org.jfree.text.TextBox Java Examples

/**
 * Confirm that cloning is not implemented.
 */
@Test
public void testCloning() {
    PieLabelRecord p1 = new PieLabelRecord("A", 1.0, 2.0, new TextBox("B"),
            3.0, 4.0, 5.0);
    assertFalse(p1 instanceof Cloneable);
}
 

/**
 * Creates a new record.
 *
 * @param key  the section key.
 * @param angle  the angle to the middle of the section (in radians).
 * @param baseY  the base y-coordinate.
 * @param label  the section label.
 * @param labelHeight  the label height (in Java2D units).
 * @param gap  the offset to the left.
 * @param linkPercent  the link percent.
 */
public PieLabelRecord(Comparable key, double angle, double baseY,
                      TextBox label, double labelHeight, double gap,
                      double linkPercent) {
    this.key = key;
    this.angle = angle;
    this.baseY = baseY;
    this.allocatedY = baseY;
    this.label = label;
    this.labelHeight = labelHeight;
    this.gap = gap;
    this.linkPercent = linkPercent;
}
 

/**
 * Creates a new record.
 *
 * @param key  the section key.
 * @param angle  the angle to the middle of the section (in radians).
 * @param baseY  the base y-coordinate.
 * @param label  the section label.
 * @param labelHeight  the label height (in Java2D units).
 * @param gap  the offset to the left.
 * @param linkPercent  the link percent.
 */
public PieLabelRecord(Comparable key, double angle, double baseY,
                      TextBox label, double labelHeight, double gap,
                      double linkPercent) {
    this.key = key;
    this.angle = angle;
    this.baseY = baseY;
    this.allocatedY = baseY;
    this.label = label;
    this.labelHeight = labelHeight;
    this.gap = gap;
    this.linkPercent = linkPercent;
}
 

/**
 * Serialize an instance, restore it, and check for equality.
 */
@Test
public void testSerialization() {
    PieLabelRecord p1 = new PieLabelRecord("A", 1.0, 2.0, new TextBox("B"),
            3.0, 4.0, 5.0);
    PieLabelRecord p2 = (PieLabelRecord) TestUtilities.serialised(p1);
    boolean b = p1.equals(p2);
    assertTrue(b);
}
 

/**
 * Confirm that cloning is not implemented.
 */
@Test
public void testCloning() {
    PieLabelRecord p1 = new PieLabelRecord("A", 1.0, 2.0, new TextBox("B"),
            3.0, 4.0, 5.0);
    assertFalse(p1 instanceof Cloneable);
}
 

/**
 * Draws a section label on the right side of the pie chart.
 * 
 * @param g2  the graphics device.
 * @param state  the state.
 * @param record  the label record.
 */
protected void drawRightLabel(Graphics2D g2, PiePlotState state, 
                              PieLabelRecord record) {
    
    double anchorX = state.getLinkArea().getMaxX();
    double targetX = anchorX + record.getGap();
    double targetY = record.getAllocatedY();
    
    if (this.labelLinksVisible) {
        double theta = record.getAngle();
        double linkX = state.getPieCenterX() + Math.cos(theta) 
            * state.getPieWRadius() * record.getLinkPercent();
        double linkY = state.getPieCenterY() - Math.sin(theta) 
            * state.getPieHRadius() * record.getLinkPercent();
        double elbowX = state.getPieCenterX() + Math.cos(theta) 
            * state.getLinkArea().getWidth() / 2.0;
        double elbowY = state.getPieCenterY() - Math.sin(theta) 
            * state.getLinkArea().getHeight() / 2.0;
        double anchorY = elbowY;
        g2.setPaint(this.labelLinkPaint);
        g2.setStroke(this.labelLinkStroke);
        g2.draw(new Line2D.Double(linkX, linkY, elbowX, elbowY));
        g2.draw(new Line2D.Double(anchorX, anchorY, elbowX, elbowY));
        g2.draw(new Line2D.Double(anchorX, anchorY, targetX, targetY));
    }
    
    TextBox tb = record.getLabel();
    tb.draw(g2, (float) targetX, (float) targetY, RectangleAnchor.LEFT);

}
 

/**
 * Draws a section label on the left side of the pie chart.
 * 
 * @param g2  the graphics device.
 * @param state  the state.
 * @param record  the label record.
 */
protected void drawLeftLabel(Graphics2D g2, PiePlotState state, 
                             PieLabelRecord record) {

    double anchorX = state.getLinkArea().getMinX();
    double targetX = anchorX - record.getGap();
    double targetY = record.getAllocatedY();
    
    if (this.labelLinksVisible) {
        double theta = record.getAngle();
        double linkX = state.getPieCenterX() + Math.cos(theta) 
            * state.getPieWRadius() * record.getLinkPercent();
        double linkY = state.getPieCenterY() - Math.sin(theta) 
            * state.getPieHRadius() * record.getLinkPercent();
        double elbowX = state.getPieCenterX() + Math.cos(theta) 
            * state.getLinkArea().getWidth() / 2.0;
        double elbowY = state.getPieCenterY() - Math.sin(theta) 
            * state.getLinkArea().getHeight() / 2.0;
        double anchorY = elbowY;
        g2.setPaint(this.labelLinkPaint);
        g2.setStroke(this.labelLinkStroke);
        g2.draw(new Line2D.Double(linkX, linkY, elbowX, elbowY));
        g2.draw(new Line2D.Double(anchorX, anchorY, elbowX, elbowY));
        g2.draw(new Line2D.Double(anchorX, anchorY, targetX, targetY));
    }
    TextBox tb = record.getLabel();
    tb.draw(g2, (float) targetX, (float) targetY, RectangleAnchor.RIGHT);
    
}
 

/**
 * Draws the left labels.
 * 
 * @param leftKeys  the keys.
 * @param g2  the graphics device.
 * @param plotArea  the plot area.
 * @param linkArea  the link area.
 * @param maxLabelWidth  the maximum label width.
 * @param state  the state.
 */
protected void drawLeftLabels(KeyedValues leftKeys, Graphics2D g2, 
                              Rectangle2D plotArea, Rectangle2D linkArea, 
                              float maxLabelWidth, PiePlotState state) {
    
    PieLabelDistributor distributor1 = new PieLabelDistributor(
        leftKeys.getItemCount()
    );
    double lGap = plotArea.getWidth() * this.labelGap;
    double verticalLinkRadius = state.getLinkArea().getHeight() / 2.0;
    for (int i = 0; i < leftKeys.getItemCount(); i++) {   
        String label = this.labelGenerator.generateSectionLabel(
                this.dataset, leftKeys.getKey(i));
        if (label != null) {
            TextBlock block = TextUtilities.createTextBlock(label, 
                    this.labelFont, this.labelPaint, maxLabelWidth, 
                    new G2TextMeasurer(g2));
            TextBox labelBox = new TextBox(block);
            labelBox.setBackgroundPaint(this.labelBackgroundPaint);
            labelBox.setOutlinePaint(this.labelOutlinePaint);
            labelBox.setOutlineStroke(this.labelOutlineStroke);
            labelBox.setShadowPaint(this.labelShadowPaint);
            double theta = Math.toRadians(
                    leftKeys.getValue(i).doubleValue());
            double baseY = state.getPieCenterY() - Math.sin(theta) 
                           * verticalLinkRadius;
            double hh = labelBox.getHeight(g2);

            distributor1.addPieLabelRecord(new PieLabelRecord(
                    leftKeys.getKey(i), theta, baseY, labelBox, hh,
                    lGap / 2.0 + lGap / 2.0 * -Math.cos(theta), 0.9 
                    + getExplodePercent(this.dataset.getIndex(
                            leftKeys.getKey(i)))));
        }
    }
    distributor1.distributeLabels(plotArea.getMinY(), plotArea.getHeight());
    for (int i = 0; i < distributor1.getItemCount(); i++) {
        drawLeftLabel(g2, state, distributor1.getPieLabelRecord(i));
    }
}
 

/**
 * Creates a new record.
 * 
 * @param key  the key.
 * @param angle  the angle.
 * @param baseY  the base y-coordinate.
 * @param label  the label.
 * @param labelHeight  the label height (in Java2D units).
 * @param gap  the gap.
 * @param linkPercent  the link percent.
 */
public PieLabelRecord(Comparable key, double angle, double baseY, 
                      TextBox label, double labelHeight, double gap, 
                      double linkPercent) {
    this.key = key;
    this.angle = angle;
    this.baseY = baseY;
    this.allocatedY = baseY;
    this.label = label;
    this.labelHeight = labelHeight;
    this.gap = gap;
    this.linkPercent = linkPercent;
}
 

/**
 * Creates a new record.
 *
 * @param key  the section key.
 * @param angle  the angle to the middle of the section (in radians).
 * @param baseY  the base y-coordinate.
 * @param label  the section label.
 * @param labelHeight  the label height (in Java2D units).
 * @param gap  the offset to the left.
 * @param linkPercent  the link percent.
 */
public PieLabelRecord(Comparable key, double angle, double baseY,
                      TextBox label, double labelHeight, double gap,
                      double linkPercent) {
    this.key = key;
    this.angle = angle;
    this.baseY = baseY;
    this.allocatedY = baseY;
    this.label = label;
    this.labelHeight = labelHeight;
    this.gap = gap;
    this.linkPercent = linkPercent;
}
 

/**
 * Serialize an instance, restore it, and check for equality.
 */
@Test
public void testSerialization() {
    PieLabelRecord p1 = new PieLabelRecord("A", 1.0, 2.0, new TextBox("B"),
            3.0, 4.0, 5.0);
    PieLabelRecord p2 = (PieLabelRecord) TestUtilities.serialised(p1);
    boolean b = p1.equals(p2);
    assertTrue(b);
}
 

/**
 * Confirm that cloning is not implemented.
 */
@Test
public void testCloning() {
    PieLabelRecord p1 = new PieLabelRecord("A", 1.0, 2.0, new TextBox("B"),
            3.0, 4.0, 5.0);
    assertFalse(p1 instanceof Cloneable);
}
 

/**
 * Creates a new record.
 *
 * @param key  the section key.
 * @param angle  the angle to the middle of the section (in radians).
 * @param baseY  the base y-coordinate.
 * @param label  the section label.
 * @param labelHeight  the label height (in Java2D units).
 * @param gap  the offset to the left.
 * @param linkPercent  the link percent.
 */
public PieLabelRecord(Comparable key, double angle, double baseY,
                      TextBox label, double labelHeight, double gap,
                      double linkPercent) {
    this.key = key;
    this.angle = angle;
    this.baseY = baseY;
    this.allocatedY = baseY;
    this.label = label;
    this.labelHeight = labelHeight;
    this.gap = gap;
    this.linkPercent = linkPercent;
}
 

/**
 * Serialize an instance, restore it, and check for equality.
 */
@Test
public void testSerialization() {
    PieLabelRecord p1 = new PieLabelRecord("A", 1.0, 2.0, new TextBox("B"),
            3.0, 4.0, 5.0);
    PieLabelRecord p2 = (PieLabelRecord) TestUtilities.serialised(p1);
    boolean b = p1.equals(p2);
    assertTrue(b);
}
 

/**
 * Confirm that cloning is not implemented.
 */
@Test
public void testCloning() {
    PieLabelRecord p1 = new PieLabelRecord("A", 1.0, 2.0, new TextBox("B"),
            3.0, 4.0, 5.0);
    assertFalse(p1 instanceof Cloneable);
}
 

/**
 * Serialize an instance, restore it, and check for equality.
 */
@Test
public void testSerialization() {
    PieLabelRecord p1 = new PieLabelRecord("A", 1.0, 2.0, new TextBox("B"),
            3.0, 4.0, 5.0);
    PieLabelRecord p2 = (PieLabelRecord) TestUtilities.serialised(p1);
    boolean b = p1.equals(p2);
    assertTrue(b);
}
 

/**
 * Creates a new record.
 *
 * @param key  the section key.
 * @param angle  the angle to the middle of the section (in radians).
 * @param baseY  the base y-coordinate.
 * @param label  the section label.
 * @param labelHeight  the label height (in Java2D units).
 * @param gap  the offset to the left.
 * @param linkPercent  the link percent.
 */
public PieLabelRecord(Comparable key, double angle, double baseY,
                      TextBox label, double labelHeight, double gap,
                      double linkPercent) {
    this.key = key;
    this.angle = angle;
    this.baseY = baseY;
    this.allocatedY = baseY;
    this.label = label;
    this.labelHeight = labelHeight;
    this.gap = gap;
    this.linkPercent = linkPercent;
}
 

/**
 * Creates a new record.
 *
 * @param key  the section key.
 * @param angle  the angle to the middle of the section (in radians).
 * @param baseY  the base y-coordinate.
 * @param label  the section label.
 * @param labelHeight  the label height (in Java2D units).
 * @param gap  the offset to the left.
 * @param linkPercent  the link percent.
 */
public PieLabelRecord(Comparable key, double angle, double baseY,
                      TextBox label, double labelHeight, double gap,
                      double linkPercent) {
    this.key = key;
    this.angle = angle;
    this.baseY = baseY;
    this.allocatedY = baseY;
    this.label = label;
    this.labelHeight = labelHeight;
    this.gap = gap;
    this.linkPercent = linkPercent;
}
 

/**
 * Serialize an instance, restore it, and check for equality.
 */
@Test
public void testSerialization() {
    PieLabelRecord p1 = new PieLabelRecord("A", 1.0, 2.0, new TextBox("B"),
            3.0, 4.0, 5.0);
    PieLabelRecord p2 = (PieLabelRecord) TestUtilities.serialised(p1);
    boolean b = p1.equals(p2);
    assertTrue(b);
}
 

/**
 * Confirm that cloning is not implemented.
 */
@Test
public void testCloning() {
    PieLabelRecord p1 = new PieLabelRecord("A", 1.0, 2.0, new TextBox("B"),
            3.0, 4.0, 5.0);
    assertFalse(p1 instanceof Cloneable);
}
 

/**
 * Confirm that the equals method can distinguish all the required fields.
 */
@Test
public void testEquals() {
    PieLabelRecord p1 = new PieLabelRecord("A", 1.0, 2.0, new TextBox("B"),
            3.0, 4.0, 5.0);
    PieLabelRecord p2 = new PieLabelRecord("A", 1.0, 2.0, new TextBox("B"),
            3.0, 4.0, 5.0);
    assertTrue(p1.equals(p2));
    assertTrue(p2.equals(p1));

    p1 = new PieLabelRecord("B", 1.0, 2.0, new TextBox("B"), 3.0, 4.0, 5.0);
    assertFalse(p1.equals(p2));
    p2 = new PieLabelRecord("B", 1.0, 2.0, new TextBox("B"), 3.0, 4.0, 5.0);
    assertTrue(p1.equals(p2));

    p1 = new PieLabelRecord("B", 1.1, 2.0, new TextBox("B"), 3.0, 4.0, 5.0);
    assertFalse(p1.equals(p2));
    p2 = new PieLabelRecord("B", 1.1, 2.0, new TextBox("B"), 3.0, 4.0, 5.0);
    assertTrue(p1.equals(p2));

    p1 = new PieLabelRecord("B", 1.1, 2.2, new TextBox("B"), 3.0, 4.0, 5.0);
    assertFalse(p1.equals(p2));
    p2 = new PieLabelRecord("B", 1.1, 2.2, new TextBox("B"), 3.0, 4.0, 5.0);
    assertTrue(p1.equals(p2));

    p1 = new PieLabelRecord("B", 1.1, 2.2, new TextBox("C"), 3.0, 4.0, 5.0);
    assertFalse(p1.equals(p2));
    p2 = new PieLabelRecord("B", 1.1, 2.2, new TextBox("C"), 3.0, 4.0, 5.0);
    assertTrue(p1.equals(p2));

    p1 = new PieLabelRecord("B", 1.1, 2.2, new TextBox("C"), 3.3, 4.0, 5.0);
    assertFalse(p1.equals(p2));
    p2 = new PieLabelRecord("B", 1.1, 2.2, new TextBox("C"), 3.3, 4.0, 5.0);
    assertTrue(p1.equals(p2));

    p1 = new PieLabelRecord("B", 1.1, 2.2, new TextBox("C"), 3.3, 4.4, 5.0);
    assertFalse(p1.equals(p2));
    p2 = new PieLabelRecord("B", 1.1, 2.2, new TextBox("C"), 3.3, 4.4, 5.0);
    assertTrue(p1.equals(p2));

    p1 = new PieLabelRecord("B", 1.1, 2.2, new TextBox("C"), 3.3, 4.4, 5.5);
    assertFalse(p1.equals(p2));
    p2 = new PieLabelRecord("B", 1.1, 2.2, new TextBox("C"), 3.3, 4.4, 5.5);
    assertTrue(p1.equals(p2));

}
 

/**
 * Draws a section label on the right side of the pie chart.
 *
 * @param g2  the graphics device.
 * @param state  the state.
 * @param record  the label record.
 */
protected void drawRightLabel(Graphics2D g2, PiePlotState state,
                              PieLabelRecord record) {

    double anchorX = state.getLinkArea().getMaxX();
    double targetX = anchorX + record.getGap();
    double targetY = record.getAllocatedY();

    if (this.labelLinksVisible) {
        double theta = record.getAngle();
        double linkX = state.getPieCenterX() + Math.cos(theta)
                * state.getPieWRadius() * record.getLinkPercent();
        double linkY = state.getPieCenterY() - Math.sin(theta)
                * state.getPieHRadius() * record.getLinkPercent();
        double elbowX = state.getPieCenterX() + Math.cos(theta)
                * state.getLinkArea().getWidth() / 2.0;
        double elbowY = state.getPieCenterY() - Math.sin(theta)
                * state.getLinkArea().getHeight() / 2.0;
        double anchorY = elbowY;
        g2.setPaint(this.labelLinkPaint);
        g2.setStroke(this.labelLinkStroke);
        PieLabelLinkStyle style = getLabelLinkStyle();
        if (style.equals(PieLabelLinkStyle.STANDARD)) {
            g2.draw(new Line2D.Double(linkX, linkY, elbowX, elbowY));
            g2.draw(new Line2D.Double(anchorX, anchorY, elbowX, elbowY));
            g2.draw(new Line2D.Double(anchorX, anchorY, targetX, targetY));
        }
        else if (style.equals(PieLabelLinkStyle.QUAD_CURVE)) {
            QuadCurve2D q = new QuadCurve2D.Float();
            q.setCurve(targetX, targetY, anchorX, anchorY, elbowX, elbowY);
            g2.draw(q);
            g2.draw(new Line2D.Double(elbowX, elbowY, linkX, linkY));
        }
        else if (style.equals(PieLabelLinkStyle.CUBIC_CURVE)) {
            CubicCurve2D c = new CubicCurve2D .Float();
            c.setCurve(targetX, targetY, anchorX, anchorY, elbowX, elbowY,
                    linkX, linkY);
            g2.draw(c);
        }
    }

    TextBox tb = record.getLabel();
    tb.draw(g2, (float) targetX, (float) targetY, RectangleAnchor.LEFT);

}
 

/**
 * Draws a section label on the left side of the pie chart.
 *
 * @param g2  the graphics device.
 * @param state  the state.
 * @param record  the label record.
 */
protected void drawLeftLabel(Graphics2D g2, PiePlotState state,
                             PieLabelRecord record) {

    double anchorX = state.getLinkArea().getMinX();
    double targetX = anchorX - record.getGap();
    double targetY = record.getAllocatedY();

    if (this.labelLinksVisible) {
        double theta = record.getAngle();
        double linkX = state.getPieCenterX() + Math.cos(theta)
                * state.getPieWRadius() * record.getLinkPercent();
        double linkY = state.getPieCenterY() - Math.sin(theta)
                * state.getPieHRadius() * record.getLinkPercent();
        double elbowX = state.getPieCenterX() + Math.cos(theta)
                * state.getLinkArea().getWidth() / 2.0;
        double elbowY = state.getPieCenterY() - Math.sin(theta)
                * state.getLinkArea().getHeight() / 2.0;
        double anchorY = elbowY;
        g2.setPaint(this.labelLinkPaint);
        g2.setStroke(this.labelLinkStroke);
        PieLabelLinkStyle style = getLabelLinkStyle();
        if (style.equals(PieLabelLinkStyle.STANDARD)) {
            g2.draw(new Line2D.Double(linkX, linkY, elbowX, elbowY));
            g2.draw(new Line2D.Double(anchorX, anchorY, elbowX, elbowY));
            g2.draw(new Line2D.Double(anchorX, anchorY, targetX, targetY));
        }
        else if (style.equals(PieLabelLinkStyle.QUAD_CURVE)) {
            QuadCurve2D q = new QuadCurve2D.Float();
            q.setCurve(targetX, targetY, anchorX, anchorY, elbowX, elbowY);
            g2.draw(q);
            g2.draw(new Line2D.Double(elbowX, elbowY, linkX, linkY));
        }
        else if (style.equals(PieLabelLinkStyle.CUBIC_CURVE)) {
            CubicCurve2D c = new CubicCurve2D .Float();
            c.setCurve(targetX, targetY, anchorX, anchorY, elbowX, elbowY,
                    linkX, linkY);
            g2.draw(c);
        }
    }
    TextBox tb = record.getLabel();
    tb.draw(g2, (float) targetX, (float) targetY, RectangleAnchor.RIGHT);

}
 

/**
 * Confirm that the equals method can distinguish all the required fields.
 */
@Test
public void testEquals() {
    PieLabelRecord p1 = new PieLabelRecord("A", 1.0, 2.0, new TextBox("B"),
            3.0, 4.0, 5.0);
    PieLabelRecord p2 = new PieLabelRecord("A", 1.0, 2.0, new TextBox("B"),
            3.0, 4.0, 5.0);
    assertTrue(p1.equals(p2));
    assertTrue(p2.equals(p1));

    p1 = new PieLabelRecord("B", 1.0, 2.0, new TextBox("B"), 3.0, 4.0, 5.0);
    assertFalse(p1.equals(p2));
    p2 = new PieLabelRecord("B", 1.0, 2.0, new TextBox("B"), 3.0, 4.0, 5.0);
    assertTrue(p1.equals(p2));

    p1 = new PieLabelRecord("B", 1.1, 2.0, new TextBox("B"), 3.0, 4.0, 5.0);
    assertFalse(p1.equals(p2));
    p2 = new PieLabelRecord("B", 1.1, 2.0, new TextBox("B"), 3.0, 4.0, 5.0);
    assertTrue(p1.equals(p2));

    p1 = new PieLabelRecord("B", 1.1, 2.2, new TextBox("B"), 3.0, 4.0, 5.0);
    assertFalse(p1.equals(p2));
    p2 = new PieLabelRecord("B", 1.1, 2.2, new TextBox("B"), 3.0, 4.0, 5.0);
    assertTrue(p1.equals(p2));

    p1 = new PieLabelRecord("B", 1.1, 2.2, new TextBox("C"), 3.0, 4.0, 5.0);
    assertFalse(p1.equals(p2));
    p2 = new PieLabelRecord("B", 1.1, 2.2, new TextBox("C"), 3.0, 4.0, 5.0);
    assertTrue(p1.equals(p2));

    p1 = new PieLabelRecord("B", 1.1, 2.2, new TextBox("C"), 3.3, 4.0, 5.0);
    assertFalse(p1.equals(p2));
    p2 = new PieLabelRecord("B", 1.1, 2.2, new TextBox("C"), 3.3, 4.0, 5.0);
    assertTrue(p1.equals(p2));

    p1 = new PieLabelRecord("B", 1.1, 2.2, new TextBox("C"), 3.3, 4.4, 5.0);
    assertFalse(p1.equals(p2));
    p2 = new PieLabelRecord("B", 1.1, 2.2, new TextBox("C"), 3.3, 4.4, 5.0);
    assertTrue(p1.equals(p2));

    p1 = new PieLabelRecord("B", 1.1, 2.2, new TextBox("C"), 3.3, 4.4, 5.5);
    assertFalse(p1.equals(p2));
    p2 = new PieLabelRecord("B", 1.1, 2.2, new TextBox("C"), 3.3, 4.4, 5.5);
    assertTrue(p1.equals(p2));

}
 

/**
 * Draws a section label on the right side of the pie chart.
 *
 * @param g2  the graphics device.
 * @param state  the state.
 * @param record  the label record.
 */
protected void drawRightLabel(Graphics2D g2, PiePlotState state,
                              PieLabelRecord record) {

    double anchorX = state.getLinkArea().getMaxX();
    double targetX = anchorX + record.getGap();
    double targetY = record.getAllocatedY();

    if (this.labelLinksVisible) {
        double theta = record.getAngle();
        double linkX = state.getPieCenterX() + Math.cos(theta)
                * state.getPieWRadius() * record.getLinkPercent();
        double linkY = state.getPieCenterY() - Math.sin(theta)
                * state.getPieHRadius() * record.getLinkPercent();
        double elbowX = state.getPieCenterX() + Math.cos(theta)
                * state.getLinkArea().getWidth() / 2.0;
        double elbowY = state.getPieCenterY() - Math.sin(theta)
                * state.getLinkArea().getHeight() / 2.0;
        double anchorY = elbowY;
        g2.setPaint(this.labelLinkPaint);
        g2.setStroke(this.labelLinkStroke);
        PieLabelLinkStyle style = getLabelLinkStyle();
        if (style.equals(PieLabelLinkStyle.STANDARD)) {
            g2.draw(new Line2D.Double(linkX, linkY, elbowX, elbowY));
            g2.draw(new Line2D.Double(anchorX, anchorY, elbowX, elbowY));
            g2.draw(new Line2D.Double(anchorX, anchorY, targetX, targetY));
        }
        else if (style.equals(PieLabelLinkStyle.QUAD_CURVE)) {
            QuadCurve2D q = new QuadCurve2D.Float();
            q.setCurve(targetX, targetY, anchorX, anchorY, elbowX, elbowY);
            g2.draw(q);
            g2.draw(new Line2D.Double(elbowX, elbowY, linkX, linkY));
        }
        else if (style.equals(PieLabelLinkStyle.CUBIC_CURVE)) {
            CubicCurve2D c = new CubicCurve2D .Float();
            c.setCurve(targetX, targetY, anchorX, anchorY, elbowX, elbowY,
                    linkX, linkY);
            g2.draw(c);
        }
    }

    TextBox tb = record.getLabel();
    tb.draw(g2, (float) targetX, (float) targetY, RectangleAnchor.LEFT);

}
 

/**
 * Draws a section label on the left side of the pie chart.
 *
 * @param g2  the graphics device.
 * @param state  the state.
 * @param record  the label record.
 */
protected void drawLeftLabel(Graphics2D g2, PiePlotState state,
                             PieLabelRecord record) {

    double anchorX = state.getLinkArea().getMinX();
    double targetX = anchorX - record.getGap();
    double targetY = record.getAllocatedY();

    if (this.labelLinksVisible) {
        double theta = record.getAngle();
        double linkX = state.getPieCenterX() + Math.cos(theta)
                * state.getPieWRadius() * record.getLinkPercent();
        double linkY = state.getPieCenterY() - Math.sin(theta)
                * state.getPieHRadius() * record.getLinkPercent();
        double elbowX = state.getPieCenterX() + Math.cos(theta)
                * state.getLinkArea().getWidth() / 2.0;
        double elbowY = state.getPieCenterY() - Math.sin(theta)
                * state.getLinkArea().getHeight() / 2.0;
        double anchorY = elbowY;
        g2.setPaint(this.labelLinkPaint);
        g2.setStroke(this.labelLinkStroke);
        PieLabelLinkStyle style = getLabelLinkStyle();
        if (style.equals(PieLabelLinkStyle.STANDARD)) {
            g2.draw(new Line2D.Double(linkX, linkY, elbowX, elbowY));
            g2.draw(new Line2D.Double(anchorX, anchorY, elbowX, elbowY));
            g2.draw(new Line2D.Double(anchorX, anchorY, targetX, targetY));
        }
        else if (style.equals(PieLabelLinkStyle.QUAD_CURVE)) {
            QuadCurve2D q = new QuadCurve2D.Float();
            q.setCurve(targetX, targetY, anchorX, anchorY, elbowX, elbowY);
            g2.draw(q);
            g2.draw(new Line2D.Double(elbowX, elbowY, linkX, linkY));
        }
        else if (style.equals(PieLabelLinkStyle.CUBIC_CURVE)) {
            CubicCurve2D c = new CubicCurve2D .Float();
            c.setCurve(targetX, targetY, anchorX, anchorY, elbowX, elbowY,
                    linkX, linkY);
            g2.draw(c);
        }
    }
    TextBox tb = record.getLabel();
    tb.draw(g2, (float) targetX, (float) targetY, RectangleAnchor.RIGHT);

}
 

/**
 * Confirm that the equals method can distinguish all the required fields.
 */
@Test
public void testEquals() {
    PieLabelRecord p1 = new PieLabelRecord("A", 1.0, 2.0, new TextBox("B"),
            3.0, 4.0, 5.0);
    PieLabelRecord p2 = new PieLabelRecord("A", 1.0, 2.0, new TextBox("B"),
            3.0, 4.0, 5.0);
    assertTrue(p1.equals(p2));
    assertTrue(p2.equals(p1));

    p1 = new PieLabelRecord("B", 1.0, 2.0, new TextBox("B"), 3.0, 4.0, 5.0);
    assertFalse(p1.equals(p2));
    p2 = new PieLabelRecord("B", 1.0, 2.0, new TextBox("B"), 3.0, 4.0, 5.0);
    assertTrue(p1.equals(p2));

    p1 = new PieLabelRecord("B", 1.1, 2.0, new TextBox("B"), 3.0, 4.0, 5.0);
    assertFalse(p1.equals(p2));
    p2 = new PieLabelRecord("B", 1.1, 2.0, new TextBox("B"), 3.0, 4.0, 5.0);
    assertTrue(p1.equals(p2));

    p1 = new PieLabelRecord("B", 1.1, 2.2, new TextBox("B"), 3.0, 4.0, 5.0);
    assertFalse(p1.equals(p2));
    p2 = new PieLabelRecord("B", 1.1, 2.2, new TextBox("B"), 3.0, 4.0, 5.0);
    assertTrue(p1.equals(p2));

    p1 = new PieLabelRecord("B", 1.1, 2.2, new TextBox("C"), 3.0, 4.0, 5.0);
    assertFalse(p1.equals(p2));
    p2 = new PieLabelRecord("B", 1.1, 2.2, new TextBox("C"), 3.0, 4.0, 5.0);
    assertTrue(p1.equals(p2));

    p1 = new PieLabelRecord("B", 1.1, 2.2, new TextBox("C"), 3.3, 4.0, 5.0);
    assertFalse(p1.equals(p2));
    p2 = new PieLabelRecord("B", 1.1, 2.2, new TextBox("C"), 3.3, 4.0, 5.0);
    assertTrue(p1.equals(p2));

    p1 = new PieLabelRecord("B", 1.1, 2.2, new TextBox("C"), 3.3, 4.4, 5.0);
    assertFalse(p1.equals(p2));
    p2 = new PieLabelRecord("B", 1.1, 2.2, new TextBox("C"), 3.3, 4.4, 5.0);
    assertTrue(p1.equals(p2));

    p1 = new PieLabelRecord("B", 1.1, 2.2, new TextBox("C"), 3.3, 4.4, 5.5);
    assertFalse(p1.equals(p2));
    p2 = new PieLabelRecord("B", 1.1, 2.2, new TextBox("C"), 3.3, 4.4, 5.5);
    assertTrue(p1.equals(p2));

}
 

/**
 * Draws a section label on the left side of the pie chart.
 *
 * @param g2  the graphics device.
 * @param state  the state.
 * @param record  the label record.
 */
protected void drawLeftLabel(Graphics2D g2, PiePlotState state,
                             PieLabelRecord record) {

    double anchorX = state.getLinkArea().getMinX();
    double targetX = anchorX - record.getGap();
    double targetY = record.getAllocatedY();

    if (this.labelLinksVisible) {
        double theta = record.getAngle();
        double linkX = state.getPieCenterX() + Math.cos(theta)
                * state.getPieWRadius() * record.getLinkPercent();
        double linkY = state.getPieCenterY() - Math.sin(theta)
                * state.getPieHRadius() * record.getLinkPercent();
        double elbowX = state.getPieCenterX() + Math.cos(theta)
                * state.getLinkArea().getWidth() / 2.0;
        double elbowY = state.getPieCenterY() - Math.sin(theta)
                * state.getLinkArea().getHeight() / 2.0;
        double anchorY = elbowY;
        g2.setPaint(this.labelLinkPaint);
        g2.setStroke(this.labelLinkStroke);
        PieLabelLinkStyle style = getLabelLinkStyle();
        if (style.equals(PieLabelLinkStyle.STANDARD)) {
            g2.draw(new Line2D.Double(linkX, linkY, elbowX, elbowY));
            g2.draw(new Line2D.Double(anchorX, anchorY, elbowX, elbowY));
            g2.draw(new Line2D.Double(anchorX, anchorY, targetX, targetY));
        }
        else if (style.equals(PieLabelLinkStyle.QUAD_CURVE)) {
            QuadCurve2D q = new QuadCurve2D.Float();
            q.setCurve(targetX, targetY, anchorX, anchorY, elbowX, elbowY);
            g2.draw(q);
            g2.draw(new Line2D.Double(elbowX, elbowY, linkX, linkY));
        }
        else if (style.equals(PieLabelLinkStyle.CUBIC_CURVE)) {
            CubicCurve2D c = new CubicCurve2D .Float();
            c.setCurve(targetX, targetY, anchorX, anchorY, elbowX, elbowY,
                    linkX, linkY);
            g2.draw(c);
        }
    }
    TextBox tb = record.getLabel();
    tb.draw(g2, (float) targetX, (float) targetY, RectangleAnchor.RIGHT);

}
 

/**
 * Draws a section label on the right side of the pie chart.
 *
 * @param g2  the graphics device.
 * @param state  the state.
 * @param record  the label record.
 */
protected void drawRightLabel(Graphics2D g2, PiePlotState state,
                              PieLabelRecord record) {

    double anchorX = state.getLinkArea().getMaxX();
    double targetX = anchorX + record.getGap();
    double targetY = record.getAllocatedY();

    if (this.labelLinksVisible) {
        double theta = record.getAngle();
        double linkX = state.getPieCenterX() + Math.cos(theta)
                * state.getPieWRadius() * record.getLinkPercent();
        double linkY = state.getPieCenterY() - Math.sin(theta)
                * state.getPieHRadius() * record.getLinkPercent();
        double elbowX = state.getPieCenterX() + Math.cos(theta)
                * state.getLinkArea().getWidth() / 2.0;
        double elbowY = state.getPieCenterY() - Math.sin(theta)
                * state.getLinkArea().getHeight() / 2.0;
        double anchorY = elbowY;
        g2.setPaint(this.labelLinkPaint);
        g2.setStroke(this.labelLinkStroke);
        PieLabelLinkStyle style = getLabelLinkStyle();
        if (style.equals(PieLabelLinkStyle.STANDARD)) {
            g2.draw(new Line2D.Double(linkX, linkY, elbowX, elbowY));
            g2.draw(new Line2D.Double(anchorX, anchorY, elbowX, elbowY));
            g2.draw(new Line2D.Double(anchorX, anchorY, targetX, targetY));
        }
        else if (style.equals(PieLabelLinkStyle.QUAD_CURVE)) {
            QuadCurve2D q = new QuadCurve2D.Float();
            q.setCurve(targetX, targetY, anchorX, anchorY, elbowX, elbowY);
            g2.draw(q);
            g2.draw(new Line2D.Double(elbowX, elbowY, linkX, linkY));
        }
        else if (style.equals(PieLabelLinkStyle.CUBIC_CURVE)) {
            CubicCurve2D c = new CubicCurve2D .Float();
            c.setCurve(targetX, targetY, anchorX, anchorY, elbowX, elbowY,
                    linkX, linkY);
            g2.draw(c);
        }
    }

    TextBox tb = record.getLabel();
    tb.draw(g2, (float) targetX, (float) targetY, RectangleAnchor.LEFT);

}
 

/**
 * Draws the right labels.
 * 
 * @param keys  the keys.
 * @param g2  the graphics device.
 * @param plotArea  the plot area.
 * @param linkArea  the link area.
 * @param maxLabelWidth  the maximum label width.
 * @param state  the state.
 */
protected void drawRightLabels(KeyedValues keys, Graphics2D g2, 
                               Rectangle2D plotArea, Rectangle2D linkArea, 
                               float maxLabelWidth, PiePlotState state) {

    // draw the right labels...
    PieLabelDistributor distributor2 
        = new PieLabelDistributor(keys.getItemCount());
    double lGap = plotArea.getWidth() * this.labelGap;
    double verticalLinkRadius = state.getLinkArea().getHeight() / 2.0;

    for (int i = 0; i < keys.getItemCount(); i++) {
        String label = this.labelGenerator.generateSectionLabel(
                this.dataset, keys.getKey(i));

        if (label != null) {
            TextBlock block = TextUtilities.createTextBlock(label, 
                    this.labelFont, this.labelPaint, maxLabelWidth, 
                    new G2TextMeasurer(g2));
            TextBox labelBox = new TextBox(block);
            labelBox.setBackgroundPaint(this.labelBackgroundPaint);
            labelBox.setOutlinePaint(this.labelOutlinePaint);
            labelBox.setOutlineStroke(this.labelOutlineStroke);
            labelBox.setShadowPaint(this.labelShadowPaint);
            double theta = Math.toRadians(keys.getValue(i).doubleValue());
            double baseY = state.getPieCenterY() 
                          - Math.sin(theta) * verticalLinkRadius;
            double hh = labelBox.getHeight(g2);
            distributor2.addPieLabelRecord(new PieLabelRecord(
                    keys.getKey(i), theta, baseY, labelBox, hh,
                    lGap / 2.0 + lGap / 2.0 * Math.cos(theta), 
                    0.9 + getExplodePercent(this.dataset.getIndex(
                            keys.getKey(i)))));
        }
    }
    distributor2.distributeLabels(plotArea.getMinY(), plotArea.getHeight());
    for (int i = 0; i < distributor2.getItemCount(); i++) {
        drawRightLabel(g2, state, distributor2.getPieLabelRecord(i));
    }

}