Application: gvSIG desktop

/*

 * Cresques Mapping Suite. Graphic Library for constructing mapping applications.

 *

 * Copyright (C) 2004-5.

 *

 * 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:

 *

 * cresques@gmail.com

 */

package org.cresques.ui.filter;

import java.awt.BorderLayout;

import java.awt.GridBagConstraints;

import java.awt.GridBagLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.FocusEvent;

import java.awt.event.FocusListener;

import javax.swing.JCheckBox;

import javax.swing.JPanel;

import javax.swing.JSlider;

import javax.swing.JTextField;

import javax.swing.event.ChangeEvent;

import javax.swing.event.ChangeListener;

import org.cresques.ui.raster.IResize;

import org.cresques.ui.raster.RGBInputPanel;

/**

 * Dialogo para asignar la transparencia por pixel y global al raster.

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

 */

public class RasterTransparencyPanel extends JPanel implements ActionListener, FocusListener, ChangeListener, IResize{

    final private static long serialVersionUID = -3370601314380922368L;

    /**

     * Variables para la asignaci?n de tama?o de los componentes del panel.

     */

    private int                                                wComp = 445, hComp = 239;

    private int                                                wPixel = wComp - 15, hPixel = hComp - 59;

    private int                                                wList = wPixel - 20, hList = hPixel - 60;

    private int                                                wGeneral = wPixel, hGeneral = 55;

    private int                                                wSlider = wGeneral - 160;

    /**

     * Nombre del panel

     */

    private String                                                 nom = "Transparencia";

    FilterRasterDialogPanel                         parent = null;

    /**

     * N?mero de bandas del raster

     */

    public int                                                         nBands = 3;

    private JPanel                                                 jPanel1 = null;

    private JCheckBox                                         cbTransparencia = null;

    /**

     * Variable p?blica para la traducci?n

     */

    public JPanel                                                 pGeneralTrans = null;

    private JCheckBox                                         cbOpacidad = null;

    private JSlider                                         slOpacidad = null;

    private JTextField                                         tOpacidad = null;

        private TransparencyByPixelPanel         pTranspByPixel = null;

        private JPanel                                                 pTransparencyByPixel = null;

    /**

     * Constructor. Asigna la variable panel que contiene este

     * @param parent FilterRasterDialogPanel

     */

    public RasterTransparencyPanel(FilterRasterDialogPanel parent) {

        this.parent = parent;

        initialize();

    }

    /**

     * This method initializes this

     *

     * @return void

     */

    private void initialize() {

        GridBagConstraints gridBagConstraints4 = new GridBagConstraints();

        gridBagConstraints4.insets = new java.awt.Insets(0,0,0,0);

        gridBagConstraints4.gridx = 0;

        gridBagConstraints4.gridy = 1;

        gridBagConstraints4.gridwidth = 1;

        GridBagConstraints gridBagConstraints1 = new GridBagConstraints();

        gridBagConstraints1.gridx = 0;

        gridBagConstraints1.gridy = 0;

        this.setLayout(new GridBagLayout());

        this.setBounds(0, 0, wComp, hComp);

        this.setPreferredSize(new java.awt.Dimension(wComp, hComp));

        this.add(getPTransparencyByPixel(), gridBagConstraints1);

        this.add(getOpacityPanel(), gridBagConstraints4);

        initControls();

        //this.setComponentSize(wComp, hComp);

    }

    /**

     * Obtiene el nombre del panel

     * @return Cadena con el nombre del panel

     */

    public String getName(){

            return this.nom;

    }

    /**

     * Asigna el n?mero de bandas de la imagen

     * @param nBands

     */

    public void setBands(int nBands) {

        this.nBands = nBands;

    }

    /**

     * Inicializa controles a sus valores por defecto

     */

    public void initControls() {

        this.getOpacityText().setText("100");

        this.setActiveOpacityControl(false);

        this.setActiveTransparencyControl(false);

    }

    /**

     * This method initializes jPanel1

     *

     * @return javax.swing.JPanel

     */

    private JPanel getJPanel1() {

        if (jPanel1 == null) {

            jPanel1 = new JPanel();

            jPanel1.setLayout(new BorderLayout());

            jPanel1.setPreferredSize(new java.awt.Dimension(415,25));

            jPanel1.setBorder(javax.swing.BorderFactory.createEmptyBorder(0,0,0,0));

            jPanel1.add(getTransparencyCheck(), java.awt.BorderLayout.NORTH);

        }

        return jPanel1;

    }

    /**

     * This method initializes jCheckBox

     *

     * @return javax.swing.JCheckBox

     */

    public JCheckBox getTransparencyCheck() {

        if (cbTransparencia == null) {

            cbTransparencia = new JCheckBox();

            cbTransparencia.setText("Activar");

            cbTransparencia.addActionListener(this);

        }

        return cbTransparencia;

    }

    /**

     * This method initializes jPanel4

     *

     * @return javax.swing.JPanel

     */

    public JPanel getOpacityPanel() {

        if (pGeneralTrans == null) {

                pGeneralTrans = new JPanel();

                pGeneralTrans.setBorder(javax.swing.BorderFactory.createTitledBorder(null, "Opacidad", javax.swing.border.TitledBorder.DEFAULT_JUSTIFICATION, javax.swing.border.TitledBorder.DEFAULT_POSITION, null, null));

                pGeneralTrans.setPreferredSize(new java.awt.Dimension(wGeneral,hGeneral));

                pGeneralTrans.add(getOpacityCheck(), null);

                pGeneralTrans.add(getOpacitySlider(), null);

                pGeneralTrans.add(getOpacityText(), null);

        }

        return pGeneralTrans;

    }

    /**

     * This method initializes jCheckBox1

     *

     * @return javax.swing.JCheckBox

     */

    public JCheckBox getOpacityCheck() {

        if (cbOpacidad == null) {

            cbOpacidad = new JCheckBox();

            cbOpacidad.setText("Activar");

            cbOpacidad.addActionListener(this);

            cbOpacidad.addFocusListener(this);

        }

        return cbOpacidad;

    }

    /**

     * This method initializes jSlider

     *

     * @return javax.swing.JSlider

     */

    public JSlider getOpacitySlider() {

        if (slOpacidad == null) {

            slOpacidad = new JSlider();

            slOpacidad.setPreferredSize(new java.awt.Dimension(wSlider, 16));

            slOpacidad.addChangeListener(this);

        }

        return slOpacidad;

    }

    /**

     * This method initializes jTextField3

     *

     * @return javax.swing.JTextField

     */

    public JTextField getOpacityText() {

        if (tOpacidad == null) {

            tOpacidad = new JTextField();

            tOpacidad.setPreferredSize(new java.awt.Dimension(30, 19));

            tOpacidad.addActionListener(this);

        }

        return tOpacidad;

    }

    /**

     * Activa/Desactiva los controles de opacidad

     * @param active

     */

    public void setActiveOpacityControl(boolean active) {

        this.getOpacityCheck().setSelected(active);

        this.getOpacitySlider().setEnabled(active);

        this.getOpacityText().setEnabled(active);

    }

    /**

     * Activa/Desactiva los controles de transparencia

     * @param active

     */

    public void setActiveTransparencyControl(boolean active) {

        this.getTransparencyCheck().setSelected(active);

        RGBInputPanel rgbPanel = this.getPTranspByPixel().getPRGBInput();

        rgbPanel.getTRed().setEnabled(active);

        if (parent.nbands == 2) {

                rgbPanel.getTGreen().setEnabled(active);

                rgbPanel.getTBlue().setEnabled(false);

        }

        if (parent.nbands == 3) {

                rgbPanel.getTGreen().setEnabled(active);

                rgbPanel.getTBlue().setEnabled(active);

        }

    }

    /**

     * Asigna el valor de opacidad a los controles de la ventana

     * para que cuando esta se abra tenga los valores seleccionados en la

     * imagen.

     * @param alpha

     */

    public void setOpacity(int alpha) {

        int opacityPercent = (int) ((alpha * 100) / 255);

        this.getOpacityText().setText(String.valueOf(opacityPercent));

        this.getOpacitySlider().setValue(opacityPercent);

        this.setActiveOpacityControl(true);

        if (opacityPercent == 100) {

            this.setActiveOpacityControl(false);

        }

    }

        /**

         * This method initializes jPanel2        

         *         

         * @return javax.swing.JPanel        

         */

        public TransparencyByPixelPanel getPTranspByPixel() {

                if (pTranspByPixel == null) {

                        pTranspByPixel = new TransparencyByPixelPanel();

                        pTranspByPixel.setPreferredSize(new java.awt.Dimension(wList,hList));

                        pTranspByPixel.setBorder(javax.swing.BorderFactory.createEmptyBorder(0,0,0,0));

                        pTranspByPixel.setControlEnabled(false);

                }

                return pTranspByPixel;

        }

        /**

         * This method initializes jPanel2        

         *         

         * @return javax.swing.JPanel        

         */

        public JPanel getPTransparencyByPixel() {

                if (pTransparencyByPixel == null) {

                        GridBagConstraints gridBagConstraints = new GridBagConstraints();

                        gridBagConstraints.gridx = 0;

                        gridBagConstraints.gridy = 1;

                        GridBagConstraints gridBagConstraints2 = new GridBagConstraints();

                        gridBagConstraints2.anchor = GridBagConstraints.WEST;

                        gridBagConstraints2.insets = new java.awt.Insets(0,0,0,0);

                        gridBagConstraints2.gridheight = 1;

                        gridBagConstraints2.gridwidth = 1;

                        gridBagConstraints2.gridx = 0;

                        gridBagConstraints2.gridy = 0;

                        gridBagConstraints2.ipady = 0;

                        gridBagConstraints2.fill = GridBagConstraints.NONE;

                        pTransparencyByPixel = new JPanel();

                        pTransparencyByPixel.setLayout(new GridBagLayout());

                        pTransparencyByPixel.setBorder(javax.swing.BorderFactory.createTitledBorder(null, "Transparencia por pixel", javax.swing.border.TitledBorder.DEFAULT_JUSTIFICATION, javax.swing.border.TitledBorder.DEFAULT_POSITION, null, null));

                        pTransparencyByPixel.setPreferredSize(new java.awt.Dimension(wPixel,hPixel));

                        pTransparencyByPixel.add(getJPanel1(), gridBagConstraints2);

                        pTransparencyByPixel.add(getPTranspByPixel(), gridBagConstraints);

                }

                return pTransparencyByPixel;

        }

        /**

         * Ajusta el tama?o de todos los componentes a partir del tama?o

         * introducido para el panel.

         * @param w

         * @param h

         */

        public void setComponentSize(int w, int h){

                wComp = w; hComp = h;

                wPixel = wComp - 15; hPixel = hComp - 59;

                wList = wPixel - 20; hList = hPixel - 60;

                wGeneral = wComp - 15; hGeneral = 55; 

                wSlider = wGeneral - 160;

                this.setPreferredSize(new java.awt.Dimension(wComp, hComp));

                pTransparencyByPixel.setPreferredSize(new java.awt.Dimension(wPixel,hPixel));

                pGeneralTrans.setPreferredSize(new java.awt.Dimension(wGeneral,hGeneral));

                pTranspByPixel.setPreferredSize(new java.awt.Dimension(wList,hList));

                pTranspByPixel.setComponentSize(wList, hList);

                slOpacidad.setPreferredSize(new java.awt.Dimension(wSlider, 16));

        }

        /**

     * Eventos sobre TextField y CheckBox. Controla eventos de checkbox de opacidad, transparencia,

     * recorte de colas y los textfield de opacidad, valores de transparencia por banda y

     * porcentaje de recorte.

     */

        public void actionPerformed(ActionEvent e) {

                //Evento sobre el checkbox de opacidad

                if (e.getSource().equals(getOpacityCheck())) {

                   //Check de opacidad activado -> Activar controles de opacidad

                   if (getOpacityCheck().isSelected()) {

                       getOpacitySlider().setEnabled(true);

                       getOpacityText().setEnabled(true);

                   } else {

                       getOpacitySlider().setEnabled(false);

                       getOpacityText().setEnabled(false);

                   }

                }

                //Evento sobre el checkbox de transparencia

            if (e.getSource().equals(getTransparencyCheck())) {

                   //Check de opacidad activado -> Activar controles de opacidad

                   if (getTransparencyCheck().isSelected()) {

                           getPTranspByPixel().setControlEnabled(true);

                           getPTranspByPixel().getPRGBInput().setActiveBands(nBands);

                   }else

                           getPTranspByPixel().setControlEnabled(false);

            }

            //Evento sobre el textfield de opacidad

        if (e.getSource().equals(getOpacityText()))

            checkOpacityText();

        }

    public void focusGained(FocusEvent e) {

        //pTrans.updateTextBox();

    }

    public void focusLost(FocusEvent e) {

        checkOpacityText();

    }

    /*

    *

    */

   public void stateChanged(ChangeEvent e) {

       //Ponemos el valor del texto de la opacidad de pendiendo de la posici?n del Slider

       if (e.getSource().equals(getOpacitySlider())) {

           getOpacityText().setText(

                           String.valueOf(getOpacitySlider().getValue()));

       }        

   }

        /**

     * Controla que si el formato introducido en el textfield

     * de opacidad es numerico se actualiza la posici?n del

     * slider.

     */

    private void checkOpacityText() {

        String op = getOpacityText().getText();

        int value = 0;

        try {

            if (!op.equals("")) {

                value = Integer.parseInt(op);

            }

            getOpacitySlider().setValue(value);

        } catch (NumberFormatException exc) {

            System.err.println("Formato no numerico");

            getOpacityText().setText("100");

            getOpacitySlider().setValue(100);

        }

    }

} //  @jve:decl-index=0:visual-constraint="36,15"