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.diagram.adapter;
14 import java.awt.AlphaComposite;
15 import java.awt.Color;
16 import java.util.HashMap;
19 import org.simantics.databoard.Bindings;
20 import org.simantics.db.ReadGraph;
21 import org.simantics.db.RequestProcessor;
22 import org.simantics.db.Resource;
23 import org.simantics.db.exception.DatabaseException;
24 import org.simantics.diagram.profile.ProfileKeys;
25 import org.simantics.diagram.stubs.DiagramResource;
26 import org.simantics.g2d.canvas.ICanvasContext;
27 import org.simantics.layer0.Layer0;
28 import org.simantics.scenegraph.INode;
29 import org.simantics.scenegraph.profile.DataNodeMap;
30 import org.simantics.scenegraph.profile.EvaluationContext;
31 import org.simantics.scenegraph.profile.Group;
32 import org.simantics.scenegraph.profile.Style;
33 import org.simantics.scenegraph.profile.common.ObserverGroupListener;
34 import org.simantics.scenegraph.profile.common.ProfileVariables;
36 public class ConstantStyle implements Style {
39 final Map<String, Object> values = new HashMap<String, Object>();
40 ObserverGroupListener listener = null;
42 public ConstantStyle(ReadGraph graph, Resource style) throws DatabaseException {
43 Layer0 L0 = Layer0.getInstance(graph);
44 DiagramResource DIA = DiagramResource.getInstance(graph);
45 this.name = graph.getPossibleRelatedValue(style, L0.HasName, Bindings.STRING);
46 String[] values = graph.getPossibleRelatedValue(style, DIA.HasValues, Bindings.getBindingUnchecked(String[].class));
47 for(int i=0;i<values.length;i+=2) {
48 String key = values[i];
49 Object value = haxx(key, values[i+1]);
50 this.values.put(key, value);
54 private Object haxx(String key, Object value) {
55 if("alpha".equals(key)) {
56 return AlphaComposite.getInstance(AlphaComposite. SRC_OVER, Float.parseFloat((String)value));
57 } else if("color".equals(key)) {
58 return new Color(Integer.parseInt(value.toString(), 16));
65 public void deactivate(Resource diagram, Resource entry, Group group,
66 EvaluationContext observer) {
67 if (listener != null && !listener.isDisposed()) {
75 public void activate(RequestProcessor backend, Resource diagram, Resource entry, Group group, final EvaluationContext observer) {
77 if (listener != null && !listener.isDisposed())
80 listener = new ObserverGroupListener(this, group, observer);
82 group.trackItems(backend, diagram, listener);
87 public void apply(Resource entry, Group group, final EvaluationContext evaluationContext) {
89 // throw new UnsupportedOperationException();
91 // IDiagram diagram = evaluationContext.getConstant(ProfileKeys.DIAGRAM);
92 ICanvasContext context = evaluationContext.getConstant(ProfileKeys.CANVAS);
94 assert context.getThreadAccess().currentThreadAccess();
96 if(listener == null) {
97 System.out.println("ConstantStyle " + this + " was not active in apply!");
101 final DataNodeMap map = evaluationContext.getConstant(ProfileKeys.NODE_MAP);
103 // DataElementMap map = diagram.getDiagramClass().getSingleItem(DataElementMap.class);
105 for(Map.Entry<String, Object> value : values.entrySet()) {
107 for(Object item : listener.getItems()) {
109 final INode node = map.getNode(item);
111 // final IElement element = map.getElement(diagram, item);
113 //observer.exception(new NullPointerException("ConstantStyle.apply: no element for " + item));
114 evaluationContext.update();
118 ProfileVariables.claimNodeProperty(node, value.getKey(), value.getValue(), evaluationContext);
120 //// System.out.println("apply[" + element + "]: " + value.getKey() + " => " + value.getValue());
121 // Variables.set(node, value.getKey(), value.getValue(), evaluationContext);
123 // PropertySetter setter = element.getElementClass().getAtMostOneItemOfClass(PropertySetter.class);
124 // if(setter != null)
125 // setter.syncPropertiesToNode(element);
133 public String toString() {