Application: gvSIG desktop

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

*

* Copyright (C) 2005 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.andami.plugins;

/**

 * This class extends the functionality of Extension class to let the programmer

 * set an extension visible or not on-the-fly.

 *

 * @autor Jaume Dominguez Faus - jaume.dominguez@iver.es

 */

public class ExtensionDecorator implements HiddableExtension{

        public static final int INACTIVE = 0;

        public static final int ALWAYS_VISIBLE = 1;

        public static final int ALWAYS_INVISIBLE = 2;

        int  alwaysVisible;

        IExtension extension;

        public ExtensionDecorator(IExtension e, int visibilityControl){

                setExtension(e);

                setVisibility(visibilityControl);

        }

        public void setExtension(IExtension e) {

                this.extension = e;

        }

        public void setVisibility(int state){

                this.alwaysVisible = state;

        }

        public int getVisibility(){

                return alwaysVisible;

        }

        public IExtension getExtension(){

                return extension;

        }

        public void initialize() {

                extension.initialize();

        }

        public void terminate(){

                //TODO

        }

        public void execute(String actionCommand) {

                extension.execute(actionCommand);

        }

        public boolean isEnabled() {

                return extension.isEnabled();

        }

        public boolean isVisible() {

                if (alwaysVisible == INACTIVE)

                        return extension.isVisible();

                else if (alwaysVisible == ALWAYS_VISIBLE) return true;

                else return false;

        }

        public void postInitialize() {

                // TODO

        }

        public boolean isEnabled(IExtension extension) {                

                return this.extension.isEnabled(extension);

        }

        public boolean isVisible(IExtension extension) {

                return this.extension.isVisible(extension);

        }

}