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/*
* $Id: Burst.java,v 1.8 2005/11/29 21:05:02 blowagie Exp $
* $Name: $
*
* 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.
*
* itext-questions@list.sourceforge.net
*/
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.arguments.FileArgument;
import com.lowagie.tools.arguments.LabelAccessory;
import com.lowagie.tools.arguments.PdfFilter;
import com.lowagie.tools.arguments.ToolArgument;
/**
* 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,v 1.8 2005/11/29 21:05:02 blowagie Exp $");
}
/**
* Constructs a Burst object.
*/
public Burst() {
FileArgument f = new FileArgument(this, "srcfile", "The file you want to split", false, new PdfFilter());
f.setLabel(new LabelAccessory());
arguments.add(f);
}
/**
* @see com.lowagie.tools.plugins.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.plugins.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.plugins.AbstractTool#valueHasChanged(com.lowagie.tools.arguments.ToolArgument)
*/
public void valueHasChanged(ToolArgument 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
*/
public static void main(String[] args) {
Burst tool = new Burst();
if (args.length < 1) {
System.err.println(tool.getUsage());
}
tool.setArguments(args);
tool.execute();
}
/**
* @see com.lowagie.tools.plugins.AbstractTool#getDestPathPDF()
*/
protected File getDestPathPDF() throws InstantiationException {
throw new InstantiationException("There is more than one destfile.");
}
}
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