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 used to remember AttributeSet changes to an Element.

Field Summary

Modifier and Type	Field	Description
`protected AttributeSet`	`copy`	Copy of the AttributeSet the Element contained.
`protected Element`	`element`	Affected Element.
`protected boolean`	`isReplacing`	true if all the attributes in the element were removed first.
`protected AttributeSet`	`newAttributes`	AttributeSet containing additional entries, must be non-mutable!

Fields declared in class AbstractUndoableEdit

RedoName, UndoName

Modifier and Type	Field	Description
`protected static final String`	`RedoName`	String returned by `getRedoPresentationName`; as of Java 2 platform v1.3.1 this field is no longer used.
`protected static final String`	`UndoName`	String returned by `getUndoPresentationName`; as of Java 2 platform v1.3.1 this field is no longer used.

Constructor Summary

Constructor	Description
`AttributeUndoableEdit(Element element, AttributeSet newAttributes, boolean isReplacing)`	Constructs an `AttributeUndoableEdit`.

Method Summary

Modifier and Type	Method	Description
`void`	`redo()`	Redoes a change.
`void`	`undo()`	Undoes a change.

Methods declared in class AbstractUndoableEdit

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

Modifier and Type	Method	Description
`boolean`	`addEdit(UndoableEdit anEdit)`	This default implementation returns false.
`boolean`	`canRedo()`	Returns `true` if this edit is `alive` and `hasBeenDone` is `false`.
`boolean`	`canUndo()`	Returns true if this edit is `alive` and `hasBeenDone` is `true`.
`void`	`die()`	Sets `alive` to false.
`String`	`getPresentationName()`	This default implementation returns "".
`String`	`getRedoPresentationName()`	Retrieves the value from the defaults table with key `AbstractUndoableEdit.redoText` and returns that value followed by a space, followed by `getPresentationName`.
`String`	`getUndoPresentationName()`	Retrieves the value from the defaults table with key `AbstractUndoableEdit.undoText` and returns that value followed by a space, followed by `getPresentationName`.
`boolean`	`isSignificant()`	This default implementation returns true.
`boolean`	`replaceEdit(UndoableEdit anEdit)`	This default implementation returns false.
`String`	`toString()`	Returns a string that displays and identifies this object's properties.

Methods declared in class Object

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

Modifier and Type	Method	Description
`protected Object`	`clone()`	Creates and returns a copy of this object.
`boolean`	`equals(Object obj)`	Indicates whether some other object is "equal to" this one.
`protected void`	`finalize()`	Deprecated, for removal: This API element is subject to removal in a future version. Finalization is deprecated and subject to removal in a future release.
`final Class<?>`	`getClass()`	Returns the runtime class of this `Object`.
`int`	`hashCode()`	Returns a hash code value for this object.
`final void`	`notify()`	Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()`	Wakes up all threads that are waiting on this object's monitor.
`final void`	`wait()`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted.
`final void`	`wait(long timeoutMillis)`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis, int nanos)`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

Field Details

newAttributes

protected AttributeSet newAttributes

AttributeSet containing additional entries, must be non-mutable!

copy

protected AttributeSet copy

Copy of the AttributeSet the Element contained.

isReplacing

protected boolean isReplacing

true if all the attributes in the element were removed first.

element

protected Element element

Affected Element.

Constructor Details

AttributeUndoableEdit

public AttributeUndoableEdit(Element element, AttributeSet newAttributes, boolean isReplacing)

Constructs an AttributeUndoableEdit.

Parameters:: element - the element; newAttributes - the new attributes; isReplacing - true if all the attributes in the element were removed first.

Method Details

redo

public void redo() throws CannotRedoException

Redoes a change.

Specified by:

redo in interface UndoableEdit

Overrides:

redo in class AbstractUndoableEdit

Throws:

CannotRedoException - if the change cannot be redone

See Also:

undo

public void undo() throws CannotUndoException

Undoes a change.

Specified by:

undo in interface UndoableEdit

Overrides:

undo in class AbstractUndoableEdit

Throws:

CannotUndoException - if the change cannot be undone

See Also:

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