Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.browsing.ui.swt / src / org / simantics / browsing / ui / swt / DefaultIsCheckedProcessor2.java

diff --git a/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/DefaultIsCheckedProcessor2.java b/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/DefaultIsCheckedProcessor2.java
new file mode 100644 (file)
index 0000000..aa9b5c0
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+++ b/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/DefaultIsCheckedProcessor2.java
@@ -0,0 +1,97 @@
+/*******************************************************************************\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.swt;\r
+\r
+import java.util.ArrayList;\r
+import java.util.Collection;\r
+import java.util.Collections;\r
+\r
+import org.simantics.browsing.ui.BuiltinKeys;\r
+import org.simantics.browsing.ui.CheckedState;\r
+import org.simantics.browsing.ui.NodeContext;\r
+import org.simantics.browsing.ui.NodeQueryManager;\r
+import org.simantics.browsing.ui.NodeQueryProcessor;\r
+import org.simantics.browsing.ui.Tester;\r
+import org.simantics.browsing.ui.BuiltinKeys.CheckedStateKey;\r
+import org.simantics.browsing.ui.NodeContext.QueryKey;\r
+import org.simantics.browsing.ui.common.EvaluatorData;\r
+import org.simantics.browsing.ui.common.Preference;\r
+import org.simantics.browsing.ui.common.EvaluatorData.Evaluator;\r
+import org.simantics.browsing.ui.common.EvaluatorData.EvaluatorTree;\r
+import org.simantics.browsing.ui.content.CheckedStateFactory;\r
+import org.simantics.utils.datastructures.collections.CollectionUtils;\r
+\r
+/**\r
+ * @author Antti Villberg\r
+ */\r
+public class DefaultIsCheckedProcessor2 implements NodeQueryProcessor<CheckedState> {\r
+\r
+    private final EvaluatorData data;\r
+\r
+    public DefaultIsCheckedProcessor2(EvaluatorData data) {\r
+        this.data = data;\r
+    }\r
+\r
+    @Override\r
+    public QueryKey<CheckedState> getIdentifier() {\r
+       return BuiltinKeys.IS_CHECKED;\r
+    }\r
+\r
+    @Override\r
+    public CheckedState query(final NodeQueryManager manager, final NodeContext context) {\r
+        assert context != null;\r
+\r
+        Object input = context.getConstant(BuiltinKeys.INPUT);\r
+        assert input != null;\r
+\r
+        Collection<Evaluator> evals = data.get(input);\r
+        if (evals.isEmpty())\r
+            return null;\r
+\r
+        ArrayList<Preference<CheckedStateFactory>> factories = new ArrayList<Preference<CheckedStateFactory>>(4);\r
+        for (Evaluator eval : evals) {\r
+            evaluateTree(manager, context, eval.getCheckStateTree(), factories);\r
+        }\r
+\r
+        if (factories.isEmpty())\r
+            return null;\r
+\r
+        if (factories.size() >= 1) {\r
+            Collections.sort(factories);\r
+            return manager.query(context, new CheckedStateKey(factories.get(0).object));\r
+        } else {\r
+               return null;\r
+        }\r
+\r
+    }\r
+\r
+    protected void evaluateTree(NodeQueryManager manager, NodeContext context, EvaluatorTree<CheckedStateFactory> tree, Collection<Preference<CheckedStateFactory>> result) {\r
+        Tester test = tree.getTester();\r
+\r
+        if (test.test(manager, context)) {\r
+            CollectionUtils.checkedAdd(tree.getAcceptedFactories(), result);\r
+\r
+            Collection<EvaluatorTree<CheckedStateFactory>> children = tree.getChildren();\r
+            if (children == null)\r
+                return;\r
+            for (EvaluatorTree<CheckedStateFactory> e : children) {\r
+                evaluateTree(manager, context, e, result);\r
+            }\r
+        }\r
+    }\r
+    \r
+    @Override\r
+    public String toString() {\r
+        return "IsCheckedProcessor";\r
+    }\r
+\r
+}
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