Class GraphUndoManager

java.lang.Object

javax.swing.undo.AbstractUndoableEdit

javax.swing.undo.CompoundEdit

javax.swing.undo.UndoManager

org.jgraph.graph.GraphUndoManager

All Implemented Interfaces:

Serializable, EventListener, UndoableEditListener, UndoableEdit

public class GraphUndoManager
extends UndoManager

An UndoManager that may be shared among multiple GraphLayoutCache's.

See Also:

• Serialized Form

Field Summary

Fields inherited from class CompoundEdit

edits

Fields inherited from class AbstractUndoableEdit

RedoName, UndoName

Constructor Summary

Constructors

Constructor	Description
GraphUndoManager()

Method Summary

Modifier and Type	Method	Description
boolean	canRedo(Object source)	Overridden to preserve usual semantics: returns true if a redo operation would be successful now for the given view, false otherwise
boolean	canUndo(Object source)	Overridden to preserve usual semantics: returns true if an undo operation would be successful now for the given view, false otherwise
protected UndoableEdit	editToBeRedone(Object source)
protected UndoableEdit	editToBeUndone(Object source)
protected UndoableEdit	nextEditToBeRedone(UndoableEdit current)	Returns the the next significant edit wrt to current to be redone if redo is called.
protected UndoableEdit	nextEditToBeUndone(UndoableEdit current)	Returns the the next significant edit wrt to current to be undone if undo is called.
void	redo(Object source)	If this UndoManager is inProgress, redoes the last significant UndoableEdit with respect to source or after, and all insignificant edits up to it.
void	undo(Object source)	If this UndoManager is inProgress, undo the last significant UndoableEdit wrt to source, and all insignificant edits back to it.

Methods inherited from class UndoManager

addEdit, canRedo, canUndo, canUndoOrRedo, discardAllEdits, editToBeRedone, editToBeUndone, end, getLimit, getRedoPresentationName, getUndoOrRedoPresentationName, getUndoPresentationName, redo, redoTo, setLimit, toString, trimEdits, trimForLimit, undo, undoableEditHappened, undoOrRedo, undoTo

Methods inherited from class CompoundEdit

die, getPresentationName, isInProgress, isSignificant, lastEdit

Methods inherited from class AbstractUndoableEdit

replaceEdit

Methods inherited from class Object

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

Constructor Details

GraphUndoManager

public GraphUndoManager()

Method Details

canUndo

public boolean canUndo(Object source)

Overridden to preserve usual semantics: returns true if an undo operation would be successful now for the given view, false otherwise

canRedo

public boolean canRedo(Object source)

Overridden to preserve usual semantics: returns true if a redo operation would be successful now for the given view, false otherwise

undo

public void undo(Object source)

If this UndoManager is inProgress, undo the last significant UndoableEdit wrt to source, and all insignificant edits back to it. Updates indexOfNextAdd accordingly.

If not inProgress, indexOfNextAdd is ignored and super's routine is called.

See Also:

• UndoManager.undo()

editToBeUndone

protected UndoableEdit editToBeUndone(Object source)

nextEditToBeUndone

protected UndoableEdit nextEditToBeUndone(UndoableEdit current)

Returns the the next significant edit wrt to current to be undone if undo is called. May return null.

redo

public void redo(Object source)

If this UndoManager is inProgress, redoes the last significant UndoableEdit with respect to source or after, and all insignificant edits up to it. Updates indexOfNextAdd accordingly.

If not inProgress, indexOfNextAdd is ignored and super's routine is called.

editToBeRedone

protected UndoableEdit editToBeRedone(Object source)

nextEditToBeRedone

protected UndoableEdit nextEditToBeRedone(UndoableEdit current)

Returns the the next significant edit wrt to current to be redone if redo is called. May return null.