/**************************************************************************
* Copyright (c) 2001, 2002, 2003 by Punch Telematix. All rights reserved. *
* *
* Redistribution and use in source and binary forms, with or without *
* modification, are permitted provided that the following conditions *
* are met: *
* 1. Redistributions of source code must retain the above copyright *
* notice, this list of conditions and the following disclaimer. *
* 2. Redistributions in binary form must reproduce the above copyright *
* notice, this list of conditions and the following disclaimer in the *
* documentation and/or other materials provided with the distribution. *
* 3. Neither the name of Punch Telematix nor the names of *
* other contributors may be used to endorse or promote products *
* derived from this software without specific prior written permission.*
* *
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED *
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF *
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. *
* IN NO EVENT SHALL PUNCH TELEMATIX OR OTHER CONTRIBUTORS BE LIABLE *
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR *
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF *
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR *
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, *
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN *
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
**************************************************************************/
package java.awt;
import java.awt.image.*;
public abstract class Image {
public static final int SCALE_DEFAULT = 1;
public static final int SCALE_FAST = 2;
public static final int SCALE_SMOOTH = 4;
public static final int SCALE_REPLICATE = 8;
public static final int SCALE_AREA_AVERAGING = 16;
/**
* @status implemented
* @remark compliant with specifications
*/
public static final Object UndefinedProperty = new Object();
/**
* @status not implemented
* @remark not implemented
*/
public abstract void flush();
/**
* @status implemented
* @remark not compliant with specification; instead of throwing a 'ClassCastException' a null pointer
* is returned if the image is not an off-screen image.
*/
public abstract Graphics getGraphics();
/**
* @status implemented
* @remark compliant with specifications
*/
public abstract int getHeight(ImageObserver observer);
/**
* @status implemented
* @remark compliant with specifications
*/
public abstract ImageProducer getSource();
/**
* @status implemented
* @remark specifications are obscure...
*/
public abstract Object getProperty(String name, ImageObserver observer);
/**
* @status implemented
* @remark compliant with specifications
*/
public Image getScaledInstance(int w, int h, int hints) {
if(w < 0 && h >= 0) w = (getWidth(null) * h) / getHeight(null);
else if(h < 0 && w >= 0) h = (getHeight(null) * w) / getWidth(null);
else if(w < 0 && h < 0) {
w = getWidth(null);
h = getHeight(null);
}
// return Toolkit.getDefaultToolkit().createImage(new FilteredImageSource(this.getSource(), new ReplicateScaleFilter(w, h)));
Image img = new Canvas().createImage(w, h);
Graphics g = img.getGraphics();
g.drawImage(this, 0, 0, w, h, null);
return img;
}
/**
* @status implemented
* @remark compliant with the specifications
*/
public abstract int getWidth(ImageObserver observer);
}