javax.swing.text
Class GapContent.InsertUndo

java.lang.Object
  javax.swing.undo.AbstractUndoableEdit
      javax.swing.text.GapContent.InsertUndo

All Implemented Interfaces:

Serializable, UndoableEdit

Enclosing class:

GapContent

class GapContent.InsertUndo

extends AbstractUndoableEdit

UnoableEdit created for inserts.

Field Summary

protected int	length Length of string inserted.
protected int	offset Where string was inserted.
protected Vector	posRefs An array of instances of UndoPosRef for the Positions in the range that was removed, valid after undo.
protected String	string The string that was inserted.

Fields inherited from class javax.swing.undo.AbstractUndoableEdit

RedoName, UndoName

Constructor Summary

protected

GapContent.InsertUndo(int offset, int length)

Method Summary

void	redo() Throws CannotRedoException if canRedo returns false.
void	undo() Throws CannotUndoException if canUndo returns false.

Methods inherited from class javax.swing.undo.AbstractUndoableEdit

addEdit, canRedo, canUndo, die, getPresentationName, getRedoPresentationName, getUndoPresentationName, isSignificant, replaceEdit, toString

Methods inherited from class java.lang.Object

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

Field Detail

offset

protected int offset

Where string was inserted.

length

protected int length

Length of string inserted.

string

protected String string

The string that was inserted. This will only be valid after an undo.

posRefs

protected Vector posRefs

An array of instances of UndoPosRef for the Positions in the range that was removed, valid after undo.

Constructor Detail

GapContent.InsertUndo

protected GapContent.InsertUndo(int offset,
                                int length)

Method Detail

undo

public void undo()
          throws CannotUndoException

Description copied from class: AbstractUndoableEdit

Throws CannotUndoException if canUndo returns false. Sets hasBeenDone to false. Subclasses should override to undo the operation represented by this edit. Override should begin with a call to super.

Specified by:

undo in interface UndoableEdit

Overrides:

undo in class AbstractUndoableEdit

Throws:

CannotUndoException - if canUndo returns false

See Also:

AbstractUndoableEdit.canUndo()

redo

public void redo()
          throws CannotRedoException

Description copied from class: AbstractUndoableEdit

Throws CannotRedoException if canRedo returns false. Sets hasBeenDone to true. Subclasses should override to redo the operation represented by this edit. Override should begin with a call to super.

Specified by:

redo in interface UndoableEdit

Overrides:

redo in class AbstractUndoableEdit

Throws:

CannotRedoException - if canRedo returns false

See Also:

AbstractUndoableEdit.canRedo()