org.jgraph.graph
Class GraphLayoutCache.GraphViewEdit

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

All Implemented Interfaces:

Serializable, UndoableEdit, GraphModelEvent.ExecutableGraphChange, GraphModelEvent.GraphViewChange

Enclosing class:

GraphLayoutCache

public class GraphLayoutCache.GraphViewEdit
extends CompoundEdit
implements GraphModelEvent.GraphViewChange, GraphModelEvent.ExecutableGraphChange

An implementation of GraphViewChange.

See Also:

Serialized Form

Field Summary

protected Map	attributes
protected Object[]	cells
protected CellView[]	context
protected CellView[]	hidden
protected Object[]	invisible
protected Object[]	visible

Fields inherited from class javax.swing.undo.CompoundEdit

edits

Fields inherited from class javax.swing.undo.AbstractUndoableEdit

RedoName, UndoName

Constructor Summary

GraphLayoutCache.GraphViewEdit(Map nested)
Constructs a GraphViewEdit.

GraphLayoutCache.GraphViewEdit(Map attributes, Object[] visible, Object[] invisible)
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 views that have changed.
Object[]	getContext() Returns the views that have not changed explicitly, but implicitly because one of their dependent cells has changed.
Object	getSource() Returns the source of this change.
boolean	isSignificant()
void	redo() Redoes a change.
void	undo() Undoes a change.

Methods inherited from class javax.swing.undo.CompoundEdit

addEdit, canRedo, canUndo, die, end, getPresentationName, getRedoPresentationName, getUndoPresentationName, isInProgress, lastEdit, toString

Methods inherited from class javax.swing.undo.AbstractUndoableEdit

replaceEdit

Methods inherited from class java.lang.Object

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

Field Detail

cells

protected Object[] cells

context

protected CellView[] context

hidden

protected CellView[] hidden

attributes

protected Map attributes

visible

protected Object[] visible

invisible

protected Object[] invisible

Constructor Detail

GraphLayoutCache.GraphViewEdit

public GraphLayoutCache.GraphViewEdit(Map nested)

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

GraphLayoutCache.GraphViewEdit

public GraphLayoutCache.GraphViewEdit(Map attributes,
                                      Object[] visible,
                                      Object[] invisible)

Constructs a GraphViewEdit. This modifies the attributes of the specified views and may be used to notify UndoListeners. This should also take an array of removed cell views, but it is not possible to add further UndoableEdits to an already executed CompoundEdit, such as a GraphModel change. Thus, to handle implicit changes -- rather than piggybacking on the model's event -- the CompoundEdit's addEdit method should be extended to accept and instantly execute sub- sequent edits (implicit changes to the view, such as removing a mapping, hiding a view or the like).

Parameters:

attributes - the map that defines the new attributes

Method Detail

isSignificant

public boolean isSignificant()

Specified by:

isSignificant in interface UndoableEdit

Overrides:

isSignificant in class CompoundEdit

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 views 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 CompoundEdit

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 CompoundEdit

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