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https://gitee.com/akwkevin/aistudio.-wpf.-diagram
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101 lines
4.5 KiB
C#
101 lines
4.5 KiB
C#
/*
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* Copyright 2013 ZXing.Net 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 System.Collections.Generic;
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using ZXing.Common;
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namespace ZXing.OneD
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{
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/// <summary>
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/// This object renders a MSI code as a <see cref="BitMatrix"/>.
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/// </summary>
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public sealed class MSIWriter : OneDimensionalCodeWriter
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{
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private static readonly int[] startWidths = new [] { 2, 1 };
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private static readonly int[] endWidths = new[] { 1, 2, 1 };
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private static readonly int[][] numberWidths = new[]
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{
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new[] { 1, 2, 1, 2, 1, 2, 1, 2 },
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new[] { 1, 2, 1, 2, 1, 2, 2, 1 },
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new[] { 1, 2, 1, 2, 2, 1, 1, 2 },
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new[] { 1, 2, 1, 2, 2, 1, 2, 1 },
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new[] { 1, 2, 2, 1, 1, 2, 1, 2 },
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new[] { 1, 2, 2, 1, 1, 2, 2, 1 },
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new[] { 1, 2, 2, 1, 2, 1, 1, 2 },
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new[] { 1, 2, 2, 1, 2, 1, 2, 1 },
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new[] { 2, 1, 1, 2, 1, 2, 1, 2 },
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new[] { 2, 1, 1, 2, 1, 2, 2, 1 }
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};
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/// <summary>
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/// Encode the contents following specified format.
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/// {@code width} and {@code height} are required size. This method may return bigger size
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/// {@code BitMatrix} when specified size is too small. The user can set both {@code width} and
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/// {@code height} to zero to get minimum size barcode. If negative value is set to {@code width}
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/// or {@code height}, {@code IllegalArgumentException} is thrown.
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/// </summary>
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/// <param name="contents"></param>
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/// <param name="format"></param>
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/// <param name="width"></param>
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/// <param name="height"></param>
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/// <param name="hints"></param>
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/// <returns></returns>
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public override BitMatrix encode(String contents,
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BarcodeFormat format,
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int width,
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int height,
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IDictionary<EncodeHintType, object> hints)
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{
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if (format != BarcodeFormat.MSI)
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{
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throw new ArgumentException("Can only encode MSI, 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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/// <summary>
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/// Encode the contents to byte array expression of one-dimensional barcode.
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/// Start code and end code should be included in result, and side margins should not be included.
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/// <returns>a {@code boolean[]} of horizontal pixels (false = white, true = black)</returns>
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/// </summary>
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/// <param name="contents"></param>
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/// <returns></returns>
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override public bool[] encode(String contents)
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{
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var length = contents.Length;
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for (var i = 0; i < length; i++)
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{
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int indexInString = MSIReader.ALPHABET_STRING.IndexOf(contents[i]);
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if (indexInString < 0)
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throw new ArgumentException("Requested contents contains a not encodable character: '" + contents[i] + "'");
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}
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var codeWidth = 3 + length*12 + 4;
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var result = new bool[codeWidth];
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var pos = appendPattern(result, 0, startWidths, true);
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for (var i = 0; i < length; i++)
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{
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var indexInString = MSIReader.ALPHABET_STRING.IndexOf(contents[i]);
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var widths = numberWidths[indexInString];
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pos += appendPattern(result, pos, widths, true);
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}
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appendPattern(result, pos, endWidths, true);
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return result;
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}
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}
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} |
