@tjieco/library
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TypeScript port of ZXing multi-format 1D/2D barcode image processing library, with Code128 and ITF support.
98 lines • 4.24 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, 6.4.1, Tables 2 and 3. This enum encapsulates the various modes in which
* data can be encoded to bits in the QR code standard.</p>
*
* @author Sean Owen
*/
var Mode = /** @class */ (function () {
function Mode(value, stringValue, characterCountBitsForVersions, bits /*int*/) {
this.value = value;
this.stringValue = stringValue;
this.characterCountBitsForVersions = characterCountBitsForVersions;
this.bits = bits;
Mode.FOR_BITS.set(bits, this);
Mode.FOR_VALUE.set(value, this);
}
/**
* @param bits four bits encoding a QR Code data mode
* @return Mode encoded by these bits
* @throws IllegalArgumentException if bits do not correspond to a known mode
*/
Mode.forBits = function (bits /*int*/) {
var mode = Mode.FOR_BITS.get(bits);
if (undefined === mode) {
throw new Exception_1.default(Exception_1.default.IllegalArgumentException);
}
return mode;
};
/**
* @param version version in question
* @return number of bits used, in this QR Code symbol {@link Version}, to encode the
* count of characters that will follow encoded in this Mode
*/
Mode.prototype.getCharacterCountBits = function (version) {
var versionNumber = version.getVersionNumber();
var offset;
if (versionNumber <= 9) {
offset = 0;
}
else if (versionNumber <= 26) {
offset = 1;
}
else {
offset = 2;
}
return this.characterCountBitsForVersions[offset];
};
Mode.prototype.getValue = function () {
return this.value;
};
Mode.prototype.getBits = function () {
return this.bits;
};
Mode.prototype.equals = function (o) {
if (!(o instanceof Mode)) {
return false;
}
var other = o;
return this.value === other.value;
};
Mode.prototype.toString = function () {
return this.stringValue;
};
Mode.FOR_BITS = new Map();
Mode.FOR_VALUE = new Map();
Mode.TERMINATOR = new Mode(0 /* TERMINATOR */, 'TERMINATOR', Int32Array.from([0, 0, 0]), 0x00); // Not really a mode...
Mode.NUMERIC = new Mode(1 /* NUMERIC */, 'NUMERIC', Int32Array.from([10, 12, 14]), 0x01);
Mode.ALPHANUMERIC = new Mode(2 /* ALPHANUMERIC */, 'ALPHANUMERIC', Int32Array.from([9, 11, 13]), 0x02);
Mode.STRUCTURED_APPEND = new Mode(3 /* STRUCTURED_APPEND */, 'STRUCTURED_APPEND', Int32Array.from([0, 0, 0]), 0x03); // Not supported
Mode.BYTE = new Mode(4 /* BYTE */, 'BYTE', Int32Array.from([8, 16, 16]), 0x04);
Mode.ECI = new Mode(5 /* ECI */, 'ECI', Int32Array.from([0, 0, 0]), 0x07); // character counts don't apply
Mode.KANJI = new Mode(6 /* KANJI */, 'KANJI', Int32Array.from([8, 10, 12]), 0x08);
Mode.FNC1_FIRST_POSITION = new Mode(7 /* FNC1_FIRST_POSITION */, 'FNC1_FIRST_POSITION', Int32Array.from([0, 0, 0]), 0x05);
Mode.FNC1_SECOND_POSITION = new Mode(8 /* FNC1_SECOND_POSITION */, 'FNC1_SECOND_POSITION', Int32Array.from([0, 0, 0]), 0x09);
/** See GBT 18284-2000; "Hanzi" is a transliteration of this mode name. */
Mode.HANZI = new Mode(9 /* HANZI */, 'HANZI', Int32Array.from([8, 10, 12]), 0x0D);
return Mode;
}());
exports.default = Mode;
//# sourceMappingURL=Mode.js.map