How to use

fireChangeEvent

method

in

org.jfree.chart.renderer.xy.XYAreaRenderer

/**
 * Sets a flag that controls whether or not outlines of the areas are drawn
 * and sends a {@link RendererChangeEvent} to all registered listeners.
 *
 * @param show  the flag.
 *
 * @see #isOutline()
 */
public void setOutline(boolean show) {
  this.showOutline = show;
  fireChangeEvent();
}

/**
 * Sets the flag that controls whether or not the series fill paint is
 * used to fill the area under the line and sends a
 * {@link RendererChangeEvent} to all listeners.
 *
 * @param use  the new flag value.
 *
 * @since 1.0.14
 */
public void setUseFillPaint(boolean use) {
  this.useFillPaint = use;
  fireChangeEvent();
}

/**
 * Sets a flag that controls whether or not outlines of the areas are drawn
 * and sends a {@link RendererChangeEvent} to all registered listeners.
 *
 * @param show  the flag.
 *
 * @see #isOutline()
 */
public void setOutline(boolean show) {
  this.showOutline = show;
  fireChangeEvent();
}

/**
 * Sets the flag that controls whether or not the series fill paint is
 * used to fill the area under the line and sends a
 * {@link RendererChangeEvent} to all listeners.
 *
 * @param use  the new flag value.
 *
 * @since 1.0.14
 */
public void setUseFillPaint(boolean use) {
  this.useFillPaint = use;
  fireChangeEvent();
}

/**
 * Sets the shape used as an area in each legend item and sends a
 * {@link RendererChangeEvent} to all registered listeners.
 *
 * @param area  the area (<code>null</code> not permitted).
 */
public void setLegendArea(Shape area) {
  if (area == null) {
    throw new IllegalArgumentException("Null 'area' argument.");
  }
  this.legendArea = area;
  fireChangeEvent();
}

/**
 * Sets the gradient paint transformer and sends a
 * {@link RendererChangeEvent} to all registered listeners.
 *
 * @param transformer  the transformer (<code>null</code> not permitted).
 *
 * @since 1.0.14
 */
public void setGradientTransformer(GradientPaintTransformer transformer) {
  if (transformer == null) {
    throw new IllegalArgumentException("Null 'transformer' argument.");
  }
  this.gradientTransformer = transformer;
  fireChangeEvent();
}

/**
 * Sets the shape used as an area in each legend item and sends a
 * {@link RendererChangeEvent} to all registered listeners.
 *
 * @param area  the area ({@code null} not permitted).
 */
public void setLegendArea(Shape area) {
  Args.nullNotPermitted(area, "area");
  this.legendArea = area;
  fireChangeEvent();
}

/**
 * Sets the gradient paint transformer and sends a
 * {@link RendererChangeEvent} to all registered listeners.
 *
 * @param transformer  the transformer ({@code null} not permitted).
 *
 * @since 1.0.14
 */
public void setGradientTransformer(GradientPaintTransformer transformer) {
  Args.nullNotPermitted(transformer, "transformer");
  this.gradientTransformer = transformer;
  fireChangeEvent();
}