Java Doc for CompoundUndoManager.java in  » IDE » DrJava » edu » rice » cs » drjava » model » definitions » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » IDE » DrJava » edu.rice.cs.drjava.model.definitions   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    javax.swing.undo.AbstractUndoableEdit       javax.swing.undo.CompoundEdit          javax.swing.undo.UndoManager             edu.rice.cs.drjava.model.definitions.CompoundUndoManager CompoundUndoManager public class CompoundUndoManager extends UndoManager (Code) Extended UndoManager with increased functionality. Can handle aggregating multiple edits into one for the purposes of undoing and redoing. It exposes editToBeUndone and editToBeRedone (under new names); they are protected methods in UndoManager. The public methods that involve composite state are synchronized, so this manager can be accessed outside of the event thread. The internal data structures _compoundEdits and _keys are not thread safe but they only accessed only by synchronized methods. The synchronization scheme (locking on this) follows UndoManager. version:    $Id: CompoundUndoManager.java 4255 2007-08-28 19:17:37Z mgricken $ Constructor Summary public   CompoundUndoManager(GlobalEventNotifier notifier)      Standard constructor. Method Summary public synchronized  boolean _compoundEditInProgress()      Returns whether or not a compound edit is in progress. public synchronized  boolean addEdit(UndoableEdit e)      Adds an edit. public synchronized  boolean canUndo()      public synchronized  void documentSaved()      Informs this undo manager that the document has been saved. public synchronized  void endCompoundEdit(int key)      Ends a compound edit. public synchronized  void endLastCompoundEdit()      Ends the last compound edit that was created. public synchronized  CompoundEdit getLastCompoundEdit()      We are getting the last Compound Edit entered into the list. public  UndoableEdit getNextRedo()      Gets the next redo. public  UndoableEdit getNextUndo()      Gets the next undo. public synchronized  String getUndoPresentationName()      public synchronized  boolean isModified()      Determines if the document is in the same undo state as it was when it was last saved. public synchronized  void redo()      Overrides redo so that any compound edit in progress is ended before the redo is performed. public synchronized  int startCompoundEdit()      Starts a compound edit. public  String toString()      public synchronized  void undo()      Undoes the last undoable edit, or compound edit created by the user. public synchronized  void undo(int key)      Overload for undo which allows the initiator of a CompoundEdit to abandon it. Constructor Detail CompoundUndoManager public CompoundUndoManager(GlobalEventNotifier notifier)(Code) Standard constructor. Method Detail _compoundEditInProgress public synchronized boolean _compoundEditInProgress()(Code) Returns whether or not a compound edit is in progress. true iff in progress addEdit public synchronized boolean addEdit(UndoableEdit e)(Code) Adds an edit. Checks whether or not the current edit is a compound edit. Parameters:   e - the edit to be added true if the add is successful, false otherwise canUndo public synchronized boolean canUndo()(Code) Returns true when a compound edit is in progress, or when there are valid stored undoable edits true iff undoing is possible documentSaved public synchronized void documentSaved()(Code) Informs this undo manager that the document has been saved. endCompoundEdit public synchronized void endCompoundEdit(int key)(Code) Ends a compound edit. Parameters:   key - the key that was returned by startCompoundEdit() endLastCompoundEdit public synchronized void endLastCompoundEdit()(Code) Ends the last compound edit that was created. Used when a compound edit is created by the _undoListener in DefinitionsPane and the key is not known in DefinitionsDocument. getLastCompoundEdit public synchronized CompoundEdit getLastCompoundEdit()(Code) We are getting the last Compound Edit entered into the list. This is for making a Compound edit for granular undo. getNextRedo public UndoableEdit getNextRedo()(Code) Gets the next redo. the next redo getNextUndo public UndoableEdit getNextUndo()(Code) Gets the next undo. the next undo getUndoPresentationName public synchronized String getUndoPresentationName()(Code) Returns the presentation name for this undo, or delegates to super if none is available the undo's presentation name isModified public synchronized boolean isModified()(Code) Determines if the document is in the same undo state as it was when it was last saved. true iff all changes have been undone since the last save redo public synchronized void redo()(Code) Overrides redo so that any compound edit in progress is ended before the redo is performed. startCompoundEdit public synchronized int startCompoundEdit()(Code) Starts a compound edit. the key for the compound edit toString public String toString()(Code) undo public synchronized void undo()(Code) Undoes the last undoable edit, or compound edit created by the user. undo public synchronized void undo(int key)(Code) Overload for undo which allows the initiator of a CompoundEdit to abandon it. WARNING: this has been used to date and has not been properly tested and very possibly may not work. Parameters:   key - the key returned by the last call to startCompoundEdit throws:   IllegalArgumentException - if the key is incorrect Methods inherited from javax.swing.undo.UndoManager public synchronized boolean addEdit(UndoableEdit anEdit)(Code)(Java Doc) public synchronized boolean canRedo()(Code)(Java Doc) public synchronized boolean canUndo()(Code)(Java Doc) public synchronized boolean canUndoOrRedo()(Code)(Java Doc) public synchronized void discardAllEdits()(Code)(Java Doc) protected UndoableEdit editToBeRedone()(Code)(Java Doc) protected UndoableEdit editToBeUndone()(Code)(Java Doc) public synchronized void end()(Code)(Java Doc) public synchronized int getLimit()(Code)(Java Doc) public synchronized String getRedoPresentationName()(Code)(Java Doc) public synchronized String getUndoOrRedoPresentationName()(Code)(Java Doc) public synchronized String getUndoPresentationName()(Code)(Java Doc) public synchronized void redo() throws CannotRedoException(Code)(Java Doc) protected void redoTo(UndoableEdit edit) throws CannotRedoException(Code)(Java Doc) public synchronized void setLimit(int l)(Code)(Java Doc) public String toString()(Code)(Java Doc) protected void trimEdits(int from, int to)(Code)(Java Doc) protected void trimForLimit()(Code)(Java Doc) public synchronized void undo() throws CannotUndoException(Code)(Java Doc) public synchronized void undoOrRedo() throws CannotRedoException, CannotUndoException(Code)(Java Doc) protected void undoTo(UndoableEdit edit) throws CannotUndoException(Code)(Java Doc) public void undoableEditHappened(UndoableEditEvent e)(Code)(Java Doc) Fields inherited from javax.swing.undo.CompoundEdit protected Vector<UndoableEdit> edits(Code)(Java Doc) Methods inherited from javax.swing.undo.CompoundEdit public boolean addEdit(UndoableEdit anEdit)(Code)(Java Doc) public boolean canRedo()(Code)(Java Doc) public boolean canUndo()(Code)(Java Doc) public void die()(Code)(Java Doc) public void end()(Code)(Java Doc) public String getPresentationName()(Code)(Java Doc) public String getRedoPresentationName()(Code)(Java Doc) public String getUndoPresentationName()(Code)(Java Doc) public boolean isInProgress()(Code)(Java Doc) public boolean isSignificant()(Code)(Java Doc) protected UndoableEdit lastEdit()(Code)(Java Doc) public void redo() throws CannotRedoException(Code)(Java Doc) public String toString()(Code)(Java Doc) public void undo() throws CannotUndoException(Code)(Java Doc) Fields inherited from javax.swing.undo.AbstractUndoableEdit final protected static String RedoName(Code)(Java Doc) final protected static String UndoName(Code)(Java Doc) Methods inherited from javax.swing.undo.AbstractUndoableEdit public boolean addEdit(UndoableEdit anEdit)(Code)(Java Doc) public boolean canRedo()(Code)(Java Doc) public boolean canUndo()(Code)(Java Doc) public void die()(Code)(Java Doc) public String getPresentationName()(Code)(Java Doc) public String getRedoPresentationName()(Code)(Java Doc) public String getUndoPresentationName()(Code)(Java Doc) public boolean isSignificant()(Code)(Java Doc) public void redo() throws CannotRedoException(Code)(Java Doc) public boolean replaceEdit(UndoableEdit anEdit)(Code)(Java Doc) public String toString()(Code)(Java Doc) public void undo() throws CannotUndoException(Code)(Java Doc) Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)