| gvSIG desktop 1

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

*

* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.

*

* This program is free software; you can redistribute it and/or

* modify it under the terms of the GNU General Public License

* as published by the Free Software Foundation; either version 2

* of the License, or (at your option) any later version.

*

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

* GNU General Public License for more details.

*

* You should have received a copy of the GNU General Public License

* along with this program; if not, write to the Free Software

* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

*

* For more information, contact:

*

*  Generalitat Valenciana

*   Conselleria d'Infraestructures i Transport

*   Av. Blasco Ib??ez, 50

*   46010 VALENCIA

*   SPAIN

*

*      +34 963862235

*   gvsig@gva.es

*      www.gvsig.gva.es

*

*    or

*

*   IVER T.I. S.A

*   Salamanca 50

*   46005 Valencia

*   Spain

*

*   +34 963163400

*   dac@iver.es

*/

package com.iver.cit.gvsig.fmap.edition.commands;

import java.util.ArrayList;

import com.iver.cit.gvsig.exceptions.commands.EditionCommandException;

public class CommandCollection extends AbstractCommand{

        ArrayList commands=new ArrayList();

        public boolean isEmpty() {

                return commands.size()==0;

        }

        /**

         * @throws EditionCommandException

         * @see com.iver.cit.gvsig.fmap.edition.Command#undo()

         */

        public void undo() throws EditionCommandException {

        for(int i=commands.size()-1;i>=0;i--){

                ((Command)commands.get(i)).undo();

        }

        }

        /**

         * @throws EditionCommandException

         * @see com.iver.cit.gvsig.fmap.edition.Command#redo()

         */

        public void redo() throws EditionCommandException {

                for (int i=0;i<commands.size();i++){

                        ((Command)commands.get(i)).redo();

                }

        }

        public void add(Command c){

                commands.add(c);

        }

        public String getType() {

                if (commands.size() == 0)

                        return null;

                ArrayList types=new ArrayList(3);

                for (int i=0;i<commands.size();i++) {

                        String type=((Command)commands.get(i)).getType();

                        if (!types.contains(type))

                                types.add(type);

                }

                String type="";

                type=(String)types.get(0);

                for (int i=1;i<types.size();i++) {

                        type=type+"-"+(String)types.get(i);

                }

                return type;

        }

}