@tjieco/library
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TypeScript port of ZXing multi-format 1D/2D barcode image processing library, with Code128 and ITF support.
82 lines • 3.41 kB
JavaScript
;
/*
* Copyright 2007 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.
*/
Object.defineProperty(exports, "__esModule", { value: true });
/*namespace com.google.zxing.qrcode.decoder {*/
var Exception_1 = require("./../../Exception");
/**
* <p>See ISO 18004:2006, 6.5.1. This enum encapsulates the four error correction levels
* defined by the QR code standard.</p>
*
* @author Sean Owen
*/
var ErrorCorrectionLevel = /** @class */ (function () {
function ErrorCorrectionLevel(value, stringValue, bits /*int*/) {
this.value = value;
this.stringValue = stringValue;
this.bits = bits;
ErrorCorrectionLevel.FOR_BITS.set(bits, this);
ErrorCorrectionLevel.FOR_VALUE.set(value, this);
}
ErrorCorrectionLevel.prototype.getValue = function () {
return this.value;
};
ErrorCorrectionLevel.prototype.getBits = function () {
return this.bits;
};
ErrorCorrectionLevel.fromString = function (s) {
switch (s) {
case 'L': return ErrorCorrectionLevel.L;
case 'M': return ErrorCorrectionLevel.M;
case 'Q': return ErrorCorrectionLevel.Q;
case 'H': return ErrorCorrectionLevel.H;
default: throw new Exception_1.default(Exception_1.default.ArgumentException, s + 'not available');
}
};
ErrorCorrectionLevel.prototype.toString = function () {
return this.stringValue;
};
ErrorCorrectionLevel.prototype.equals = function (o) {
if (!(o instanceof ErrorCorrectionLevel)) {
return false;
}
var other = o;
return this.value === other.value;
};
/**
* @param bits int containing the two bits encoding a QR Code's error correction level
* @return ErrorCorrectionLevel representing the encoded error correction level
*/
ErrorCorrectionLevel.forBits = function (bits /*int*/) {
if (bits < 0 || bits >= ErrorCorrectionLevel.FOR_BITS.size) {
throw new Exception_1.default(Exception_1.default.IllegalArgumentException);
}
return ErrorCorrectionLevel.FOR_BITS.get(bits);
};
ErrorCorrectionLevel.FOR_BITS = new Map();
ErrorCorrectionLevel.FOR_VALUE = new Map();
/** L = ~7% correction */
ErrorCorrectionLevel.L = new ErrorCorrectionLevel(0 /* L */, 'L', 0x01);
/** M = ~15% correction */
ErrorCorrectionLevel.M = new ErrorCorrectionLevel(1 /* M */, 'M', 0x00);
/** Q = ~25% correction */
ErrorCorrectionLevel.Q = new ErrorCorrectionLevel(2 /* Q */, 'Q', 0x03);
/** H = ~30% correction */
ErrorCorrectionLevel.H = new ErrorCorrectionLevel(3 /* H */, 'H', 0x02);
return ErrorCorrectionLevel;
}());
exports.default = ErrorCorrectionLevel;
//# sourceMappingURL=ErrorCorrectionLevel.js.map