package com.hphoto.image;
import java.awt.*;
import java.awt.geom.*;
import java.awt.image.*;
/**
* A convenience class which implements those methods of BufferedImageOp which are rarely changed.
*/
public abstract class AbstractBufferedImageOp implements BufferedImageOp, Cloneable {
public BufferedImage createCompatibleDestImage(BufferedImage src, ColorModel dstCM) {
if ( dstCM == null )
dstCM = src.getColorModel();
return new BufferedImage(dstCM, dstCM.createCompatibleWritableRaster(src.getWidth(), src.getHeight()), dstCM.isAlphaPremultiplied(), null);
}
public Rectangle2D getBounds2D( BufferedImage src ) {
return new Rectangle(0, 0, src.getWidth(), src.getHeight());
}
public Point2D getPoint2D( Point2D srcPt, Point2D dstPt ) {
if ( dstPt == null )
dstPt = new Point2D.Double();
dstPt.setLocation( srcPt.getX(), srcPt.getY() );
return dstPt;
}
public RenderingHints getRenderingHints() {
return null;
}
/**
* A convenience method for getting ARGB pixels from an image. This tries to avoid the performance
* penalty of BufferedImage.getRGB unmanaging the image.
* @param image a BufferedImage object
* @param x the left edge of the pixel block
* @param y the right edge of the pixel block
* @param width the width of the pixel arry
* @param height the height of the pixel arry
* @param pixels the array to hold the returned pixels. May be null.
* @return the pixels
* @see #setRGB
*/
public int[] getRGB( BufferedImage image, int x, int y, int width, int height, int[] pixels ) {
int type = image.getType();
if ( type == BufferedImage.TYPE_INT_ARGB || type == BufferedImage.TYPE_INT_RGB )
return (int [])image.getRaster().getDataElements( x, y, width, height, pixels );
return image.getRGB( x, y, width, height, pixels, 0, width );
}
/**
* A convenience method for setting ARGB pixels in an image. This tries to avoid the performance
* penalty of BufferedImage.setRGB unmanaging the image.
* @param image a BufferedImage object
* @param x the left edge of the pixel block
* @param y the right edge of the pixel block
* @param width the width of the pixel arry
* @param height the height of the pixel arry
* @param pixels the array of pixels to set
* @see #getRGB
*/
public void setRGB( BufferedImage image, int x, int y, int width, int height, int[] pixels ) {
int type = image.getType();
if ( type == BufferedImage.TYPE_INT_ARGB || type == BufferedImage.TYPE_INT_RGB )
image.getRaster().setDataElements( x, y, width, height, pixels );
else
image.setRGB( x, y, width, height, pixels, 0, width );
}
public Object clone() {
try {
return super.clone();
}
catch ( CloneNotSupportedException e ) {
return null;
}
}
}