uk.ac.starlink.topcat.plot
Class OrderedSelectionRecorder

java.lang.Object
  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