1 /*******************************************************************************
2 * Copyright (c) 2007, 2012 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.browsing.ui.swt;
14 import java.util.List;
16 import org.eclipse.swt.SWT;
17 import org.eclipse.swt.events.ModifyListener;
18 import org.eclipse.swt.layout.GridData;
19 import org.eclipse.swt.widgets.Composite;
20 import org.eclipse.swt.widgets.Control;
21 import org.eclipse.ui.IWorkbenchSite;
22 import org.simantics.Simantics;
23 import org.simantics.browsing.ui.swt.stubs.BrowsingResource;
24 import org.simantics.browsing.ui.swt.widgets.Combo;
25 import org.simantics.browsing.ui.swt.widgets.impl.ReadFactory;
26 import org.simantics.browsing.ui.swt.widgets.impl.WidgetSupport;
27 import org.simantics.databoard.Bindings;
28 import org.simantics.db.ReadGraph;
29 import org.simantics.db.Resource;
30 import org.simantics.db.exception.DatabaseException;
31 import org.simantics.db.management.ISessionContext;
32 import org.simantics.db.request.Read;
33 import org.simantics.utils.datastructures.Pair;
36 * @author Antti Villberg
38 public class ModelledCombo implements ModelledControl {
40 final private Resource configuration;
42 public ModelledCombo(Resource configuration) {
43 this.configuration = configuration;
47 public Control create(Composite parent, IWorkbenchSite site, ISessionContext context, WidgetSupport support) throws DatabaseException {
49 Combo combo = new Combo(parent, support, SWT.READ_ONLY);
51 GridData gridData = Simantics.getSession().syncRequest(new Read<GridData>() {
54 public GridData perform(ReadGraph graph) throws DatabaseException {
55 BrowsingResource br = BrowsingResource.getInstance(graph);
56 GridData data = new GridData(SWT.FILL, SWT.FILL, true, false);
57 Integer span = graph.getPossibleRelatedValue(configuration, br.Control_HorizontalSpan, Bindings.INTEGER);
58 if(span != null) data.horizontalSpan = span;
59 Boolean grabExcessHorizontalSpace = graph.getPossibleRelatedValue(configuration, br.Control_HorizontalGrab, Bindings.BOOLEAN);
60 if(grabExcessHorizontalSpace != null) data.grabExcessHorizontalSpace = grabExcessHorizontalSpace;
66 combo.setLayoutData(gridData);
68 ReadFactory<?, List<Pair<String, Object>>> available = Simantics.getSession().syncRequest(new Read<ReadFactory<?, List<Pair<String, Object>>>>() {
70 @SuppressWarnings("unchecked")
72 public ReadFactory<?, List<Pair<String, Object>>> perform(ReadGraph graph) throws DatabaseException {
73 BrowsingResource br = BrowsingResource.getInstance(graph);
74 Resource factory = graph.getPossibleObject(configuration, br.Combo_AvailableItems);
75 return graph.adapt(factory, ReadFactory.class);
80 //System.err.println("ModelledCombo: items = " + available);
82 combo.setItemFactory2(available);
84 ReadFactory<?, String> selected = Simantics.getSession().syncRequest(new Read<ReadFactory<?, String>>() {
86 @SuppressWarnings("unchecked")
88 public ReadFactory<?, String> perform(ReadGraph graph) throws DatabaseException {
89 BrowsingResource br = BrowsingResource.getInstance(graph);
90 Resource factory = graph.getPossibleObject(configuration, br.Combo_SelectedItem);
91 return graph.adapt(factory, ReadFactory.class);
96 combo.setSelectionFactory(selected);
98 ModifyListener modifier = Simantics.getSession().syncRequest(new Read<ModifyListener>() {
101 public ModifyListener perform(ReadGraph graph) throws DatabaseException {
102 BrowsingResource br = BrowsingResource.getInstance(graph);
103 Resource factory = graph.getPossibleObject(configuration, br.Combo_Modifier);
104 return graph.adapt(factory, ModifyListener.class);
109 combo.addModifyListener(modifier);
111 return combo.getWidget();