/* ===========================================================
 
* JFreeChart : a free chart library for the Java(tm) platform
 
* ===========================================================
 
*
 
* (C) Copyright 2000-2016, by Object Refinery Limited and Contributors.
 
*
 
* Project Info:
  
http://www.jfree.org/jfreechart/index.html
 
*
 
* 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 Street, Fifth Floor, Boston, MA
  
02110-1301,
 
* USA.
 
*
 
* [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
 
* Other names may be trademarks of their respective owners.]
 
*
 
* ----------------------
 
* DefaultPolarPlotEditor.java
 
* ----------------------
 
* (C) Copyright 2005-2011, by Object Refinery Limited and Contributors.
 
*
 
* Original Author:
  
Martin Hoeller;
 
* Contributor(s):
   
-;
 
*
 
* Changes
 
* -------
 
* 03-Nov-2011 : Version 1 (MH);
 
*
 
*/


package org.jfree.chart.editor;

import java.awt.event.ActionEvent;
import java.awt.event.FocusEvent;
import java.awt.event.FocusListener;

import javax.swing.BorderFactory;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTabbedPane;
import javax.swing.JTextField;

import org.jfree.chart.axis.NumberTickUnit;
import org.jfree.chart.plot.Plot;
import org.jfree.chart.plot.PolarPlot;
import org.jfree.chart.ui.LCBLayout;

/**
 
* A panel for editing the properties of a {@link PolarPlot}.
 
*/

public class DefaultPolarPlotEditor extends DefaultPlotEditor
    
implements FocusListener {

    
/** A text field to enter a manual TickUnit. */
    
private JTextField manualTickUnit;

    
/** A text field to enter the angleOffset. */
    
private JTextField angleOffset;

    
/** The size for the manual TickUnit. */
    
private double manualTickUnitValue;

    
/** The value for the plot's angle offset. */
    
private double angleOffsetValue;

    

    
/**
     
* Standard constructor - constructs a panel for editing the properties of
     
* the specified plot.
     
*
     
* @param plot
  
the plot, which should be changed.
     
*/

    
public DefaultPolarPlotEditor(PolarPlot plot) {
        
super(plot);
        
this.angleOffsetValue = plot.getAngleOffset();
        
this.angleOffset.setText(Double.toString(this.angleOffsetValue));
        
this.manualTickUnitValue = plot.getAngleTickUnit().getSize();
        
this.manualTickUnit.setText(Double.toString(this.manualTickUnitValue));
    
}

    
/**
     
* Creates a tabbed pane for editing the plot attributes.
     
*
 

     
* @param plot
  
the plot.
     
*
 

     
* @return A tabbed pane.
 

     
*/

    
@Override
    
protected JTabbedPane createPlotTabs(Plot plot) {
        
JTabbedPane tabs = super.createPlotTabs(plot);
        
// TODO find a better localization key
        
tabs.insertTab(localizationResources.getString("General1"), null,
                
createPlotPanel(), null, 0);
        
tabs.setSelectedIndex(0);
        
return tabs;
    
}

    
private JPanel createPlotPanel() {
        
JPanel plotPanel = new JPanel(new LCBLayout(3));
        
plotPanel.setBorder(BorderFactory.createEmptyBorder(4, 4, 4, 4));

        
plotPanel.add(new JLabel(localizationResources.getString(
                
"AngleOffset")));
        
this.angleOffset = new JTextField(Double.toString(
                
this.angleOffsetValue));
        
this.angleOffset.setActionCommand("AngleOffsetValue");
        
this.angleOffset.addActionListener(this);
        
this.angleOffset.addFocusListener(this);
        
plotPanel.add(this.angleOffset);
        
plotPanel.add(new JPanel());

        
plotPanel.add(new JLabel(localizationResources.getString(
                
"Manual_TickUnit_value")));
        
this.manualTickUnit = new JTextField(Double.toString(
                
this.manualTickUnitValue));
        
this.manualTickUnit.setActionCommand("TickUnitValue");
        
this.manualTickUnit.addActionListener(this);
        
this.manualTickUnit.addFocusListener(this);
        
plotPanel.add(this.manualTickUnit);
        
plotPanel.add(new JPanel());

        
return plotPanel;
    
}

    
/**
     
* Does nothing.
     
*
     
* @param event
  
the event.
     
*/
    
@Override
    
public void focusGained(FocusEvent event) {
        
// don't need to do anything
    
}

    
/**
     
*
  
Revalidates minimum/maximum range.
     
*
     
*
  
@param eventthe event.
     
*/

    
@Override
    
public void focusLost(FocusEvent event) {
        
if (event.getSource() == this.angleOffset) {
            
validateAngleOffset();
        
}
        
else if (event.getSource() == this.manualTickUnit) {
            
validateTickUnit();
        
}
    
}

    
/**
     
* Handles actions from within the property panel.
     
* @param event an event.
     
*/

    
@Override
    
public void actionPerformed(ActionEvent event) {
        
String command = event.getActionCommand();
        
if (command.equals("AngleOffsetValue")) {
            
validateAngleOffset();
        
}
        
else if (command.equals("TickUnitValue")) {
            
validateTickUnit();
        
}
    
}

    
/**
     
* Validates the angle offset entered by the user.
     
*/

    
public void validateAngleOffset() {
        
double newOffset;
        
try {
            
newOffset = Double.parseDouble(this.angleOffset.getText());
        
}
        
catch (NumberFormatException e) {
            
newOffset = this.angleOffsetValue;
        
}
        
this.angleOffsetValue = newOffset;
        
this.angleOffset.setText(Double.toString(this.angleOffsetValue));
    
}

    
/**
     
* Validates the tick unit entered by the user.
     
*/
    
public void validateTickUnit() {
        
double newTickUnit;
        
try {
            
newTickUnit = Double.parseDouble(this.manualTickUnit.getText());
        
}
        
catch (NumberFormatException e) {
            
newTickUnit = this.manualTickUnitValue;
        
}

        
if (newTickUnit > 0.0 && newTickUnit < 360.0) {
            
this.manualTickUnitValue = newTickUnit;
        
}
        
this.manualTickUnit.setText(Double.toString(this.manualTickUnitValue));
    
}

    
@Override
    
public void updatePlotProperties(Plot plot) {
        
super.updatePlotProperties(plot);
        
PolarPlot pp = (PolarPlot) plot;
        
pp.setAngleTickUnit(new NumberTickUnit(this.manualTickUnitValue));
        
pp.setAngleOffset(this.angleOffsetValue);
    
}
}