/******************************************************************************* * Copyright (c) 2007, 2010 Association for Decentralized Information Management * in Industry THTH ry. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * VTT Technical Research Centre of Finland - initial API and implementation *******************************************************************************/ package org.simantics.diagram.synchronization.graph.layer; import org.simantics.db.Resource; import org.simantics.db.WriteGraph; import org.simantics.db.exception.DatabaseException; import org.simantics.db.exception.ManyObjectsForFunctionalRelationException; import org.simantics.db.exception.ServiceException; import org.simantics.diagram.stubs.DiagramResource; import org.simantics.layer0.Layer0; /** * Utilities for manipulating diagram layers in the graph. * * @author Tuukka Lehtonen */ public final class GraphLayerUtil { WriteGraph graph; Layer0 l0; DiagramResource dia; public GraphLayerUtil(WriteGraph graph) { this.graph = graph; this.l0 = Layer0.getInstance(graph); this.dia = DiagramResource.getInstance(graph); } public GraphLayer createLayer(String layerName, boolean active) throws DatabaseException { Resource layer = graph.newResource(); graph.claim(layer, l0.InstanceOf, null, dia.Layer); // Assign tagging relations Resource visibleTag = newTag(dia.IsVisible); Resource focusableTag = newTag(dia.IsFocusable); graph.claim(layer, dia.HasVisibleTag, visibleTag); graph.claim(layer, dia.HasFocusableTag, focusableTag); // Assign shared name property for all, the layer and the tags Resource name = graph.newResource(); graph.claim(name, l0.InstanceOf, null, l0.String); graph.claimValue(name, layerName); graph.claim(layer, l0.HasName, name); graph.claim(visibleTag, l0.HasName, name); graph.claim(focusableTag, l0.HasName, name); setLayerActive(layer, active); return new GraphLayer(layerName, layer, visibleTag, focusableTag); } public Resource newTag(Resource baseTag) throws DatabaseException { Resource tag = graph.newResource(); graph.claim(tag, l0.SubrelationOf, baseTag); graph.claim(tag, l0.InverseOf, tag); return tag; } public void setLayerActive(Resource layer, boolean active) throws ManyObjectsForFunctionalRelationException, ServiceException { graph.claimLiteral(layer, dia.IsActive, Boolean.valueOf(active)); } }