Package com.jogamp.newt.util

Class MainThread

java.lang.Object

com.jogamp.newt.util.MainThread

public class MainThread
extends Object

NEWT Utility class MainThread

FIXME: Update this documentation! This class just provides a main-thread utility, forking of a main java class on another thread while being able to continue doing platform specific things on the main-thread. The latter is essential for eg. MacOSX, where we continue to run NSApp.run().

This class provides a startup singleton main thread, from which a new thread with the users main class is launched.
Such behavior is necessary for native windowing toolkits, where the windowing management must happen on the so called main thread e.g. for Mac OS X !
Utilizing this class as a launchpad, now you are able to use a NEWT multithreaded application with window handling within the different threads, even on these restricted platforms.
To support your NEWT Window platform, you have to pass your main thread actions to invoke(..), have a look at the NEWT Mac OSX Window driver implementation.
TODO: Some hardcoded dependencies exist in this implementation, where you have to patch this code or factor it out.

If your platform is not Mac OS X, but you want to test your code without modifying this class, you have to set the system property newt.MainThread.force to true.

The code is compatible with all other platform, which support multithreaded windowing handling. Since those platforms won't trigger the main thread serialization, the main method will be simply executed, in case you haven't set newt.MainThread.force to true.

Test case on Mac OS X (or any other platform):

    java -XstartOnFirstThread com.jogamp.newt.util.MainThread demos.es1.RedSquare -GL2 -GL2 -GL2 -GL2
 

Which starts 4 threads, each with a window and OpenGL rendering.

Field Summary

Fields

Modifier and Type	Field	Description
static boolean	HINT_USE_MAIN_THREAD	if true, use the main thread EDT, otherwise AWT's EDT
static boolean	useMainThread

Constructor Summary

Constructors

Constructor	Description
MainThread()

Method Summary

Modifier and Type	Method	Description
static MainThread	getSingleton()
static void	main(String[] args)	Your new java application main entry, which pipelines your application

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

HINT_USE_MAIN_THREAD

public static final boolean HINT_USE_MAIN_THREAD

if true, use the main thread EDT, otherwise AWT's EDT

useMainThread

public static boolean useMainThread

Constructor Detail

MainThread

public MainThread()

Method Detail

main

public static void main(String[] args)
                 throws SecurityException,
                        NoSuchMethodException,
                        ClassNotFoundException

Your new java application main entry, which pipelines your application

Throws:

ClassNotFoundException

NoSuchMethodException

SecurityException

getSingleton

public static MainThread getSingleton()