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.example;
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14 import java.awt.Color;
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15 import java.awt.geom.Rectangle2D;
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17 import org.simantics.g2d.canvas.ICanvasContext;
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18 import org.simantics.g2d.diagram.DiagramClass;
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19 import org.simantics.g2d.diagram.DiagramHints;
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20 import org.simantics.g2d.diagram.IDiagram;
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21 import org.simantics.g2d.diagram.impl.Diagram;
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22 import org.simantics.g2d.element.ElementClass;
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23 import org.simantics.g2d.element.ElementUtils;
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24 import org.simantics.g2d.element.IElement;
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25 import org.simantics.g2d.element.handler.Heartbeat;
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26 import org.simantics.g2d.element.handler.Text;
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27 import org.simantics.g2d.element.handler.impl.DefaultTransform;
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28 import org.simantics.g2d.element.handler.impl.FixedSize;
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29 import org.simantics.g2d.element.handler.impl.TextColorImpl;
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30 import org.simantics.g2d.element.handler.impl.TextPainter;
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31 import org.simantics.g2d.element.impl.Element;
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32 import org.simantics.g2d.elementclass.FilmClass;
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35 * Diagram with LOADING... text
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37 * @author Toni Kalajainen
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39 public class LoadingMessageDiagram {
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41 public static final ElementClass LOADING_CLASS =
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42 ElementClass.compile(
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43 TextColorImpl.WHITE,
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44 DefaultTransform.INSTANCE,
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45 FixedSize.of(30, 20),
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48 new LoadingAnimation()
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51 public static final IDiagram LOADING_DIAGRAM = createLoadingDiagram();
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54 * Create diagram where flashing "LOADING" text
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57 public static IDiagram createLoadingDiagram()
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59 String name = "Loading...";
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60 IDiagram d = Diagram.spawnNew(DiagramClass.DEFAULT);
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61 d.setHint(DiagramHints.KEY_TEXT, name);
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63 IElement film = Element.spawnNew(FilmClass.FILM_CLASS);
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64 ElementUtils.fitToRectangle(film, new Rectangle2D.Double(0, 4, 40, 30));
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66 ElementUtils.setFillColor(film, new Color(0.3f, 0.3f, 0.8f, 0.5f));
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68 IElement lbl = Element.spawnNew( LOADING_CLASS );
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70 ElementUtils.setPos(lbl, 5,7);
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71 ElementUtils.setText(lbl, "Loading");
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72 ElementUtils.setTextColor(lbl, Color.WHITE);
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79 private static class LoadingAnimation implements Heartbeat {
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81 private static final long serialVersionUID = 2721735864087380222L;
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84 public void heartbeat(IElement e, long time, long deltaTime, ICanvasContext ctx) {
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85 int dotCount = (int) ((time % 1000L) / 200L);
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87 for (int i=0; i<dotCount; i++)
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89 ElementUtils.setText(e, "Loading"+dots);
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91 ctx.getContentContext().setDirty();
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