ilog.views.hypergraph.undo

Class IlvAbstractGraphicEdit

java.lang.Object

javax.swing.undo.AbstractUndoableEdit

ilog.views.hypergraph.undo.IlvAbstractGraphicEdit

All Implemented Interfaces:

IlvGraphicEdit, Serializable, UndoableEdit

Direct Known Subclasses:

IlvPropertiesEdit

public abstract class IlvAbstractGraphicEdit
extends AbstractUndoableEdit
implements IlvGraphicEdit

An abstract implementation of a graphic edit. You must implement the methods undoImpl and redoImpl.

Since:

JViews 8.0

See Also:

Serialized Form

Field Summary

Fields inherited from class javax.swing.undo.AbstractUndoableEdit

RedoName, UndoName

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	IlvAbstractGraphicEdit() The constructor.

Method Summary

Modifier and Type	Method and Description
void	after(IlvGraphic g) Fill the edit with information about the status of the graphic object after it has changed.
void	before(IlvGraphic g) Fill the edit with information about the status of the graphic object before it has changed.
IlvGraphic	getObject() Returns the affected graphic object.
void	redo() Performs a redo.
protected abstract void	redoImpl(IlvGraphic g) Performs the redo on the graphic object.
void	undo() Performs an undo.
protected abstract void	undoImpl(IlvGraphic g) Performs the undo on the graphic object.

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

Methods inherited from interface javax.swing.undo.UndoableEdit

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

Constructor Detail

IlvAbstractGraphicEdit

protected IlvAbstractGraphicEdit()

The constructor.

Method Detail

before

public void before(IlvGraphic g)

Fill the edit with information about the status of the graphic object before it has changed.

Specified by:

before in interface IlvGraphicEdit

after

public void after(IlvGraphic g)

Fill the edit with information about the status of the graphic object after it has changed.

Specified by:

after in interface IlvGraphicEdit

getObject

public IlvGraphic getObject()

Returns the affected graphic object.

undo

public void undo()
          throws CannotUndoException

Performs an undo. It calls applyToObject on the graphic object passed to before(ilog.views.IlvGraphic) and then calls undoImpl(ilog.views.IlvGraphic).

Specified by:

undo in interface UndoableEdit

Overrides:

undo in class AbstractUndoableEdit

Throws:

CannotUndoException - if canUndo returns false

redo

public void redo()
          throws CannotRedoException

Performs a redo. It calls applyToObject on the graphic object passed to before(ilog.views.IlvGraphic) and then calls redoImpl(ilog.views.IlvGraphic).

Specified by:

redo in interface UndoableEdit

Overrides:

redo in class AbstractUndoableEdit

Throws:

CannotRedoException - if canRedo returns false

undoImpl

protected abstract void undoImpl(IlvGraphic g)
                          throws CannotRedoException

Performs the undo on the graphic object. This call is encapsulated in an applyToObject on the graphic object, therefore it is safe to modify the graphic object directly.

Parameters:

g - The graphic object.

Throws:

CannotUndoException - if canUndo returns false

CannotRedoException

redoImpl

protected abstract void redoImpl(IlvGraphic g)
                          throws CannotRedoException

Performs the redo on the graphic object. This call is encapsulated in an applyToObject on the graphic object, therefore it is safe to modify the graphic object directly.

Parameters:

g - The graphic object.

Throws:

CannotRedoException - if canRedo returns false