001/*
002 * $Id: PdfViewerPreferences.java 4784 2011-03-15 08:33:00Z blowagie $
003 *
004 * This file is part of the iText (R) project.
005 * Copyright (c) 1998-2011 1T3XT BVBA
006 * Authors: Bruno Lowagie, Paulo Soares, et al.
007 *
008 * This program is free software; you can redistribute it and/or modify
009 * it under the terms of the GNU Affero General Public License version 3
010 * as published by the Free Software Foundation with the addition of the
011 * following permission added to Section 15 as permitted in Section 7(a):
012 * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY 1T3XT,
013 * 1T3XT DISCLAIMS THE WARRANTY OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
014 *
015 * This program is distributed in the hope that it will be useful, but
016 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
017 * or FITNESS FOR A PARTICULAR PURPOSE.
018 * See the GNU Affero General Public License for more details.
019 * You should have received a copy of the GNU Affero General Public License
020 * along with this program; if not, see http://www.gnu.org/licenses or write to
021 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
022 * Boston, MA, 02110-1301 USA, or download the license from the following URL:
023 * http://itextpdf.com/terms-of-use/
024 *
025 * The interactive user interfaces in modified source and object code versions
026 * of this program must display Appropriate Legal Notices, as required under
027 * Section 5 of the GNU Affero General Public License.
028 *
029 * In accordance with Section 7(b) of the GNU Affero General Public License,
030 * a covered work must retain the producer line in every PDF that is created
031 * or manipulated using iText.
032 *
033 * You can be released from the requirements of the license by purchasing
034 * a commercial license. Buying such a license is mandatory as soon as you
035 * develop commercial activities involving the iText software without
036 * disclosing the source code of your own applications.
037 * These activities include: offering paid services to customers as an ASP,
038 * serving PDFs on the fly in a web application, shipping iText with a closed
039 * source product.
040 *
041 * For more information, please contact iText Software Corp. at this
042 * address: sales@itextpdf.com
043 */
044package com.itextpdf.text.pdf.interfaces;
045
046import com.itextpdf.text.pdf.PdfName;
047import com.itextpdf.text.pdf.PdfObject;
048
049/**
050 * Viewer preferences are described in section 3.6.1 and 8.1 of the
051 * PDF Reference 1.7 (Table 3.25 on p139-142 and Table 8.1 on p579-581).
052 * They are explained in section 13.1 of the book 'iText in Action'.
053 * The values of the different  preferences were originally stored
054 * in class PdfWriter, but they have been moved to this separate interface
055 * for reasons of convenience.
056 */
057
058public interface PdfViewerPreferences { 
059                
060    /**
061     * Sets the page layout and page mode preferences by ORing one or two of these constants.
062     * <p>
063     * <ul>
064     * <li>The page layout to be used when the document is opened (choose one).
065     *   <ul>
066     *   <li><b>PageLayoutSinglePage</b> - Display one page at a time. (default)
067     *   <li><b>PageLayoutOneColumn</b> - Display the pages in one column.
068     *   <li><b>PageLayoutTwoColumnLeft</b> - Display the pages in two columns, with
069     *       odd-numbered pages on the left.
070     *   <li><b>PageLayoutTwoColumnRight</b> - Display the pages in two columns, with
071     *       odd-numbered pages on the right.
072     *   <li><b>PageLayoutTwoPageLeft</b> - Display the pages two at a time, with
073     *       odd-numbered pages on the left.
074     *   <li><b>PageLayoutTwoPageRight</b> - Display the pages two at a time, with
075     *       odd-numbered pages on the right.
076     *   </ul>
077     * <li>The page mode how the document should be displayed
078     *     when opened (choose one).
079     *   <ul>
080     *   <li><b>PageModeUseNone</b> - Neither document outline nor thumbnail images visible. (default)
081     *   <li><b>PageModeUseOutlines</b> - Document outline visible.
082     *   <li><b>PageModeUseThumbs</b> - Thumbnail images visible.
083     *   <li><b>PageModeFullScreen</b> - Full-screen mode, with no menu bar, window
084     *       controls, or any other window visible.
085     *   <li><b>PageModeUseOC</b> - Optional content group panel visible
086     *   <li><b>PageModeUseAttachments</b> - Attachments panel visible
087     *   </ul>
088     * </ul>
089     * For backward compatibility these values are also supported,
090     * but it's better to use method <code>addViewerPreference(key, value)</code>
091     * if you want to change the following preferences:
092     * <ul>
093     * <li><b>HideToolbar</b> - A flag specifying whether to hide the viewer application's tool
094     *     bars when the document is active.
095     * <li><b>HideMenubar</b> - A flag specifying whether to hide the viewer application's
096     *     menu bar when the document is active.
097     * <li><b>HideWindowUI</b> - A flag specifying whether to hide user interface elements in
098     *     the document's window (such as scroll bars and navigation controls),
099     *     leaving only the document's contents displayed.
100     * <li><b>FitWindow</b> - A flag specifying whether to resize the document's window to
101     *     fit the size of the first displayed page.
102     * <li><b>CenterWindow</b> - A flag specifying whether to position the document's window
103     *     in the center of the screen.
104     * <li><b>DisplayDocTitle</b> - A flag specifying whether to display the document's title
105     *     in the top bar.
106     * <li>The predominant reading order for text. This entry has no direct effect on the
107     *     document's contents or page numbering, but can be used to determine the relative
108     *     positioning of pages when displayed side by side or printed <i>n-up</i> (choose one).
109     *   <ul>
110     *   <li><b>DirectionL2R</b> - Left to right
111     *   <li><b>DirectionR2L</b> - Right to left (including vertical writing systems such as
112     *       Chinese, Japanese, and Korean)
113     *   </ul>
114     * <li>The document's page mode, specifying how to display the
115     *     document on exiting full-screen mode. It is meaningful only
116     *     if the page mode is <b>PageModeFullScreen</b> (choose one).
117     *   <ul>
118     *   <li><b>NonFullScreenPageModeUseNone</b> - Neither document outline nor thumbnail images
119     *       visible
120     *   <li><b>NonFullScreenPageModeUseOutlines</b> - Document outline visible
121     *   <li><b>NNonFullScreenPageModeUseThumbs</b> - Thumbnail images visible
122     *   <li><b>NonFullScreenPageModeUseOC</b> - Optional content group panel visible
123     *   </ul>
124     * <li><b>PrintScalingNone</b> - Indicates that the print dialog should reflect no page scaling.
125     * </ul>
126     * @param preferences the viewer preferences
127         * @see PdfViewerPreferences#addViewerPreference
128     */
129    public void setViewerPreferences(int preferences);
130    
131    /**
132     * Adds a viewer preference.
133     * <ul>
134     * <li>In case the key is one of these values:
135     *          <ul>
136     *                  <li>PdfName.<b>HIDETOOLBAR</b>
137     *                  <li>PdfName.<b>HIDEMENUBAR</b>
138     *                  <li>PdfName.<b>HIDEWINDOWUI</b>
139     *                  <li>PdfName.<b>FITWINDOW</b>
140     *                  <li>PdfName.<b>CENTERWINDOW</b>
141     *                  <li>PdfName.<b>DISPLAYDOCTITLE</b>
142     *          </ul>
143     * The value must be a of type PdfBoolean (true or false).
144     * <li>In case the key is PdfName.<b>NONFULLSCREENPAGEMODE</b>,
145     * the value must be one of these names:
146     *          <ul>
147     *                  <li>PdfName.<b>USENONE</b>
148     *                  <li>PdfName.<b>USEOUTLINES</b>
149     *                  <li>PdfName.<b>USETHUMBS</b>
150     *                  <li>PdfName.<b>USEOC</b>
151     *          </ul>
152     * <li>In case the key is PdfName.DIRECTION,
153     * the value must be one of these names:
154     *          <ul>
155     *                  <li>PdfName.<b>L2R</b>
156     *                  <li>PdfName.<b>R2L</b>
157     *          </ul>
158     * <li>In case the key is one of these values:
159     *          <ul>
160     *                  <li>PdfName.<b>VIEWAREA</b>
161     *                  <li>PdfName.<b>VIEWCLIP</b>
162     *                  <li>PdfName.<b>PRINTAREA</b>
163     *                  <li>PdfName.<b>PRINTCLIP</b>
164     *          </ul>
165     *  The value must be one of these names:
166     *          <ul>
167     *                  <li>PdfName.<b>MEDIABOX</b>
168     *                  <li>PdfName.<b>CROPBOX</b>
169     *                  <li>PdfName.<b>BLEEDBOX</b>
170     *                  <li>PdfName.<b>TRIMBOX</b>
171     *                  <li>PdfName.<b>ARTBOX</b>
172     *          </ul>
173     * <li>In case the key is PdfName.<b>PRINTSCALING</b>, the value can be
174     *          <ul>
175     *                  <li>PdfName.<b>APPDEFAULT</b>
176     *                  <li>PdfName.<b>NONE</b>
177     *          </ul>
178     * <li>In case the key is PdfName.<b>DUPLEX</b>, the value can be:
179     *          <ul>
180     *                  <li>PdfName.<b>SIMPLEX</b>
181     *                  <li>PdfName.<b>DUPLEXFLIPSHORTEDGE</b>
182     *                  <li>PdfName.<b>DUPLEXFLIPLONGEDGE</b>
183     *          </ul>
184     * <li>In case the key is PdfName.<b>PICKTRAYBYPDFSIZE</b>, the value must be of type PdfBoolean.
185     * <li>In case the key is PdfName.<b>PRINTPAGERANGE</b>, the value must be of type PdfArray.
186     * <li>In case the key is PdfName.<b>NUMCOPIES</b>, the value must be of type PdfNumber.
187     * <ul>
188     * </ul>
189     * @param key       the name of the viewer preference
190     * @param value     the value of the viewer preference
191         * @see PdfViewerPreferences#setViewerPreferences
192     */
193    public void addViewerPreference(PdfName key, PdfObject value);      
194}