/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2007, 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.  
 *
 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
 * in the United States and other countries.]
 *
 * --------------------------------
 * XYLineAndShapeRendererTests.java
 * --------------------------------
 * (C) Copyright 2004, 2005, 2007, by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * Changes
 * -------
 * 27-Jan-2004 : Version 1 (DG);
 * 07-Jan-2005 : Added check for findRangeBounds() method (DG);
 * 21-Feb-2007 : Check independence in testCloning() (DG);
 * 17-May-2007 : Added testGetLegendItemSeriesIndex() (DG);
 * 
 */

package org.jfree.chart.renderer.xy.junit;

import java.awt.geom.Line2D;
import java.awt.geom.Rectangle2D;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.ObjectInput;
import java.io.ObjectInputStream;
import java.io.ObjectOutput;
import java.io.ObjectOutputStream;

import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.LegendItem;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer;
import org.jfree.chart.urls.TimeSeriesURLGenerator;
import org.jfree.data.Range;
import org.jfree.data.xy.TableXYDataset;
import org.jfree.data.xy.XYSeries;
import org.jfree.data.xy.XYSeriesCollection;

/**
 * Tests for the {@link XYLineAndShapeRenderer} class.
 */
public class XYLineAndShapeRendererTests extends TestCase {

    /**
     * Returns the tests as a test suite.
     *
     * @return The test suite.
     */
    public static Test suite() {
        return new TestSuite(XYLineAndShapeRendererTests.class);
    }

    /**
     * Constructs a new set of tests.
     *
     * @param name  the name of the tests.
     */
    public XYLineAndShapeRendererTests(String name) {
        super(name);
    }

    /**
     * Test that the equals() method distinguishes all fields.
     */
    public void testEquals() {
        
        XYLineAndShapeRenderer r1 = new XYLineAndShapeRenderer();
        XYLineAndShapeRenderer r2 = new XYLineAndShapeRenderer();
        assertEquals(r1, r2);
        assertEquals(r2, r1);
    
        r1.setLinesVisible(true);
        assertFalse(r1.equals(r2));
        r2.setLinesVisible(true);
        assertTrue(r1.equals(r2));
        
        r1.setSeriesLinesVisible(3, true);
        assertFalse(r1.equals(r2));
        r2.setSeriesLinesVisible(3, true);
        assertTrue(r1.equals(r2));
        
        r1.setBaseLinesVisible(false);
        assertFalse(r1.equals(r2));
        r2.setBaseLinesVisible(false);
        assertTrue(r1.equals(r2));
        
        r1.setLegendLine(new Line2D.Double(1.0, 2.0, 3.0, 4.0));
        assertFalse(r1.equals(r2));
        r2.setLegendLine(new Line2D.Double(1.0, 2.0, 3.0, 4.0));
        assertTrue(r1.equals(r2));
        
        r1.setShapesVisible(true);
        assertFalse(r1.equals(r2));
        r2.setShapesVisible(true);
        assertTrue(r1.equals(r2));
        
        r1.setSeriesShapesVisible(3, true);
        assertFalse(r1.equals(r2));
        r2.setSeriesShapesVisible(3, true);
        assertTrue(r1.equals(r2));
        
        r1.setBaseShapesVisible(false);
        assertFalse(r1.equals(r2));
        r2.setBaseShapesVisible(false);
        assertTrue(r1.equals(r2));
        
        r1.setShapesFilled(true);
        assertFalse(r1.equals(r2));
        r2.setShapesFilled(true);
        assertTrue(r1.equals(r2));
        
        r1.setSeriesShapesFilled(3, true);
        assertFalse(r1.equals(r2));
        r2.setSeriesShapesFilled(3, true);
        assertTrue(r1.equals(r2));
        
        r1.setBaseShapesFilled(false);
        assertFalse(r1.equals(r2));
        r2.setBaseShapesFilled(false);
        assertTrue(r1.equals(r2));
    
        r1.setDrawOutlines(!r1.getDrawOutlines());
        assertFalse(r1.equals(r2));
        r2.setDrawOutlines(r1.getDrawOutlines());
        assertTrue(r1.equals(r2));
    
        r1.setUseOutlinePaint(true);
        assertFalse(r1.equals(r2));
        r2.setUseOutlinePaint(true);
        assertTrue(r1.equals(r2));
        
        r1.setUseFillPaint(true);
        assertFalse(r1.equals(r2));
        r2.setUseFillPaint(true);
        assertTrue(r1.equals(r2));
        
        r1.setDrawSeriesLineAsPath(true);
        assertFalse(r1.equals(r2));
        r2.setDrawSeriesLineAsPath(true);
        assertTrue(r1.equals(r2));
    }
    
    /**
     * Test that the equals() method works for a TimeSeriesURLGenerator.
     */
    public void testEquals2() {
        XYLineAndShapeRenderer r1 = new XYLineAndShapeRenderer();
        XYLineAndShapeRenderer r2 = new XYLineAndShapeRenderer();
        assertEquals(r1, r2);
        assertEquals(r2, r1);
    
        r1.setURLGenerator(new TimeSeriesURLGenerator());
        assertFalse(r1.equals(r2));
        r2.setURLGenerator(new TimeSeriesURLGenerator());
        assertTrue(r1.equals(r2));
    }


    /**
     * Two objects that are equal are required to return the same hashCode. 
     */
    public void testHashcode() {
        XYLineAndShapeRenderer r1 = new XYLineAndShapeRenderer();
        XYLineAndShapeRenderer r2 = new XYLineAndShapeRenderer();
        assertTrue(r1.equals(r2));
        int h1 = r1.hashCode();
        int h2 = r2.hashCode();
        assertEquals(h1, h2);
    }
    
    /**
     * Confirm that cloning works.
     */
    public void testCloning() {
        Rectangle2D legendShape = new Rectangle2D.Double(1.0, 2.0, 3.0, 4.0);
        XYLineAndShapeRenderer r1 = new XYLineAndShapeRenderer();
        r1.setLegendLine(legendShape);
        XYLineAndShapeRenderer r2 = null;
        try {
            r2 = (XYLineAndShapeRenderer) r1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(r1 != r2);
        assertTrue(r1.getClass() == r2.getClass());
        assertTrue(r1.equals(r2));
        
        r1.setSeriesLinesVisible(0, false);
        assertFalse(r1.equals(r2));
        r2.setSeriesLinesVisible(0, false);
        assertTrue(r1.equals(r2));
        
        legendShape.setRect(4.0, 3.0, 2.0, 1.0);
        assertFalse(r1.equals(r2));
        r2.setLegendLine(new Rectangle2D.Double(4.0, 3.0, 2.0, 1.0));
        assertTrue(r1.equals(r2));
        
        r1.setSeriesShapesVisible(1, true);
        assertFalse(r1.equals(r2));
        r2.setSeriesShapesVisible(1, true);
        assertTrue(r1.equals(r2));
        
        r1.setSeriesShapesFilled(1, true);
        assertFalse(r1.equals(r2));
        r2.setSeriesShapesFilled(1, true);
        assertTrue(r1.equals(r2));
    }

    /**
     * Serialize an instance, restore it, and check for equality.
     */
    public void testSerialization() {

        XYLineAndShapeRenderer r1 = new XYLineAndShapeRenderer();
        XYLineAndShapeRenderer r2 = null;
        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(r1);
            out.close();

            ObjectInput in = new ObjectInputStream(
                    new ByteArrayInputStream(buffer.toByteArray()));
            r2 = (XYLineAndShapeRenderer) in.readObject();
            in.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        assertEquals(r1, r2);

    }

    /**
     * Check that the renderer is calculating the domain bounds correctly.
     */
    public void testFindDomainBounds() {
        XYSeriesCollection dataset 
                = RendererXYPackageTests.createTestXYSeriesCollection();
        JFreeChart chart = ChartFactory.createXYLineChart(
                "Test Chart", "X", "Y", dataset, PlotOrientation.VERTICAL, 
                false, false, false);
        XYPlot plot = (XYPlot) chart.getPlot();
        NumberAxis domainAxis = (NumberAxis) plot.getDomainAxis();
        domainAxis.setAutoRangeIncludesZero(false);
        Range bounds = domainAxis.getRange();
        assertFalse(bounds.contains(0.9));
        assertTrue(bounds.contains(1.0));
        assertTrue(bounds.contains(2.0));
        assertFalse(bounds.contains(2.10));
    }
    
    /**
     * Check that the renderer is calculating the range bounds correctly.
     */
    public void testFindRangeBounds() {
        TableXYDataset dataset 
                = RendererXYPackageTests.createTestTableXYDataset();
        JFreeChart chart = ChartFactory.createXYLineChart(
                "Test Chart", "X", "Y", dataset, PlotOrientation.VERTICAL, 
                false, false, false);
        XYPlot plot = (XYPlot) chart.getPlot();
        NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
        rangeAxis.setAutoRangeIncludesZero(false);
        Range bounds = rangeAxis.getRange();
        assertFalse(bounds.contains(1.0));
        assertTrue(bounds.contains(2.0));
        assertTrue(bounds.contains(5.0));
        assertFalse(bounds.contains(6.0));
    }
    
    /**
     * A check for the datasetIndex and seriesIndex fields in the LegendItem
     * returned by the getLegendItem() method.
     */
    public void testGetLegendItemSeriesIndex() {
        XYSeriesCollection d1 = new XYSeriesCollection();
        XYSeries s1 = new XYSeries("S1");
        s1.add(1.0, 1.1);
        XYSeries s2 = new XYSeries("S2");
        s2.add(1.0, 1.1);
        d1.addSeries(s1);
        d1.addSeries(s2);
        
        XYSeriesCollection d2 = new XYSeriesCollection();
        XYSeries s3 = new XYSeries("S3");
        s3.add(1.0, 1.1);
        XYSeries s4 = new XYSeries("S4");
        s4.add(1.0, 1.1);
        XYSeries s5 = new XYSeries("S5");
        s5.add(1.0, 1.1);
        d2.addSeries(s3);
        d2.addSeries(s4);
        d2.addSeries(s5);

        XYLineAndShapeRenderer r = new XYLineAndShapeRenderer();
        XYPlot plot = new XYPlot(d1, new NumberAxis("x"),
                new NumberAxis("y"), r);
        plot.setDataset(1, d2);
        /*JFreeChart chart =*/ new JFreeChart(plot);
        LegendItem li = r.getLegendItem(1, 2);
        assertEquals("S5", li.getLabel());
        assertEquals(1, li.getDatasetIndex());
        assertEquals(2, li.getSeriesIndex());
    }

}
