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Devin Jankowski
2023-06-21 12:46:23 -04:00
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iTechSharp/iTextSharp/text/pdf/PdfDestination.cs Normal file
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using System;
/*
* $Id: PdfDestination.cs,v 1.3 2008/05/13 11:25:19 psoares33 Exp $
*
*
* Copyright 1999, 2000, 2001, 2002 Bruno Lowagie
*
* The contents of this file are subject to the Mozilla Public License Version 1.1
* (the "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the License.
*
* The Original Code is 'iText, a free JAVA-PDF library'.
*
* The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
* the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
* All Rights Reserved.
* Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
* are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
*
* Contributor(s): all the names of the contributors are added in the source code
* where applicable.
*
* Alternatively, the contents of this file may be used under the terms of the
* LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
* provisions of LGPL are applicable instead of those above. If you wish to
* allow use of your version of this file only under the terms of the LGPL
* License and not to allow others to use your version of this file under
* the MPL, indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by the LGPL.
* If you do not delete the provisions above, a recipient may use your version
* of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the MPL as stated above or under the terms of the GNU
* Library General Public License as published by the Free Software Foundation;
* either version 2 of the License, or any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
* details.
*
* If you didn't download this code from the following link, you should check if
* you aren't using an obsolete version:
* http://www.lowagie.com/iText/
*/
namespace iTextSharp.text.pdf {
/**
* A <CODE>PdfColor</CODE> defines a Color (it's a <CODE>PdfArray</CODE> containing 3 values).
*
* @see PdfDictionary
*/
public class PdfDestination : PdfArray {
// public static member-variables
/** This is a possible destination type */
public const int XYZ = 0;
/** This is a possible destination type */
public const int FIT = 1;
/** This is a possible destination type */
public const int FITH = 2;
/** This is a possible destination type */
public const int FITV = 3;
/** This is a possible destination type */
public const int FITR = 4;
/** This is a possible destination type */
public const int FITB = 5;
/** This is a possible destination type */
public const int FITBH = 6;
/** This is a possible destination type */
public const int FITBV = 7;
// member variables
/** Is the indirect reference to a page already added? */
private bool status = false;
// constructors
/**
* Constructs a new <CODE>PdfDestination</CODE>.
* <P>
* If <VAR>type</VAR> equals <VAR>FITB</VAR>, the bounding box of a page
* will fit the window of the Reader. Otherwise the type will be set to
* <VAR>FIT</VAR> so that the entire page will fit to the window.
*
* @param type The destination type
*/
public PdfDestination(int type) : base() {
if (type == FITB) {
Add(PdfName.FITB);
}
else {
Add(PdfName.FIT);
}
}
/**
* Constructs a new <CODE>PdfDestination</CODE>.
* <P>
* If <VAR>type</VAR> equals <VAR>FITBH</VAR> / <VAR>FITBV</VAR>,
* the width / height of the bounding box of a page will fit the window
* of the Reader. The parameter will specify the y / x coordinate of the
* top / left edge of the window. If the <VAR>type</VAR> equals <VAR>FITH</VAR>
* or <VAR>FITV</VAR> the width / height of the entire page will fit
* the window and the parameter will specify the y / x coordinate of the
* top / left edge. In all other cases the type will be set to <VAR>FITH</VAR>.
*
* @param type the destination type
* @param parameter a parameter to combined with the destination type
*/
public PdfDestination(int type, float parameter) : base(new PdfNumber(parameter)) {
switch (type) {
default:
AddFirst(PdfName.FITH);
break;
case FITV:
AddFirst(PdfName.FITV);
break;
case FITBH:
AddFirst(PdfName.FITBH);
break;
case FITBV:
AddFirst(PdfName.FITBV);
break;
}
}
/** Constructs a new <CODE>PdfDestination</CODE>.
* <P>
* Display the page, with the coordinates (left, top) positioned
* at the top-left corner of the window and the contents of the page magnified
* by the factor zoom. A negative value for any of the parameters left or top, or a
* zoom value of 0 specifies that the current value of that parameter is to be retained unchanged.
* @param type must be a <VAR>PdfDestination.XYZ</VAR>
* @param left the left value. Negative to place a null
* @param top the top value. Negative to place a null
* @param zoom The zoom factor. A value of 0 keeps the current value
*/
public PdfDestination(int type, float left, float top, float zoom) : base(PdfName.XYZ) {
if (left < 0)
Add(PdfNull.PDFNULL);
else
Add(new PdfNumber(left));
if (top < 0)
Add(PdfNull.PDFNULL);
else
Add(new PdfNumber(top));
Add(new PdfNumber(zoom));
}
/** Constructs a new <CODE>PdfDestination</CODE>.
* <P>
* Display the page, with its contents magnified just enough
* to fit the rectangle specified by the coordinates left, bottom, right, and top
* entirely within the window both horizontally and vertically. If the required
* horizontal and vertical magnification factors are different, use the smaller of
* the two, centering the rectangle within the window in the other dimension.
*
* @param type must be PdfDestination.FITR
* @param left a parameter
* @param bottom a parameter
* @param right a parameter
* @param top a parameter
* @since iText0.38
*/
public PdfDestination(int type, float left, float bottom, float right, float top) : base(PdfName.FITR) {
Add(new PdfNumber(left));
Add(new PdfNumber(bottom));
Add(new PdfNumber(right));
Add(new PdfNumber(top));
}
// methods
/**
* Checks if an indirect reference to a page has been added.
*
* @return <CODE>true</CODE> or <CODE>false</CODE>
*/
public bool HasPage() {
return status;
}
/** Adds the indirect reference of the destination page.
*
* @param page an indirect reference
* @return true if the page reference was added
*/
public bool AddPage(PdfIndirectReference page) {
if (!status) {
AddFirst(page);
status = true;
return true;
}
return false;
}
}
}