org.jgraph.graph
Class GraphLayoutCache.GraphViewLayerEdit

java.lang.Object
  javax.swing.undo.AbstractUndoableEdit
      org.jgraph.graph.GraphLayoutCache.GraphViewLayerEdit

All Implemented Interfaces:

Serializable, UndoableEdit, GraphModelEvent.ExecutableGraphChange, GraphModelEvent.GraphViewChange

Direct Known Subclasses:

DefaultGraphModel.GraphModelLayerEdit

Enclosing class:

GraphLayoutCache

public static class GraphLayoutCache.GraphViewLayerEdit
extends AbstractUndoableEdit
implements GraphModelEvent.GraphViewChange, GraphModelEvent.ExecutableGraphChange

An implementation of GraphViewChange.

See Also:

Serialized Form

Field Summary

static int	BACK
protected Object[]	cells
protected Object	changeSource
static int	FRONT
protected int	layer
protected int[]	next
protected int[]	prev

Fields inherited from class javax.swing.undo.AbstractUndoableEdit

RedoName, UndoName

Constructor Summary

GraphLayoutCache.GraphViewLayerEdit(Object source, Object[] cells, int layer)
Constructs a GraphViewEdit.

Method Summary

void	execute() Execute this edit such that the next invocation to this method will invert the last execution.
Map	getAttributes() Returns a map of (cell view, attribute) pairs.
Object[]	getChanged() Returns the cells that have changed.
Object[]	getContext() Returns the views that have not changed explicitly, but implicitly because one of their dependent cells has changed.
protected List	getParentList(Object view) Returns the list that exclusively contains view.
Object	getSource() Returns the source of this change.
void	redo() Redoes a change.
void	undo() Undoes a change.
protected void	updateListeners()
protected void	updateNext()

Methods inherited from class javax.swing.undo.AbstractUndoableEdit

addEdit, canRedo, canUndo, die, getPresentationName, getRedoPresentationName, getUndoPresentationName, isSignificant, replaceEdit, toString

Methods inherited from class java.lang.Object

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

Field Detail

FRONT

public static final int FRONT

See Also:

Constant Field Values

BACK

public static final int BACK

See Also:

Constant Field Values

changeSource

protected Object changeSource

cells

protected transient Object[] cells

next

protected transient int[] next

prev

protected transient int[] prev

layer

protected int layer

Constructor Detail

GraphLayoutCache.GraphViewLayerEdit

public GraphLayoutCache.GraphViewLayerEdit(Object source,
                                           Object[] cells,
                                           int layer)

Constructs a GraphViewEdit. This modifies the view attributes of the specified cells and may be used to notify UndoListeners.

Parameters:

source - the source of the change (the view)

cells -

layer -

Method Detail

updateNext

protected void updateNext()

getSource

public Object getSource()

Returns the source of this change. This can either be a view or a model, if this change is a GraphModelChange.

Specified by:

getSource in interface GraphModelEvent.GraphViewChange

getChanged

public Object[] getChanged()

Returns the cells that have changed.

Specified by:

getChanged in interface GraphModelEvent.GraphViewChange

getContext

public Object[] getContext()

Returns the views that have not changed explicitly, but implicitly because one of their dependent cells has changed.

Specified by:

getContext in interface GraphModelEvent.GraphViewChange

getAttributes

public Map getAttributes()

Returns a map of (cell view, attribute) pairs.

Specified by:

getAttributes in interface GraphModelEvent.GraphViewChange

redo

public void redo()
          throws CannotRedoException

Redoes a change.

Specified by:

redo in interface UndoableEdit

Overrides:

redo in class AbstractUndoableEdit

Throws:

CannotRedoException - if the change cannot be redone

undo

public void undo()
          throws CannotUndoException

Undoes a change.

Specified by:

undo in interface UndoableEdit

Overrides:

undo in class AbstractUndoableEdit

Throws:

CannotUndoException - if the change cannot be undone

execute

public void execute()

Execute this edit such that the next invocation to this method will invert the last execution.

Specified by:

execute in interface GraphModelEvent.ExecutableGraphChange

updateListeners

protected void updateListeners()

getParentList

protected List getParentList(Object view)

Returns the list that exclusively contains view.