JGraph
v5.0


org.jgraph.graph
Class GraphLayoutCache.GraphViewEdit

java.lang.Object
  extended by javax.swing.undo.AbstractUndoableEdit
      extended by javax.swing.undo.CompoundEdit
          extended by org.jgraph.graph.GraphLayoutCache.GraphViewEdit
All Implemented Interfaces:
java.io.Serializable, javax.swing.undo.UndoableEdit, GraphModelEvent.ExecutableGraphChange, GraphModelEvent.GraphViewChange
Enclosing class:
GraphLayoutCache

public class GraphLayoutCache.GraphViewEdit
extends javax.swing.undo.CompoundEdit
implements GraphModelEvent.GraphViewChange, GraphModelEvent.ExecutableGraphChange

An implementation of GraphViewChange.

See Also:
Serialized Form

Field Summary
protected  java.util.Map attributes
           
protected  java.lang.Object[] cells
           
protected  CellView[] context
           
protected  CellView[] hidden
           
protected  java.lang.Object[] invisible
           
protected  java.lang.Object[] visible
           
 
Fields inherited from class javax.swing.undo.CompoundEdit
edits
 
Fields inherited from class javax.swing.undo.AbstractUndoableEdit
RedoName, UndoName
 
Constructor Summary
GraphLayoutCache.GraphViewEdit(java.util.Map nested)
          Constructs a GraphViewEdit.
GraphLayoutCache.GraphViewEdit(java.util.Map attributes, java.lang.Object[] visible, java.lang.Object[] invisible)
          Constructs a GraphViewEdit.
 
Method Summary
 void execute()
          Execute this edit such that the next invocation to this method will invert the last execution.
 java.util.Map getAttributes()
          Returns a map of (cell view, attribute) pairs.
 java.lang.Object[] getChanged()
          Returns the views that have changed.
 java.lang.Object[] getContext()
          Returns the views that have not changed explicitly, but implicitly because one of their dependent cells has changed.
 java.lang.Object getSource()
          Returns the source of this change.
 boolean isSignificant()
           
 void redo()
          Redoes a change.
 void undo()
          Undoes a change.
 
Methods inherited from class javax.swing.undo.CompoundEdit
addEdit, canRedo, canUndo, die, end, getPresentationName, getRedoPresentationName, getUndoPresentationName, isInProgress, lastEdit, toString
 
Methods inherited from class javax.swing.undo.AbstractUndoableEdit
replaceEdit
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

cells

protected java.lang.Object[] cells

context

protected CellView[] context

hidden

protected CellView[] hidden

attributes

protected java.util.Map attributes

visible

protected java.lang.Object[] visible

invisible

protected java.lang.Object[] invisible
Constructor Detail

GraphLayoutCache.GraphViewEdit

public GraphLayoutCache.GraphViewEdit(java.util.Map nested)
Constructs a GraphViewEdit. This modifies the attributes of the specified views and may be used to notify UndoListeners.

Parameters:
viewAttributes - the map that defines the new attributes

GraphLayoutCache.GraphViewEdit

public GraphLayoutCache.GraphViewEdit(java.util.Map attributes,
                                      java.lang.Object[] visible,
                                      java.lang.Object[] invisible)
Constructs a GraphViewEdit. This modifies the attributes of the specified views and may be used to notify UndoListeners. This should also take an array of removed cell views, but it is not possible to add further UndoableEdits to an already executed CompoundEdit, such as a GraphModel change. Thus, to handle implicit changes -- rather than piggybacking on the model's event -- the CompoundEdit's addEdit method should be extended to accept and instantly execute sub- sequent edits (implicit changes to the view, such as removing a mapping, hiding a view or the like).

Parameters:
viewAttributes - the map that defines the new attributes
Method Detail

isSignificant

public boolean isSignificant()
Specified by:
isSignificant in interface javax.swing.undo.UndoableEdit
Overrides:
isSignificant in class javax.swing.undo.CompoundEdit

getSource

public java.lang.Object getSource()
Returns the source of this change. This can either be a view or a model, if this change is a GraphModelChange.

Specified by:
getSource in interface GraphModelEvent.GraphViewChange

getChanged

public java.lang.Object[] getChanged()
Returns the views that have changed.

Specified by:
getChanged in interface GraphModelEvent.GraphViewChange

getContext

public java.lang.Object[] getContext()
Returns the views that have not changed explicitly, but implicitly because one of their dependent cells has changed.

Specified by:
getContext in interface GraphModelEvent.GraphViewChange

getAttributes

public java.util.Map getAttributes()
Returns a map of (cell view, attribute) pairs.

Specified by:
getAttributes in interface GraphModelEvent.GraphViewChange

redo

public void redo()
          throws javax.swing.undo.CannotRedoException
Redoes a change.

Specified by:
redo in interface javax.swing.undo.UndoableEdit
Overrides:
redo in class javax.swing.undo.CompoundEdit
Throws:
javax.swing.undo.CannotRedoException - if the change cannot be redone

undo

public void undo()
          throws javax.swing.undo.CannotUndoException
Undoes a change.

Specified by:
undo in interface javax.swing.undo.UndoableEdit
Overrides:
undo in class javax.swing.undo.CompoundEdit
Throws:
javax.swing.undo.CannotUndoException - if the change cannot be undone

execute

public void execute()
Execute this edit such that the next invocation to this method will invert the last execution.

Specified by:
execute in interface GraphModelEvent.ExecutableGraphChange

JGraph
v5.0


Copyright (C) 2003-2004 Gaudenz Alder. All rights reserved.