/*
* Trace2DActionAddRemoveHighlighter, action to set a Highlighter on an ITrace2D.
* Copyright (C) 2007 - 2011 Achim Westermann.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* If you modify or optimize the code in a useful way please let me know.
* Achim.Westermann@gmx.de
*
*/
package info.monitorenter.gui.chart.events;
import info.monitorenter.gui.chart.IPointPainter;
import info.monitorenter.gui.chart.ITrace2D;
import info.monitorenter.gui.chart.controls.LayoutFactory.PropertyChangeCheckBoxMenuItem;
import java.awt.event.ActionEvent;
import java.beans.PropertyChangeEvent;
import javax.swing.AbstractButton;
/**
* <code>Action</code> that adds or removes constructor-given
* {@link info.monitorenter.gui.chart.IPointPainter} to the corresponding trace.
* <p>
* This action only works in combination with {@link AbstractButton}
* instances that send themselves as the event object to the
* {@link java.awt.event.ActionEvent}( {@link java.util.EventObject#getSource()}
* ) because <code>{@link AbstractButton#isSelected()}</code> is needed for state check.
* <p>
*
*
* @author <a href="mailto:Achim.Westermann@gmx.de">Achim Westermann </a>
*
* @version $Revision: 1.6 $
*/
public final class Trace2DActionAddRemoveHighlighter extends ATrace2DAction {
/**
* Generated <code>serialVersionUID</code>.
*/
private static final long serialVersionUID = 3978986583057707570L;
/**
* The stroke to set.
*/
private IPointPainter< ? > m_pointHighlighter;
/**
* Create an <code>Action</code> that accesses the trace and identifies itself
* with the given action String.
* <p>
*
* @param trace
* the target the action will work on.
*
* @param description
* the descriptive <code>String</code> that will be displayed by
* {@link javax.swing.AbstractButton} subclasses that get this
* <code>Action</code> assigned (
* {@link javax.swing.AbstractButton#setAction(javax.swing.Action)}).
*
* @param hightlighter
* the highlighter to add / remove from the trace.
*/
public Trace2DActionAddRemoveHighlighter(final ITrace2D trace, final String description,
final IPointPainter< ? > hightlighter) {
super(trace, description);
this.m_pointHighlighter = hightlighter;
trace.addPropertyChangeListener(ITrace2D.PROPERTY_POINT_HIGHLIGHTERS_CHANGED, this);
}
/**
* @see java.awt.event.ActionListener#actionPerformed(java.awt.event.ActionEvent)
*/
public void actionPerformed(final ActionEvent e) {
AbstractButton item = (AbstractButton) e.getSource();
boolean state = item.isSelected();
if (state) {
this.m_trace.addPointHighlighter(this.m_pointHighlighter);
} else {
boolean success = this.m_trace.removePointHighlighter(this.m_pointHighlighter);
if (success) {
// nop
} else {
// rewind state as this could not be done:
// contract for ITrace2D is, that at least one renderer should be
// defined!
item.setSelected(true);
item.invalidate();
item.repaint();
}
}
}
/**
* @see java.beans.PropertyChangeListener#propertyChange(java.beans.PropertyChangeEvent)
*/
public void propertyChange(final PropertyChangeEvent evt) {
String property = evt.getPropertyName();
if (property.equals(ITrace2D.PROPERTY_POINT_HIGHLIGHTERS_CHANGED)) {
IPointPainter< ? > oldValue = (IPointPainter< ? >) evt.getOldValue();
IPointPainter< ? > newValue = (IPointPainter< ? >) evt.getNewValue();
// added or removed?
if (oldValue == null) {
// added
if (newValue.equals(this.m_pointHighlighter)) {
this.firePropertyChange(PropertyChangeCheckBoxMenuItem.PROPERTY_SELECTED, new Boolean(
false), new Boolean(true));
}
} else {
// removed
if (oldValue.equals(this.m_pointHighlighter)) {
this.firePropertyChange(PropertyChangeCheckBoxMenuItem.PROPERTY_SELECTED, new Boolean(
true), new Boolean(false));
}
}
}
}
}