com.wolfram.jlink
Class MathFocusListener

java.lang.Object
  extended by com.wolfram.jlink.MathListener
      extended by com.wolfram.jlink.MathFocusListener
All Implemented Interfaces:
java.awt.event.FocusListener, java.util.EventListener

public class MathFocusListener
extends MathListener
implements java.awt.event.FocusListener

This class lets you trigger a call into Mathematica on the occurrence of a particular event. Like all the MathXXXListener classes, it is intended to be used primarily from Mathematica, although it can be used from Java code as well.

In response to a FocusEvent, objects of this class send to Mathematica:

     userCode[theFocusEvent]
userFunc is specified as a string, either a function name or an expression (like a pure function "foo[#]&"), via the setHandler() method.


Constructor Summary
MathFocusListener()
          The constructor that is called from Mathematica.
MathFocusListener(KernelLink ml)
          You must use this constructor when using this class in a Java program, because you need to specify the KernelLink that will be used.
MathFocusListener(java.lang.String[][] handlers)
          This form of the constructor lets you skip having to make a series of setHandler() calls.
 
Method Summary
 void focusGained(java.awt.event.FocusEvent e)
           
 void focusLost(java.awt.event.FocusEvent e)
           
 
Methods inherited from class com.wolfram.jlink.MathListener
callMathHandler, callVoidMathHandler, getHandler, getLink, setHandler
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

MathFocusListener

public MathFocusListener()
The constructor that is called from Mathematica.


MathFocusListener

public MathFocusListener(KernelLink ml)
You must use this constructor when using this class in a Java program, because you need to specify the KernelLink that will be used.

Parameters:
ml - The link to which computations will be sent when FocusEvents arrive.

MathFocusListener

public MathFocusListener(java.lang.String[][] handlers)
This form of the constructor lets you skip having to make a series of setHandler() calls. Use this constructor from Mathematica code only.

Parameters:
handlers - An array of {meth, func} pairs associating methods in the FocusListener interface with Mathematica functions.
Method Detail

focusGained

public void focusGained(java.awt.event.FocusEvent e)
Specified by:
focusGained in interface java.awt.event.FocusListener

focusLost

public void focusLost(java.awt.event.FocusEvent e)
Specified by:
focusLost in interface java.awt.event.FocusListener


J/Link is Copyright (c) 1999-2008, Wolfram Research, Inc. All rights reserved.