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.modeling.ui.diagram.style;
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14 import java.awt.Color;
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15 import java.awt.Font;
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16 import java.awt.geom.AffineTransform;
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18 import org.simantics.databoard.Bindings;
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19 import org.simantics.datatypes.literal.Vec2d;
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20 import org.simantics.db.ReadGraph;
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21 import org.simantics.db.Resource;
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22 import org.simantics.db.exception.DatabaseException;
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23 import org.simantics.db.layer0.variable.Variable;
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24 import org.simantics.diagram.elements.TextNode;
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25 import org.simantics.diagram.profile.StyleBase;
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26 import org.simantics.diagram.synchronization.graph.DiagramGraphUtil;
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27 import org.simantics.g2d.utils.Alignment;
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28 import org.simantics.layer0.Layer0;
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29 import org.simantics.modeling.ModelingResources;
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30 import org.simantics.scenegraph.INode;
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31 import org.simantics.scenegraph.g2d.IG2DNode;
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32 import org.simantics.scenegraph.g2d.nodes.SingleElementNode;
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33 import org.simantics.scenegraph.profile.EvaluationContext;
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34 import org.simantics.scenegraph.profile.common.ProfileVariables;
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35 import org.simantics.scenegraph.utils.NodeUtil;
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36 import org.simantics.utils.datastructures.map.Tuple;
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40 * @author Tuukka Lehtonen
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42 public class SymbolTerminalNameStyle extends StyleBase<SymbolNameResult> {
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44 static final Font FONT = Font.decode("Arial 6");
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46 private static final String NODE_NAME = "terminalName";
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49 * Must override the StyleBase implementation because terminals do not
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50 * depend on runtime variable. They need to be shown regardless of variable
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54 public SymbolNameResult calculateStyle(ReadGraph graph, Resource runtimeDiagram, Resource entry, Resource groupItem) throws DatabaseException {
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55 return calculateStyle(graph, runtimeDiagram, entry, groupItem, null);
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59 public SymbolNameResult calculateStyle(ReadGraph graph, Resource runtimeDiagram, Resource entry, Resource element, Variable configuration) throws DatabaseException {
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61 AffineTransform transform = DiagramGraphUtil.getAffineTransform(graph, element);
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63 Layer0 L0 = Layer0.getInstance(graph);
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64 ModelingResources MOD = ModelingResources.getInstance(graph);
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66 Resource binds = DiagramGraphUtil.getPossibleConnectionPointOfTerminal(graph, element);
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70 Resource conn = graph.getPossibleObject(binds, MOD.DiagramConnectionRelationToConnectionRelation);
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71 String name = graph.getPossibleRelatedValue(conn, L0.HasName, Bindings.STRING);
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72 if (conn == null || name == null)
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75 return new SymbolNameResult(name, transform);
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79 private AffineTransform translateAndScaleIfNeeded(AffineTransform tr, Vec2d offset, double scale) {
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80 if(!offset.isZero() || scale != 1.0) {
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81 tr = new AffineTransform(tr);
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82 tr.translate(offset.x, offset.y);
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83 tr.scale(scale, scale);
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88 private AffineTransform getSymbolTransform(INode node, Vec2d offset, double size) {
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89 if(node instanceof SingleElementNode) {
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90 SingleElementNode s = (SingleElementNode)node;
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91 INode symbol = NodeUtil.findChildByPrefix(s, "composite_image");
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92 return translateAndScaleIfNeeded(symbol != null ? ((IG2DNode)symbol).getTransform() : new AffineTransform(), offset, size);
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98 public void applyStyleForNode(EvaluationContext observer, INode _node, SymbolNameResult result) {
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100 if (result == null) {
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101 ProfileVariables.denyChild(_node, "", NODE_NAME);
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105 TextNode node = ProfileVariables.claimChild(_node, "", NODE_NAME, TextNode.class, observer);
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107 node.setZIndex( Integer.MAX_VALUE );
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108 node.setTransform( getSymbolTransform(_node, new Vec2d(0, -1), 0.08) );
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109 node.setText(result.getName());
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110 node.setHorizontalAlignment((byte)Alignment.CENTER.ordinal());
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111 node.setBackgroundColor(Color.WHITE);
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112 node.setPadding(0.2, 0);
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117 protected void cleanupStyleForNode(INode node) {
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118 ProfileVariables.denyChild(node, "", NODE_NAME);
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124 * This is needed to keep the issue decoration up-to-date when its parent
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127 class SymbolNameResult extends Tuple {
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128 public SymbolNameResult(String name, AffineTransform transform) {
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129 super(name, transform);
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131 public String getName() {
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132 return (String) getField(0);
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