org.jgraph.graph

Class DefaultGraphSelectionModel

java.lang.Object

org.jgraph.graph.DefaultGraphSelectionModel

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, GraphSelectionModel

Direct Known Subclasses:

JGraph.EmptySelectionModel

public class DefaultGraphSelectionModel
extends java.lang.Object
implements GraphSelectionModel, java.lang.Cloneable, java.io.Serializable

Default implementation of GraphSelectionModel. Listeners are notified

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static int	SELECTED Value that represents selected state in cellStates.
static java.lang.String	SELECTION_MODE_PROPERTY Property name for selectionMode.
static java.lang.Integer	UNSELECTED Object value that represents the unselected state in cellStates.

Fields inherited from interface org.jgraph.graph.GraphSelectionModel

MULTIPLE_GRAPH_SELECTION, SINGLE_GRAPH_SELECTION

Constructor Summary

Constructors

Constructor and Description
DefaultGraphSelectionModel(JGraph graph) Constructs a DefaultGraphSelectionModel for the specified graph.

Method Summary

Modifier and Type	Method and Description
void	addGraphSelectionListener(GraphSelectionListener x) Adds x to the list of listeners that are notified each time the set of selected TreePaths changes.
void	addPropertyChangeListener(java.beans.PropertyChangeListener listener) Adds a PropertyChangeListener to the listener list.
void	addSelectionCell(java.lang.Object cell) Adds the specified cell to the current selection
void	addSelectionCells(java.lang.Object[] cells) Adds cells to the current selection.
void	clearSelection() Empties the current selection.
java.lang.Object	clone() Returns a clone of this object with the same selection.
java.util.EventListener[]	getListeners(java.lang.Class listenerType) Returns an array of all the listeners of the given type that were added to this model.
java.lang.Object[]	getSelectables() Returns the cells that are currently selectable.
java.lang.Object	getSelectionCell() Returns the first cell in the selection.
java.lang.Object[]	getSelectionCells() Returns the cells in the selection.
int	getSelectionCount() Returns the number of paths that are selected.
int	getSelectionMode() Returns the selection mode, one of SINGLE_TREE_SELECTION, DISCONTIGUOUS_TREE_SELECTION or CONTIGUOUS_TREE_SELECTION.
boolean	isCellSelected(java.lang.Object cell) Returns true if the cell, cell, is in the current selection.
boolean	isChildrenSelectable() Returns true if the selection model allows the selection of children.
boolean	isChildrenSelected(java.lang.Object cell) Returns true if the cell, cell, has selected children.
boolean	isSelectionEmpty() Returns true if the selection is currently empty.
void	removeGraphSelectionListener(GraphSelectionListener x) Removes x from the list of listeners that are notified each time the set of selected TreePaths changes.
void	removePropertyChangeListener(java.beans.PropertyChangeListener listener) Removes a PropertyChangeListener from the listener list.
void	removeSelectionCell(java.lang.Object cell) Removes the specified cell from the selection.
void	removeSelectionCells(java.lang.Object[] cells) Removes the specified cells from the selection.
void	setChildrenSelectable(boolean flag) Sets if the selection model allows the selection of children.
void	setSelectionCell(java.lang.Object cell) Selects the specified cell.
void	setSelectionCells(java.lang.Object[] cells) Sets the selection to cells.
void	setSelectionMode(int mode) Sets the selection mode, which must be one of SINGLE_TREE_SELECTION,

Methods inherited from class java.lang.Object

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

Field Detail

SELECTION_MODE_PROPERTY

public static final java.lang.String SELECTION_MODE_PROPERTY

Property name for selectionMode.

See Also:

Constant Field Values

SELECTED

public static final int SELECTED

Value that represents selected state in cellStates.

See Also:

Constant Field Values

UNSELECTED

public static final java.lang.Integer UNSELECTED

Object value that represents the unselected state in cellStates.

Constructor Detail

DefaultGraphSelectionModel

public DefaultGraphSelectionModel(JGraph graph)

Constructs a DefaultGraphSelectionModel for the specified graph.

Method Detail

setSelectionMode

public void setSelectionMode(int mode)

Sets the selection mode, which must be one of SINGLE_TREE_SELECTION,

Specified by:

setSelectionMode in interface GraphSelectionModel

getSelectionMode

public int getSelectionMode()

Returns the selection mode, one of SINGLE_TREE_SELECTION, DISCONTIGUOUS_TREE_SELECTION or CONTIGUOUS_TREE_SELECTION.

Specified by:

getSelectionMode in interface GraphSelectionModel

setChildrenSelectable

public void setChildrenSelectable(boolean flag)

Sets if the selection model allows the selection of children.

Specified by:

setChildrenSelectable in interface GraphSelectionModel

isChildrenSelectable

public boolean isChildrenSelectable()

Returns true if the selection model allows the selection of children.

Specified by:

isChildrenSelectable in interface GraphSelectionModel

setSelectionCell

public void setSelectionCell(java.lang.Object cell)

Selects the specified cell.

Specified by:

setSelectionCell in interface GraphSelectionModel

Parameters:

cell - the cell to select

setSelectionCells

public void setSelectionCells(java.lang.Object[] cells)

Sets the selection to cells. If this represents a change the GraphSelectionListeners are notified. Potentially paths will be held by this object; in other words don't change any of the objects in the array once passed in.

Specified by:

setSelectionCells in interface GraphSelectionModel

Parameters:

cells - new selection

addSelectionCell

public void addSelectionCell(java.lang.Object cell)

Adds the specified cell to the current selection

Specified by:

addSelectionCell in interface GraphSelectionModel

Parameters:

cell - the cell to add to the current selection

addSelectionCells

public void addSelectionCells(java.lang.Object[] cells)

Adds cells to the current selection.

Specified by:

addSelectionCells in interface GraphSelectionModel

Parameters:

cells - the cells to be added to the current selection

removeSelectionCell

public void removeSelectionCell(java.lang.Object cell)

Removes the specified cell from the selection.

Specified by:

removeSelectionCell in interface GraphSelectionModel

Parameters:

cell - the cell to remove from the current selection

removeSelectionCells

public void removeSelectionCells(java.lang.Object[] cells)

Removes the specified cells from the selection.

Specified by:

removeSelectionCells in interface GraphSelectionModel

Parameters:

cells - the cells to remove from the current selection

getSelectables

public java.lang.Object[] getSelectables()

Returns the cells that are currently selectable. The array is ordered so that the top-most cell appears first.

Specified by:

getSelectables in interface GraphSelectionModel

getSelectionCell

public java.lang.Object getSelectionCell()

Returns the first cell in the selection. This is useful if there if only one item currently selected.

Specified by:

getSelectionCell in interface GraphSelectionModel

getSelectionCells

public java.lang.Object[] getSelectionCells()

Returns the cells in the selection. This will return null (or an empty array) if nothing is currently selected.

Specified by:

getSelectionCells in interface GraphSelectionModel

getSelectionCount

public int getSelectionCount()

Returns the number of paths that are selected.

Specified by:

getSelectionCount in interface GraphSelectionModel

isCellSelected

public boolean isCellSelected(java.lang.Object cell)

Returns true if the cell, cell, is in the current selection.

Specified by:

isCellSelected in interface GraphSelectionModel

isChildrenSelected

public boolean isChildrenSelected(java.lang.Object cell)

Returns true if the cell, cell, has selected children.

Specified by:

isChildrenSelected in interface GraphSelectionModel

isSelectionEmpty

public boolean isSelectionEmpty()

Returns true if the selection is currently empty.

Specified by:

isSelectionEmpty in interface GraphSelectionModel

clearSelection

public void clearSelection()

Empties the current selection. If this represents a change in the current selection, the selection listeners are notified.

Specified by:

clearSelection in interface GraphSelectionModel

addGraphSelectionListener

public void addGraphSelectionListener(GraphSelectionListener x)

Adds x to the list of listeners that are notified each time the set of selected TreePaths changes.

Specified by:

addGraphSelectionListener in interface GraphSelectionModel

Parameters:

x - the new listener to be added

removeGraphSelectionListener

public void removeGraphSelectionListener(GraphSelectionListener x)

Removes x from the list of listeners that are notified each time the set of selected TreePaths changes.

Specified by:

removeGraphSelectionListener in interface GraphSelectionModel

Parameters:

x - the listener to remove

getListeners

public java.util.EventListener[] getListeners(java.lang.Class listenerType)

Returns an array of all the listeners of the given type that were added to this model.

Returns:

all of the objects receiving listenerType notifications from this model

Since:

1.3

addPropertyChangeListener

public void addPropertyChangeListener(java.beans.PropertyChangeListener listener)

Adds a PropertyChangeListener to the listener list. The listener is registered for all properties.

A PropertyChangeEvent will get fired when the selection mode changes.

Specified by:

addPropertyChangeListener in interface GraphSelectionModel

Parameters:

listener - the PropertyChangeListener to be added

removePropertyChangeListener

public void removePropertyChangeListener(java.beans.PropertyChangeListener listener)

Removes a PropertyChangeListener from the listener list. This removes a PropertyChangeListener that was registered for all properties.

Specified by:

removePropertyChangeListener in interface GraphSelectionModel

Parameters:

listener - the PropertyChangeListener to be removed

clone

public java.lang.Object clone()
                       throws java.lang.CloneNotSupportedException

Returns a clone of this object with the same selection. This method does not duplicate selection listeners and property listeners.

Overrides:

clone in class java.lang.Object

Throws:

java.lang.CloneNotSupportedException - never thrown by instances of this class