ChangeBroadcaster Class Reference

Manages a list of ChangeListeners, and can send them messages. More...

Inherited by AudioDeviceManager, AudioThumbnail, AudioTransportSource, ColourSelector, ComponentAnimator, DirectoryContentsList, FileBasedDocument, FileBrowserComponent, KeyPressMappingSet, KnownPluginList, MidiKeyboardComponent, PropertiesFile, SelectedItemSet< SelectableItemType >, TabbedButtonBar, and UndoManager.

List of all members.

Public Member Functions
	ChangeBroadcaster () throw ()
	Creates an ChangeBroadcaster.
virtual	~ChangeBroadcaster ()
	Destructor.
void	addChangeListener (ChangeListener *listener) throw ()
	Adds a listener to the list.
void	removeChangeListener (ChangeListener *listener) throw ()
	Removes a listener from the list.
void	removeAllChangeListeners () throw ()
	Removes all listeners from the list.
void	sendChangeMessage (void *objectThatHasChanged) throw ()
	Broadcasts a change message to all the registered listeners.
void	sendSynchronousChangeMessage (void *objectThatHasChanged)
	Sends a synchronous change message to all the registered listeners.
void	dispatchPendingMessages ()
	If a change message has been sent but not yet dispatched, this will use sendSynchronousChangeMessage() to make the callback immediately.

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Detailed Description

Manages a list of ChangeListeners, and can send them messages.

To quickly add methods to your class that can add/remove change listeners and broadcast to them, you can derive from this.

See also:

ChangeListenerList, ChangeListener

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Constructor & Destructor Documentation

ChangeBroadcaster::ChangeBroadcaster

(

)

throw ()

Creates an ChangeBroadcaster.

virtual ChangeBroadcaster::~ChangeBroadcaster

(

)

[virtual]

Destructor.

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Member Function Documentation

void ChangeBroadcaster::addChangeListener

(

ChangeListener *

listener

)

throw ()

Adds a listener to the list.

(Trying to add a listener that's already on the list will have no effect).

void ChangeBroadcaster::removeChangeListener

(

ChangeListener *

listener

)

throw ()

Removes a listener from the list.

If the listener isn't on the list, this won't have any effect.

void ChangeBroadcaster::removeAllChangeListeners

(

)

throw ()

Removes all listeners from the list.

void ChangeBroadcaster::sendChangeMessage

(

void *

objectThatHasChanged

)

throw ()

Broadcasts a change message to all the registered listeners.

The message will be delivered asynchronously by the event thread, so this method will not directly call any of the listeners. For a synchronous message, use sendSynchronousChangeMessage().

See also:

ChangeListenerList::sendActionMessage

Referenced by SelectedItemSet< SelectableItemType >::changed().

void ChangeBroadcaster::sendSynchronousChangeMessage

(

void *

objectThatHasChanged

)

Sends a synchronous change message to all the registered listeners.

See also:

ChangeListenerList::sendSynchronousChangeMessage

Referenced by SelectedItemSet< SelectableItemType >::changed().

void ChangeBroadcaster::dispatchPendingMessages

(

)

If a change message has been sent but not yet dispatched, this will use sendSynchronousChangeMessage() to make the callback immediately.

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

• juce_ChangeBroadcaster.h