javax.swing.text

Class DefaultStyledDocument.AttributeUndoableEdit

public static class DefaultStyledDocument.AttributeUndoableEdit extends AbstractUndoableEdit

An {@link UndoableEdit} that can undo attribute changes to an element.

Field Summary
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.

Constructor Summary
	AttributeUndoableEdit(Element el, AttributeSet newAtts, boolean replacing) Creates a new `AttributeUndoableEdit`.

Method Summary
void	redo() Redos an attribute change.
void	undo() Undos the attribute change.

Field Detail

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.

public 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

public void redo()

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

public void undo()

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