@zxing/library
Version:
TypeScript port of ZXing multi-format 1D/2D barcode image processing library.
119 lines • 4.69 kB
JavaScript
;
/*
* Copyright 2008 ZXing authors
*
* 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.
*/
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
var __values = (this && this.__values) || function (o) {
var m = typeof Symbol === "function" && o[Symbol.iterator], i = 0;
if (m) return m.call(o);
return {
next: function () {
if (o && i >= o.length) o = void 0;
return { value: o && o[i++], done: !o };
}
};
};
Object.defineProperty(exports, "__esModule", { value: true });
var BarcodeFormat_1 = require("../BarcodeFormat");
var DecodeHintType_1 = require("../DecodeHintType");
var OneDReader_1 = require("./OneDReader");
var EAN13Reader_1 = require("./EAN13Reader");
var EAN8Reader_1 = require("./EAN8Reader");
var NotFoundException_1 = require("../NotFoundException");
/**
* <p>A reader that can read all available UPC/EAN formats. If a caller wants to try to
* read all such formats, it is most efficient to use this implementation rather than invoke
* individual readers.</p>
*
* @author Sean Owen
*/
var MultiFormatUPCEANReader = /** @class */ (function (_super) {
__extends(MultiFormatUPCEANReader, _super);
function MultiFormatUPCEANReader(hints) {
var _this = _super.call(this) || this;
var possibleFormats = hints == null ? null : hints.get(DecodeHintType_1.default.POSSIBLE_FORMATS);
var readers = [];
if (possibleFormats != null) {
if (possibleFormats.indexOf(BarcodeFormat_1.default.EAN_13) > -1) {
readers.push(new EAN13Reader_1.default());
}
if (possibleFormats.indexOf(BarcodeFormat_1.default.EAN_8) > -1) {
readers.push(new EAN8Reader_1.default());
}
// todo add UPC_A, UPC_E
}
if (readers.length === 0) {
readers.push(new EAN13Reader_1.default());
readers.push(new EAN8Reader_1.default());
// todo add UPC_A, UPC_E
}
_this.readers = readers;
return _this;
}
MultiFormatUPCEANReader.prototype.decodeRow = function (rowNumber, row, hints) {
var e_1, _a;
try {
for (var _b = __values(this.readers), _c = _b.next(); !_c.done; _c = _b.next()) {
var reader = _c.value;
try {
return reader.decodeRow(rowNumber, row, hints);
// TODO ean13MayBeUPCA
}
catch (err) {
// continue;
}
}
}
catch (e_1_1) { e_1 = { error: e_1_1 }; }
finally {
try {
if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
}
finally { if (e_1) throw e_1.error; }
}
throw new NotFoundException_1.default();
};
MultiFormatUPCEANReader.prototype.reset = function () {
var e_2, _a;
try {
for (var _b = __values(this.readers), _c = _b.next(); !_c.done; _c = _b.next()) {
var reader = _c.value;
reader.reset();
}
}
catch (e_2_1) { e_2 = { error: e_2_1 }; }
finally {
try {
if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
}
finally { if (e_2) throw e_2.error; }
}
};
return MultiFormatUPCEANReader;
}(OneDReader_1.default));
exports.default = MultiFormatUPCEANReader;
//# sourceMappingURL=MultiFormatUPCEANReader.js.map