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<  * @(#)UngroupCommand.java 5.2
---
>  * @(#)UngroupCommand.java
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>  * Project:		JHotdraw - a GUI framework for technical drawings
>  *				http://www.jhotdraw.org
>  *				http://jhotdraw.sourceforge.net
>  * Copyright:	© by the original author(s) and all contributors
>  * License:		Lesser GNU Public License (LGPL)
>  *				http://www.opensource.org/licenses/lgpl-license.html
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> import CH.ifa.draw.framework.*;
> import CH.ifa.draw.standard.*;
> import CH.ifa.draw.util.UndoableAdapter;
> import CH.ifa.draw.util.Undoable;
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< import CH.ifa.draw.framework.*;
< import CH.ifa.draw.util.Command;
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>  *
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>  *
>  * @version <$CURRENT_VERSION$>
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< public  class UngroupCommand extends Command {
< 
<     private DrawingView fView;
---
> public  class UngroupCommand extends AbstractCommand {
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<         super(name);
<         fView = view;
---
>         super(name, view);
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<         FigureEnumeration selection = fView.selectionElements();
<         fView.clearSelection();
---
>     	setUndoActivity(createUndoActivity());
>     	// selection of group figures
>         getUndoActivity().setAffectedFigures(view().selectionElements());
>         view().clearSelection();
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<         Vector parts = new Vector();
<         while (selection.hasMoreElements()) {
<             Figure selected = selection.nextFigure();
<             Figure group = fView.drawing().orphan(selected);
<             FigureEnumeration k = group.decompose();
<             while (k.hasMoreElements())
<                 fView.addToSelection(fView.add(k.nextFigure()));
<         }
<         fView.checkDamage();
---
> 		((UngroupCommand.UndoActivity)getUndoActivity()).ungroupFigures();
>         view().checkDamage();
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<         return fView.selectionCount() > 0;
---
>     	FigureEnumeration fe = view().selectionElements();
>     	while (fe.hasMoreElements()) {
>     		Figure currentFigure = fe.nextFigure();
>     		if (currentFigure instanceof DecoratorFigure) {
>     			currentFigure = ((DecoratorFigure)currentFigure).getDecoratedFigure();
>     		}
>     		
>     		if (!(currentFigure instanceof GroupFigure)) {
>     			return false;
>     		}
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>     	return true;
> //        return view().selectionCount() > 0;
> 
>     }
> 
> 	/**
> 	 * Factory method for undo activity
> 	 */
> 	protected Undoable createUndoActivity() {
> 		return new UngroupCommand.UndoActivity(view());
> 	}
> 
> 	public static class UndoActivity extends UndoableAdapter {
> 		public UndoActivity(DrawingView newDrawingView) {
> 			super(newDrawingView);
> 			setUndoable(true);
> 			setRedoable(true);
> 		}
> 
> 		public boolean undo() {
> 			if (!super.undo()) {
> 				return false;
> 			}
> 		    getDrawingView().clearSelection();
> 		    
> 		    FigureEnumeration groupFigures = getAffectedFigures();
> 		    while (groupFigures.hasMoreElements()) {
> 		    	Figure groupFigure = groupFigures.nextFigure();
> 		    	// orphan individual figures from the group
> 		    	getDrawingView().drawing().orphanAll(groupFigure.figures());
> 		    	
> 		        Figure figure = getDrawingView().drawing().add(groupFigure);
> 		        getDrawingView().addToSelection(figure);
> 			}
> 			
> 			return true;
> 		}
> 	
> 		public boolean redo() {
> 			// do not call execute directly as the selection might has changed
> 			if (isRedoable()) {
> 	    	    getDrawingView().drawing().orphanAll(getAffectedFigures());
> 		        getDrawingView().clearSelection();
> 		        ungroupFigures();
> 		        return true;
> 			}
> 			return false;
> 		}
> 
> 		protected void ungroupFigures() {
> 			FigureEnumeration fe = getAffectedFigures();
> 	        if (fe.hasMoreElements()) {
> 		        while (fe.hasMoreElements()) {
> 		            Figure selected = fe.nextFigure();
> 		            Figure group = getDrawingView().drawing().orphan(selected);
> 		
> 					getDrawingView().drawing().addAll(group.figures());
> 		            getDrawingView().addToSelectionAll(group.figures());
> 		        }            
> 	        }
> 		}
> 	}