Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.diagram / src / org / simantics / diagram / synchronization / graph / layer / GraphLayerUtil.java

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 (file)
index 0000000..e3cf135
--- /dev/null
+++ b/bundles/org.simantics.diagram/src/org/simantics/diagram/synchronization/graph/layer/GraphLayerUtil.java
@@ -0,0 +1,74 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ *     VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.diagram.synchronization.graph.layer;\r
+\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.WriteGraph;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.exception.ManyObjectsForFunctionalRelationException;\r
+import org.simantics.db.exception.ServiceException;\r
+import org.simantics.diagram.stubs.DiagramResource;\r
+import org.simantics.layer0.Layer0;\r
+\r
+/**\r
+ * Utilities for manipulating diagram layers in the graph.\r
+ * \r
+ * @author Tuukka Lehtonen\r
+ */\r
+public final class GraphLayerUtil {\r
+\r
+    WriteGraph      graph;\r
+    Layer0          l0;\r
+    DiagramResource dia;\r
+\r
+    public GraphLayerUtil(WriteGraph graph) {\r
+        this.graph = graph;\r
+        this.l0 = Layer0.getInstance(graph);\r
+        this.dia = DiagramResource.getInstance(graph);\r
+    }\r
+\r
+    public GraphLayer createLayer(String layerName, boolean active) throws DatabaseException {\r
+        Resource layer = graph.newResource();\r
+        graph.claim(layer, l0.InstanceOf, null, dia.Layer);\r
+\r
+        // Assign tagging relations\r
+        Resource visibleTag = newTag(dia.IsVisible);\r
+        Resource focusableTag = newTag(dia.IsFocusable);\r
+        graph.claim(layer, dia.HasVisibleTag, visibleTag);\r
+        graph.claim(layer, dia.HasFocusableTag, focusableTag);\r
+\r
+        // Assign shared name property for all, the layer and the tags\r
+        Resource name = graph.newResource();\r
+        graph.claim(name, l0.InstanceOf, null, l0.String);\r
+        graph.claimValue(name, layerName);\r
+\r
+        graph.claim(layer, l0.HasName, name);\r
+        graph.claim(visibleTag, l0.HasName, name);\r
+        graph.claim(focusableTag, l0.HasName, name);\r
+\r
+        setLayerActive(layer, active);\r
+\r
+        return new GraphLayer(layerName, layer, visibleTag, focusableTag);\r
+    }\r
+\r
+    public Resource newTag(Resource baseTag) throws DatabaseException {\r
+        Resource tag = graph.newResource();\r
+        graph.claim(tag, l0.SubrelationOf, baseTag);\r
+        graph.claim(tag, l0.InverseOf, tag);\r
+        return tag;\r
+    }\r
+\r
+    public void setLayerActive(Resource layer, boolean active) throws ManyObjectsForFunctionalRelationException, ServiceException {\r
+        graph.claimLiteral(layer, dia.IsActive, Boolean.valueOf(active));\r
+    }\r
+\r
+}\r