1 /*******************************************************************************
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2 * Copyright (c) 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.diagram.adapter;
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14 import java.util.concurrent.atomic.AtomicBoolean;
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16 import org.eclipse.core.runtime.IAdaptable;
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17 import org.eclipse.core.runtime.IAdapterFactory;
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18 import org.simantics.g2d.canvas.ICanvasContext;
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21 * @author Tuukka Lehtonen
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23 public class CanvasAdapterFactory implements IAdapterFactory {
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26 * Hack for preventing eternal {@link #getAdapter(Object, Class)} recursion
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28 AtomicBoolean adapting = new AtomicBoolean(false);
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30 @SuppressWarnings("rawtypes")
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32 public Object getAdapter(Object adaptableObject, Class adapterType) {
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33 if (!adapting.compareAndSet(false, true)) {
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37 if (ICanvasContext.class.equals(adapterType)) {
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38 if (adaptableObject instanceof IAdaptable) {
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39 return ((IAdaptable) adaptableObject).getAdapter(adapterType);
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44 adapting.set(false);
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48 @SuppressWarnings("rawtypes")
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50 public Class[] getAdapterList() {
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51 return new Class[] { ICanvasContext.class };
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