kaapo.projectmanager.command
Class AbstractUndoableEdit

java.lang.Object
  javax.swing.undo.AbstractUndoableEdit
      kaapo.projectmanager.command.AbstractUndoableEdit

All Implemented Interfaces:

Serializable, UndoableEdit

Direct Known Subclasses:

AddConnectionEdit, AddElementEdit, ChangeDiagramNameEdit, ChangeProjectNameEdit, ModifyDComponentAttributeEdit, MoveConnectionPointEdit, MoveDComponentEdit, MoveDiagramDownEdit, MoveDiagramUpEdit, NewDiagramEdit, RemoveDComponentEdit, RemoveDiagramEdit, ResizeElementEdit

public abstract class AbstractUndoableEdit
extends AbstractUndoableEdit

Abstract class that all the Edits extend.

Author:

hprajani

See Also:

Serialized Form

Field Summary

protected ProjectManager	pm
protected DiagramWrapper	visibleDiagram

Fields inherited from class javax.swing.undo.AbstractUndoableEdit

RedoName, UndoName

Constructor Summary

AbstractUndoableEdit()

Method Summary

boolean	canRedo()
boolean	canUndo()
protected void	changeCorrectVisibleDiagram(ProjectManager pm, DiagramWrapper visibleDiagram) Changes the visible diagram into the correct given one if the current visible one is something else.
abstract void	execute(ProjectManager pm) Executes the created Edit inside the given environment.

Methods inherited from class javax.swing.undo.AbstractUndoableEdit

addEdit, die, getPresentationName, getRedoPresentationName, getUndoPresentationName, isSignificant, redo, replaceEdit, toString, undo

Methods inherited from class java.lang.Object

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

Field Detail

pm

protected ProjectManager pm

visibleDiagram

protected DiagramWrapper visibleDiagram

Constructor Detail

AbstractUndoableEdit

public AbstractUndoableEdit()

Method Detail

execute

public abstract void execute(ProjectManager pm)
                      throws EditFailedException

Executes the created Edit inside the given environment.

Parameters:

pm - the enviroment where the Edit is executed in.

Throws:

EditFailedException - if the edit fails for some reason

changeCorrectVisibleDiagram

protected void changeCorrectVisibleDiagram(ProjectManager pm,
                                           DiagramWrapper visibleDiagram)

Changes the visible diagram into the correct given one if the current visible one is something else. This is mainly used when undoing or redoing stuff.

Parameters:

pm - the environment where the Edit's view is executed in. (This is done because if we use the field this.pm there can be a NullPointerException)

visibleDiagram - the latest visibleDiagram

canUndo

public boolean canUndo()

Specified by:

canUndo in interface UndoableEdit

Overrides:

canUndo in class AbstractUndoableEdit

See Also:

UndoableEdit.canUndo()

canRedo

public boolean canRedo()

Specified by:

canRedo in interface UndoableEdit

Overrides:

canRedo in class AbstractUndoableEdit

See Also:

UndoableEdit.canRedo()