javax.swing.text

Class DefaultStyledDocument.AttributeUndoableEdit

java.lang.Object

javax.swing.undo.AbstractUndoableEdit

javax.swing.text.DefaultStyledDocument.AttributeUndoableEdit

All Implemented Interfaces:

Serializable, UndoableEdit

Enclosing class:

DefaultStyledDocument

public static class DefaultStyledDocument.AttributeUndoableEdit
extends AbstractUndoableEdit

An UndoableEdit that can undo attribute changes to an element.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected AttributeSet	copy A copy of the old attributes.
protected Element	element The element that has changed.
protected boolean	isReplacing If the new attributes replaced the old attributes or if they only were added to them.
protected AttributeSet	newAttributes The new attributes.

Fields inherited from class javax.swing.undo.AbstractUndoableEdit

RedoName, UndoName

Constructor Summary

Constructors

Constructor and Description
DefaultStyledDocument.AttributeUndoableEdit(Element el, AttributeSet newAtts, boolean replacing) Creates a new AttributeUndoableEdit.

Method Summary

Methods

Modifier and Type	Method and Description
void	redo() Redos an attribute change.
void	undo() Undos the attribute change.

Methods inherited from class javax.swing.undo.AbstractUndoableEdit

addEdit, canRedo, canUndo, die, getPresentationName, getRedoPresentationName, getUndoPresentationName, isSignificant, replaceEdit, toString

Methods inherited from class java.lang.Object

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

Field Detail

copy

protected AttributeSet copy

A copy of the old attributes.

newAttributes

protected AttributeSet newAttributes

The new attributes.

isReplacing

protected boolean isReplacing

If the new attributes replaced the old attributes or if they only were added to them.

element

protected Element element

The element that has changed.

Constructor Detail

DefaultStyledDocument.AttributeUndoableEdit

public DefaultStyledDocument.AttributeUndoableEdit(Element el,
                                           AttributeSet newAtts,
                                           boolean replacing)

Creates a new AttributeUndoableEdit.

Parameters:

el - the element that changes attributes

newAtts - the new attributes

replacing - if the new attributes replace the old or only append to them

Method Detail

undo

public void undo()

Undos the attribute change. The copy field is set as attributes on element.

Specified by:

undo in interface UndoableEdit

Overrides:

undo in class AbstractUndoableEdit

See Also:

AbstractUndoableEdit.canUndo(), AbstractUndoableEdit.redo()

redo

public void redo()

Redos an attribute change. This adds newAttributes to the element's attribute set, possibly clearing all attributes if isReplacing is true.

Specified by:

redo in interface UndoableEdit

Overrides:

redo in class AbstractUndoableEdit

See Also:

AbstractUndoableEdit.canRedo(), AbstractUndoableEdit.undo()