+++ /dev/null
-/* ImageFilter.java -- Java class for filtering images
- Copyright (C) 1999 Free Software Foundation, Inc.
-
-This file is part of GNU Classpath.
-
-GNU Classpath is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU Classpath is distributed in the hope that it will be useful, but
-WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU Classpath; see the file COPYING. If not, write to the
-Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-02111-1307 USA.
-
-Linking this library statically or dynamically with other modules is
-making a combined work based on this library. Thus, the terms and
-conditions of the GNU General Public License cover the whole
-combination.
-
-As a special exception, the copyright holders of this library give you
-permission to link this library with independent modules to produce an
-executable, regardless of the license terms of these independent
-modules, and to copy and distribute the resulting executable under
-terms of your choice, provided that you also meet, for each linked
-independent module, the terms and conditions of the license of that
-module. An independent module is a module which is not derived from
-or based on this library. If you modify this library, you may extend
-this exception to your version of the library, but you are not
-obligated to do so. If you do not wish to do so, delete this
-exception statement from your version. */
-
-
-package java.awt.image;
-
-import java.util.Hashtable;
-
-/**
- * The <code>ImageFilter</code> class is a base class which can be
- * extended to provide different types of filters for an image. By
- * default this class does nothing to an image passing through it.
- *
- * @author C. Brian Jones (cbj@gnu.org)
- */
-public class ImageFilter implements ImageConsumer, Cloneable
-{
- /**
- * The consumer this filter is filtering an image data stream for.
- * It is initialized in the method <code>getFilterInstance</code>.
- */
- protected ImageConsumer consumer = null;
-
- /**
- * The <code>ImageConsumer</code> can use this method to request
- * the pixels be delivered in top-down, left-right order.
- * <br>
- * The filter can respond in three different ways.
- * <ul>
- * <li>The default behavior is to forward the request to the
- * <code>ImageProducer</code>
- * using the method <code>requestTopDownLeftRightResend</code>
- * and using the filter as the consumer.</li>
- * <li>The filter has the pixels and can retransmit them in the
- * top-down, left-right order.</li>
- * <li>The filter can do nothing when this method is called.</li>
- * </ul>
- */
- public void resendTopDownLeftRight(ImageProducer ip)
- {
- ip.requestTopDownLeftRightResend(this);
- }
-
- /**
- * By default, returns a shallow copy of the object created by
- * <code>Object.clone()</code>
- *
- * @see java.lang.Object#clone ()
- */
- public Object clone() throws CloneNotSupportedException
- {
- return (super.clone());
- }
-
- /**
- * This is the only method which can set the
- * <code>ImageConsumer</code> for this filter. By default a clone
- * of this filter with the appropriate consumer set is returned.
- *
- * @see #clone ()
- */
- public ImageFilter getFilterInstance(ImageConsumer ic)
- {
- if ( ic == null )
- throw new IllegalArgumentException("null argument for ImageFilter.getFilterInstance(ImageConsumer)");
-
- consumer = ic;
- try {
- ImageFilter f = (ImageFilter)clone();
- consumer = null;
- return f;
- } catch ( CloneNotSupportedException cnse ) {
- cnse.printStackTrace();
- consumer = null;
- return null;
- }
- }
-
- /**
- * An <code>ImageProducer</code> indicates the size of the image
- * being produced using this method. A filter can override this
- * method to intercept these calls from the producer in order to
- * change either the width or the height before in turn calling
- * the consumer's <code>setDimensions</code> method.
- *
- * @param width the width of the image
- * @param height the height of the image
- */
- public void setDimensions(int width, int height)
- {
- consumer.setDimensions(width, height);
- }
-
- /**
- * An <code>ImageProducer</code> can set a list of properties
- * associated with this image by using this method.
- *
- * @param props the list of properties associated with this image
- */
- public void setProperties(Hashtable props)
- {
- props.put("filters", "ImageFilter");
- consumer.setProperties(props);
- }
-
- /**
- * Override this method to process calls to this method from the
- * <code>ImageProducer</code>. By default the <code>setColorModel</code>
- * method of the consumer is called with the specified <code>model</code>.
- *
- * @param model the color model to be used most often by setPixels
- * @see ColorModel */
- public void setColorModel(ColorModel model)
- {
- consumer.setColorModel(model);
- }
-
- /**
- * The <code>ImageProducer</code> should call this method with a
- * bit mask of hints from any of <code>RANDOMPIXELORDER</code>,
- * <code>TOPDOWNLEFTRIGHT</code>, <code>COMPLETESCANLINES</code>,
- * <code>SINGLEPASS</code>, <code>SINGLEFRAME</code> from the
- * <code>ImageConsumer</code> interface.
- *
- * @param flags a bit mask of hints
- * @see ImageConsumer
- */
- public void setHints(int flags)
- {
- consumer.setHints(flags);
- }
-
- /**
- * This function delivers a rectangle of pixels where any
- * pixel(m,n) is stored in the array as a <code>byte</code> at
- * index (n * scansize + m + offset).
- *
- * @param x the x coordinate of the rectangle
- * @param y the y coordinate of the rectangle
- * @param w the width of the rectangle
- * @param h the height of the rectangle
- * @param model the <code>ColorModel</code> used to translate the pixels
- * @param pixels the array of pixel values
- * @param offset the index of the first pixels in the <code>pixels</code> array
- * @param scansize the width to use in extracting pixels from the <code>pixels</code> array
- */
- public void setPixels(int x, int y, int w, int h,
- ColorModel model, byte[] pixels, int offset, int scansize)
- {
- consumer.setPixels(x, y, w, h, model, pixels, offset, scansize);
- }
-
- /**
- * This function delivers a rectangle of pixels where any
- * pixel(m,n) is stored in the array as an <code>int</code> at
- * index (n * scansize + m + offset).
- *
- * @param x the x coordinate of the rectangle
- * @param y the y coordinate of the rectangle
- * @param w the width of the rectangle
- * @param h the height of the rectangle
- * @param model the <code>ColorModel</code> used to translate the pixels
- * @param pixels the array of pixel values
- * @param offset the index of the first pixels in the <code>pixels</code> array
- * @param scansize the width to use in extracting pixels from the <code>pixels</code> array
- */
- public void setPixels(int x, int y, int w, int h,
- ColorModel model, int[] pixels, int offset, int scansize)
- {
- consumer.setPixels(x, y, w, h, model, pixels, offset, scansize);
- }
-
- /**
- * The <code>ImageProducer</code> calls this method to indicate a
- * single frame or the entire image is complete. The method is
- * also used to indicate an error in loading or producing the
- * image.
- */
- public void imageComplete(int status)
- {
- consumer.imageComplete(status);
- }
-}
-
projects / msp430-gcc.git / blobdiff