/**
* BSD-style license; for more info see http://pmd.sourceforge.net/license.html
*/
package net.sourceforge.pmd.util.viewer.gui;
import java.awt.BorderLayout;
import java.util.Vector;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.ListSelectionModel;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import net.sourceforge.pmd.lang.ast.Node;
import net.sourceforge.pmd.util.viewer.model.ViewerModel;
import net.sourceforge.pmd.util.viewer.model.ViewerModelEvent;
import net.sourceforge.pmd.util.viewer.model.ViewerModelListener;
/**
* A panel showing XPath expression evaluation results
*
* @author Boris Gruschko ( boris at gruschko.org )
* @version $Id$
*/
public class EvaluationResultsPanel extends JPanel implements ViewerModelListener {
private ViewerModel model;
private JList list;
/**
* constructs the panel
*
* @param model
* model to refer to
*/
public EvaluationResultsPanel(ViewerModel model) {
super(new BorderLayout());
this.model = model;
init();
}
private void init() {
model.addViewerModelListener(this);
list = new JList();
list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
list.addListSelectionListener(new ListSelectionListener() {
@Override
public void valueChanged(ListSelectionEvent e) {
if (list.getSelectedValue() != null) {
model.selectNode((Node) list.getSelectedValue(), EvaluationResultsPanel.this);
}
}
});
add(new JScrollPane(list), BorderLayout.CENTER);
}
/**
* @see ViewerModelListener#viewerModelChanged(ViewerModelEvent)
*/
@Override
@SuppressWarnings("PMD.UseArrayListInsteadOfVector")
public void viewerModelChanged(ViewerModelEvent e) {
switch (e.getReason()) {
case ViewerModelEvent.PATH_EXPRESSION_EVALUATED:
if (e.getSource() != this) {
list.setListData(new Vector(model.getLastEvaluationResults()));
}
break;
case ViewerModelEvent.CODE_RECOMPILED:
list.setListData(new Vector(0));
break;
default:
// Do nothing
break;
}
}
}