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{

        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;

        }

        /**

         * 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 calcSizeImage(){

                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 wc_anchomts = 0;

                if(ulX>lrX)wc_anchomts = ulX-lrX;

                        else wc_anchomts = lrX-ulX;

                double wc_altomts = 0;

                if(ulY>lrY)wc_altomts = ulY-lrY;

                        else wc_altomts = lrY-ulY;

                //No 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(wc_anchomts<=0 || wc_altomts<=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 = (wc_anchomts / Double.parseDouble(saveRaster.getTescala().getText())) * 39.73007874;

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

                //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 EcwFilter(chooser));

                         chooser.addChoosableFileFilter(new TifFilter(chooser));

                         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");

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

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

                                         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");

                                 }

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

                                         !fName.endsWith(".tif"))

                                         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 Ecw para el selector de formatos de escritura

 */

class EcwFilter extends javax.swing.filechooser.FileFilter {

        private JFileChooser chooser = null;

        public EcwFilter(JFileChooser ch){

                this.chooser = ch;

        }

    public boolean accept(File f) {

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

    }

    public String getDescription() {

            return ".ecw";

    }

}

/**

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

 * Filtro GTiff para el selector de formatos de escritura

 */

class TifFilter extends javax.swing.filechooser.FileFilter {

        private JFileChooser chooser = null;

        public TifFilter(JFileChooser ch){

                this.chooser = ch;

        }

    public boolean accept(File f) {

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

    }

    public String getDescription() {

            return ".tif";

    }

}