org.jgraph.graph
Class GraphLayoutCache.GraphLayoutCacheEdit

java.lang.Object
  javax.swing.undo.AbstractUndoableEdit
      javax.swing.undo.CompoundEdit
          org.jgraph.graph.GraphLayoutCache.GraphLayoutCacheEdit

All Implemented Interfaces:

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

Enclosing class:

GraphLayoutCache

public class GraphLayoutCache.GraphLayoutCacheEdit
extends javax.swing.undo.CompoundEdit
implements GraphLayoutCacheEvent.GraphLayoutCacheChange

An implementation of GraphLayoutCacheChange.

See Also:

Serialized Form

Field Summary

protected java.util.Map	attributes
protected java.lang.Object[]	cells
protected java.util.Set	changedCells
protected CellView[]	context
protected java.awt.geom.Rectangle2D	dirtyRegion The dirty region associated with this event prior to the change
protected CellView[]	hidden
protected java.lang.Object[]	invisible
protected java.util.Map	previousAttributes
protected java.lang.Object[]	previousCells
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.GraphLayoutCacheEdit(java.util.Map nested)
Constructs a GraphViewEdit.

GraphLayoutCache.GraphLayoutCacheEdit(java.lang.Object[] inserted, 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 cell 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.awt.geom.Rectangle2D	getDirtyRegion() Returns the dirty region for the original position of the changed cells before the change happened.
java.lang.Object[]	getInserted() Returns the cells that habe been made visible.
java.util.Map	getPreviousAttributes() Returns a map of (cell view, attribute) pairs.
java.lang.Object[]	getRemoved() Returns the cells that have changed.
java.lang.Object	getSource() Returns the source of this change.
boolean	isSignificant()
void	redo() Redoes a change.
void	setDirtyRegion(java.awt.geom.Rectangle2D dirty) In some cases the class firing this event will not have access to the dirty region prior to the 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

previousCells

protected java.lang.Object[] previousCells

context

protected CellView[] context

hidden

protected CellView[] hidden

attributes

protected java.util.Map attributes

previousAttributes

protected java.util.Map previousAttributes

visible

protected java.lang.Object[] visible

invisible

protected java.lang.Object[] invisible

dirtyRegion

protected java.awt.geom.Rectangle2D dirtyRegion

The dirty region associated with this event prior to the change

changedCells

protected java.util.Set changedCells

Constructor Detail

GraphLayoutCache.GraphLayoutCacheEdit

public GraphLayoutCache.GraphLayoutCacheEdit(java.util.Map nested)

Constructs a GraphViewEdit. This modifies the attributes of the specified views and may be used to notify UndoListeners.

Parameters:

nested - the map that defines the new attributes

GraphLayoutCache.GraphLayoutCacheEdit

public GraphLayoutCache.GraphLayoutCacheEdit(java.lang.Object[] inserted,
                                             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:

inserted - an array of inserted cells

attributes - the map that defines the new attributes

visible - an array defining which cells are visible

invisible - an array defining which cells are invisible

Method Detail

getSource

public java.lang.Object getSource()

Description copied from interface: GraphLayoutCacheEvent.GraphLayoutCacheChange

Returns the source of this change. This can either be a view or a model, if this change is a GraphModelChange. Note: This is not necessarily the same as the source of the event and is used separately in the graphundomanager.

Specified by:

getSource in interface GraphLayoutCacheEvent.GraphLayoutCacheChange

Returns:

the source fo this change

isSignificant

public boolean isSignificant()

Specified by:

isSignificant in interface javax.swing.undo.UndoableEdit

Overrides:

isSignificant in class javax.swing.undo.CompoundEdit

getChanged

public java.lang.Object[] getChanged()

Returns the cell views that have changed.

Specified by:

getChanged in interface GraphLayoutCacheEvent.GraphLayoutCacheChange

Returns:

the cell changed

getInserted

public java.lang.Object[] getInserted()

Returns the cells that habe been made visible.

Specified by:

getInserted in interface GraphLayoutCacheEvent.GraphLayoutCacheChange

Returns:

the cells that were inserted by the change

getRemoved

public java.lang.Object[] getRemoved()

Returns the cells that have changed.

Specified by:

getRemoved in interface GraphLayoutCacheEvent.GraphLayoutCacheChange

Returns:

the cells that were removed by the change

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 GraphLayoutCacheEvent.GraphLayoutCacheChange

Returns:

array of contextual cells

getAttributes

public java.util.Map getAttributes()

Returns a map of (cell view, attribute) pairs.

Specified by:

getAttributes in interface GraphLayoutCacheEvent.GraphLayoutCacheChange

getPreviousAttributes

public java.util.Map getPreviousAttributes()

Returns a map of (cell view, attribute) pairs.

Specified by:

getPreviousAttributes in interface GraphLayoutCacheEvent.GraphLayoutCacheChange

Returns:

map of attributes before the change

getDirtyRegion

public java.awt.geom.Rectangle2D getDirtyRegion()

Description copied from interface: GraphLayoutCacheEvent.GraphLayoutCacheChange

Returns the dirty region for the original position of the changed cells before the change happened.

Specified by:

getDirtyRegion in interface GraphLayoutCacheEvent.GraphLayoutCacheChange

Returns:

the dirty region prior to the event

setDirtyRegion

public void setDirtyRegion(java.awt.geom.Rectangle2D dirty)

Description copied from interface: GraphLayoutCacheEvent.GraphLayoutCacheChange

In some cases the class firing this event will not have access to the dirty region prior to the change. It is then up to the receiving class to set it once.

Specified by:

setDirtyRegion in interface GraphLayoutCacheEvent.GraphLayoutCacheChange

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.