/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2012, 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.]
 *
 * ------------------------------
 * CombinedDomainXYPlotTests.java
 * ------------------------------
 * (C) Copyright 2003-2008, by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * Changes
 * -------
 * 21-Aug-2003 : Version 1 (DG);
 * 03-Jan-2008 : Added testNotification() (DG);
 *
 */

package org.jfree.chart.plot;

import org.jfree.chart.JFreeChart;
import org.jfree.chart.annotations.XYTextAnnotation;
import org.jfree.chart.axis.AxisLocation;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.event.ChartChangeEvent;
import org.jfree.chart.event.ChartChangeListener;
import org.jfree.chart.renderer.xy.StandardXYItemRenderer;
import org.jfree.chart.renderer.xy.XYItemRenderer;
import org.jfree.data.xy.XYDataset;
import org.jfree.data.xy.XYSeries;
import org.jfree.data.xy.XYSeriesCollection;
import org.junit.Test;

import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectInputStream;
import java.io.ObjectOutput;
import java.io.ObjectOutputStream;
import java.util.List;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotSame;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertTrue;

/**
 * Tests for the {@link CombinedDomainXYPlot} class.
 */
public class CombinedDomainXYPlotTest
        implements ChartChangeListener {

    /** A list of the events received. */
    private List<ChartChangeEvent> events = new java.util.ArrayList<ChartChangeEvent>();

    /**
     * Receives a chart change event.
     *
     * @param event  the event.
     */
    @Override
    public void chartChanged(ChartChangeEvent event) {
        this.events.add(event);
    }





    /**
     * Confirm that the constructor will accept a null axis.
     */
    @Test
    public void testConstructor1() {
        CombinedDomainXYPlot plot = new CombinedDomainXYPlot(null);
        assertEquals(null, plot.getDomainAxis());
    }

    /**
     * This is a test to replicate the bug report 987080.
     */
    @Test
    public void testRemoveSubplot() {
        CombinedDomainXYPlot plot = new CombinedDomainXYPlot();
        XYPlot plot1 = new XYPlot();
        XYPlot plot2 = new XYPlot();
        plot.add(plot1);
        plot.add(plot2);
        // remove plot2, but plot1 is removed instead
        plot.remove(plot2);
        List plots = plot.getSubplots();
        assertSame(plots.get(0), plot1);
    }

    /**
     * Tests the equals() method.
     */
    @Test
    public void testEquals() {
        CombinedDomainXYPlot plot1 = createPlot();
        CombinedDomainXYPlot plot2 = createPlot();
        assertEquals(plot1, plot2);
        assertEquals(plot2, plot1);
    }

    /**
     * Confirm that cloning works.
     */
    @Test
    public void testCloning() throws CloneNotSupportedException {
        CombinedDomainXYPlot plot1 = createPlot();
        CombinedDomainXYPlot plot2 = (CombinedDomainXYPlot) plot1.clone();
        assertNotSame(plot1, plot2);
        assertSame(plot1.getClass(), plot2.getClass());
        assertEquals(plot1, plot2);
    }

    /**
     * Serialize an instance, restore it, and check for equality.
     */
    @Test
    public void testSerialization() throws IOException, ClassNotFoundException {
        CombinedDomainXYPlot plot1 = createPlot();

        ByteArrayOutputStream buffer = new ByteArrayOutputStream();
        ObjectOutput out = new ObjectOutputStream(buffer);
        out.writeObject(plot1);
        out.close();

        ObjectInput in = new ObjectInputStream(new ByteArrayInputStream(
                buffer.toByteArray()));
        CombinedDomainXYPlot plot2 = (CombinedDomainXYPlot) in.readObject();
        in.close();

        assertEquals(plot1, plot2);
    }

    /**
     * Check that only one chart change event is generated by a change to a
     * subplot.
     */
    @Test
    public void testNotification() {
        CombinedDomainXYPlot plot = createPlot();
        JFreeChart chart = new JFreeChart(plot);
        chart.addChangeListener(this);
        XYPlot subplot1 = plot.getSubplots().get(0);
        NumberAxis yAxis = (NumberAxis) subplot1.getRangeAxis();
        yAxis.setAutoRangeIncludesZero(!yAxis.getAutoRangeIncludesZero());
        assertEquals(1, this.events.size());

        // a redraw should NOT trigger another change event
        BufferedImage image = new BufferedImage(200, 100,
                BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = image.createGraphics();
        this.events.clear();
        chart.draw(g2, new Rectangle2D.Double(0.0, 0.0, 200.0, 100.0));
        assertTrue(this.events.isEmpty());
    }

    /**
     * Creates a sample dataset.
     *
     * @return Series 1.
     */
    private XYDataset createDataset1() {

        // create dataset 1...
        XYSeries series1 = new XYSeries("Series 1");
        series1.add(10.0, 12353.3);
        series1.add(20.0, 13734.4);
        series1.add(30.0, 14525.3);
        series1.add(40.0, 13984.3);
        series1.add(50.0, 12999.4);
        series1.add(60.0, 14274.3);
        series1.add(70.0, 15943.5);
        series1.add(80.0, 14845.3);
        series1.add(90.0, 14645.4);
        series1.add(100.0, 16234.6);
        series1.add(110.0, 17232.3);
        series1.add(120.0, 14232.2);
        series1.add(130.0, 13102.2);
        series1.add(140.0, 14230.2);
        series1.add(150.0, 11235.2);

        XYSeries series2 = new XYSeries("Series 2");
        series2.add(10.0, 15000.3);
        series2.add(20.0, 11000.4);
        series2.add(30.0, 17000.3);
        series2.add(40.0, 15000.3);
        series2.add(50.0, 14000.4);
        series2.add(60.0, 12000.3);
        series2.add(70.0, 11000.5);
        series2.add(80.0, 12000.3);
        series2.add(90.0, 13000.4);
        series2.add(100.0, 12000.6);
        series2.add(110.0, 13000.3);
        series2.add(120.0, 17000.2);
        series2.add(130.0, 18000.2);
        series2.add(140.0, 16000.2);
        series2.add(150.0, 17000.2);

        XYSeriesCollection collection = new XYSeriesCollection();
        collection.addSeries(series1);
        collection.addSeries(series2);
        return collection;

    }

    /**
     * Creates a sample dataset.
     *
     * @return Series 2.
     */
    private XYDataset createDataset2() {

        XYSeries series2 = new XYSeries("Series 3");

        series2.add(10.0, 16853.2);
        series2.add(20.0, 19642.3);
        series2.add(30.0, 18253.5);
        series2.add(40.0, 15352.3);
        series2.add(50.0, 13532.0);
        series2.add(100.0, 12635.3);
        series2.add(110.0, 13998.2);
        series2.add(120.0, 11943.2);
        series2.add(130.0, 16943.9);
        series2.add(140.0, 17843.2);
        series2.add(150.0, 16495.3);
        series2.add(160.0, 17943.6);
        series2.add(170.0, 18500.7);
        series2.add(180.0, 19595.9);

        return new XYSeriesCollection(series2);

    }

    /**
     * Creates a sample plot.
     *
     * @return A sample plot.
     */
    private CombinedDomainXYPlot createPlot() {
        // create subplot 1...
        XYDataset data1 = createDataset1();
        XYItemRenderer renderer1 = new StandardXYItemRenderer();
        NumberAxis rangeAxis1 = new NumberAxis("Range 1");
        XYPlot subplot1 = new XYPlot(data1, null, rangeAxis1, renderer1);
        subplot1.setRangeAxisLocation(AxisLocation.BOTTOM_OR_LEFT);

        XYTextAnnotation annotation = new XYTextAnnotation("Hello!", 50.0,
                10000.0);
        annotation.setFont(new Font("SansSerif", Font.PLAIN, 9));
        annotation.setRotationAngle(Math.PI / 4.0);
        subplot1.addAnnotation(annotation);

        // create subplot 2...
        XYDataset data2 = createDataset2();
        XYItemRenderer renderer2 = new StandardXYItemRenderer();
        NumberAxis rangeAxis2 = new NumberAxis("Range 2");
        rangeAxis2.setAutoRangeIncludesZero(false);
        XYPlot subplot2 = new XYPlot(data2, null, rangeAxis2, renderer2);
        subplot2.setRangeAxisLocation(AxisLocation.TOP_OR_LEFT);

        // parent plot...
        CombinedDomainXYPlot plot = new CombinedDomainXYPlot(
                new NumberAxis("Domain"));
        plot.setGap(10.0);

        // add the subplots...
        plot.add(subplot1, 1);
        plot.add(subplot2, 1);
        plot.setOrientation(PlotOrientation.VERTICAL);
        return plot;
    }
}
