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/*
* $Id: SelectedPages.java,v 1.7 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.PRAcroForm;
import com.lowagie.text.pdf.PdfCopy;
import com.lowagie.text.pdf.PdfImportedPage;
import com.lowagie.text.pdf.PdfReader;
import com.lowagie.tools.arguments.FileArgument;
import com.lowagie.tools.arguments.PageSelectorToolArgument;
import com.lowagie.tools.arguments.PdfFilter;
import com.lowagie.tools.arguments.ToolArgument;
/**
* This tool lets you select pages from an existing PDF and copy them into a new PDF.
*/
public class SelectedPages
extends AbstractTool {
static {
addVersion(
"$Id: SelectedPages.java,v 1.7 2005/11/29 21:05:02 blowagie Exp $");
}
/**
* Constructs a SelectedPages object.
*/
public SelectedPages() {
menuoptions = MENU_EXECUTE | MENU_EXECUTE_SHOW;
ToolArgument inputfile = new FileArgument(this, "srcfile",
"The file you want to split", false,
new PdfFilter());
arguments.add(inputfile);
arguments.add(new FileArgument(this, "destfile",
"The file to which the first part of the original PDF has to be written", true,
new PdfFilter()));
ToolArgument spfpdf = new PageSelectorToolArgument(this, "selection",
"A selection of pages (see Help for more info)", String.class.getName());
arguments.add(spfpdf);
inputfile.addPropertyChangeListener(spfpdf);
}
/**
* @see com.lowagie.tools.plugins.AbstractTool#createFrame()
*/
protected void createFrame() {
internalFrame = new JInternalFrame("SelectedPages", true, false, true);
internalFrame.setSize(300, 80);
internalFrame.setJMenuBar(getMenubar());
System.out.println("=== SelectedPages 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");
if (getValue("destfile") == null) {
throw new InstantiationException(
"You need to choose a destination file for the first part of the PDF");
}
File dest = (File) getValue("destfile");
String selection = (String) getValue("selection");
// we create a reader for a certain document
PdfReader reader = new PdfReader(src.getAbsolutePath());
System.out.println("The original file had " + reader.getNumberOfPages() +
" pages.");
reader.selectPages(selection);
int pages = reader.getNumberOfPages();
System.err.println("The new file has " + pages + " pages.");
Document document = new Document(reader.getPageSizeWithRotation(1));
PdfCopy copy = new PdfCopy(document,
new FileOutputStream(dest.getAbsolutePath()));
document.open();
PdfImportedPage page;
for (int i = 0; i < pages; ) {
++i;
System.out.println("Processed page " + i);
page = copy.getImportedPage(reader, i);
copy.addPage(page);
}
PRAcroForm form = reader.getAcroForm();
if (form != null) {
copy.copyAcroForm(reader);
}
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
System.out.println("klasse:" + arg.getClassname());
System.out.println("arg:" + arg.getValue());
}
/**
* Select pages from an existing PDF and copy them into a new PDF.
* @param args
*/
public static void main(String[] args) {
SelectedPages tool = new SelectedPages();
if (args.length < 4) {
System.err.println(tool.getUsage());
}
tool.setArguments(args);
tool.execute();
}
/**
* @see com.lowagie.tools.plugins.AbstractTool#getDestPathPDF()
*/
protected File getDestPathPDF() throws InstantiationException {
return (File) getValue("destfile");
}
}
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