Package com.lowagie.tools.plugins

Source Code of com.lowagie.tools.plugins.Burst

/*
* $Id: Burst.java 45 2007-05-15 22:02:53Z chammer $
* 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 toolbox plug-in is based on a small example published
* with the following notices:
*
* This code is free software. It may only be copied or modified
* if you include the following copyright notice:
*
* This class by Mark Thompson. Copyright (c) 2002 Mark Thompson.
*
* This code 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.
*
* It was adapted by Bruno Lowagie and published as a toolbox plug-in
* 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.tools.plugins;

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

import javax.swing.JInternalFrame;

import com.lowagie.text.Document;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfImportedPage;
import com.lowagie.text.pdf.PdfReader;
import com.lowagie.text.pdf.PdfWriter;
import com.lowagie.tools.AbstractTool;
import com.lowagie.tools.arguments.FileArgument;
import com.lowagie.tools.arguments.StringArgument;
import com.lowagie.tools.arguments.filters.PdfFilter;
import com.lowagie.tools.swing.PdfInformationPanel;

/**
* This tool lets you split a PDF in several separate PDF files (1 per page).
*/
public class Burst extends AbstractTool {

  static {
    addVersion("$Id: Burst.java 45 2007-05-15 22:02:53Z chammer $");
  }

  /**
   * Constructs a Burst object.
   */
  public Burst() {
    FileArgument f = new FileArgument(this, "srcfile", "The file you want to split", false, new PdfFilter());
    f.setLabel(new PdfInformationPanel());
    arguments.add(f);
  }

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

  /**
   * @see com.lowagie.tools.AbstractTool#execute()
   */
  public void execute() {
        try {
      if (getValue("srcfile") == null) throw new InstantiationException("You need to choose a sourcefile");
      File src = (File)getValue("srcfile");
            File directory = src.getParentFile();
            String name = src.getName();
            name = name.substring(0, name.lastIndexOf('.'));
          // we create a reader for a certain document
      PdfReader reader = new PdfReader(src.getAbsolutePath());
      // we retrieve the total number of pages
      int n = reader.getNumberOfPages();
      int digits = 1 + (n / 10);
      System.out.println("There are " + n + " pages in the original file.");
      Document document;
      int pagenumber;
      String filename;
            for (int i = 0; i < n; i++) {
              pagenumber = i + 1;
              filename = String.valueOf(pagenumber);
              while (filename.length() < digits) filename = "0" + filename;
              filename = "_" + filename + ".pdf";
              // step 1: creation of a document-object
              document = new Document(reader.getPageSizeWithRotation(pagenumber));
        // step 2: we create a writer that listens to the document
              PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(new File(directory, name + filename)));
              // step 3: we open the document
              document.open();
              PdfContentByte cb = writer.getDirectContent();
        PdfImportedPage page = writer.getImportedPage(reader, pagenumber);
        int rotation = reader.getPageRotation(pagenumber);
        if (rotation == 90 || rotation == 270) {
          cb.addTemplate(page, 0, -1f, 1f, 0, 0, reader.getPageSizeWithRotation(pagenumber).height());
        }
        else {
          cb.addTemplate(page, 1f, 0, 0, 1f, 0, 0);
        }
        // step 5: we close the document
        document.close();
      }
        }
        catch(Exception e) {
            e.printStackTrace();
        }
    }

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


    /**
     * Divide PDF file into pages.
     *
     * @param args String[]
     */
    public static void main(String[] args) {
      Burst tool = new Burst();
      if (args.length < 1) {
        System.err.println(tool.getUsage());
      }
      tool.setMainArguments(args);
        tool.execute();
  }

    /**
     *
     * @see com.lowagie.tools.AbstractTool#getDestPathPDF()
     * @throws InstantiationException
     * @return File
     */
    protected File getDestPathPDF() throws InstantiationException {
    throw new InstantiationException("There is more than one destfile.");
  }
}
TOP

Related Classes of com.lowagie.tools.plugins.Burst

TOP
Copyright © 2018 www.massapi.com. All rights reserved.
All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.