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[simantics/platform.git] / bundles / org.simantics.event / src / org / simantics / event / view / handler / ToggleShowOnlyActiveEvents.java
1 /*******************************************************************************
2  * Copyright (c) 2007, 2011 Association for Decentralized Information Management
3  * in Industry THTH ry.
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
8  *
9  * Contributors:
10  *     VTT Technical Research Centre of Finland - initial API and implementation
11  *******************************************************************************/
12 package org.simantics.event.view.handler;
13
14 import org.simantics.Simantics;
15 import org.simantics.db.ReadGraph;
16 import org.simantics.db.Resource;
17 import org.simantics.db.WriteGraph;
18 import org.simantics.db.exception.DatabaseException;
19 import org.simantics.event.view.preference.EventPrefs;
20
21 /**
22  * @author Tuukka Lehtonen
23  */
24 public class ToggleShowOnlyActiveEvents extends PreferenceHandler {
25
26     @Override
27     protected boolean process(WriteGraph graph) throws DatabaseException {
28         Resource project = Simantics.getProjectResource();
29         if (project != null) {
30             boolean show = EventPrefs.showOnlyActiveEvents(graph, project);
31             EventPrefs.setShowOnlyActiveEvents(graph, project, !show);
32         }
33         return false;
34     }
35
36     @Override
37     protected boolean isChecked(ReadGraph graph) throws DatabaseException {
38         return EventPrefs.showOnlyActiveEvents(graph, Simantics.getProjectResource());
39     }
40
41 }