1 /*******************************************************************************
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2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
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3 * in Industry THTH ry.
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4 * All rights reserved. This program and the accompanying materials
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5 * are made available under the terms of the Eclipse Public License v1.0
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6 * which accompanies this distribution, and is available at
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7 * http://www.eclipse.org/legal/epl-v10.html
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10 * VTT Technical Research Centre of Finland - initial API and implementation
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11 *******************************************************************************/
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12 package org.simantics.browsing.ui.swt;
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14 import java.util.ArrayList;
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15 import java.util.Collection;
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16 import java.util.Collections;
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18 import org.simantics.browsing.ui.BuiltinKeys;
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19 import org.simantics.browsing.ui.CheckedState;
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20 import org.simantics.browsing.ui.NodeContext;
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21 import org.simantics.browsing.ui.NodeQueryManager;
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22 import org.simantics.browsing.ui.NodeQueryProcessor;
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23 import org.simantics.browsing.ui.Tester;
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24 import org.simantics.browsing.ui.BuiltinKeys.CheckedStateKey;
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25 import org.simantics.browsing.ui.NodeContext.QueryKey;
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26 import org.simantics.browsing.ui.common.EvaluatorData;
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27 import org.simantics.browsing.ui.common.Preference;
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28 import org.simantics.browsing.ui.common.EvaluatorData.Evaluator;
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29 import org.simantics.browsing.ui.common.EvaluatorData.EvaluatorTree;
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30 import org.simantics.browsing.ui.content.CheckedStateFactory;
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31 import org.simantics.utils.datastructures.collections.CollectionUtils;
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34 * @author Antti Villberg
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36 public class DefaultIsCheckedProcessor2 implements NodeQueryProcessor<CheckedState> {
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38 private final EvaluatorData data;
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40 public DefaultIsCheckedProcessor2(EvaluatorData data) {
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45 public QueryKey<CheckedState> getIdentifier() {
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46 return BuiltinKeys.IS_CHECKED;
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50 public CheckedState query(final NodeQueryManager manager, final NodeContext context) {
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51 assert context != null;
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53 Object input = context.getConstant(BuiltinKeys.INPUT);
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54 assert input != null;
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56 Collection<Evaluator> evals = data.get(input);
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57 if (evals.isEmpty())
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60 ArrayList<Preference<CheckedStateFactory>> factories = new ArrayList<Preference<CheckedStateFactory>>(4);
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61 for (Evaluator eval : evals) {
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62 evaluateTree(manager, context, eval.getCheckStateTree(), factories);
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65 if (factories.isEmpty())
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68 if (factories.size() >= 1) {
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69 Collections.sort(factories);
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70 return manager.query(context, new CheckedStateKey(factories.get(0).object));
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77 protected void evaluateTree(NodeQueryManager manager, NodeContext context, EvaluatorTree<CheckedStateFactory> tree, Collection<Preference<CheckedStateFactory>> result) {
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78 Tester test = tree.getTester();
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80 if (test.test(manager, context)) {
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81 CollectionUtils.checkedAdd(tree.getAcceptedFactories(), result);
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83 Collection<EvaluatorTree<CheckedStateFactory>> children = tree.getChildren();
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84 if (children == null)
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86 for (EvaluatorTree<CheckedStateFactory> e : children) {
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87 evaluateTree(manager, context, e, result);
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93 public String toString() {
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94 return "IsCheckedProcessor";
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