org.jfree.chart

Class MouseWheelHandler

java.lang.Object

org.jfree.chart.MouseWheelHandler

All Implemented Interfaces:

java.awt.event.MouseWheelListener, java.io.Serializable, java.util.EventListener

public class MouseWheelHandler
extends java.lang.Object
implements java.awt.event.MouseWheelListener, java.io.Serializable

A class that handles mouse wheel events for the ChartPanel class.

Since:

1.0.13

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
(package private) double	zoomFactor The zoom factor.

Constructor Summary

Constructors

Constructor and Description
MouseWheelHandler(ChartPanel chartPanel) Creates a new instance for the specified chart panel.

Method Summary

Modifier and Type	Method and Description
double	getZoomFactor() Returns the current zoom factor.
void	mouseWheelMoved(java.awt.event.MouseWheelEvent e) Handles a mouse wheel event from the underlying chart panel.
void	setZoomFactor(double zoomFactor) Sets the zoom factor.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

zoomFactor

double zoomFactor

The zoom factor.

Constructor Detail

MouseWheelHandler

public MouseWheelHandler(ChartPanel chartPanel)

Creates a new instance for the specified chart panel.

Parameters:

chartPanel - the chart panel (null not permitted).

Method Detail

getZoomFactor

public double getZoomFactor()

Returns the current zoom factor. The default value is 0.10 (ten percent).

Returns:

The zoom factor.

See Also:

setZoomFactor(double)

setZoomFactor

public void setZoomFactor(double zoomFactor)

Sets the zoom factor.

Parameters:

zoomFactor - the zoom factor.

See Also:

getZoomFactor()

mouseWheelMoved

public void mouseWheelMoved(java.awt.event.MouseWheelEvent e)

Handles a mouse wheel event from the underlying chart panel.

Specified by:

mouseWheelMoved in interface java.awt.event.MouseWheelListener

Parameters:

e - the event.