javapoint.undo
Class UndoableGraphicObjectAfterChangeProperties

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

All Implemented Interfaces:

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

public class UndoableGraphicObjectAfterChangeProperties
extends javax.swing.undo.AbstractUndoableEdit

This class defines undo/redo command for the grafic object after changing properties (color, stroke, ...).
The object of this class will be put into undo/redo stack after the graphic object has changed its properties.

See Also:

Serialized Form

Field Summary

Fields inherited from class javax.swing.undo.AbstractUndoableEdit

RedoName, UndoName

Constructor Summary

UndoableGraphicObjectAfterChangeProperties(GraphicObject element, java.awt.Color oldFillColor, int oldFillAlpha, java.awt.Color oldLineColor, int oldLineWidth, GraphicObject.LineStyle oldLineStyle)

Method Summary

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

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

UndoableGraphicObjectAfterChangeProperties

public UndoableGraphicObjectAfterChangeProperties(GraphicObject element,
                                                  java.awt.Color oldFillColor,
                                                  int oldFillAlpha,
                                                  java.awt.Color oldLineColor,
                                                  int oldLineWidth,
                                                  GraphicObject.LineStyle oldLineStyle)

Parameters:

element - represents graphic object with updated properties.

oldFillColor -

oldFillAlpha -

oldLineColor -

oldLineWidth -

oldLineStyle -

Method Detail

undo

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

Performs undo opeation
Since it is done just after the graphic object changed properties, undo-operation just sets old properties.

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 => set new properties to graphic object.

Specified by:

redo in interface javax.swing.undo.UndoableEdit

Overrides:

redo in class javax.swing.undo.AbstractUndoableEdit

Throws:

javax.swing.undo.CannotRedoException

canUndo

public final boolean canUndo()

Specified by:

canUndo in interface javax.swing.undo.UndoableEdit

Overrides:

canUndo in class javax.swing.undo.AbstractUndoableEdit

canRedo

public final boolean canRedo()

Specified by:

canRedo in interface javax.swing.undo.UndoableEdit

Overrides:

canRedo in class javax.swing.undo.AbstractUndoableEdit

getPresentationName

public final java.lang.String getPresentationName()

Specified by:

getPresentationName in interface javax.swing.undo.UndoableEdit

Overrides:

getPresentationName in class javax.swing.undo.AbstractUndoableEdit