ChangeListener Class Reference

Receives change event callbacks that are sent out by a ChangeBroadcaster. More...

Inherited by AudioDeviceSelectorComponent, FileListComponent [private], and PluginListComponent.

List of all members.

Public Member Functions
virtual	~ChangeListener ()
	Destructor.
virtual void	changeListenerCallback (ChangeBroadcaster *source)=0
	Your subclass should implement this method to receive the callback.

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Detailed Description

Receives change event callbacks that are sent out by a ChangeBroadcaster.

A ChangeBroadcaster keeps a set of listeners to which it broadcasts a message when the ChangeBroadcaster::sendChangeMessage() method is called. A subclass of ChangeListener is used to receive these callbacks.

Note that the major difference between an ActionListener and a ChangeListener is that for a ChangeListener, multiple changes will be coalesced into fewer callbacks, but ActionListeners perform one callback for every event posted.

See also:

ChangeBroadcaster, ActionListener

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Constructor & Destructor Documentation

virtual ChangeListener::~ChangeListener

(

)

[virtual]

Destructor.

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Member Function Documentation

virtual void ChangeListener::changeListenerCallback

(

ChangeBroadcaster *

source )

[pure virtual]

Your subclass should implement this method to receive the callback.

Parameters:

source

the ChangeBroadcaster that triggered the callback.

Implemented in PluginListComponent, FileListComponent, and AudioDeviceSelectorComponent.

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The documentation for this class was generated from the following file:

• juce_ChangeListener.h