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/*******************************************************************************
* Copyright (c) 2010, 2010 THALES GLOBAL SERVICES.
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Obeo - initial API and implementation
*******************************************************************************/
package org.eclipse.sirius.diagram.ui.tools.internal.graphical.edit.policies;
import org.eclipse.gef.EditPart;
import org.eclipse.gef.Request;
import org.eclipse.gef.requests.ChangeBoundsRequest;
import com.google.common.collect.HashMultimap;
import com.google.common.collect.Multimap;
/**
* Records all requests that are sent to the given edit part and all its
* children.
*
* @author ymortier
*/
public class ChangeBoundRequestRecorder {
/** All recorded requests. */
private Multimap<EditPart, ChangeBoundsRequest> allRequests = HashMultimap.create();
/** <code>true</code> if the recorder is recording. */
private boolean recording;
/**
* Creates a new Request recorder. All requests sent to <code>root</code>
* and its children will be registered.
*
*/
public ChangeBoundRequestRecorder() {
}
/**
* Start to record the ChangeBoundRequests.
*/
public void startRecording() {
recording = true;
allRequests = HashMultimap.create();
}
/**
* Stops the recorder.
*/
public void stopRecording() {
recording = false;
}
/**
* Returns <code>true</code> if the recorder is recording.
*
* @return <code>true</code> if the recorder is recording.
*/
public boolean isRecording() {
return recording;
}
/**
* Returns all recorded requests.
*
* @return all recorded requests.
*/
public Multimap<EditPart, ChangeBoundsRequest> getAllRequests() {
return this.allRequests;
}
/**
* Tell the recorder to process the request. If active it will record it,
* otherwise it will just ignore it.
*
* @param request
* request to process.
* @param host
* the editpart which has received the request.
*/
public void processRequest(Request request, EditPart host) {
if (isRecording() && request instanceof ChangeBoundsRequest) {
allRequests.put(host, (ChangeBoundsRequest) request);
}
}
/**
* Disposes the recorder.
*/
public void dispose() {
if (isRecording()) {
this.stopRecording();
}
if (this.allRequests != null) {
this.allRequests.clear();
}
this.allRequests = null;
}
}
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