Class MathFocusListener

java.lang.Object
com.wolfram.jlink.MathListener
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

    Constructors 
    Constructor Description
    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

    Modifier and Type Method Description
    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 Details

    • 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 Details

    • 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