de.pxlab.gui
Interface ChartListener

All Known Implementing Classes:

ColorAdjustmentChart, JChAdjustmentChart, LabAdjustmentChart, LuvAdjustmentChart, SpectralDistributionChart, YrbAdjustmentChart, YxyAdjustmentChart

public interface ChartListener

A ChartListener gets a message whenever the current position in the Chart where the listener is registered has been changed. The ChartListener has to do two things: (1) consume the new position coordinates and (2) report whether it is willing to accept the new coordinates. Note that ChartListeners register with the Chart since there is no explicit ChartModel. The chart's model actually consists of two AxisModels. However, the chart client usually will not be able to decide about the validity of new coordinates if only a single coordinate is available. Thus the ChartListener must not register with two AxisModels but with the Chart in order to always get both coordinates.

Version:

0.2.0

See Also:

Chart

Method Summary

boolean

chartValueChanged(double x, double y) The Chart sends the new coordinates (x,y) to the ChartListener.

Method Detail

chartValueChanged

boolean chartValueChanged(double x,
                          double y)

The Chart sends the new coordinates (x,y) to the ChartListener. If the ChartListener is willing to accept these coordinates then it returns true.