| 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.Color;

import javax.swing.JPanel;

import org.gvsig.gui.beans.checkslidertext.CheckColorSliderTextContainer;

import org.gvsig.gui.beans.doubleslider.DoubleSliderEvent;

import org.gvsig.gui.beans.doubleslider.DoubleSliderListener;

/**

 * Panel con los 3 campos para introducir listas de valores RGB. Este gestiona

 * los eventos de FocusListener para validar que los valores que se introducen

 * son correctos. Si el TextField pierde el foco y tiene un valor incorrecto

 * resetea el contenido. Los m?todos publicos getRangeXXX devuelven el intervalo

 * de valores en forma de array multidimensional de 2xN elementos. Cada pareja

 * de valores es un rango de color en ese valor de pixel. Un rango de valores

 * podria ser por ejemplo {{1,3},{15,30},{200, 255}}

 *

 * @author Nacho Brodin (brodin_ign@gva.es)

 */

public class TranspByPixelRGBInputPanel extends JPanel implements DoubleSliderListener {

        private static final long     serialVersionUID = 5858119425941331458L;

        private int[]                 rangeRed   = null;

        private int[]                 rangeGreen = null;

        private int[]                 rangeBlue  = null;

        CheckColorSliderTextContainer tRed       = null;

        CheckColorSliderTextContainer tGreen     = null;

        CheckColorSliderTextContainer tBlue      = null;

        CheckColorSliderTextContainer tAlpha     = null;

        /**

         * This is the default constructor

         */

        public TranspByPixelRGBInputPanel() {

                super();

                initialize();

                updateColors();

                validateValues();

        }

        /**

         * This method initializes this

         *

         * @return void

         */

        private void initialize() {

                this.setLayout(new javax.swing.BoxLayout(this, javax.swing.BoxLayout.Y_AXIS));

                this.add(getTRed());

                this.add(getTGreen());

                this.add(getTBlue());

                this.add(getTAlpha());

                this.getTBlue().addValueChangedListener(this);

                this.getTGreen().addValueChangedListener(this);

                this.getTRed().addValueChangedListener(this);

                this.getTAlpha().addValueChangedListener(this);

        }

        /**

         * This method initializes jTextField

         *

         * @return javax.swing.JTextField

         */

        public CheckColorSliderTextContainer getTRed() {

                if (tRed == null) {

                        tRed = new CheckColorSliderTextContainer(0, 255, 0, "R", true);

                }

                return tRed;

        }

        /**

         * This method initializes jTextField

         *

         * @return javax.swing.JTextField

         */

        public CheckColorSliderTextContainer getTAlpha() {

                if (tAlpha == null) {

                        tAlpha = new CheckColorSliderTextContainer(0, 255, 255, "A", false);

                        tAlpha.setColor2(this.getBackground(), true);

                }

                return tAlpha;

        }

        /**

         * This method initializes jTextField1

         *

         * @return javax.swing.JTextField

         */

        public CheckColorSliderTextContainer getTGreen() {

                if (tGreen == null) {

                        tGreen = new CheckColorSliderTextContainer(0, 255, 0, "G", true);

                }

                return tGreen;

        }

        /**

         * This method initializes jTextField2

         *

         * @return javax.swing.JTextField

         */

        public CheckColorSliderTextContainer getTBlue() {

                if (tBlue == null) {

                        tBlue = new CheckColorSliderTextContainer(0, 255, 0, "B", true);

                }

                return tBlue;

        }

        /**

         * Obtiene la lista de valores del campo Blue.

         *

         * @return array multidimensional con los intervalos

         */

        public int[] getRangeBlue() {

                return rangeBlue;

        }

        /**

         * Obtiene la lista de valores del campo Green.

         * @return array multidimensional con los intervalos

         */

        public int[] getRangeGreen() {

                return rangeGreen;

        }

        /**

         * Obtiene la lista de valores del campo Red.

         * @return array multidimensional con los intervalos

         */

        public int[] getRangeRed() {

                return rangeRed;

        }

        /**

         * Activa o desactiva el control

         * @param enable True activa el control y false lo desactiva

         */

        public void setControlEnabled(boolean enabled){

                getTRed().setEnabled(enabled);

                getTGreen().setEnabled(enabled);

                getTBlue().setEnabled(enabled);

                getTAlpha().setEnabled(enabled);

        }

        /**

         * Asigna el n?mero de bandas activas

         * @param n N?mero de bandas

         */

        public void setActiveBands(int n){

                this.getTRed().setEnabled(true);

                switch (n) {

                        case 1:

                                this.getTGreen().setEnabled(false);

                                this.getTBlue().setEnabled(false);

                                break;

                        case 2:

                                this.getTGreen().setEnabled(true);

                                this.getTBlue().setEnabled(false);

                                break;

                        case 3:

                                this.getTGreen().setEnabled(true);

                                this.getTBlue().setEnabled(true);

                                break;

                }

        }

        /**

         * Limpia el valor de las cajas de texto R, G y B

         */

        public void clear(){

                getTRed().setValue(0);

                getTGreen().setValue(0);

                getTBlue().setValue(0);

                getTRed().setControlEnabled(true);

                getTGreen().setControlEnabled(true);

                getTBlue().setControlEnabled(true);

        }

        /**

         * Actualiza los colores de los componentes de seleccion de color, el ultimo

         * parametro true o false es para que haga o no un refresco del componente, lo

         * hacemos solo una vez por componente para que consuma menos CPU

         */

        public void updateColors() {

                int r = tRed.getValue();

                int g = tGreen.getValue();

                int b = tBlue.getValue();

                if (!tRed.isChecked()) r = 0;

                if (!tGreen.isChecked()) g = 0;

                if (!tBlue.isChecked()) b = 0;

                tRed.setColor1(new Color(0, g, b), false);

                tRed.setColor2(new Color(255, g, b), true);

                tGreen.setColor1(new Color(r, 0, b), false);

                tGreen.setColor2(new Color(r, 255, b), true);

                tBlue.setColor1(new Color(r, g, 0), false);

                tBlue.setColor2(new Color(r, g, 255), true);

        }

        /**

         * En cada cambio hay que validar los datos y refrescarlos, este m?todo se

         * encarga de la validaci?n de datos y actualizar los rangos de selecci?n

         */

        public void validateValues() {

                rangeRed = new int[] {0, 255};

                rangeGreen = new int[] {0, 255};

                rangeBlue = new int[] {0, 255};

                if (getTRed().isChecked())

                        rangeRed[0] = rangeRed[1] = getTRed().getValue();

                if (getTGreen().isChecked())

                        rangeGreen[0] = rangeGreen[1] = getTGreen().getValue();

                if (getTBlue().isChecked())

                        rangeBlue[0] = rangeBlue[1] = getTBlue().getValue();

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.gui.beans.doubleslider.DoubleSliderListener#actionValueChanged(org.gvsig.gui.beans.doubleslider.DoubleSliderEvent)

         */

        public void actionValueChanged(DoubleSliderEvent e) {

                updateColors();

                validateValues();

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.gui.beans.doubleslider.DoubleSliderListener#actionValueDragged(org.gvsig.gui.beans.doubleslider.DoubleSliderEvent)

         */

        public void actionValueDragged(DoubleSliderEvent e) {

                updateColors();

                validateValues();

        }

}