| /* |
| |
| 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 org.apache.batik.gvt.filter; |
| |
| import java.awt.AlphaComposite; |
| import java.awt.Graphics2D; |
| import java.awt.Rectangle; |
| import java.awt.RenderingHints; |
| import java.awt.geom.AffineTransform; |
| import java.awt.geom.Rectangle2D; |
| import java.awt.image.BufferedImage; |
| import java.awt.image.ColorModel; |
| import java.awt.image.SampleModel; |
| import java.awt.image.WritableRaster; |
| |
| import org.apache.batik.ext.awt.image.GraphicsUtil; |
| import org.apache.batik.ext.awt.image.rendered.AbstractRed; |
| import org.apache.batik.ext.awt.image.rendered.AbstractTiledRed; |
| import org.apache.batik.ext.awt.image.rendered.CachableRed; |
| import org.apache.batik.gvt.GraphicsNode; |
| import org.apache.batik.util.Platform; |
| |
| /** |
| * This implementation of RenderableImage will render its input |
| * GraphicsNode on demand for tiles. |
| * |
| * @author <a href="mailto:vincent.hardy@eng.sun.com">Vincent Hardy</a> |
| * @version $Id$ |
| */ |
| public class GraphicsNodeRed8Bit extends AbstractRed { |
| |
| /** |
| * GraphicsNode this image can render |
| */ |
| private GraphicsNode node; |
| |
| private AffineTransform node2dev; |
| |
| private RenderingHints hints; |
| |
| private boolean usePrimitivePaint; |
| |
| public GraphicsNodeRed8Bit(GraphicsNode node, |
| AffineTransform node2dev, |
| boolean usePrimitivePaint, |
| RenderingHints hints) { |
| super(); // We _must_ call init... |
| |
| this.node = node; |
| this.node2dev = node2dev; |
| this.hints = hints; |
| this.usePrimitivePaint = usePrimitivePaint; |
| |
| // Calculate my bounds by applying the affine transform to |
| // my input data.. |
| |
| AffineTransform at = node2dev; |
| Rectangle2D bounds2D = node.getPrimitiveBounds(); |
| if (bounds2D == null) bounds2D = new Rectangle2D.Float(0,0,1,1); |
| if (!usePrimitivePaint) { |
| // When not using Primitive paint we return our bounds in |
| // the nodes parent's user space. This makes sense since |
| // this is the space that we will draw our selves into |
| // (since paint unlike primitivePaint incorporates the |
| // transform from our user space to our parents user |
| // space). |
| AffineTransform nodeAt = node.getTransform(); |
| if (nodeAt != null) { |
| at = (AffineTransform)at.clone(); |
| at.concatenate(nodeAt); |
| } |
| } |
| Rectangle bounds = at.createTransformedShape(bounds2D).getBounds(); |
| // System.out.println("Bounds: " + bounds); |
| |
| ColorModel cm = createColorModel(); |
| |
| int defSz = AbstractTiledRed.getDefaultTileSize(); |
| |
| // Make tile(0,0) fall on the closest intersection of defaultSz. |
| int tgX = defSz*(int)Math.floor(bounds.x/defSz); |
| int tgY = defSz*(int)Math.floor(bounds.y/defSz); |
| |
| int tw = (bounds.x+bounds.width)-tgX; |
| if (tw > defSz) tw = defSz; |
| int th = (bounds.y+bounds.height)-tgY; |
| if (th > defSz) th = defSz; |
| if ((tw <= 0) || (th <= 0)) { |
| tw = 1; |
| th = 1; |
| } |
| |
| // fix my sample model so it makes sense given my size. |
| SampleModel sm = cm.createCompatibleSampleModel(tw, th); |
| |
| // Finish initializing our base class... |
| init((CachableRed)null, bounds, cm, sm, tgX, tgY, null); |
| } |
| |
| public WritableRaster copyData(WritableRaster wr) { |
| genRect(wr); |
| return wr; |
| } |
| |
| public void genRect(WritableRaster wr) { |
| // System.out.println(" Rect: " + wr.getBounds()); |
| BufferedImage offScreen |
| = new BufferedImage(cm, |
| wr.createWritableTranslatedChild(0,0), |
| cm.isAlphaPremultiplied(), |
| null); |
| |
| Graphics2D g = GraphicsUtil.createGraphics(offScreen, hints); |
| g.setComposite(AlphaComposite.Clear); |
| g.fillRect(0, 0, wr.getWidth(), wr.getHeight()); |
| g.setComposite(AlphaComposite.SrcOver); |
| g.translate(-wr.getMinX(), -wr.getMinY()); |
| |
| // Set transform |
| g.transform(node2dev); |
| |
| |
| // Invoke primitive paint. |
| if (usePrimitivePaint) { |
| node.primitivePaint(g); |
| } |
| else { |
| node.paint (g); |
| } |
| |
| g.dispose(); |
| } |
| |
| public ColorModel createColorModel() { |
| if (Platform.isOSX) |
| return GraphicsUtil.sRGB_Pre; |
| return GraphicsUtil.sRGB_Unpre; |
| } |
| } |