de.uniks.networkparser.bytes.qr.ByteMatrix Maven / Gradle / Ivy

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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 de.uniks.networkparser.bytes.qr;

/**
 * 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 [email protected] (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];
	}

	/**
	* @return an internal representation as bytes, in row-major order. array[y][x] represents point (x,y)
	*/
	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;
			}
		}
	}

	@Override
	public String toString() {
		StringBuilder result = new StringBuilder(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();
	}
}