Detailed Description

An object that creates and plays a standalone instance of an AudioProcessor.

The object will create your processor using the same createPluginFilter() function that the other plugin wrappers use, and will run it through the computer's audio/MIDI devices using AudioDeviceManager and AudioProcessorPlayer.

Inheritance diagram for juce::StandalonePluginHolder:

Classes
struct	PluginInOuts
	Structure used for the number of inputs and outputs. More...

Public Member Functions
	StandalonePluginHolder (PropertySet settingsToUse, bool takeOwnershipOfSettings=true, const String &preferredDefaultDeviceName=String(), const AudioDeviceManager::AudioDeviceSetup preferredSetupOptions=nullptr, const Array< PluginInOuts > &channels=Array< PluginInOuts >(), bool shouldAutoOpenMidiDevices=true)
	Creates an instance of the default plugin.
void	init (bool enableAudioInput, const String &preferredDefaultDeviceName)
	~StandalonePluginHolder () override
virtual void	createPlugin ()
virtual void	deletePlugin ()
int	getNumInputChannels () const
int	getNumOutputChannels () const
Value &	getMuteInputValue ()
bool	getProcessorHasPotentialFeedbackLoop () const
void	valueChanged (Value &value) override
	Called when a Value object is changed.
File	getLastFile () const
void	setLastFile (const FileChooser &fc)
void	askUserToSaveState (const String &fileSuffix=String())
	Pops up a dialog letting the user save the processor's state to a file.
void	askUserToLoadState (const String &fileSuffix=String())
	Pops up a dialog letting the user re-load the processor's state from a file.
void	startPlaying ()
void	stopPlaying ()
void	showAudioSettingsDialog ()
	Shows an audio properties dialog box modally.
void	saveAudioDeviceState ()
void	reloadAudioDeviceState (bool enableAudioInput, const String &preferredDefaultDeviceName, const AudioDeviceManager::AudioDeviceSetup *preferredSetupOptions)
void	savePluginState ()
void	reloadPluginState ()
void	switchToHostApplication ()
bool	isInterAppAudioConnected ()
Image	getIAAHostIcon (int size)

Static Public Member Functions
static String	getFilePatterns (const String &fileSuffix)
static StandalonePluginHolder *	getInstance ()

Public Attributes
OptionalScopedPointer< PropertySet >	settings
std::unique_ptr< AudioProcessor >	processor
AudioDeviceManager	deviceManager
AudioProcessorPlayer	player
Array< PluginInOuts >	channelConfiguration
bool	processorHasPotentialFeedbackLoop = true
std::atomic< bool >	muteInput { true }
Value	shouldMuteInput
AudioBuffer< float >	emptyBuffer
bool	autoOpenMidiDevices
std::unique_ptr< AudioDeviceManager::AudioDeviceSetup >	options
Array< MidiDeviceInfo >	lastMidiDevices
std::unique_ptr< FileChooser >	stateFileChooser
ScopedMessageBox	messageBox

Constructors and Destructors

◆ StandalonePluginHolder()

juce::StandalonePluginHolder::StandalonePluginHolder	(	PropertySet *	settingsToUse,
		bool	takeOwnershipOfSettings = true,
		const String &	preferredDefaultDeviceName = String(),
		const AudioDeviceManager::AudioDeviceSetup *	preferredSetupOptions = nullptr,
		const Array< PluginInOuts > &	channels = Array<PluginInOuts>(),
		bool	shouldAutoOpenMidiDevices = true )

Creates an instance of the default plugin.

The settings object can be a PropertySet that the class should use to store its settings - the takeOwnershipOfSettings indicates whether this object will delete the settings automatically when no longer needed. The settings can also be nullptr.

A default device name can be passed in.

Preferably a complete setup options object can be used, which takes precedence over the preferredDefaultDeviceName and allows you to select the input & output device names, sample rate, buffer size etc.

In all instances, the settingsToUse will take precedence over the "preferred" options if not null.

References autoOpenMidiDevices, channelConfiguration, init(), juce::RuntimePermissions::isGranted(), isInterAppAudioConnected(), juce::RuntimePermissions::isRequired(), options, processor, juce::RuntimePermissions::recordAudio, juce::RuntimePermissions::request(), settings, and shouldMuteInput.

Referenced by getInstance().

◆ ~StandalonePluginHolder()

juce::StandalonePluginHolder::~StandalonePluginHolder ( )

override

References juce::Timer::stopTimer().

Member Functions

◆ init()

void juce::StandalonePluginHolder::init	(	bool	enableAudioInput,
		const String &	preferredDefaultDeviceName )

References autoOpenMidiDevices, options, reloadPluginState(), startPlaying(), and juce::Timer::startTimer().

Referenced by StandalonePluginHolder().

◆ createPlugin()

virtual void juce::StandalonePluginHolder::createPlugin ( )

virtual

◆ deletePlugin()

virtual void juce::StandalonePluginHolder::deletePlugin ( )

virtual

◆ getNumInputChannels()

int juce::StandalonePluginHolder::getNumInputChannels ( ) const

References channelConfiguration, and processor.

Referenced by reloadAudioDeviceState().

◆ getNumOutputChannels()

int juce::StandalonePluginHolder::getNumOutputChannels ( ) const

References channelConfiguration, and processor.

Referenced by reloadAudioDeviceState().

◆ getFilePatterns()

String juce::StandalonePluginHolder::getFilePatterns ( const String & fileSuffix )

static

References juce::String::isEmpty(), and juce::String::startsWithChar().

Referenced by askUserToLoadState(), and askUserToSaveState().

◆ getMuteInputValue()

Value & juce::StandalonePluginHolder::getMuteInputValue ( )

References shouldMuteInput.

◆ getProcessorHasPotentialFeedbackLoop()

bool juce::StandalonePluginHolder::getProcessorHasPotentialFeedbackLoop ( ) const

References processorHasPotentialFeedbackLoop.

◆ valueChanged()

void juce::StandalonePluginHolder::valueChanged ( Value & value )

overridevirtual

Called when a Value object is changed.

Note that the Value object passed as a parameter may not be exactly the same object that you registered the listener with - it might be a copy that refers to the same underlying ValueSource. To find out, you can call Value::refersToSameSourceAs().

Implements juce::Value::Listener.

References juce::Value::getValue(), and muteInput.

◆ getLastFile()

File juce::StandalonePluginHolder::getLastFile ( ) const

References juce::File::getSpecialLocation(), settings, and juce::File::userDocumentsDirectory.

Referenced by askUserToLoadState(), and askUserToSaveState().

◆ setLastFile()

void juce::StandalonePluginHolder::setLastFile ( const FileChooser & fc )

References juce::File::getFullPathName(), juce::FileChooser::getResult(), and settings.

Referenced by askUserToLoadState(), and askUserToSaveState().

◆ askUserToSaveState()

void juce::StandalonePluginHolder::askUserToSaveState ( const String & fileSuffix = String() )

Pops up a dialog letting the user save the processor's state to a file.

References juce::FileBrowserComponent::canSelectFiles, juce::MemoryBlock::getData(), getFilePatterns(), getLastFile(), juce::FileChooser::getResult(), juce::MemoryBlock::getSize(), juce::MessageBoxOptions::makeOptionsOk(), messageBox, processor, juce::File::replaceWithData(), juce::FileBrowserComponent::saveMode, setLastFile(), juce::AlertWindow::showScopedAsync(), stateFileChooser, juce::FileBrowserComponent::warnAboutOverwriting, and juce::AlertWindow::WarningIcon.

◆ askUserToLoadState()

void juce::StandalonePluginHolder::askUserToLoadState ( const String & fileSuffix = String() )

Pops up a dialog letting the user re-load the processor's state from a file.

References juce::FileBrowserComponent::canSelectFiles, juce::MemoryBlock::getData(), getFilePatterns(), getLastFile(), juce::FileChooser::getResult(), juce::MemoryBlock::getSize(), juce::File::loadFileAsData(), juce::MessageBoxOptions::makeOptionsOk(), messageBox, juce::FileBrowserComponent::openMode, processor, setLastFile(), juce::AlertWindow::showScopedAsync(), stateFileChooser, and juce::AlertWindow::WarningIcon.

◆ startPlaying()

void juce::StandalonePluginHolder::startPlaying ( )

References deviceManager, player, and processor.

Referenced by init().

◆ stopPlaying()

void juce::StandalonePluginHolder::stopPlaying ( )

References player.

◆ showAudioSettingsDialog()

void juce::StandalonePluginHolder::showAudioSettingsDialog ( )

Shows an audio properties dialog box modally.

References juce::ResizableWindow::backgroundColourId, channelConfiguration, juce::DialogWindow::LaunchOptions::content, deviceManager, juce::DialogWindow::LaunchOptions::dialogBackgroundColour, juce::DialogWindow::LaunchOptions::dialogTitle, juce::DialogWindow::LaunchOptions::escapeKeyTriggersCloseButton, juce::jmax(), juce::DialogWindow::LaunchOptions::launchAsync(), processor, juce::DialogWindow::LaunchOptions::resizable, and juce::DialogWindow::LaunchOptions::useNativeTitleBar.

◆ saveAudioDeviceState()

void juce::StandalonePluginHolder::saveAudioDeviceState ( )

References deviceManager, settings, and shouldMuteInput.

◆ reloadAudioDeviceState()

void juce::StandalonePluginHolder::reloadAudioDeviceState	(	bool	enableAudioInput,
		const String &	preferredDefaultDeviceName,
		const AudioDeviceManager::AudioDeviceSetup *	preferredSetupOptions )