100 lines
3.6 KiB
Java
100 lines
3.6 KiB
Java
/**
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*
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* Copyright 2006 Jerry Huxtable
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.jivesoftware.smackx.jingleold.mediaimpl.sshare.api;
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import java.awt.Rectangle;
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import java.awt.RenderingHints;
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import java.awt.geom.Point2D;
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import java.awt.geom.Rectangle2D;
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import java.awt.image.BufferedImage;
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import java.awt.image.BufferedImageOp;
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import java.awt.image.ColorModel;
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/**
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* A convenience class which implements those methods of BufferedImageOp which are rarely changed.
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*/
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public abstract class AbstractBufferedImageOp implements BufferedImageOp, Cloneable {
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public BufferedImage createCompatibleDestImage(BufferedImage src, ColorModel dstCM) {
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if ( dstCM == null )
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dstCM = src.getColorModel();
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return new BufferedImage(dstCM, dstCM.createCompatibleWritableRaster(src.getWidth(), src.getHeight()), dstCM.isAlphaPremultiplied(), null);
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}
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public Rectangle2D getBounds2D( BufferedImage src ) {
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return new Rectangle(0, 0, src.getWidth(), src.getHeight());
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}
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public Point2D getPoint2D( Point2D srcPt, Point2D dstPt ) {
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if ( dstPt == null )
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dstPt = new Point2D.Double();
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dstPt.setLocation( srcPt.getX(), srcPt.getY() );
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return dstPt;
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}
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public RenderingHints getRenderingHints() {
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return null;
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}
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/**
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* A convenience method for getting ARGB pixels from an image. This tries to avoid the performance
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* penalty of BufferedImage.getRGB unmanaging the image.
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* @param image a BufferedImage object
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* @param x the left edge of the pixel block
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* @param y the right edge of the pixel block
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* @param width the width of the pixel arry
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* @param height the height of the pixel arry
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* @param pixels the array to hold the returned pixels. May be null.
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* @return the pixels
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* @see #setRGB
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*/
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public int[] getRGB( BufferedImage image, int x, int y, int width, int height, int[] pixels ) {
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int type = image.getType();
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if ( type == BufferedImage.TYPE_INT_ARGB || type == BufferedImage.TYPE_INT_RGB )
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return (int [])image.getRaster().getDataElements( x, y, width, height, pixels );
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return image.getRGB( x, y, width, height, pixels, 0, width );
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}
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/**
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* A convenience method for setting ARGB pixels in an image. This tries to avoid the performance
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* penalty of BufferedImage.setRGB unmanaging the image.
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* @param image a BufferedImage object
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* @param x the left edge of the pixel block
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* @param y the right edge of the pixel block
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* @param width the width of the pixel arry
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* @param height the height of the pixel arry
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* @param pixels the array of pixels to set
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* @see #getRGB
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*/
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public void setRGB( BufferedImage image, int x, int y, int width, int height, int[] pixels ) {
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int type = image.getType();
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if ( type == BufferedImage.TYPE_INT_ARGB || type == BufferedImage.TYPE_INT_RGB )
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image.getRaster().setDataElements( x, y, width, height, pixels );
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else
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image.setRGB( x, y, width, height, pixels, 0, width );
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}
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public Object clone() {
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try {
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return super.clone();
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}
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catch ( CloneNotSupportedException e ) {
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return null;
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}
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}
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}
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