DuplicateCommand.java

/*
 * @(#)DuplicateCommand.java
 *
 * Project:		JHotdraw - a GUI framework for technical drawings
 *				http://www.jhotdraw.org
 *				http://jhotdraw.sourceforge.net
 * Copyright:	(c) by the original author(s) and all contributors
 * License:		Lesser GNU Public License (LGPL)
 *				http://www.opensource.org/licenses/lgpl-license.html
 */

package org.jhotdraw.standard;

import org.jhotdraw.framework.*;
import org.jhotdraw.util.*;

/**
 * Duplicate the selection and select the duplicates.
 *
 * @version <$CURRENT_VERSION$>
 */
public class DuplicateCommand extends FigureTransferCommand {

   /**
	* Constructs a duplicate command.
	* @param name the command name
	 * @param newDrawingEditor the DrawingEditor which manages the views
	*/
	public DuplicateCommand(String name, DrawingEditor newDrawingEditor) {
		super(name, newDrawingEditor);
	}

	public void execute() {
		super.execute();
		setUndoActivity(createUndoActivity());
		FigureSelection selection = view().getFigureSelection();

		// create duplicate figure(s)
		FigureEnumeration figures = (FigureEnumeration)selection.getData(StandardFigureSelection.TYPE);
		getUndoActivity().setAffectedFigures(figures);

		view().clearSelection();
		getUndoActivity().setAffectedFigures(
			insertFigures(getUndoActivity().getAffectedFigures(), 10, 10));
		view().checkDamage();
	}

	protected boolean isExecutableWithView() {
		return view().selectionCount() > 0;
	}

	/**
	 * Factory method for undo activity
	 */
	protected Undoable createUndoActivity() {
		return new PasteCommand.UndoActivity(view());
	}
}