Package noaa.coastwatch.gui

Class TimedOpacityHelper

java.lang.Object

noaa.coastwatch.gui.TimedOpacityHelper

All Implemented Interfaces:

OpacityHelper

public class TimedOpacityHelper
extends Object
implements OpacityHelper

Since:

3.8.1

Author:

Peter Hollemans

Constructor Summary

Constructors

Constructor	Description
TimedOpacityHelper(Component component, float minimumAlpha, int maximumInactivity)	Creates a new helper that updates the opacity of the specified container after a timeout period with no mouse movement.

Method Summary

Modifier and Type	Method	Description
float	getOpacity()
void	setOpacity(float alpha)
void	setupGraphics(Graphics g)

Methods inherited from class java.lang.Object

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

Constructor Details

TimedOpacityHelper

public TimedOpacityHelper(Component component,
 float minimumAlpha,
 int maximumInactivity)

Creates a new helper that updates the opacity of the specified container after a timeout period with no mouse movement.

Parameters:

component - the component to update. The component and its children must use the helper to paint using the new opacity value via setupGraphics(java.awt.Graphics).

minimumAlpha - the minimum alpha value to use.

maximumInactivity - the maximum inactivity period in milliseconds.

Method Details

setOpacity

public void setOpacity(float alpha)

Specified by:

setOpacity in interface OpacityHelper

getOpacity

public float getOpacity()

Specified by:

getOpacity in interface OpacityHelper

setupGraphics

public void setupGraphics(Graphics g)

Specified by:

setupGraphics in interface OpacityHelper