| gvSIG desktop 1

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

 *

 * Copyright (C) 2007 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.

 */

package org.gvsig.rastertools.properties.panels;

import java.util.ArrayList;

import org.gvsig.raster.grid.GridTransparency;

import org.gvsig.raster.util.TransparencyRange;

/**

 * 

 * Clase que hace de interfaz entre los objetos que contienen la informaci?n de 

 * transparencia y el panel. 

 *  

 * @author Nacho Brodin (nachobrodin@gmail.com)

 */

public class TransparencyControl{

    private GridTransparency transparency = null;

    private TransparencyPanel tPanel = null;

    /**

     * Constructor

     * @param tp

     */

    public TransparencyControl(TransparencyPanel tp){

            this.tPanel = tp;

    }

    public void setTransparencyObject(GridTransparency t){

            this.transparency = t;

            setValuesFromGridTransparencyToPanel();

    }

    /**

     * Carga los valores del panel desde el objeto con la transparencia

     */

    private void setValuesFromGridTransparencyToPanel(){

            //Asignamos la opacidad al panel

            if(transparency.getOpacity() != 255){

                    tPanel.getOpacityPanel().setControlEnabled(true);

                    tPanel.getOpacityPanel().setValue((int)(transparency.getOpacity() * 100) / 255);

            }else{

                    tPanel.getOpacityPanel().setControlEnabled(false);

                    tPanel.getOpacityPanel().setValue(100);

            }

            //Asignamos los rangos de transparencia al panel

            if(transparency.getTransparencyRange().size() > 0){

                    tPanel.getPTranspByPixel().clear();

                        tPanel.getPTranspByPixel().setControlEnabled(true);

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

                            TransparencyRange range = (TransparencyRange)transparency.getTransparencyRange().get(i);

                            tPanel.getPTranspByPixel().addStringElement(range);

                    }

            }else{

                    tPanel.getPTranspByPixel().clear();

                    tPanel.getPTranspByPixel().setControlEnabled(false);

            }

    }

    /**

     * Carga los valores del objeto transparencia desde el panel

     */

    private void setValuesFromPanelToGridTransparency(){

            //Asignamos la opacidad al objeto

            if(tPanel.getOpacityPanel().getCheck().isSelected()){

                    transparency.setOpacity((int)Math.round((tPanel.getOpacityPanel().getValue() * 255) / 100));

            }else

                    transparency.setOpacity(255);

            //Asignamos los rangos de transparencia al objeto

            if(tPanel.getPTranspByPixel().getActiveCheck().isSelected()){

                    transparency.clearListOfTransparencyRange();

                    ArrayList entries = tPanel.getPTranspByPixel().getEntries();        

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

                                transparency.setTransparencyRange((TransparencyRange)entries.get(i));

            }else

                    transparency.clearListOfTransparencyRange();

            transparency.activeTransparency();

            //Redibujamos

            if(tPanel.getLayer() != null)

                    tPanel.getLayer().getMapContext().invalidate();

    }

    /**

         * Acciones a ejecutar cuando se acepta

         */

        public void accept(){

                setValuesFromPanelToGridTransparency();        

        }

        /**

         * Acciones a ejecutar cuando se aplica

         */

        public void apply(){

                setValuesFromPanelToGridTransparency();

        }

        /**

         * Acciones a ejecutar cuando se cancela

         */

        public void cancel(){

        }

}