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Open Source (LGPL) JavaFX PDF Viewer
There is a newer version: 7.15.25
/*
 * ===========================================
 * Java Pdf Extraction Decoding Access Library
 * ===========================================
 *
 * Project Info:  http://www.idrsolutions.com
 * Help section for developers at http://www.idrsolutions.com/support/
 *
 * (C) Copyright 1997-2017 IDRsolutions and Contributors.
 *
 * This file is part of JPedal/JPDF2HTML5
 *
 @LICENSE@
 *
 * ---------------
 * Security.java
 * ---------------
 */
package org.jpedal.examples.viewer.commands;

import java.awt.Component;
import javax.swing.JOptionPane;

import org.jpedal.PdfDecoderInt;
import org.jpedal.display.GUIThumbnailPanel;
import org.jpedal.examples.viewer.Values;
import org.jpedal.examples.viewer.gui.generic.GUISearchWindow;
import org.jpedal.examples.viewer.gui.popups.EncryptPDFDocument;
import org.jpedal.examples.viewer.utils.ItextFunctions;
import org.jpedal.examples.viewer.utils.PropertiesFile;
import org.jpedal.gui.GUIFactory;
import org.jpedal.objects.PdfPageData;
import org.jpedal.utils.Messages;

/**
 * This class allows you to encrypt the current page
 * of the document which adds a level of security.
 * It uses itext function encrypt() to achieve this.
 */
@SuppressWarnings({"UnusedAssignment", "PMD"})
public class Security {

    public static void execute(final Object[] args, final Values commonValues, final GUISearchWindow searchFrame,
                               final GUIFactory currentGUI, final PdfDecoderInt decode_pdf, final PropertiesFile properties,
                               final GUIThumbnailPanel thumbnails) {
        if (args == null) {
            if (commonValues.getSelectedFile() == null) {
                currentGUI.showMessageDialog(Messages.getMessage("PdfViewer.NoFile"));
            } else {
                //get values from user
                final EncryptPDFDocument encryptPage = new EncryptPDFDocument(commonValues.getInputDir(), commonValues.getPageCount(), commonValues.getCurrentPage());
                final int encrypt = encryptPage.display((Component) currentGUI.getFrame(), "Standard Security");

                //get parameters and call if YES
                if (encrypt == JOptionPane.OK_OPTION) {

                    final PdfPageData currentPageData = decode_pdf.getPdfPageData();

                    decode_pdf.closePdfFile();
//                    final ItextFunctions itextFunctions = new ItextFunctions(currentGUI, commonValues.getSelectedFile(), decode_pdf);
                    ItextFunctions.encrypt(commonValues.getPageCount(), currentPageData, encryptPage);
                    OpenFile.open(commonValues.getSelectedFile(), commonValues, searchFrame, currentGUI, decode_pdf, properties, thumbnails);
                }
            }
        }
    }
}