/* ===========================================================
 
* 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.]
 
*
 
* -------------------
 
* ChartPanelTest.java
 
* -------------------
 
* (C) Copyright 2004-2016, by Object Refinery Limited and Contributors.
 
*
 
* Original Author:
  
David Gilbert (for Object Refinery Limited);
 
* Contributor(s):
   
-;
 
*
 
* Changes
 
* -------
 
* 13-Jul-2004 : Version 1 (DG);
 
* 12-Jan-2009 : Added test2502355() (DG);
 
* 08-Jun-2009 : Added testSetMouseWheelEnabled() (DG);
 
*/

package org.jfree.chart;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.assertFalse;
import java.awt.geom.Rectangle2D;
import java.util.EventListener;
import java.util.List;

import javax.swing.event.CaretListener;

import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.event.ChartChangeEvent;
import org.jfree.chart.event.ChartChangeListener;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.XYPlot;
import org.jfree.data.xy.DefaultXYDataset;
import org.junit.Test;

/**
 
* Tests for the {@link ChartPanel} class.
 
*/
public class ChartPanelTest implements ChartChangeListener, ChartMouseListener {

    
private List chartChangeEvents = new java.util.ArrayList();

    
/**
     
* Receives a chart change event and stores it in a list for later
     
* inspection.
     
*
     
* @param event
  
the event.
     
*/

    
@Override
    
public void chartChanged(ChartChangeEvent event) {
        
this.chartChangeEvents.add(event);
    
}

    
/**
     
* Test that the constructor will accept a null chart.
     
*/
    
@Test
    
public void testConstructor1() {
        
ChartPanel panel = new ChartPanel(null);
        
assertEquals(null, panel.getChart());
    
}

    
/**
     
* Test that it is possible to set the panel's chart to null.
     
*/
    
@Test
    
public void testSetChart() {
        
JFreeChart chart = new JFreeChart(new XYPlot());
        
ChartPanel panel = new ChartPanel(chart);
        
panel.setChart(null);
        
assertEquals(null, panel.getChart());
    
}

    
/**
     
* Check the behaviour of the getListeners() method.
     
*/
    
@Test
    
public void testGetListeners() {
        
ChartPanel p = new ChartPanel(null);
        
p.addChartMouseListener(this);
        
EventListener[] listeners = p.getListeners(ChartMouseListener.class);
        
assertEquals(1, listeners.length);
        
assertEquals(this, listeners[0]);
        
// try a listener type that isn't registered
        
listeners = p.getListeners(CaretListener.class);
        
assertEquals(0, listeners.length);
        
p.removeChartMouseListener(this);
        
listeners = p.getListeners(ChartMouseListener.class);
        
assertEquals(0, listeners.length);

        
// try a null argument
        
boolean pass = false;
        
try {
            
listeners = p.getListeners((Class) null);
        
}
        
catch (NullPointerException e) {
            
pass = true;
        
}
        
assertTrue(pass);

        
// try a class that isn't a listener
        
pass = false;
        
try {
            
listeners = p.getListeners(Integer.class);
        
}
        
catch (ClassCastException e) {
            
pass = true;
        
}
        
assertTrue(pass);
    
}

    
/**
     
* Ignores a mouse click event.
     
*
     
* @param event
  
the event.
     
*/

    
@Override
    
public void chartMouseClicked(ChartMouseEvent event) {
        
// ignore
    
}

    
/**
     
* Ignores a mouse move event.
     
*
     
* @param event
  
the event.
     
*/

    
@Override
    
public void chartMouseMoved(ChartMouseEvent event) {
        
// ignore
    
}

    
/**
     
* Checks that a call to the zoom() method generates just one
     
* ChartChangeEvent.
     
*/

    
@Test
    
public void test2502355_zoom() {
        
DefaultXYDataset dataset = new DefaultXYDataset();
        
JFreeChart chart = ChartFactory.createXYLineChart("TestChart", "X",
                
"Y", dataset, PlotOrientation.VERTICAL, false, false, false);
        
ChartPanel panel = new ChartPanel(chart);
        
chart.addChangeListener(this);
        
this.chartChangeEvents.clear();
        
panel.zoom(new Rectangle2D.Double(1.0, 2.0, 3.0, 4.0));
        
assertEquals(1, this.chartChangeEvents.size());
    
}

    
/**
     
* Checks that a call to the zoomInBoth() method generates just one
     
* ChartChangeEvent.
     
*/

    
@Test
    
public void test2502355_zoomInBoth() {
        
DefaultXYDataset dataset = new DefaultXYDataset();
        
JFreeChart chart = ChartFactory.createXYLineChart("TestChart", "X",
                
"Y", dataset, PlotOrientation.VERTICAL, false, false, false);
        
ChartPanel panel = new ChartPanel(chart);
        
chart.addChangeListener(this);
        
this.chartChangeEvents.clear();
        
panel.zoomInBoth(1.0, 2.0);
        
assertEquals(1, this.chartChangeEvents.size());
    
}

    
/**
     
* Checks that a call to the zoomOutBoth() method generates just one
     
* ChartChangeEvent.
     
*/

    
@Test
    
public void test2502355_zoomOutBoth() {
        
DefaultXYDataset dataset = new DefaultXYDataset();
        
JFreeChart chart = ChartFactory.createXYLineChart("TestChart", "X",
                
"Y", dataset, PlotOrientation.VERTICAL, false, false, false);
        
ChartPanel panel = new ChartPanel(chart);
        
chart.addChangeListener(this);
        
this.chartChangeEvents.clear();
        
panel.zoomOutBoth(1.0, 2.0);
        
assertEquals(1, this.chartChangeEvents.size());
    
}

    
/**
     
* Checks that a call to the restoreAutoBounds() method generates just one
     
* ChartChangeEvent.
     
*/

    
@Test
    
public void test2502355_restoreAutoBounds() {
        
DefaultXYDataset dataset = new DefaultXYDataset();
        
JFreeChart chart = ChartFactory.createXYLineChart("TestChart", "X",
                
"Y", dataset, PlotOrientation.VERTICAL, false, false, false);
        
ChartPanel panel = new ChartPanel(chart);
        
chart.addChangeListener(this);
        
this.chartChangeEvents.clear();
        
panel.restoreAutoBounds();
        
assertEquals(1, this.chartChangeEvents.size());
    
}

    
/**
     
* Checks that a call to the zoomInDomain() method, for a plot with more
     
* than one domain axis, generates just one ChartChangeEvent.
     
*/

    
@Test
    
public void test2502355_zoomInDomain() {
        
DefaultXYDataset dataset = new DefaultXYDataset();
        
JFreeChart chart = ChartFactory.createXYLineChart("TestChart", "X",
                
"Y", dataset, PlotOrientation.VERTICAL, false, false, false);
        
XYPlot plot = (XYPlot) chart.getPlot();
        
plot.setDomainAxis(1, new NumberAxis("X2"));
        
ChartPanel panel = new ChartPanel(chart);
        
chart.addChangeListener(this);
        
this.chartChangeEvents.clear();
        
panel.zoomInDomain(1.0, 2.0);
        
assertEquals(1, this.chartChangeEvents.size());
    
}

    
/**
     
* Checks that a call to the zoomInRange() method, for a plot with more
     
* than one range axis, generates just one ChartChangeEvent.
     
*/

    
@Test
    
public void test2502355_zoomInRange() {
        
DefaultXYDataset dataset = new DefaultXYDataset();
        
JFreeChart chart = ChartFactory.createXYLineChart("TestChart", "X",
                
"Y", dataset, PlotOrientation.VERTICAL, false, false, false);
        
XYPlot plot = (XYPlot) chart.getPlot();
        
plot.setRangeAxis(1, new NumberAxis("X2"));
        
ChartPanel panel = new ChartPanel(chart);
        
chart.addChangeListener(this);
        
this.chartChangeEvents.clear();
        
panel.zoomInRange(1.0, 2.0);
        
assertEquals(1, this.chartChangeEvents.size());
    
}

    
/**
     
* Checks that a call to the zoomOutDomain() method, for a plot with more
     
* than one domain axis, generates just one ChartChangeEvent.
     
*/

    
@Test
    
public void test2502355_zoomOutDomain() {
        
DefaultXYDataset dataset = new DefaultXYDataset();
        
JFreeChart chart = ChartFactory.createXYLineChart("TestChart", "X",
                
"Y", dataset, PlotOrientation.VERTICAL, false, false, false);
        
XYPlot plot = (XYPlot) chart.getPlot();
        
plot.setDomainAxis(1, new NumberAxis("X2"));
        
ChartPanel panel = new ChartPanel(chart);
        
chart.addChangeListener(this);
        
this.chartChangeEvents.clear();
        
panel.zoomOutDomain(1.0, 2.0);
        
assertEquals(1, this.chartChangeEvents.size());
    
}

    
/**
     
* Checks that a call to the zoomOutRange() method, for a plot with more
     
* than one range axis, generates just one ChartChangeEvent.
     
*/

    
@Test
    
public void test2502355_zoomOutRange() {
        
DefaultXYDataset dataset = new DefaultXYDataset();
        
JFreeChart chart = ChartFactory.createXYLineChart("TestChart", "X",
                
"Y", dataset, PlotOrientation.VERTICAL, false, false, false);
        
XYPlot plot = (XYPlot) chart.getPlot();
        
plot.setRangeAxis(1, new NumberAxis("X2"));
        
ChartPanel panel = new ChartPanel(chart);
        
chart.addChangeListener(this);
        
this.chartChangeEvents.clear();
        
panel.zoomOutRange(1.0, 2.0);
        
assertEquals(1, this.chartChangeEvents.size());
    
}

    
/**
     
* Checks that a call to the restoreAutoDomainBounds() method, for a plot
     
* with more than one range axis, generates just one ChartChangeEvent.
     
*/

    
@Test
    
public void test2502355_restoreAutoDomainBounds() {
        
DefaultXYDataset dataset = new DefaultXYDataset();
        
JFreeChart chart = ChartFactory.createXYLineChart("TestChart", "X",
                
"Y", dataset, PlotOrientation.VERTICAL, false, false, false);
        
XYPlot plot = (XYPlot) chart.getPlot();
        
plot.setDomainAxis(1, new NumberAxis("X2"));
        
ChartPanel panel = new ChartPanel(chart);
        
chart.addChangeListener(this);
        
this.chartChangeEvents.clear();
        
panel.restoreAutoDomainBounds();
        
assertEquals(1, this.chartChangeEvents.size());
    
}

    
/**
     
* Checks that a call to the restoreAutoRangeBounds() method, for a plot
     
* with more than one range axis, generates just one ChartChangeEvent.
     
*/

    
@Test
    
public void test2502355_restoreAutoRangeBounds() {
        
DefaultXYDataset dataset = new DefaultXYDataset();
        
JFreeChart chart = ChartFactory.createXYLineChart("TestChart", "X",
                
"Y", dataset, PlotOrientation.VERTICAL, false, false, false);
        
XYPlot plot = (XYPlot) chart.getPlot();
        
plot.setRangeAxis(1, new NumberAxis("X2"));
        
ChartPanel panel = new ChartPanel(chart);
        
chart.addChangeListener(this);
        
this.chartChangeEvents.clear();
        
panel.restoreAutoRangeBounds();
        
assertEquals(1, this.chartChangeEvents.size());
    
}

    
/**
     
* In version 1.0.13 there is a bug where enabling the mouse wheel handler
     
* twice would in fact disable it.
     
*/

    
@Test
    
public void testSetMouseWheelEnabled() {
        
DefaultXYDataset dataset = new DefaultXYDataset();
        
JFreeChart chart = ChartFactory.createXYLineChart("TestChart", "X",
                
"Y", dataset, PlotOrientation.VERTICAL, false, false, false);
        
ChartPanel panel = new ChartPanel(chart);
        
panel.setMouseWheelEnabled(true);
        
assertTrue(panel.isMouseWheelEnabled());
        
panel.setMouseWheelEnabled(true);
        
assertTrue(panel.isMouseWheelEnabled());
        
panel.setMouseWheelEnabled(false);
        
assertFalse(panel.isMouseWheelEnabled());
    
}
}