javapoint.undo
Class UndoableSlideAfterChangeBackground

java.lang.Object
  javax.swing.undo.AbstractUndoableEdit
      javapoint.undo.UndoableSlideAfterChangeBackground

All Implemented Interfaces:

java.io.Serializable, javax.swing.undo.UndoableEdit

public class UndoableSlideAfterChangeBackground
extends javax.swing.undo.AbstractUndoableEdit

This class defines undo/redo command for the slide object after changing background.
The object of this class will be put into undo/redo stack after changing background of slide.

See Also:

Serialized Form

Field Summary

Fields inherited from class javax.swing.undo.AbstractUndoableEdit

RedoName, UndoName

Constructor Summary

UndoableSlideAfterChangeBackground(Slide element, java.awt.Color oldBackGroundColor, java.awt.image.BufferedImage oldBackGroundImage)

Method Summary

boolean	canRedo()
boolean	canUndo()
java.lang.String	getPresentationName()
void	redo() Performs redo opeation Opposite to undo operation => sets new background.
void	undo() Performs undo opeation Since it is done just after slide background was changed, undo-operation just sets old background.

Methods inherited from class javax.swing.undo.AbstractUndoableEdit

addEdit, die, getRedoPresentationName, getUndoPresentationName, isSignificant, replaceEdit, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

UndoableSlideAfterChangeBackground

public UndoableSlideAfterChangeBackground(Slide element,
                                          java.awt.Color oldBackGroundColor,
                                          java.awt.image.BufferedImage oldBackGroundImage)

Parameters:

element - represents slide after changing the background

oldBackGroundColor -

Method Detail

undo

public void undo()
          throws javax.swing.undo.CannotUndoException

Performs undo opeation
Since it is done just after slide background was changed, undo-operation just sets old background.

Specified by:

undo in interface javax.swing.undo.UndoableEdit

Overrides:

undo in class javax.swing.undo.AbstractUndoableEdit

Throws:

javax.swing.undo.CannotUndoException

redo

public final void redo()
                throws javax.swing.undo.CannotRedoException

Performs redo opeation
Opposite to undo operation => sets new background.

Specified by:

redo in interface javax.swing.undo.UndoableEdit

Overrides:

redo in class javax.swing.undo.AbstractUndoableEdit

Throws:

javax.swing.undo.CannotRedoException

canUndo

public boolean canUndo()

Specified by:

canUndo in interface javax.swing.undo.UndoableEdit

Overrides:

canUndo in class javax.swing.undo.AbstractUndoableEdit

canRedo

public boolean canRedo()

Specified by:

canRedo in interface javax.swing.undo.UndoableEdit

Overrides:

canRedo in class javax.swing.undo.AbstractUndoableEdit

getPresentationName

public java.lang.String getPresentationName()

Specified by:

getPresentationName in interface javax.swing.undo.UndoableEdit

Overrides:

getPresentationName in class javax.swing.undo.AbstractUndoableEdit