ElementSelectionManagerImpl.java
// @formatter:off
/*******************************************************************************
*
* This file is part of JMad.
*
* Copyright (c) 2008-2011, CERN. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************/
// @formatter:on
package cern.accsoft.steering.jmad.gui.manage.impl;
import java.util.ArrayList;
import java.util.List;
import cern.accsoft.steering.jmad.domain.elem.Element;
import cern.accsoft.steering.jmad.gui.manage.AbstractObservableManager;
import cern.accsoft.steering.jmad.gui.manage.ElementSelectionManager;
import cern.accsoft.steering.jmad.gui.manage.ElementSelectionManagerListener;
/**
* default implementation of the {@link ElementSelectionManager}. It keepos track of all the elements that are currently
* selected.
*
* @author Kajetan Fuchsberger (kajetan.fuchsberger at cern.ch)
*/
public class ElementSelectionManagerImpl extends AbstractObservableManager<ElementSelectionManagerListener> implements
ElementSelectionManager {
/** All the selected elements */
private List<Element> selectedElements = new ArrayList<Element>();
/** The most recently selected element */
private Element selectedElement = null;
@Override
public Element getSelectedElement() {
return this.selectedElement;
}
@Override
public List<Element> getSelectedElements() {
return this.selectedElements;
}
/**
* notifies all the listeners that the selected elements have changed.
*/
private void notifiyListenersChangedSelectedElements() {
for (ElementSelectionManagerListener listener : getListeners()) {
listener.changedSelectedElements(this.selectedElements, this.selectedElement);
}
}
@Override
public void setSelectedElements(List<Element> selectedElements, Element selectedElement) {
this.selectedElements = selectedElements;
this.selectedElement = selectedElement;
notifiyListenersChangedSelectedElements();
}
}