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.diagram.adapter;
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14 import java.awt.Shape;
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15 import java.awt.geom.Rectangle2D;
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16 import java.util.Collection;
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17 import java.util.EnumSet;
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18 import java.util.List;
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20 import org.simantics.g2d.element.ElementClass;
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21 import org.simantics.g2d.element.ElementUtils;
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22 import org.simantics.g2d.element.IElement;
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23 import org.simantics.g2d.element.SceneGraphNodeKey;
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24 import org.simantics.g2d.element.handler.SceneGraph;
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25 import org.simantics.g2d.image.Image;
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26 import org.simantics.scenegraph.Node;
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27 import org.simantics.scenegraph.g2d.G2DParentNode;
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28 import org.simantics.scenegraph.g2d.nodes.SingleElementNode;
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29 import org.simantics.utils.datastructures.hints.IHintContext.Key;
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32 * Element Composition -> Image
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34 * @author Toni Kalajainen <toni.kalajainen@vtt.fi>
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36 public class CompositeImage implements Image {
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38 Collection<IElement> elements;
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39 private Shape shape;
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40 private Rectangle2D bounds;
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41 //IHintContext parentHints;
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42 static EnumSet<Feature> feats = VOLATILE_VECTOR;
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44 public static final Key KEY_SG_NODE = new SceneGraphNodeKey(Node.class, "COMPOSITE_IMAGE_SG_NODE");
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46 public CompositeImage(Collection<IElement> elements)
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48 //this.nodeIdentifier = nodeIdentifier;
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49 this.elements = elements;
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50 // ITask task = ThreadLogger.getInstance().begin("getElementShapesOnDiagram");
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51 // getElementShapesOnDiagram is ridiculously slow with some input data..
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52 // With Balas it took almost 2sec to calculate one Area.add() for the last terminal element.
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53 //shape = ElementUtils.getElementShapesOnDiagram(elements);
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54 // shape = ElementUtils.getElementBoundsOnDiagram(elements);
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56 // bounds = shape.getBounds2D();
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60 public Rectangle2D getBounds() {
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61 if(bounds == null) {
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62 Shape shape = getShape();
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63 // Shape may be null.
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65 return new Rectangle2D.Double();
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66 bounds = shape.getBounds2D();
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72 public EnumSet<Feature> getFeatures() {
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76 private final Shape getShape() {
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78 shape = ElementUtils.getElementBoundsOnDiagram(elements);
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84 public Shape getOutline() {
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88 public Collection<IElement> getElements() {
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93 public void addImageListener(ImageListener listener) {
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97 public void removeImageListener(ImageListener listener) {
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100 // public void setParentHints(IHintContext hints) {
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101 // this.parentHints = hints;
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104 // Rendering is single-threaded, this is used while rendering.
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105 Rectangle2D tempBounds = new Rectangle2D.Double(0, 0, 0, 0);
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108 public Node init(G2DParentNode parent) {
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109 if (elements.size() < 2) {
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110 // Optimization for 0..1 element composites
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111 for (IElement e : elements) {
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112 ElementClass ec = e.getElementClass();
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113 G2DParentNode node = parent.getOrCreateNode("composite_image_"+this.hashCode(), G2DParentNode.class);
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114 List<SceneGraph> nodeHandlers = ec.getItemsByClass(SceneGraph.class);
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115 for (SceneGraph n : nodeHandlers) {
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116 // n.init(e, parent);
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119 return node; // Valid node must be returned because transform is set afterwards
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123 // For N element composites
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125 // Removed this grouping node as unnecessary, just use the given parent node
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126 G2DParentNode node = parent.getOrCreateNode("composite_image_"+this.hashCode(), G2DParentNode.class);
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128 // Rectangle2D bounds = tempBounds;
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131 for (IElement e : elements) {
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132 ElementClass ec = e.getElementClass();
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133 // InternalSize size = ec.getSingleItem(InternalSize.class);
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134 // size.getBounds(e, bounds);
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136 // Transform transform = e.getElementClass().getSingleItem(Transform.class);
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137 // AffineTransform at2 = transform.getTransform(e);
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138 // if (at2 == null)
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140 SingleElementNode holder = node.getOrCreateNode(ElementUtils.generateNodeId(e), SingleElementNode.class);
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141 //SingleElementNode holder = parent.getOrCreateNode(ElementUtils.generateNodeId(e), SingleElementNode.class);
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142 holder.setZIndex(++zIndex);
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144 List<SceneGraph> nodeHandlers = ec.getItemsByClass(SceneGraph.class);
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145 for(SceneGraph n : nodeHandlers) {
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150 return node; // Valid node must be returned because transform is set afterwards
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153 // public static class TypeProxyElement extends ProxyElement {
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154 // IHintContext instanceHints;
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155 // public TypeProxyElement(IElement orig, IHintContext instanceHints) {
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157 // this.instanceHints = instanceHints;
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160 // public <E> E getHint(Key key) {
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161 // // TODO: need some mechanism to tell whether it is allowed to look for this key in the instance hints or not
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162 // // This version is broken because some hints MUST come from the original element.
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164 // if (instanceHints != null)
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165 // e = instanceHints.getHint(key);
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167 // e = orig.getHint(key);
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171 // public Map<Key, Object> getHints() {
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172 // throw new UnsupportedOperationException();
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175 // public <E extends Key> Map<E, Object> getHintsOfClass(Class<E> clazz) {
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176 // throw new UnsupportedOperationException();
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179 // public void setHint(Key key, Object value) {
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180 // if (instanceHints != null)
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181 // instanceHints.setHint(key, value);
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183 // orig.setHint(key, value);
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