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/*
* $Id: Divide.java 3271 2008-04-18 20:39:42Z xlv $
* Copyright (c) 2005-2007 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 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 com.lowagie.text.Document;
import com.lowagie.text.Rectangle;
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.toolbox.AbstractTool;
import com.lowagie.toolbox.arguments.AbstractArgument;
import com.lowagie.toolbox.arguments.FileArgument;
import com.lowagie.toolbox.arguments.filters.PdfFilter;
/**
* This tool lets you generate a PDF that shows N pages on 1.
* @since 2.1.1 (imported from itexttoolbox project)
*/
public class Divide extends AbstractTool {
static {
addVersion("$Id: Divide.java 3271 2008-04-18 20:39:42Z xlv $");
}
/**
* Constructs an Divide object.
*/
public Divide() {
menuoptions = MENU_EXECUTE | MENU_EXECUTE_SHOW;
arguments.add(new FileArgument(this, "srcfile",
"The file you want to divide", false, new PdfFilter()));
arguments.add(new FileArgument(this, "destfile", "The resulting PDF",
true, new PdfFilter()));
}
/**
* @see com.lowagie.toolbox.AbstractTool#createFrame()
*/
protected void createFrame() {
internalFrame = new JInternalFrame("Divide", true, false, true);
internalFrame.setSize(300, 80);
internalFrame.setJMenuBar(getMenubar());
System.out.println("=== Divide 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 src = (File) getValue("srcfile");
if (getValue("destfile") == null) {
throw new InstantiationException(
"You need to choose a destination file");
}
File dest = (File) getValue("destfile");
// we create a reader for a certain document
PdfReader reader = new PdfReader(src.getAbsolutePath());
// we retrieve the total number of pages and the page size
int total = reader.getNumberOfPages();
System.out.println("There are " + total
+ " pages in the original file.");
Rectangle pageSize = reader.getPageSize(1);
Rectangle newSize = new Rectangle(pageSize.getWidth() / 2, pageSize
.getHeight());
// step 1: creation of a document-object
Document document = new Document(newSize, 0, 0, 0, 0);
// step 2: we create a writer that listens to the document
PdfWriter writer = PdfWriter.getInstance(document,
new FileOutputStream(dest));
// step 3: we open the document
document.open();
// step 4: adding the content
PdfContentByte cb = writer.getDirectContent();
PdfImportedPage page;
float offsetX, offsetY;
int p;
for (int i = 0; i < total; i++) {
p = i + 1;
pageSize = reader.getPageSize(p);
newSize = new Rectangle(pageSize.getWidth() / 2, pageSize.getHeight());
document.newPage();
offsetX = 0;
offsetY = 0;
page = writer.getImportedPage(reader, p);
cb.addTemplate(page, 1, 0, 0, 1, offsetX, offsetY);
document.newPage();
offsetX = -newSize.getWidth();
offsetY = 0;
page = writer.getImportedPage(reader, p);
cb.addTemplate(page, 1, 0, 0, 1, offsetX, offsetY);
}
// step 5: we close the document
document.close();
} catch (Exception e) {
e.printStackTrace();
}
}
/**
*
* @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
}
/**
* Generates a divided version of an NUp version of an existing PDF file.
*
* @param args String[]
*/
public static void main(String[] args) {
Divide tool = new Divide();
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");
}
}
