else { return _foregroundImagePadding; } }, set(value) { _foregroundImagePadding = Number(value); } }, foregroundImageBorderRadius: { get() { if (this.useDynamicSize) { return (this.dynamicSize / this.size) * _foregroundImageBorderRadius; } else { return _foregroundImageBorderRadius; } }, set(value) { _foregroundImageBorderRadius = Number(value); } }, foregroundImageShadowOffsetX: { get() { if (this.useDynamicSize) { return (this.dynamicSize / this.size) * _foregroundImageShadowOffsetX; } else { return _foregroundImageShadowOffsetX; } }, set(value) { _foregroundImageShadowOffsetX = Number(value); } }, foregroundImageShadowOffsetY: { get() { if (this.useDynamicSize) { return (this.dynamicSize / this.size) * _foregroundImageShadowOffsetY; } else { return _foregroundImageShadowOffsetY; } }, set(value) { _foregroundImageShadowOffsetY = Number(value); } }, foregroundImageShadowBlur: { get() { if (this.useDynamicSize) { return (this.dynamicSize / this.size) * _foregroundImageShadowBlur; } else { return _foregroundImageShadowBlur; } }, set(value) { _foregroundImageShadowBlur = Number(value); } }, foregroundPadding: { get() { return _foregroundPadding; }, set(value) { if (value > 1) { _foregroundPadding = 1; } else if (value < 0) { _foregroundPadding = 0; } else { _foregroundPadding = value; } } }, positionProbeBackgroundColor: { get() { return _positionProbeBackgroundColor || this.backgroundColor; }, set(value) { _positionProbeBackgroundColor = value; } }, positionProbeForegroundColor: { get() { return _positionProbeForegroundColor || this.foregroundColor; }, set(value) { _positionProbeForegroundColor = value; } }, separatorColor: { get() { return _separatorColor || this.backgroundColor; }, set(value) { _separatorColor = value; } }, positionAdjustBackgroundColor: { get() { return _positionAdjustBackgroundColor || this.backgroundColor; }, set(value) { _positionAdjustBackgroundColor = value; } }, positionAdjustForegroundColor: { get() { return _positionAdjustForegroundColor || this.foregroundColor; }, set(value) { _positionAdjustForegroundColor = value; } }, timingBackgroundColor: { get() { return _timingBackgroundColor || this.backgroundColor; }, set(value) { _timingBackgroundColor = value; } }, timingForegroundColor: { get() { return _timingForegroundColor || this.foregroundColor; }, set(value) { _timingForegroundColor = value; } }, typeNumberBackgroundColor: { get() { return _typeNumberBackgroundColor || this.backgroundColor; }, set(value) { _typeNumberBackgroundColor = value; } }, typeNumberForegroundColor: { get() { return _typeNumberForegroundColor || this.foregroundColor; }, set(value) { _typeNumberForegroundColor = value; } }, darkBlockColor: { get() { return _darkBlockColor || this.foregroundColor; }, set(value) { _darkBlockColor = value; } }, canvasContext: { get() { if (_canvasContext === undefined) { console.error('[uQRCode]: use drawCanvas, you need to set the canvasContext!'); throw new UQRCode.Error('use drawCanvas, you need to set the canvasContext!'); } return _canvasContext; }, set(value) { _canvasContext = getCanvasContext(value); } } }); /* 安装扩展插件 */ UQRCode.plugins.forEach(plugin => plugin(UQRCode, this, false)); /* 兼容v3.2.0-v3.4.5版本写法 */ if (options) { this.setOptions(options); } if (canvasContext) { this.canvasContext = getCanvasContext(canvasContext); } } /* 纠错等级 */ UQRCode.errorCorrectLevel = QRCode.errorCorrectLevel; /** * 错误类 * @param {String} msg */ UQRCode.Error = function(msg) { this.errMsg = '[uQRCode]: ' + msg; }; /* 插件集合 */ UQRCode.plugins = []; /** * 全局扩展插件方法 * @param {Function} func */ UQRCode.use = function(plugin) { if (typeof plugin === 'function') { UQRCode.plugins.push(plugin); } }; /** * 加载图片 * @param {String} src */ UQRCode.prototype.loadImage = function(src) { return Promise.resolve(src); }; /** * 设置选项 * @param {Object} options */ UQRCode.prototype.setOptions = function(options) { if (options) { Object.keys(options).forEach(k => { this[k] = options[k]; }); /* 其中包含了兼容v3.2.0-v3.4.5的写法 */ // deepReplace(this, { // data: options.data || options.text, // dataEncode: options.dataEncode, // size: options.size, // useDynamicSize: options.useDynamicSize, // typeNumber: options.typeNumber, // errorCorrectLevel: options.errorCorrectLevel, // margin: options.margin, // areaColor: options.areaColor, // backgroundColor: options.backgroundColor || options.background?.color, // backgroundImageSrc: options.backgroundImageSrc || options.background?.image?.src, // backgroundImageWidth: options.backgroundImageWidth || options.background?.image?.width, // backgroundImageHeight: options.backgroundImageHeight || options.background?.image?.height, // backgroundImageX: options.backgroundImageX || options.background?.image?.x, // backgroundImageY: options.backgroundImageY || options.background?.image?.y, // backgroundImageAlpha: options.backgroundImageAlpha || options.background?.image?.alpha, // backgroundImageBorderRadius: options.backgroundImageBorderRadius || options.background?.image?.borderRadius, // backgroundPadding: options.backgroundPadding, // foregroundColor: options.foregroundColor || options.foreground?.color, // foregroundImageSrc: options.foregroundImageSrc || options.foreground?.image?.src, // foregroundImageWidth: options.foregroundImageWidth || options.foreground?.image?.width, // foregroundImageHeight: options.foregroundImageHeight || options.foreground?.image?.height, // foregroundImageX: options.foregroundImageX || options.foreground?.image?.x, // foregroundImageY: options.foregroundImageY || options.foreground?.image?.y, // foregroundImagePadding: options.foregroundImagePadding || options.foreground?.image?.padding, // foregroundImageBackgroundColor: options.foregroundImageBackgroundColor || options.foreground?.image?.backgroundColor, // foregroundImageBorderRadius: options.foregroundImageBorderRadius || options.foreground?.image?.borderRadius, // foregroundImageShadowOffsetX: options.foregroundImageShadowOffsetX || options.foreground?.image?.shadowOffsetX, // foregroundImageShadowOffsetY: options.foregroundImageShadowOffsetY || options.foreground?.image?.shadowOffsetY, // foregroundImageShadowBlur: options.foregroundImageShadowBlur || options.foreground?.image?.shadowBlur, // foregroundImageShadowColor: options.foregroundImageShadowColor || options.foreground?.image?.shadowColor, // foregroundPadding: options.foregroundPadding, // positionProbeBackgroundColor: options.positionProbeBackgroundColor || options.positionProbe?.backgroundColor || options.positionDetection?.backgroundColor, // positionProbeForegroundColor: options.positionProbeForegroundColor || options.positionProbe?.foregroundColor || options.positionDetection?.foregroundColor, // separatorColor: options.separatorColor || options.separator?.color, // positionAdjustBackgroundColor: options.positionAdjustBackgroundColor || options.positionAdjust?.backgroundColor || options.alignment?.backgroundColor, // positionAdjustForegroundColor: options.positionAdjustForegroundColor || options.positionAdjust?.foregroundColor || options.alignment?.foregroundColor, // timingBackgroundColor: options.timingBackgroundColor || options.timing?.backgroundColor, // timingForegroundColor: options.timingForegroundColor || options.timing?.foregroundColor, // typeNumberBackgroundColor: options.typeNumberBackgroundColor || options.typeNumber?.backgroundColor || options.versionInformation?.backgroundColor, // typeNumberForegroundColor: options.typeNumberForegroundColor || options.typeNumber?.foregroundColor || options.versionInformation?.foregroundColor, // darkBlockColor: options.darkBlockColor || options.darkBlock?.color // }, true); /* rollup配置es6转es5后并未进行转换,故通过babel在线转换后替换 */ var _options$background, _options$background2, _options$background2$, _options$background3, _options$background3$, _options$background4, _options$background4$, _options$background5, _options$background5$, _options$background6, _options$background6$, _options$background7, _options$background7$, _options$background8, _options$background8$, _options$foreground, _options$foreground2, _options$foreground2$, _options$foreground3, _options$foreground3$, _options$foreground4, _options$foreground4$, _options$foreground5, _options$foreground5$, _options$foreground6, _options$foreground6$, _options$foreground7, _options$foreground7$, _options$foreground8, _options$foreground8$, _options$foreground9, _options$foreground9$, _options$foreground10, _options$foreground11, _options$foreground12, _options$foreground13, _options$foreground14, _options$foreground15, _options$foreground16, _options$foreground17, _options$positionProb, _options$positionDete, _options$positionProb2, _options$positionDete2, _options$separator, _options$positionAdju, _options$alignment, _options$positionAdju2, _options$alignment2, _options$timing, _options$timing2, _options$typeNumber, _options$versionInfor, _options$typeNumber2, _options$versionInfor2, _options$darkBlock; deepReplace(this, { data: options.data || options.text, dataEncode: options.dataEncode, size: options.size, useDynamicSize: options.useDynamicSize, typeNumber: options.typeNumber, errorCorrectLevel: options.errorCorrectLevel, margin: options.margin, areaColor: options.areaColor, backgroundColor: options.backgroundColor || ((_options$background = options.background) === null || _options$background === void 0 ? void 0 : _options$background.color), backgroundImageSrc: options.backgroundImageSrc || ((_options$background2 = options.background) === null || _options$background2 === void 0 ? void 0 : (_options$background2$ = _options$background2.image) === null || _options$background2$ === void 0 ? void 0 : _options$background2$.src), backgroundImageWidth: options.backgroundImageWidth || ((_options$background3 = options.background) === null || _options$background3 === void 0 ? void 0 : (_options$background3$ = _options$background3.image) === null || _options$background3$ === void 0 ? void 0 : _options$background3$.width), backgroundImageHeight: options.backgroundImageHeight || ((_options$background4 = options.background) === null || _options$background4 === void 0 ? void 0 : (_options$background4$ = _options$background4.image) === null || _options$background4$ === void 0 ? void 0 : _options$background4$.height), backgroundImageX: options.backgroundImageX || ((_options$background5 = options.background) === null || _options$background5 === void 0 ? void 0 : (_options$background5$ = _options$background5.image) === null || _options$background5$ === void 0 ? void 0 : _options$background5$.x), backgroundImageY: options.backgroundImageY || ((_options$background6 = options.background) === null || _options$background6 === void 0 ? void 0 : (_options$background6$ = _options$background6.image) === null || _options$background6$ === void 0 ? void 0 : _options$background6$.y), backgroundImageAlpha: options.backgroundImageAlpha || ((_options$background7 = options.background) === null || _options$background7 === void 0 ? void 0 : (_options$background7$ = _options$background7.image) === null || _options$background7$ === void 0 ? void 0 : _options$background7$.alpha), backgroundImageBorderRadius: options.backgroundImageBorderRadius || ((_options$background8 = options.background) === null || _options$background8 === void 0 ? void 0 : (_options$background8$ = _options$background8.image) === null || _options$background8$ === void 0 ? void 0 : _options$background8$.borderRadius), backgroundPadding: options.backgroundPadding, foregroundColor: options.foregroundColor || ((_options$foreground = options.foreground) === null || _options$foreground === void 0 ? void 0 : _options$foreground.color), foregroundImageSrc: options.foregroundImageSrc || ((_options$foreground2 = options.foreground) === null || _options$foreground2 === void 0 ? void 0 : (_options$foreground2$ = _options$foreground2.image) === null || _options$foreground2$ === void 0 ? void 0 : _options$foreground2$.src), foregroundImageWidth: options.foregroundImageWidth || ((_options$foreground3 = options.foreground) === null || _options$foreground3 === void 0 ? void 0 : (_options$foreground3$ = _options$foreground3.image) === null || _options$foreground3$ === void 0 ? void 0 : _options$foreground3$.width), foregroundImageHeight: options.foregroundImageHeight || ((_options$foreground4 = options.foreground) === null || _options$foreground4 === void 0 ? void 0 : (_options$foreground4$ = _options$foreground4.image) === null || _options$foreground4$ === void 0 ? void 0 : _options$foreground4$.height), foregroundImageX: options.foregroundImageX || ((_options$foreground5 = options.foreground) === null || _options$foreground5 === void 0 ? void 0 : (_options$foreground5$ = _options$foreground5.image) === null || _options$foreground5$ === void 0 ? void 0 : _options$foreground5$.x), foregroundImageY: options.foregroundImageY || ((_options$foreground6 = options.foreground) === null || _options$foreground6 === void 0 ? void 0 : (_options$foreground6$ = _options$foreground6.image) === null || _options$foreground6$ === void 0 ? void 0 : _options$foreground6$.y), foregroundImagePadding: options.foregroundImagePadding || ((_options$foreground7 = options.foreground) === null || _options$foreground7 === void 0 ? void 0 : (_options$foreground7$ = _options$foreground7.image) === null || _options$foreground7$ === void 0 ? void 0 : _options$foreground7$.padding), foregroundImageBackgroundColor: options.foregroundImageBackgroundColor || ((_options$foreground8 = options.foreground) === null || _options$foreground8 === void 0 ? void 0 : (_options$foreground8$ = _options$foreground8.image) === null || _options$foreground8$ === void 0 ? void 0 : _options$foreground8$.backgroundColor), foregroundImageBorderRadius: options.foregroundImageBorderRadius || ((_options$foreground9 = options.foreground) === null || _options$foreground9 === void 0 ? void 0 : (_options$foreground9$ = _options$foreground9.image) === null || _options$foreground9$ === void 0 ? void 0 : _options$foreground9$.borderRadius), foregroundImageShadowOffsetX: options.foregroundImageShadowOffsetX || ((_options$foreground10 = options.foreground) === null || _options$foreground10 === void 0 ? void 0 : (_options$foreground11 = _options$foreground10.image) === null || _options$foreground11 === void 0 ? void 0 : _options$foreground11.shadowOffsetX), foregroundImageShadowOffsetY: options.foregroundImageShadowOffsetY || ((_options$foreground12 = options.foreground) === null || _options$foreground12 === void 0 ? void 0 : (_options$foreground13 = _options$foreground12.image) === null || _options$foreground13 === void 0 ? void 0 : _options$foreground13.shadowOffsetY), foregroundImageShadowBlur: options.foregroundImageShadowBlur || ((_options$foreground14 = options.foreground) === null || _options$foreground14 === void 0 ? void 0 : (_options$foreground15 = _options$foreground14.image) === null || _options$foreground15 === void 0 ? void 0 : _options$foreground15.shadowBlur), foregroundImageShadowColor: options.foregroundImageShadowColor || ((_options$foreground16 = options.foreground) === null || _options$foreground16 === void 0 ? void 0 : (_options$foreground17 = _options$foreground16.image) === null || _options$foreground17 === void 0 ? void 0 : _options$foreground17.shadowColor), foregroundPadding: options.foregroundPadding, positionProbeBackgroundColor: options.positionProbeBackgroundColor || ((_options$positionProb = options.positionProbe) === null || _options$positionProb === void 0 ? void 0 : _options$positionProb.backgroundColor) || ((_options$positionDete = options.positionDetection) === null || _options$positionDete === void 0 ? void 0 : _options$positionDete.backgroundColor), positionProbeForegroundColor: options.positionProbeForegroundColor || ((_options$positionProb2 = options.positionProbe) === null || _options$positionProb2 === void 0 ? void 0 : _options$positionProb2.foregroundColor) || ((_options$positionDete2 = options.positionDetection) === null || _options$positionDete2 === void 0 ? void 0 : _options$positionDete2.foregroundColor), separatorColor: options.separatorColor || ((_options$separator = options.separator) === null || _options$separator === void 0 ? void 0 : _options$separator.color), positionAdjustBackgroundColor: options.positionAdjustBackgroundColor || ((_options$positionAdju = options.positionAdjust) === null || _options$positionAdju === void 0 ? void 0 : _options$positionAdju.backgroundColor) || ((_options$alignment = options.alignment) === null || _options$alignment === void 0 ? void 0 : _options$alignment.backgroundColor), positionAdjustForegroundColor: options.positionAdjustForegroundColor || ((_options$positionAdju2 = options.positionAdjust) === null || _options$positionAdju2 === void 0 ? void 0 : _options$positionAdju2.foregroundColor) || ((_options$alignment2 = options.alignment) === null || _options$alignment2 === void 0 ? void 0 : _options$alignment2.foregroundColor), timingBackgroundColor: options.timingBackgroundColor || ((_options$timing = options.timing) === null || _options$timing === void 0 ? void 0 : _options$timing.backgroundColor), timingForegroundColor: options.timingForegroundColor || ((_options$timing2 = options.timing) === null || _options$timing2 === void 0 ? void 0 : _options$timing2.foregroundColor), typeNumberBackgroundColor: options.typeNumberBackgroundColor || ((_options$typeNumber = options.typeNumber) === null || _options$typeNumber === void 0 ? void 0 : _options$typeNumber.backgroundColor) || ((_options$versionInfor = options.versionInformation) === null || _options$versionInfor === void 0 ? void 0 : _options$versionInfor.backgroundColor), typeNumberForegroundColor: options.typeNumberForegroundColor || ((_options$typeNumber2 = options.typeNumber) === null || _options$typeNumber2 === void 0 ? void 0 : _options$typeNumber2.foregroundColor) || ((_options$versionInfor2 = options.versionInformation) === null || _options$versionInfor2 === void 0 ? void 0 : _options$versionInfor2.foregroundColor), darkBlockColor: options.darkBlockColor || ((_options$darkBlock = options.darkBlock) === null || _options$darkBlock === void 0 ? void 0 : _options$darkBlock.color) }, true); } }; /** * 制作二维码 */ UQRCode.prototype.make = function() { let { foregroundColor, backgroundColor, typeNumber, errorCorrectLevel, data, dataEncode, size, margin, useDynamicSize } = this; if (foregroundColor === backgroundColor) { console.error('[uQRCode]: foregroundColor and backgroundColor cannot be the same!'); throw new UQRCode.Error('foregroundColor and backgroundColor cannot be the same!'); } if (dataEncode) { data = utf16To8(data); } var qrc = new QRCode(typeNumber, errorCorrectLevel); qrc.addData(data); qrc.make(); this.base = qrc; this.typeNumber = qrc.typeNumber; this.modules = qrc.modules; this.moduleCount = qrc.moduleCount; if (useDynamicSize) { this.dynamicSize = Math.ceil((size - margin * 2) / qrc.moduleCount) * qrc.moduleCount + margin * 2; } else { this.dynamicSize = size; } paintData(this); paintPositionProbe(this); paintSeparator(this); paintPositionAdjust(this); paintTiming(this); paintDarkBlock(this); paintTypeNumber(this); this.isMaked = true; this.drawModules = []; }; /** * 获取绘制模块 */ UQRCode.prototype.getDrawModules = function() { if (this.drawModules && this.drawModules.length > 0) { return this.drawModules; } /* 层级:最底层 -> 绘制区域 -> 背景图片 -> 背景|前景 -> 前景图片 -> 最顶层 */ let drawModules = this.drawModules = []; let { modules, moduleCount, dynamicSize: size, areaColor, backgroundImageSrc, backgroundImageX, backgroundImageY, backgroundImageWidth, backgroundImageHeight, backgroundImageAlpha, backgroundImageBorderRadius, foregroundImageSrc, foregroundImageX, foregroundImageY, foregroundImageWidth, foregroundImageHeight, foregroundImagePadding, foregroundImageBackgroundColor, foregroundImageBorderRadius, foregroundImageShadowOffsetX, foregroundImageShadowOffsetY, foregroundImageShadowBlur, foregroundImageShadowColor } = this; /* 绘制区域 */ if (areaColor) { drawModules.push({ name: 'area', type: 'area', color: areaColor, x: 0, y: 0, width: size, height: size }); } /* 背景图片 */ if (backgroundImageSrc) { drawModules.push({ name: 'backgroundImage', type: 'image', imageSrc: backgroundImageSrc, mappingName: 'backgroundImageSrc', x: backgroundImageX, y: backgroundImageY, width: backgroundImageWidth, height: backgroundImageHeight, alpha: backgroundImageAlpha, borderRadius: backgroundImageBorderRadius }); } /* 前景 */ for (var rowI = 0; rowI < moduleCount; rowI++) { for (var colI = 0; colI < moduleCount; colI++) { var tile = modules[rowI][colI]; if (!tile.isDrawn) { if (tile.type.includes('foreground')) { drawModules.push({ name: 'foreground', type: 'tile', color: tile.color, destX: tile.destX, destY: tile.destY, destWidth: tile.destWidth, destHeight: tile.destHeight, x: tile.x, y: tile.y, width: tile.width, height: tile.height, paddingTop: tile.paddingTop, paddingRight: tile.paddingRight, paddingBottom: tile.paddingBottom, paddingLeft: tile.paddingLeft, rowIndex: rowI, colIndex: colI }); } else { drawModules.push({ name: 'background', type: 'tile', color: tile.color, destX: tile.destX, destY: tile.destY, destWidth: tile.destWidth, destHeight: tile.destHeight, x: tile.x, y: tile.y, width: tile.width, height: tile.height, paddingTop: tile.paddingTop, paddingRight: tile.paddingRight, paddingBottom: tile.paddingBottom, paddingLeft: tile.paddingLeft, rowIndex: rowI, colIndex: colI }); } /* 标记为已绘制 */ tile.isDrawn = true; } } } /* 前景图片 */ if (foregroundImageSrc) { drawModules.push({ name: 'foregroundImage', type: 'image', imageSrc: foregroundImageSrc, mappingName: 'foregroundImageSrc', x: foregroundImageX, y: foregroundImageY, width: foregroundImageWidth, height: foregroundImageHeight, padding: foregroundImagePadding, backgroundColor: foregroundImageBackgroundColor, borderRadius: foregroundImageBorderRadius, shadowOffsetX: foregroundImageShadowOffsetX, shadowOffsetY: foregroundImageShadowOffsetY, shadowBlur: foregroundImageShadowBlur, shadowColor: foregroundImageShadowColor }); } return drawModules; }; /** * 判断当前模块是否是黑块(前景部分) * @param {Number} rowI * @param {Number} colI */ UQRCode.prototype.isBlack = function(rowI, colI) { var count = this.moduleCount; return !(0 > rowI || 0 > colI || rowI >= count || colI >= count) && this.modules[rowI][colI].isBlack; }; /** * 绘制canvas方法 */ UQRCode.prototype.drawCanvas = function(reserve) { let { isMaked, canvasContext: ctx, useDynamicSize, dynamicSize: size, foregroundColor, foregroundPadding, backgroundColor, backgroundPadding, drawReserve, margin } = this; if (!isMaked) { console.error('[uQRCode]: please execute the make method first!'); return Promise.reject(new UQRCode.Error('please execute the make method first!')); } let drawModules = this.getDrawModules(); let draw = async (resolve, reject) => { try { ctx.draw(reserve); for (var i = 0; i < drawModules.length; i++) { var drawModule = drawModules[i]; ctx.save(); switch (drawModule.type) { case 'area': /* 绘制区域 */ ctx.setFillStyle(drawModule.color); ctx.fillRect(drawModule.x, drawModule.y, drawModule.width, drawModule.height); break; case 'tile': /* 绘制码点 */ var x = drawModule.x; var y = drawModule.y; var w = drawModule.width; var h = drawModule.height; ctx.setFillStyle(drawModule.color); ctx.fillRect(x, y, w, h); break; case 'image': /* 绘制图像 */ if (drawModule.name === 'backgroundImage') { /* 安卓微信小程序带小数操作旧版Canvas会出问题,而且很多地方都有问题,尽量保持整数 */ var x = Math.round(drawModule.x); var y = Math.round(drawModule.y); var w = Math.round(drawModule.width); var h = Math.round(drawModule.height); var r = Math.round(drawModule.borderRadius); if (w < 2 * r) { r = w / 2; } if (h < 2 * r) { r = h / 2; } /* 设置透明度 */ ctx.setGlobalAlpha(drawModule.alpha); /* 绘制圆角 */ if (r > 0) { ctx.beginPath(); ctx.moveTo(x + r, y); ctx.arcTo(x + w, y, x + w, y + h, r); ctx.arcTo(x + w, y + h, x, y + h, r); ctx.arcTo(x, y + h, x, y, r); ctx.arcTo(x, y, x + w, y, r); ctx.closePath(); ctx.setStrokeStyle('rgba(0,0,0,0)'); ctx.stroke(); ctx.clip(); } try { /* 绘制图片前需要先加载图片,因为图片可能是异步资源,如果没有设置loadImage方法,则需要在上层先获取到图片再传入 */ var img = await this.loadImage(drawModule.imageSrc); ctx.drawImage(img, x, y, w, h); } catch (e) { console.error(`[uQRCode]: ${drawModule.mappingName} invalid!`); throw new UQRCode.Error(`${drawModule.mappingName} invalid!`); } } else if (drawModule.name === 'foregroundImage') { /* 安卓微信小程序带小数操作旧版Canvas会出问题,而且很多地方都有问题,尽量保持整数 */ var x = Math.round(drawModule.x); var y = Math.round(drawModule.y); var w = Math.round(drawModule.width); var h = Math.round(drawModule.height); var p = Math.round(drawModule.padding); var r = Math.round(drawModule.borderRadius); if (w < 2 * r) { r = w / 2; } if (h < 2 * r) { r = h / 2; } var bx = x - p; var by = y - p; var bw = w + p * 2; var bh = h + p * 2; var br = Math.round((bw / w) * r); if (bw < 2 * br) { br = bw / 2; } if (bh < 2 * br) { br = bh / 2; } /* 绘制阴影 */ ctx.save(); ctx.setShadow(drawModule.shadowOffsetX, drawModule.shadowOffsetY, drawModule.shadowBlur, drawModule.shadowColor); /* 阴影需要一个填充块作为载体 */ if (br > 0) { ctx.beginPath(); ctx.moveTo(bx + br, by); ctx.arcTo(bx + bw, by, bx + bw, by + bh, br); ctx.arcTo(bx + bw, by + bh, bx, by + bh, br); ctx.arcTo(bx, by + bh, bx, by, br); ctx.arcTo(bx, by, bx + bw, by, br); ctx.closePath(); ctx.setFillStyle(drawModule.backgroundColor); ctx.fill(); } else { ctx.setFillStyle(drawModule.backgroundColor); ctx.fillRect(bx, by, bw, bh); } ctx.restore(); /* 绘制Padding */ ctx.save(); if (br > 0) { ctx.beginPath(); ctx.moveTo(bx + br, by); ctx.arcTo(bx + bw, by, bx + bw, by + bh, br); ctx.arcTo(bx + bw, by + bh, bx, by + bh, br); ctx.arcTo(bx, by + bh, bx, by, br); ctx.arcTo(bx, by, bx + bw, by, br); ctx.closePath(); ctx.setFillStyle(p > 0 ? drawModule.backgroundColor : 'rgba(0,0,0,0)'); ctx.fill(); } else { ctx.setFillStyle(p > 0 ? drawModule.backgroundColor : 'rgba(0,0,0,0)'); ctx.fillRect(bx, by, bw, bh); } ctx.restore(); /* 绘制圆角 */ if (r > 0) { ctx.beginPath(); ctx.moveTo(x + r, y); ctx.arcTo(x + w, y, x + w, y + h, r); ctx.arcTo(x + w, y + h, x, y + h, r); ctx.arcTo(x, y + h, x, y, r); ctx.arcTo(x, y, x + w, y, r); ctx.closePath(); ctx.setStrokeStyle('rgba(0,0,0,0)'); ctx.stroke(); ctx.clip(); } try { /* 绘制图片前需要先加载图片,因为图片可能是异步资源,如果没有设置loadImage方法,则需要在上层先获取到图片再传入 */ var img = await this.loadImage(drawModule.imageSrc); ctx.drawImage(img, x, y, w, h); } catch (e) { console.error(`[uQRCode]: ${drawModule.mappingName} invalid!`); throw new UQRCode.Error(`${drawModule.mappingName} invalid!`); } } break; } /* gcanvas需要每一阶段都draw一下,否则重绘有问题,例如uni-app nvue绘制图片会失败 */ if (drawReserve) { ctx.draw(true); } ctx.restore(); } ctx.draw(true); /* 某些平台的draw回调不一定会触发,故resolve不放在draw回调中 */ setTimeout(resolve, 150); } catch (e) { reject(e); } }; return new Promise((resolve, reject) => { /* 完成绘制 */ draw(resolve, reject); }); }; /** * 绘制canvas方法,兼容v3.2.0-v3.4.5版本的写法 */ UQRCode.prototype.draw = function(reserve) { return this.drawCanvas(reserve); }; /** * 注册实例插件 * @param {Function} plugin * 写扩展插件时需注意,因微信官方旧版Canvas未完全依照Web Canvas API设计,安卓并未兼容,如需要H5和微信小程序旧版Canvas同时兼容,需要在扩展函数里加入这些API的兼容。(如当前未补充的:setLineCap、setTransform、setStrokeStyle等与Web Canvas不一致的API) */ UQRCode.prototype.register = function(plugin) { /* UQRCode, 实例属性, 是否来自实例注册 */ plugin && plugin(UQRCode, this, true); }; export { UQRCode as default };