Application: gvSIG desktop » gvSIG raster

/* gvSIG. Geographic Information System of the Valencian Government

*

* Copyright (C) 2007-2008 Infrastructures and Transports Department

* of the Valencian Government (CIT)

* 

* 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., 51 Franklin Street, Fifth Floor, Boston, 

* MA  02110-1301, USA.

* 

*/

package org.gvsig.raster.swing.impl.newlayer;

import java.awt.BorderLayout;

import java.awt.Dimension;

import java.awt.GridBagConstraints;

import java.awt.GridBagLayout;

import java.awt.Insets;

import java.awt.event.ItemEvent;

import java.awt.event.ItemListener;

import java.io.File;

import java.util.List;

import javax.swing.BorderFactory;

import javax.swing.ButtonGroup;

import javax.swing.JComponent;

import javax.swing.JLabel;

import javax.swing.JPanel;

import javax.swing.JRadioButton;

import javax.swing.JTextField;

import org.gvsig.i18n.Messages;

import org.gvsig.raster.swing.impl.openfile.OpenFileContainerImpl;

import org.gvsig.raster.swing.newlayer.CreateNewLayerPanel;

import org.gvsig.raster.swing.newlayer.FileNameManagement;

import org.gvsig.raster.swing.openfile.OpenFileContainer;

/**

 * Panel to create a new layer. This panel gives the option to select a file

 * or open in memory.

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

 */

public class CreateNewLayerPanelImpl extends JPanel implements CreateNewLayerPanel {

        private static final long    serialVersionUID     = -8569485642371687008L;

        private JRadioButton         jRBFileGenerate      = null;

        private JRadioButton         jRBOpenMemory        = null;

        private JTextField           filenameTextField    = null;

        private JLabel               labelFilename        = null;

        private JPanel               panelNameFile        = null;

        private List<String>         extList              = null;

        private FileNameManagement   fileNameManagement   = null;

        private OpenFileContainer    openFileContainer    = null;

        public CreateNewLayerPanelImpl(FileNameManagement fileNameManagement, String tittle) {

                this.fileNameManagement = fileNameManagement;

                this.extList = fileNameManagement.getPrefixSupported();

                initialize(tittle);

                translate();

                getFileSelectorPanel().setPath(fileNameManagement.getDefaultFilePath());

                updateNewLayerText();

        }

        public CreateNewLayerPanelImpl(FileNameManagement fileNameManagement) {

                this(fileNameManagement, "");

        }

        private void initialize(String tittle) {

                ButtonGroup buttonGroup2;

                buttonGroup2 = new ButtonGroup();

                buttonGroup2.add(getRadioFileGenerate());

                buttonGroup2.add(getRadioOpenMemory());

                setLayout(new GridBagLayout());

                setBorder(BorderFactory.createTitledBorder(tittle));

                GridBagConstraints gridBagConstraints = new GridBagConstraints();

                gridBagConstraints.fill = GridBagConstraints.BOTH;

                gridBagConstraints.weightx = 1.0D;

                gridBagConstraints.anchor = GridBagConstraints.WEST;

                gridBagConstraints.insets = new Insets(2, 2, 5, 2);

                add(getRadioFileGenerate(), gridBagConstraints);

                gridBagConstraints.gridy = 1;

                gridBagConstraints.insets = new Insets(2, 25, 5, 2);

                add((JComponent)getFileSelectorPanel(), gridBagConstraints);

                gridBagConstraints.gridy = 2;

                gridBagConstraints.anchor = GridBagConstraints.WEST;

                gridBagConstraints.insets = new Insets(2, 2, 2, 2);

                add(getRadioOpenMemory(), gridBagConstraints);

                gridBagConstraints.gridy = 3;

                gridBagConstraints.insets = new Insets(2, 25, 2, 2);

                add(getFileNamePanel(), gridBagConstraints);

        }

        /**

         * Seccion donde ir?n todas las traducciones invariables del componente

         */

        private void translate() {

                getRadioFileGenerate().setText(Messages.getText( "generar_fichero"));

                getRadioOpenMemory().setText(Messages.getText( "abrir_memoria"));

                getLabelFilename().setText(Messages.getText( "nombre_capa") + ":");

        }

        /**

         * Devuelve el JRadioButton de generar fichero

         * @return

         */

        public JRadioButton getRadioFileGenerate() {

                if (jRBFileGenerate == null) {

                        jRBFileGenerate = new JRadioButton();

                        jRBFileGenerate.setBorder(BorderFactory.createEmptyBorder(0, 0, 0, 0));

                        jRBFileGenerate.setMargin(new Insets(0, 0, 0, 0));

                }

                return jRBFileGenerate;

        }

        /**

         * Devuelve el JRadioButton de Abrir en memoria

         * @return

         */

        public JRadioButton getRadioOpenMemory() {

                if (jRBOpenMemory == null) {

                        jRBOpenMemory = new JRadioButton();

                        jRBOpenMemory.setBorder(BorderFactory.createEmptyBorder(0, 0, 0, 0));

                        jRBOpenMemory.setMargin(new Insets(0, 0, 0, 0));

                        jRBOpenMemory.addItemListener(new ItemListener() {

                                public void itemStateChanged(ItemEvent evt) {

                                        jRBOpenMemoryStateChanged(evt);

                                }

                        });

                        jRBOpenMemory.setSelected(true);

                }

                return jRBOpenMemory;

        }

        /**

         * This method initializes filenameTextField

         *

         * @return javax.swing.JTextField

         */

        private JTextField getFilenameTextField() {

                if (filenameTextField == null) {

                        filenameTextField = new JTextField();

                        filenameTextField.setPreferredSize(new Dimension(0, filenameTextField.getPreferredSize().height));

                }

                return filenameTextField;

        }

        public OpenFileContainer getFileSelectorPanel() {

                if (openFileContainer == null) {

                        openFileContainer = new OpenFileContainerImpl(

                                        false, 

                                        extList, 

                                        fileNameManagement.getDefaultFilePath());

                }

                return openFileContainer;

        }

        public JPanel getFileNamePanel() {

                if (panelNameFile == null) {

                        panelNameFile = new JPanel();

                        panelNameFile.setLayout(new BorderLayout());

                        panelNameFile.add(getLabelFilename(), BorderLayout.WEST);

                        panelNameFile.add(getFilenameTextField(), BorderLayout.CENTER);

                }

                return panelNameFile;

        }

        private JLabel getLabelFilename() {

                if (labelFilename == null) {

                        labelFilename = new JLabel();

                }

                return labelFilename;

        }

        /**

         * Establece si esta habilitado o no el cuadro de texto de entrada de nombre de

         * fichero

         * @param value

         */

        public void setFilenameEnabled(boolean value) {

                getFilenameTextField().setEnabled(value);

                getLabelFilename().setEnabled(value);

        }

        /**

         * Poner los estados de los RadioButton en caso de que cambien de valor

         * @param evt

         */

        protected void jRBOpenMemoryStateChanged(ItemEvent evt) {

                if (getRadioOpenMemory().getSelectedObjects() != null) {

                        getFileSelectorPanel().setEnabled(false);

                        setFilenameEnabled(true);

                } else {

                        getFileSelectorPanel().setEnabled(true);

                        setFilenameEnabled(false);

                }

        }

        /**

         * Establece el texto de la etiqueta del nombre de fichero

         * @param text

         */

        public void setLabelFilename(String text) {

                getLabelFilename().setText(text);

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.raster.swing.newlayer.CreateNewLayerPanel#getFileSelected()

         */

        public String getFileSelected() {

                boolean isDir = false;

                if (getRadioFileGenerate().isSelected()) {

                        String path = getFileSelectorPanel().getFile().getAbsolutePath();

                        if(new File(path).isDirectory()) {

                                isDir = true;

                        } else {

                                return path.substring(path.lastIndexOf(File.separator) + 1, path.length());

                        }

                } 

                if (!getRadioFileGenerate().isSelected() || isDir) {

                        String file = getFilenameTextField().getText();

                        if (file.compareTo(fileNameManagement.getUniqueLayerName()) == 0)

                                fileNameManagement.usesUniqueLayerName();

                        updateNewLayerText();

                        return file;

                }

                return null;

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.raster.swing.newlayer.CreateNewLayerPanel#getDirectorySelected()

         */

        public String getDirectorySelected() {

                if (getRadioFileGenerate().isSelected()) {

                        String path = getFileSelectorPanel().getFile().getAbsolutePath();

                        if(new File(path).isDirectory()) {

                                return path;

                        } else {

                                return new File(path).getParent();

                        }

                }

                return System.getProperty("java.io.tmpdir");

        }

        /**

         * Especificar el nombre de la nueva capa para el recuadro de texto asignando

         * en cada llamada un nombre consecutivo.

         */

        public void updateNewLayerText() {

                getFilenameTextField().setText(fileNameManagement.getUniqueLayerName());

        }

}