/*
* 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.
*/
package com.google.code.appengine.awt;
import org.apache.harmony.awt.internal.nls.Messages;
import com.google.code.appengine.awt.Paint;
import com.google.code.appengine.awt.PaintContext;
import com.google.code.appengine.awt.Rectangle;
import com.google.code.appengine.awt.RenderingHints;
import com.google.code.appengine.awt.TexturePaintContext;
import com.google.code.appengine.awt.geom.AffineTransform;
import com.google.code.appengine.awt.geom.Rectangle2D;
import com.google.code.appengine.awt.image.BufferedImage;
import com.google.code.appengine.awt.image.ColorModel;
import com.google.code.appengine.awt.image.DataBuffer;
import com.google.code.appengine.awt.image.DataBufferByte;
import com.google.code.appengine.awt.image.DataBufferInt;
import com.google.code.appengine.awt.image.DataBufferUShort;
public class TexturePaint implements Paint {
/**
* The BufferedImage object used as texture
*/
BufferedImage img;
/**
* The Rectangle2D bounds of texture piece to be painted
*/
Rectangle2D anchor;
public TexturePaint(BufferedImage img, Rectangle2D anchor) {
if (img == null) {
// awt.114=Image is null
throw new NullPointerException(Messages.getString("awt.114")); //$NON-NLS-1$
}
if (anchor == null) {
// awt.115=Anchor is null
throw new NullPointerException(Messages.getString("awt.115")); //$NON-NLS-1$
}
this.img = img;
this.anchor = anchor;
}
public BufferedImage getImage() {
return img;
}
public PaintContext createContext(ColorModel cm, Rectangle device, Rectangle2D user,
AffineTransform t, RenderingHints hints) {
Object value = hints.get(RenderingHints.KEY_INTERPOLATION);
boolean bilinear = (value != null)
&& (value != RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR);
int type = img.getType();
DataBuffer buf = img.getRaster().getDataBuffer();
if (buf instanceof DataBufferInt) {
if (type == BufferedImage.TYPE_INT_ARGB || type == BufferedImage.TYPE_INT_ARGB_PRE
|| type == BufferedImage.TYPE_INT_BGR || type == BufferedImage.TYPE_INT_RGB) {
if (bilinear) {
return new TexturePaintContext.IntBilinear(img, anchor, t);
}
return new TexturePaintContext.IntSimple(img, anchor, t);
}
} else if (buf instanceof DataBufferByte) {
if (type == BufferedImage.TYPE_BYTE_GRAY) {
if (bilinear) {
return new TexturePaintContext.ByteBilinear(img, anchor, t);
}
return new TexturePaintContext.ByteSimple(img, anchor, t);
}
} else if (buf instanceof DataBufferUShort) {
if (type == BufferedImage.TYPE_USHORT_GRAY) {
if (bilinear) {
return new TexturePaintContext.ShortBilinear(img, anchor, t);
}
return new TexturePaintContext.ShortSimple(img, anchor, t);
}
}
if (bilinear) {
if (type != BufferedImage.TYPE_BYTE_INDEXED) {
return new TexturePaintContext.CommonBilinear(img, anchor, t);
}
} else {
return new TexturePaintContext.CommonSimple(img, anchor, t);
}
return new TexturePaintContext(img, anchor, t);
}
public int getTransparency() {
return img.getColorModel().getTransparency();
}
public Rectangle2D getAnchorRect() {
return anchor;
}
}