Java Code Examples for org.jfree.chart.JFreeChart#draw()

/**
 * Check that only one chart change event is generated by a change to a
 * subplot.
 */
@Test
public void testNotification() {
    CombinedRangeXYPlot plot = createPlot();
    JFreeChart chart = new JFreeChart(plot);
    chart.addChangeListener(this);
    XYPlot subplot1 = (XYPlot) plot.getSubplots().get(0);
    NumberAxis xAxis = (NumberAxis) subplot1.getDomainAxis();
    xAxis.setAutoRangeIncludesZero(!xAxis.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());
}
 

/**
 * Draws a pie chart where the label generator returns null.
 */
@Test
public void testDrawWithNullDataset() {
    JFreeChart chart = ChartFactory.createPieChart3D("Test", null, true,
            false, false);
    boolean success = false;
    try {
        BufferedImage image = new BufferedImage(200 , 100,
                BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = image.createGraphics();
        chart.draw(g2, new Rectangle2D.Double(0, 0, 200, 100), null, null);
        g2.dispose();
        success = true;
    }
    catch (Exception e) {
        success = false;
    }
    assertTrue(success);
}
 

/**
 * Draws the chart with a single range.  At one point, this caused a null
 * pointer exception (fixed now).
 */
public void testDrawWithNullInfo() {
    boolean success = false;
    MeterPlot plot = new MeterPlot(new DefaultValueDataset(60.0));
    plot.addInterval(new MeterInterval("Normal", new Range(0.0, 80.0)));
    JFreeChart chart = new JFreeChart(plot);
    try {
        BufferedImage image = new BufferedImage(200, 100, 
                BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = image.createGraphics();
        chart.draw(g2, new Rectangle2D.Double(0, 0, 200, 100), null, null);
        g2.dispose();
        success = true;
    }
    catch (Exception e) {
        success = false;   
    }
    assertTrue(success);
}
 

/**
 * Check that only one chart change event is generated by a change to a
 * subplot.
 */
@Test
public void testNotification() {
    CombinedDomainCategoryPlot plot = createPlot();
    JFreeChart chart = new JFreeChart(plot);
    chart.addChangeListener(this);
    CategoryPlot subplot1 = (CategoryPlot) 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());
}
 

/**
 * A test for drawing a plot where a series has zero items.  With
 * JFreeChart 1.0.5+cvs this was throwing an exception at one point.
 */
@Test
public void testDrawSeriesWithZeroItems() {
    DefaultXYDataset dataset = new DefaultXYDataset();
    dataset.addSeries("Series 1", new double[][] {{1.0, 2.0}, {3.0, 4.0}});
    dataset.addSeries("Series 2", new double[][] {{}, {}});
    JFreeChart chart = ChartFactory.createXYLineChart("Title", "X", "Y",
            dataset, PlotOrientation.VERTICAL, true, false, false);
    try {
        BufferedImage image = new BufferedImage(200 , 100,
                BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = image.createGraphics();
        chart.draw(g2, new Rectangle2D.Double(0, 0, 200, 100), null, null);
        g2.dispose();
    }
    catch (Exception e) {
        fail("No exception should be thrown.");
    }
}
 

/**
 * Check that only one chart change event is generated by a change to a
 * subplot.
 */
@Test
public void testNotification() {
    CombinedRangeCategoryPlot plot = createPlot();
    JFreeChart chart = new JFreeChart(plot);
    chart.addChangeListener(this);
    CategoryPlot subplot1 = (CategoryPlot) 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());
}
 

/**
 * Check that only one chart change event is generated by a change to a
 * subplot.
 */
@Test
public void testNotification() {
    CombinedRangeXYPlot plot = createPlot();
    JFreeChart chart = new JFreeChart(plot);
    chart.addChangeListener(this);
    XYPlot subplot1 = (XYPlot) plot.getSubplots().get(0);
    NumberAxis xAxis = (NumberAxis) subplot1.getDomainAxis();
    xAxis.setAutoRangeIncludesZero(!xAxis.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());
}
 

public void paintDeviationChart(Graphics graphics, int width, int height) {
	prepareData();

	JFreeChart chart = createChart(this.dataset);

	// set the background color for the chart...
	chart.setBackgroundPaint(Color.white);

	// legend settings
	LegendTitle legend = chart.getLegend();
	if (legend != null) {
		legend.setPosition(RectangleEdge.TOP);
		legend.setFrame(BlockBorder.NONE);
		legend.setHorizontalAlignment(HorizontalAlignment.LEFT);
	}

	Rectangle2D drawRect = new Rectangle2D.Double(0, 0, width, height);
	chart.draw((Graphics2D) graphics, drawRect);
}
 

/**
 * Check that only one chart change event is generated by a change to a
 * subplot.
 */
@Test
public void testNotification() {
    CombinedRangeXYPlot plot = createPlot();
    JFreeChart chart = new JFreeChart(plot);
    chart.addChangeListener(this);
    XYPlot subplot1 = (XYPlot) plot.getSubplots().get(0);
    NumberAxis xAxis = (NumberAxis) subplot1.getDomainAxis();
    xAxis.setAutoRangeIncludesZero(!xAxis.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());
}
 

/**
 * Draws the chart with a null info object to make sure that no exceptions 
 * are thrown.
 */
public void testDrawWithNullInfo() {
    DefaultCategoryDataset dataset = new DefaultCategoryDataset();
    dataset.addValue(35.0, "S1", "C1");
    dataset.addValue(45.0, "S1", "C2");
    dataset.addValue(55.0, "S1", "C3");
    dataset.addValue(15.0, "S1", "C4");
    dataset.addValue(25.0, "S1", "C5");
    SpiderWebPlot plot = new SpiderWebPlot(dataset);
    JFreeChart chart = new JFreeChart(plot);
    boolean success = false;
    try {
        BufferedImage image = new BufferedImage(200 , 100, 
                BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = image.createGraphics();
        chart.draw(g2, new Rectangle2D.Double(0, 0, 200, 100), null, null);
        g2.dispose();
        success = true;
    }
    catch (Exception e) {
        success = false;
    }
    assertTrue(success);
}
 

/**
 * Check that only one chart change event is generated by a change to a
 * subplot.
 */
@Test
public void testNotification() {
    CombinedRangeCategoryPlot plot = createPlot();
    JFreeChart chart = new JFreeChart(plot);
    chart.addChangeListener(this);
    CategoryPlot subplot1 = (CategoryPlot) 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());
}
 

/**
 * Check that only one chart change event is generated by a change to a
 * subplot.
 */
@Test
public void testNotification() {
    CombinedDomainCategoryPlot plot = createPlot();
    JFreeChart chart = new JFreeChart(plot);
    chart.addChangeListener(this);
    CategoryPlot subplot1 = (CategoryPlot) 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());
}
 

/**
 * A test for bug report 2909215.
 */
@Test
public void test2909215() {
    DefaultBoxAndWhiskerXYDataset d1 = new DefaultBoxAndWhiskerXYDataset(
            "Series");
    d1.add(new Date(1L), new BoxAndWhiskerItem(new Double(1.0),
            new Double(2.0), new Double(3.0), new Double(4.0),
            new Double(5.0), new Double(6.0), null, null, null));
    JFreeChart chart = ChartFactory.createBoxAndWhiskerChart("Title", "X",
            "Y", d1, true);
    try {
        BufferedImage image = new BufferedImage(400, 200,
                BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = image.createGraphics();
        chart.draw(g2, new Rectangle2D.Double(0, 0, 400, 200), null, null);
        g2.dispose();
    }
    catch (Exception e) {
        fail("No exception should be thrown.");
    }
}
 

/**
 * Draws a pie chart where the label generator returns null.
 */
public void testDrawWithNullDataset() {
    JFreeChart chart = ChartFactory.createPieChart3D("Test", null, true, 
            false, false);
    boolean success = false;
    try {
        BufferedImage image = new BufferedImage(200 , 100, 
                BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = image.createGraphics();
        chart.draw(g2, new Rectangle2D.Double(0, 0, 200, 100), null, null);
        g2.dispose();
        success = true;
    }
    catch (Exception e) {
        success = false;
    }
    assertTrue(success);
}
 

/**
 * Check that only one chart change event is generated by a change to a
 * subplot.
 */
public void testNotification() {
    CombinedDomainCategoryPlot plot = createPlot();
    JFreeChart chart = new JFreeChart(plot);
    chart.addChangeListener(this);
    CategoryPlot subplot1 = (CategoryPlot) 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());
}
 

/**
 * A test for drawing a plot where a series has zero items.  With
 * JFreeChart 1.0.5+cvs this was throwing an exception at one point.
 */
@Test
public void testDrawSeriesWithZeroItems() {
    DefaultXYDataset dataset = new DefaultXYDataset();
    dataset.addSeries("Series 1", new double[][] {{1.0, 2.0}, {3.0, 4.0}});
    dataset.addSeries("Series 2", new double[][] {{}, {}});
    JFreeChart chart = ChartFactory.createXYLineChart("Title", "X", "Y",
            dataset, PlotOrientation.VERTICAL, true, false, false);
    try {
        BufferedImage image = new BufferedImage(200 , 100,
                BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = image.createGraphics();
        chart.draw(g2, new Rectangle2D.Double(0, 0, 200, 100), null, null);
        g2.dispose();
    }
    catch (Exception e) {
        fail("No exception should be thrown.");
    }
}
 

/**
 * A test for drawing a plot where a series has zero items.  With
 * JFreeChart 1.0.5+cvs this was throwing an exception at one point.
 */
public void testDrawSeriesWithZeroItems() {
    DefaultXYDataset dataset = new DefaultXYDataset();
    dataset.addSeries("Series 1", new double[][] {{1.0, 2.0}, {3.0, 4.0}});
    dataset.addSeries("Series 2", new double[][] {{}, {}});
    JFreeChart chart = ChartFactory.createXYLineChart("Title", "X", "Y",
            dataset, true);
    boolean success = false;
    try {
        BufferedImage image = new BufferedImage(200 , 100,
                BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = image.createGraphics();
        chart.draw(g2, new Rectangle2D.Double(0, 0, 200, 100), null, null);
        g2.dispose();
        success = true;
    }
    catch (Exception e) {
        e.printStackTrace();
        success = false;
    }
    assertTrue(success);
}
 

/**
 * A test for bug 1654215 (where a renderer is added to the plot without
 * a corresponding dataset and it throws an exception at drawing time).
 */
public void test1654215() {
    DefaultXYDataset dataset = new DefaultXYDataset();
    JFreeChart chart = ChartFactory.createXYLineChart("Title", "X", "Y",
            dataset, true);
    XYPlot plot = (XYPlot) chart.getPlot();
    plot.setRenderer(1, new XYLineAndShapeRenderer());
    boolean success = false;
    try {
        BufferedImage image = new BufferedImage(200 , 100,
                BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = image.createGraphics();
        chart.draw(g2, new Rectangle2D.Double(0, 0, 200, 100), null, null);
        g2.dispose();
        success = true;
    }
    catch (Exception e) {
        e.printStackTrace();
        success = false;
    }
    assertTrue(success);
}
 

/**
 * A check for bug 1572478 (for the vertical orientation).
 */
public void testBug1572478Vertical() {
    DefaultBoxAndWhiskerCategoryDataset dataset
            = new DefaultBoxAndWhiskerCategoryDataset() {

        public Number getQ1Value(int row, int column) {
            return null;
        }

        public Number getQ1Value(Comparable rowKey, Comparable columnKey) {
            return null;
        }
    };
    List values = new ArrayList();
    values.add(new Double(1.0));
    values.add(new Double(10.0));
    values.add(new Double(100.0));
    dataset.add(values, "row", "column");
    CategoryPlot plot = new CategoryPlot(dataset, new CategoryAxis("x"),
            new NumberAxis("y"), new BoxAndWhiskerRenderer());
    JFreeChart chart = new JFreeChart(plot);
    boolean success = false;

    try {
        BufferedImage image = new BufferedImage(200 , 100,
                BufferedImage.TYPE_INT_RGB);
        BufferedImageRenderingSource birs 
                = new BufferedImageRenderingSource(image);
        ChartRenderingInfo info = new ChartRenderingInfo();
        info.setRenderingSource(birs);
        Graphics2D g2 = image.createGraphics();
        chart.draw(g2, new Rectangle2D.Double(0, 0, 200, 100), null,
                info);
        g2.dispose();
        success = true;
    }
    catch (Exception e) {
        success = false;
    }

    assertTrue(success);

}
 

/**
 * A check for bug 1572478 (for the vertical orientation).
 */
@Test
public void testBug1572478Vertical() {
    DefaultBoxAndWhiskerCategoryDataset dataset
            = new DefaultBoxAndWhiskerCategoryDataset() {

        @Override
        public Number getQ1Value(int row, int column) {
            return null;
        }

        @Override
        public Number getQ1Value(Comparable rowKey, Comparable columnKey) {
            return null;
        }
    };
    List values = new ArrayList();
    values.add(new Double(1.0));
    values.add(new Double(10.0));
    values.add(new Double(100.0));
    dataset.add(values, "row", "column");
    CategoryPlot plot = new CategoryPlot(dataset, new CategoryAxis("x"),
            new NumberAxis("y"), new BoxAndWhiskerRenderer());
    JFreeChart chart = new JFreeChart(plot);
    boolean success;

    try {
        BufferedImage image = new BufferedImage(200 , 100,
                BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = image.createGraphics();
        chart.draw(g2, new Rectangle2D.Double(0, 0, 200, 100), null,
                new ChartRenderingInfo());
        g2.dispose();
        success = true;
    }
    catch (Exception e) {
        success = false;
    }

    assertTrue(success);

}