Package org.jfree.chart.annotations

Examples of org.jfree.chart.annotations.XYLineAnnotation

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    /**
     * Confirm that the equals method can distinguish all the required fields.
     */
    public void testEquals() {
        Stroke stroke = new BasicStroke(2.0f);
        XYLineAnnotation a1 = new XYLineAnnotation(
            10.0, 20.0, 100.0, 200.0, stroke, Color.blue
        );
        XYLineAnnotation a2 = new XYLineAnnotation(
            10.0, 20.0, 100.0, 200.0, stroke, Color.blue
        );
        assertTrue(a1.equals(a2));
        assertTrue(a2.equals(a1));
       
        a1 = new XYLineAnnotation(11.0, 20.0, 100.0, 200.0, stroke, Color.blue);
        assertFalse(a1.equals(a2));
        a2 = new XYLineAnnotation(11.0, 20.0, 100.0, 200.0, stroke, Color.blue);
        assertTrue(a1.equals(a2));

        a1 = new XYLineAnnotation(11.0, 21.0, 100.0, 200.0, stroke, Color.blue);
        assertFalse(a1.equals(a2));
        a2 = new XYLineAnnotation(11.0, 21.0, 100.0, 200.0, stroke, Color.blue);
        assertTrue(a1.equals(a2));
   
        a1 = new XYLineAnnotation(11.0, 21.0, 101.0, 200.0, stroke, Color.blue);
        assertFalse(a1.equals(a2));
        a2 = new XYLineAnnotation(11.0, 21.0, 101.0, 200.0, stroke, Color.blue);
        assertTrue(a1.equals(a2));

        a1 = new XYLineAnnotation(11.0, 21.0, 101.0, 201.0, stroke, Color.blue);
        assertFalse(a1.equals(a2));
        a2 = new XYLineAnnotation(11.0, 21.0, 101.0, 201.0, stroke, Color.blue);
        assertTrue(a1.equals(a2));

        Stroke stroke2 = new BasicStroke(0.99f);
        a1 = new XYLineAnnotation(11.0, 21.0, 101.0, 200.0, stroke2, Color.blue);
        assertFalse(a1.equals(a2));
        a2 = new XYLineAnnotation(11.0, 21.0, 101.0, 200.0, stroke2, Color.blue);
        assertTrue(a1.equals(a2));

        GradientPaint g1 = new GradientPaint(1.0f, 2.0f, Color.red,
                3.0f, 4.0f, Color.white);
        GradientPaint g2 = new GradientPaint(1.0f, 2.0f, Color.red,
                3.0f, 4.0f, Color.white);
        a1 = new XYLineAnnotation(11.0, 21.0, 101.0, 200.0, stroke2, g1);
        assertFalse(a1.equals(a2));
        a2 = new XYLineAnnotation(11.0, 21.0, 101.0, 200.0, stroke2, g2);
        assertTrue(a1.equals(a2));
    }
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    /**
     * Two objects that are equal are required to return the same hashCode.
     */
    public void testHashCode() {
        Stroke stroke = new BasicStroke(2.0f);
        XYLineAnnotation a1 = new XYLineAnnotation(
            10.0, 20.0, 100.0, 200.0, stroke, Color.blue
        );
        XYLineAnnotation a2 = new XYLineAnnotation(
            10.0, 20.0, 100.0, 200.0, stroke, Color.blue
        );
        assertTrue(a1.equals(a2));
        int h1 = a1.hashCode();
        int h2 = a2.hashCode();
        assertEquals(h1, h2);
    }
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    /**
     * Confirm that cloning works.
     */
    public void testCloning() {
        Stroke stroke = new BasicStroke(2.0f);
        XYLineAnnotation a1 = new XYLineAnnotation(
            10.0, 20.0, 100.0, 200.0, stroke, Color.blue
        );
        XYLineAnnotation a2 = null;
        try {
            a2 = (XYLineAnnotation) a1.clone();
        }
        catch (CloneNotSupportedException e) {
            System.err.println("Failed to clone.");
        }
        assertTrue(a1 != a2);
        assertTrue(a1.getClass() == a2.getClass());
        assertTrue(a1.equals(a2));
    }
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     * Serialize an instance, restore it, and check for equality.
     */
    public void testSerialization() {

        Stroke stroke = new BasicStroke(2.0f);
        XYLineAnnotation a1 = new XYLineAnnotation(
            10.0, 20.0, 100.0, 200.0, stroke, Color.blue
        );
        XYLineAnnotation a2 = null;

        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(a1);
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