1 /*******************************************************************************
2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
4 * All rights reserved. This program and the accompanying materials
5 * are made available under the terms of the Eclipse Public License v1.0
6 * which accompanies this distribution, and is available at
7 * http://www.eclipse.org/legal/epl-v10.html
10 * VTT Technical Research Centre of Finland - initial API and implementation
11 *******************************************************************************/
12 package org.simantics.g2d.image.impl;
14 import java.awt.geom.AffineTransform;
15 import java.util.EnumSet;
17 import org.simantics.g2d.image.Image;
18 import org.simantics.g2d.image.ImageUtils;
19 import org.simantics.scenegraph.Node;
20 import org.simantics.scenegraph.g2d.G2DParentNode;
23 * System-memory stored raster of an image.
24 * Suitable for vector based images.
26 * This implementation determines the required raster quality from the
27 * given graphics2D context. If the buffered raster is not good enough quality,
28 * the image will be re-rendered. If the buffer to be rendered is larger than
29 * maxDimension * maxDimension, original image will be used instead.
31 * Disposing buffer does not dipose the original image.
33 * @See {@link ImageUtils}
34 * @author Toni Kalajainen
36 public class BufferedImage extends ImageProxy implements Image {
38 public static final double MAX_DIMENSION = 800;
40 java.awt.image.BufferedImage raster;
41 double rasterResolution = 1.0;
43 EnumSet<Feature> caps;
45 public BufferedImage(Image source)
47 this(source, MAX_DIMENSION);
50 public BufferedImage(Image source, double maxDimension)
53 this.maxDimension = maxDimension;
54 boolean vector = source.getFeatures().contains(Feature.Vector);
55 boolean vola = source.getFeatures().contains(Feature.Volatile);
57 source.addImageListener(new ImageListener() {
59 public void onContentChangedNotification(Image image) {
62 this.caps = EnumSet.of(Feature.Volatile);
64 this.caps = EnumSet.noneOf(Feature.class);
68 private double requiredResolution(AffineTransform af)
70 double reso = Math.max(af.getScaleX(), af.getScaleY());
71 // Add some extra information for rotations & anti-aliasing
76 private synchronized void releaseRaster()
82 public synchronized Node init(G2DParentNode parent) {
84 // Graphics2D g = gc.getGraphics2D();
85 // // Quality rendering requested, do not render from cache
86 // if (g.getRenderingHint(RenderingHints.KEY_RENDERING) == RenderingHints.VALUE_RENDER_QUALITY)
91 // Rectangle2D bounds = getBounds();
93 // double requiredResolution = requiredResolution(g.getTransform());
94 // double wid = bounds.getWidth();
95 // double hei = bounds.getHeight();
96 // wid *= requiredResolution * 1.05;
97 // hei *= requiredResolution * 1.05;
99 // // too detailed, render with the original image
100 // if (wid*hei > maxDimension*maxDimension)
106 // if (raster!=null && requiredResolution>rasterResolution )
110 // if (raster==null) {
112 // rasterResolution = requiredResolution;
114 // raster = new java.awt.image.BufferedImage(
117 // java.awt.image.BufferedImage.TYPE_INT_ARGB);
118 // Graphics2D target = raster.createGraphics();
119 // target.setBackground(new Color(255,255,255,0));
120 // target.clearRect(0, 0, raster.getWidth(), raster.getHeight());
121 // target.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
122 // target.scale(rasterResolution, rasterResolution);
123 // target.translate(-bounds.getX(), -bounds.getY());
125 // QualityHints.HIGH_QUALITY_HINTS.setQuality(target);
126 // target.setRenderingHint( RenderingHintsKeyExt.KEY_BUFFERED_IMAGE, new WeakReference<java.awt.image.BufferedImage>(raster) );
128 // source.paint(new GraphicsContextImpl(new Rectangle2D.Double(0,0, raster.getWidth(), raster.getHeight()), null) );
132 // AffineTransform af = g.getTransform();
134 // g.translate(bounds.getX(), bounds.getY());
135 // g.scale(1/rasterResolution, 1/rasterResolution);
136 // g.drawImage(raster, 0, 0, null);
137 // g.setColor(Color.BLACK);
139 // g.setTransform(af);
144 public EnumSet<Feature> getFeatures() {