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.graph.impl;
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14 import org.simantics.browsing.ui.BuiltinKeys;
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15 import org.simantics.browsing.ui.NodeContext;
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16 import org.simantics.browsing.ui.PrimitiveQueryUpdater;
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17 import org.simantics.browsing.ui.BuiltinKeys.ViewpointKey;
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18 import org.simantics.browsing.ui.common.NodeContextUtil;
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19 import org.simantics.browsing.ui.common.viewpoints.LazyContainerViewpoint;
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20 import org.simantics.browsing.ui.content.Viewpoint;
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21 import org.simantics.browsing.ui.content.ViewpointFactory;
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23 public class TypeIndexStructureViewpointFactory implements ViewpointFactory {
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26 public Viewpoint create(final PrimitiveQueryUpdater provider, final NodeContext context, final ViewpointKey key) {
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27 assert (provider != null);
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28 assert (context != null);
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30 final LazyContainerViewpoint result = new LazyContainerViewpoint();
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32 final TypeIndex index = (TypeIndex) context.getConstant(BuiltinKeys.INPUT);
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33 assert (index != null);
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35 NodeContext[] resultContexts = NodeContextUtil.toContextsWithInput(index.instances);
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37 result.setChildren(provider, resultContexts);
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38 result.setHasChildren(resultContexts.length > 0);
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44 public String toString() {
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45 return "Structure by types";
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