/**
* Returns a rectangle that encloses the axis label. This is typically used for layout purposes
* (it gives the maximum dimensions of the label).
*
* @param g2 the graphics device.
* @param edge the edge of the plot area along which the axis is measuring.
* @return The enclosing rectangle.
*/
protected Rectangle2D getLabelEnclosure(Graphics2D g2, RectangleEdge edge) {
Rectangle2D result = new Rectangle2D.Double();
String axisLabel = getLabel();
if (axisLabel != null && !axisLabel.equals("")) {
FontMetrics fm = g2.getFontMetrics(getLabelFont());
Rectangle2D bounds = TextUtilities.getTextBounds(axisLabel, g2, fm);
RectangleInsets insets = getLabelInsets();
bounds = insets.createOutsetRectangle(bounds);
double angle = getLabelAngle();
if (edge == RectangleEdge.LEFT || edge == RectangleEdge.RIGHT) {
angle = angle - Math.PI / 2.0;
}
double x = bounds.getCenterX();
double y = bounds.getCenterY();
AffineTransform transformer = AffineTransform.getRotateInstance(angle, x, y);
Shape labelBounds = transformer.createTransformedShape(bounds);
result = labelBounds.getBounds2D();
}
return result;
}
