QRCode.js 41 KB

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  1. Namespace.register("U.UF.QR"); //二维码命名空间
  2. /**
  3. * 生成二维码
  4. *
  5. * @param {number} 二维码元素宽度
  6. * @param {number} 二维码元素高度
  7. * @param {string} 二维码背景色
  8. * @param {string} 二维码前景色
  9. * @param {string || object} 二维码内容
  10. * @param {object} 二维码追加元素
  11. */
  12. U.UF.QR.generate = function (w, h, d, l, v, g) {
  13. //清空生成地
  14. g.innerHTML = "";
  15. //创建一个对象
  16. var qrcode = new QRCode(g, {
  17. width: w,
  18. height: h,
  19. colorDark: d,
  20. colorLight: l,
  21. correctLevel: QRCode.CorrectLevel.H //容错率
  22. });
  23. U.UF.QR.makeCode = function (v) {
  24. //绘制
  25. qrcode.makeCode(v);
  26. }
  27. U.UF.QR.makeCode(v);
  28. }
  29. /**
  30. * @fileoverview
  31. * - Using the 'QRCode for Javascript library'
  32. * - Fixed dataset of 'QRCode for Javascript library' for support full-spec.
  33. * - this library has no dependencies.
  34. *
  35. * @author davidshimjs
  36. * @see <a href="http://www.d-project.com/" target="_blank">http://www.d-project.com/</a>
  37. * @see <a href="http://jeromeetienne.github.com/jquery-qrcode/" target="_blank">http://jeromeetienne.github.com/jquery-qrcode/</a>
  38. */
  39. var QRCode;
  40. (function () {
  41. //---------------------------------------------------------------------
  42. // QRCode for JavaScript
  43. //
  44. // Copyright (c) 2009 Kazuhiko Arase
  45. //
  46. // URL: http://www.d-project.com/
  47. //
  48. // Licensed under the MIT license:
  49. // http://www.opensource.org/licenses/mit-license.php
  50. //
  51. // The word "QR Code" is registered trademark of
  52. // DENSO WAVE INCORPORATED
  53. // http://www.denso-wave.com/qrcode/faqpatent-e.html
  54. //
  55. //---------------------------------------------------------------------
  56. function QR8bitByte(data) {
  57. this.mode = QRMode.MODE_8BIT_BYTE;
  58. this.data = data;
  59. this.parsedData = [];
  60. // Added to support UTF-8 Characters
  61. for (var i = 0, l = this.data.length; i < l; i++) {
  62. var byteArray = [];
  63. var code = this.data.charCodeAt(i);
  64. if (code > 0x10000) {
  65. byteArray[0] = 0xF0 | ((code & 0x1C0000) >>> 18);
  66. byteArray[1] = 0x80 | ((code & 0x3F000) >>> 12);
  67. byteArray[2] = 0x80 | ((code & 0xFC0) >>> 6);
  68. byteArray[3] = 0x80 | (code & 0x3F);
  69. } else if (code > 0x800) {
  70. byteArray[0] = 0xE0 | ((code & 0xF000) >>> 12);
  71. byteArray[1] = 0x80 | ((code & 0xFC0) >>> 6);
  72. byteArray[2] = 0x80 | (code & 0x3F);
  73. } else if (code > 0x80) {
  74. byteArray[0] = 0xC0 | ((code & 0x7C0) >>> 6);
  75. byteArray[1] = 0x80 | (code & 0x3F);
  76. } else {
  77. byteArray[0] = code;
  78. }
  79. this.parsedData.push(byteArray);
  80. }
  81. this.parsedData = Array.prototype.concat.apply([], this.parsedData);
  82. if (this.parsedData.length != this.data.length) {
  83. this.parsedData.unshift(191);
  84. this.parsedData.unshift(187);
  85. this.parsedData.unshift(239);
  86. }
  87. }
  88. QR8bitByte.prototype = {
  89. getLength: function (buffer) {
  90. return this.parsedData.length;
  91. },
  92. write: function (buffer) {
  93. for (var i = 0, l = this.parsedData.length; i < l; i++) {
  94. buffer.put(this.parsedData[i], 8);
  95. }
  96. }
  97. };
  98. function QRCodeModel(typeNumber, errorCorrectLevel) {
  99. this.typeNumber = typeNumber;
  100. this.errorCorrectLevel = errorCorrectLevel;
  101. this.modules = null;
  102. this.moduleCount = 0;
  103. this.dataCache = null;
  104. this.dataList = [];
  105. }
  106. QRCodeModel.prototype = { addData: function (data) { var newData = new QR8bitByte(data); this.dataList.push(newData); this.dataCache = null; }, isDark: function (row, col) {
  107. if (row < 0 || this.moduleCount <= row || col < 0 || this.moduleCount <= col) { throw new Error(row + "," + col); }
  108. return this.modules[row][col];
  109. }, getModuleCount: function () { return this.moduleCount; }, make: function () { this.makeImpl(false, this.getBestMaskPattern()); }, makeImpl: function (test, maskPattern) {
  110. 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; } }
  111. 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); }
  112. if (this.dataCache == null) { this.dataCache = QRCodeModel.createData(this.typeNumber, this.errorCorrectLevel, this.dataList); }
  113. this.mapData(this.dataCache, maskPattern);
  114. }, 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 () {
  115. 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; } }
  116. return pattern;
  117. }, createMovieClip: function (target_mc, instance_name, depth) {
  118. 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(); } } }
  119. return qr_mc;
  120. }, setupTimingPattern: function () {
  121. for (var r = 8; r < this.moduleCount - 8; r++) {
  122. if (this.modules[r][6] != null) { continue; }
  123. this.modules[r][6] = (r % 2 == 0);
  124. }
  125. for (var c = 8; c < this.moduleCount - 8; c++) {
  126. if (this.modules[6][c] != null) { continue; }
  127. this.modules[6][c] = (c % 2 == 0);
  128. }
  129. }, setupPositionAdjustPattern: function () {
  130. var pos = QRUtil.getPatternPosition(this.typeNumber); for (var i = 0; i < pos.length; i++) {
  131. for (var j = 0; j < pos.length; j++) {
  132. var row = pos[i]; var col = pos[j]; if (this.modules[row][col] != null) { continue; }
  133. 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; } } }
  134. }
  135. }
  136. }, setupTypeNumber: function (test) {
  137. 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; }
  138. 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; }
  139. }, setupTypeInfo: function (test, maskPattern) {
  140. 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; } }
  141. 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; } }
  142. this.modules[this.moduleCount - 8][8] = (!test);
  143. }, mapData: function (data, maskPattern) {
  144. var inc = -1; var row = this.moduleCount - 1; var bitIndex = 7; var byteIndex = 0; for (var col = this.moduleCount - 1; col > 0; col -= 2) {
  145. if (col == 6) col--; while (true) {
  146. for (var c = 0; c < 2; c++) {
  147. if (this.modules[row][col - c] == null) {
  148. var dark = false; if (byteIndex < data.length) { dark = (((data[byteIndex] >>> bitIndex) & 1) == 1); }
  149. var mask = QRUtil.getMask(maskPattern, row, col - c); if (mask) { dark = !dark; }
  150. this.modules[row][col - c] = dark; bitIndex--; if (bitIndex == -1) { byteIndex++; bitIndex = 7; }
  151. }
  152. }
  153. row += inc; if (row < 0 || this.moduleCount <= row) { row -= inc; inc = -inc; break; }
  154. }
  155. }
  156. }
  157. }; QRCodeModel.PAD0 = 0xEC; QRCodeModel.PAD1 = 0x11; QRCodeModel.createData = function (typeNumber, errorCorrectLevel, dataList) {
  158. 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); }
  159. var totalDataCount = 0; for (var i = 0; i < rsBlocks.length; i++) { totalDataCount += rsBlocks[i].dataCount; }
  160. if (buffer.getLengthInBits() > totalDataCount * 8) {
  161. throw new Error("code length overflow. ("
  162. + buffer.getLengthInBits()
  163. + ">"
  164. + totalDataCount * 8
  165. + ")");
  166. }
  167. if (buffer.getLengthInBits() + 4 <= totalDataCount * 8) { buffer.put(0, 4); }
  168. while (buffer.getLengthInBits() % 8 != 0) { buffer.putBit(false); }
  169. while (true) {
  170. if (buffer.getLengthInBits() >= totalDataCount * 8) { break; }
  171. buffer.put(QRCodeModel.PAD0, 8); if (buffer.getLengthInBits() >= totalDataCount * 8) { break; }
  172. buffer.put(QRCodeModel.PAD1, 8);
  173. }
  174. return QRCodeModel.createBytes(buffer, rsBlocks);
  175. }; QRCodeModel.createBytes = function (buffer, rsBlocks) {
  176. 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++) {
  177. 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]; }
  178. 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; }
  179. }
  180. var totalCodeCount = 0; for (var i = 0; i < rsBlocks.length; i++) { totalCodeCount += rsBlocks[i].totalCount; }
  181. 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]; } } }
  182. 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]; } } }
  183. return data;
  184. }; 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) {
  185. var d = data << 10; while (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G15) >= 0) { d ^= (QRUtil.G15 << (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G15))); }
  186. return ((data << 10) | d) ^ QRUtil.G15_MASK;
  187. }, getBCHTypeNumber: function (data) {
  188. var d = data << 12; while (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G18) >= 0) { d ^= (QRUtil.G18 << (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G18))); }
  189. return (data << 12) | d;
  190. }, getBCHDigit: function (data) {
  191. var digit = 0; while (data != 0) { digit++; data >>>= 1; }
  192. return digit;
  193. }, 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) {
  194. var a = new QRPolynomial([1], 0); for (var i = 0; i < errorCorrectLength; i++) { a = a.multiply(new QRPolynomial([1, QRMath.gexp(i)], 0)); }
  195. return a;
  196. }, 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) {
  197. var moduleCount = qrCode.getModuleCount(); var lostPoint = 0; for (var row = 0; row < moduleCount; row++) {
  198. for (var col = 0; col < moduleCount; col++) {
  199. var sameCount = 0; var dark = qrCode.isDark(row, col); for (var r = -1; r <= 1; r++) {
  200. if (row + r < 0 || moduleCount <= row + r) { continue; }
  201. for (var c = -1; c <= 1; c++) {
  202. if (col + c < 0 || moduleCount <= col + c) { continue; }
  203. if (r == 0 && c == 0) { continue; }
  204. if (dark == qrCode.isDark(row + r, col + c)) { sameCount++; }
  205. }
  206. }
  207. if (sameCount > 5) { lostPoint += (3 + sameCount - 5); }
  208. }
  209. }
  210. 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; } } }
  211. 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; } } }
  212. 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; } } }
  213. var darkCount = 0; for (var col = 0; col < moduleCount; col++) { for (var row = 0; row < moduleCount; row++) { if (qrCode.isDark(row, col)) { darkCount++; } } }
  214. var ratio = Math.abs(100 * darkCount / moduleCount / moduleCount - 50) / 5; lostPoint += ratio * 10; return lostPoint;
  215. }
  216. }; var QRMath = { glog: function (n) {
  217. if (n < 1) { throw new Error("glog(" + n + ")"); }
  218. return QRMath.LOG_TABLE[n];
  219. }, gexp: function (n) {
  220. while (n < 0) { n += 255; }
  221. while (n >= 256) { n -= 255; }
  222. return QRMath.EXP_TABLE[n];
  223. }, EXP_TABLE: new Array(256), LOG_TABLE: new Array(256)
  224. }; for (var i = 0; i < 8; i++) { QRMath.EXP_TABLE[i] = 1 << i; }
  225. 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]; }
  226. for (var i = 0; i < 255; i++) { QRMath.LOG_TABLE[QRMath.EXP_TABLE[i]] = i; }
  227. function QRPolynomial(num, shift) {
  228. if (num.length == undefined) { throw new Error(num.length + "/" + shift); }
  229. var offset = 0; while (offset < num.length && num[offset] == 0) { offset++; }
  230. this.num = new Array(num.length - offset + shift); for (var i = 0; i < num.length - offset; i++) { this.num[i] = num[i + offset]; }
  231. }
  232. QRPolynomial.prototype = { get: function (index) { return this.num[index]; }, getLength: function () { return this.num.length; }, multiply: function (e) {
  233. 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))); } }
  234. return new QRPolynomial(num, 0);
  235. }, mod: function (e) {
  236. if (this.getLength() - e.getLength() < 0) { return this; }
  237. 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); }
  238. for (var i = 0; i < e.getLength(); i++) { num[i] ^= QRMath.gexp(QRMath.glog(e.get(i)) + ratio); }
  239. return new QRPolynomial(num, 0).mod(e);
  240. }
  241. }; function QRRSBlock(totalCount, dataCount) { this.totalCount = totalCount; this.dataCount = dataCount; }
  242. 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) {
  243. var rsBlock = QRRSBlock.getRsBlockTable(typeNumber, errorCorrectLevel); if (rsBlock == undefined) { throw new Error("bad rs block @ typeNumber:" + typeNumber + "/errorCorrectLevel:" + errorCorrectLevel); }
  244. 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)); } }
  245. return list;
  246. }; 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; }
  247. 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) {
  248. var bufIndex = Math.floor(this.length / 8); if (this.buffer.length <= bufIndex) { this.buffer.push(0); }
  249. if (bit) { this.buffer[bufIndex] |= (0x80 >>> (this.length % 8)); }
  250. this.length++;
  251. }
  252. }; 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]];
  253. function _isSupportCanvas() {
  254. return typeof CanvasRenderingContext2D != "undefined";
  255. }
  256. // android 2.x doesn't support Data-URI spec
  257. function _getAndroid() {
  258. var android = false;
  259. var sAgent = navigator.userAgent;
  260. if (/android/i.test(sAgent)) { // android
  261. android = true;
  262. var aMat = sAgent.toString().match(/android ([0-9]\.[0-9])/i);
  263. if (aMat && aMat[1]) {
  264. android = parseFloat(aMat[1]);
  265. }
  266. }
  267. return android;
  268. }
  269. var svgDrawer = (function () {
  270. var Drawing = function (el, htOption) {
  271. this._el = el;
  272. this._htOption = htOption;
  273. };
  274. Drawing.prototype.draw = function (oQRCode) {
  275. var _htOption = this._htOption;
  276. var _el = this._el;
  277. var nCount = oQRCode.getModuleCount();
  278. var nWidth = Math.floor(_htOption.width / nCount);
  279. var nHeight = Math.floor(_htOption.height / nCount);
  280. this.clear();
  281. function makeSVG(tag, attrs) {
  282. var el = document.createElementNS('http://www.w3.org/2000/svg', tag);
  283. for (var k in attrs)
  284. if (attrs.hasOwnProperty(k)) el.setAttribute(k, attrs[k]);
  285. return el;
  286. }
  287. var svg = makeSVG("svg", { 'viewBox': '0 0 ' + String(nCount) + " " + String(nCount), 'width': '100%', 'height': '100%', 'fill': _htOption.colorLight });
  288. svg.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns:xlink", "http://www.w3.org/1999/xlink");
  289. _el.appendChild(svg);
  290. svg.appendChild(makeSVG("rect", { "fill": _htOption.colorLight, "width": "100%", "height": "100%" }));
  291. svg.appendChild(makeSVG("rect", { "fill": _htOption.colorDark, "width": "1", "height": "1", "id": "template" }));
  292. for (var row = 0; row < nCount; row++) {
  293. for (var col = 0; col < nCount; col++) {
  294. if (oQRCode.isDark(row, col)) {
  295. var child = makeSVG("use", { "x": String(col), "y": String(row) });
  296. child.setAttributeNS("http://www.w3.org/1999/xlink", "href", "#template")
  297. svg.appendChild(child);
  298. }
  299. }
  300. }
  301. };
  302. Drawing.prototype.clear = function () {
  303. while (this._el.hasChildNodes())
  304. this._el.removeChild(this._el.lastChild);
  305. };
  306. return Drawing;
  307. })();
  308. var useSVG = document.documentElement.tagName.toLowerCase() === "svg";
  309. // Drawing in DOM by using Table tag
  310. var Drawing = useSVG ? svgDrawer : !_isSupportCanvas() ? (function () {
  311. var Drawing = function (el, htOption) {
  312. this._el = el;
  313. this._htOption = htOption;
  314. };
  315. /**
  316. * Draw the QRCode
  317. *
  318. * @param {QRCode} oQRCode
  319. */
  320. Drawing.prototype.draw = function (oQRCode) {
  321. var _htOption = this._htOption;
  322. var _el = this._el;
  323. var nCount = oQRCode.getModuleCount();
  324. var nWidth = Math.floor(_htOption.width / nCount);
  325. var nHeight = Math.floor(_htOption.height / nCount);
  326. var aHTML = ['<table style="border:0;border-collapse:collapse;">'];
  327. for (var row = 0; row < nCount; row++) {
  328. aHTML.push('<tr>');
  329. for (var col = 0; col < nCount; col++) {
  330. aHTML.push('<td style="border:0;border-collapse:collapse;padding:0;margin:0;width:' + nWidth + 'px;height:' + nHeight + 'px;background-color:' + (oQRCode.isDark(row, col) ? _htOption.colorDark : _htOption.colorLight) + ';"></td>');
  331. }
  332. aHTML.push('</tr>');
  333. }
  334. aHTML.push('</table>');
  335. _el.innerHTML = aHTML.join('');
  336. // Fix the margin values as real size.
  337. var elTable = _el.childNodes[0];
  338. var nLeftMarginTable = (_htOption.width - elTable.offsetWidth) / 2;
  339. var nTopMarginTable = (_htOption.height - elTable.offsetHeight) / 2;
  340. if (nLeftMarginTable > 0 && nTopMarginTable > 0) {
  341. elTable.style.margin = nTopMarginTable + "px " + nLeftMarginTable + "px";
  342. }
  343. };
  344. /**
  345. * Clear the QRCode
  346. */
  347. Drawing.prototype.clear = function () {
  348. this._el.innerHTML = '';
  349. };
  350. return Drawing;
  351. })() : (function () { // Drawing in Canvas
  352. function _onMakeImage() {
  353. this._elImage.src = this._elCanvas.toDataURL("image/png");
  354. this._elImage.style.display = "block";
  355. this._elCanvas.style.display = "none";
  356. }
  357. // Android 2.1 bug workaround
  358. // http://code.google.com/p/android/issues/detail?id=5141
  359. if (this._android && this._android <= 2.1) {
  360. var factor = 1 / window.devicePixelRatio;
  361. var drawImage = CanvasRenderingContext2D.prototype.drawImage;
  362. CanvasRenderingContext2D.prototype.drawImage = function (image, sx, sy, sw, sh, dx, dy, dw, dh) {
  363. if (("nodeName" in image) && /img/i.test(image.nodeName)) {
  364. for (var i = arguments.length - 1; i >= 1; i--) {
  365. arguments[i] = arguments[i] * factor;
  366. }
  367. } else if (typeof dw == "undefined") {
  368. arguments[1] *= factor;
  369. arguments[2] *= factor;
  370. arguments[3] *= factor;
  371. arguments[4] *= factor;
  372. }
  373. drawImage.apply(this, arguments);
  374. };
  375. }
  376. /**
  377. * Check whether the user's browser supports Data URI or not
  378. *
  379. * @private
  380. * @param {Function} fSuccess Occurs if it supports Data URI
  381. * @param {Function} fFail Occurs if it doesn't support Data URI
  382. */
  383. function _safeSetDataURI(fSuccess, fFail) {
  384. var self = this;
  385. self._fFail = fFail;
  386. self._fSuccess = fSuccess;
  387. // Check it just once
  388. if (self._bSupportDataURI === null) {
  389. var el = document.createElement("img");
  390. var fOnError = function () {
  391. self._bSupportDataURI = false;
  392. if (self._fFail) {
  393. self._fFail.call(self);
  394. }
  395. };
  396. var fOnSuccess = function () {
  397. self._bSupportDataURI = true;
  398. if (self._fSuccess) {
  399. self._fSuccess.call(self);
  400. }
  401. };
  402. el.onabort = fOnError;
  403. el.onerror = fOnError;
  404. el.onload = fOnSuccess;
  405. el.src = "data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="; // the Image contains 1px data.
  406. return;
  407. } else if (self._bSupportDataURI === true && self._fSuccess) {
  408. self._fSuccess.call(self);
  409. } else if (self._bSupportDataURI === false && self._fFail) {
  410. self._fFail.call(self);
  411. }
  412. };
  413. /**
  414. * Drawing QRCode by using canvas
  415. *
  416. * @constructor
  417. * @param {HTMLElement} el
  418. * @param {Object} htOption QRCode Options
  419. */
  420. var Drawing = function (el, htOption) {
  421. this._bIsPainted = false;
  422. this._android = _getAndroid();
  423. this._htOption = htOption;
  424. this._elCanvas = document.createElement("canvas");
  425. this._elCanvas.width = htOption.width;
  426. this._elCanvas.height = htOption.height;
  427. el.appendChild(this._elCanvas);
  428. this._el = el;
  429. this._oContext = this._elCanvas.getContext("2d");
  430. this._bIsPainted = false;
  431. this._elImage = document.createElement("img");
  432. this._elImage.alt = "Scan me!";
  433. this._elImage.style.display = "none";
  434. this._el.appendChild(this._elImage);
  435. this._bSupportDataURI = null;
  436. };
  437. /**
  438. * Draw the QRCode
  439. *
  440. * @param {QRCode} oQRCode
  441. */
  442. Drawing.prototype.draw = function (oQRCode) {
  443. var _elImage = this._elImage;
  444. var _oContext = this._oContext;
  445. var _htOption = this._htOption;
  446. var nCount = oQRCode.getModuleCount();
  447. var nWidth = _htOption.width / nCount;
  448. var nHeight = _htOption.height / nCount;
  449. var nRoundedWidth = Math.round(nWidth);
  450. var nRoundedHeight = Math.round(nHeight);
  451. _elImage.style.display = "none";
  452. this.clear();
  453. for (var row = 0; row < nCount; row++) {
  454. for (var col = 0; col < nCount; col++) {
  455. var bIsDark = oQRCode.isDark(row, col);
  456. var nLeft = col * nWidth;
  457. var nTop = row * nHeight;
  458. _oContext.strokeStyle = bIsDark ? _htOption.colorDark : _htOption.colorLight;
  459. _oContext.lineWidth = 1;
  460. _oContext.fillStyle = bIsDark ? _htOption.colorDark : _htOption.colorLight;
  461. _oContext.fillRect(nLeft, nTop, nWidth, nHeight);
  462. // 안티 앨리어싱 방지 처리
  463. _oContext.strokeRect(
  464. Math.floor(nLeft) + 0.5,
  465. Math.floor(nTop) + 0.5,
  466. nRoundedWidth,
  467. nRoundedHeight
  468. );
  469. _oContext.strokeRect(
  470. Math.ceil(nLeft) - 0.5,
  471. Math.ceil(nTop) - 0.5,
  472. nRoundedWidth,
  473. nRoundedHeight
  474. );
  475. }
  476. }
  477. this._bIsPainted = true;
  478. };
  479. /**
  480. * Make the image from Canvas if the browser supports Data URI.
  481. */
  482. Drawing.prototype.makeImage = function () {
  483. if (this._bIsPainted) {
  484. _safeSetDataURI.call(this, _onMakeImage);
  485. }
  486. };
  487. /**
  488. * Return whether the QRCode is painted or not
  489. *
  490. * @return {Boolean}
  491. */
  492. Drawing.prototype.isPainted = function () {
  493. return this._bIsPainted;
  494. };
  495. /**
  496. * Clear the QRCode
  497. */
  498. Drawing.prototype.clear = function () {
  499. this._oContext.clearRect(0, 0, this._elCanvas.width, this._elCanvas.height);
  500. this._bIsPainted = false;
  501. };
  502. /**
  503. * @private
  504. * @param {Number} nNumber
  505. */
  506. Drawing.prototype.round = function (nNumber) {
  507. if (!nNumber) {
  508. return nNumber;
  509. }
  510. return Math.floor(nNumber * 1000) / 1000;
  511. };
  512. return Drawing;
  513. })();
  514. /**
  515. * Get the type by string length
  516. *
  517. * @private
  518. * @param {String} sText
  519. * @param {Number} nCorrectLevel
  520. * @return {Number} type
  521. */
  522. function _getTypeNumber(sText, nCorrectLevel) {
  523. var nType = 1;
  524. var length = _getUTF8Length(sText);
  525. for (var i = 0, len = QRCodeLimitLength.length; i <= len; i++) {
  526. var nLimit = 0;
  527. switch (nCorrectLevel) {
  528. case QRErrorCorrectLevel.L:
  529. nLimit = QRCodeLimitLength[i][0];
  530. break;
  531. case QRErrorCorrectLevel.M:
  532. nLimit = QRCodeLimitLength[i][1];
  533. break;
  534. case QRErrorCorrectLevel.Q:
  535. nLimit = QRCodeLimitLength[i][2];
  536. break;
  537. case QRErrorCorrectLevel.H:
  538. nLimit = QRCodeLimitLength[i][3];
  539. break;
  540. }
  541. if (length <= nLimit) {
  542. break;
  543. } else {
  544. nType++;
  545. }
  546. }
  547. if (nType > QRCodeLimitLength.length) {
  548. throw new Error("Too long data");
  549. }
  550. return nType;
  551. }
  552. function _getUTF8Length(sText) {
  553. var replacedText = encodeURI(sText).toString().replace(/\%[0-9a-fA-F]{2}/g, 'a');
  554. return replacedText.length + (replacedText.length != sText ? 3 : 0);
  555. }
  556. /**
  557. * @class QRCode
  558. * @constructor
  559. * @example
  560. * new QRCode(document.getElementById("test"), "http://jindo.dev.naver.com/collie");
  561. *
  562. * @example
  563. * var oQRCode = new QRCode("test", {
  564. * text : "http://naver.com",
  565. * width : 128,
  566. * height : 128
  567. * });
  568. *
  569. * oQRCode.clear(); // Clear the QRCode.
  570. * oQRCode.makeCode("http://map.naver.com"); // Re-create the QRCode.
  571. *
  572. * @param {HTMLElement|String} el target element or 'id' attribute of element.
  573. * @param {Object|String} vOption
  574. * @param {String} vOption.text QRCode link data
  575. * @param {Number} [vOption.width=256]
  576. * @param {Number} [vOption.height=256]
  577. * @param {String} [vOption.colorDark="#000000"]
  578. * @param {String} [vOption.colorLight="#ffffff"]
  579. * @param {QRCode.CorrectLevel} [vOption.correctLevel=QRCode.CorrectLevel.H] [L|M|Q|H]
  580. */
  581. QRCode = function (el, vOption) {
  582. this._htOption = {
  583. width: 256,
  584. height: 256,
  585. typeNumber: 4,
  586. colorDark: "#000000",
  587. colorLight: "#ffffff",
  588. correctLevel: QRErrorCorrectLevel.H
  589. };
  590. if (typeof vOption === 'string') {
  591. vOption = {
  592. text: vOption
  593. };
  594. }
  595. // Overwrites options
  596. if (vOption) {
  597. for (var i in vOption) {
  598. this._htOption[i] = vOption[i];
  599. }
  600. }
  601. if (typeof el == "string") {
  602. el = document.getElementById(el);
  603. }
  604. if (this._htOption.useSVG) {
  605. Drawing = svgDrawer;
  606. }
  607. this._android = _getAndroid();
  608. this._el = el;
  609. this._oQRCode = null;
  610. this._oDrawing = new Drawing(this._el, this._htOption);
  611. if (this._htOption.text) {
  612. this.makeCode(this._htOption.text);
  613. }
  614. };
  615. /**
  616. * Make the QRCode
  617. *
  618. * @param {String} sText link data
  619. */
  620. QRCode.prototype.makeCode = function (sText) {
  621. this._oQRCode = new QRCodeModel(_getTypeNumber(sText, this._htOption.correctLevel), this._htOption.correctLevel);
  622. this._oQRCode.addData(sText);
  623. this._oQRCode.make();
  624. this._el.title = sText;
  625. this._oDrawing.draw(this._oQRCode);
  626. this.makeImage();
  627. };
  628. /**
  629. * Make the Image from Canvas element
  630. * - It occurs automatically
  631. * - Android below 3 doesn't support Data-URI spec.
  632. *
  633. * @private
  634. */
  635. QRCode.prototype.makeImage = function () {
  636. if (typeof this._oDrawing.makeImage == "function" && (!this._android || this._android >= 3)) {
  637. this._oDrawing.makeImage();
  638. }
  639. };
  640. /**
  641. * Clear the QRCode
  642. */
  643. QRCode.prototype.clear = function () {
  644. this._oDrawing.clear();
  645. };
  646. /**
  647. * @name QRCode.CorrectLevel
  648. */
  649. QRCode.CorrectLevel = QRErrorCorrectLevel;
  650. })();