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'databene commons' is an open source Java library by Volker Bergmann.
It provides extensions to the Java core library by utility classes, abstract concepts
and concrete implementations.
/*
* Copyright (C) 2004-2015 Volker Bergmann ([email protected]).
* 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.
*/
package org.databene.commons.ui.swing;
import java.util.ArrayList;
import java.util.List;
import javax.swing.event.TreeModelEvent;
import javax.swing.event.TreeModelListener;
import javax.swing.tree.TreeModel;
/**
* Provides handling for {@link TreeModelListener}s.
* Created: 22.08.2012 17:13:08
* @since 0.5.18
* @author Volker Bergmann
*/
public abstract class AbstractTreeModel implements TreeModel {
private List listeners;
public AbstractTreeModel() {
this.listeners = new ArrayList();
}
@Override
public void addTreeModelListener(TreeModelListener listener) {
listeners.add(listener);
}
@Override
public void removeTreeModelListener(TreeModelListener listener) {
listeners.remove(listener);
}
protected void fireTreeStructureChanged(Object source, Object[] path) {
TreeModelEvent event = new TreeModelEvent(source, path);
for (int i = listeners.size() - 1; i >= 0; i--)
listeners.get(i).treeStructureChanged(event);
}
protected void fireTreeNodesChanged(Object source, Object[] path, int[] childIndices, Object[] children) {
TreeModelEvent event = new TreeModelEvent(source, path, childIndices, children);
for (int i = listeners.size() - 1; i >= 0; i--)
listeners.get(i).treeNodesChanged(event);
}
protected void fireTreeNodesInserted(Object source, Object[] path, int[] childIndices, Object[] children) {
TreeModelEvent e = new TreeModelEvent(source, path, childIndices, children);
for (int i = listeners.size() - 1; i >= 0; i--) {
listeners.get(i).treeNodesInserted(e);
}
}
protected void fireTreeNodesRemoved(Object source, Object[] path, int[] childIndices, Object[] children) {
TreeModelEvent e = new TreeModelEvent(source, path, childIndices, children);
for (int i = listeners.size() - 1; i >= 0; i --)
listeners.get(i).treeNodesRemoved(e);
}
}