com.google.zxing.aztec.encoder.Token Maven / Gradle / Ivy
/*
* Copyright 2013 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.
*/
package com.google.zxing.aztec.encoder;
import com.google.zxing.common.BitArray;
abstract class Token {
static final Token EMPTY = new SimpleToken(null, 0, 0);
private final Token previous;
Token(Token previous) {
this.previous = previous;
}
final Token getPrevious() {
return previous;
}
final Token add(int value, int bitCount) {
return new SimpleToken(this, value, bitCount);
}
final Token addBinaryShift(int start, int byteCount) {
//int bitCount = (byteCount * 8) + (byteCount <= 31 ? 10 : byteCount <= 62 ? 20 : 21);
return new BinaryShiftToken(this, start, byteCount);
}
abstract void appendTo(BitArray bitArray, byte[] text);
}