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Class com.bdnm.mvc.MVCList

java.lang.Object
   |
   +----java.awt.Component
           |
           +----java.awt.List
                   |
                   +----com.bdnm.mvc.MVCList

public class MVCList

extends List

implements Observer

model

This represents the underlying model for the widget

objectPrinter

This object is responsible for turning the objects in the list to strings.

MVCList()

Creates a new scrolling list with no visible lines, single selection, and a default model.

MVCList(boolean)

Creates a new scrolling list with no visible lines and a default model.

MVCList(SelectionInList, boolean)

Creates a new scrolling list with an initial model and a parameter that states whether multipleSelections are allowed.

getModel()

Retrieve the model.

handleEvent(Event)

We need to trap the LIST_SELECT and LIST_DESELECT events so we can update the underlying model.

objectPrinter()

Retrieve the object printer.

objectPrinter(ObjectPrinter)

Sets a new object printer.

refreshList()

Refresh the list's elements, whose print representation may have changed.

removeNotify()

Before we die, remove dependency on model.

setModel(SelectionInList)

Give the widget a new model.

update(Observable, Object)

Called when observers in the observable list need to be updated.

updateList()

Update the list behind the widget to match the list in the model.

updateSelections()

Update the selections on the widget to match the selections in the model.

  protected SelectionInList model

This represents the underlying model for the widget

  protected ObjectPrinter objectPrinter

This object is responsible for turning the objects in the list to strings.

  public MVCList()

Creates a new scrolling list with no visible lines, single selection, and a default model.

  public MVCList(boolean multipleSelections)

Creates a new scrolling list with no visible lines and a default model. The parameter states whether multiple selections are allowed.

Parameters:

multipleSelections - if true then multiple selections are allowed

  public MVCList(SelectionInList model,
                 boolean multipleSelections)

Creates a new scrolling list with an initial model and a parameter that states whether multipleSelections are allowed.

Parameters:

model - the model for the widget

multipleSelections - if true then multiple selections are allowed

  public SelectionInList getModel()

Retrieve the model.

Returns:

the model the widget is using

  public synchronized void setModel(SelectionInList newModel)

Give the widget a new model. This will also update the contents of the field.

Parameters:

newModel - the new model for the widget

  public synchronized ObjectPrinter objectPrinter()

Retrieve the object printer. Lazy init one if necessary.

Returns:

the object printer the widget is using

  public void objectPrinter(ObjectPrinter newObjectPrinter)

Sets a new object printer. This will also refresh the list.

Parameters:

newObjectPrinter - new object printer to use

  public synchronized void removeNotify()

Before we die, remove dependency on model.

Overrides:

removeNotify in class List

  public void update(Observable o,
                     Object arg)

Called when observers in the observable list need to be updated. We have two observables: the selection index holder and the list holder.

Parameters:

o - the observer sending the update

arg - the new value

  public synchronized void updateSelections()

Update the selections on the widget to match the selections in the model.

  public synchronized void updateList()

Update the list behind the widget to match the list in the model. Make no attempt to keep the selections.

  public void refreshList()

Refresh the list's elements, whose print representation may have changed. I assume that I have the same number of elements in my model as in my view.

  public boolean handleEvent(Event evt)

We need to trap the LIST_SELECT and LIST_DESELECT events so we can update the underlying model. Right now I only know how to deal with select for single select lists.

Overrides:

handleEvent in class Component

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