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public interface Undoable
Interface implemented by classes that support undo.
Method Summary | |
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void |
addUndoPoint()
adds an undo point to the undo history |
boolean |
canUndo()
returns whether an undo is possible, i.e. |
void |
clearUndo()
removes the undo history |
boolean |
isUndoEnabled()
returns whether undo support is enabled |
void |
setUndoEnabled(boolean enabled)
sets whether undo support is enabled |
void |
undo()
undoes the last action |
Method Detail |
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boolean isUndoEnabled()
void setUndoEnabled(boolean enabled)
void clearUndo()
boolean canUndo()
void undo()
void addUndoPoint()
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