visad
Class DisplayActivity

java.lang.Object
  visad.DisplayActivity

public class DisplayActivity
extends Object

Manage busy/idle handlers for a Display

Constructor Summary

DisplayActivity(DisplayImpl dpy)
Manage busy/idle handlers for a Display, using a default idle time of 0.25 second.

DisplayActivity(DisplayImpl dpy, int milliseconds)
Manage busy/idle handlers for a Display, using the specified idle time, with the minimum idle time being 100 milliseconds.

Method Summary

void	addHandler(ActivityHandler ah) Add a new activity handler.
void	destroy() Stop the idle timer and any running tasks.
void	removeHandler(ActivityHandler ah) Remove an activity handler.
void	updateBusyStatus() Notify the activity monitor that work has been done.

Methods inherited from class java.lang.Object

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

Constructor Detail

DisplayActivity

public DisplayActivity(DisplayImpl dpy)

Manage busy/idle handlers for a Display, using a default idle time of 0.25 second.

Parameters:

dpy - Display to manage.

DisplayActivity

public DisplayActivity(DisplayImpl dpy,
                       int milliseconds)

Manage busy/idle handlers for a Display, using the specified idle time, with the minimum idle time being 100 milliseconds.

Parameters:

dpy - Display to manage.

milliseconds - Number of milliseconds to wait before the Display is considered idle.

Method Detail

destroy

public void destroy()

Stop the idle timer and any running tasks.

addHandler

public void addHandler(ActivityHandler ah)
                throws VisADException

Add a new activity handler.

Parameters:

ah - ActivityHandler to add

Throws:

VisADException - no handler list

removeHandler

public void removeHandler(ActivityHandler ah)
                   throws VisADException

Remove an activity handler.

Parameters:

ah - ActivityHandler to remove

Throws:

VisADException - no handler list

updateBusyStatus

public void updateBusyStatus()

Notify the activity monitor that work has been done.