juce::TimedCallback Class Reference

Detailed Description

Utility class wrapping a single non-null callback called by a Timer.

You can use the usual Timer functions to start and stop the TimedCallback. Deleting the TimedCallback will automatically stop the underlying Timer.

With this class you can use the Timer facility without inheritance.

See also

Timer

Inheritance diagram for juce::TimedCallback:

Public Member Functions
	TimedCallback (std::function< void()> callbackIn)
	Constructor.
	~TimedCallback () noexcept override
	Destructor.
void	startTimer (int intervalInMilliseconds) noexcept
	Starts the timer and sets the length of interval required.
void	startTimerHz (int timerFrequencyHz) noexcept
	Starts the timer with an interval specified in Hertz.
void	stopTimer () noexcept
	Stops the timer.
bool	isTimerRunning () const noexcept
	Returns true if the timer is currently running.
int	getTimerInterval () const noexcept
	Returns the timer's interval.

Constructors and Destructors

TimedCallback()

juce::TimedCallback::TimedCallback ( std::function< void()> callbackIn )

explicit

Constructor.

The passed in callback must be non-null.

References jassert.

~TimedCallback()

juce::TimedCallback::~TimedCallback ( )

overridenoexcept

Destructor.

References stopTimer().

Member Functions

startTimer()

void juce::Timer::startTimer ( int intervalInMilliseconds )

noexcept

Starts the timer and sets the length of interval required.

If the timer is already started, this will reset it, so the time between calling this method and the next timer callback will not be less than the interval length passed in.

Parameters

intervalInMilliseconds

the interval to use (any value less than 1 will be rounded up to 1)

startTimerHz()

void juce::Timer::startTimerHz ( int timerFrequencyHz )

noexcept

Starts the timer with an interval specified in Hertz.

This is effectively the same as calling startTimer (1000 / timerFrequencyHz).

stopTimer()

void juce::Timer::stopTimer ( )

noexcept

Stops the timer.

No more timer callbacks will be triggered after this method returns.

Note that if you call this from a background thread while the message-thread is already in the middle of your callback, then this method will cancel any future timer callbacks, but it will return without waiting for the current one to finish. The current callback will continue, possibly still running some of your timer code after this method has returned.

Referenced by ~TimedCallback().

isTimerRunning()

bool juce::Timer::isTimerRunning ( ) const

noexcept

Returns true if the timer is currently running.

getTimerInterval()

int juce::Timer::getTimerInterval ( ) const

noexcept

Returns the timer's interval.

Returns

the timer's interval in milliseconds if it's running, or 0 if it's not.