juce::AudioProcessor::ParameterChangeForwarder Class Reference

#include <juce_AudioProcessor.h>

Inheritance diagram for juce::AudioProcessor::ParameterChangeForwarder:

Collaboration diagram for juce::AudioProcessor::ParameterChangeForwarder:

Public Member Functions
	ParameterChangeForwarder (AudioProcessor *o)
	ParameterChangeForwarder (const ParameterChangeForwarder &other)
ParameterChangeForwarder &	operator= (const ParameterChangeForwarder &other)
void	parameterGestureChanged (int, bool) override
	Indicates that a parameter change gesture has started.
void	parameterValueChanged (int, float) override
	Receives a callback when a parameter has been changed.

Private Attributes
AudioProcessor *	owner = nullptr

Detailed Description

Used to convert new-style per-parameter callbacks into old-style processor-change callbacks. This type will be removed in the future!

Constructor & Destructor Documentation

ParameterChangeForwarder() [1/2]

juce::AudioProcessor::ParameterChangeForwarder::ParameterChangeForwarder ( AudioProcessor *  o )

inlineexplicit

ParameterChangeForwarder() [2/2]

juce::AudioProcessor::ParameterChangeForwarder::ParameterChangeForwarder ( const ParameterChangeForwarder &  other )

inline

Member Function Documentation

operator=()

ParameterChangeForwarder & juce::AudioProcessor::ParameterChangeForwarder::operator= ( const ParameterChangeForwarder &  other )

inline

References owner.

parameterGestureChanged()

void juce::AudioProcessor::ParameterChangeForwarder::parameterGestureChanged ( int  parameterIndex, bool  gestureIsStarting  )

overridevirtual

Indicates that a parameter change gesture has started.

E.g. if the user is dragging a slider, this would be called with gestureIsStarting being true when they first press the mouse button, and it will be called again with gestureIsStarting being false when they release it.

IMPORTANT NOTE: This will be called synchronously, and many audio processors will call it during their audio callback. This means that not only has your handler code got to be completely thread-safe, but it's also got to be VERY fast, and avoid blocking. If you need to handle this event on your message thread, use this callback to trigger an AsyncUpdater or ChangeBroadcaster which you can respond to later on the message thread.

Implements juce::AudioProcessorParameter::Listener.

parameterValueChanged()

void juce::AudioProcessor::ParameterChangeForwarder::parameterValueChanged ( int  parameterIndex, float  newValue  )

overridevirtual

Receives a callback when a parameter has been changed.

IMPORTANT NOTE: This will be called synchronously when a parameter changes, and many audio processors will change their parameter during their audio callback. This means that not only has your handler code got to be completely thread-safe, but it's also got to be VERY fast, and avoid blocking. If you need to handle this event on your message thread, use this callback to trigger an AsyncUpdater or ChangeBroadcaster which you can respond to on the message thread.

Implements juce::AudioProcessorParameter::Listener.

Member Data Documentation

owner

AudioProcessor* juce::AudioProcessor::ParameterChangeForwarder::owner = nullptr

private

Referenced by operator=().

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

• juce_AudioProcessor.h