| 提交 | 用户 | 时间 | ||
| 1ac2bc | 1 | /** |
| 懒 | 2 | * @fileoverview |
| 3 | * - Using the 'QRCode for Javascript library' | |
| 4 | * - Fixed dataset of 'QRCode for Javascript library' for support full-spec. | |
| 5 | * - this library has no dependencies. | |
| 6 | * | |
| 7 | * @author davidshimjs | |
| 8 | * @see <a href="http://www.d-project.com/" target="_blank">http://www.d-project.com/</a> | |
| 9 | * @see <a href="http://jeromeetienne.github.com/jquery-qrcode/" target="_blank">http://jeromeetienne.github.com/jquery-qrcode/</a> | |
| 10 | */ | |
| 11 | layui.define(function (exports) { | |
| 12 | var QRCode; | |
| 13 | ||
| 14 | function QR8bitByte(data) { | |
| 15 | this.mode = QRMode.MODE_8BIT_BYTE; | |
| 16 | this.data = data; | |
| 17 | this.parsedData = []; | |
| 18 | ||
| 19 | // Added to support UTF-8 Characters | |
| 20 | for (var i = 0, l = this.data.length; i < l; i++) { | |
| 21 | var byteArray = []; | |
| 22 | var code = this.data.charCodeAt(i); | |
| 23 | ||
| 24 | if (code > 0x10000) { | |
| 25 | byteArray[0] = 0xF0 | ((code & 0x1C0000) >>> 18); | |
| 26 | byteArray[1] = 0x80 | ((code & 0x3F000) >>> 12); | |
| 27 | byteArray[2] = 0x80 | ((code & 0xFC0) >>> 6); | |
| 28 | byteArray[3] = 0x80 | (code & 0x3F); | |
| 29 | } else if (code > 0x800) { | |
| 30 | byteArray[0] = 0xE0 | ((code & 0xF000) >>> 12); | |
| 31 | byteArray[1] = 0x80 | ((code & 0xFC0) >>> 6); | |
| 32 | byteArray[2] = 0x80 | (code & 0x3F); | |
| 33 | } else if (code > 0x80) { | |
| 34 | byteArray[0] = 0xC0 | ((code & 0x7C0) >>> 6); | |
| 35 | byteArray[1] = 0x80 | (code & 0x3F); | |
| 36 | } else { | |
| 37 | byteArray[0] = code; | |
| 38 | } | |
| 39 | ||
| 40 | this.parsedData.push(byteArray); | |
| 41 | } | |
| 42 | ||
| 43 | this.parsedData = Array.prototype.concat.apply([], this.parsedData); | |
| 44 | ||
| 45 | if (this.parsedData.length != this.data.length) { | |
| 46 | this.parsedData.unshift(191); | |
| 47 | this.parsedData.unshift(187); | |
| 48 | this.parsedData.unshift(239); | |
| 49 | } | |
| 50 | } | |
| 51 | ||
| 52 | QR8bitByte.prototype = { | |
| 53 | getLength: function (buffer) { | |
| 54 | return this.parsedData.length; | |
| 55 | }, | |
| 56 | write: function (buffer) { | |
| 57 | for (var i = 0, l = this.parsedData.length; i < l; i++) { | |
| 58 | buffer.put(this.parsedData[i], 8); | |
| 59 | } | |
| 60 | } | |
| 61 | }; | |
| 62 | ||
| 63 | function QRCodeModel(typeNumber, errorCorrectLevel) { | |
| 64 | this.typeNumber = typeNumber; | |
| 65 | this.errorCorrectLevel = errorCorrectLevel; | |
| 66 | this.modules = null; | |
| 67 | this.moduleCount = 0; | |
| 68 | this.dataCache = null; | |
| 69 | this.dataList = []; | |
| 70 | } | |
| 71 | ||
| 72 | QRCodeModel.prototype = { | |
| 73 | addData: function (data) { | |
| 74 | var newData = new QR8bitByte(data); | |
| 75 | this.dataList.push(newData); | |
| 76 | this.dataCache = null; | |
| 77 | }, isDark: function (row, col) { | |
| 78 | if (row < 0 || this.moduleCount <= row || col < 0 || this.moduleCount <= col) { | |
| 79 | throw new Error(row + "," + col); | |
| 80 | } | |
| 81 | return this.modules[row][col]; | |
| 82 | }, getModuleCount: function () { | |
| 83 | return this.moduleCount; | |
| 84 | }, make: function () { | |
| 85 | this.makeImpl(false, this.getBestMaskPattern()); | |
| 86 | }, makeImpl: function (test, maskPattern) { | |
| 87 | this.moduleCount = this.typeNumber * 4 + 17; | |
| 88 | this.modules = new Array(this.moduleCount); | |
| 89 | for (var row = 0; row < this.moduleCount; row++) { | |
| 90 | this.modules[row] = new Array(this.moduleCount); | |
| 91 | for (var col = 0; col < this.moduleCount; col++) { | |
| 92 | this.modules[row][col] = null; | |
| 93 | } | |
| 94 | } | |
| 95 | this.setupPositionProbePattern(0, 0); | |
| 96 | this.setupPositionProbePattern(this.moduleCount - 7, 0); | |
| 97 | this.setupPositionProbePattern(0, this.moduleCount - 7); | |
| 98 | this.setupPositionAdjustPattern(); | |
| 99 | this.setupTimingPattern(); | |
| 100 | this.setupTypeInfo(test, maskPattern); | |
| 101 | if (this.typeNumber >= 7) { | |
| 102 | this.setupTypeNumber(test); | |
| 103 | } | |
| 104 | if (this.dataCache == null) { | |
| 105 | this.dataCache = QRCodeModel.createData(this.typeNumber, this.errorCorrectLevel, this.dataList); | |
| 106 | } | |
| 107 | this.mapData(this.dataCache, maskPattern); | |
| 108 | }, setupPositionProbePattern: function (row, col) { | |
| 109 | for (var r = -1; r <= 7; r++) { | |
| 110 | if (row + r <= -1 || this.moduleCount <= row + r) continue; | |
| 111 | for (var c = -1; c <= 7; c++) { | |
| 112 | if (col + c <= -1 || this.moduleCount <= col + c) continue; | |
| 113 | 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)) { | |
| 114 | this.modules[row + r][col + c] = true; | |
| 115 | } else { | |
| 116 | this.modules[row + r][col + c] = false; | |
| 117 | } | |
| 118 | } | |
| 119 | } | |
| 120 | }, getBestMaskPattern: function () { | |
| 121 | var minLostPoint = 0; | |
| 122 | var pattern = 0; | |
| 123 | for (var i = 0; i < 8; i++) { | |
| 124 | this.makeImpl(true, i); | |
| 125 | var lostPoint = QRUtil.getLostPoint(this); | |
| 126 | if (i == 0 || minLostPoint > lostPoint) { | |
| 127 | minLostPoint = lostPoint; | |
| 128 | pattern = i; | |
| 129 | } | |
| 130 | } | |
| 131 | return pattern; | |
| 132 | }, createMovieClip: function (target_mc, instance_name, depth) { | |
| 133 | var qr_mc = target_mc.createEmptyMovieClip(instance_name, depth); | |
| 134 | var cs = 1; | |
| 135 | this.make(); | |
| 136 | for (var row = 0; row < this.modules.length; row++) { | |
| 137 | var y = row * cs; | |
| 138 | for (var col = 0; col < this.modules[row].length; col++) { | |
| 139 | var x = col * cs; | |
| 140 | var dark = this.modules[row][col]; | |
| 141 | if (dark) { | |
| 142 | qr_mc.beginFill(0, 100); | |
| 143 | qr_mc.moveTo(x, y); | |
| 144 | qr_mc.lineTo(x + cs, y); | |
| 145 | qr_mc.lineTo(x + cs, y + cs); | |
| 146 | qr_mc.lineTo(x, y + cs); | |
| 147 | qr_mc.endFill(); | |
| 148 | } | |
| 149 | } | |
| 150 | } | |
| 151 | return qr_mc; | |
| 152 | }, setupTimingPattern: function () { | |
| 153 | for (var r = 8; r < this.moduleCount - 8; r++) { | |
| 154 | if (this.modules[r][6] != null) { | |
| 155 | continue; | |
| 156 | } | |
| 157 | this.modules[r][6] = (r % 2 == 0); | |
| 158 | } | |
| 159 | for (var c = 8; c < this.moduleCount - 8; c++) { | |
| 160 | if (this.modules[6][c] != null) { | |
| 161 | continue; | |
| 162 | } | |
| 163 | this.modules[6][c] = (c % 2 == 0); | |
| 164 | } | |
| 165 | }, setupPositionAdjustPattern: function () { | |
| 166 | var pos = QRUtil.getPatternPosition(this.typeNumber); | |
| 167 | for (var i = 0; i < pos.length; i++) { | |
| 168 | for (var j = 0; j < pos.length; j++) { | |
| 169 | var row = pos[i]; | |
| 170 | var col = pos[j]; | |
| 171 | if (this.modules[row][col] != null) { | |
| 172 | continue; | |
| 173 | } | |
| 174 | for (var r = -2; r <= 2; r++) { | |
| 175 | for (var c = -2; c <= 2; c++) { | |
| 176 | if (r == -2 || r == 2 || c == -2 || c == 2 || (r == 0 && c == 0)) { | |
| 177 | this.modules[row + r][col + c] = true; | |
| 178 | } else { | |
| 179 | this.modules[row + r][col + c] = false; | |
| 180 | } | |
| 181 | } | |
| 182 | } | |
| 183 | } | |
| 184 | } | |
| 185 | }, setupTypeNumber: function (test) { | |
| 186 | var bits = QRUtil.getBCHTypeNumber(this.typeNumber); | |
| 187 | for (var i = 0; i < 18; i++) { | |
| 188 | var mod = (!test && ((bits >> i) & 1) == 1); | |
| 189 | this.modules[Math.floor(i / 3)][i % 3 + this.moduleCount - 8 - 3] = mod; | |
| 190 | } | |
| 191 | for (var i = 0; i < 18; i++) { | |
| 192 | var mod = (!test && ((bits >> i) & 1) == 1); | |
| 193 | this.modules[i % 3 + this.moduleCount - 8 - 3][Math.floor(i / 3)] = mod; | |
| 194 | } | |
| 195 | }, setupTypeInfo: function (test, maskPattern) { | |
| 196 | var data = (this.errorCorrectLevel << 3) | maskPattern; | |
| 197 | var bits = QRUtil.getBCHTypeInfo(data); | |
| 198 | for (var i = 0; i < 15; i++) { | |
| 199 | var mod = (!test && ((bits >> i) & 1) == 1); | |
| 200 | if (i < 6) { | |
| 201 | this.modules[i][8] = mod; | |
| 202 | } else if (i < 8) { | |
| 203 | this.modules[i + 1][8] = mod; | |
| 204 | } else { | |
| 205 | this.modules[this.moduleCount - 15 + i][8] = mod; | |
| 206 | } | |
| 207 | } | |
| 208 | for (var i = 0; i < 15; i++) { | |
| 209 | var mod = (!test && ((bits >> i) & 1) == 1); | |
| 210 | if (i < 8) { | |
| 211 | this.modules[8][this.moduleCount - i - 1] = mod; | |
| 212 | } else if (i < 9) { | |
| 213 | this.modules[8][15 - i - 1 + 1] = mod; | |
| 214 | } else { | |
| 215 | this.modules[8][15 - i - 1] = mod; | |
| 216 | } | |
| 217 | } | |
| 218 | this.modules[this.moduleCount - 8][8] = (!test); | |
| 219 | }, mapData: function (data, maskPattern) { | |
| 220 | var inc = -1; | |
| 221 | var row = this.moduleCount - 1; | |
| 222 | var bitIndex = 7; | |
| 223 | var byteIndex = 0; | |
| 224 | for (var col = this.moduleCount - 1; col > 0; col -= 2) { | |
| 225 | if (col == 6) col--; | |
| 226 | while (true) { | |
| 227 | for (var c = 0; c < 2; c++) { | |
| 228 | if (this.modules[row][col - c] == null) { | |
| 229 | var dark = false; | |
| 230 | if (byteIndex < data.length) { | |
| 231 | dark = (((data[byteIndex] >>> bitIndex) & 1) == 1); | |
| 232 | } | |
| 233 | var mask = QRUtil.getMask(maskPattern, row, col - c); | |
| 234 | if (mask) { | |
| 235 | dark = !dark; | |
| 236 | } | |
| 237 | this.modules[row][col - c] = dark; | |
| 238 | bitIndex--; | |
| 239 | if (bitIndex == -1) { | |
| 240 | byteIndex++; | |
| 241 | bitIndex = 7; | |
| 242 | } | |
| 243 | } | |
| 244 | } | |
| 245 | row += inc; | |
| 246 | if (row < 0 || this.moduleCount <= row) { | |
| 247 | row -= inc; | |
| 248 | inc = -inc; | |
| 249 | break; | |
| 250 | } | |
| 251 | } | |
| 252 | } | |
| 253 | } | |
| 254 | }; | |
| 255 | QRCodeModel.PAD0 = 0xEC; | |
| 256 | QRCodeModel.PAD1 = 0x11; | |
| 257 | QRCodeModel.createData = function (typeNumber, errorCorrectLevel, dataList) { | |
| 258 | var rsBlocks = QRRSBlock.getRSBlocks(typeNumber, errorCorrectLevel); | |
| 259 | var buffer = new QRBitBuffer(); | |
| 260 | for (var i = 0; i < dataList.length; i++) { | |
| 261 | var data = dataList[i]; | |
| 262 | buffer.put(data.mode, 4); | |
| 263 | buffer.put(data.getLength(), QRUtil.getLengthInBits(data.mode, typeNumber)); | |
| 264 | data.write(buffer); | |
| 265 | } | |
| 266 | var totalDataCount = 0; | |
| 267 | for (var i = 0; i < rsBlocks.length; i++) { | |
| 268 | totalDataCount += rsBlocks[i].dataCount; | |
| 269 | } | |
| 270 | if (buffer.getLengthInBits() > totalDataCount * 8) { | |
| 271 | throw new Error("code length overflow. (" | |
| 272 | + buffer.getLengthInBits() | |
| 273 | + ">" | |
| 274 | + totalDataCount * 8 | |
| 275 | + ")"); | |
| 276 | } | |
| 277 | if (buffer.getLengthInBits() + 4 <= totalDataCount * 8) { | |
| 278 | buffer.put(0, 4); | |
| 279 | } | |
| 280 | while (buffer.getLengthInBits() % 8 != 0) { | |
| 281 | buffer.putBit(false); | |
| 282 | } | |
| 283 | while (true) { | |
| 284 | if (buffer.getLengthInBits() >= totalDataCount * 8) { | |
| 285 | break; | |
| 286 | } | |
| 287 | buffer.put(QRCodeModel.PAD0, 8); | |
| 288 | if (buffer.getLengthInBits() >= totalDataCount * 8) { | |
| 289 | break; | |
| 290 | } | |
| 291 | buffer.put(QRCodeModel.PAD1, 8); | |
| 292 | } | |
| 293 | return QRCodeModel.createBytes(buffer, rsBlocks); | |
| 294 | }; | |
| 295 | QRCodeModel.createBytes = function (buffer, rsBlocks) { | |
| 296 | var offset = 0; | |
| 297 | var maxDcCount = 0; | |
| 298 | var maxEcCount = 0; | |
| 299 | var dcdata = new Array(rsBlocks.length); | |
| 300 | var ecdata = new Array(rsBlocks.length); | |
| 301 | for (var r = 0; r < rsBlocks.length; r++) { | |
| 302 | var dcCount = rsBlocks[r].dataCount; | |
| 303 | var ecCount = rsBlocks[r].totalCount - dcCount; | |
| 304 | maxDcCount = Math.max(maxDcCount, dcCount); | |
| 305 | maxEcCount = Math.max(maxEcCount, ecCount); | |
| 306 | dcdata[r] = new Array(dcCount); | |
| 307 | for (var i = 0; i < dcdata[r].length; i++) { | |
| 308 | dcdata[r][i] = 0xff & buffer.buffer[i + offset]; | |
| 309 | } | |
| 310 | offset += dcCount; | |
| 311 | var rsPoly = QRUtil.getErrorCorrectPolynomial(ecCount); | |
| 312 | var rawPoly = new QRPolynomial(dcdata[r], rsPoly.getLength() - 1); | |
| 313 | var modPoly = rawPoly.mod(rsPoly); | |
| 314 | ecdata[r] = new Array(rsPoly.getLength() - 1); | |
| 315 | for (var i = 0; i < ecdata[r].length; i++) { | |
| 316 | var modIndex = i + modPoly.getLength() - ecdata[r].length; | |
| 317 | ecdata[r][i] = (modIndex >= 0) ? modPoly.get(modIndex) : 0; | |
| 318 | } | |
| 319 | } | |
| 320 | var totalCodeCount = 0; | |
| 321 | for (var i = 0; i < rsBlocks.length; i++) { | |
| 322 | totalCodeCount += rsBlocks[i].totalCount; | |
| 323 | } | |
| 324 | var data = new Array(totalCodeCount); | |
| 325 | var index = 0; | |
| 326 | for (var i = 0; i < maxDcCount; i++) { | |
| 327 | for (var r = 0; r < rsBlocks.length; r++) { | |
| 328 | if (i < dcdata[r].length) { | |
| 329 | data[index++] = dcdata[r][i]; | |
| 330 | } | |
| 331 | } | |
| 332 | } | |
| 333 | for (var i = 0; i < maxEcCount; i++) { | |
| 334 | for (var r = 0; r < rsBlocks.length; r++) { | |
| 335 | if (i < ecdata[r].length) { | |
| 336 | data[index++] = ecdata[r][i]; | |
| 337 | } | |
| 338 | } | |
| 339 | } | |
| 340 | return data; | |
| 341 | }; | |
| 342 | var QRMode = {MODE_NUMBER: 1 << 0, MODE_ALPHA_NUM: 1 << 1, MODE_8BIT_BYTE: 1 << 2, MODE_KANJI: 1 << 3}; | |
| 343 | var QRErrorCorrectLevel = {L: 1, M: 0, Q: 3, H: 2}; | |
| 344 | var QRMaskPattern = { | |
| 345 | PATTERN000: 0, | |
| 346 | PATTERN001: 1, | |
| 347 | PATTERN010: 2, | |
| 348 | PATTERN011: 3, | |
| 349 | PATTERN100: 4, | |
| 350 | PATTERN101: 5, | |
| 351 | PATTERN110: 6, | |
| 352 | PATTERN111: 7 | |
| 353 | }; | |
| 354 | var QRUtil = { | |
| 355 | 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]], | |
| 356 | G15: (1 << 10) | (1 << 8) | (1 << 5) | (1 << 4) | (1 << 2) | (1 << 1) | (1 << 0), | |
| 357 | G18: (1 << 12) | (1 << 11) | (1 << 10) | (1 << 9) | (1 << 8) | (1 << 5) | (1 << 2) | (1 << 0), | |
| 358 | G15_MASK: (1 << 14) | (1 << 12) | (1 << 10) | (1 << 4) | (1 << 1), | |
| 359 | getBCHTypeInfo: function (data) { | |
| 360 | var d = data << 10; | |
| 361 | while (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G15) >= 0) { | |
| 362 | d ^= (QRUtil.G15 << (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G15))); | |
| 363 | } | |
| 364 | return ((data << 10) | d) ^ QRUtil.G15_MASK; | |
| 365 | }, | |
| 366 | getBCHTypeNumber: function (data) { | |
| 367 | var d = data << 12; | |
| 368 | while (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G18) >= 0) { | |
| 369 | d ^= (QRUtil.G18 << (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G18))); | |
| 370 | } | |
| 371 | return (data << 12) | d; | |
| 372 | }, | |
| 373 | getBCHDigit: function (data) { | |
| 374 | var digit = 0; | |
| 375 | while (data != 0) { | |
| 376 | digit++; | |
| 377 | data >>>= 1; | |
| 378 | } | |
| 379 | return digit; | |
| 380 | }, | |
| 381 | getPatternPosition: function (typeNumber) { | |
| 382 | return QRUtil.PATTERN_POSITION_TABLE[typeNumber - 1]; | |
| 383 | }, | |
| 384 | getMask: function (maskPattern, i, j) { | |
| 385 | switch (maskPattern) { | |
| 386 | case QRMaskPattern.PATTERN000: | |
| 387 | return (i + j) % 2 == 0; | |
| 388 | case QRMaskPattern.PATTERN001: | |
| 389 | return i % 2 == 0; | |
| 390 | case QRMaskPattern.PATTERN010: | |
| 391 | return j % 3 == 0; | |
| 392 | case QRMaskPattern.PATTERN011: | |
| 393 | return (i + j) % 3 == 0; | |
| 394 | case QRMaskPattern.PATTERN100: | |
| 395 | return (Math.floor(i / 2) + Math.floor(j / 3)) % 2 == 0; | |
| 396 | case QRMaskPattern.PATTERN101: | |
| 397 | return (i * j) % 2 + (i * j) % 3 == 0; | |
| 398 | case QRMaskPattern.PATTERN110: | |
| 399 | return ((i * j) % 2 + (i * j) % 3) % 2 == 0; | |
| 400 | case QRMaskPattern.PATTERN111: | |
| 401 | return ((i * j) % 3 + (i + j) % 2) % 2 == 0; | |
| 402 | default: | |
| 403 | throw new Error("bad maskPattern:" + maskPattern); | |
| 404 | } | |
| 405 | }, | |
| 406 | getErrorCorrectPolynomial: function (errorCorrectLength) { | |
| 407 | var a = new QRPolynomial([1], 0); | |
| 408 | for (var i = 0; i < errorCorrectLength; i++) { | |
| 409 | a = a.multiply(new QRPolynomial([1, QRMath.gexp(i)], 0)); | |
| 410 | } | |
| 411 | return a; | |
| 412 | }, | |
| 413 | getLengthInBits: function (mode, type) { | |
| 414 | if (1 <= type && type < 10) { | |
| 415 | switch (mode) { | |
| 416 | case QRMode.MODE_NUMBER: | |
| 417 | return 10; | |
| 418 | case QRMode.MODE_ALPHA_NUM: | |
| 419 | return 9; | |
| 420 | case QRMode.MODE_8BIT_BYTE: | |
| 421 | return 8; | |
| 422 | case QRMode.MODE_KANJI: | |
| 423 | return 8; | |
| 424 | default: | |
| 425 | throw new Error("mode:" + mode); | |
| 426 | } | |
| 427 | } else if (type < 27) { | |
| 428 | switch (mode) { | |
| 429 | case QRMode.MODE_NUMBER: | |
| 430 | return 12; | |
| 431 | case QRMode.MODE_ALPHA_NUM: | |
| 432 | return 11; | |
| 433 | case QRMode.MODE_8BIT_BYTE: | |
| 434 | return 16; | |
| 435 | case QRMode.MODE_KANJI: | |
| 436 | return 10; | |
| 437 | default: | |
| 438 | throw new Error("mode:" + mode); | |
| 439 | } | |
| 440 | } else if (type < 41) { | |
| 441 | switch (mode) { | |
| 442 | case QRMode.MODE_NUMBER: | |
| 443 | return 14; | |
| 444 | case QRMode.MODE_ALPHA_NUM: | |
| 445 | return 13; | |
| 446 | case QRMode.MODE_8BIT_BYTE: | |
| 447 | return 16; | |
| 448 | case QRMode.MODE_KANJI: | |
| 449 | return 12; | |
| 450 | default: | |
| 451 | throw new Error("mode:" + mode); | |
| 452 | } | |
| 453 | } else { | |
| 454 | throw new Error("type:" + type); | |
| 455 | } | |
| 456 | }, | |
| 457 | getLostPoint: function (qrCode) { | |
| 458 | var moduleCount = qrCode.getModuleCount(); | |
| 459 | var lostPoint = 0; | |
| 460 | for (var row = 0; row < moduleCount; row++) { | |
| 461 | for (var col = 0; col < moduleCount; col++) { | |
| 462 | var sameCount = 0; | |
| 463 | var dark = qrCode.isDark(row, col); | |
| 464 | for (var r = -1; r <= 1; r++) { | |
| 465 | if (row + r < 0 || moduleCount <= row + r) { | |
| 466 | continue; | |
| 467 | } | |
| 468 | for (var c = -1; c <= 1; c++) { | |
| 469 | if (col + c < 0 || moduleCount <= col + c) { | |
| 470 | continue; | |
| 471 | } | |
| 472 | if (r == 0 && c == 0) { | |
| 473 | continue; | |
| 474 | } | |
| 475 | if (dark == qrCode.isDark(row + r, col + c)) { | |
| 476 | sameCount++; | |
| 477 | } | |
| 478 | } | |
| 479 | } | |
| 480 | if (sameCount > 5) { | |
| 481 | lostPoint += (3 + sameCount - 5); | |
| 482 | } | |
| 483 | } | |
| 484 | } | |
| 485 | for (var row = 0; row < moduleCount - 1; row++) { | |
| 486 | for (var col = 0; col < moduleCount - 1; col++) { | |
| 487 | var count = 0; | |
| 488 | if (qrCode.isDark(row, col)) count++; | |
| 489 | if (qrCode.isDark(row + 1, col)) count++; | |
| 490 | if (qrCode.isDark(row, col + 1)) count++; | |
| 491 | if (qrCode.isDark(row + 1, col + 1)) count++; | |
| 492 | if (count == 0 || count == 4) { | |
| 493 | lostPoint += 3; | |
| 494 | } | |
| 495 | } | |
| 496 | } | |
| 497 | for (var row = 0; row < moduleCount; row++) { | |
| 498 | for (var col = 0; col < moduleCount - 6; col++) { | |
| 499 | 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)) { | |
| 500 | lostPoint += 40; | |
| 501 | } | |
| 502 | } | |
| 503 | } | |
| 504 | for (var col = 0; col < moduleCount; col++) { | |
| 505 | for (var row = 0; row < moduleCount - 6; row++) { | |
| 506 | 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)) { | |
| 507 | lostPoint += 40; | |
| 508 | } | |
| 509 | } | |
| 510 | } | |
| 511 | var darkCount = 0; | |
| 512 | for (var col = 0; col < moduleCount; col++) { | |
| 513 | for (var row = 0; row < moduleCount; row++) { | |
| 514 | if (qrCode.isDark(row, col)) { | |
| 515 | darkCount++; | |
| 516 | } | |
| 517 | } | |
| 518 | } | |
| 519 | var ratio = Math.abs(100 * darkCount / moduleCount / moduleCount - 50) / 5; | |
| 520 | lostPoint += ratio * 10; | |
| 521 | return lostPoint; | |
| 522 | } | |
| 523 | }; | |
| 524 | var QRMath = { | |
| 525 | glog: function (n) { | |
| 526 | if (n < 1) { | |
| 527 | throw new Error("glog(" + n + ")"); | |
| 528 | } | |
| 529 | return QRMath.LOG_TABLE[n]; | |
| 530 | }, gexp: function (n) { | |
| 531 | while (n < 0) { | |
| 532 | n += 255; | |
| 533 | } | |
| 534 | while (n >= 256) { | |
| 535 | n -= 255; | |
| 536 | } | |
| 537 | return QRMath.EXP_TABLE[n]; | |
| 538 | }, EXP_TABLE: new Array(256), LOG_TABLE: new Array(256) | |
| 539 | }; | |
| 540 | for (var i = 0; i < 8; i++) { | |
| 541 | QRMath.EXP_TABLE[i] = 1 << i; | |
| 542 | } | |
| 543 | for (var i = 8; i < 256; i++) { | |
| 544 | QRMath.EXP_TABLE[i] = QRMath.EXP_TABLE[i - 4] ^ QRMath.EXP_TABLE[i - 5] ^ QRMath.EXP_TABLE[i - 6] ^ QRMath.EXP_TABLE[i - 8]; | |
| 545 | } | |
| 546 | for (var i = 0; i < 255; i++) { | |
| 547 | QRMath.LOG_TABLE[QRMath.EXP_TABLE[i]] = i; | |
| 548 | } | |
| 549 | ||
| 550 | function QRPolynomial(num, shift) { | |
| 551 | if (num.length == undefined) { | |
| 552 | throw new Error(num.length + "/" + shift); | |
| 553 | } | |
| 554 | var offset = 0; | |
| 555 | while (offset < num.length && num[offset] == 0) { | |
| 556 | offset++; | |
| 557 | } | |
| 558 | this.num = new Array(num.length - offset + shift); | |
| 559 | for (var i = 0; i < num.length - offset; i++) { | |
| 560 | this.num[i] = num[i + offset]; | |
| 561 | } | |
| 562 | } | |
| 563 | ||
| 564 | QRPolynomial.prototype = { | |
| 565 | get: function (index) { | |
| 566 | return this.num[index]; | |
| 567 | }, getLength: function () { | |
| 568 | return this.num.length; | |
| 569 | }, multiply: function (e) { | |
| 570 | var num = new Array(this.getLength() + e.getLength() - 1); | |
| 571 | for (var i = 0; i < this.getLength(); i++) { | |
| 572 | for (var j = 0; j < e.getLength(); j++) { | |
| 573 | num[i + j] ^= QRMath.gexp(QRMath.glog(this.get(i)) + QRMath.glog(e.get(j))); | |
| 574 | } | |
| 575 | } | |
| 576 | return new QRPolynomial(num, 0); | |
| 577 | }, mod: function (e) { | |
| 578 | if (this.getLength() - e.getLength() < 0) { | |
| 579 | return this; | |
| 580 | } | |
| 581 | var ratio = QRMath.glog(this.get(0)) - QRMath.glog(e.get(0)); | |
| 582 | var num = new Array(this.getLength()); | |
| 583 | for (var i = 0; i < this.getLength(); i++) { | |
| 584 | num[i] = this.get(i); | |
| 585 | } | |
| 586 | for (var i = 0; i < e.getLength(); i++) { | |
| 587 | num[i] ^= QRMath.gexp(QRMath.glog(e.get(i)) + ratio); | |
| 588 | } | |
| 589 | return new QRPolynomial(num, 0).mod(e); | |
| 590 | } | |
| 591 | }; | |
| 592 | ||
| 593 | function QRRSBlock(totalCount, dataCount) { | |
| 594 | this.totalCount = totalCount; | |
| 595 | this.dataCount = dataCount; | |
| 596 | } | |
| 597 | ||
| 598 | 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]]; | |
| 599 | QRRSBlock.getRSBlocks = function (typeNumber, errorCorrectLevel) { | |
| 600 | var rsBlock = QRRSBlock.getRsBlockTable(typeNumber, errorCorrectLevel); | |
| 601 | if (rsBlock == undefined) { | |
| 602 | throw new Error("bad rs block @ typeNumber:" + typeNumber + "/errorCorrectLevel:" + errorCorrectLevel); | |
| 603 | } | |
| 604 | var length = rsBlock.length / 3; | |
| 605 | var list = []; | |
| 606 | for (var i = 0; i < length; i++) { | |
| 607 | var count = rsBlock[i * 3 + 0]; | |
| 608 | var totalCount = rsBlock[i * 3 + 1]; | |
| 609 | var dataCount = rsBlock[i * 3 + 2]; | |
| 610 | for (var j = 0; j < count; j++) { | |
| 611 | list.push(new QRRSBlock(totalCount, dataCount)); | |
| 612 | } | |
| 613 | } | |
| 614 | return list; | |
| 615 | }; | |
| 616 | QRRSBlock.getRsBlockTable = function (typeNumber, errorCorrectLevel) { | |
| 617 | switch (errorCorrectLevel) { | |
| 618 | case QRErrorCorrectLevel.L: | |
| 619 | return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 0]; | |
| 620 | case QRErrorCorrectLevel.M: | |
| 621 | return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 1]; | |
| 622 | case QRErrorCorrectLevel.Q: | |
| 623 | return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 2]; | |
| 624 | case QRErrorCorrectLevel.H: | |
| 625 | return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 3]; | |
| 626 | default: | |
| 627 | return undefined; | |
| 628 | } | |
| 629 | }; | |
| 630 | ||
| 631 | function QRBitBuffer() { | |
| 632 | this.buffer = []; | |
| 633 | this.length = 0; | |
| 634 | } | |
| 635 | ||
| 636 | QRBitBuffer.prototype = { | |
| 637 | get: function (index) { | |
| 638 | var bufIndex = Math.floor(index / 8); | |
| 639 | return ((this.buffer[bufIndex] >>> (7 - index % 8)) & 1) == 1; | |
| 640 | }, put: function (num, length) { | |
| 641 | for (var i = 0; i < length; i++) { | |
| 642 | this.putBit(((num >>> (length - i - 1)) & 1) == 1); | |
| 643 | } | |
| 644 | }, getLengthInBits: function () { | |
| 645 | return this.length; | |
| 646 | }, putBit: function (bit) { | |
| 647 | var bufIndex = Math.floor(this.length / 8); | |
| 648 | if (this.buffer.length <= bufIndex) { | |
| 649 | this.buffer.push(0); | |
| 650 | } | |
| 651 | if (bit) { | |
| 652 | this.buffer[bufIndex] |= (0x80 >>> (this.length % 8)); | |
| 653 | } | |
| 654 | this.length++; | |
| 655 | } | |
| 656 | }; | |
| 657 | 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]]; | |
| 658 | ||
| 659 | function _isSupportCanvas() { | |
| 660 | return typeof CanvasRenderingContext2D != "undefined"; | |
| 661 | } | |
| 662 | ||
| 663 | // android 2.x doesn't support Data-URI spec | |
| 664 | function _getAndroid() { | |
| 665 | var android = false; | |
| 666 | var sAgent = navigator.userAgent; | |
| 667 | ||
| 668 | if (/android/i.test(sAgent)) { // android | |
| 669 | android = true; | |
| 670 | var aMat = sAgent.toString().match(/android ([0-9]\.[0-9])/i); | |
| 671 | ||
| 672 | if (aMat && aMat[1]) { | |
| 673 | android = parseFloat(aMat[1]); | |
| 674 | } | |
| 675 | } | |
| 676 | ||
| 677 | return android; | |
| 678 | } | |
| 679 | ||
| 680 | var svgDrawer = (function () { | |
| 681 | ||
| 682 | var Drawing = function (el, htOption) { | |
| 683 | this._el = el; | |
| 684 | this._htOption = htOption; | |
| 685 | }; | |
| 686 | ||
| 687 | Drawing.prototype.draw = function (oQRCode) { | |
| 688 | var _htOption = this._htOption; | |
| 689 | var _el = this._el; | |
| 690 | var nCount = oQRCode.getModuleCount(); | |
| 691 | var nWidth = Math.floor(_htOption.width / nCount); | |
| 692 | var nHeight = Math.floor(_htOption.height / nCount); | |
| 693 | ||
| 694 | this.clear(); | |
| 695 | ||
| 696 | function makeSVG(tag, attrs) { | |
| 697 | var el = document.createElementNS('http://www.w3.org/2000/svg', tag); | |
| 698 | for (var k in attrs) | |
| 699 | if (attrs.hasOwnProperty(k)) el.setAttribute(k, attrs[k]); | |
| 700 | return el; | |
| 701 | } | |
| 702 | ||
| 703 | var svg = makeSVG("svg", { | |
| 704 | 'viewBox': '0 0 ' + String(nCount) + " " + String(nCount), | |
| 705 | 'width': '100%', | |
| 706 | 'height': '100%', | |
| 707 | 'fill': _htOption.colorLight | |
| 708 | }); | |
| 709 | svg.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns:xlink", "http://www.w3.org/1999/xlink"); | |
| 710 | _el.appendChild(svg); | |
| 711 | ||
| 712 | svg.appendChild(makeSVG("rect", {"fill": _htOption.colorLight, "width": "100%", "height": "100%"})); | |
| 713 | svg.appendChild(makeSVG("rect", { | |
| 714 | "fill": _htOption.colorDark, | |
| 715 | "width": "1", | |
| 716 | "height": "1", | |
| 717 | "id": "template" | |
| 718 | })); | |
| 719 | ||
| 720 | for (var row = 0; row < nCount; row++) { | |
| 721 | for (var col = 0; col < nCount; col++) { | |
| 722 | if (oQRCode.isDark(row, col)) { | |
| 723 | var child = makeSVG("use", {"x": String(col), "y": String(row)}); | |
| 724 | child.setAttributeNS("http://www.w3.org/1999/xlink", "href", "#template") | |
| 725 | svg.appendChild(child); | |
| 726 | } | |
| 727 | } | |
| 728 | } | |
| 729 | }; | |
| 730 | Drawing.prototype.clear = function () { | |
| 731 | while (this._el.hasChildNodes()) | |
| 732 | this._el.removeChild(this._el.lastChild); | |
| 733 | }; | |
| 734 | return Drawing; | |
| 735 | })(); | |
| 736 | ||
| 737 | var useSVG = document.documentElement.tagName.toLowerCase() === "svg"; | |
| 738 | ||
| 739 | // Drawing in DOM by using Table tag | |
| 740 | var Drawing = useSVG ? svgDrawer : !_isSupportCanvas() ? (function () { | |
| 741 | var Drawing = function (el, htOption) { | |
| 742 | this._el = el; | |
| 743 | this._htOption = htOption; | |
| 744 | }; | |
| 745 | ||
| 746 | /** | |
| 747 | * Draw the QRCode | |
| 748 | * | |
| 749 | * @param {QRCode} oQRCode | |
| 750 | */ | |
| 751 | Drawing.prototype.draw = function (oQRCode) { | |
| 752 | var _htOption = this._htOption; | |
| 753 | var _el = this._el; | |
| 754 | var nCount = oQRCode.getModuleCount(); | |
| 755 | var nWidth = Math.floor(_htOption.width / nCount); | |
| 756 | var nHeight = Math.floor(_htOption.height / nCount); | |
| 757 | var aHTML = ['<table style="border:0;border-collapse:collapse;">']; | |
| 758 | ||
| 759 | for (var row = 0; row < nCount; row++) { | |
| 760 | aHTML.push('<tr>'); | |
| 761 | ||
| 762 | for (var col = 0; col < nCount; col++) { | |
| 763 | 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>'); | |
| 764 | } | |
| 765 | ||
| 766 | aHTML.push('</tr>'); | |
| 767 | } | |
| 768 | ||
| 769 | aHTML.push('</table>'); | |
| 770 | _el.innerHTML = aHTML.join(''); | |
| 771 | ||
| 772 | // Fix the margin values as real size. | |
| 773 | var elTable = _el.childNodes[0]; | |
| 774 | var nLeftMarginTable = (_htOption.width - elTable.offsetWidth) / 2; | |
| 775 | var nTopMarginTable = (_htOption.height - elTable.offsetHeight) / 2; | |
| 776 | ||
| 777 | if (nLeftMarginTable > 0 && nTopMarginTable > 0) { | |
| 778 | elTable.style.margin = nTopMarginTable + "px " + nLeftMarginTable + "px"; | |
| 779 | } | |
| 780 | }; | |
| 781 | ||
| 782 | /** | |
| 783 | * Clear the QRCode | |
| 784 | */ | |
| 785 | Drawing.prototype.clear = function () { | |
| 786 | this._el.innerHTML = ''; | |
| 787 | }; | |
| 788 | ||
| 789 | return Drawing; | |
| 790 | })() : (function () { // Drawing in Canvas | |
| 791 | function _onMakeImage() { | |
| 792 | this._elImage.src = this._elCanvas.toDataURL("image/png"); | |
| 793 | this._elImage.style.display = "block"; | |
| 794 | this._elCanvas.style.display = "none"; | |
| 795 | } | |
| 796 | ||
| 797 | // Android 2.1 bug workaround | |
| 798 | // http://code.google.com/p/android/issues/detail?id=5141 | |
| 799 | if (this._android && this._android <= 2.1) { | |
| 800 | var factor = 1 / window.devicePixelRatio; | |
| 801 | var drawImage = CanvasRenderingContext2D.prototype.drawImage; | |
| 802 | CanvasRenderingContext2D.prototype.drawImage = function (image, sx, sy, sw, sh, dx, dy, dw, dh) { | |
| 803 | if (("nodeName" in image) && /img/i.test(image.nodeName)) { | |
| 804 | for (var i = arguments.length - 1; i >= 1; i--) { | |
| 805 | arguments[i] = arguments[i] * factor; | |
| 806 | } | |
| 807 | } else if (typeof dw == "undefined") { | |
| 808 | arguments[1] *= factor; | |
| 809 | arguments[2] *= factor; | |
| 810 | arguments[3] *= factor; | |
| 811 | arguments[4] *= factor; | |
| 812 | } | |
| 813 | ||
| 814 | drawImage.apply(this, arguments); | |
| 815 | }; | |
| 816 | } | |
| 817 | ||
| 818 | /** | |
| 819 | * Check whether the user's browser supports Data URI or not | |
| 820 | * | |
| 821 | * @private | |
| 822 | * @param {Function} fSuccess Occurs if it supports Data URI | |
| 823 | * @param {Function} fFail Occurs if it doesn't support Data URI | |
| 824 | */ | |
| 825 | function _safeSetDataURI(fSuccess, fFail) { | |
| 826 | var self = this; | |
| 827 | self._fFail = fFail; | |
| 828 | self._fSuccess = fSuccess; | |
| 829 | ||
| 830 | // Check it just once | |
| 831 | if (self._bSupportDataURI === null) { | |
| 832 | var el = document.createElement("img"); | |
| 833 | var fOnError = function () { | |
| 834 | self._bSupportDataURI = false; | |
| 835 | ||
| 836 | if (self._fFail) { | |
| 837 | self._fFail.call(self); | |
| 838 | } | |
| 839 | }; | |
| 840 | var fOnSuccess = function () { | |
| 841 | self._bSupportDataURI = true; | |
| 842 | ||
| 843 | if (self._fSuccess) { | |
| 844 | self._fSuccess.call(self); | |
| 845 | } | |
| 846 | }; | |
| 847 | ||
| 848 | el.onabort = fOnError; | |
| 849 | el.onerror = fOnError; | |
| 850 | el.onload = fOnSuccess; | |
| 851 | el.src = "data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="; // the Image contains 1px data. | |
| 852 | return; | |
| 853 | } else if (self._bSupportDataURI === true && self._fSuccess) { | |
| 854 | self._fSuccess.call(self); | |
| 855 | } else if (self._bSupportDataURI === false && self._fFail) { | |
| 856 | self._fFail.call(self); | |
| 857 | } | |
| 858 | }; | |
| 859 | ||
| 860 | /** | |
| 861 | * Drawing QRCode by using canvas | |
| 862 | * | |
| 863 | * @constructor | |
| 864 | * @param {HTMLElement} el | |
| 865 | * @param {Object} htOption QRCode Options | |
| 866 | */ | |
| 867 | var Drawing = function (el, htOption) { | |
| 868 | this._bIsPainted = false; | |
| 869 | this._android = _getAndroid(); | |
| 870 | ||
| 871 | this._htOption = htOption; | |
| 872 | this._elCanvas = document.createElement("canvas"); | |
| 873 | this._elCanvas.width = htOption.width; | |
| 874 | this._elCanvas.height = htOption.height; | |
| 875 | el.appendChild(this._elCanvas); | |
| 876 | this._el = el; | |
| 877 | this._oContext = this._elCanvas.getContext("2d"); | |
| 878 | this._bIsPainted = false; | |
| 879 | this._elImage = document.createElement("img"); | |
| 880 | this._elImage.alt = "Scan me!"; | |
| 881 | this._elImage.style.display = "none"; | |
| 882 | this._el.appendChild(this._elImage); | |
| 883 | this._bSupportDataURI = null; | |
| 884 | }; | |
| 885 | ||
| 886 | /** | |
| 887 | * Draw the QRCode | |
| 888 | * | |
| 889 | * @param {QRCode} oQRCode | |
| 890 | */ | |
| 891 | Drawing.prototype.draw = function (oQRCode) { | |
| 892 | var _elImage = this._elImage; | |
| 893 | var _oContext = this._oContext; | |
| 894 | var _htOption = this._htOption; | |
| 895 | ||
| 896 | var nCount = oQRCode.getModuleCount(); | |
| 897 | var nWidth = _htOption.width / nCount; | |
| 898 | var nHeight = _htOption.height / nCount; | |
| 899 | var nRoundedWidth = Math.round(nWidth); | |
| 900 | var nRoundedHeight = Math.round(nHeight); | |
| 901 | ||
| 902 | _elImage.style.display = "none"; | |
| 903 | this.clear(); | |
| 904 | ||
| 905 | for (var row = 0; row < nCount; row++) { | |
| 906 | for (var col = 0; col < nCount; col++) { | |
| 907 | var bIsDark = oQRCode.isDark(row, col); | |
| 908 | var nLeft = col * nWidth; | |
| 909 | var nTop = row * nHeight; | |
| 910 | _oContext.strokeStyle = bIsDark ? _htOption.colorDark : _htOption.colorLight; | |
| 911 | _oContext.lineWidth = 1; | |
| 912 | _oContext.fillStyle = bIsDark ? _htOption.colorDark : _htOption.colorLight; | |
| 913 | _oContext.fillRect(nLeft, nTop, nWidth, nHeight); | |
| 914 | ||
| 915 | // 안티 앨리어싱 방지 처리 | |
| 916 | _oContext.strokeRect( | |
| 917 | Math.floor(nLeft) + 0.5, | |
| 918 | Math.floor(nTop) + 0.5, | |
| 919 | nRoundedWidth, | |
| 920 | nRoundedHeight | |
| 921 | ); | |
| 922 | ||
| 923 | _oContext.strokeRect( | |
| 924 | Math.ceil(nLeft) - 0.5, | |
| 925 | Math.ceil(nTop) - 0.5, | |
| 926 | nRoundedWidth, | |
| 927 | nRoundedHeight | |
| 928 | ); | |
| 929 | } | |
| 930 | } | |
| 931 | ||
| 932 | this._bIsPainted = true; | |
| 933 | }; | |
| 934 | ||
| 935 | /** | |
| 936 | * Make the image from Canvas if the browser supports Data URI. | |
| 937 | */ | |
| 938 | Drawing.prototype.makeImage = function () { | |
| 939 | if (this._bIsPainted) { | |
| 940 | _safeSetDataURI.call(this, _onMakeImage); | |
| 941 | } | |
| 942 | }; | |
| 943 | ||
| 944 | /** | |
| 945 | * Return whether the QRCode is painted or not | |
| 946 | * | |
| 947 | * @return {Boolean} | |
| 948 | */ | |
| 949 | Drawing.prototype.isPainted = function () { | |
| 950 | return this._bIsPainted; | |
| 951 | }; | |
| 952 | ||
| 953 | /** | |
| 954 | * Clear the QRCode | |
| 955 | */ | |
| 956 | Drawing.prototype.clear = function () { | |
| 957 | this._oContext.clearRect(0, 0, this._elCanvas.width, this._elCanvas.height); | |
| 958 | this._bIsPainted = false; | |
| 959 | }; | |
| 960 | ||
| 961 | /** | |
| 962 | * @private | |
| 963 | * @param {Number} nNumber | |
| 964 | */ | |
| 965 | Drawing.prototype.round = function (nNumber) { | |
| 966 | if (!nNumber) { | |
| 967 | return nNumber; | |
| 968 | } | |
| 969 | ||
| 970 | return Math.floor(nNumber * 1000) / 1000; | |
| 971 | }; | |
| 972 | ||
| 973 | return Drawing; | |
| 974 | })(); | |
| 975 | ||
| 976 | /** | |
| 977 | * Get the type by string length | |
| 978 | * | |
| 979 | * @private | |
| 980 | * @param {String} sText | |
| 981 | * @param {Number} nCorrectLevel | |
| 982 | * @return {Number} type | |
| 983 | */ | |
| 984 | function _getTypeNumber(sText, nCorrectLevel) { | |
| 985 | var nType = 1; | |
| 986 | var length = _getUTF8Length(sText); | |
| 987 | ||
| 988 | for (var i = 0, len = QRCodeLimitLength.length; i <= len; i++) { | |
| 989 | var nLimit = 0; | |
| 990 | ||
| 991 | switch (nCorrectLevel) { | |
| 992 | case QRErrorCorrectLevel.L : | |
| 993 | nLimit = QRCodeLimitLength[i][0]; | |
| 994 | break; | |
| 995 | case QRErrorCorrectLevel.M : | |
| 996 | nLimit = QRCodeLimitLength[i][1]; | |
| 997 | break; | |
| 998 | case QRErrorCorrectLevel.Q : | |
| 999 | nLimit = QRCodeLimitLength[i][2]; | |
| 1000 | break; | |
| 1001 | case QRErrorCorrectLevel.H : | |
| 1002 | nLimit = QRCodeLimitLength[i][3]; | |
| 1003 | break; | |
| 1004 | } | |
| 1005 | ||
| 1006 | if (length <= nLimit) { | |
| 1007 | break; | |
| 1008 | } else { | |
| 1009 | nType++; | |
| 1010 | } | |
| 1011 | } | |
| 1012 | ||
| 1013 | if (nType > QRCodeLimitLength.length) { | |
| 1014 | throw new Error("Too long data"); | |
| 1015 | } | |
| 1016 | ||
| 1017 | return nType; | |
| 1018 | } | |
| 1019 | ||
| 1020 | function _getUTF8Length(sText) { | |
| 1021 | var replacedText = encodeURI(sText).toString().replace(/\%[0-9a-fA-F]{2}/g, 'a'); | |
| 1022 | return replacedText.length + (replacedText.length != sText ? 3 : 0); | |
| 1023 | } | |
| 1024 | ||
| 1025 | /** | |
| 1026 | * @class QRCode | |
| 1027 | * @constructor | |
| 1028 | * @example | |
| 1029 | * new QRCode(document.getElementById("test"), "http://jindo.dev.naver.com/collie"); | |
| 1030 | * | |
| 1031 | * @example | |
| 1032 | * var oQRCode = new QRCode("test", { | |
| 1033 | * text : "http://naver.com", | |
| 1034 | * width : 128, | |
| 1035 | * height : 128 | |
| 1036 | * }); | |
| 1037 | * | |
| 1038 | * oQRCode.clear(); // Clear the QRCode. | |
| 1039 | * oQRCode.makeCode("http://map.naver.com"); // Re-create the QRCode. | |
| 1040 | * | |
| 1041 | * @param {HTMLElement|String} el target element or 'id' attribute of element. | |
| 1042 | * @param {Object|String} vOption | |
| 1043 | * @param {String} vOption.text QRCode link data | |
| 1044 | * @param {Number} [vOption.width=256] | |
| 1045 | * @param {Number} [vOption.height=256] | |
| 1046 | * @param {String} [vOption.colorDark="#000000"] | |
| 1047 | * @param {String} [vOption.colorLight="#ffffff"] | |
| 1048 | * @param {QRCode.CorrectLevel} [vOption.correctLevel=QRCode.CorrectLevel.H] [L|M|Q|H] | |
| 1049 | */ | |
| 1050 | QRCode = function (el, vOption) { | |
| 1051 | this._htOption = { | |
| 1052 | width: 256, | |
| 1053 | height: 256, | |
| 1054 | typeNumber: 4, | |
| 1055 | colorDark: "#000000", | |
| 1056 | colorLight: "#ffffff", | |
| 1057 | correctLevel: QRErrorCorrectLevel.H | |
| 1058 | }; | |
| 1059 | ||
| 1060 | if (typeof vOption === 'string') { | |
| 1061 | vOption = { | |
| 1062 | text: vOption | |
| 1063 | }; | |
| 1064 | } | |
| 1065 | ||
| 1066 | // Overwrites options | |
| 1067 | if (vOption) { | |
| 1068 | for (var i in vOption) { | |
| 1069 | this._htOption[i] = vOption[i]; | |
| 1070 | } | |
| 1071 | } | |
| 1072 | ||
| 1073 | if (typeof el == "string") { | |
| 1074 | el = document.getElementById(el); | |
| 1075 | } | |
| 1076 | ||
| 1077 | if (this._htOption.useSVG) { | |
| 1078 | Drawing = svgDrawer; | |
| 1079 | } | |
| 1080 | ||
| 1081 | this._android = _getAndroid(); | |
| 1082 | this._el = el; | |
| 1083 | this._oQRCode = null; | |
| 1084 | this._oDrawing = new Drawing(this._el, this._htOption); | |
| 1085 | ||
| 1086 | if (this._htOption.text) { | |
| 1087 | this.makeCode(this._htOption.text); | |
| 1088 | } | |
| 1089 | }; | |
| 1090 | ||
| 1091 | /** | |
| 1092 | * Make the QRCode | |
| 1093 | * | |
| 1094 | * @param {String} sText link data | |
| 1095 | */ | |
| 1096 | QRCode.prototype.makeCode = function (sText) { | |
| 1097 | this._oQRCode = new QRCodeModel(_getTypeNumber(sText, this._htOption.correctLevel), this._htOption.correctLevel); | |
| 1098 | this._oQRCode.addData(sText); | |
| 1099 | this._oQRCode.make(); | |
| 1100 | this._el.title = sText; | |
| 1101 | this._oDrawing.draw(this._oQRCode); | |
| 1102 | this.makeImage(); | |
| 1103 | }; | |
| 1104 | ||
| 1105 | /** | |
| 1106 | * Make the Image from Canvas element | |
| 1107 | * - It occurs automatically | |
| 1108 | * - Android below 3 doesn't support Data-URI spec. | |
| 1109 | * | |
| 1110 | * @private | |
| 1111 | */ | |
| 1112 | QRCode.prototype.makeImage = function () { | |
| 1113 | if (typeof this._oDrawing.makeImage == "function" && (!this._android || this._android >= 3)) { | |
| 1114 | this._oDrawing.makeImage(); | |
| 1115 | } | |
| 1116 | }; | |
| 1117 | ||
| 1118 | /** | |
| 1119 | * Clear the QRCode | |
| 1120 | */ | |
| 1121 | QRCode.prototype.clear = function () { | |
| 1122 | this._oDrawing.clear(); | |
| 1123 | }; | |
| 1124 | ||
| 1125 | /** | |
| 1126 | * @name QRCode.CorrectLevel | |
| 1127 | */ | |
| 1128 | QRCode.CorrectLevel = QRErrorCorrectLevel; | |
| 1129 | ||
| 1130 | exports('QRCode', QRCode); | |
| 1131 | }); | |
