Examples of org.jfree.chart.title.LegendTitle

org.jfree.chart.title.LegendTitle
A chart title that displays a legend for the data in the chart.
The title can be populated with legend items manually, or you can assign a reference to the plot, in which case the legend items will be automatically created to match the dataset(s).

    /**
     * Two objects that are equal are required to return the same hashCode. 
     */
    public void testHashcode() {
        XYPlot plot1 = new XYPlot();
        LegendTitle t1 = new LegendTitle(plot1);
        LegendTitle t2 = new LegendTitle(plot1);
        assertTrue(t1.equals(t2));
        int h1 = t1.hashCode();
        int h2 = t2.hashCode();
        assertEquals(h1, h2);
    }

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    /**
     * Confirm that cloning works.
     */
    public void testCloning() {
        XYPlot plot = new XYPlot();
        LegendTitle t1 = new LegendTitle(plot);
        t1.setBackgroundPaint(
            new GradientPaint(1.0f, 2.0f, Color.red, 3.0f, 4.0f, Color.yellow)
        );
        LegendTitle t2 = null;
        try {
            t2 = (LegendTitle) t1.clone();
        }
        catch (CloneNotSupportedException e) {
            System.err.println("Failed to clone.");
        }
        assertTrue(t1 != t2);
        assertTrue(t1.getClass() == t2.getClass());
        assertTrue(t1.equals(t2));
    }

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


        XYPlot plot = new XYPlot();
        LegendTitle t1 = new LegendTitle(plot);
        LegendTitle t2 = null;


        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(t1);
            out.close();


            ObjectInput in = new ObjectInputStream(
                new ByteArrayInputStream(buffer.toByteArray())
            );
            t2 = (LegendTitle) in.readObject();
            in.close();
        }
        catch (Exception e) {
            fail(e.toString());
        }
        assertTrue(t1.equals(t2));
        assertTrue(t2.getSources()[0].equals(plot));
    }

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        }
        catch (Exception e) {
            e.printStackTrace();
        }
        assertEquals(c1, c2);
        LegendTitle lt2 = c2.getLegend();
        assertTrue(lt2.getSources()[0] == c2.getPlot());
    }

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        this.subtitles = new ArrayList();


        // create a legend, if requested...
        if (createLegend) {
            LegendTitle legend = new LegendTitle(this.plot);
            legend.setMargin(new RectangleInsets(1.0, 1.0, 1.0, 1.0));
            legend.setBorder(new BlockBorder());
            legend.setBackgroundPaint(Color.white);
            legend.setPosition(RectangleEdge.BOTTOM);
            this.subtitles.add(legend);
        }


        // add the chart title, if one has been specified...
        if (title != null) {

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