--- /dev/null
+/*******************************************************************************\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.browsing.ui.common.processors;\r
+\r
+import java.util.Collection;\r
+import java.util.HashMap;\r
+\r
+import org.simantics.browsing.ui.BuiltinKeys;\r
+import org.simantics.browsing.ui.NodeContext;\r
+import org.simantics.browsing.ui.PrimitiveQueryUpdater;\r
+import org.simantics.browsing.ui.BuiltinKeys.SelectedComparableFactoryKey;\r
+import org.simantics.browsing.ui.NodeContext.PrimitiveQueryKey;\r
+import org.simantics.browsing.ui.content.ComparableContextFactory;\r
+import org.simantics.utils.datastructures.Pair;\r
+\r
+public class UserSelectedComparableFactoryQueryProcessor extends AbstractPrimitiveQueryProcessor<ComparableContextFactory> {\r
+\r
+ HashMap<NodeContext, ComparableContextFactory> factories = new HashMap<NodeContext, ComparableContextFactory>();\r
+ HashMap<NodeContext, Pair<PrimitiveQueryKey<?>, PrimitiveQueryUpdater>> updaters = new HashMap<NodeContext, Pair<PrimitiveQueryKey<?>, PrimitiveQueryUpdater>>();\r
+\r
+ @Override\r
+ public String toString() {\r
+ return "UserSelectedComparableFactoryProcessor";\r
+ }\r
+\r
+ @Override\r
+ public Object getIdentifier() {\r
+ return BuiltinKeys.SelectedComparableFactoryKey.class;\r
+ }\r
+\r
+ @Override\r
+ public ComparableContextFactory query(PrimitiveQueryUpdater updater, NodeContext context,\r
+ PrimitiveQueryKey<ComparableContextFactory> key) {\r
+ updaters.put(context, new Pair<PrimitiveQueryKey<?>, PrimitiveQueryUpdater>(key, updater));\r
+ ComparableContextFactory result = factories.get(context);\r
+ if (result != null)\r
+ return result;\r
+\r
+ SelectedComparableFactoryKey k = (SelectedComparableFactoryKey) key;\r
+ Collection<ComparableContextFactory> factories = k.getParameter(0);\r
+ if (factories.isEmpty())\r
+ return null;\r
+\r
+ return factories.iterator().next();\r
+ }\r
+\r
+ public ComparableContextFactory getComparator(NodeContext context) {\r
+ return factories.get(context);\r
+ }\r
+\r
+ /**\r
+ * Invoked by the user interfaces for selecting comparators.\r
+ * \r
+ * @param context\r
+ * @param factory\r
+ */\r
+ @SuppressWarnings("unchecked")\r
+ public void select(NodeContext context, ComparableContextFactory factory) {\r
+ factories.put(context, factory);\r
+ Pair<PrimitiveQueryKey<?>, PrimitiveQueryUpdater> p = updaters.get(context);\r
+ if (p.second == null)\r
+ throw new IllegalArgumentException("context not found in cache");\r
+ p.second.scheduleReplace(context, (PrimitiveQueryKey<ComparableContextFactory>) p.first, factory);\r
+ }\r
+\r
+}\r