javax.media.opengl
Interface GLAnimatorControl

All Superinterfaces:

FPSCounter

All Known Implementing Classes:

Animator, AnimatorBase, FPSAnimator

public interface GLAnimatorControl
extends FPSCounter

An animator control interface, which implementation may drive a GLAutoDrawable animation.

Field Summary

Fields inherited from interface javax.media.opengl.FPSCounter

DEFAULT_FRAMES_PER_INTERVAL

Method Summary

void	add(GLAutoDrawable drawable) Adds a drawable to this animator's list of rendering drawables.
Thread	getThread()
boolean	isAnimating() Indicates whether this animator is started and is not paused.
boolean	isPaused() Indicates whether this animator is started and either manually paused or paused automatically due to no added GLAutoDrawables.
boolean	isStarted() Indicates whether this animator has been started.
boolean	pause() Pauses this animator.
void	remove(GLAutoDrawable drawable) Removes a drawable from the animator's list of rendering drawables.
boolean	resume() Resumes animation if paused.
boolean	start() Starts this animator, if not running.
boolean	stop() Stops this animator.

Methods inherited from interface javax.media.opengl.FPSCounter

getFPSStartTime, getLastFPS, getLastFPSPeriod, getLastFPSUpdateTime, getTotalFPS, getTotalFPSDuration, getTotalFPSFrames, getUpdateFPSFrames, resetFPSCounter, setUpdateFPSFrames

Method Detail

isStarted

boolean isStarted()

Indicates whether this animator has been started.

See Also:

start(), stop(), isPaused(), pause(), resume()

isAnimating

boolean isAnimating()

Indicates whether this animator is started and is not paused.

See Also:

start(), stop(), pause(), resume()

isPaused

boolean isPaused()

Indicates whether this animator is started and either manually paused or paused automatically due to no added GLAutoDrawables.

See Also:

start(), stop(), pause(), resume()

getThread

Thread getThread()

Returns:

The animation thread if running, otherwise null.

See Also:

start(), stop()

start

boolean start()

Starts this animator, if not running.

In most situations this method blocks until completion, except when called from the animation thread itself or in some cases from an implementation-internal thread like the AWT event queue thread.

Note that an animator w/o added drawables will be paused automatically.

If started, all counters (time, frames, ..) are reset to zero.

Returns:

true is started due to this call, otherwise false, ie started already or unable to start.

See Also:

stop(), isAnimating(), isPaused(), getThread()

stop

boolean stop()

Stops this animator.

In most situations this method blocks until completion, except when called from the animation thread itself or in some cases from an implementation-internal thread like the AWT event queue thread.

Returns:

true is stopped due to this call, otherwise false, ie not started or unable to stop.

See Also:

start(), isAnimating(), getThread()

pause

boolean pause()

Pauses this animator.

In most situations this method blocks until completion, except when called from the animation thread itself or in some cases from an implementation-internal thread like the AWT event queue thread.

Returns:

false if not started, already paused or failed to pause, otherwise true

See Also:

resume(), isAnimating()

resume

boolean resume()

Resumes animation if paused.

In most situations this method blocks until completion, except when called from the animation thread itself or in some cases from an implementation-internal thread like the AWT event queue thread.

If resumed, all counters (time, frames, ..) are reset to zero.

Returns:

false if not started, not paused or unable to resume, otherwise true

See Also:

pause(), isAnimating()

add

void add(GLAutoDrawable drawable)

Adds a drawable to this animator's list of rendering drawables.

This allows the animator thread to become animating, in case the first drawable is added and the animator is started.

Parameters:

drawable - the drawable to be added

Throws:

IllegalArgumentException - if drawable was already added to this animator

remove

void remove(GLAutoDrawable drawable)

Removes a drawable from the animator's list of rendering drawables.

This method should get called in case a drawable becomes invalid, and will not be recovered.

This allows the animator thread to become not animating, in case the last drawable has been removed.

Parameters:

drawable - the drawable to be removed

Throws:

IllegalArgumentException - if drawable was not added to this animator