org.jfree.chart.axis.CategoryAxis Java Examples

/**
 * A check for the datasetIndex and seriesIndex fields in the LegendItem
 * returned by the getLegendItem() method.
 */
@Test
public void testGetLegendItemSeriesIndex() {
    DefaultCategoryDataset dataset0 = new DefaultCategoryDataset();
    dataset0.addValue(21.0, "R1", "C1");
    dataset0.addValue(22.0, "R2", "C1");
    DefaultCategoryDataset dataset1 = new DefaultCategoryDataset();
    dataset1.addValue(23.0, "R3", "C1");
    dataset1.addValue(24.0, "R4", "C1");
    dataset1.addValue(25.0, "R5", "C1");
    BarRenderer r = new BarRenderer();
    CategoryPlot plot = new CategoryPlot(dataset0, new CategoryAxis("x"),
            new NumberAxis("y"), r);
    plot.setDataset(1, dataset1);
    /*JFreeChart chart =*/ new JFreeChart(plot);
    LegendItem li = r.getLegendItem(1, 2);
    assertEquals("R5", li.getLabel());
    assertEquals(1, li.getDatasetIndex());
    assertEquals(2, li.getSeriesIndex());
}
 

/**
 * Draws the bar for a single (series, category) data item.
 *
 * @param g2  the graphics device.
 * @param state  the renderer state.
 * @param dataArea  the data area.
 * @param plot  the plot.
 * @param domainAxis  the domain axis.
 * @param rangeAxis  the range axis.
 * @param dataset  the dataset.
 * @param row  the row index (zero-based).
 * @param column  the column index (zero-based).
 * @param pass  the pass index.
 */
@Override
public void drawItem(Graphics2D g2, CategoryItemRendererState state,
        Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis,
        ValueAxis rangeAxis, CategoryDataset dataset, int row, int column,
        int pass) {

     if (dataset instanceof IntervalCategoryDataset) {
         IntervalCategoryDataset d = (IntervalCategoryDataset) dataset;
         drawInterval(g2, state, dataArea, plot, domainAxis, rangeAxis,
                 d, row, column);
     }
     else {
         super.drawItem(g2, state, dataArea, plot, domainAxis, rangeAxis,
                 dataset, row, column, pass);
     }

 }
 

/**
 * A check for the datasetIndex and seriesIndex fields in the LegendItem
 * returned by the getLegendItem() method.
 */
public void testGetLegendItemSeriesIndex() {
    DefaultCategoryDataset dataset0 = new DefaultCategoryDataset();
    dataset0.addValue(21.0, "R1", "C1");
    dataset0.addValue(22.0, "R2", "C1");        
    DefaultCategoryDataset dataset1 = new DefaultCategoryDataset();
    dataset1.addValue(23.0, "R3", "C1");
    dataset1.addValue(24.0, "R4", "C1");        
    dataset1.addValue(25.0, "R5", "C1");        
    LevelRenderer r = new LevelRenderer();
    CategoryPlot plot = new CategoryPlot(dataset0, new CategoryAxis("x"),
            new NumberAxis("y"), r);
    plot.setDataset(1, dataset1);
    /*JFreeChart chart =*/ new JFreeChart(plot);
    LegendItem li = r.getLegendItem(1, 2);
    assertEquals("R5", li.getLabel());
    assertEquals(1, li.getDatasetIndex());
    assertEquals(2, li.getSeriesIndex());
}
 

/**
 * Draws all the annotations for the specified layer.
 *
 * @param g2  the graphics device.
 * @param dataArea  the data area.
 * @param domainAxis  the domain axis.
 * @param rangeAxis  the range axis.
 * @param layer  the layer.
 * @param info  the plot rendering info.
 *
 * @since 1.2.0
 */
public void drawAnnotations(Graphics2D g2, Rectangle2D dataArea,
        CategoryAxis domainAxis, ValueAxis rangeAxis, Layer layer,
        PlotRenderingInfo info) {

    Iterator iterator = null;
    if (layer.equals(Layer.FOREGROUND)) {
        iterator = this.foregroundAnnotations.iterator();
    }
    else if (layer.equals(Layer.BACKGROUND)) {
        iterator = this.backgroundAnnotations.iterator();
    }
    else {
        // should not get here
        throw new RuntimeException("Unknown layer.");
    }
    while (iterator.hasNext()) {
        CategoryAnnotation annotation = (CategoryAnnotation) iterator.next();
        annotation.draw(g2, this.plot, dataArea, domainAxis, rangeAxis,
                0, info);
    }

}
 

/**
 * Draws a chart where the dataset contains a null min regular value.
 */
public void testDrawWithNullMinRegular() {
    boolean success = false;
    try {
        DefaultBoxAndWhiskerCategoryDataset dataset 
                = new DefaultBoxAndWhiskerCategoryDataset();
        dataset.add(new BoxAndWhiskerItem(new Double(1.0), new Double(2.0),
                new Double(3.0), new Double(4.0), null, 
                new Double(4.5), new Double(-0.5), new Double(5.5), 
                null), "S1", "C1");
        CategoryPlot plot = new CategoryPlot(dataset, 
                new CategoryAxis("Category"), new NumberAxis("Value"), 
                new BoxAndWhiskerRenderer());
        ChartRenderingInfo info = new ChartRenderingInfo();
        JFreeChart chart = new JFreeChart(plot);
        /* BufferedImage image = */ chart.createBufferedImage(300, 200, 
                info);
        success = true;
    }
    catch (Exception e) {
        success = false;
    }
    assertTrue(success);
}
 

@Test
public void testMapDatasetToDomainAxis() {
    CategoryDataset dataset = new DefaultCategoryDataset();
    CategoryAxis xAxis = new CategoryAxis("X");
    NumberAxis yAxis = new NumberAxis("Y");
    CategoryItemRenderer renderer = new BarRenderer();
    CategoryPlot plot = new CategoryPlot(dataset, xAxis, yAxis, renderer);

    CategoryAxis xAxis2 = new CategoryAxis("X2");
    plot.setDomainAxis(11, xAxis2);
    
    // add a second dataset
    DefaultCategoryDataset dataset2 = new DefaultCategoryDataset();
    dataset2.setValue(1, "R1", "C1");
    plot.setDataset(99, dataset);    
    
    assertEquals(xAxis, plot.getDomainAxisForDataset(99));

    // now map the dataset to the second xAxis
    plot.mapDatasetToDomainAxis(99, 11);
    assertEquals(xAxis2, plot.getDomainAxisForDataset(99));
}
 

/**
 * Some checks for the getDomainAxisIndex() method.
 */
@Test
public void testGetDomainAxisIndex() {
    CategoryAxis domainAxis1 = new CategoryAxis("X1");
    CategoryAxis domainAxis2 = new CategoryAxis("X2");
    NumberAxis rangeAxis1 = new NumberAxis("Y1");
    CategoryPlot plot = new CategoryPlot(null, domainAxis1, rangeAxis1,
            null);
    assertEquals(0, plot.getDomainAxisIndex(domainAxis1));
    assertEquals(-1, plot.getDomainAxisIndex(domainAxis2));
    plot.setDomainAxis(1, domainAxis2);
    assertEquals(1, plot.getDomainAxisIndex(domainAxis2));
    assertEquals(-1, plot.getDomainAxisIndex(new CategoryAxis("X2")));
    boolean pass = false;
    try {
        plot.getDomainAxisIndex(null);
    }
    catch (IllegalArgumentException e) {
        pass = true;
    }
    assertTrue(pass);
}
 

/**
 * Removes a subplot from the combined chart.  Potentially, this removes
 * some unique categories from the overall union of the datasets...so the
 * domain axis is reconfigured, then a {@link PlotChangeEvent} is sent to
 * all registered listeners.
 *
 * @param subplot  the subplot (<code>null</code> not permitted).
 */
public void remove(CategoryPlot subplot) {
    if (subplot == null) {
        throw new IllegalArgumentException("Null 'subplot' argument.");
    }
    int position = -1;
    int size = this.subplots.size();
    int i = 0;
    while (position == -1 && i < size) {
        if (this.subplots.get(i) == subplot) {
            position = i;
        }
        i++;
    }
    if (position != -1) {
        this.subplots.remove(position);
        subplot.setParent(null);
        subplot.removeChangeListener(this);
        CategoryAxis domain = getDomainAxis();
        if (domain != null) {
            domain.configure();
        }
        fireChangeEvent();
    }
}
 

/**
 * Draws the chart with a <code>null</code> info object to make sure that
 * no exceptions are thrown (particularly by code in the renderer).
 */
@Test
public void testDrawWithNullInfo() {
    try {
        DefaultCategoryDataset dataset = new DefaultCategoryDataset();
        dataset.addValue(1.0, "S1", "C1");
        CategoryPlot plot = new CategoryPlot(dataset,
                new CategoryAxis("Category"), new NumberAxis("Value"),
                new MinMaxCategoryRenderer());
        JFreeChart chart = new JFreeChart(plot);
        /* BufferedImage image = */ chart.createBufferedImage(300, 200,
                null);
    }
    catch (NullPointerException e) {
        fail();
    }
}
 

/**
 * Returns a list of the categories that should be displayed for the
 * specified axis.
 * 
 * @param axis  the axis (<code>null</code> not permitted)
 * 
 * @return The categories.
 * 
 * @since 1.0.3
 */
public List getCategoriesForAxis(CategoryAxis axis) {
    List result = new ArrayList();
    int axisIndex = this.domainAxes.indexOf(axis);
    List datasets = datasetsMappedToDomainAxis(axisIndex);
    Iterator iterator = datasets.iterator();
    while (iterator.hasNext()) {
        CategoryDataset dataset = (CategoryDataset) iterator.next();
        // add the unique categories from this dataset
        for (int i = 0; i < dataset.getColumnCount(); i++) {
            Comparable category = dataset.getColumnKey(i);
            if (!result.contains(category)) {
                result.add(category);
            }
        }
    }
    return result;
}
 

/**
 * Draws a chart where the dataset contains a null max regular value.
 */
@Test
public void testDrawWithNullMaxRegular() {
    try {
        DefaultBoxAndWhiskerCategoryDataset dataset
                = new DefaultBoxAndWhiskerCategoryDataset();
        dataset.add(new BoxAndWhiskerItem(new Double(1.0), new Double(2.0),
                new Double(3.0), new Double(4.0), new Double(0.5),
                null, new Double(-0.5), new Double(5.5),
                null), "S1", "C1");
        CategoryPlot plot = new CategoryPlot(dataset,
                new CategoryAxis("Category"), new NumberAxis("Value"),
                new BoxAndWhiskerRenderer());
        ChartRenderingInfo info = new ChartRenderingInfo();
        JFreeChart chart = new JFreeChart(plot);
        /* BufferedImage image = */ chart.createBufferedImage(300, 200,
                info);
    }
    catch (Exception e) {
        fail("No exception should be thrown.");
    }
}
 

/**
 * Returns a list of the categories that should be displayed for the
 * specified axis.
 * 
 * @param axis  the axis (<code>null</code> not permitted)
 * 
 * @return The categories.
 * 
 * @since 1.0.3
 */
public List getCategoriesForAxis(CategoryAxis axis) {
    List result = new ArrayList();
    int axisIndex = this.domainAxes.indexOf(axis);
    List datasets = datasetsMappedToDomainAxis(axisIndex);
    Iterator iterator = datasets.iterator();
    while (iterator.hasNext()) {
        CategoryDataset dataset = (CategoryDataset) iterator.next();
        // add the unique categories from this dataset
        for (int i = 0; i < dataset.getColumnCount(); i++) {
            Comparable category = dataset.getColumnKey(i);
            if (!result.contains(category)) {
                result.add(category);
            }
        }
    }
    return result;
}
 

/**
 * A check for the datasetIndex and seriesIndex fields in the LegendItem
 * returned by the getLegendItem() method.
 */
@Test
public void testGetLegendItemSeriesIndex() {
    DefaultCategoryDataset dataset0 = new DefaultCategoryDataset();
    dataset0.addValue(21.0, "R1", "C1");
    dataset0.addValue(22.0, "R2", "C1");
    DefaultCategoryDataset dataset1 = new DefaultCategoryDataset();
    dataset1.addValue(23.0, "R3", "C1");
    dataset1.addValue(24.0, "R4", "C1");
    dataset1.addValue(25.0, "R5", "C1");
    AreaRenderer r = new AreaRenderer();
    CategoryPlot plot = new CategoryPlot(dataset0, new CategoryAxis("x"),
            new NumberAxis("y"), r);
    plot.setDataset(1, dataset1);
    /*JFreeChart chart =*/ new JFreeChart(plot);
    LegendItem li = r.getLegendItem(1, 2);
    assertEquals("R5", li.getLabel());
    assertEquals(1, li.getDatasetIndex());
    assertEquals(2, li.getSeriesIndex());
}
 

/**
 * Some checks for the getLegendItem() method.
 */
@Test
public void testGetLegendItem() {
    DefaultBoxAndWhiskerCategoryDataset dataset
            = new DefaultBoxAndWhiskerCategoryDataset();
    List values = new ArrayList();
    values.add(new Double(1.10));
    values.add(new Double(1.45));
    values.add(new Double(1.33));
    values.add(new Double(1.23));
    dataset.add(values, "R1", "C1");
    BoxAndWhiskerRenderer r = new BoxAndWhiskerRenderer();
    CategoryPlot plot = new CategoryPlot(dataset, new CategoryAxis("x"),
            new NumberAxis("y"), r);
    /*JFreeChart chart =*/ new JFreeChart(plot);
    LegendItem li = r.getLegendItem(0, 0);
    assertNotNull(li);
    r.setSeriesVisibleInLegend(0, Boolean.FALSE);
    li = r.getLegendItem(0, 0);
    assertNull(li);
}
 

/**
 * Draws the bar for a single (series, category) data item.
 *
 * @param g2  the graphics device.
 * @param state  the renderer state.
 * @param dataArea  the data area.
 * @param plot  the plot.
 * @param domainAxis  the domain axis.
 * @param rangeAxis  the range axis.
 * @param dataset  the dataset.
 * @param row  the row index (zero-based).
 * @param column  the column index (zero-based).
 * @param pass  the pass index.
 */
public void drawItem(Graphics2D g2, CategoryItemRendererState state,
        Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis,
        ValueAxis rangeAxis, CategoryDataset dataset, int row, int column,
        boolean selected, int pass) {

     if (dataset instanceof GanttCategoryDataset) {
         GanttCategoryDataset gcd = (GanttCategoryDataset) dataset;
         drawTasks(g2, state, dataArea, plot, domainAxis, rangeAxis, gcd,
                 row, column, selected);
     }
     else {  // let the superclass handle it...
         super.drawItem(g2, state, dataArea, plot, domainAxis, rangeAxis,
                 dataset, row, column, selected, pass);
     }

 }
 

/**
 * Some checks for the paint lookup mechanism.
 */
@Test
public void testPaintLookup() {
    BarRenderer r = new BarRenderer();
    assertEquals(Color.blue, r.getBasePaint());

    // first check that autoPopulate==false works as expected
    r.setAutoPopulateSeriesPaint(false);
    assertEquals(Color.blue, r.lookupSeriesPaint(0));
    assertNull(r.getSeriesPaint(0));

    // now check autoPopulate==true
    r.setAutoPopulateSeriesPaint(true);
    /*CategoryPlot plot =*/ new CategoryPlot(null, new CategoryAxis(
            "Category"), new NumberAxis("Value"), r);
    assertEquals(DefaultDrawingSupplier.DEFAULT_PAINT_SEQUENCE[0],
            r.lookupSeriesPaint(0));
    assertNotNull(r.getSeriesPaint(0));
}
 

/**
 * A check for the datasetIndex and seriesIndex fields in the LegendItem
 * returned by the getLegendItem() method.
 */
@Test
public void testGetLegendItemSeriesIndex() {
    DefaultCategoryDataset dataset0 = new DefaultCategoryDataset();
    dataset0.addValue(21.0, "R1", "C1");
    dataset0.addValue(22.0, "R2", "C1");
    DefaultCategoryDataset dataset1 = new DefaultCategoryDataset();
    dataset1.addValue(23.0, "R3", "C1");
    dataset1.addValue(24.0, "R4", "C1");
    dataset1.addValue(25.0, "R5", "C1");
    CategoryStepRenderer r = new CategoryStepRenderer();
    CategoryPlot plot = new CategoryPlot(dataset0, new CategoryAxis("x"),
            new NumberAxis("y"), r);
    plot.setDataset(1, dataset1);
    /*JFreeChart chart =*/ new JFreeChart(plot);
    LegendItem li = r.getLegendItem(1, 2);
    assertEquals("R5", li.getLabel());
    assertEquals(1, li.getDatasetIndex());
    assertEquals(2, li.getSeriesIndex());
}
 

/**
 * Sets a domain axis and, if requested, sends a {@link PlotChangeEvent} to 
 * all registered listeners.
 *
 * @param index  the axis index.
 * @param axis  the axis (<code>null</code> permitted).
 * @param notify  notify listeners?
 */
public void setDomainAxis(int index, CategoryAxis axis, boolean notify) {
    CategoryAxis existing = (CategoryAxis) this.domainAxes.get(index);
    if (existing != null) {
        existing.removeChangeListener(this);
    }
    if (axis != null) {
        axis.setPlot(this);
    }
    this.domainAxes.set(index, axis);
    if (axis != null) {
        axis.configure();
        axis.addChangeListener(this);
    }
    if (notify) {
        notifyListeners(new PlotChangeEvent(this));
    }
}
 

@Test 
public void testGetRendererForDataset2() {
    CategoryDataset dataset = new DefaultCategoryDataset();
    CategoryAxis xAxis = new CategoryAxis("X");
    NumberAxis yAxis = new NumberAxis("Y");
    CategoryItemRenderer renderer = new BarRenderer();
    CategoryPlot plot = new CategoryPlot(dataset, xAxis, yAxis, renderer);

    // add a second dataset
    DefaultCategoryDataset dataset2 = new DefaultCategoryDataset();
    dataset2.setValue(1, "R1", "C1");
    plot.setDataset(99, dataset2);
   
    // by default, the renderer with index 0 is used
    assertEquals(renderer, plot.getRendererForDataset(dataset2));
    
    // add a second renderer with the same index as dataset2, now it will
    // be used
    CategoryItemRenderer renderer2 = new LineAndShapeRenderer();
    plot.setRenderer(99, renderer2);
    assertEquals(renderer2, plot.getRendererForDataset(dataset2));
}
 

/**
 * Sets a domain axis and, if requested, sends a {@link PlotChangeEvent} to 
 * all registered listeners.
 *
 * @param index  the axis index.
 * @param axis  the axis (<code>null</code> permitted).
 * @param notify  notify listeners?
 */
public void setDomainAxis(int index, CategoryAxis axis, boolean notify) {
    CategoryAxis existing = (CategoryAxis) this.domainAxes.get(index);
    if (existing != null) {
        existing.removeChangeListener(this);
    }
    if (axis != null) {
        axis.setPlot(this);
    }
    this.domainAxes.set(index, axis);
    if (axis != null) {
        axis.configure();
        axis.addChangeListener(this);
    }
    if (notify) {
        notifyListeners(new PlotChangeEvent(this));
    }
}
 

/**
 * Draws the chart with a <code>null</code> info object to make sure that 
 * no exceptions are thrown (particularly by code in the renderer).
 */
public void testDrawWithNullInfo() {
    boolean success = false;
    try {
        DefaultStatisticalCategoryDataset dataset 
            = new DefaultStatisticalCategoryDataset();
        dataset.add(1.0, 2.0, "S1", "C1");
        dataset.add(3.0, 4.0, "S1", "C2");
        CategoryPlot plot = new CategoryPlot(dataset, 
                new CategoryAxis("Category"), new NumberAxis("Value"), 
                new StatisticalLineAndShapeRenderer());
        JFreeChart chart = new JFreeChart(plot);
        /* BufferedImage image = */ chart.createBufferedImage(300, 200, 
                null);
        success = true;
    }
    catch (NullPointerException e) {
        e.printStackTrace();
        success = false;
    }
    assertTrue(success);
}
 

/**
 * Calculates the bar width and stores it in the renderer state.
 *
 * @param plot  the plot.
 * @param dataArea  the data area.
 * @param rendererIndex  the renderer index.
 * @param state  the renderer state.
 */
@Override
protected void calculateBarWidth(CategoryPlot plot, Rectangle2D dataArea,
        int rendererIndex, CategoryItemRendererState state) {

    // calculate the bar width
    CategoryAxis domainAxis = getDomainAxis(plot, rendererIndex);
    CategoryDataset data = plot.getDataset(rendererIndex);
    if (data != null) {
        PlotOrientation orientation = plot.getOrientation();
        double space = 0.0;
        if (orientation == PlotOrientation.HORIZONTAL) {
            space = dataArea.getHeight();
        }
        else if (orientation == PlotOrientation.VERTICAL) {
            space = dataArea.getWidth();
        }
        double maxWidth = space * getMaximumBarWidth();
        int columns = data.getColumnCount();
        double categoryMargin = 0.0;
        if (columns > 1) {
            categoryMargin = domainAxis.getCategoryMargin();
        }

        double used = space * (1 - domainAxis.getLowerMargin()
                                 - domainAxis.getUpperMargin()
                                 - categoryMargin);
        if (columns > 0) {
            state.setBarWidth(Math.min(used / columns, maxWidth));
        }
        else {
            state.setBarWidth(Math.min(used, maxWidth));
        }
    }

}
 

/**
 * Draws the gridlines for the plot.
 *
 * @param g2  the graphics device.
 * @param dataArea  the area inside the axes.
 * 
 * @see #drawRangeGridlines(Graphics2D, Rectangle2D, List)
 */
protected void drawDomainGridlines(Graphics2D g2, Rectangle2D dataArea) {

    // draw the domain grid lines, if any...
    if (isDomainGridlinesVisible()) {
        CategoryAnchor anchor = getDomainGridlinePosition();
        RectangleEdge domainAxisEdge = getDomainAxisEdge();
        Stroke gridStroke = getDomainGridlineStroke();
        Paint gridPaint = getDomainGridlinePaint();
        if ((gridStroke != null) && (gridPaint != null)) {
            // iterate over the categories
            CategoryDataset data = getDataset();
            if (data != null) {
                CategoryAxis axis = getDomainAxis();
                if (axis != null) {
                    int columnCount = data.getColumnCount();
                    for (int c = 0; c < columnCount; c++) {
                        double xx = axis.getCategoryJava2DCoordinate(
                                anchor, c, columnCount, dataArea, 
                                domainAxisEdge);
                        CategoryItemRenderer renderer1 = getRenderer();
                        if (renderer1 != null) {
                            renderer1.drawDomainGridline(g2, this, 
                                    dataArea, xx);
                        }
                    }
                }
            }
        }
    }
}
 

/**
 * Configures the domain axes.
 */
public void configureDomainAxes() {
    for (int i = 0; i < this.domainAxes.size(); i++) {
        CategoryAxis axis = (CategoryAxis) this.domainAxes.get(i);
        if (axis != null) {
            axis.configure();
        }
    }
}
 

/**
 * Creates a Gantt chart using the supplied attributes plus default values 
 * where required.  The chart object returned by this method uses a 
 * {@link CategoryPlot} instance as the plot, with a {@link CategoryAxis} 
 * for the domain axis, a {@link DateAxis} as the range axis, and a 
 * {@link GanttRenderer} as the renderer.
 *
 * @param title  the chart title (<code>null</code> permitted).
 * @param categoryAxisLabel  the label for the category axis 
 *                           (<code>null</code> permitted).
 * @param dateAxisLabel  the label for the date axis 
 *                       (<code>null</code> permitted).
 * @param dataset  the dataset for the chart (<code>null</code> permitted).
 * @param legend  a flag specifying whether or not a legend is required.
 * @param tooltips  configure chart to generate tool tips?
 * @param urls  configure chart to generate URLs?
 *
 * @return A Gantt chart.
 */
public static JFreeChart createGanttChart(String title,
                                          String categoryAxisLabel,
                                          String dateAxisLabel,
                                          IntervalCategoryDataset dataset,
                                          boolean legend,
                                          boolean tooltips,
                                          boolean urls) {

    CategoryAxis categoryAxis = new CategoryAxis(categoryAxisLabel);
    DateAxis dateAxis = new DateAxis(dateAxisLabel);

    CategoryItemRenderer renderer = new GanttRenderer();
    if (tooltips) {
        renderer.setBaseToolTipGenerator(
                new IntervalCategoryToolTipGenerator(
                "{3} - {4}", DateFormat.getDateInstance()));
    }
    if (urls) {
        renderer.setBaseItemURLGenerator(
                new StandardCategoryURLGenerator());
    }

    CategoryPlot plot = new CategoryPlot(dataset, categoryAxis, dateAxis, 
            renderer);
    plot.setOrientation(PlotOrientation.HORIZONTAL);
    JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT,
            plot, legend);

    return chart;

}
 

/**
 * Returns the domain axis for a dataset.  You can change the axis for a
 * dataset using the {@link #mapDatasetToDomainAxis(int, int)} method.
 *
 * @param index  the dataset index (must be >= 0).
 *
 * @return The domain axis.
 *
 * @see #mapDatasetToDomainAxis(int, int)
 */
public CategoryAxis getDomainAxisForDataset(int index) {
    ParamChecks.requireNonNegative(index, "index");
    CategoryAxis axis;
    List axisIndices = (List) this.datasetToDomainAxesMap.get(
            new Integer(index));
    if (axisIndices != null) {
        // the first axis in the list is used for data <--> Java2D
        Integer axisIndex = (Integer) axisIndices.get(0);
        axis = getDomainAxis(axisIndex.intValue());
    } else {
        axis = getDomainAxis(0);
    }
    return axis;
}
 

/**
 * Clears the domain axes from the plot and sends a {@link PlotChangeEvent}
 * to all registered listeners.
 */
public void clearDomainAxes() {
    for (int i = 0; i < this.domainAxes.size(); i++) {
        CategoryAxis axis = (CategoryAxis) this.domainAxes.get(i);
        if (axis != null) {
            axis.removeChangeListener(this);
        }
    }
    this.domainAxes.clear();
    notifyListeners(new PlotChangeEvent(this));
}
 

/**
 * A test for bug report 1169972.
 */
public void test1169972() {
    CategoryPlot plot = new CategoryPlot(null, null, null, null);
    plot.setDomainAxis(new CategoryAxis("C"));
    plot.setRangeAxis(new NumberAxis("Y"));
    plot.setRenderer(new BarRenderer());
    plot.setDataset(new DefaultCategoryDataset());
    assertTrue(plot != null);
}
 

/**
 * Applies the attributes for this theme to a {@link CategoryAxis}.
 *
 * @param axis  the axis (<code>null</code> not permitted).
 */
protected void applyToCategoryAxis(CategoryAxis axis) {
    axis.setLabelFont(this.largeFont);
    axis.setLabelPaint(this.axisLabelPaint);
    axis.setTickLabelFont(this.regularFont);
    axis.setTickLabelPaint(this.tickLabelPaint);
    if (axis instanceof SubCategoryAxis) {
        SubCategoryAxis sca = (SubCategoryAxis) axis;
        sca.setSubLabelFont(this.regularFont);
        sca.setSubLabelPaint(this.tickLabelPaint);
    }
}
 

/**
 * Creates a stacked area chart with default settings.  The chart object
 * returned by this method uses a {@link CategoryPlot} instance as the
 * plot, with a {@link CategoryAxis} for the domain axis, a
 * {@link NumberAxis} as the range axis, and a {@link StackedAreaRenderer}
 * as the renderer.
 *
 * @param title  the chart title (<code>null</code> permitted).
 * @param categoryAxisLabel  the label for the category axis
 *                           (<code>null</code> permitted).
 * @param valueAxisLabel  the label for the value axis (<code>null</code>
 *                        permitted).
 * @param dataset  the dataset for the chart (<code>null</code> permitted).
 * @param orientation  the plot orientation (horizontal or vertical)
 *                     (<code>null</code> not permitted).
 * @param legend  a flag specifying whether or not a legend is required.
 * @param tooltips  configure chart to generate tool tips?
 * @param urls  configure chart to generate URLs?
 *
 * @return A stacked area chart.
 */
public static JFreeChart createStackedAreaChart(String title,
        String categoryAxisLabel, String valueAxisLabel,
        CategoryDataset dataset, PlotOrientation orientation,
        boolean legend, boolean tooltips, boolean urls) {

    ParamChecks.nullNotPermitted(orientation, "orientation");
    CategoryAxis categoryAxis = new CategoryAxis(categoryAxisLabel);
    categoryAxis.setCategoryMargin(0.0);
    ValueAxis valueAxis = new NumberAxis(valueAxisLabel);

    StackedAreaRenderer renderer = new StackedAreaRenderer();
    if (tooltips) {
        renderer.setBaseToolTipGenerator(
                new StandardCategoryToolTipGenerator());
    }
    if (urls) {
        renderer.setBaseItemURLGenerator(
                new StandardCategoryURLGenerator());
    }

    CategoryPlot plot = new CategoryPlot(dataset, categoryAxis, valueAxis,
            renderer);
    plot.setOrientation(orientation);
    JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT,
            plot, legend);
    currentTheme.apply(chart);
    return chart;

}