netcharts.pro.event
Interface NFChartScrollListener

All Superinterfaces:

java.util.EventListener, NFChartActionListener

public interface NFChartScrollListener
extends NFChartActionListener

NFChartScrollListener interface can be implemented by any object that wants to be notified of scroll activity within a chart.

Method Summary

void	postScroll(java.lang.Object obj, double scrollMin, double scrollMax, double scaleMin, double scaleMax) Method called when a NFChartEvent.POSTSCROLL event occurs.
boolean	preScroll(java.lang.Object obj, double scrollMin, double scrollMax, double curScaleMin, double curScaleMax, double newScaleMin, double newScaleMax) Method called when a NFChartEvent.PRESCROLL event occurs.

Methods inherited from interface netcharts.pro.event.NFChartActionListener

chartActionPerformed

Method Detail

preScroll

boolean preScroll(java.lang.Object obj,
                  double scrollMin,
                  double scrollMax,
                  double curScaleMin,
                  double curScaleMax,
                  double newScaleMin,
                  double newScaleMax)

Method called when a NFChartEvent.PRESCROLL event occurs. This method will be called in place of chartActionPerformed. If a return value of "true" is specified, then the scroll action will be allowed. Otherwise, it will be aborted.

Parameters:

obj - The object being scrolled.

scrollMin - The minimum scroll value.

scrollMax - The maximum scroll value.

curScrollMin - The current minimum scroll value.

curScrollMax - The current maximum scroll value.

newScrollMin - The new minimum scroll value.

newScrollMax - The new maximum scroll value.

Returns:

Whether to proceed with the scroll or not.

postScroll

void postScroll(java.lang.Object obj,
                double scrollMin,
                double scrollMax,
                double scaleMin,
                double scaleMax)

Method called when a NFChartEvent.POSTSCROLL event occurs. This method will be called in place of chartActionPerformed.

Parameters:

obj - The object scrolled.

scrollMin - The minimum scroll value.

scrollMax - The maximum scroll value.

scaleMin - The minimum scale value.

scaleMax - The maximum scale value.