com.hermetica.magician
Class GLEventMulticaster

java.lang.Object
  |
  +--com.hermetica.magician.GLEventMulticaster

public class GLEventMulticaster

extends java.lang.Object

implements GLEventListener

Field Summary

protected GLEventListener	_head
protected GLEventListener	_tail

Constructor Summary

protected

GLEventMulticaster(GLEventListener head, GLEventListener tail) Creates an event multicaster instance which chains two listeners head and tail together.

Method Summary

static GLEventListener	add(GLEventListener head, GLEventListener tail) Returns an event multicaster from listeners head and tail.
void	display(GLDrawable component) Forwards the display event to both listeners _head and _tail.
GL	getGL() Returns a valid CoreGL pipeline
void	initialize(GLDrawable component) Forwards the initialize event to both listeners _head and _tail.
protected GLEventListener	remove(GLEventListener removee) Removes a listener from this multicaster and returns the resulting multicaster listener.
static GLEventListener	remove(GLEventListener target, GLEventListener removee) Returns the resulting multicaster listener after removing the removee listener from the target listener.
void	reshape(GLDrawable component, int x, int y, int width, int height) Forwards the reshape event to both listeners _head and _tail.

Methods inherited from class java.lang.Object

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

Field Detail

_head

protected final GLEventListener _head

_tail

protected final GLEventListener _tail

Constructor Detail

GLEventMulticaster

protected GLEventMulticaster(GLEventListener head,
                             GLEventListener tail)

Creates an event multicaster instance which chains two listeners head and tail together.

Method Detail

add

public static GLEventListener add(GLEventListener head,
                                  GLEventListener tail)

Returns an event multicaster from listeners head and tail. If either head or tail is null, the other is returned (no multicaster is created). Otherwise, a new multicaster is created which chains head and tail together.

remove

protected GLEventListener remove(GLEventListener removee)

Removes a listener from this multicaster and returns the resulting multicaster listener.

remove

public static GLEventListener remove(GLEventListener target,
                                     GLEventListener removee)

Returns the resulting multicaster listener after removing the removee listener from the target listener. If target is null or removee equals target, null is returned.

Parameters:

target - the listener removee is being removed from

removee - the listener being removed

initialize

public void initialize(GLDrawable component)

Forwards the initialize event to both listeners _head and _tail.

Specified by:

initialize in interface GLEventListener

Parameters:

component - the GLComponent generating the event

display

public void display(GLDrawable component)

Forwards the display event to both listeners _head and _tail.

Specified by:

display in interface GLEventListener

Parameters:

component - the GLComponent generating the event

reshape

public void reshape(GLDrawable component,
                    int x,
                    int y,
                    int width,
                    int height)

Forwards the reshape event to both listeners _head and _tail.

Specified by:

reshape in interface GLEventListener

Parameters:

component - the GLComponent generating the event

getGL

public GL getGL()

Returns a valid CoreGL pipeline

Specified by:

getGL in interface GLEventListener