1 /*******************************************************************************
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2 * Copyright (c) 2007, 2011 Association for Decentralized Information Management in
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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.scenegraph.g2d.nodes.connection;
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14 import gnu.trove.map.hash.THashMap;
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16 import org.simantics.diagram.connection.RouteGraph;
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17 import org.simantics.diagram.connection.RouteLine;
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18 import org.simantics.diagram.connection.RouteTerminal;
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21 * @author Tuukka Lehtonen
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23 public class RemoveLineAction {
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27 RouteTerminal terminal;
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29 public RemoveLineAction(RouteGraph rg, RouteGraph rgc, RouteTerminal terminal) {
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32 this.terminal = terminal;
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35 public RouteGraph getOriginalRouteGraph() {
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39 public RouteGraph getRouteGraph() {
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45 * @param l the route line to remove
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48 * @return the performed action or <code>null</code> if no action to perform
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50 public static RemoveLineAction perform(RouteGraph rg, RouteLine line, double x, double y) {
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51 // Can't remove segments from connections that have only two terminals.
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52 if (rg.isSimpleConnection() || rg.getTerminals().size() <= 2)
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55 THashMap<Object, Object> map = new THashMap<Object, Object>();
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56 RouteGraph rgc = rg.copy(map);
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57 RouteLine lc = (RouteLine) map.get(line);
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59 RouteTerminal terminal = lc.getTerminal();
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60 if (terminal == null)
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63 rgc.disconnect(terminal);
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64 rgc.remove(terminal);
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66 return new RemoveLineAction(rg, rgc, terminal);
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