au.edu.swin.synergy.plugin.diagram
Class BViewport.BUndoableEdit

java.lang.Object
  |
  +--javax.swing.undo.AbstractUndoableEdit
        |
        +--au.edu.swin.synergy.plugin.diagram.BViewport.BUndoableEdit

public class BViewport.BUndoableEdit

extends AbstractUndoableEdit

Every time an edit is made, this will be used to determine what to do when it is undone or redone.

Author:

Tristan Austin

See Also:

Serialized Form

Fields inherited from class javax.swing.undo.AbstractUndoableEdit

RedoName, UndoName

Constructor Summary

BViewport.BUndoableEdit(BDrawable[] drawable, BScalarPoint point, int type)

BViewport.BUndoableEdit(BDrawable drawable, BScalarPoint point, int type)
Creates a new undoable event for the specified drawable and type.

BViewport.BUndoableEdit(BDrawable drawable, BScalarPoint point, int param, int type)

BViewport.BUndoableEdit(BDrawable drawable, Point point, int type)

Method Summary

String	getPresentationName() Returns an appropriate description of the operation this edit represents.
String	getRedoPresentationName() If getPresentationName() returns "", returns AbstractUndoableEdit.RedoName.
String	getUndoPresentationName() If getPresentationName() returns "", returns AbstractUndoableEdit.UndoName.
void	redo() Re-apply the edit, assuming that it has been undone.
void	undo() Undo the edit that was made.

Methods inherited from class javax.swing.undo.AbstractUndoableEdit

addEdit, canRedo, canUndo, die, isSignificant, replaceEdit, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

BViewport.BUndoableEdit

public BViewport.BUndoableEdit(BDrawable drawable,
                               BScalarPoint point,
                               int type)

Creates a new undoable event for the specified drawable and type.

Parameters:

drawable - The element affected

point - The location it was removed from or added to

type - Whether it was added or removed

BViewport.BUndoableEdit

public BViewport.BUndoableEdit(BDrawable drawable,
                               Point point,
                               int type)

BViewport.BUndoableEdit

public BViewport.BUndoableEdit(BDrawable[] drawable,
                               BScalarPoint point,
                               int type)

BViewport.BUndoableEdit

public BViewport.BUndoableEdit(BDrawable drawable,
                               BScalarPoint point,
                               int param,
                               int type)

Method Detail

undo

public void undo()
          throws CannotUndoException

Undo the edit that was made.

Overrides:

undo in class AbstractUndoableEdit

redo

public void redo()
          throws CannotRedoException

Re-apply the edit, assuming that it has been undone.

Overrides:

redo in class AbstractUndoableEdit

getPresentationName

public String getPresentationName()

Returns an appropriate description of the operation this edit represents.

Overrides:

getPresentationName in class AbstractUndoableEdit

See Also:

getUndoPresentationName(), getRedoPresentationName()

getUndoPresentationName

public String getUndoPresentationName()

If getPresentationName() returns "", returns AbstractUndoableEdit.UndoName. Otherwise returns AbstractUndoableEdit.UndoName followed by a space and getPresentationName()

Overrides:

getUndoPresentationName in class AbstractUndoableEdit

See Also:

getPresentationName()

getRedoPresentationName

public String getRedoPresentationName()

If getPresentationName() returns "", returns AbstractUndoableEdit.RedoName. Otherwise returns AbstractUndoableEdit.RedoName followed by a space and getPresentationName()

Overrides:

getRedoPresentationName in class AbstractUndoableEdit

See Also:

getPresentationName()