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Class observable.ObsTextField 

java.lang.Object
   |
   +----java.awt.Component
           |
           +----java.awt.TextComponent
                   |
                   +----java.awt.TextField
                           |
                           +----dpscomponents.DblTextField
                                   |
                                   +----observable.ObsTextField
public class ObsTextField
extends DblTextField
implements Observer
This simple extension of the DblTextField ties the value entered into the field with an ObservableDbl variable.

Version:
$Revision: 1.1.1.1 $, $Date: 1999/11/15 20:37:49 $.
Author:
Daren Stotler
See Also:
DblTextField, ObservableDbl

Variable Index

o precision_

Constructor Index

o ObsTextField(ObservableDbl, double, int)
Constructor.

Method Index

o keyReleased(KeyEvent)
This method overrides the corresponding KeyListener method in DblTextField.
o update(Observable, Object)
Requisite method for the Observer interface.

Variables

o precision_ 
 protected int precision_

Constructors

o ObsTextField 
 public ObsTextField(ObservableDbl od,
                     double defval,
                     int size)
Constructor.

Parameters:
od - ObservableDbl to be tied to this text field
defval - default value to be displayed in the text field
size - the number of columns in the text field

Methods

o update 
 public void update(Observable obs,
                    Object arg)
Requisite method for the Observer interface. It's called whenever an Observer changes. This one updates the text field to reflect the change in the ObservableDbl.

See Also:
update
o keyReleased 
 public void keyReleased(KeyEvent evt)
This method overrides the corresponding KeyListener method in DblTextField. It watches for the "Enter" key and checks the text when it appears. The ObservableDbl's maximum and minimum are also enforced.

Overrides:
keyReleased in class DblTextField
See Also:
keyReleased 
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