/*
 * $Id$
 *
 * Copyright 2005 by Hans-Werner Hilse.
 *
 * The contents of this file are subject to the Mozilla Public License Version 1.1
 * (the "License"); you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the License.
 *
 * The Original Code is 'iText, a free JAVA-PDF library'.
 *
 * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
 * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
 * All Rights Reserved.
 * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
 * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
 *
 * Contributor(s): all the names of the contributors are added in the source code
 * where applicable.
 *
 * Alternatively, the contents of this file may be used under the terms of the
 * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
 * provisions of LGPL are applicable instead of those above.  If you wish to
 * allow use of your version of this file only under the terms of the LGPL
 * License and not to allow others to use your version of this file under
 * the MPL, indicate your decision by deleting the provisions above and
 * replace them with the notice and other provisions required by the LGPL.
 * If you do not delete the provisions above, a recipient may use your version
 * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the MPL as stated above or under the terms of the GNU
 * Library General Public License as published by the Free Software Foundation;
 * either version 2 of the License, or 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 Library general Public License for more
 * details.
 *
 * If you didn't download this code from the following link, you should check if
 * you aren't using an obsolete version:
 * http://www.lowagie.com/iText/
 */
package com.lowagie.toolbox.plugins;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.HashMap;
import java.util.List;

import javax.swing.JInternalFrame;
import javax.swing.JOptionPane;

import com.lowagie.text.pdf.PdfReader;
import com.lowagie.text.pdf.PdfStamper;
import com.lowagie.text.pdf.PdfWriter;
import com.lowagie.text.pdf.SimpleBookmark;
import com.lowagie.toolbox.AbstractTool;
import com.lowagie.toolbox.arguments.AbstractArgument;
import com.lowagie.toolbox.arguments.FileArgument;
import com.lowagie.toolbox.arguments.filters.PdfFilter;

/**
 * Allows you to add bookmarks to an existing PDF file
 * @since 2.1.1 (imported from itexttoolbox project)
 */
public class XML2Bookmarks extends AbstractTool {

	static {
		addVersion("$Id$");
	}

	/**
	 * Constructs an XML2Bookmarks object.
	 */
	public XML2Bookmarks() {
		arguments.add(new FileArgument(this, "xmlfile", "the bookmarks in XML", false));
		arguments.add(new FileArgument(this, "pdffile", "the PDF to which you want to add bookmarks", false, new PdfFilter()));
		arguments.add(new FileArgument(this, "destfile", "the resulting PDF", true, new PdfFilter()));
	}

	/**
	 * @see com.lowagie.toolbox.AbstractTool#createFrame()
	 */
	protected void createFrame() {
		internalFrame = new JInternalFrame("XML + PDF = PDF", true, true, true);
		internalFrame.setSize(300, 80);
		internalFrame.setJMenuBar(getMenubar());
		System.out.println("=== XML2Bookmarks OPENED ===");
	}

	/**
	 * @see com.lowagie.toolbox.AbstractTool#execute()
	 */
	public void execute() {
		try {
			if (getValue("xmlfile") == null) throw new InstantiationException("You need to choose an xml file");
			if (getValue("pdffile") == null) throw new InstantiationException("You need to choose a source PDF file");
			if (getValue("destfile") == null) throw new InstantiationException("You need to choose a destination PDF file");
            FileInputStream bmReader = new FileInputStream( (File) getValue("xmlfile") );
            List<HashMap<String, Object>> bookmarks = SimpleBookmark.importFromXML( bmReader );
            bmReader.close();
            PdfReader reader = new PdfReader(((File)getValue("pdffile")).getAbsolutePath());
            reader.consolidateNamedDestinations();
            PdfStamper stamper = new PdfStamper(reader, new FileOutputStream((File)getValue("destfile")));
            stamper.setOutlines(bookmarks);
            stamper.setViewerPreferences(reader.getSimpleViewerPreferences() | PdfWriter.PageModeUseOutlines);
            stamper.close();
		}
		catch(Exception e) {
			e.printStackTrace();
        	JOptionPane.showMessageDialog(internalFrame,
        		    e.getMessage(),
        		    e.getClass().getName(),
        		    JOptionPane.ERROR_MESSAGE);
            System.err.println(e.getMessage());
		}
	}

    /**
     *
     * @see com.lowagie.toolbox.AbstractTool#valueHasChanged(com.lowagie.toolbox.arguments.AbstractArgument)
     * @param arg StringArgument
     */
    public void valueHasChanged(AbstractArgument arg) {
		if (internalFrame == null) {
			// if the internal frame is null, the tool was called from the command line
			return;
		}
		// represent the changes of the argument in the internal frame
	}

    /**
     * Allows you to generate an index file in HTML containing Bookmarks to an existing PDF file.
     *
     * @param args String[]
     */
    public static void main(String[] args) {
    	XML2Bookmarks tool = new XML2Bookmarks();
    	if (args.length < 3) {
    		System.err.println(tool.getUsage());
    	}
    	tool.setMainArguments(args);
        tool.execute();
    }

    /**
     *
     * @see com.lowagie.toolbox.AbstractTool#getDestPathPDF()
     * @throws InstantiationException
     * @return File
     */
    protected File getDestPathPDF() throws InstantiationException {
		return (File)getValue("destfile");
	}

}
