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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @author Igor V. Stolyarov
* @version $Revision$
*/
package java.awt.image.renderable;
import java.awt.RenderingHints;
import java.awt.Shape;
import java.awt.geom.AffineTransform;
/**
* The Class RenderContext stores data on how an image is to be rendered: the
* affine transform, the area of interest, and the rendering hints.
*
* @since Android 1.0
*/
public class RenderContext implements Cloneable {
/**
* The affine transform.
*/
AffineTransform transform;
/**
* The area of interest.
*/
Shape aoi;
/**
* The rendering hints.
*/
RenderingHints hints;
/**
* Instantiates a new render context.
*
* @param usr2dev
* the affine transform.
* @param aoi
* the area of interest.
* @param hints
* the rendering hints.
*/
public RenderContext(AffineTransform usr2dev, Shape aoi, RenderingHints hints) {
this.transform = (AffineTransform)usr2dev.clone();
this.aoi = aoi;
this.hints = hints;
}
/**
* Instantiates a new render context with no specified hints.
*
* @param usr2dev
* the affine transform.
* @param aoi
* the area of interest.
*/
public RenderContext(AffineTransform usr2dev, Shape aoi) {
this(usr2dev, aoi, null);
}
/**
* Instantiates a new render context with no specified area of interest.
*
* @param usr2dev
* the affine transform.
* @param hints
* the rendering hints.
*/
public RenderContext(AffineTransform usr2dev, RenderingHints hints) {
this(usr2dev, null, hints);
}
/**
* Instantiates a new render context with no rendering hints or area of
* interest.
*
* @param usr2dev
* the affine transform.
*/
public RenderContext(AffineTransform usr2dev) {
this(usr2dev, null, null);
}
@Override
public Object clone() {
return new RenderContext(transform, aoi, hints);
}
/**
* Sets the affine transform for this render context.
*
* @param newTransform
* the new affine transform.
*/
public void setTransform(AffineTransform newTransform) {
transform = (AffineTransform)newTransform.clone();
}
/**
* Concatenates the current transform with the specified transform (so they
* are applied with the specified transform acting first) and sets the
* resulting transform as the affine transform of this rendering context.
*
* @param modTransform
* the new transform which modifies the current transform.
* @deprecated use
* {@link RenderContext#preConcatenateTransform(AffineTransform)}
* .
*/
@Deprecated
public void preConcetenateTransform(AffineTransform modTransform) {
preConcatenateTransform(modTransform);
}
/**
* Concatenates the current transform with the specified transform (so they
* are applied with the specified transform acting first) and sets the
* resulting transform as the affine transform of this rendering context.
*
* @param modTransform
* the new transform which modifies the current transform.
*/
public void preConcatenateTransform(AffineTransform modTransform) {
transform.preConcatenate(modTransform);
}
/**
* Concatenate the specified transform with the current transform.
*
* @param modTransform
* the new transform which modifies the current transform.
* @deprecated use
* {@link RenderContext#concatenateTransform(AffineTransform)}.
*/
@Deprecated
public void concetenateTransform(AffineTransform modTransform) {
concatenateTransform(modTransform);
}
/**
* Concatenate the specified transform with the current transform.
*
* @param modTransform
* the new transform which modifies the current transform.
*/
public void concatenateTransform(AffineTransform modTransform) {
transform.concatenate(modTransform);
}
/**
* Gets the transform.
*
* @return the transform.
*/
public AffineTransform getTransform() {
return (AffineTransform)transform.clone();
}
/**
* Sets the area of interest.
*
* @param newAoi
* the new area of interest.
*/
public void setAreaOfInterest(Shape newAoi) {
aoi = newAoi;
}
/**
* Gets the area of interest.
*
* @return the area of interest.
*/
public Shape getAreaOfInterest() {
return aoi;
}
/**
* Sets the rendering hints.
*
* @param hints
* the new rendering hints.
*/
public void setRenderingHints(RenderingHints hints) {
this.hints = hints;
}
/**
* Gets the rendering hints.
*
* @return the rendering hints.
*/
public RenderingHints getRenderingHints() {
return hints;
}
}
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