/*
* $Id$
* 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 class was originally published 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.toolbox.plugins;
import java.io.File;
import java.io.FileOutputStream;
import javax.swing.JInternalFrame;
import javax.swing.JOptionPane;
import com.lowagie.text.LwgDocument;
import com.lowagie.text.LwgPageSize;
import com.lowagie.text.LwgRectangle;
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.OptionArgument;
import com.lowagie.toolbox.arguments.filters.PdfFilter;
/**
* Generates a PDF file that is usable as Handout.
* @since 2.1.1 (imported from itexttoolbox project)
*/
public class Handouts extends AbstractTool {
static {
addVersion("$Id$");
}
/**
* Constructs a Handouts object.
*/
public Handouts() {
arguments.add(new FileArgument(this, "srcfile", "The file you want to convert", false, new PdfFilter()));
arguments.add(new FileArgument(this, "destfile", "The file to which the Handout has to be written", true, new PdfFilter()));
OptionArgument oa = new OptionArgument(this, "pages", "The number of pages you want on one handout page");
oa.addOption("2 pages on 1", "2");
oa.addOption("3 pages on 1", "3");
oa.addOption("4 pages on 1", "4");
oa.addOption("5 pages on 1", "5");
oa.addOption("6 pages on 1", "6");
oa.addOption("7 pages on 1", "7");
oa.addOption("8 pages on 1", "8");
arguments.add(oa);
}
/**
* @see com.lowagie.toolbox.AbstractTool#createFrame()
*/
protected void createFrame() {
internalFrame = new JInternalFrame("Handouts", true, false, true);
internalFrame.setSize(300, 80);
internalFrame.setJMenuBar(getMenubar());
System.out.println("=== Handouts 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");
int pages;
try {
pages = Integer.parseInt((String) getValue("pages"));
}
catch(Exception e) {
pages = 4;
}
float x1 = 30f;
float x2 = 280f;
float x3 = 320f;
float x4 = 565f;
float[] y1 = new float[pages];
float[] y2 = new float[pages];
float height = (778f - (20f * (pages - 1))) / pages;
y1[0] = 812f;
y2[0] = 812f - height;
for (int i = 1; i < pages; i++) {
y1[i] = y2[i - 1] - 20f;
y2[i] = y1[i] - height;
}
// 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.");
// step 1: creation of a document-object
LwgDocument document = new LwgDocument(LwgPageSize.A4);
// 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();
PdfContentByte cb = writer.getDirectContent();
PdfImportedPage page;
int rotation;
int i = 0;
int p = 0;
// step 4: we add content
while (i < n) {
i++;
LwgRectangle rect = reader.getPageSizeWithRotation(i);
float factorx = (x2 - x1) / rect.getWidth();
float factory = (y1[p] - y2[p]) / rect.getHeight();
float factor = (factorx < factory ? factorx : factory);
float dx = (factorx == factor ? 0f : ((x2 - x1) - rect.getWidth() * factor) / 2f);
float dy = (factory == factor ? 0f : ((y1[p] - y2[p]) - rect.getHeight() * factor) / 2f);
page = writer.getImportedPage(reader, i);
rotation = reader.getPageRotation(i);
if (rotation == 90 || rotation == 270) {
cb.addTemplate(page, 0, -factor, factor, 0, x1 + dx, y2[p] + dy + rect.getHeight() * factor);
}
else {
cb.addTemplate(page, factor, 0, 0, factor, x1 + dx, y2[p] + dy);
}
cb.setRGBColorStroke(0xC0, 0xC0, 0xC0);
cb.rectangle(x3 - 5f, y2[p] - 5f, x4 - x3 + 10f, y1[p] - y2[p] + 10f);
for (float l = y1[p] - 19; l > y2[p]; l -= 16) {
cb.moveTo(x3, l);
cb.lineTo(x4, l);
}
cb.rectangle(x1 + dx, y2[p] + dy, rect.getWidth() * factor, rect.getHeight() * factor);
cb.stroke();
System.out.println("Processed page " + i);
p++;
if (p == pages) {
p = 0;
document.newPage();
}
}
// step 5: we close the document
document.close();
}
catch(Exception e) {
JOptionPane.showMessageDialog(internalFrame,
e.getMessage(),
e.getClass().getName(),
JOptionPane.ERROR_MESSAGE);
System.err.println(e.getMessage());
}
}
/**
*
* @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
}
/**
* Converts a PDF file to a PDF file usable as Handout.
*
* @param args String[]
*/
public static void main(String[] args) {
Handouts tool = new Handouts();
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");
}
}