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Class semper.preferences.PrefFrame 

java.lang.Object
   |
   +----java.awt.Component
           |
           +----java.awt.Container
                   |
                   +----java.awt.Window
                           |
                           +----java.awt.Frame
                                   |
                                   +----semper.preferences.PrefFrame
public class PrefFrame
extends Frame
implements ActionListener
This defines a frame for preferences editing. When a group is asked for display, each component is put according to some formatting constraints in this kind of frame. This allows to intercept events from the user while editing a preferences group.

Version:
$Revision: 1.14 $ $Date: 1998/04/07 12:45:40 $
Author:
Louis Salvail (CWI)

Variable Index

o CANCEL_LABEL
o constraint
o layout
o RESET_LABEL
o USE_LABEL

Constructor Index

o PrefFrame(String)
Contructor for preferences frames.
o PrefFrame(String, PrefGroup)
Contructor for preferences frames with owner.

Method Index

o actionPerformed(ActionEvent)
This is the method responsible to deal with one of the frame buttons (cancel,reset,use).
o add(Component, GridBagConstraints)
This method rewrite the standard add() method of the component class for PrefFrame.
o addButtons()
This method adds the use,cancel and reset buttons to the frame.
o setOwner(PrefGroup)
Set the group owning this frame.

Variables

o USE_LABEL 
 public static final String USE_LABEL
o CANCEL_LABEL 
 public static final String CANCEL_LABEL
o RESET_LABEL 
 public static final String RESET_LABEL
o layout 
 public GridBagLayout layout
o constraint 
 public GridBagConstraints constraint

Constructors

o PrefFrame 
 public PrefFrame(String title)
Contructor for preferences frames.

Parameters:
title - is the name of the frame.
Returns:
a new object.
o PrefFrame 
 public PrefFrame(String title,
                  PrefGroup owner)
Contructor for preferences frames with owner.

Parameters:
title - is the name of the frame.
owner - is the group name to be displayed in this frame.
Returns:
a new object.

Methods

o setOwner 
 public void setOwner(PrefGroup owner)
Set the group owning this frame.

Parameters:
owner - is the group owning this frame.
Returns:
none.
o add 
 public Component add(Component comp,
                      GridBagConstraints csts)
This method rewrite the standard add() method of the component class for PrefFrame.

Parameters:
Component - to be added.
Returns:
I don't know, the java class description does not explain what is returned. However, I think the input component itself is returned.
o actionPerformed 
 public void actionPerformed(ActionEvent event)
This is the method responsible to deal with one of the frame buttons (cancel,reset,use).

Parameters:
event - is what occured.
o addButtons 
 public void addButtons()
This method adds the use,cancel and reset buttons to the frame. Must be called at least once when a frame is used to display a pref group. This frame is registered as an action listener for each button. 

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