/*
Jazzy - a Java library for Spell Checking
Copyright (C) 2001 Mindaugas Idzelis
Full text of license can be found in LICENSE.txt

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

This library 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
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
*/
package com.swabunga.spell.swing;

import java.awt.Component;
import java.awt.Container;
import java.awt.Graphics;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.zip.ZipInputStream;

import javax.swing.JApplet;
import javax.swing.JButton;
import javax.swing.JTextArea;

import com.swabunga.spell.engine.SpellDictionary;
import com.swabunga.spell.engine.SpellDictionaryHashMap;

/**
 * @author aim4min
 * 
 *         To change this generated comment edit the template variable "typecomment": Window>Preferences>Java>Templates. To enable and
 *         disable the creation of type comments go to Window>Preferences>Java>Code Generation.
 */
public class JSpellApplet extends JApplet {

	private static final String dictionaryFile = "dict/english.0.zip";
	private SpellDictionary dictionary;
	JTextArea text = null;
	JButton spell = null;

	/**
	 * @see java.awt.Component#paint(Graphics)
	 */
	@Override
	public void paint(Graphics arg0) {
		super.paint(arg0);

	}

	/**
	 * @see java.applet.Applet#init()
	 */
	@Override
	public void init() {
		super.init();

		try {
			URL resource = null;
			ZipInputStream zip = null;
			try {
				resource = new URL(getCodeBase().toExternalForm() + dictionaryFile);
				zip = new ZipInputStream(resource.openStream());
				/* getCodeBase() throws a NullPointerException when run
				 * outside the context of a browser
				 */
			} catch (NullPointerException e) {
				FileInputStream fin = new FileInputStream(dictionaryFile);
				zip = new ZipInputStream(fin);
			}
			zip.getNextEntry();
			dictionary = new SpellDictionaryHashMap(new BufferedReader(new InputStreamReader(zip)));

			initGUI();
		} catch (MalformedURLException e) {
			e.printStackTrace();
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}

	}

	private void initGUI() {
		Container frame = getContentPane();
		GridBagLayout gridbag = new GridBagLayout();
		GridBagConstraints c = new GridBagConstraints();
		frame.setLayout(gridbag);
		c.anchor = GridBagConstraints.CENTER;
		c.fill = GridBagConstraints.BOTH;
		c.insets = new Insets(5, 5, 5, 5);
		c.weightx = 1.0;
		c.weighty = 1.0;
		text = new JTextArea("The quck brwn dog jmped over the fnce.");
		text.setLineWrap(true);
		text.setWrapStyleWord(true);
		addToFrame(frame, text, gridbag, c, 0, 0, 1, 1);

		GridBagConstraints spellcon = new GridBagConstraints();
		spellcon.anchor = GridBagConstraints.NORTH;
		spellcon.insets = new Insets(5, 5, 5, 5);

		spell = new JButton("spell check");
		final JTextComponentSpellChecker sc = new JTextComponentSpellChecker(dictionary);
		spell.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent arg0) {
				Thread t = new Thread() {
					@Override
					public void run() {
						try {
							sc.spellCheck(text);
						} catch (Exception ex) {
							ex.printStackTrace();

						}
					}
				};
				t.start();
			}
		});
		addToFrame(frame, spell, gridbag, spellcon, 1, 0, 1, 1);
	}

	// Helps build gridbaglayout.
	private void addToFrame(Container f, Component c, GridBagLayout gbl, GridBagConstraints gbc, int x, int y, int w, int h) {
		gbc.gridx = x;
		gbc.gridy = y;
		gbc.gridwidth = w;
		gbc.gridheight = h;
		gbl.setConstraints(c, gbc);
		f.add(c);
	}
}