uk.ac.starlink.topcat.plot
Class OrderedSelectionRecorder

java.lang.Object
  extended by uk.ac.starlink.topcat.plot.OrderedSelectionRecorder
All Implemented Interfaces:
EventListener, ListSelectionListener

public abstract class OrderedSelectionRecorder
extends Object
implements ListSelectionListener

ListSelectionListener implementation which can tell you what order items have been selected in.

Since:
16 Jun 2004
Author:
Mark Taylor (Starlink)

Constructor Summary
OrderedSelectionRecorder()
          Constructs a new recorder with no items selected.
OrderedSelectionRecorder(boolean[] state)
          Constructs a new recorder with a given initial state.
 
Method Summary
protected abstract  boolean[] getModelState()
          Returns the state of the selection model given the source of a selection event.
 int[] getOrderedSelection()
          Returns a list of the currently-selected indices in the selection model in the order in which they were (most recently) added to the selection.
 void updateState(boolean[] state)
          Sets the new selection state.
 void valueChanged(ListSelectionEvent evt)
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

OrderedSelectionRecorder

public OrderedSelectionRecorder()
Constructs a new recorder with no items selected.


OrderedSelectionRecorder

public OrderedSelectionRecorder(boolean[] state)
Constructs a new recorder with a given initial state.

Parameters:
state - mask of flags, one true for each selected item
Method Detail

getOrderedSelection

public int[] getOrderedSelection()
Returns a list of the currently-selected indices in the selection model in the order in which they were (most recently) added to the selection.

Returns:
ordered selection model indices

valueChanged

public void valueChanged(ListSelectionEvent evt)
Specified by:
valueChanged in interface ListSelectionListener

updateState

public void updateState(boolean[] state)
Sets the new selection state.

Parameters:
state - mask of flags, one true for each selected item

getModelState

protected abstract boolean[] getModelState()
Returns the state of the selection model given the source of a selection event.

Returns:
mask of flags, one true for each selected item


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