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/*
Copyright 2006 Jerry Huxtable
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.jhlabs.image;
import java.awt.*;
import java.awt.geom.*;
import java.awt.image.*;
/**
* A filter which crops an image to a given rectangle.
*/
public class CropFilter extends AbstractBufferedImageOp {
private int x;
private int y;
private int width;
private int height;
public CropFilter() {
this(0, 0, 32, 32);
}
public CropFilter(int x, int y, int width, int height) {
this.x = x;
this.y = y;
this.width = width;
this.height = height;
}
public void setX(int x) {
this.x = x;
}
public int getX() {
return x;
}
public void setY(int y) {
this.y = y;
}
public int getY() {
return y;
}
public void setWidth(int width) {
this.width = width;
}
public int getWidth() {
return width;
}
public void setHeight(int height) {
this.height = height;
}
public int getHeight() {
return height;
}
public BufferedImage filter( BufferedImage src, BufferedImage dst ) {
int w = src.getWidth();
int h = src.getHeight();
if ( dst == null ) {
ColorModel dstCM = src.getColorModel();
dst = new BufferedImage(dstCM, dstCM.createCompatibleWritableRaster(width, height), dstCM.isAlphaPremultiplied(), null);
}
Graphics2D g = dst.createGraphics();
g.drawRenderedImage( src, AffineTransform.getTranslateInstance(-x, -y) );
g.dispose();
return dst;
}
public String toString() {
return "Distort/Crop";
}
}
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