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.raster;

import java.awt.Dimension;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.FocusEvent;

import java.awt.event.FocusListener;

import java.awt.event.KeyEvent;

import java.awt.event.KeyListener;

import java.awt.event.MouseEvent;

import java.awt.event.MouseListener;

import java.io.File;

import javax.swing.JFileChooser;

import javax.swing.JPanel;

import javax.swing.filechooser.FileFilter;

/**

 * Panel encargado de manejar los eventos del los controles de Salvar a Raste

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

 */

public class SaveSetupPanel extends JPanel implements ActionListener,

                                                      MouseListener,

                                                      FocusListener,

                                                      KeyListener {

    final private static long serialVersionUID = -3370601314380922368L;

    private DataInputSaveRaster saveRaster = null;

    private SaveRasterDialogPanel dialogPanel = null;

    private String fName = null;

    /**

     * This method initializes

     *

     */

    public SaveSetupPanel() {

        super();

        initialize();

    }

    /**

     * This method initializes this

     *

     * @return void

     */

    void initialize() {

        this.setPreferredSize(new Dimension(350, 210)); //AnchoxAlto  panel interior

        this.setBounds(0, 0, 300, 250);

        this.setLayout(null);

        this.add(getSaveParameters(), null);

        //A?adimos gesti?n de eventos        

        saveRaster.getJComboBox().addActionListener(this);

        saveRaster.getTescala().addActionListener(this);

        saveRaster.getTescala().addMouseListener(this);

        saveRaster.getTescala().addFocusListener(this);

        saveRaster.getTinf_derX().addActionListener(this);

        saveRaster.getTinf_derY().addActionListener(this);

        saveRaster.getTsup_izqX().addActionListener(this);

        saveRaster.getTsup_izqY().addActionListener(this);

        saveRaster.getTinf_derX().addMouseListener(this);

        saveRaster.getTinf_derY().addMouseListener(this);

        saveRaster.getTsup_izqX().addMouseListener(this);

        saveRaster.getTsup_izqY().addMouseListener(this);

        saveRaster.getTinf_derX().addFocusListener(this);

        saveRaster.getTinf_derY().addFocusListener(this);

        saveRaster.getTsup_izqX().addFocusListener(this);

        saveRaster.getTsup_izqY().addFocusListener(this);

        saveRaster.getBseleccion().addActionListener(this);

        saveRaster.getBPropiedades().addActionListener(this);

        saveRaster.getTescala().addKeyListener(this);

        saveRaster.getJComboBox().addKeyListener(this);

    }

    /**

     * Asigna un valor al panel padre

     * @param dialogPanel

     */

    public void setDialogPanel(SaveRasterDialogPanel dialogPanel) {

        this.dialogPanel = dialogPanel;

    }

    /**

     * Obtiene el Panel de Controles interior

     * @return

     */

    public DataInputSaveRaster getSaveParameters() {

        if (saveRaster == null) {

            saveRaster = new DataInputSaveRaster();

            //saveRaster.setBounds(9, 9, 328, 75);

        }

        return saveRaster;

    }

    /**

     * Calcula el tama?o en pixeles de la imagen resultante. 

     */

    private void calcSizeImage(){

            if(!saveRaster.getProjection().isProjected())

                    calcSizeImageGeodesicas();

            else

                    calcSizeImageUTM();

    }

    /**

     * Calcula el tama?o en pixeles cuando la imagen est? en coordenadas 

     * geogr?ficas. 

     *

     */

    public void calcSizeImageGeodesicas(){

            double lrX = Double.parseDouble(saveRaster.getTinf_derX().getText());

            double ulX = Double.parseDouble(saveRaster.getTsup_izqX().getText());

            //Nos aseguramos de que la escala sea un entero. Si no lo es ponemos un 0

        try {

            Integer.parseInt(saveRaster.getTescala().getText());

        } catch (NumberFormatException e) {

            saveRaster.getTescala().setText("0");

        }

            double scale = saveRaster.getProjection().getScale(ulX, lrX, 

                            saveRaster.getWidthInPixelsGeodesicas(), 

                            Integer.parseInt((String)saveRaster.getJComboBox().getSelectedItem()));

            double scaleIntro = Double.parseDouble(saveRaster.getTescala().getText());

            int widthPixels = (int)((scaleIntro * saveRaster.getWidth()) / scale);

            int heightPixels = (int)((scaleIntro * saveRaster.getHeight()) / scale);

            saveRaster.getTancho().setText(String.valueOf(widthPixels));

        saveRaster.getTalto().setText(String.valueOf(heightPixels));

    }

    /**

     * Calculo del tama?o en pixels de la imagen a partir de las coordenadas del

     * mundo real, la escala y los puntos por pulgada

     */

    private void calcSizeImageUTM() {

        double lrX = Double.parseDouble(saveRaster.getTinf_derX().getText());

        double lrY = Double.parseDouble(saveRaster.getTinf_derY().getText());

        double ulX = Double.parseDouble(saveRaster.getTsup_izqX().getText());

        double ulY = Double.parseDouble(saveRaster.getTsup_izqY().getText());

        double widthMts = 0;

        if (ulX > lrX) {

            widthMts = ulX - lrX;

        } else {

                widthMts = lrX - ulX;

        }

        double heightMts = 0;

        if (ulY > lrY) {

                heightMts = ulY - lrY;

        } else {

                heightMts = lrY - ulY;

        }

        //Nos aseguramos de que la escala sea un entero. Si no lo es ponemos un 0

        try {

            Integer.parseInt(saveRaster.getTescala().getText());

        } catch (NumberFormatException e) {

            saveRaster.getTescala().setText("0");

        }

        if ((widthMts <= 0) || (heightMts <= 0) ||

                (Integer.parseInt(saveRaster.getTescala().getText()) == 0)) {

            saveRaster.getTancho().setText("0");

            saveRaster.getTalto().setText("0");

            return;

        }

        //Calculo del tama?o de la imagen definitiva en pulgadas

        double anchopulgadas = (widthMts / Double.parseDouble(saveRaster.getTescala().getText())) * 39.73007874D;

        double altopulgadas = (heightMts / Double.parseDouble(saveRaster.getTescala().getText())) * 39.73007874D;

        //Ancho en pixeles = ppp * sizepulgadas

        int anchopixels = (int) (Integer.parseInt(saveRaster.getJComboBox().getSelectedItem().toString()) * 

                                                        anchopulgadas);

        int altopixels = (int) (Integer.parseInt(saveRaster.getJComboBox().getSelectedItem().toString()) * 

                                                        altopulgadas);

        //int anchopixels =(int) (Toolkit.getDefaultToolkit().getScreenResolution() * anchopulgadas);

        //int altopixels = (int) (Toolkit.getDefaultToolkit().getScreenResolution() * altopulgadas);

        saveRaster.getTancho().setText(String.valueOf(anchopixels));

        saveRaster.getTalto().setText(String.valueOf(altopixels));

    }

    /**

     * Controla cuando se cumplen todos los requisitos en el formulario para

     * poder activar el bot?n de aceptar.

     */

    private void enableButtons() {

        if ((saveRaster.getTescala() == null) ||

                saveRaster.getTescala().getText().equals("") ||

                saveRaster.getTescala().getText().equals("0") ||

                (this.fName == null) || this.fName.equals("")) {

            if (dialogPanel != null) {

                dialogPanel.getAcceptButton().setEnabled(false);

            }

            return;

        }

        if (saveRaster.getTancho().getText().equals("0") ||

                saveRaster.getTalto().getText().equals("0")) {

            if (dialogPanel != null) {

                dialogPanel.getAcceptButton().setEnabled(false);

            }

            return;

        }

        if (dialogPanel != null) {

            dialogPanel.getAcceptButton().setEnabled(true);

        }

    }

    /**

     * Gestiona los eventos del cambio de escalla de la imagen y lla apertura del

     * dialogo de selecci?n del nombre del fichero.

     */

    public void actionPerformed(ActionEvent e) {

        if (e.getSource().equals(saveRaster.getJComboBox()) ||

                e.getSource().equals(saveRaster.getTescala()) ||

                e.getSource().equals(saveRaster.getTinf_derX()) ||

                e.getSource().equals(saveRaster.getTinf_derY()) ||

                e.getSource().equals(saveRaster.getTsup_izqX()) ||

                e.getSource().equals(saveRaster.getTsup_izqY())) {

                this.calcSizeImage();

            this.enableButtons();

        }

        //Selector de Fichero sobre el cual se va a salvar a raster

        if (e.getSource().equals(saveRaster.getBseleccion())) {

            JFileChooser chooser = new JFileChooser("./");

            chooser.setDialogTitle("Seleccionar el fichero");

            String os = System.getProperties().getProperty("os.version");

            if (os.startsWith("2.4")) {

                chooser.addChoosableFileFilter(new WriterFilter(chooser, "ecw"));

            }

            chooser.addChoosableFileFilter(new WriterFilter(chooser, "jp2"));

            chooser.addChoosableFileFilter(new WriterFilter(chooser, "tif"));

            chooser.addChoosableFileFilter(new WriterFilter(chooser, "jpg"));

            int returnVal = chooser.showOpenDialog(this);

            if (returnVal == JFileChooser.APPROVE_OPTION) {

                this.fName = chooser.getSelectedFile().toString();

                FileFilter filter = chooser.getFileFilter();

                if ((fName != null) && !fName.equals("")) {

                    if (this.fName.endsWith(".ecw") && os.startsWith("2.4")) {

                        saveRaster.getBPropiedades().setText("Propiedades Ecw");

                    }if (this.fName.endsWith(".jp2")) {

                        saveRaster.getBPropiedades().setText("Propiedades Jp2");

                    }else if (this.fName.endsWith(".tif")) {

                        saveRaster.getBPropiedades().setText("Propiedades GeoTiff");

                    }else if (this.fName.endsWith(".jpg") || this.fName.endsWith(".jpeg")) {

                        saveRaster.getBPropiedades().setText("Propiedades Jpeg");

                    } else if (filter.getDescription().equals(".ecw") && os.startsWith("2.4")) {

                        saveRaster.getBPropiedades().setText("Propiedades Ecw");

                    } else if (filter.getDescription().equals(".tif")) {

                        saveRaster.getBPropiedades().setText("Propiedades GeoTiff");

                    }else if (filter.getDescription().equals(".jpg")) {

                        saveRaster.getBPropiedades().setText("Propiedades Jpeg");

                    }else if (filter.getDescription().equals(".jp2")) {

                        saveRaster.getBPropiedades().setText("Propiedades Jp2");

                    }

                }

                if (!fName.endsWith(".ecw") && 

                        !fName.endsWith(".tif") &&

                                        !fName.endsWith(".jpg") && 

                        !fName.endsWith(".jpeg") && 

                        !fName.endsWith(".jp2") ) {

                    fName = new String(chooser.getSelectedFile().toString() +

                                       filter.getDescription());

                }

                enableButtons();

            }

        }

    }

    /**

     * Devuelve el nombre del fichero seleccionado

     * @return Nombre del fichero seleccionado

     */

    public String getFileName() {

        return fName;

    }

    /**

     * Unused

     */

    public void mouseExited(MouseEvent e) {

    }

    /**

     * Unused. Only for compilant purposes

     */

    public void mouseReleased(MouseEvent e) {

    }

    /**

     * Unused. Only for compilant purposes

     */

    public void mouseEntered(MouseEvent e) {

    }

    public void mouseClicked(MouseEvent e) {

            this.calcSizeImage();

        enableButtons();

    }

    /**

     * Unused. Only for compilant purposes

     */

    public void mousePressed(MouseEvent e) {

    }

    /**

     * Unused. Only for compilant purposes

     */

    public void focusGained(FocusEvent e) {

    }

    /**

     * Recalcula el tama?o de la imagen con los datos existentes y

     * activa o desactiva los botones.

     */

    public void focusLost(FocusEvent e) {

                   this.calcSizeImage();

        enableButtons();

    }

    /**

     * Activa o Desactiva los botones a trav?s de la funci?n que valida los campos

     */

    public void keyTyped(KeyEvent e) {

        enableButtons();

    }

    /**

     * Activa o Desactiva los botones a trav?s de la funci?n que valida los campos

     */

    public void keyPressed(KeyEvent e) {

        enableButtons();

    }

    /**

     * Activa o Desactiva los botones a trav?s de la funci?n que valida los campos

     */

    public void keyReleased(KeyEvent e) {

        enableButtons();

    }

}

/**

 * @author Nacho Brodin <brodin_ign@gva.es>

 * Filtro Gdal para el selector de formatos de escritura

 */

class WriterFilter extends javax.swing.filechooser.FileFilter {

    private JFileChooser chooser = null;

    private String filter;

    public WriterFilter(JFileChooser ch, String fil) {

        this.chooser = ch;

        this.filter = fil;

    }

    public boolean accept(File f) {

        return f.isDirectory() || f.getName().toLowerCase().endsWith("."+filter);

    }

    public String getDescription() {

        return "."+filter;

    }

}