org.jgraph.graph
Class GraphUndoManager
UndoManager
org.jgraph.graph.GraphUndoManager
public class GraphUndoManager
extends UndoManager
An UndoManager that may be shared among multiple GraphLayoutCache's.
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
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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
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protected UndoableEdit | editToBeRedone(Object source)
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protected UndoableEdit | editToBeUndone(Object source)
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protected UndoableEdit | nextEditToBeRedone(UndoableEdit current) - Returns the the next significant edit wrt to current
to be redone if redo is called.
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protected UndoableEdit | nextEditToBeUndone(UndoableEdit current) - Returns the the next significant edit wrt to current
to be undone if undo is called.
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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.
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void | undo(Object source) - If this UndoManager is inProgress, undo the last significant
UndoableEdit wrt to source, and all insignificant edits back to
it.
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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
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
editToBeRedone
protected UndoableEdit editToBeRedone(Object source)
editToBeUndone
protected UndoableEdit editToBeUndone(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.
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.
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.
Copyright (C) 2001-2006 Gaudenz Alder. All rights reserved.