From 6025b6016517c6d898d8957d1d7e03ba71431912 Mon Sep 17 00:00:00 2001 From: tknall Date: Fri, 1 Dec 2006 12:20:24 +0000 Subject: Initial import of release 2.2. git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@4 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c --- src/main/java/com/lowagie/tools/plugins/Split.java | 168 +++++++++++++++++++++ 1 file changed, 168 insertions(+) create mode 100644 src/main/java/com/lowagie/tools/plugins/Split.java (limited to 'src/main/java/com/lowagie/tools/plugins/Split.java') diff --git a/src/main/java/com/lowagie/tools/plugins/Split.java b/src/main/java/com/lowagie/tools/plugins/Split.java new file mode 100644 index 0000000..2c14651 --- /dev/null +++ b/src/main/java/com/lowagie/tools/plugins/Split.java @@ -0,0 +1,168 @@ +/* + * $Id: Split.java,v 1.9 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.DocumentException; +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 two separate PDF files. + */ +public class Split extends AbstractTool { + + static { + addVersion("$Id: Split.java,v 1.9 2005/11/29 21:05:02 blowagie Exp $"); + } + /** + * Constructs an Split object. + */ + public Split() { + FileArgument f = new FileArgument(this, "srcfile", "The file you want to split", false, new PdfFilter()); + f.setLabel(new LabelAccessory()); + arguments.add(f); + arguments.add(new FileArgument(this, "destfile1", "The file to which the first part of the original PDF has to be written", true, new PdfFilter())); + arguments.add(new FileArgument(this, "destfile2", "The file to which the second part of the original PDF has to be written", true, new PdfFilter())); + arguments.add(new ToolArgument(this, "pagenumber", "The pagenumber where you want to split", String.class.getName())); + } + + /** + * @see com.lowagie.tools.plugins.AbstractTool#createFrame() + */ + protected void createFrame() { + internalFrame = new JInternalFrame("Split", true, false, true); + internalFrame.setSize(300, 80); + internalFrame.setJMenuBar(getMenubar()); + System.out.println("=== Split 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("destfile1") == null) throw new InstantiationException("You need to choose a destination file for the first part of the PDF"); + File file1 = (File)getValue("destfile1"); + if (getValue("destfile2") == null) throw new InstantiationException("You need to choose a destination file for the second part of the PDF"); + File file2 = (File)getValue("destfile2"); + int pagenumber = Integer.parseInt((String)getValue("pagenumber")); + + // 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(); + System.out.println("There are " + n + " pages in the original file."); + + if (pagenumber < 2 || pagenumber > n) { + throw new DocumentException("You can't split this document at page " + pagenumber + "; there is no such page."); + } + + // step 1: creation of a document-object + Document document1 = new Document(reader.getPageSizeWithRotation(1)); + Document document2 = new Document(reader.getPageSizeWithRotation(pagenumber)); + // step 2: we create a writer that listens to the document + PdfWriter writer1 = PdfWriter.getInstance(document1, new FileOutputStream(file1)); + PdfWriter writer2 = PdfWriter.getInstance(document2, new FileOutputStream(file2)); + // step 3: we open the document + document1.open(); + PdfContentByte cb1 = writer1.getDirectContent(); + document2.open(); + PdfContentByte cb2 = writer2.getDirectContent(); + PdfImportedPage page; + int rotation; + int i = 0; + // step 4: we add content + while (i < pagenumber - 1) { + i++; + document1.setPageSize(reader.getPageSizeWithRotation(i)); + document1.newPage(); + page = writer1.getImportedPage(reader, i); + rotation = reader.getPageRotation(i); + if (rotation == 90 || rotation == 270) { + cb1.addTemplate(page, 0, -1f, 1f, 0, 0, reader.getPageSizeWithRotation(i).height()); + } + else { + cb1.addTemplate(page, 1f, 0, 0, 1f, 0, 0); + } + } + while (i < n) { + i++; + document2.setPageSize(reader.getPageSizeWithRotation(i)); + document2.newPage(); + page = writer2.getImportedPage(reader, i); + rotation = reader.getPageRotation(i); + if (rotation == 90 || rotation == 270) { + cb2.addTemplate(page, 0, -1f, 1f, 0, 0, reader.getPageSizeWithRotation(i).height()); + } + else { + cb2.addTemplate(page, 1f, 0, 0, 1f, 0, 0); + } + } + // step 5: we close the document + document1.close(); + document2.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 + } + + + /** + * Split a PDF in two separate PDF files. + * @param args + */ + public static void main(String[] args) { + Split tool = new Split(); + 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("destfile1"); + } +} -- cgit v1.2.3