| 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.awt.BorderLayout;

import java.awt.GridLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.JCheckBox;

import javax.swing.JPanel;

import org.gvsig.gui.beans.slidertext.SliderTextContainer;

import org.gvsig.gui.beans.slidertext.listeners.SliderListener;

import com.iver.andami.PluginServices;

/**

 * Panel para los controles de brillo y contrase .

 * 

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

 */

public class EnhancedBrightnessContrastPanel extends JPanel implements ActionListener {

        private static final long serialVersionUID = -475762560608930500L;

        private InternalPanel     internalPanel    = null;

        private JCheckBox         active           = null;

        /**

         * Panel con los controles deslizantes de brillo y contraste

         * 

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

         */

        class InternalPanel extends JPanel {

                final private static long        serialVersionUID = 0;

                protected SliderTextContainer brightness = null;

                protected SliderTextContainer contrast = null;

                /**

                 * Contructor

                 */

                public InternalPanel() {

                        brightness = new SliderTextContainer(-255, 255, 0);

                        contrast = new SliderTextContainer(-255, 255, 0);

                        brightness.setBorder(PluginServices.getText(this, "brillo"));

                        contrast.setBorder(PluginServices.getText(this, "contraste"));

                        init();

                }

                private void init() {

                        this.setLayout(new GridLayout(2, 1));

                        this.add(brightness);

                        this.add(contrast);

                }

                /**

                 * Activa o desactiva el control

                 * @param enable true activa y false desactiva los controles del panel

                 */

                public void setControlEnabled(boolean enabled) {

                        brightness.setControlEnabled(enabled);

                        contrast.setControlEnabled(enabled);

                }

        }

        /**

         * Contructor

         */

        public EnhancedBrightnessContrastPanel() {

                super();

                internalPanel = new InternalPanel();

                initialize();

        }

        private void initialize() {

                setBorder(javax.swing.BorderFactory.createTitledBorder(null, PluginServices.getText(this, "brillo_y_contraste"), javax.swing.border.TitledBorder.DEFAULT_JUSTIFICATION, javax.swing.border.TitledBorder.DEFAULT_POSITION, null, null));

                setLayout(new BorderLayout());

                add(getActive(), BorderLayout.NORTH);

                add(internalPanel, BorderLayout.CENTER);

                getActive().addActionListener(this);

        }

        /**

         * Obtiene el check de activar

         * @return

         */

        public JCheckBox getActive() {

                if (active == null) {

                        active = new JCheckBox(PluginServices.getText(this, "activar"));

                        active.setSelected(false);

                        setControlEnabled(false);

                }

                return active;

        }

        /**

         * Activa o desactiva el control

         * @param enable true activa y false desactiva los controles del panel

         */

        public void setControlEnabled(boolean enabled){

                this.getActive().setSelected(enabled);

                internalPanel.setControlEnabled(enabled);

        }

        /**

         * Obtiene el valor del brillo que hay seleccionado en el control

         * @return double que representa el contraste seleccionado. Puede hacerse un casting a entero ya que 

         * no se consideran decimales

         */

        public double getBrightnessValue(){

                return internalPanel.brightness.getValue();

        }

        /**

         * Obtiene el valor del contraste que hay seleccionado en el control

         * @return double que representa el contraste seleccionado. Puede hacerse un casting a entero ya que 

         * no se consideran decimales

         */

        public double getContrastValue(){

                return internalPanel.contrast.getValue();

        }

        /**

         * Asigna el valor del brillo al control

         * @param value

         */

        public void setBrightnessValue(double value){

                internalPanel.brightness.setValue(value);

        }

        /**

         * Asigna el valor del contraste al control

         * @param value

         */

        public void setContrastValue(double value){

                internalPanel.contrast.setValue(value);

        }

        /**

         * A?ade un listener para el slider de brillo

         * @param l ChangeListener

         */

        public void addBrightnessValueChangedListener(SliderListener l){

                internalPanel.brightness.addValueChangedListener(l);

        }

        /**

         * A?ade un listener para el slider de contraste

         * @param l ChangeListener

         */

        public void addContrastValueChangedListener(SliderListener l){

                internalPanel.contrast.addValueChangedListener(l);

        }

        /**

         * Maneja eventos de activar y desactivar el panel

         */

        public void actionPerformed(ActionEvent e) {

                if (e.getSource() == getActive()) {

                        if (getActive().isSelected())

                                setControlEnabled(true);

                        else

                                setControlEnabled(false);

                }

        }

}