/*
* Freeplane - mind map editor
* Copyright (C) 2009 Dimitry Polivaev
*
* This file author is Dimitry Polivaev
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.freeplane.features.mode;
import java.util.HashSet;
import java.util.LinkedList;
import org.freeplane.core.util.LogUtils;
import org.freeplane.features.map.INodeSelectionListener;
import org.freeplane.features.map.NodeModel;
/**
* @author Dimitry Polivaev
* Mar 12, 2009
*/
public class SelectionController {
final private LinkedList<INodeSelectionListener> nodeSelectionListeners;
public SelectionController() {
super();
nodeSelectionListeners = new LinkedList<INodeSelectionListener>();
}
public void addNodeSelectionListener(final INodeSelectionListener listener) {
nodeSelectionListeners.add(listener);
}
public LinkedList<INodeSelectionListener> getNodeSelectionListeners() {
return nodeSelectionListeners;
}
public void onDeselect(final NodeModel node) {
try {
final HashSet<INodeSelectionListener> copy = new HashSet<INodeSelectionListener>(nodeSelectionListeners);
for (final INodeSelectionListener listener : copy) {
listener.onDeselect(node);
}
}
catch (final RuntimeException e) {
LogUtils.severe("Error in node selection listeners", e);
}
}
public void onSelect(final NodeModel node) {
for (final INodeSelectionListener listener : nodeSelectionListeners) {
listener.onSelect(node);
}
}
public void removeNodeSelectionListener(final INodeSelectionListener listener) {
nodeSelectionListeners.remove(listener);
}
}