221 lines
8.4 KiB
C#
221 lines
8.4 KiB
C#
using System;
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/*
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* $Id: PdfDestination.cs,v 1.3 2008/05/13 11:25:19 psoares33 Exp $
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*
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*
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* Copyright 1999, 2000, 2001, 2002 Bruno Lowagie
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* (the "License"); you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the License.
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*
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* The Original Code is 'iText, a free JAVA-PDF library'.
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*
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* The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
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* the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
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* All Rights Reserved.
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* Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
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* are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
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*
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* Contributor(s): all the names of the contributors are added in the source code
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* where applicable.
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*
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* Alternatively, the contents of this file may be used under the terms of the
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* LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
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* provisions of LGPL are applicable instead of those above. If you wish to
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* allow use of your version of this file only under the terms of the LGPL
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* License and not to allow others to use your version of this file under
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* the MPL, indicate your decision by deleting the provisions above and
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* replace them with the notice and other provisions required by the LGPL.
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* If you do not delete the provisions above, a recipient may use your version
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* of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
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*
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* This library is free software; you can redistribute it and/or modify it
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* under the terms of the MPL as stated above or under the terms of the GNU
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* Library General Public License as published by the Free Software Foundation;
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* either version 2 of the License, or any later version.
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*
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* This library is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
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* details.
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*
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* If you didn't download this code from the following link, you should check if
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* you aren't using an obsolete version:
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* http://www.lowagie.com/iText/
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*/
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namespace iTextSharp.text.pdf {
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/**
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* A <CODE>PdfColor</CODE> defines a Color (it's a <CODE>PdfArray</CODE> containing 3 values).
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*
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* @see PdfDictionary
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*/
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public class PdfDestination : PdfArray {
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// public static member-variables
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/** This is a possible destination type */
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public const int XYZ = 0;
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/** This is a possible destination type */
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public const int FIT = 1;
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/** This is a possible destination type */
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public const int FITH = 2;
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/** This is a possible destination type */
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public const int FITV = 3;
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/** This is a possible destination type */
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public const int FITR = 4;
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/** This is a possible destination type */
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public const int FITB = 5;
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/** This is a possible destination type */
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public const int FITBH = 6;
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/** This is a possible destination type */
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public const int FITBV = 7;
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// member variables
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/** Is the indirect reference to a page already added? */
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private bool status = false;
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// constructors
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/**
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* Constructs a new <CODE>PdfDestination</CODE>.
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* <P>
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* If <VAR>type</VAR> equals <VAR>FITB</VAR>, the bounding box of a page
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* will fit the window of the Reader. Otherwise the type will be set to
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* <VAR>FIT</VAR> so that the entire page will fit to the window.
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*
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* @param type The destination type
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*/
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public PdfDestination(int type) : base() {
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if (type == FITB) {
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Add(PdfName.FITB);
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}
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else {
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Add(PdfName.FIT);
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}
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}
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/**
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* Constructs a new <CODE>PdfDestination</CODE>.
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* <P>
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* If <VAR>type</VAR> equals <VAR>FITBH</VAR> / <VAR>FITBV</VAR>,
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* the width / height of the bounding box of a page will fit the window
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* of the Reader. The parameter will specify the y / x coordinate of the
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* top / left edge of the window. If the <VAR>type</VAR> equals <VAR>FITH</VAR>
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* or <VAR>FITV</VAR> the width / height of the entire page will fit
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* the window and the parameter will specify the y / x coordinate of the
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* top / left edge. In all other cases the type will be set to <VAR>FITH</VAR>.
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*
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* @param type the destination type
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* @param parameter a parameter to combined with the destination type
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*/
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public PdfDestination(int type, float parameter) : base(new PdfNumber(parameter)) {
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switch (type) {
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default:
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AddFirst(PdfName.FITH);
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break;
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case FITV:
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AddFirst(PdfName.FITV);
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break;
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case FITBH:
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AddFirst(PdfName.FITBH);
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break;
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case FITBV:
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AddFirst(PdfName.FITBV);
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break;
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}
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}
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/** Constructs a new <CODE>PdfDestination</CODE>.
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* <P>
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* Display the page, with the coordinates (left, top) positioned
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* at the top-left corner of the window and the contents of the page magnified
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* by the factor zoom. A negative value for any of the parameters left or top, or a
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* zoom value of 0 specifies that the current value of that parameter is to be retained unchanged.
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* @param type must be a <VAR>PdfDestination.XYZ</VAR>
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* @param left the left value. Negative to place a null
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* @param top the top value. Negative to place a null
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* @param zoom The zoom factor. A value of 0 keeps the current value
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*/
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public PdfDestination(int type, float left, float top, float zoom) : base(PdfName.XYZ) {
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if (left < 0)
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Add(PdfNull.PDFNULL);
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else
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Add(new PdfNumber(left));
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if (top < 0)
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Add(PdfNull.PDFNULL);
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else
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Add(new PdfNumber(top));
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Add(new PdfNumber(zoom));
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}
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/** Constructs a new <CODE>PdfDestination</CODE>.
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* <P>
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* Display the page, with its contents magnified just enough
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* to fit the rectangle specified by the coordinates left, bottom, right, and top
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* entirely within the window both horizontally and vertically. If the required
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* horizontal and vertical magnification factors are different, use the smaller of
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* the two, centering the rectangle within the window in the other dimension.
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*
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* @param type must be PdfDestination.FITR
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* @param left a parameter
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* @param bottom a parameter
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* @param right a parameter
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* @param top a parameter
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* @since iText0.38
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*/
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public PdfDestination(int type, float left, float bottom, float right, float top) : base(PdfName.FITR) {
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Add(new PdfNumber(left));
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Add(new PdfNumber(bottom));
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Add(new PdfNumber(right));
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Add(new PdfNumber(top));
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}
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// methods
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/**
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* Checks if an indirect reference to a page has been added.
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*
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* @return <CODE>true</CODE> or <CODE>false</CODE>
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*/
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public bool HasPage() {
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return status;
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}
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/** Adds the indirect reference of the destination page.
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*
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* @param page an indirect reference
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* @return true if the page reference was added
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*/
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public bool AddPage(PdfIndirectReference page) {
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if (!status) {
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AddFirst(page);
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status = true;
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return true;
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}
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return false;
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}
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}
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} |