1 /*******************************************************************************
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2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
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3 * in Industry THTH ry.
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4 * All rights reserved. This program and the accompanying materials
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5 * are made available under the terms of the Eclipse Public License v1.0
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6 * which accompanies this distribution, and is available at
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7 * http://www.eclipse.org/legal/epl-v10.html
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10 * VTT Technical Research Centre of Finland - initial API and implementation
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11 *******************************************************************************/
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12 package org.simantics.g2d.image.impl;
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14 import java.awt.Color;
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15 import java.awt.Graphics2D;
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16 import java.awt.GraphicsConfiguration;
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17 import java.awt.RenderingHints;
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18 import java.awt.Shape;
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19 import java.awt.Transparency;
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20 import java.awt.geom.Rectangle2D;
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21 import java.awt.image.VolatileImage;
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23 import org.simantics.g2d.image.Image;
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26 * Video-ram cache suitable for rasterized PaintableSymbols.
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29 * @author Toni Kalajainen
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31 public class VRamBufferedImage extends ImageProxy {
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34 final GraphicsConfiguration gc;
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35 VolatileImage image;
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38 public VRamBufferedImage(Image original, GraphicsConfiguration gc) {
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42 Rectangle2D bounds = original.getBounds();
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43 wid = (int) Math.ceil( bounds.getWidth() );
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44 hei = (int) Math.ceil( bounds.getHeight() );
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47 synchronized VolatileImage restore()
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50 image = gc.createCompatibleVolatileImage(
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52 Transparency.TRANSLUCENT);
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54 int validateResult = image.validate(gc);
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55 if (validateResult == VolatileImage.IMAGE_INCOMPATIBLE)
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58 if (validateResult == VolatileImage.IMAGE_OK)
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61 if (validateResult == VolatileImage.IMAGE_RESTORED /*raster.contentsLost()*/) {
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62 Rectangle2D bounds = source.getBounds();
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63 outline = source.getOutline();
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64 Graphics2D target = image.createGraphics();
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65 target.setBackground(new Color(255,255,255,0));
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66 target.clearRect(0, 0, image.getWidth(), image.getHeight());
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67 target.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
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68 target.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
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69 target.setRenderingHint(RenderingHints.KEY_ALPHA_INTERPOLATION, RenderingHints.VALUE_ALPHA_INTERPOLATION_QUALITY);
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70 target.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
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71 target.translate(-bounds.getMinX(), -bounds.getMinY());
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72 source.init(null);//new GraphicsContextImpl(new Rectangle2D.Double(0,0, image.getWidth(), image.getHeight()), null) );
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80 public int hashCode() {
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81 return gc.hashCode() ^source.hashCode();
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85 public boolean equals(Object obj) {
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86 if (!(obj instanceof VRamBufferedImage)) return false;
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87 VRamBufferedImage o = (VRamBufferedImage) obj;
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88 return o.gc == gc && o.source.equals(source);
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91 public Image getSource() {
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95 public GraphicsConfiguration getGraphicsConfiguration() {
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