How to use

ShortTextTitle

in

org.jfree.chart.title

/**
 * Arranges the content for this title assuming no bounds on the width
 * or the height, and returns the required size.
 *
 * @param g2  the graphics target.
 *
 * @return The content size.
 */
protected Size2D arrangeNN(Graphics2D g2) {
  Range max = new Range(0.0, Float.MAX_VALUE);
  return arrangeRR(g2, max, max);
}

/**
 * Draws the title using the current font and paint.
 *
 * @param g2  the graphics target.
 * @param area  the title area.
 * @param params  optional parameters (ignored here).
 *
 * @return <code>null</code>.
 */
public Object draw(Graphics2D g2, Rectangle2D area, Object params) {
  if (area.isEmpty()) {
    return null;
  }
  area = trimMargin(area);
  drawBorder(g2, area);
  area = trimBorder(area);
  area = trimPadding(area);
  g2.setFont(getFont());
  g2.setPaint(getPaint());
  TextUtilities.drawAlignedString(getText(), g2, (float) area.getMinX(),
      (float) area.getMinY(), TextAnchor.TOP_LEFT);
  return null;
}

RectangleConstraint cc = toContentConstraint(constraint);
LengthConstraintType w = cc.getWidthConstraintType();
LengthConstraintType h = cc.getHeightConstraintType();
if (w == LengthConstraintType.NONE) {
  if (h == LengthConstraintType.NONE) {
    contentSize = arrangeNN(g2);
    contentSize = arrangeRN(g2, cc.getWidthRange());
    contentSize = arrangeRR(g2, cc.getWidthRange(),
        cc.getHeightRange());
    contentSize = arrangeFN(g2, cc.getWidth());
  return new Size2D(calculateTotalWidth(contentSize.getWidth()),
      calculateTotalHeight(contentSize.getHeight()));

/**
 * Arranges the content for this title assuming a fixed width and no bounds
 * on the height, and returns the required size.  This will reflect the
 * fact that a text title positioned on the left or right of a chart will
 * be rotated by 90 degrees.
 *
 * @param g2  the graphics target.
 * @param w  the width.
 *
 * @return The content size.
 */
@Override
protected Size2D arrangeFN(Graphics2D g2, double w) {
  g2.setFont(getFont());
  FontMetrics fm = g2.getFontMetrics(getFont());
  Rectangle2D bounds = TextUtils.getTextBounds(getText(), g2, fm);
  if (bounds.getWidth() <= w) {
    return new Size2D(w, bounds.getHeight());
  }
  else {
    return new Size2D(0.0, 0.0);
  }
}

/**
 * Arranges the content for this title assuming a range constraint for the
 * width and no bounds on the height, and returns the required size.
 *
 * @param g2  the graphics target.
 * @param widthRange  the range for the width.
 *
 * @return The content size.
 */
protected Size2D arrangeRN(Graphics2D g2, Range widthRange) {
  Size2D s = arrangeNN(g2);
  if (widthRange.contains(s.getWidth())) {
    return s;
  }
  double ww = widthRange.constrain(s.getWidth());
  return arrangeFN(g2, ww);
}

RectangleConstraint cc = toContentConstraint(constraint);
LengthConstraintType w = cc.getWidthConstraintType();
LengthConstraintType h = cc.getHeightConstraintType();
if (w == LengthConstraintType.NONE) {
  if (h == LengthConstraintType.NONE) {
    contentSize = arrangeNN(g2);
    contentSize = arrangeRN(g2, cc.getWidthRange());
    contentSize = arrangeRR(g2, cc.getWidthRange(),
        cc.getHeightRange());
    contentSize = arrangeFN(g2, cc.getWidth());
  return new Size2D(calculateTotalWidth(contentSize.getWidth()),
      calculateTotalHeight(contentSize.getHeight()));

/**
 * Arranges the content for this title assuming a fixed width and no bounds
 * on the height, and returns the required size.  This will reflect the
 * fact that a text title positioned on the left or right of a chart will
 * be rotated by 90 degrees.
 *
 * @param g2  the graphics target.
 * @param w  the width.
 *
 * @return The content size.
 */
protected Size2D arrangeFN(Graphics2D g2, double w) {
  g2.setFont(getFont());
  FontMetrics fm = g2.getFontMetrics(getFont());
  Rectangle2D bounds = TextUtilities.getTextBounds(getText(), g2, fm);
  if (bounds.getWidth() <= w) {
    return new Size2D(w, bounds.getHeight());
  }
  else {
    return new Size2D(0.0, 0.0);
  }
}

/**
 * Arranges the content for this title assuming a range constraint for the
 * width and no bounds on the height, and returns the required size.
 *
 * @param g2  the graphics target.
 * @param widthRange  the range for the width.
 *
 * @return The content size.
 */
@Override
protected Size2D arrangeRN(Graphics2D g2, Range widthRange) {
  Size2D s = arrangeNN(g2);
  if (widthRange.contains(s.getWidth())) {
    return s;
  }
  double ww = widthRange.constrain(s.getWidth());
  return arrangeFN(g2, ww);
}

/**
 * Draws the title using the current font and paint.
 *
 * @param g2  the graphics target.
 * @param area  the title area.
 * @param params  optional parameters (ignored here).
 *
 * @return {@code null}.
 */
@Override
public Object draw(Graphics2D g2, Rectangle2D area, Object params) {
  if (area.isEmpty()) {
    return null;
  }
  area = trimMargin(area);
  drawBorder(g2, area);
  area = trimBorder(area);
  area = trimPadding(area);
  g2.setFont(getFont());
  g2.setPaint(getPaint());
  TextUtils.drawAlignedString(getText(), g2, (float) area.getMinX(),
      (float) area.getMinY(), TextAnchor.TOP_LEFT);
  return null;
}

/**
 * Returns the content size for the title.
 *
 * @param g2  the graphics device.
 * @param widthRange  the width range.
 * @param heightRange  the height range.
 *
 * @return The content size.
 */
@Override
protected Size2D arrangeRR(Graphics2D g2, Range widthRange,
    Range heightRange) {
  g2.setFont(getFont());
  FontMetrics fm = g2.getFontMetrics(getFont());
  Rectangle2D bounds = TextUtils.getTextBounds(getText(), g2, fm);
  if (bounds.getWidth() <= widthRange.getUpperBound()
      && bounds.getHeight() <= heightRange.getUpperBound()) {
    return new Size2D(bounds.getWidth(), bounds.getHeight());
  }
  else {
    return new Size2D(0.0, 0.0);
  }
}

/**
 * Arranges the content for this title assuming no bounds on the width
 * or the height, and returns the required size.
 *
 * @param g2  the graphics target.
 *
 * @return The content size.
 */
@Override
protected Size2D arrangeNN(Graphics2D g2) {
  Range max = new Range(0.0, Float.MAX_VALUE);
  return arrangeRR(g2, max, max);
}

/**
 * Returns the content size for the title.
 *
 * @param g2  the graphics device.
 * @param widthRange  the width range.
 * @param heightRange  the height range.
 *
 * @return The content size.
 */
protected Size2D arrangeRR(Graphics2D g2, Range widthRange,
    Range heightRange) {
  g2.setFont(getFont());
  FontMetrics fm = g2.getFontMetrics(getFont());
  Rectangle2D bounds = TextUtilities.getTextBounds(getText(), g2, fm);
  if (bounds.getWidth() <= widthRange.getUpperBound()
      && bounds.getHeight() <= heightRange.getUpperBound()) {
    return new Size2D(bounds.getWidth(), bounds.getHeight());
  }
  else {
    return new Size2D(0.0, 0.0);
  }
}