templates.diagram.actions
Class DiagramUndoableEdits.CreateConnectorEdit

java.lang.Object
  javax.swing.undo.AbstractUndoableEdit
      templates.diagram.actions.AbstractDiagramUndoableEdit
          templates.diagram.actions.DiagramUndoableEdits.CreateConnectorEdit

All Implemented Interfaces:

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

Enclosing class:

DiagramUndoableEdits

public static class DiagramUndoableEdits.CreateConnectorEdit
extends AbstractDiagramUndoableEdit

Edit which does and undoes the creation of a Connector in a TemplateDiagram.

Author:

Lenko Grigorov

See Also:

Serialized Form

Field Summary

protected Connector	connector Holds the new Connector once it is created.
protected TemplateDiagram	diagram The TemplateDiagram where the Connector should be created.
protected Entity	left The first Entity to be linked.
protected Entity	right The second Entity to be linked.

Fields inherited from class templates.diagram.actions.AbstractDiagramUndoableEdit

usePluralDescription

Fields inherited from class javax.swing.undo.AbstractUndoableEdit

RedoName, UndoName

Constructor Summary

DiagramUndoableEdits.CreateConnectorEdit(TemplateDiagram diagram, Entity left, Entity right)
Constructs an edit with the given parameters.

Method Summary

boolean	canRedo()
boolean	canUndo()
Connector	getConnector() Retrieves the Connector created by the edit.
java.lang.String	getPresentationName() Returns the name that should be displayed besides the Undo/Redo menu items, so the user knows which action will be undone/redone.
void	redo() Has to be called once after the instantiation of the edit, in order to enact it.
void	undo()

Methods inherited from class templates.diagram.actions.AbstractDiagramUndoableEdit

setLastOfMultiple

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

Field Detail

diagram

protected TemplateDiagram diagram

The TemplateDiagram where the Connector should be created.

left

protected Entity left

The first Entity to be linked.

A connector is symmetric. "Left" and "right" are used only to enable addressing the two linked entities separately.

right

protected Entity right

The second Entity to be linked.

A connector is symmetric. "Left" and "right" are used only to enable addressing the two linked entities separately.

connector

protected Connector connector

Holds the new Connector once it is created.

Constructor Detail

DiagramUndoableEdits.CreateConnectorEdit

public DiagramUndoableEdits.CreateConnectorEdit(TemplateDiagram diagram,
                                                Entity left,
                                                Entity right)

Constructs an edit with the given parameters.

A connector is symmetric. "Left" and "right" are used only to enable addressing the two linked entities separately.

Parameters:

diagram - the TemplateDiagram where the Connector should be created

left - the first Entity to be linked

right - the second Entity to be linked

Method Detail

getConnector

public Connector getConnector()

Retrieves the Connector created by the edit.

Returns:

the Connector created by the edit

redo

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

Has to be called once after the instantiation of the edit, in order to enact it.

Specified by:

redo in interface javax.swing.undo.UndoableEdit

Overrides:

redo in class javax.swing.undo.AbstractUndoableEdit

Throws:

javax.swing.undo.CannotRedoException

undo

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

Specified by:

undo in interface javax.swing.undo.UndoableEdit

Overrides:

undo in class javax.swing.undo.AbstractUndoableEdit

Throws:

javax.swing.undo.CannotUndoException

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()

Returns the name that should be displayed besides the Undo/Redo menu items, so the user knows which action will be undone/redone.

Specified by:

getPresentationName in interface javax.swing.undo.UndoableEdit

Overrides:

getPresentationName in class javax.swing.undo.AbstractUndoableEdit