Package org.jfree.chart.plot.dial

Examples of org.jfree.chart.plot.dial.DialBackground

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    /**
     * Check the notification event mechanism for the dial background.
     */
    public void testBackgroundListener() {
        DialPlot p = new DialPlot();
        DialBackground b1 = new DialBackground(Color.red);
        p.setBackground(b1);
        p.addChangeListener(this);
        this.lastEvent = null;
        b1.setPaint(Color.blue);
        assertNotNull(this.lastEvent);

        DialBackground b2 = new DialBackground(Color.green);
        p.setBackground(b2);
        this.lastEvent = null;
        b1.setPaint(Color.red);
        assertNull(this.lastEvent);
        b2.setPaint(Color.red);
        assertNotNull(this.lastEvent);
    }
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    /**
     * Check the notification event mechanism for a layer.
     */
    public void testLayerListener() {
        DialPlot p = new DialPlot();
        DialBackground b1 = new DialBackground(Color.red);
        p.addLayer(b1);
        p.addChangeListener(this);
        this.lastEvent = null;
        b1.setPaint(Color.blue);
        assertNotNull(this.lastEvent);

        DialBackground b2 = new DialBackground(Color.green);
        p.addLayer(b2);
        this.lastEvent = null;
        b1.setPaint(Color.red);
        assertNotNull(this.lastEvent);
        b2.setPaint(Color.green);
        assertNotNull(this.lastEvent);

        p.removeLayer(b2);
        this.lastEvent = null;
        b2.setPaint(Color.red);
        assertNull(this.lastEvent);
    }
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    /**
     * Confirm that the equals method can distinguish all the required fields.
     */
    public void testEquals() {
        DialBackground b1 = new DialBackground();
        DialBackground b2 = new DialBackground();
        assertTrue(b1.equals(b2));

        // paint
        b1.setPaint(new GradientPaint(1.0f, 2.0f, Color.red, 3.0f, 4.0f,
                Color.yellow));
        assertFalse(b1.equals(b2));
        b2.setPaint(new GradientPaint(1.0f, 2.0f, Color.red, 3.0f, 4.0f,
                Color.yellow));
        assertTrue(b1.equals(b2));

        // gradient paint transformer
        b1.setGradientPaintTransformer(new StandardGradientPaintTransformer(
                GradientPaintTransformType.CENTER_VERTICAL));
        assertFalse(b1.equals(b2));
        b2.setGradientPaintTransformer(new StandardGradientPaintTransformer(
                GradientPaintTransformType.CENTER_VERTICAL));
        assertTrue(b1.equals(b2));

        // check an inherited attribute
        b1.setVisible(false);
        assertFalse(b1.equals(b2));
        b2.setVisible(false);
        assertTrue(b1.equals(b2));

    }
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    /**
     * Two objects that are equal are required to return the same hashCode.
     */
    public void testHashCode() {
        DialBackground b1 = new DialBackground(Color.red);
        DialBackground b2 = new DialBackground(Color.red);
        assertTrue(b1.equals(b2));
        int h1 = b1.hashCode();
        int h2 = b2.hashCode();
        assertEquals(h1, h2);
    }
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    /**
     * Confirm that cloning works.
     */
    public void testCloning() {
        // test default instance
        DialBackground b1 = new DialBackground();
        DialBackground b2 = null;
        try {
            b2 = (DialBackground) b1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(b1 != b2);
        assertTrue(b1.getClass() == b2.getClass());
        assertTrue(b1.equals(b2));

        // test a customised instance
        b1 = new DialBackground();
        b1.setPaint(new GradientPaint(1.0f, 2.0f, Color.red, 3.0f, 4.0f,
                Color.green));
        b1.setGradientPaintTransformer(new StandardGradientPaintTransformer(
                GradientPaintTransformType.CENTER_VERTICAL));
        b2 = null;
        try {
            b2 = (DialBackground) b1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(b1 != b2);
        assertTrue(b1.getClass() == b2.getClass());
        assertTrue(b1.equals(b2));

        // check that the listener lists are independent
        MyDialLayerChangeListener l1 = new MyDialLayerChangeListener();
        b1.addChangeListener(l1);
        assertTrue(b1.hasListener(l1));
        assertFalse(b2.hasListener(l1));
    }
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    /**
     * Serialize an instance, restore it, and check for equality.
     */
    public void testSerialization() {
        // test a default instance
        DialBackground b1 = new DialBackground();
        DialBackground b2 = null;

        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(b1);
            out.close();

            ObjectInput in = new ObjectInputStream(
                    new ByteArrayInputStream(buffer.toByteArray()));
            b2 = (DialBackground) in.readObject();
            in.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        assertEquals(b1, b2);

        // test a customised instance
        b1 = new DialBackground();
        b1.setPaint(new GradientPaint(1.0f, 2.0f, Color.red, 3.0f, 4.0f,
                Color.green));
        b1.setGradientPaintTransformer(new StandardGradientPaintTransformer(
                GradientPaintTransformType.CENTER_VERTICAL));
        b2 = null;
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        DialPlot p1 = new DialPlot();
        DialPlot p2 = new DialPlot();
        assertTrue(p1.equals(p2));

        // background
        p1.setBackground(new DialBackground(Color.green));
        assertFalse(p1.equals(p2));
        p2.setBackground(new DialBackground(Color.green));
        assertTrue(p1.equals(p2));

        p1.setBackground(null);
        assertFalse(p1.equals(p2));
        p2.setBackground(null);
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    /**
     * Check the notification event mechanism for the dial background.
     */
    public void testBackgroundListener() {
        DialPlot p = new DialPlot();
        DialBackground b1 = new DialBackground(Color.red);
        p.setBackground(b1);
        p.addChangeListener(this);
        this.lastEvent = null;
        b1.setPaint(Color.blue);
        assertNotNull(this.lastEvent);

        DialBackground b2 = new DialBackground(Color.green);
        p.setBackground(b2);
        this.lastEvent = null;
        b1.setPaint(Color.red);
        assertNull(this.lastEvent);
        b2.setPaint(Color.red);
        assertNotNull(this.lastEvent);
    }
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    /**
     * Check the notification event mechanism for a layer.
     */
    public void testLayerListener() {
        DialPlot p = new DialPlot();
        DialBackground b1 = new DialBackground(Color.red);
        p.addLayer(b1);
        p.addChangeListener(this);
        this.lastEvent = null;
        b1.setPaint(Color.blue);
        assertNotNull(this.lastEvent);

        DialBackground b2 = new DialBackground(Color.green);
        p.addLayer(b2);
        this.lastEvent = null;
        b1.setPaint(Color.red);
        assertNotNull(this.lastEvent);
        b2.setPaint(Color.green);
        assertNotNull(this.lastEvent);

        p.removeLayer(b2);
        this.lastEvent = null;
        b2.setPaint(Color.red);
        assertNull(this.lastEvent);
    }
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    dialFrame.setForegroundPaint(Color.darkGray);
    dialFrame.setStroke(new BasicStroke(3.0f));
    plot.setDialFrame(dialFrame);

    GradientPaint gp = new GradientPaint(new Point(), new Color(255, 255, 255), new Point(), new Color(240, 240, 240));
    DialBackground sdb = new DialBackground(gp);

    GradientPaintTransformType gradientPaintTransformType=GradientPaintTransformType.HORIZONTAL;

    sdb.setGradientPaintTransformer(new StandardGradientPaintTransformer(gradientPaintTransformType));
    plot.addLayer(sdb);

    increment = (upper-lower)/4;
    StandardDialScale scale=null;
    scale = new StandardDialScale(lower, upper, 115.0,-50.0, increment, minorTickCount);
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