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Class semper.preferences.PrefFieldNegotiable 

java.lang.Object
   |
   +----semper.preferences.PrefField
           |
           +----semper.preferences.PrefFieldNegotiable
public class PrefFieldNegotiable
extends PrefField
This field contains an information string plus two lists. The first list (at left) contains the possible options (unused). The second list contains the selected options in preferences order. The user can put some possible options in a priority list or can remove items from the priority list back to the possible options (unused).

Version:
$Revision: 1.13 $ $Date: 1997/09/26 16:29:32 $
Author:
Louis Salvail (CWI)
See Also:
PrefFieldString, PrefFieldLabel, PrefFieldChoice, PrefFieldCheckBox

Constructor Index

o PrefFieldNegotiable()
Constructor used by new Instance when internalizing a new negotiable field.
o PrefFieldNegotiable(String, String[], int)
Construct a negotiable field where each item is unused and with defaults constraints.
o PrefFieldNegotiable(String, String[], int, GridBagConstraints)
Construct a negotiable field where each item is unused.

Method Index

o applyModification()
Applies the modification by loading the new value in the current value.
o cancel()
This method put in the unused List the elements of unused and put in the priority List elements of priority.
o getValue()
This method returns the priority list in a vector form.
o isModified()
Indicates if the field has been changed by the user during interactive editing.
o isOK()
Returns whether the value selected by the user is valid.
o moveButton()
Returns the move Button.Used by NegotiablePanels.
o priorityList()
Returns the priority list.
o removeButton()
Returns the remove Button.Used by NegotiablePanels.
o setValue(Object)
This method change the list of an item.
o showme(PrefFrame)
Implementation of the abstract showme method from PrefField.
o unusedList()
Return the unused list.

Constructors

o PrefFieldNegotiable 
 public PrefFieldNegotiable(String fieldname,
                            String items[],
                            int visibleLines,
                            GridBagConstraints constraint)
Construct a negotiable field where each item is unused.

Parameters:
fieldname - for that field.
a - vector containing the set of items.
visibleLines - is the number of lines shown in list components.
constraints - is the set of GridBagConstraints for that component.
Returns:
the new PrefFieldNegotiable object.
o PrefFieldNegotiable 
 public PrefFieldNegotiable(String fieldname,
                            String items[],
                            int visibleLines)
Construct a negotiable field where each item is unused and with defaults constraints.

Parameters:
fieldname - for that field.
a - vector containing the set of items.
visibleLines - is the number of lines shown in list components.
Returns:
the PrefFieldNegotiable object.
o PrefFieldNegotiable 
 public PrefFieldNegotiable()
Constructor used by new Instance when internalizing a new negotiable field.

Returns:
an empty negotiation field.

Methods

o moveButton 
 public Button moveButton()
Returns the move Button.Used by NegotiablePanels.

o removeButton 
 public Button removeButton()
Returns the remove Button.Used by NegotiablePanels.

o unusedList 
 public List unusedList()
Return the unused list.

o priorityList 
 public List priorityList()
Returns the priority list.

o showme 
 public void showme(PrefFrame p)
Implementation of the abstract showme method from PrefField.

Parameters:
p - is the frame where to put the group's fields
Returns:
none.
Overrides:
showme in class PrefField
o getValue 
 public Object getValue()
This method returns the priority list in a vector form.

Returns:
the vector containing all the items.
Overrides:
getValue in class PrefField
o setValue 
 public void setValue(Object item)
This method change the list of an item. If the item was in the unused list then it is moved next in the priority list. If the item was in the priority list then it is moved as unused.

Parameters:
item - is the item to move. If no such item is in the set of all items then nothing is done.
Returns:
none.
Overrides:
setValue in class PrefField
o isModified 
 public boolean isModified()
Indicates if the field has been changed by the user during interactive editing.

Overrides:
isModified in class PrefField
o applyModification 
 public boolean applyModification()
Applies the modification by loading the new value in the current value.

Overrides:
applyModification in class PrefField
o cancel 
 public void cancel()
This method put in the unused List the elements of unused and put in the priority List elements of priority.

Returns:
none.
Overrides:
cancel in class PrefField
o isOK 
 public boolean isOK()
Returns whether the value selected by the user is valid.

Overrides:
isOK in class PrefField 
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