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plantuml/src/zext/plantuml/com/google/zxing/client/j2se/MatrixToImageWriter.java

77 lines
2.3 KiB
Java

/*
* Copyright 2009 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 zext.plantuml.com.google.zxing.client.j2se;
import java.awt.image.BufferedImage;
import zext.plantuml.com.google.zxing.common.BitMatrix;
/**
* Writes a {@link BitMatrix} to {@link BufferedImage},
* file or stream. Provided here instead of core since it depends on
* Java SE libraries.
*
* @author Sean Owen
*/
public final class MatrixToImageWriter {
// ::remove folder when __HAXE__
private static final int BLACK = 0xFF000000;
private static final int WHITE = 0xFFFFFFFF;
private MatrixToImageWriter() {}
/**
* Renders a {@link BitMatrix} as an image, where "false" bits are rendered
* as white, and "true" bits are rendered as black.
*/
public static BufferedImage toBufferedImage(BitMatrix matrix, int fore, int back) {
int width = matrix.getWidth();
int height = matrix.getHeight();
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
for (int x = 0; x < width; x++) {
for (int y = 0; y < height; y++) {
image.setRGB(x, y, matrix.get(x, y) ? fore : back);
}
}
return image;
}
// /**
// * Writes a {@link BitMatrix} to a file.
// *
// * @see #toBufferedImage(BitMatrix)
// */
// public static void writeToFile(BitMatrix matrix, String format, File file)
// throws IOException {
// BufferedImage image = toBufferedImage(matrix);
// ImageIO.write(image, format, file);
// }
//
// /**
// * Writes a {@link BitMatrix} to a stream.
// *
// * @see #toBufferedImage(BitMatrix)
// */
// public static void writeToStream(BitMatrix matrix, String format, OutputStream stream)
// throws IOException {
// BufferedImage image = toBufferedImage(matrix);
// ImageIO.write(image, format, stream);
// }
}