org.jfree.text.TextBlock Java Examples

/**
 * Two objects that are equal are required to return the same hashCode.
 */
@Test
public void testHashCode() {
    Comparable c1 = "C1";
    TextBlock tb1 = new TextBlock();
    tb1.addLine(new TextLine("Block 1"));
    tb1.addLine(new TextLine("Block 2"));
    TextBlockAnchor tba1 = TextBlockAnchor.CENTER;
    TextAnchor ta1 = TextAnchor.CENTER;

    CategoryTick t1 = new CategoryTick(c1, tb1, tba1, ta1, 1.0f);
    CategoryTick t2 = new CategoryTick(c1, tb1, tba1, ta1, 1.0f);
    assertTrue(t1.equals(t2));
    int h1 = t1.hashCode();
    int h2 = t2.hashCode();
    assertEquals(h1, h2);
}
 

/**
 * Draws a message to state that there is no data to plot.
 *
 * @param g2  the graphics device.
 * @param area  the area within which the plot should be drawn.
 */
protected void drawNoDataMessage(Graphics2D g2, Rectangle2D area) {
    Shape savedClip = g2.getClip();
    g2.clip(area);
    String message = this.noDataMessage;
    if (message != null) {
        g2.setFont(this.noDataMessageFont);
        g2.setPaint(this.noDataMessagePaint);
        TextBlock block = TextUtilities.createTextBlock(
                this.noDataMessage, this.noDataMessageFont,
                this.noDataMessagePaint, 0.9f * (float) area.getWidth(),
                new G2TextMeasurer(g2));
        block.draw(g2, (float) area.getCenterX(),
                (float) area.getCenterY(), TextBlockAnchor.CENTER);
    }
    g2.setClip(savedClip);
}
 

/**
 * Draws a message to state that there is no data to plot.
 *
 * @param g2  the graphics device.
 * @param area  the area within which the plot should be drawn.
 */
protected void drawNoDataMessage(Graphics2D g2, Rectangle2D area) {
    Shape savedClip = g2.getClip();
    g2.clip(area);
    String message = this.noDataMessage;
    if (message != null) {
        g2.setFont(this.noDataMessageFont);
        g2.setPaint(this.noDataMessagePaint);
        TextBlock block = TextUtilities.createTextBlock(
                this.noDataMessage, this.noDataMessageFont,
                this.noDataMessagePaint, 0.9f * (float) area.getWidth(),
                new G2TextMeasurer(g2));
        block.draw(g2, (float) area.getCenterX(),
                (float) area.getCenterY(), TextBlockAnchor.CENTER);
    }
    g2.setClip(savedClip);
}
 

/**
 * Draws a message to state that there is no data to plot.
 *
 * @param g2  the graphics device.
 * @param area  the area within which the plot should be drawn.
 */
protected void drawNoDataMessage(Graphics2D g2, Rectangle2D area) {
    Shape savedClip = g2.getClip();
    g2.clip(area);
    String message = this.noDataMessage;
    if (message != null) {
        g2.setFont(this.noDataMessageFont);
        g2.setPaint(this.noDataMessagePaint);
        TextBlock block = TextUtilities.createTextBlock(
                this.noDataMessage, this.noDataMessageFont,
                this.noDataMessagePaint, 0.9f * (float) area.getWidth(),
                new G2TextMeasurer(g2));
        block.draw(g2, (float) area.getCenterX(),
                (float) area.getCenterY(), TextBlockAnchor.CENTER);
    }
    g2.setClip(savedClip);
}
 

/**
 * Two objects that are equal are required to return the same hashCode.
 */
@Test
public void testHashCode() {
    Comparable c1 = "C1";
    TextBlock tb1 = new TextBlock();
    tb1.addLine(new TextLine("Block 1"));
    tb1.addLine(new TextLine("Block 2"));
    TextBlockAnchor tba1 = TextBlockAnchor.CENTER;
    TextAnchor ta1 = TextAnchor.CENTER;

    CategoryTick t1 = new CategoryTick(c1, tb1, tba1, ta1, 1.0f);
    CategoryTick t2 = new CategoryTick(c1, tb1, tba1, ta1, 1.0f);
    assertTrue(t1.equals(t2));
    int h1 = t1.hashCode();
    int h2 = t2.hashCode();
    assertEquals(h1, h2);
}
 

/**
 * Two objects that are equal are required to return the same hashCode.
 */
@Test
public void testHashCode() {
    Comparable c1 = "C1";
    TextBlock tb1 = new TextBlock();
    tb1.addLine(new TextLine("Block 1"));
    tb1.addLine(new TextLine("Block 2"));
    TextBlockAnchor tba1 = TextBlockAnchor.CENTER;
    TextAnchor ta1 = TextAnchor.CENTER;

    CategoryTick t1 = new CategoryTick(c1, tb1, tba1, ta1, 1.0f);
    CategoryTick t2 = new CategoryTick(c1, tb1, tba1, ta1, 1.0f);
    assertTrue(t1.equals(t2));
    int h1 = t1.hashCode();
    int h2 = t2.hashCode();
    assertEquals(h1, h2);
}
 

/**
 * Draws a message to state that there is no data to plot.
 *
 * @param g2  the graphics device.
 * @param area  the area within which the plot should be drawn.
 */
protected void drawNoDataMessage(Graphics2D g2, Rectangle2D area) {
    Shape savedClip = g2.getClip();
    g2.clip(area);
    String message = this.noDataMessage;
    if (message != null) {
        g2.setFont(this.noDataMessageFont);
        g2.setPaint(this.noDataMessagePaint);
        TextBlock block = TextUtilities.createTextBlock(
                this.noDataMessage, this.noDataMessageFont,
                this.noDataMessagePaint, 0.9f * (float) area.getWidth(),
                new G2TextMeasurer(g2));
        block.draw(g2, (float) area.getCenterX(),
                (float) area.getCenterY(), TextBlockAnchor.CENTER);
    }
    g2.setClip(savedClip);
}
 

/**
 * A utility method for determining the height of a text block.
 *
 * @param block  the text block.
 * @param position  the label position.
 * @param g2  the graphics device.
 *
 * @return The height.
 */
protected double calculateTextBlockHeight(TextBlock block, 
                                          CategoryLabelPosition position, 
                                          Graphics2D g2) {
                                                
    RectangleInsets insets = getTickLabelInsets();
    Size2D size = block.calculateDimensions(g2);
    Rectangle2D box = new Rectangle2D.Double(
        0.0, 0.0, size.getWidth(), size.getHeight()
    );
    Shape rotatedBox = ShapeUtilities.rotateShape(
        box, position.getAngle(), 0.0f, 0.0f
    );
    double h = rotatedBox.getBounds2D().getHeight() 
               + insets.getTop() + insets.getBottom();
    return h;
    
}
 

/**
 * A utility method for determining the width of a text block.
 *
 * @param block  the text block.
 * @param position  the position.
 * @param g2  the graphics device.
 *
 * @return The width.
 */
protected double calculateTextBlockWidth(TextBlock block, 
                                         CategoryLabelPosition position, 
                                         Graphics2D g2) {
                                                
    RectangleInsets insets = getTickLabelInsets();
    Size2D size = block.calculateDimensions(g2);
    Rectangle2D box = new Rectangle2D.Double(
        0.0, 0.0, size.getWidth(), size.getHeight()
    );
    Shape rotatedBox = ShapeUtilities.rotateShape(
        box, position.getAngle(), 0.0f, 0.0f
    );
    double w = rotatedBox.getBounds2D().getWidth() 
               + insets.getTop() + insets.getBottom();
    return w;
    
}
 

/**
 * Draws a message to state that there is no data to plot.
 *
 * @param g2  the graphics device.
 * @param area  the area within which the plot should be drawn.
 */
protected void drawNoDataMessage(Graphics2D g2, Rectangle2D area) {
    Shape savedClip = g2.getClip();
    g2.clip(area);
    String message = this.noDataMessage;
    if (message != null) {
        g2.setFont(this.noDataMessageFont);
        g2.setPaint(this.noDataMessagePaint);
        TextBlock block = TextUtilities.createTextBlock(
                this.noDataMessage, this.noDataMessageFont, 
                this.noDataMessagePaint, 0.9f * (float) area.getWidth(), 
                new G2TextMeasurer(g2));
        block.draw(g2, (float) area.getCenterX(), (float) area.getCenterY(), 
                TextBlockAnchor.CENTER);
    }
    g2.setClip(savedClip);
}
 

/**
 * Paints the panel.
 *
 * @param g  the graphics device.
 */
public void paintComponent(final Graphics g) {

    super.paintComponent(g);
    final Graphics2D g2 = (Graphics2D) g;

    final Dimension size = getSize();
    final Insets insets = getInsets();
    final Rectangle2D available = new Rectangle2D.Double(insets.left, insets.top,
                                  size.getWidth() - insets.left - insets.right,
                                  size.getHeight() - insets.top - insets.bottom);

    final double x = available.getX();
    final double y = available.getY();
    final float width = (float) available.getWidth();
    final TextBlock block = TextUtilities.createTextBlock(
        this.text, this.font, Color.black, width, new G2TextMeasurer(g2)
    );
    g2.setPaint(Color.black);
    block.draw(g2, (float) x, (float) y, TextBlockAnchor.TOP_LEFT, 0.0f, 0.0f, 0.0);

}
 

/**
 * Two objects that are equal are required to return the same hashCode.
 */
@Test
public void testHashCode() {
    Comparable c1 = "C1";
    TextBlock tb1 = new TextBlock();
    tb1.addLine(new TextLine("Block 1"));
    tb1.addLine(new TextLine("Block 2"));
    TextBlockAnchor tba1 = TextBlockAnchor.CENTER;
    TextAnchor ta1 = TextAnchor.CENTER;

    CategoryTick t1 = new CategoryTick(c1, tb1, tba1, ta1, 1.0f);
    CategoryTick t2 = new CategoryTick(c1, tb1, tba1, ta1, 1.0f);
    assertTrue(t1.equals(t2));
    int h1 = t1.hashCode();
    int h2 = t2.hashCode();
    assertEquals(h1, h2);
}
 

/**
 * Draws a message to state that there is no data to plot.
 *
 * @param g2  the graphics device.
 * @param area  the area within which the plot should be drawn.
 */
protected void drawNoDataMessage(Graphics2D g2, Rectangle2D area) {
    Shape savedClip = g2.getClip();
    g2.clip(area);
    String message = this.noDataMessage;
    if (message != null) {
        g2.setFont(this.noDataMessageFont);
        g2.setPaint(this.noDataMessagePaint);
        TextBlock block = TextUtilities.createTextBlock(
                this.noDataMessage, this.noDataMessageFont,
                this.noDataMessagePaint, 0.9f * (float) area.getWidth(),
                new G2TextMeasurer(g2));
        block.draw(g2, (float) area.getCenterX(),
                (float) area.getCenterY(), TextBlockAnchor.CENTER);
    }
    g2.setClip(savedClip);
}
 

/**
 * Draws a message to state that there is no data to plot.
 *
 * @param g2  the graphics device.
 * @param area  the area within which the plot should be drawn.
 */
protected void drawNoDataMessage(Graphics2D g2, Rectangle2D area) {
    Shape savedClip = g2.getClip();
    g2.clip(area);
    String message = this.noDataMessage;
    if (message != null) {
        g2.setFont(this.noDataMessageFont);
        g2.setPaint(this.noDataMessagePaint);
        TextBlock block = TextUtilities.createTextBlock(
                this.noDataMessage, this.noDataMessageFont,
                this.noDataMessagePaint, 0.9f * (float) area.getWidth(),
                new G2TextMeasurer(g2));
        block.draw(g2, (float) area.getCenterX(),
                (float) area.getCenterY(), TextBlockAnchor.CENTER);
    }
    g2.setClip(savedClip);
}
 

/**
 * Two objects that are equal are required to return the same hashCode.
 */
@Test
public void testHashCode() {
    Comparable c1 = "C1";
    TextBlock tb1 = new TextBlock();
    tb1.addLine(new TextLine("Block 1"));
    tb1.addLine(new TextLine("Block 2"));
    TextBlockAnchor tba1 = TextBlockAnchor.CENTER;
    TextAnchor ta1 = TextAnchor.CENTER;

    CategoryTick t1 = new CategoryTick(c1, tb1, tba1, ta1, 1.0f);
    CategoryTick t2 = new CategoryTick(c1, tb1, tba1, ta1, 1.0f);
    assertTrue(t1.equals(t2));
    int h1 = t1.hashCode();
    int h2 = t2.hashCode();
    assertEquals(h1, h2);
}
 

/**
 * A utility method for determining the width of a text block.
 *
 * @param block  the text block.
 * @param position  the position.
 * @param g2  the graphics device.
 *
 * @return The width.
 */
protected double calculateTextBlockWidth(TextBlock block,
        CategoryLabelPosition position, Graphics2D g2) {
    RectangleInsets insets = getTickLabelInsets();
    Size2D size = block.calculateDimensions(g2);
    Rectangle2D box = new Rectangle2D.Double(0.0, 0.0, size.getWidth(),
            size.getHeight());
    Shape rotatedBox = ShapeUtilities.rotateShape(box, position.getAngle(),
            0.0f, 0.0f);
    double w = rotatedBox.getBounds2D().getWidth() + insets.getLeft()
            + insets.getRight();
    return w;
}
 

/**
 * Serialize an instance, restore it, and check for equality.
 */
@Test
public void testSerialization() {
    CategoryTick t1 = new CategoryTick("C1", new TextBlock(),
            TextBlockAnchor.CENTER, TextAnchor.CENTER, 1.5f);
    CategoryTick t2 = (CategoryTick) TestUtilities.serialised(t1);
    assertEquals(t1, t2);
}
 

/**
 * 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 tick.
 * 
 * @param category  the category.
 * @param label  the label.
 * @param labelAnchor  the label anchor.
 * @param rotationAnchor  the rotation anchor.
 * @param angle  the rotation angle (in radians).
 */
public CategoryTick(Comparable category,
                    TextBlock label,
                    TextBlockAnchor labelAnchor,
                    TextAnchor rotationAnchor,
                    double angle) {
                        
    super("", TextAnchor.CENTER, rotationAnchor, angle);
    this.category = category;
    this.label = label;
    this.labelAnchor = labelAnchor;
    
}
 

/**
 * A utility method for determining the width of a text block.
 *
 * @param block  the text block.
 * @param position  the position.
 * @param g2  the graphics device.
 *
 * @return The width.
 */
protected double calculateTextBlockWidth(TextBlock block,
        CategoryLabelPosition position, Graphics2D g2) {
    RectangleInsets insets = getTickLabelInsets();
    Size2D size = block.calculateDimensions(g2);
    Rectangle2D box = new Rectangle2D.Double(0.0, 0.0, size.getWidth(),
            size.getHeight());
    Shape rotatedBox = ShapeUtilities.rotateShape(box, position.getAngle(),
            0.0f, 0.0f);
    double w = rotatedBox.getBounds2D().getWidth() + insets.getLeft()
            + insets.getRight();
    return w;
}
 

/**
 * Confirm that cloning works.
 */
@Test
public void testCloning() throws CloneNotSupportedException {
    CategoryTick t1 = new CategoryTick("C1", new TextBlock(), 
            TextBlockAnchor.CENTER, TextAnchor.CENTER, 1.5f);
    CategoryTick t2 = (CategoryTick) t1.clone();
    assertTrue(t1 != t2);
    assertTrue(t1.getClass() == t2.getClass());
    assertTrue(t1.equals(t2));
}
 

/**
 * A utility method for determining the height of a text block.
 *
 * @param block  the text block.
 * @param position  the label position.
 * @param g2  the graphics device.
 *
 * @return The height.
 */
protected double calculateTextBlockHeight(TextBlock block,
        CategoryLabelPosition position, Graphics2D g2) {
    RectangleInsets insets = getTickLabelInsets();
    Size2D size = block.calculateDimensions(g2);
    Rectangle2D box = new Rectangle2D.Double(0.0, 0.0, size.getWidth(),
            size.getHeight());
    Shape rotatedBox = ShapeUtilities.rotateShape(box, position.getAngle(),
            0.0f, 0.0f);
    double h = rotatedBox.getBounds2D().getHeight()
               + insets.getTop() + insets.getBottom();
    return h;
}
 

/**
 * A utility method for determining the height of a text block.
 *
 * @param block  the text block.
 * @param position  the label position.
 * @param g2  the graphics device.
 *
 * @return The height.
 */
protected double calculateTextBlockHeight(TextBlock block,
        CategoryLabelPosition position, Graphics2D g2) {
    RectangleInsets insets = getTickLabelInsets();
    Size2D size = block.calculateDimensions(g2);
    Rectangle2D box = new Rectangle2D.Double(0.0, 0.0, size.getWidth(),
            size.getHeight());
    Shape rotatedBox = ShapeUtilities.rotateShape(box, position.getAngle(),
            0.0f, 0.0f);
    double h = rotatedBox.getBounds2D().getHeight()
               + insets.getTop() + insets.getBottom();
    return h;
}
 

/**
 * A utility method for determining the width of a text block.
 *
 * @param block  the text block.
 * @param position  the position.
 * @param g2  the graphics device.
 *
 * @return The width.
 */
protected double calculateTextBlockWidth(TextBlock block,
        CategoryLabelPosition position, Graphics2D g2) {
    RectangleInsets insets = getTickLabelInsets();
    Size2D size = block.calculateDimensions(g2);
    Rectangle2D box = new Rectangle2D.Double(0.0, 0.0, size.getWidth(),
            size.getHeight());
    Shape rotatedBox = ShapeUtilities.rotateShape(box, position.getAngle(),
            0.0f, 0.0f);
    double w = rotatedBox.getBounds2D().getWidth() + insets.getLeft()
            + insets.getRight();
    return w;
}
 

/**
 * A utility method for determining the height of a text block.
 *
 * @param block  the text block.
 * @param position  the label position.
 * @param g2  the graphics device.
 *
 * @return The height.
 */
protected double calculateTextBlockHeight(TextBlock block,
        CategoryLabelPosition position, Graphics2D g2) {
    RectangleInsets insets = getTickLabelInsets();
    Size2D size = block.calculateDimensions(g2);
    Rectangle2D box = new Rectangle2D.Double(0.0, 0.0, size.getWidth(),
            size.getHeight());
    Shape rotatedBox = ShapeUtilities.rotateShape(box, position.getAngle(),
            0.0f, 0.0f);
    double h = rotatedBox.getBounds2D().getHeight()
               + insets.getTop() + insets.getBottom();
    return h;
}
 

/**
 * Creates a new tick.
 *
 * @param category  the category.
 * @param label  the label.
 * @param labelAnchor  the label anchor.
 * @param rotationAnchor  the rotation anchor.
 * @param angle  the rotation angle (in radians).
 */
public CategoryTick(Comparable category,
                    TextBlock label,
                    TextBlockAnchor labelAnchor,
                    TextAnchor rotationAnchor,
                    double angle) {

    super("", TextAnchor.CENTER, rotationAnchor, angle);
    this.category = category;
    this.label = label;
    this.labelAnchor = labelAnchor;

}
 

/**
 * Confirm that cloning works.
 */
@Test
public void testCloning() throws CloneNotSupportedException {
    CategoryTick t1 = new CategoryTick("C1", new TextBlock(), 
            TextBlockAnchor.CENTER, TextAnchor.CENTER, 1.5f);
    CategoryTick t2 = (CategoryTick) t1.clone();
    assertTrue(t1 != t2);
    assertTrue(t1.getClass() == t2.getClass());
    assertTrue(t1.equals(t2));
}
 

/**
 * Serialize an instance, restore it, and check for equality.
 */
@Test
public void testSerialization() {
    CategoryTick t1 = new CategoryTick("C1", new TextBlock(),
            TextBlockAnchor.CENTER, TextAnchor.CENTER, 1.5f);
    CategoryTick t2 = (CategoryTick) TestUtilities.serialised(t1);
    assertEquals(t1, t2);
}
 

/**
 * Creates a new tick.
 *
 * @param category  the category.
 * @param label  the label.
 * @param labelAnchor  the label anchor.
 * @param rotationAnchor  the rotation anchor.
 * @param angle  the rotation angle (in radians).
 */
public CategoryTick(Comparable category,
                    TextBlock label,
                    TextBlockAnchor labelAnchor,
                    TextAnchor rotationAnchor,
                    double angle) {

    super("", TextAnchor.CENTER, rotationAnchor, angle);
    this.category = category;
    this.label = label;
    this.labelAnchor = labelAnchor;

}
 

/**
 * Creates a new tick.
 *
 * @param category  the category.
 * @param label  the label.
 * @param labelAnchor  the label anchor.
 * @param rotationAnchor  the rotation anchor.
 * @param angle  the rotation angle (in radians).
 */
public CategoryTick(Comparable category,
                    TextBlock label,
                    TextBlockAnchor labelAnchor,
                    TextAnchor rotationAnchor,
                    double angle) {

    super("", TextAnchor.CENTER, rotationAnchor, angle);
    this.category = category;
    this.label = label;
    this.labelAnchor = labelAnchor;

}