X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.diagram%2Fsrc%2Forg%2Fsimantics%2Fdiagram%2Fsynchronization%2Fgraph%2Flayer%2FGraphLayerUtil.java;fp=bundles%2Forg.simantics.diagram%2Fsrc%2Forg%2Fsimantics%2Fdiagram%2Fsynchronization%2Fgraph%2Flayer%2FGraphLayerUtil.java;h=e3cf13527469ff7092f128d95f184dca5bd02122;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.diagram/src/org/simantics/diagram/synchronization/graph/layer/GraphLayerUtil.java b/bundles/org.simantics.diagram/src/org/simantics/diagram/synchronization/graph/layer/GraphLayerUtil.java
new file mode 100644
index 000000000..e3cf13527
--- /dev/null
+++ b/bundles/org.simantics.diagram/src/org/simantics/diagram/synchronization/graph/layer/GraphLayerUtil.java
@@ -0,0 +1,74 @@
+/*******************************************************************************
+ * 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));
+    }
+
+}