mirror of
https://github.com/zxing/zxing.git
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7616c4d06d
git-svn-id: https://zxing.googlecode.com/svn/trunk@2558 59b500cc-1b3d-0410-9834-0bbf25fbcc57
94 lines
3.3 KiB
C#
94 lines
3.3 KiB
C#
using System.Collections.Generic;
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/*
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* Copyright 2010 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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namespace com.google.zxing.oned
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{
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using BarcodeFormat = com.google.zxing.BarcodeFormat;
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using EncodeHintType = com.google.zxing.EncodeHintType;
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using WriterException = com.google.zxing.WriterException;
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using BitMatrix = com.google.zxing.common.BitMatrix;
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/// <summary>
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/// This object renders a CODE39 code as a <seealso cref="BitMatrix"/>.
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///
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/// @author erik.barbara@gmail.com (Erik Barbara)
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/// </summary>
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public sealed class Code39Writer : OneDimensionalCodeWriter
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{
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//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
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//ORIGINAL LINE: public com.google.zxing.common.BitMatrix encode(String contents, com.google.zxing.BarcodeFormat format, int width, int height, java.util.Map<com.google.zxing.EncodeHintType,?> hints) throws com.google.zxing.WriterException
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public override BitMatrix encode(string contents, BarcodeFormat format, int width, int height, IDictionary<EncodeHintType,object> hints)
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{
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if (format != BarcodeFormat.CODE_39)
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{
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throw new System.ArgumentException("Can only encode CODE_39, but got " + format);
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}
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return base.encode(contents, format, width, height, hints);
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}
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public override bool[] encode(string contents)
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{
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int length = contents.Length;
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if (length > 80)
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{
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throw new System.ArgumentException("Requested contents should be less than 80 digits long, but got " + length);
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}
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int[] widths = new int[9];
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int codeWidth = 24 + 1 + length;
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for (int i = 0; i < length; i++)
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{
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int indexInString = Code39Reader.ALPHABET_STRING.IndexOf(contents[i]);
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toIntArray(Code39Reader.CHARACTER_ENCODINGS[indexInString], widths);
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foreach (int width in widths)
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{
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codeWidth += width;
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}
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}
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bool[] result = new bool[codeWidth];
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toIntArray(Code39Reader.CHARACTER_ENCODINGS[39], widths);
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int pos = appendPattern(result, 0, widths, true);
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int[] narrowWhite = {1};
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pos += appendPattern(result, pos, narrowWhite, false);
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//append next character to bytematrix
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for (int i = length - 1; i >= 0; i--)
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{
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int indexInString = Code39Reader.ALPHABET_STRING.IndexOf(contents[i]);
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toIntArray(Code39Reader.CHARACTER_ENCODINGS[indexInString], widths);
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pos += appendPattern(result, pos, widths, true);
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pos += appendPattern(result, pos, narrowWhite, false);
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}
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toIntArray(Code39Reader.CHARACTER_ENCODINGS[39], widths);
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pos += appendPattern(result, pos, widths, true);
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return result;
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}
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private static void toIntArray(int a, int[] toReturn)
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{
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for (int i = 0; i < 9; i++)
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{
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int temp = a & (1 << i);
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toReturn[i] = temp == 0 ? 1 : 2;
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}
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}
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}
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} |