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https://gitee.com/akwkevin/aistudio.-wpf.-diagram
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添加项目文件。
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70
zxing.core/xx/aztec/encoder/BinaryShiftToken.cs
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70
zxing.core/xx/aztec/encoder/BinaryShiftToken.cs
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/*
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* Copyright 2013 ZXing authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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using System;
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using ZXing.Common;
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namespace ZXing.Aztec.Internal
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{
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public sealed class BinaryShiftToken : Token
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{
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private readonly short binaryShiftStart;
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private readonly short binaryShiftByteCount;
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public BinaryShiftToken(Token previous,
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int binaryShiftStart,
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int binaryShiftByteCount)
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: base(previous)
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{
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this.binaryShiftStart = (short) binaryShiftStart;
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this.binaryShiftByteCount = (short) binaryShiftByteCount;
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}
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public override void appendTo(BitArray bitArray, byte[] text)
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{
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for (int i = 0; i < binaryShiftByteCount; i++)
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{
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if (i == 0 || (i == 31 && binaryShiftByteCount <= 62))
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{
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// We need a header before the first character, and before
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// character 31 when the total byte code is <= 62
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bitArray.appendBits(31, 5); // BINARY_SHIFT
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if (binaryShiftByteCount > 62)
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{
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bitArray.appendBits(binaryShiftByteCount - 31, 16);
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}
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else if (i == 0)
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{
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// 1 <= binaryShiftByteCode <= 62
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bitArray.appendBits(Math.Min(binaryShiftByteCount, (short) 31), 5);
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}
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else
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{
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// 32 <= binaryShiftCount <= 62 and i == 31
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bitArray.appendBits(binaryShiftByteCount - 31, 5);
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}
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}
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bitArray.appendBits(text[binaryShiftStart + i], 8);
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}
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}
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public override String ToString()
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{
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return "<" + binaryShiftStart + "::" + (binaryShiftStart + binaryShiftByteCount - 1) + '>';
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}
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}
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}
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