Application: gvSIG desktop

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright (C) 2007-2013 gvSIG Association.

 *

 * 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 3

 * 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.

 *

 * For any additional information, do not hesitate to contact us

 * at info AT gvsig.com, or visit our website www.gvsig.com.

 */

package org.gvsig.mkmvnproject.gui.settings;

import java.awt.BorderLayout;

import java.awt.Font;

import java.awt.GridBagConstraints;

import java.awt.GridBagLayout;

import java.awt.GridLayout;

import java.awt.Insets;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.io.File;

import java.io.FileOutputStream;

import java.io.IOException;

import javax.swing.JButton;

import javax.swing.JLabel;

import javax.swing.JOptionPane;

import javax.swing.JPanel;

import javax.swing.JScrollBar;

import javax.swing.JScrollPane;

import javax.swing.JTextArea;

import javax.swing.event.DocumentEvent;

import javax.swing.event.DocumentListener;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.gvsig.andami.PluginServices;

import org.gvsig.andami.ui.mdiManager.IWindow;

import org.gvsig.andami.ui.mdiManager.WindowInfo;

import org.gvsig.i18n.Messages;

/**

 * This dialog lets the user write the file .gvsig.platform.properties

 * 

 * @author jldominguez

 *

 */

public class PlatformPropertiesWindow extends JPanel

implements IWindow, ActionListener, DocumentListener {

    private static final Logger logger =

        LoggerFactory.getLogger(PlatformPropertiesWindow.class);

    private WindowInfo winfo = null;

    private File targetFile = null;

    private boolean isWindows = false;

    private JPanel northPanel = null;

    private JTextArea contentArea = null;

    private JPanel southPanel = null;

    private JButton saveButton = null;

    private JButton suggButton = null;

    private JButton okButton = null;

    private JButton cancelButton = null;

    private boolean validSettings = false; 

    public PlatformPropertiesWindow(

        File non_existing_file, boolean is_win) {

        targetFile = non_existing_file;

        isWindows = is_win;

        init();

    }

    private void init() {

        this.setLayout(new BorderLayout());

        northPanel = new JPanel(new GridBagLayout());

        GridBagConstraints c = new GridBagConstraints();  

        c.insets = new Insets(1, 10, 1, 10);

        c.weightx = 0.5; // 

        c.fill = GridBagConstraints.HORIZONTAL;

        c.gridx = 0;

        c.gridy = 0;

        northPanel.add(new JLabel(" "), c);

        c.gridy = 1;

        northPanel.add(new JLabel(Messages.getText(

            "_Mandatory_platform_properties_file_not_found")), c);

        c.gridy = 2;

        northPanel.add(new JLabel(Messages.getText(

            "_Use_this_text_editor_to_write_it")), c);

        c.gridy = 3;

        northPanel.add(new JLabel(" "), c);

        // =============================================

        // =============================================

        southPanel = new JPanel();

        southPanel.setLayout(new GridLayout(1, 5, 8, 4));

        // ------------

        southPanel.add(getSaveButton());

        southPanel.add(getSuggButton());

        // ------------

        southPanel.add(new JLabel(" "));

        // ------------

        southPanel.add(getOkButton());

        southPanel.add(getCancelButton());

        // =============================================

        this.add(northPanel, BorderLayout.NORTH);

        JScrollPane scroll = new JScrollPane();

        scroll.setViewportView(getContentArea());

        scroll.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);

        scroll.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);

        this.add(scroll, BorderLayout.CENTER);

        JPanel south2 = new JPanel(new GridBagLayout());

        GridBagConstraints cs = new GridBagConstraints();

        cs.insets = new Insets(15,15,15,15);

        south2.add(southPanel, cs);

        this.add(south2, BorderLayout.SOUTH);

    }

    private JTextArea getContentArea() {

        if (contentArea == null) {

            contentArea = new JTextArea();

            loadSuggested(contentArea);

            contentArea.getDocument().addDocumentListener(this);

        }

        return contentArea;

    }

    private JButton getCancelButton() {

        if (cancelButton == null) {

            cancelButton = new JButton(Messages.getText("_Cancel"));

            cancelButton.addActionListener(this);

        }

        return cancelButton;

    }

    private JButton getSuggButton() {

        if (suggButton == null) {

            suggButton = new JButton(Messages.getText("_Suggested"));

            suggButton.addActionListener(this);

        }

        return suggButton;

    }

    private JButton getOkButton() {

        if (okButton == null) {

            okButton = new JButton(Messages.getText("_Accept"));

            okButton.addActionListener(this);

            okButton.setEnabled(false);

        }

        return okButton;

    }

    private JButton getSaveButton() {

        if (saveButton == null) {

            saveButton = new JButton(Messages.getText("_Save"));

            Font fnt = saveButton.getFont();

            fnt = fnt.deriveFont(Font.BOLD);

            saveButton.setFont(fnt);

            saveButton.addActionListener(this);

        }

        return saveButton;

    }

    // ===================================================

    // ===================================================

    public WindowInfo getWindowInfo() {

        if (winfo == null) {

            winfo = new WindowInfo(WindowInfo.MODALDIALOG);

            winfo.setWidth(550);

            winfo.setHeight(350);

            winfo.setTitle(

                Messages.getText("_Checking_platform_properties"));

        }

        return winfo;

    }

    public Object getWindowProfile() {

        return WindowInfo.DIALOG_PROFILE;

    }

    public static final String SUGGESTED_WINDOWN_CONTENT =

        "native_platform=win\n" +

        "native_distribution=nt\n" +

        "native_compiler=vs8\n" +

        "native_arch=i386\n" +

        "native_libraryType=dynamic";

    public static final String SUGGESTED_NON_WINDOWS_CONTENT =

            "native_platform=linux\n" +

            "native_distribution=all\n" +

            "native_compiler=gcc4\n" +

            "native_arch=i386\n" +

            "native_libraryType=dynamic";

    public void actionPerformed(ActionEvent e) {

        Object src = e.getSource();

        if (src == getOkButton()) {

            if (getSaveButton().isEnabled()) {

                if (!userAcceptsNotSaving()) {

                    return;

                }

            }

            validSettings = true;

            PluginServices.getMDIManager().closeWindow(this);

        }

        if (src == getCancelButton()) {

            validSettings = false;

            PluginServices.getMDIManager().closeWindow(this);

        }

        if (src == getSaveButton()) {

            if (saveContent()) {

                this.getSaveButton().setEnabled(false);

            }

            this.refreshOkButton();

        }

        if (src == getSuggButton()) {

            loadSuggested(getContentArea());

            this.getSaveButton().setEnabled(true);

        }

    }

    /**

     * @return

     */

    private boolean userAcceptsNotSaving() {

        String _msg =

            Messages.getText("_There_are_unsaved_changes_Continue_question");

        String _tit =

            Messages.getText("_Not_saved");

        int usr_opt = JOptionPane.showConfirmDialog(

            this, _msg, _tit, JOptionPane.YES_NO_OPTION,

            JOptionPane.WARNING_MESSAGE);

        return (usr_opt == JOptionPane.YES_OPTION);

    }

    private boolean saveContent() {

        try {

            if (targetFile.exists()) {

                targetFile.delete();

            }

            targetFile.createNewFile();

            FileOutputStream fos = new FileOutputStream(targetFile);

            String contnt = getContentArea().getText();

            fos.write(contnt.getBytes());

            fos.flush();

            fos.close();

            return true;

        } catch (IOException ioe) {

            logger.info("While writing file: " + ioe.getMessage(), ioe);

            String _msg = Messages.getText("_Unable_to_store_file")

                + ": " + targetFile.getAbsolutePath();

            String _tit = Messages.getText("_Error");

            JOptionPane.showMessageDialog(

                this, _msg, _tit, JOptionPane.ERROR_MESSAGE);

            return false;

        }

    }

    private void loadSuggested(JTextArea ta) {

        if (isWindows) {

            ta.setText(SUGGESTED_WINDOWN_CONTENT);

        } else {

            ta.setText(SUGGESTED_NON_WINDOWS_CONTENT);

        }

    }

    public void insertUpdate(DocumentEvent e) {

        this.getSaveButton().setEnabled(true);

    }

    public void removeUpdate(DocumentEvent e) {

        this.getSaveButton().setEnabled(true);

    }

    public void changedUpdate(DocumentEvent e) {

        // should not be called because this text area is simple

    }

    public boolean validSettings() {

        return validSettings;

    }

    private void refreshOkButton() {

        this.getOkButton().setEnabled(targetFile.exists());

    }

}