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8f5c92a0a3
From-SVN: r56148
158 lines
4.6 KiB
Java
158 lines
4.6 KiB
Java
/* RenderableImageOp.java --
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Copyright (C) 2002 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package java.awt.image.renderable;
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import java.awt.RenderingHints;
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import java.awt.geom.AffineTransform;
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import java.awt.image.RenderedImage;
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import java.util.Vector;
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public class RenderableImageOp implements RenderableImage
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{
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private final ContextualRenderedImageFactory crif;
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private ParameterBlock block;
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public RenderableImageOp(ContextualRenderedImageFactory crif,
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ParameterBlock block)
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{
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this.crif = crif;
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this.block = (ParameterBlock) block.clone();
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}
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public Vector getSources()
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{
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if (block.sources == null)
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return null;
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int size = block.sources.size();
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Vector v = new Vector();
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for (int i = 0; i < size; i++)
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{
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Object o = block.sources.get(i);
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if (o instanceof RenderableImage)
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v.add(o);
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}
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return v;
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}
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public Object getProperty(String name)
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{
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return crif.getProperty(block, name);
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}
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public String[] getPropertyNames()
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{
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return crif.getPropertyNames();
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}
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public boolean isDynamic()
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{
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return crif.isDynamic();
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}
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public float getWidth()
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{
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return (float) crif.getBounds2D(block).getWidth();
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}
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public float getHeight()
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{
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return (float) crif.getBounds2D(block).getHeight();
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}
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public float getMinX()
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{
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return (float) crif.getBounds2D(block).getX();
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}
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public float getMinY()
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{
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return (float) crif.getBounds2D(block).getY();
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}
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public ParameterBlock setParameterBlock(ParameterBlock block)
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{
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ParameterBlock result = this.block;
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this.block = (ParameterBlock) block.clone();
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return result;
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}
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public ParameterBlock getParameterBlock()
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{
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return block;
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}
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public RenderedImage createScaledRendering(int w, int h,
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RenderingHints hints)
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{
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if (w == 0)
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if (h == 0)
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throw new IllegalArgumentException();
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else
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w = Math.round(h * getWidth() / getHeight());
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if (h == 0)
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h = Math.round(w * getHeight() / getWidth());
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AffineTransform xform = AffineTransform.getScaleInstance(w * getWidth(),
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h * getHeight());
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return createRendering(new RenderContext(xform, hints));
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}
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public RenderedImage createDefaultRendering()
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{
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return createRendering(new RenderContext(new AffineTransform()));
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}
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public RenderedImage createRendering(RenderContext context)
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{
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ParameterBlock copy = (ParameterBlock) block.clone();
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int i = block.sources.size();
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while (--i >= 0)
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{
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Object o = block.sources.get(i);
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if (o instanceof RenderableImage)
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{
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RenderableImage ri = (RenderableImage) o;
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RenderContext rc = crif.mapRenderContext(i, context, block, ri);
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copy.sources.set(i, ri.createRendering(rc));
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}
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}
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// Now copy.sources should be only RenderedImages.
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return crif.create(context, copy);
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}
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} // class RenderableImageOp
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