charvax.swing
Class DefaultListSelectionModel

java.lang.Object
  charvax.swing.DefaultListSelectionModel

All Implemented Interfaces:

ListSelectionModel

public class DefaultListSelectionModel

extends java.lang.Object

implements ListSelectionModel

Default data model for list selections.

Field Summary

protected java.util.ArrayList	_listeners The list of listeners.
protected java.util.TreeSet	_selection The set of selected indices.

Fields inherited from interface charvax.swing.ListSelectionModel

MULTIPLE_INTERVAL_SELECTION, SINGLE_INTERVAL_SELECTION, SINGLE_SELECTION

Constructor Summary

DefaultListSelectionModel()

Method Summary

void	addListSelectionListener(ListSelectionListener l_) Add a listener to the list that is notified each time a change to the selection occurs.
void	addSelectionInterval(int index0, int index1) Change the selection to be the set union between the current selection and the indices between index0 and index1 inclusive.
void	clearSelection() Change the selection to be the empty set.
protected void	fireValueChanged(int firstindex_, int lastindex_) Notify the listeners that the selection has changed.
int	getMaxSelectionIndex() Returns the last selected index, or -1 if the selection is empty.
int	getMinSelectionIndex() Returns the first selected index, or -1 if the selection is empty.
int	getSelectionMode() Returns the current selection mode.
void	insertIndexInterval(int index, int length, boolean before) Insert length indices beginning before/after index, without notifying the ListSelectionListeners.
boolean	isSelectedIndex(int index) Returns true if the specified index is selected.
boolean	isSelectionEmpty() Returns true if no indices are selected.
void	removeIndexInterval(int index0, int index1) Remove the indices in the interval index0,index1 (inclusive) from the selection model, without notifying the ListSelectionListeners.
void	removeListSelectionListener(ListSelectionListener l_) Remove a listener from the list.
void	removeSelectionInterval(int index0, int index1) Change the selection to be the set difference between the current selection and the indices between index0 and index1 inclusive.
void	setSelectionInterval(int index0, int index1) Change the selection to be between index0 and index1 inclusive.
void	setSelectionMode(int mode_) Set the selection mode.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

_listeners

protected java.util.ArrayList _listeners

The list of listeners.

_selection

protected java.util.TreeSet _selection

The set of selected indices.

Constructor Detail

DefaultListSelectionModel

public DefaultListSelectionModel()

Method Detail

addListSelectionListener

public void addListSelectionListener(ListSelectionListener l_)

Add a listener to the list that is notified each time a change to the selection occurs.

Specified by:

addListSelectionListener in interface ListSelectionModel

removeListSelectionListener

public void removeListSelectionListener(ListSelectionListener l_)

Remove a listener from the list.

Specified by:

removeListSelectionListener in interface ListSelectionModel

setSelectionMode

public void setSelectionMode(int mode_)

Set the selection mode. The following modes are allowed:

• SINGLE_SELECTION. Only one list index can be selected at a time.
• SINGLE_INTERVAL_SELECTION. One contiguous index interval can be set at at time.

Specified by:

setSelectionMode in interface ListSelectionModel

getSelectionMode

public int getSelectionMode()

Returns the current selection mode.

Specified by:

getSelectionMode in interface ListSelectionModel

isSelectedIndex

public boolean isSelectedIndex(int index)

Returns true if the specified index is selected.

Specified by:

isSelectedIndex in interface ListSelectionModel

getMinSelectionIndex

public int getMinSelectionIndex()

Returns the first selected index, or -1 if the selection is empty.

Specified by:

getMinSelectionIndex in interface ListSelectionModel

getMaxSelectionIndex

public int getMaxSelectionIndex()

Returns the last selected index, or -1 if the selection is empty.

Specified by:

getMaxSelectionIndex in interface ListSelectionModel

isSelectionEmpty

public boolean isSelectionEmpty()

Returns true if no indices are selected.

Specified by:

isSelectionEmpty in interface ListSelectionModel

clearSelection

public void clearSelection()

Change the selection to be the empty set. If this represents a change to the selection then notify each ListSelectionListener.

Specified by:

clearSelection in interface ListSelectionModel

addSelectionInterval

public void addSelectionInterval(int index0,
                                 int index1)

Change the selection to be the set union between the current selection and the indices between index0 and index1 inclusive. If this represents a change to the current selection, then notify each ListSelectionListener. Note that index0 does not have to be less than or equal to index1.

Specified by:

addSelectionInterval in interface ListSelectionModel

removeSelectionInterval

public void removeSelectionInterval(int index0,
                                    int index1)

Change the selection to be the set difference between the current selection and the indices between index0 and index1 inclusive. If this represents a change to the current selection, then notify each ListSelectionListener. Note that index0 does not have to be less than or equal to index1.

Specified by:

removeSelectionInterval in interface ListSelectionModel

setSelectionInterval

public void setSelectionInterval(int index0,
                                 int index1)

Change the selection to be between index0 and index1 inclusive. If this represents a change to the selection, then notify each ListSelectionListener. Note that index0 doesn't have to be less than or equal to index1.

Specified by:

setSelectionInterval in interface ListSelectionModel

insertIndexInterval

public void insertIndexInterval(int index,
                                int length,
                                boolean before)

Insert length indices beginning before/after index, without notifying the ListSelectionListeners. This is typically called to sync the selection model with a corresponding change in the data model.

Specified by:

insertIndexInterval in interface ListSelectionModel

removeIndexInterval

public void removeIndexInterval(int index0,
                                int index1)

Remove the indices in the interval index0,index1 (inclusive) from the selection model, without notifying the ListSelectionListeners. This is typically called to sync the selection model with a corresponding change in the data model.

Specified by:

removeIndexInterval in interface ListSelectionModel

fireValueChanged

protected void fireValueChanged(int firstindex_,
                                int lastindex_)

Notify the listeners that the selection has changed.

Parameters:

firstindex_ - The first index in the interval

lastindex_ - The last index in the interval.