Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.browsing.ui.swt / src / org / simantics / browsing / ui / swt / ValuePropertyViewpointFactory.java

diff --git a/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/ValuePropertyViewpointFactory.java b/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/ValuePropertyViewpointFactory.java
new file mode 100644 (file)
index 0000000..e432aac
--- /dev/null
+++ b/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/ValuePropertyViewpointFactory.java
@@ -0,0 +1,68 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2012 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.browsing.ui.swt;\r
+\r
+import java.util.ArrayList;\r
+import java.util.Collection;\r
+\r
+import org.simantics.browsing.ui.BuiltinKeys;\r
+import org.simantics.browsing.ui.BuiltinKeys.ViewpointKey;\r
+import org.simantics.browsing.ui.NodeContext;\r
+import org.simantics.browsing.ui.PrimitiveQueryUpdater;\r
+import org.simantics.browsing.ui.common.NodeContextBuilder;\r
+import org.simantics.browsing.ui.content.Viewpoint;\r
+import org.simantics.browsing.ui.content.ViewpointFactory;\r
+import org.simantics.browsing.ui.graph.impl.LazyViewpoint;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.common.ResourceArray;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.layer0.Layer0;\r
+import org.simantics.ui.utils.ResourceAdaptionUtils;\r
+\r
+public class ValuePropertyViewpointFactory implements ViewpointFactory {\r
+\r
+    @Override\r
+    public Viewpoint create(PrimitiveQueryUpdater provider, final NodeContext context, ViewpointKey key) {\r
+        assert(provider != null);\r
+        assert(context != null);\r
+\r
+        return new LazyViewpoint(provider, context, key) {\r
+            @Override\r
+            public NodeContext[] children(ReadGraph graph) throws DatabaseException {\r
+                Layer0 L0 = Layer0.getInstance(graph);\r
+                ResourceArray ra = ResourceAdaptionUtils.toSingleResourceArray(context.getConstant(BuiltinKeys.INPUT));\r
+                Collection<Resource> children = graph.getObjects(ra.resources[0], L0.HasProperty);\r
+\r
+                ArrayList<NodeContext> resultContexts = new ArrayList<NodeContext>();\r
+                for (Resource child : children) {\r
+                    if (graph.isInstanceOf(child, L0.Literal)) {\r
+                        resultContexts.add(NodeContextBuilder.buildWithInput(child));\r
+                    }\r
+                }\r
+\r
+                return resultContexts.toArray(new NodeContext[resultContexts.size()]);\r
+            }\r
+\r
+            @Override\r
+            public Boolean hasChildren(ReadGraph graph) throws DatabaseException {\r
+                return children(graph).length > 0;\r
+            }\r
+        };\r
+    }\r
+\r
+    @Override\r
+    public String toString() {\r
+        return "Scalar values";\r
+    }\r
+\r
+}\r