@zxing/library
Version:
TypeScript port of ZXing multi-format 1D/2D barcode image processing library.
92 lines (91 loc) • 3.68 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 __());
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
/*namespace com.google.zxing.oned {*/
var BarcodeFormat_1 = require("../BarcodeFormat");
var Result_1 = require("../Result");
var NotFoundException_1 = require("../NotFoundException");
var EAN13Reader_1 = require("./EAN13Reader");
var UPCEANReader_1 = require("./UPCEANReader");
/**
* Encapsulates functionality and implementation that is common to all families
* of one-dimensional barcodes.
*
* @author dswitkin@google.com (Daniel Switkin)
* @author Sean Owen
* @author sam2332 (Sam Rudloff)
*
* @source https://github.com/zxing/zxing/blob/3c96923276dd5785d58eb970b6ba3f80d36a9505/core/src/main/java/com/google/zxing/oned/UPCAReader.java
*
* @experimental
*/
var UPCAReader = /** @class */ (function (_super) {
__extends(UPCAReader, _super);
function UPCAReader() {
var _this = _super !== null && _super.apply(this, arguments) || this;
_this.ean13Reader = new EAN13Reader_1.default();
return _this;
}
// @Override
UPCAReader.prototype.getBarcodeFormat = function () {
return BarcodeFormat_1.default.UPC_A;
};
// Note that we don't try rotation without the try harder flag, even if rotation was supported.
// @Override
UPCAReader.prototype.decode = function (image, hints) {
return this.maybeReturnResult(this.ean13Reader.decode(image));
};
// @Override
UPCAReader.prototype.decodeRow = function (rowNumber, row, hints) {
return this.maybeReturnResult(this.ean13Reader.decodeRow(rowNumber, row, hints));
};
// @Override
UPCAReader.prototype.decodeMiddle = function (row, startRange, resultString) {
return this.ean13Reader.decodeMiddle(row, startRange, resultString);
};
UPCAReader.prototype.maybeReturnResult = function (result) {
var text = result.getText();
if (text.charAt(0) === '0') {
var upcaResult = new Result_1.default(text.substring(1), null, null, result.getResultPoints(), BarcodeFormat_1.default.UPC_A);
if (result.getResultMetadata() != null) {
upcaResult.putAllMetadata(result.getResultMetadata());
}
return upcaResult;
}
else {
throw new NotFoundException_1.default();
}
};
UPCAReader.prototype.reset = function () {
this.ean13Reader.reset();
};
return UPCAReader;
}(UPCEANReader_1.default));
exports.default = UPCAReader;