org.jhotdraw.undo

Class CompositeEdit

java.lang.Object

javax.swing.undo.AbstractUndoableEdit

javax.swing.undo.CompoundEdit

org.jhotdraw.undo.CompositeEdit

All Implemented Interfaces:

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

Direct Known Subclasses:

CompositeFigureEdit

public class CompositeEdit
extends javax.swing.undo.CompoundEdit

This is basically the same like javax.swing.undo.CompoundEdit but it has a slightly different behaviour: The compound edit ends, when it is added to itself. This way it can be fired two times to an UndoManager: The first time, when a sequence of compoundable edits starts, end the last time, when the sequence is over.

For example:

 // fire CompositeEdit at start of sequence
 CompositeEdit ce = new CompositeEdit();
 fireUndoableEditEvent(ce);

 ...fire edits which shall compounded here...

 // fire CompositeEdit at end of sequence again, to end it.
 fireUndoableEditEvent(ce);
 

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
CompositeEdit() Creates a new CompositeEdit which uses CompoundEdit#getPresentationName() and is significant..
CompositeEdit(boolean isSignificant) Creates a new CompositeEdit which uses the specified significance.
CompositeEdit(java.lang.String presentationName) Creates a new CompositeEdit which uses the specified presentation name.
CompositeEdit(java.lang.String presentationName, boolean isSignificant) Creates a new CompositeEdit which uses the given presentation name and significance.

Method Summary

Modifier and Type	Method and Description
boolean	addEdit(javax.swing.undo.UndoableEdit anEdit) If this edit is inProgress, accepts anEdit and returns true.
java.lang.String	getPresentationName() Returns the presentation name.
java.lang.String	getRedoPresentationName() Returns the redo presentation name.
java.lang.String	getUndoPresentationName() Returns the undo presentation name.
boolean	isSignificant() Returns false if this edit is insignificant - for example one that maintains the user's selection, but does not change any model state.
void	setSignificant(boolean newValue)
void	setVerbose(boolean b)

Methods inherited from class javax.swing.undo.CompoundEdit

canRedo, canUndo, die, end, isInProgress, redo, toString, undo

Methods inherited from class javax.swing.undo.AbstractUndoableEdit

replaceEdit

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

CompositeEdit

public CompositeEdit()

Creates a new CompositeEdit which uses CompoundEdit#getPresentationName() and is significant..

See Also:

CompoundEdit.getPresentationName()

CompositeEdit

public CompositeEdit(boolean isSignificant)

Creates a new CompositeEdit which uses the specified significance.

The presentation name is used from CompoundEdit#getPresentationName().

See Also:

CompoundEdit.getPresentationName()

CompositeEdit

public CompositeEdit(java.lang.String presentationName)

Creates a new CompositeEdit which uses the specified presentation name.

If the presentation name is null, then CompoundEdit.getPresentatioName is used.

See Also:

CompoundEdit.getPresentationName()

CompositeEdit

public CompositeEdit(java.lang.String presentationName,
                     boolean isSignificant)

Creates a new CompositeEdit which uses the given presentation name and significance.

If the presentation name is null, then CompoundEdit.getPresentatioName is used.

See Also:

CompoundEdit.getPresentationName()

Method Detail

setVerbose

public void setVerbose(boolean b)

getPresentationName

public java.lang.String getPresentationName()

Returns the presentation name. If the presentation name is null, then CompoundEdit.getPresentatioName is returned.

Specified by:

getPresentationName in interface javax.swing.undo.UndoableEdit

Overrides:

getPresentationName in class javax.swing.undo.CompoundEdit

See Also:

CompoundEdit.getPresentationName()

getUndoPresentationName

public java.lang.String getUndoPresentationName()

Returns the undo presentation name. If the presentation name is null, then CompoundEdit.getUndoPresentationName is returned.

Specified by:

getUndoPresentationName in interface javax.swing.undo.UndoableEdit

Overrides:

getUndoPresentationName in class javax.swing.undo.CompoundEdit

See Also:

CompoundEdit.getUndoPresentationName()

getRedoPresentationName

public java.lang.String getRedoPresentationName()

Returns the redo presentation name. If the presentation name is null, then CompoundEdit.getRedoPresentationName is returned.

Specified by:

getRedoPresentationName in interface javax.swing.undo.UndoableEdit

Overrides:

getRedoPresentationName in class javax.swing.undo.CompoundEdit

See Also:

CompoundEdit.getRedoPresentationName()

addEdit

public boolean addEdit(javax.swing.undo.UndoableEdit anEdit)

If this edit is inProgress, accepts anEdit and returns true.

The last edit added to this CompositeEdit is given a chance to addEdit(anEdit). If it refuses (returns false), anEdit is given a chance to replaceEdit the last edit. If anEdit returns false here, it is added to edits.

If the CompositeEdit is added to itself, then method end() is called, and true is returned.

Specified by:

addEdit in interface javax.swing.undo.UndoableEdit

Overrides:

addEdit in class javax.swing.undo.CompoundEdit

isSignificant

public boolean isSignificant()

Returns false if this edit is insignificant - for example one that maintains the user's selection, but does not change any model state.

Specified by:

isSignificant in interface javax.swing.undo.UndoableEdit

Overrides:

isSignificant in class javax.swing.undo.CompoundEdit

setSignificant

public void setSignificant(boolean newValue)