/*
Violet - A program for editing UML diagrams.
Copyright (C) 2002 Cay S. Horstmann (http://horstmann.com)
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, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package com.horstmann.violet.framework;
import java.awt.Component;
import java.awt.KeyboardFocusManager;
import java.awt.event.ActionEvent;
import java.beans.PropertyEditorSupport;
import java.util.HashSet;
import java.util.Set;
import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.KeyStroke;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
/**
A property editor for the MultiLineString type.
*/
public class MultiLineStringEditor extends PropertyEditorSupport
{
public boolean supportsCustomEditor()
{
return true;
}
public Component getCustomEditor()
{
final MultiLineString value = (MultiLineString)getValue();
final JTextArea textArea = new JTextArea(ROWS, COLUMNS);
textArea.setFocusTraversalKeys(KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS, tab);
textArea.setFocusTraversalKeys(KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, shiftTab);
textArea.setText(value.getText());
textArea.getDocument().addDocumentListener(new
DocumentListener()
{
public void insertUpdate(DocumentEvent e)
{
value.setText(textArea.getText());
firePropertyChange();
}
public void removeUpdate(DocumentEvent e)
{
value.setText(textArea.getText());
firePropertyChange();
}
public void changedUpdate(DocumentEvent e)
{
}
});
return new JScrollPane(textArea);
}
// The actions
private static Action nextFocusAction = new AbstractAction("Move Focus Forward")
{
public void actionPerformed(ActionEvent evt)
{
((Component)evt.getSource()).transferFocus();
}
};
private static Action prevFocusAction = new AbstractAction("Move Focus Backwards")
{
public void actionPerformed(ActionEvent evt)
{
((Component)evt.getSource()).transferFocusBackward();
}
};
private static final int ROWS = 5;
private static final int COLUMNS = 30;
private static Set tab = new HashSet(1);
private static Set shiftTab = new HashSet (1);
static
{
tab.add(KeyStroke.getKeyStroke("TAB" ));
shiftTab.add(KeyStroke.getKeyStroke( "shift TAB" ));
}
}