/*
 * The Unified Mapping Platform (JUMP) is an extensible, interactive GUI 
 * for visualizing and manipulating spatial features with geometry and attributes.
 *
 * Copyright (C) 2003 Vivid Solutions
 * 
 * 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:
 *
 * Vivid Solutions
 * Suite #1A
 * 2328 Government Street
 * Victoria BC  V8T 5G5
 * Canada
 *
 * (250)385-6040
 * www.vividsolutions.com
 */

package com.vividsolutions.jump.workbench.ui;

import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.ScrollPaneConstants;

import com.vividsolutions.jump.I18N;
import com.vividsolutions.jump.util.StringUtil;

/**
 * UI for Displaying an Error Dialog.  
 * @see WorkbenchFrame#warnUser warnUser 
 */


public class ErrorDialog extends JOptionPane {
    private static final String SHOW_DETAILS = I18N.get("ui.ErrorFialog.show-details");
    private static final String HIDE_DETAILS = I18N.get("ui.ErrorFialog.hide-details");

    //The actual width will be MIN_DIALOG_WIDTH or the width as determined by
    //the error message (after applying StringUtil#split to it), whichever is
    //larger. [Jon Aquino]
    private final static int MIN_DIALOG_WIDTH = 500;
    private String details;

    private ErrorDialog() {
        super(I18N.get("ui.ErrorFialog.message"), ERROR_MESSAGE, DEFAULT_OPTION);
    }

    private void addDetailPanel(final JDialog dialog, final JButton detailButton) {
        final JPanel panel = new JPanel(new GridBagLayout());
        final JScrollPane scrollPane = new JScrollPane();
        final JTextArea textArea = new JTextArea();
        textArea.setOpaque(false);
        scrollPane.setOpaque(false);
        textArea.setFont(new Font("Monospaced", 0, 12));
        textArea.setEditable(false);
        scrollPane.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED);
        scrollPane.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED);
        scrollPane.getViewport().add(textArea);
        panel.add(scrollPane,
            new GridBagConstraints(0, 0, 1, 1, 1.0, 0.0,
                GridBagConstraints.NORTHWEST, GridBagConstraints.BOTH,
                new Insets(0, 0, 0, 0), 0, 0));
        textArea.setText(details);
        detailButton.addActionListener(new ActionListener() {
                private boolean showingDetails = false;

                public void actionPerformed(ActionEvent e) {
                    if (showingDetails) {
                        dialog.remove(panel);
                        detailButton.setText(SHOW_DETAILS);
                    } else {
                        scrollPane.setPreferredSize(new Dimension(
                                dialog.getWidth(), 200));
                        dialog.getContentPane().add(panel, BorderLayout.SOUTH);
                        detailButton.setText(HIDE_DETAILS);
                    }

                    showingDetails = !showingDetails;
                    dialog.pack();
                }
            });
    }

    private void setDetails(String details) {
        this.details = details;
    }

    public JDialog createDialog(Component parentComponent, String title) {
        JButton okButton = new JButton("OK");
        JButton detailButton = new JButton(SHOW_DETAILS);
        setOptions(new Object[] { okButton, detailButton });

        final JDialog dialog = super.createDialog(parentComponent, title);
        addDetailPanel(dialog, detailButton);
        okButton.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    dialog.setVisible(false);
                }
            });

        JPanel horizontalStrut = new JPanel();
        horizontalStrut.setPreferredSize(new Dimension(MIN_DIALOG_WIDTH, 0));
        horizontalStrut.setMinimumSize(horizontalStrut.getPreferredSize());
        horizontalStrut.setMaximumSize(horizontalStrut.getPreferredSize());
        dialog.getContentPane().add(horizontalStrut, BorderLayout.NORTH);
        dialog.pack();

        if (parentComponent != null) {
            //For testing. [Jon Aquino]
            GUIUtil.centreOnWindow(dialog);
        }

        //The details panel doesn't properly resize, so just make the dialog
        //unresizable. [Jon Aquino]
        dialog.setResizable(false);

        return dialog;
    }

    public static void show(Component parentComponent, String title,
        String message, String details) {
        ErrorDialog dialog = new ErrorDialog();
        dialog.setMessage(StringUtil.split(message, 80));
        dialog.setDetails(details);
        dialog.createDialog(parentComponent, title).setVisible(true);
    }

}