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/*
* Copyright 2008 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.qrcode.encoder;
/**
* A class which wraps a 2D array of bytes. The default usage is signed. If you want to use it as a
* unsigned container, it's up to you to do byteValue & 0xff at each location.
*
* JAVAPORT: The original code was a 2D array of ints, but since it only ever gets assigned
* -1, 0, and 1, I'm going to use less memory and go with bytes.
*
* @author dswitkin@google.com (Daniel Switkin)
*/
public final class ByteMatrix {
private final byte[][] bytes;
private final int width;
private final int height;
public ByteMatrix(int width, int height) {
bytes = new byte[height][width];
this.width = width;
this.height = height;
}
public int getHeight() {
return height;
}
public int getWidth() {
return width;
}
public byte get(int x, int y) {
return bytes[y][x];
}
public byte[][] getArray() {
return bytes;
}
public void set(int x, int y, byte value) {
bytes[y][x] = value;
}
public void set(int x, int y, int value) {
bytes[y][x] = (byte) value;
}
public void set(int x, int y, boolean value) {
bytes[y][x] = (byte) (value ? 1 : 0);
}
public void clear(byte value) {
for (int y = 0; y < height; ++y) {
for (int x = 0; x < width; ++x) {
bytes[y][x] = value;
}
}
}
public String toString() {
StringBuffer result = new StringBuffer(2 * width * height + 2);
for (int y = 0; y < height; ++y) {
for (int x = 0; x < width; ++x) {
switch (bytes[y][x]) {
case 0:
result.append(" 0");
break;
case 1:
result.append(" 1");
break;
default:
result.append(" ");
break;
}
}
result.append('\n');
}
return result.toString();
}
}
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