awesome-qr
Version:
An awesome QR code generator written in JavaScript.
1,392 lines (1,319 loc) • 53.3 kB
JavaScript
/**
* Awesome-qr.js
* https://github.com/SumiMakito/Awesome-qr.js
*
* Copyright © 2017 Makito <master@keep.moe>, https://www.keep.moe/
*
* Licensed under Apache License 2.0 License.
* Copyright (c) 2017 Makito, https://www.keep.moe
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @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 <a href="http://www.d-project.com/" target="_blank">http://www.d-project.com/</a>
* @see <a href="http://jeromeetienne.github.com/jquery-qrcode/" target="_blank">http://jeromeetienne.github.com/jquery-qrcode/</a>
*/
let fs = require('fs');
let http = require('http');
let url = require('url');
let Canvas = require('canvas');
let Image = Canvas.Image;
let request = require('request');
var AwesomeQRCode;
// QR CODE CORE LIBRARY DEFINITION START
// SHOULD NOT BE MODIFIED
//
// 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 = [];
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 = []
}
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() {
/////////////////////////////////////////////
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(!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);
if (this.typeNumber >= 7) {
this.setupTypeNumber(test)
}
if (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;
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] = !0
} else {
this.modules[row + r][col + c] = !1
}
}
}
},
getBestMaskPattern: function() {
var minLostPoint = 0;
var 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);
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] = !0
} else {
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;
var bits = QRUtil.getBCHTypeInfo(data);
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
}
}
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
}
}
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 (!0) {
for (var c = 0; c < 2; c++) {
if (this.modules[row][col - c] == null) {
var dark = !1;
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
}
}
}
}
};
QRCodeModel.PAD0 = 0xEC;
QRCodeModel.PAD1 = 0x11;
QRCodeModel.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)
}
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 + ")")
}
if (buffer.getLengthInBits() + 4 <= totalDataCount * 8) {
buffer.put(0, 4)
}
while (buffer.getLengthInBits() % 8 != 0) {
buffer.putBit(!1)
}
while (!0) {
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;
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
};
var QRMode = { MODE_NUMBER: 1 << 0, MODE_ALPHA_NUM: 1 << 1, MODE_8BIT_BYTE: 1 << 2, MODE_KANJI: 1 << 3 };
var QRErrorCorrectLevel = { L: 1, M: 0, Q: 3, H: 2 };
var QRMaskPattern = {
PATTERN000: 0,
PATTERN001: 1,
PATTERN010: 2,
PATTERN011: 3,
PATTERN100: 4,
PATTERN101: 5,
PATTERN110: 6,
PATTERN111: 7
};
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) {
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) {
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;
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)
}
}
}
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
}
}
}
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
}
}
}
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
}
};
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
}
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)
}
return new QRPolynomial(num, 0).mod(e)
}
};
function QRRSBlock(totalCount, dataCount) {
this.totalCount = totalCount;
this.dataCount = dataCount
}
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;
var list = [];
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
}
};
function QRBitBuffer() {
this.buffer = [];
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++
}
};
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]
]
// END OF QR CODE CORE LIBRARY DEFINITION
var Drawing = (function() { // Drawing in Canvas
var Drawing = function(htOption) {
this._bIsPainted = false;
this._htOption = htOption;
this._elCanvas = new Canvas(htOption.size, htOption.size);
//this._elCanvas.width = htOption.size;
//this._elCanvas.height = htOption.size;
this._oContext = this._elCanvas.getContext('2d');
//this._oContext = this._elCanvas.getContext("2d");
this._bIsPainted = false;
this._bSupportDataURI = null;
this._callback = htOption.callback;
this._bindElement = htOption.bindElement;
};
Drawing.prototype.draw = function(oQRCode) {
var _htOption = this._htOption;
var nCount = oQRCode.getModuleCount();
var rawSize = _htOption.size;
var rawMargin = _htOption.margin;
if (rawMargin < 0 || rawMargin * 2 >= rawSize) {
rawMargin = 0;
}
var margin = Math.ceil(rawMargin);
var rawViewportSize = rawSize - 2 * rawMargin;
var whiteMargin = _htOption.whiteMargin;
var backgroundDimming = _htOption.backgroundDimming;
var nSize = Math.ceil(rawViewportSize / nCount);
var viewportSize = nSize * nCount;
var size = viewportSize + 2 * margin;
var _tCanvas = new Canvas(size, size);
var _oContext = _tCanvas.getContext("2d");
//_tCanvas.width = size;
//_tCanvas.height = size;
var dotScale = _htOption.dotScale;
this.clear();
if (dotScale <= 0 || dotScale > 1) {
throw new Error("Scale should be in range (0, 1).")
}
// Leave room for margin
_oContext.save();
_oContext.translate(margin, margin);
var _bkgCanvas = new Canvas(size, size);
//_bkgCanvas.width = size;
//_bkgCanvas.height = size;
var _bContext = _bkgCanvas.getContext("2d");
var _maskCanvas = undefined;
var _mContext = undefined;
if (_htOption.backgroundImage !== undefined) {
console.log("No bkg");
if (_htOption.autoColor) {
console.log(typeof(_htOption.backgroundImage));
console.log(_htOption.backgroundImage);
var avgRGB = getAverageRGB(_htOption.backgroundImage);
_htOption.colorDark = "rgb(" + avgRGB.r + ", " + avgRGB.g + ", " + avgRGB.b + ")";
}
if (false && _htOption.maskedDots) {
_maskCanvas = new Canvas(size, size);
//_maskCanvas.width = size;
//_maskCanvas.height = size;
_mContext = _maskCanvas.getContext("2d");
/*
_mContext.drawImage(_htOption.backgroundImage,
0, 0, _htOption.backgroundImage.width, _htOption.backgroundImage.height,
whiteMargin ? 0 : -margin, whiteMargin ? 0 : -margin, whiteMargin ? viewportSize : size, whiteMargin ? viewportSize : size);
*/
_mContext.drawImage(_htOption.backgroundImage,
0, 0, _htOption.backgroundImage.width, _htOption.backgroundImage.height,
0, 0, size, size);
_bContext.rect(0, 0, size, size);
_bContext.fillStyle = "#ffffff";
_bContext.fill();
} else {
/*
_bContext.drawImage(_htOption.backgroundImage,
0, 0, _htOption.backgroundImage.width, _htOption.backgroundImage.height,
whiteMargin ? 0 : -margin, whiteMargin ? 0 : -margin, whiteMargin ? viewportSize : size, whiteMargin ? viewportSize : size);
*/
_bContext.drawImage(_htOption.backgroundImage,
0, 0, _htOption.backgroundImage.width, _htOption.backgroundImage.height,
0, 0, size, size);
_bContext.rect(0, 0, size, size);
_bContext.fillStyle = backgroundDimming;
_bContext.fill();
}
} else {
console.log("has bkg");
_bContext.rect(0, 0, size, size);
_bContext.fillStyle = "#ffffff";
_bContext.fill();
}
if (false && _htOption.binarize) {
_htOption.colorDark = "#000000";
_htOption.colorLight = "#FFFFFF";
}
var agnPatternCenter = QRUtil.getPatternPosition(oQRCode.typeNumber);
var xyOffset = (1 - dotScale) * 0.5;
for (var row = 0; row < nCount; row++) {
for (var col = 0; col < nCount; col++) {
var bIsDark = oQRCode.isDark(row, col);
// var isBlkPosCtr = ((col < 8 && (row < 8 || row >= nCount - 8)) || (col >= nCount - 8 && row < 8) || (col < nCount - 4 && col >= nCount - 4 - 5 && row < nCount - 4 && row >= nCount - 4 - 5));
var isBlkPosCtr = ((col < 8 && (row < 8 || row >= nCount - 8)) || (col >= nCount - 8 && row < 8));
var isBlkPos = ((col < 7 && (row < 7 || row >= nCount - 7)) || (col >= nCount - 7 && row < 7));
var bProtected = (row === 6 || col === 6 || isBlkPosCtr);
for (var i = 0; i < agnPatternCenter.length - 1; i++) {
bProtected = bProtected || (row >= agnPatternCenter[i] - 2 && row <= agnPatternCenter[i] + 2 && col >= agnPatternCenter[i] - 2 && col <= agnPatternCenter[i] + 2);
}
var nLeft = col * nSize + (bProtected ? 0 : (xyOffset * nSize));
var nTop = row * nSize + (bProtected ? 0 : (xyOffset * nSize));
_oContext.strokeStyle = bIsDark ? _htOption.colorDark : _htOption.colorLight;
_oContext.lineWidth = 0.5;
_oContext.fillStyle = bIsDark ? _htOption.colorDark : "rgba(255, 255, 255, 0.6)"; //_htOption.colorLight;
if (agnPatternCenter.length === 0) {
// if align pattern list is empty, then it means that we don't need to leave room for the align patterns
if (!bProtected)
_fillRectWithMask(_oContext, nLeft, nTop, (bProtected ? (isBlkPosCtr ? 1 : 1) : dotScale) * nSize, (bProtected ? (isBlkPosCtr ? 1 : 1) : dotScale) * nSize, _maskCanvas, bIsDark);
} else {
var inAgnRange = ((col < nCount - 4 && col >= nCount - 4 - 5 && row < nCount - 4 && row >= nCount - 4 - 5));
if (!bProtected && !inAgnRange)
_fillRectWithMask(_oContext, nLeft, nTop, (bProtected ? (isBlkPosCtr ? 1 : 1) : dotScale) * nSize, (bProtected ? (isBlkPosCtr ? 1 : 1) : dotScale) * nSize, _maskCanvas, bIsDark);
}
}
}
console.log("POSITION protectors");
// Draw POSITION protectors
var protectorStyle = "rgba(255, 255, 255, 0.6)";
_oContext.fillStyle = protectorStyle;
_oContext.fillRect(0, 0, 8 * nSize, 8 * nSize);
_oContext.fillRect(0, (nCount - 8) * nSize, 8 * nSize, 8 * nSize);
_oContext.fillRect((nCount - 8) * nSize, 0, 8 * nSize, 8 * nSize);
_oContext.fillRect(8 * nSize, 6 * nSize, (nCount - 8 - 8) * nSize, nSize);
_oContext.fillRect(6 * nSize, 8 * nSize, nSize, (nCount - 8 - 8) * nSize);
console.log("ALIGN protectors");
// Draw ALIGN protectors
var edgeCenter = agnPatternCenter[agnPatternCenter.length - 1];
for (var i = 0; i < agnPatternCenter.length; i++) {
for (var j = 0; j < agnPatternCenter.length; j++) {
var agnX = agnPatternCenter[j];
var agnY = agnPatternCenter[i];
if (agnX === 6 && (agnY === 6 || agnY === edgeCenter)) {
continue;
} else if (agnY === 6 && (agnX === 6 || agnX === edgeCenter)) {
continue;
} else if (agnX !== 6 && agnX !== edgeCenter && agnY !== 6 && agnY !== edgeCenter) {
_drawAlignProtector(_oContext, agnX, agnY, nSize, nSize);
} else {
_drawAlignProtector(_oContext, agnX, agnY, nSize, nSize);
}
// console.log("agnX=" + agnX + ", agnY=" + agnX);
}
}
// Draw POSITION patterns
_oContext.fillStyle = _htOption.colorDark;
_oContext.fillRect(0, 0, 7 * nSize, nSize);
_oContext.fillRect((nCount - 7) * nSize, 0, 7 * nSize, nSize);
_oContext.fillRect(0, 6 * nSize, 7 * nSize, nSize);
_oContext.fillRect((nCount - 7) * nSize, 6 * nSize, 7 * nSize, nSize);
_oContext.fillRect(0, (nCount - 7) * nSize, 7 * nSize, nSize);
_oContext.fillRect(0, (nCount - 7 + 6) * nSize, 7 * nSize, nSize);
_oContext.fillRect(0, 0, nSize, 7 * nSize);
_oContext.fillRect(6 * nSize, 0, nSize, 7 * nSize);
_oContext.fillRect((nCount - 7) * nSize, 0, nSize, 7 * nSize);
_oContext.fillRect((nCount - 7 + 6) * nSize, 0, nSize, 7 * nSize);
_oContext.fillRect(0, (nCount - 7) * nSize, nSize, 7 * nSize);
_oContext.fillRect(6 * nSize, (nCount - 7) * nSize, nSize, 7 * nSize);
_oContext.fillRect(2 * nSize, 2 * nSize, 3 * nSize, 3 * nSize);
_oContext.fillRect((nCount - 7 + 2) * nSize, 2 * nSize, 3 * nSize, 3 * nSize);
_oContext.fillRect(2 * nSize, (nCount - 7 + 2) * nSize, 3 * nSize, 3 * nSize);
for (var i = 0; i < nCount - 8; i += 2) {
_oContext.fillRect((8 + i) * nSize, 6 * nSize, nSize, nSize);
_oContext.fillRect(6 * nSize, (8 + i) * nSize, nSize, nSize);
}
for (var i = 0; i < agnPatternCenter.length; i++) {
for (var j = 0; j < agnPatternCenter.length; j++) {
var agnX = agnPatternCenter[j];
var agnY = agnPatternCenter[i];
if (agnX === 6 && (agnY === 6 || agnY === edgeCenter)) {
continue;
} else if (agnY === 6 && (agnX === 6 || agnX === edgeCenter)) {
continue;
} else if (agnX !== 6 && agnX !== edgeCenter && agnY !== 6 && agnY !== edgeCenter) {
_oContext.fillStyle = "rgba(0, 0, 0, .2)";
_drawAlign(_oContext, agnX, agnY, nSize, nSize);
} else {
_oContext.fillStyle = _htOption.colorDark;
_drawAlign(_oContext, agnX, agnY, nSize, nSize);
}
}
}
// Fill the margin
if (whiteMargin) {
_oContext.fillStyle = '#FFFFFF';
_oContext.fillRect(-margin, -margin, size, margin);
_oContext.fillRect(-margin, viewportSize, size, margin);
_oContext.fillRect(viewportSize, -margin, margin, size);
_oContext.fillRect(-margin, -margin, margin, size);
}
if (false && _htOption.logoImage !== undefined) {
var logoScale = _htOption.logoScale;
var logoMargin = _htOption.logoMargin;
var logoCornerRadius = _htOption.logoCornerRadius;
if (logoScale <= 0 || logoScale >= 1.0) {
logoScale = 0.2;
}
if (logoMargin < 0) {
logoMargin = 0;
}
if (logoCornerRadius < 0) {
logoCornerRadius = 0;
}
_oContext.restore();
var logoSize = viewportSize * logoScale;
var x = 0.5 * (size - logoSize);
var y = x;
_oContext.fillStyle = '#FFFFFF';
_oContext.save();
_prepareRoundedCornerClip(_oContext, x - logoMargin, y - logoMargin, logoSize + 2 * logoMargin, logoSize + 2 * logoMargin, logoCornerRadius);
_oContext.clip();
_oContext.fill();
_oContext.restore();
_oContext.save();
_prepareRoundedCornerClip(_oContext, x, y, logoSize, logoSize, logoCornerRadius);
_oContext.clip();
_oContext.drawImage(_htOption.logoImage, x, y, logoSize, logoSize);
_oContext.restore();
}
// Swap and merge the foreground and the background
_bContext.drawImage(_tCanvas, 0, 0, size, size);
_oContext.drawImage(_bkgCanvas, -margin, -margin, size, size);
// Binarize the final image
if (false && _htOption.binarize) {
var pixels = _oContext.getImageData(0, 0, size, size);
var threshold = 128;
if (parseInt(_htOption.binarizeThreshold) > 0 && parseInt(_htOption.binarizeThreshold) < 255) {
threshold = parseInt(_htOption.binarizeThreshold);
}
for (var i = 0; i < pixels.data.length; i += 4) {
// rgb in [0, 255]
var R = pixels.data[i];
var G = pixels.data[i + 1];
var B = pixels.data[i + 2];
var sum = _greyscale(R, G, B);
if (sum > threshold) {
pixels.data[i] = 255;
pixels.data[i + 1] = 255;
pixels.data[i + 2] = 255;
} else {
pixels.data[i] = 0;
pixels.data[i + 1] = 0;
pixels.data[i + 2] = 0;
}
}
_oContext.putImageData(pixels, 0, 0);
}
// Scale the final image
var _fCanvas = new Canvas(rawSize, rawSize); //document.createElement("canvas");
var _fContext = _fCanvas.getContext("2d");
//_fCanvas.width = rawSize;
//_fCanvas.height = rawSize;
_fContext.drawImage(_tCanvas, 0, 0, rawSize, rawSize);
this._elCanvas = _fCanvas;
// Painting work completed
this._bIsPainted = true;
if (this._callback !== undefined && typeof(this._callback) === "function") {
this._callback(this._elCanvas.toBuffer());
}
};
Drawing.prototype.isPainted = function() {
return this._bIsPainted;
};
Drawing.prototype.clear = function() {
this._oContext.clearRect(0, 0, this._elCanvas.width, this._elCanvas.height);
this._bIsPainted = false;
};
Drawing.prototype.round = function(nNumber) {
if (!nNumber) {
return nNumber;
}
return Math.floor(nNumber * 1000) / 1000;
};
return Drawing;
})();
// Utilities and useful helpers
function _getUTF8Length(sText) {
var replacedText = encodeURI(sText).toString().replace(/\%[0-9a-fA-F]{2}/g, 'a');
return replacedText.length + (replacedText.length != sText ? 3 : 0);
}
function _prepareRoundedCornerClip(ctx, x, y, w, h, r) {
ctx.beginPath();
ctx.moveTo(x, 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();
}
function _setPixel(imageData, p, r, g, b, a) {
index = p * 4;
imageData.data[index + 0] = r;
imageData.data[index + 1] = g;
imageData.data[index + 2] = b;
imageData.data[index + 3] = a;
}
function _greyscale(r, g, b) {
return 0.30 * r + 0.59 * b + 0.11 * b;
}
function _fillRectWithMask(canvas, x, y, w, h, maskSrc, bDark) {
//console.log("maskSrc=" + maskSrc);
if (maskSrc === undefined) {
canvas.fillRect(x, y, w, h);
} else {
canvas.drawImage(maskSrc, x, y, w, h, x, y, w, h);
var fill_ = canvas.fillStyle;
canvas.fillStyle = bDark ? "rgba(0, 0, 0, .5)" : "rgba(255, 255, 255, .7)";
canvas.fillRect(x, y, w, h);
canvas.fillStyle = fill_;
}
}
function _drawAlignProtector(context, centerX, centerY, nWidth, nHeight) {
context.clearRect((centerX - 2) * nWidth, (centerY - 2) * nHeight, 5 * nWidth, 5 * nHeight);
context.fillRect((centerX - 2) * nWidth, (centerY - 2) * nHeight, 5 * nWidth, 5 * nHeight);
}
function _drawAlign(context, centerX, centerY, nWidth, nHeight) {
context.fillRect((centerX - 2) * nWidth, (centerY - 2) * nHeight, nWidth, 4 * nHeight);
context.fillRect((centerX + 2) * nWidth, (centerY - 2 + 1) * nHeight, nWidth, 4 * nHeight);
context.fillRect((centerX - 2 + 1) * nWidth, (centerY - 2) * nHeight, 4 * nWidth, nHeight);
context.fillRect((centerX - 2) * nWidth, (centerY + 2) * nHeight, 4 * nWidth, nHeight);
context.fillRect(centerX * nWidth, centerY * nHeight, nWidth, nHeight);
}
AwesomeQRCode = function() {};
AwesomeQRCode.prototype.create = function(vOption) {
console.log(vOption);
try {
this._htOption = {
size: 800,
margin: 20,
typeNumber: 4,
colorDark: "#000000",
colorLight: "#ffffff",
correctLevel: QRErrorCorrectLevel.M,
backgroundImage: undefined,
backgroundDimming: 'rgba(0,0,0,0)',
whiteMargin: true,
dotScale: 0.35,
autoColor: true,
callback: undefined
};
console.log("validating");
if (typeof vOption === 'string') {
vOption = {
text: vOption
};
}
if (vOption) {
for (var i in vOptio