Receives change event callbacks that are sent out by a ChangeBroadcaster. More...
#include <juce_ChangeListener.h>
Public Member Functions | |
virtual | ~ChangeListener ()=default |
Destructor. More... | |
virtual void | changeListenerCallback (ChangeBroadcaster *source)=0 |
Your subclass should implement this method to receive the callback. More... | |
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.
@tags{Events}
|
virtualdefault |
Destructor.
|
pure virtual |
Your subclass should implement this method to receive the callback.
source | the ChangeBroadcaster that triggered the callback. |
Implemented in juce::SidePanel, juce::PluginListComponent, juce::AudioDeviceSelectorComponent, and juce::FileListComponent.