/*
 * $Id$
 * Copyright (c) 2005-2007 Bruno Lowagie, Carsten Hammer
 *
 * Permission is hereby granted, free of charge, to any person
 * obtaining a copy of this software and associated documentation
 * files (the "Software"), to deal in the Software without
 * restriction, including without limitation the rights to use,
 * copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following
 * conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */

/*
 * This class was originally published under the MPL by Bruno Lowagie
 * and Carsten Hammer.
 * It was a part of iText, a Java-PDF library. You can now use it under
 * the MIT License; for backward compatibility you can also use it under
 * the MPL version 1.1: http://www.mozilla.org/MPL/
 * A copy of the MPL license is bundled with the source code FYI.
 */

package com.lowagie.toolbox.plugins;

import java.io.File;
import java.io.FileOutputStream;

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

import com.lowagie.text.Document;
import com.lowagie.text.Image;
import com.lowagie.text.PageSize;
import com.lowagie.text.Paragraph;
import com.lowagie.text.Rectangle;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfWriter;
import com.lowagie.text.pdf.RandomAccessFileOrArray;
import com.lowagie.text.pdf.codec.TiffImage;
import com.lowagie.toolbox.AbstractTool;
import com.lowagie.toolbox.arguments.AbstractArgument;
import com.lowagie.toolbox.arguments.FileArgument;
import com.lowagie.toolbox.arguments.OptionArgument;
import com.lowagie.toolbox.arguments.filters.ImageFilter;
import com.lowagie.toolbox.arguments.filters.PdfFilter;

/**
 * Converts a Tiff file to a PDF file.
 * @since 2.1.1 (imported from itexttoolbox project)
 */
public class Tiff2Pdf extends AbstractTool {

	static {
		addVersion("$Id$");
	}
	/**
	 * Constructs a Tiff2Pdf object.
	 */
	public Tiff2Pdf() {
		menuoptions = MENU_EXECUTE | MENU_EXECUTE_SHOW;
		arguments.add(new FileArgument(this, "srcfile", "The file you want to convert", false, new ImageFilter(false, false, false, false, false, true)));
		arguments.add(new FileArgument(this, "destfile", "The file to which the converted TIFF has to be written", true, new PdfFilter()));
		OptionArgument oa = new OptionArgument(this, "pagesize", "Pagesize");
		oa.addOption("A4", "A4");
		oa.addOption("Letter", "LETTER");
		oa.addOption("Original format", "ORIGINAL");
		arguments.add(oa);
	}

	/**
	 * @see com.lowagie.toolbox.AbstractTool#createFrame()
	 */
	protected void createFrame() {
		internalFrame = new JInternalFrame("Tiff2Pdf", true, false, true);
		internalFrame.setSize(550, 250);
		internalFrame.setJMenuBar(getMenubar());
		System.out.println("=== Tiff2Pdf OPENED ===");
	}

	/**
	 * @see com.lowagie.toolbox.AbstractTool#execute()
	 */
	public void execute() {
		try {
			if (getValue("srcfile") == null) throw new InstantiationException("You need to choose a sourcefile");
			File tiff_file = (File)getValue("srcfile");
			if (getValue("destfile") == null) throw new InstantiationException("You need to choose a destination file");
			File pdf_file = (File)getValue("destfile");
			RandomAccessFileOrArray ra = new RandomAccessFileOrArray(tiff_file.getAbsolutePath());
            int comps = TiffImage.getNumberOfPages(ra);
			boolean adjustSize = false;
			Document document = new Document(PageSize.A4);
            float width = PageSize.A4.getWidth() - 40;
            float height = PageSize.A4.getHeight() - 120;
			if ("ORIGINAL".equals(getValue("pagesize"))) {
				Image img = TiffImage.getTiffImage(ra, 1);
                if (img.getDpiX() > 0 && img.getDpiY() > 0) {
                    img.scalePercent(7200f / img.getDpiX(), 7200f / img.getDpiY());
                }
				document.setPageSize(new Rectangle(img.getScaledWidth(), img.getScaledHeight()));
				adjustSize = true;
			}
			else if ("LETTER".equals(getValue("pagesize"))) {
				document.setPageSize(PageSize.LETTER);
                width = PageSize.LETTER.getWidth() - 40;
                height = PageSize.LETTER.getHeight() - 120;
			}
			PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(pdf_file));
			document.open();
			PdfContentByte cb = writer.getDirectContent();
            for (int c = 0; c < comps; ++c) {
                Image img = TiffImage.getTiffImage(ra, c + 1);
                if (img != null) {
                    if (img.getDpiX() > 0 && img.getDpiY() > 0) {
                        img.scalePercent(7200f / img.getDpiX(), 7200f / img.getDpiY());
                    }
                	if (adjustSize) {
    					document.setPageSize(new Rectangle(img.getScaledWidth(),
    							img.getScaledHeight()));
                        document.newPage();
                		img.setAbsolutePosition(0, 0);
                	}
                	else {
                		if (img.getScaledWidth() > width || img.getScaledHeight() > height) {
                            if (img.getDpiX() > 0 && img.getDpiY() > 0) {
                                float adjx = width / img.getScaledWidth();
                                float adjy = height / img.getScaledHeight();
                                float adj = Math.min(adjx, adjy);
                                img.scalePercent(7200f / img.getDpiX() * adj, 7200f / img.getDpiY() * adj);
                            }
                            else
                                img.scaleToFit(width, height);
                		}
                		img.setAbsolutePosition(20, 20);
                        document.newPage();
                        document.add(new Paragraph(tiff_file + " - page " + (c + 1)));
                	}
                    cb.addImage(img);
                    System.out.println("Finished page " + (c + 1));
                }
            }
            ra.close();
            document.close();
		} catch (Exception e) {
        	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
	}


    /**
     * Converts a tiff file to PDF.
     *
     * @param args String[]
     */
    public static void main(String[] args) {
    	Tiff2Pdf tool = new Tiff2Pdf();
    	if (args.length < 2) {
    		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");
	}
}
