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 = [''];
for(var row = 0; row < nCount; row++) {
aHTML.push('');
for(var col = 0; col < nCount; col++) {
aHTML.push(' ');
}
aHTML.push('
');
_el.innerHTML = aHTML.join('');
// Fix the margin values as real size.
var elTable = _el.childNodes[0];
var nLeftMarginTable = (_htOption.width - elTable.offsetWidth) / 2;
var nTopMarginTable = (_htOption.height - elTable.offsetHeight) / 2;
if(nLeftMarginTable > 0 && nTopMarginTable > 0) {
elTable.style.margin = nTopMarginTable + "px " + nLeftMarginTable + "px";
}
};
/**
* Clear the QRCode
*/
Drawing.prototype.clear = function() {
this._el.innerHTML = '';
};
return Drawing;
})() : (function() { // Drawing in Canvas
function _onMakeImage() {
this._elImage.src = this._elCanvas.toDataURL("image/png");
this._elImage.style.display = "block";
this._elCanvas.style.display = "none";
}
// Android 2.1 bug workaround
// http://code.google.com/p/android/issues/detail?id=5141
if(this._android && this._android <= 2.1) {
var factor = 1 / window.devicePixelRatio;
var drawImage = CanvasRenderingContext2D.prototype.drawImage;
CanvasRenderingContext2D.prototype.drawImage = function(image, sx, sy, sw, sh, dx, dy, dw, dh) {
if(("nodeName" in image) && /img/i.test(image.nodeName)) {
for(var i = arguments.length - 1; i >= 1; i--) {
arguments[i] = arguments[i] * factor;
}
} else if(typeof dw == "undefined") {
arguments[1] *= factor;
arguments[2] *= factor;
arguments[3] *= factor;
arguments[4] *= factor;
}
drawImage.apply(this, arguments);
};
}
/**
* Check whether the user's browser supports Data URI or not
*
* @private
* @param {Function} fSuccess Occurs if it supports Data URI
* @param {Function} fFail Occurs if it doesn't support Data URI
*/
function _safeSetDataURI(fSuccess, fFail) {
var self = this;
self._fFail = fFail;
self._fSuccess = fSuccess;
// Check it just once
if(self._bSupportDataURI === null) {
var el = document.createElement("img");
var fOnError = function() {
self._bSupportDataURI = false;
if(self._fFail) {
_fFail.call(self);
}
};
var fOnSuccess = function() {
self._bSupportDataURI = true;
if(self._fSuccess) {
self._fSuccess.call(self);
}
};
el.onabort = fOnError;
el.onerror = fOnError;
el.onload = fOnSuccess;
el.src = "data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="; // the Image contains 1px data.
return;
} else if(self._bSupportDataURI === true && self._fSuccess) {
self._fSuccess.call(self);
} else if(self._bSupportDataURI === false && self._fFail) {
self._fFail.call(self);
}
};
/**
* Drawing QRCode by using canvas
*
* @constructor
* @param {HTMLElement} el
* @param {Object} htOption QRCode Options
*/
var Drawing = function(el, htOption) {
this._bIsPainted = false;
this._android = _getAndroid();
this._htOption = htOption;
this._elCanvas = document.createElement("canvas");
this._elCanvas.width = htOption.width;
this._elCanvas.height = htOption.height;
el.appendChild(this._elCanvas);
this._el = el;
this._oContext = this._elCanvas.getContext("2d");
this._bIsPainted = false;
this._elImage = document.createElement("img");
this._elImage.alt = "Scan me!";
this._elImage.style.display = "none";
this._el.appendChild(this._elImage);
this._bSupportDataURI = null;
};
/**
* Draw the QRCode
*
* @param {QRCode} oQRCode
*/
Drawing.prototype.draw = function(oQRCode) {
var _elImage = this._elImage;
var _oContext = this._oContext;
var _htOption = this._htOption;
var nCount = oQRCode.getModuleCount();
var nWidth = _htOption.width / nCount;
var nHeight = _htOption.height / nCount;
var nRoundedWidth = Math.round(nWidth);
var nRoundedHeight = Math.round(nHeight);
_elImage.style.display = "none";
this.clear();
for(var row = 0; row < nCount; row++) {
for(var col = 0; col < nCount; col++) {
var bIsDark = oQRCode.isDark(row, col);
var nLeft = col * nWidth;
var nTop = row * nHeight;
_oContext.strokeStyle = bIsDark ? _htOption.colorDark : _htOption.colorLight;
_oContext.lineWidth = 1;
_oContext.fillStyle = bIsDark ? _htOption.colorDark : _htOption.colorLight;
_oContext.fillRect(nLeft, nTop, nWidth, nHeight);
// 안티 앨리어싱 방지 처리
_oContext.strokeRect(
Math.floor(nLeft) + 0.5,
Math.floor(nTop) + 0.5,
nRoundedWidth,
nRoundedHeight
);
_oContext.strokeRect(
Math.ceil(nLeft) - 0.5,
Math.ceil(nTop) - 0.5,
nRoundedWidth,
nRoundedHeight
);
}
}
this._bIsPainted = true;
};
/**
* Make the image from Canvas if the browser supports Data URI.
*/
Drawing.prototype.makeImage = function() {
if(this._bIsPainted) {
_safeSetDataURI.call(this, _onMakeImage);
}
};
/**
* Return whether the QRCode is painted or not
*
* @return {Boolean}
*/
Drawing.prototype.isPainted = function() {
return this._bIsPainted;
};
/**
* Clear the QRCode
*/
Drawing.prototype.clear = function() {
this._oContext.clearRect(0, 0, this._elCanvas.width, this._elCanvas.height);
this._bIsPainted = false;
};
/**
* @private
* @param {Number} nNumber
*/
Drawing.prototype.round = function(nNumber) {
if(!nNumber) {
return nNumber;
}
return Math.floor(nNumber * 1000) / 1000;
};
return Drawing;
})();
/**
* Get the type by string length
*
* @private
* @param {String} sText
* @param {Number} nCorrectLevel
* @return {Number} type
*/
function _getTypeNumber(sText, nCorrectLevel) {
var nType = 1;
var length = _getUTF8Length(sText);
for(var i = 0, len = QRCodeLimitLength.length; i <= len; i++) {
var nLimit = 0;
switch(nCorrectLevel) {
case QRErrorCorrectLevel.L:
nLimit = QRCodeLimitLength[i][0];
break;
case QRErrorCorrectLevel.M:
nLimit = QRCodeLimitLength[i][1];
break;
case QRErrorCorrectLevel.Q:
nLimit = QRCodeLimitLength[i][2];
break;
case QRErrorCorrectLevel.H:
nLimit = QRCodeLimitLength[i][3];
break;
}
if(length <= nLimit) {
break;
} else {
nType++;
}
}
if(nType > QRCodeLimitLength.length) {
throw new Error("Too long data");
}
return nType;
}
function _getUTF8Length(sText) {
var replacedText = encodeURI(sText).toString().replace(/\%[0-9a-fA-F]{2}/g, 'a');
return replacedText.length + (replacedText.length != sText ? 3 : 0);
}
/**
* @class QRCode
* @constructor
* @example
* new QRCode(document.getElementById("test"), "http://jindo.dev.naver.com/collie");
*
* @example
* var oQRCode = new QRCode("test", {
* text : "http://naver.com",
* width : 128,
* height : 128
* });
*
* oQRCode.clear(); // Clear the QRCode.
* oQRCode.makeCode("http://map.naver.com"); // Re-create the QRCode.
*
* @param {HTMLElement|String} el target element or 'id' attribute of element.
* @param {Object|String} vOption
* @param {String} vOption.text QRCode link data
* @param {Number} [vOption.width=256]
* @param {Number} [vOption.height=256]
* @param {String} [vOption.colorDark="#000000"]
* @param {String} [vOption.colorLight="#ffffff"]
* @param {QRCode.CorrectLevel} [vOption.correctLevel=QRCode.CorrectLevel.H] [L|M|Q|H]
*/
QRCode = function(el, vOption) {
this._htOption = {
width: 256,
height: 256,
typeNumber: 4,
colorDark: "#000000",
colorLight: "#ffffff",
correctLevel: QRErrorCorrectLevel.H
};
if(typeof vOption === 'string') {
vOption = {
text: vOption
};
}
// Overwrites options
if(vOption) {
for(var i in vOption) {
this._htOption[i] = vOption[i];
}
}
if(typeof el == "string") {
el = document.getElementById(el);
}
this._android = _getAndroid();
this._el = el;
this._oQRCode = null;
this._oDrawing = new Drawing(this._el, this._htOption);
if(this._htOption.text) {
this.makeCode(this._htOption.text);
}
};
/**
* Make the QRCode
*
* @param {String} sText link data
*/
QRCode.prototype.makeCode = function(sText) {
this._oQRCode = new QRCodeModel(_getTypeNumber(sText, this._htOption.correctLevel), this._htOption.correctLevel);
this._oQRCode.addData(sText);
this._oQRCode.make();
this._el.title = sText;
this._oDrawing.draw(this._oQRCode);
this.makeImage();
};
/**
* Make the Image from Canvas element
* - It occurs automatically
* - Android below 3 doesn't support Data-URI spec.
*
* @private
*/
QRCode.prototype.makeImage = function() {
if(typeof this._oDrawing.makeImage == "function" && (!this._android || this._android >= 3)) {
this._oDrawing.makeImage();
}
};
/**
* Clear the QRCode
*/
QRCode.prototype.clear = function() {
this._oDrawing.clear();
};
/**
* @name QRCode.CorrectLevel
*/
QRCode.CorrectLevel = QRErrorCorrectLevel;
})();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...