2 * Copyright 2008 ZXing authors
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4 * Licensed under the Apache License, Version 2.0 (the "License");
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5 * you may not use this file except in compliance with the License.
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6 * You may obtain a copy of the License at
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8 * http://www.apache.org/licenses/LICENSE-2.0
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10 * Unless required by applicable law or agreed to in writing, software
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11 * distributed under the License is distributed on an "AS IS" BASIS,
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12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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13 * See the License for the specific language governing permissions and
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14 * limitations under the License.
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16 namespace com.google.zxing.common
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21 /// <summary> A class which wraps a 2D array of bytes. The default usage is signed. If you want to use it as a
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22 /// unsigned container, it's up to you to do byteValue & 0xff at each location.
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24 /// JAVAPORT: I'm not happy about the argument ordering throughout the file, as I always like to have
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25 /// the horizontal component first, but this is for compatibility with the C++ code. The original
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26 /// code was a 2D array of ints, but since it only ever gets assigned -1, 0, and 1, I'm going to use
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27 /// less memory and go with bytes.
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30 /// <author> dswitkin@google.com (Daniel Switkin)
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33 public sealed class ByteMatrix
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35 private sbyte[][] bytes;
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40 public ByteMatrix(int height, int width) {
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41 bytes = new sbyte[height][];
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42 for (int i = 0; i < height; i++) {
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43 bytes[i] = new sbyte[width];
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45 this.Height = height;
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59 public sbyte get(int y, int x)
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64 public sbyte[][] getArray()
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69 public void set(int y, int x, sbyte value)
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71 bytes[y][x] = value;
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74 public void set(int y, int x, int value)
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76 bytes[y][x] = (sbyte)value;
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79 public void clear(sbyte value)
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81 for (int y = 0; y < Height; ++y)
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83 for (int x = 0; x < Width; ++x)
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85 bytes[y][x] = value;
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90 public String toString()
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92 StringBuilder result = new StringBuilder();
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93 for (int y = 0; y < Height; ++y)
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95 for (int x = 0; x < Width; ++x)
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97 switch (bytes[y][x])
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100 result.Append(" 0");
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103 result.Append(" 1");
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106 result.Append(" ");
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110 result.Append('\n');
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112 return result.ToString();
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