135 lines
3.9 KiB
Java
135 lines
3.9 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. 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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/**
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* @author Igor V. Stolyarov
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* @version $Revision$
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*/
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package java.awt.image;
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import java.util.Hashtable;
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/**
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* The ImageFilter class provides a filter for delivering image data from an
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* ImageProducer to an ImageConsumer.
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*
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* @since Android 1.0
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*/
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public class ImageFilter implements ImageConsumer, Cloneable {
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/**
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* The consumer.
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*/
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protected ImageConsumer consumer;
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/**
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* Instantiates a new ImageFilter.
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*/
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public ImageFilter() {
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super();
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}
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/**
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* Gets an instance of an ImageFilter object which performs the filtering
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* for the specified ImageConsumer.
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*
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* @param ic
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* the specified ImageConsumer.
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* @return an ImageFilter used to perform the filtering for the specified
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* ImageConsumer.
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*/
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public ImageFilter getFilterInstance(ImageConsumer ic) {
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ImageFilter filter = (ImageFilter)clone();
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filter.consumer = ic;
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return filter;
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}
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@SuppressWarnings("unchecked")
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public void setProperties(Hashtable<?, ?> props) {
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Hashtable<Object, Object> fprops;
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if (props == null) {
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fprops = new Hashtable<Object, Object>();
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} else {
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fprops = (Hashtable<Object, Object>)props.clone();
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}
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String propName = "Filters"; //$NON-NLS-1$
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String prop = "Null filter"; //$NON-NLS-1$
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Object o = fprops.get(propName);
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if (o != null) {
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if (o instanceof String) {
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prop = (String)o + "; " + prop; //$NON-NLS-1$
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} else {
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prop = o.toString() + "; " + prop; //$NON-NLS-1$
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}
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}
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fprops.put(propName, prop);
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consumer.setProperties(fprops);
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}
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/**
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* Returns a copy of this ImageFilter.
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*
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* @return a copy of this ImageFilter.
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*/
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@Override
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public Object clone() {
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try {
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return super.clone();
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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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* Responds to a request for a Top-Down-Left-Right ordered resend of the
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* pixel data from an ImageConsumer.
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*
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* @param ip
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* the ImageProducer that provides this instance of the filter.
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*/
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public void resendTopDownLeftRight(ImageProducer ip) {
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ip.requestTopDownLeftRightResend(this);
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}
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public void setColorModel(ColorModel model) {
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consumer.setColorModel(model);
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}
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public void setPixels(int x, int y, int w, int h, ColorModel model, int[] pixels, int off,
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int scansize) {
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consumer.setPixels(x, y, w, h, model, pixels, off, scansize);
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}
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public void setPixels(int x, int y, int w, int h, ColorModel model, byte[] pixels, int off,
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int scansize) {
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consumer.setPixels(x, y, w, h, model, pixels, off, scansize);
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}
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public void setDimensions(int width, int height) {
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consumer.setDimensions(width, height);
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}
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public void setHints(int hints) {
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consumer.setHints(hints);
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}
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public void imageComplete(int status) {
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consumer.imageComplete(status);
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}
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}
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