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CheckBoxTreeSample.java
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CheckBoxTreeSample.java
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/*
* #%L
* Swing JTree check box nodes.
* %%
* Copyright (C) 2012 - 2017 Board of Regents of the University of
* Wisconsin-Madison.
* %%
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
* #L%
*/
package org.scijava.swing.checkboxtree;
import java.awt.BorderLayout;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.event.TreeModelEvent;
import javax.swing.event.TreeModelListener;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeModel;
import org.scijava.swing.checkboxtree.CheckBoxNodeData;
import org.scijava.swing.checkboxtree.CheckBoxNodeEditor;
import org.scijava.swing.checkboxtree.CheckBoxNodeRenderer;
/**
* Illustrates usage of the check box tree in {@link org.scijava.swing.checkboxtree}.
* <p>
* Thanks to John Zukowski for the <a
* href="http://www.java2s.com/Code/Java/Swing-JFC/CheckBoxNodeTreeSample.htm"
* >sample code</a> upon which this is based.
* </p>
*
* @author Curtis Rueden
*/
public class CheckBoxTreeSample {
public static void main(final String args[]) {
final DefaultMutableTreeNode root = new DefaultMutableTreeNode("Root");
final DefaultMutableTreeNode accessibility =
add(root, "Accessibility", true);
add(accessibility, "Move system caret with focus/selection changes", false);
add(accessibility, "Always expand alt text for images", true);
root.add(accessibility);
final DefaultMutableTreeNode browsing =
new DefaultMutableTreeNode("Browsing");
add(browsing, "Notify when downloads complete", true);
add(browsing, "Disable script debugging", true);
add(browsing, "Use AutoComplete", true);
add(browsing, "Browse in a new process", false);
root.add(browsing);
final DefaultTreeModel treeModel = new DefaultTreeModel(root);
final JTree tree = new JTree(treeModel);
final CheckBoxNodeRenderer renderer = new CheckBoxNodeRenderer();
tree.setCellRenderer(renderer);
final CheckBoxNodeEditor editor = new CheckBoxNodeEditor(tree);
tree.setCellEditor(editor);
tree.setEditable(true);
// listen for changes in the selection
tree.addTreeSelectionListener(new TreeSelectionListener() {
@Override
public void valueChanged(final TreeSelectionEvent e) {
System.out.println(System.currentTimeMillis() + ": selection changed");
}
});
// listen for changes in the model (including check box toggles)
treeModel.addTreeModelListener(new TreeModelListener() {
@Override
public void treeNodesChanged(final TreeModelEvent e) {
System.out.println(System.currentTimeMillis() + ": nodes changed");
}
@Override
public void treeNodesInserted(final TreeModelEvent e) {
System.out.println(System.currentTimeMillis() + ": nodes inserted");
}
@Override
public void treeNodesRemoved(final TreeModelEvent e) {
System.out.println(System.currentTimeMillis() + ": nodes removed");
}
@Override
public void treeStructureChanged(final TreeModelEvent e) {
System.out.println(System.currentTimeMillis() + ": structure changed");
}
});
// show the tree onscreen
final JFrame frame = new JFrame("CheckBox Tree");
final JScrollPane scrollPane = new JScrollPane(tree);
frame.getContentPane().add(scrollPane, BorderLayout.CENTER);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(300, 150);
frame.setVisible(true);
}
private static DefaultMutableTreeNode add(
final DefaultMutableTreeNode parent, final String text,
final boolean checked)
{
final CheckBoxNodeData data = new CheckBoxNodeData(text, checked);
final DefaultMutableTreeNode node = new DefaultMutableTreeNode(data);
parent.add(node);
return node;
}
}