org.jgraph.graph
Class GraphUndoManager
java.lang.Object
|
+--javax.swing.undo.AbstractUndoableEdit
|
+--javax.swing.undo.CompoundEdit
|
+--javax.swing.undo.UndoManager
|
+--org.jgraph.graph.GraphUndoManager
- All Implemented Interfaces:
- EventListener, Serializable, UndoableEdit, UndoableEditListener
- public class GraphUndoManager
- extends UndoManager
An UndoManager that may be shared among multiple GraphLayoutCache's.
- See Also:
- Serialized Form
Methods inherited from class javax.swing.undo.UndoManager |
addEdit, canRedo, canUndo, canUndoOrRedo, discardAllEdits, editToBeRedone, editToBeUndone, end, getLimit, getRedoPresentationName, getUndoOrRedoPresentationName, getUndoPresentationName, redo, redoTo, setLimit, toString, trimEdits, trimForLimit, undo, undoableEditHappened, undoOrRedo, undoTo |
GraphUndoManager
public GraphUndoManager()
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.
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