/*
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* 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 Lesser General Public License for more details.
*
* Copyright (c) 2009 Pentaho Corporation. All rights reserved.
*/
package org.pentaho.reporting.engine.classic.extensions.legacy.charts.propertyeditor;
import java.awt.Color;
import java.awt.Component;
import java.awt.Graphics;
import java.awt.Rectangle;
import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;
import java.beans.PropertyEditor;
import javax.swing.JColorChooser;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import org.pentaho.reporting.libraries.base.util.StringUtils;
import org.pentaho.plugin.jfreereport.reportcharts.ColorHelper;
/**
* Todo: Document Me
*
* @author Thomas Morgner
*/
public class ColorPropertyEditor implements PropertyEditor
{
private class ColorSelectionChangeListener implements ChangeListener
{
private ColorSelectionChangeListener()
{
}
public void stateChanged(final ChangeEvent e)
{
setValue(colorChooser.getSelectionModel().getSelectedColor());
}
}
private JColorChooser colorChooser;
private PropertyChangeSupport propertyChangeSupport;
private Color value;
public ColorPropertyEditor()
{
propertyChangeSupport = new PropertyChangeSupport(this);
}
public void setValue(final Object value)
{
final Object oldValue = this.value;
if (value instanceof Color)
{
if (colorChooser != null)
{
colorChooser.setColor((Color) value);
}
this.value = (Color) value;
}
else if (value instanceof String)
{
if (!StringUtils.isEmpty((String) value))
{
setAsText(value.toString());
}
else
{
this.value = null;
}
}
else
{
if (colorChooser != null)
{
colorChooser.setColor(null);
}
this.value = null;
}
propertyChangeSupport.firePropertyChange(null, oldValue, this.value);
}
public Object getValue()
{
return getAsText();
}
public boolean isPaintable()
{
return true;
}
public void paintValue(final Graphics gfx, final Rectangle box)
{
if (value == null)
{
return;
}
final Graphics graphics = gfx.create();
graphics.setColor(value);
graphics.fillRect(box.x, box.y, box.width, box.height);
graphics.setColor(Color.BLACK);
graphics.drawRect(box.x, box.y, box.width, box.height);
graphics.dispose();
}
public String getJavaInitializationString()
{
return null;
}
public String getAsText()
{
return ColorHelper.lookupName(value);
}
public void setAsText(final String text) throws IllegalArgumentException
{
if (text == null)
{
setValue(null);
}
else
{
try
{
setValue(Color.decode(text));
}
catch (NumberFormatException ex)
{
setValue(ColorHelper.lookupColor(text));
}
}
}
public String[] getTags()
{
return null;
}
public Component getCustomEditor()
{
if (colorChooser == null)
{
colorChooser = new JColorChooser();
colorChooser.setColor(value);
colorChooser.getSelectionModel().addChangeListener(new ColorSelectionChangeListener());
}
return colorChooser;
}
public boolean supportsCustomEditor()
{
return true;
}
public void addPropertyChangeListener(final PropertyChangeListener listener)
{
propertyChangeSupport.addPropertyChangeListener(listener);
}
public void removePropertyChangeListener(final PropertyChangeListener listener)
{
propertyChangeSupport.removePropertyChangeListener(listener);
}
}