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org.jfree.chart.panel
Interface Overlay

All Known Implementing Classes:
CrosshairOverlay

public interface Overlay

Defines the interface for an overlay that can be added to a ChartPanel.

Since:
1.0.13

Method Summary
 void addChangeListener(OverlayChangeListener listener)
          Registers a change listener with the overlay.
 void paintOverlay(java.awt.Graphics2D g2, ChartPanel chartPanel)
          Paints the crosshairs in the layer.
 void removeChangeListener(OverlayChangeListener listener)
          Deregisters a listener from the overlay.
 

Method Detail

paintOverlay

void paintOverlay(java.awt.Graphics2D g2,
                  ChartPanel chartPanel)
Paints the crosshairs in the layer.

Parameters:
g2 - the graphics target.
chartPanel - the chart panel.

addChangeListener

void addChangeListener(OverlayChangeListener listener)
Registers a change listener with the overlay.

Parameters:
listener - the listener.

removeChangeListener

void removeChangeListener(OverlayChangeListener listener)
Deregisters a listener from the overlay.

Parameters:
listener - the listener.

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