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Devin Jankowski
2023-06-21 12:46:23 -04:00
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iTechSharp/iTextSharp/text/Anchor.cs Normal file
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using System;
using System.Collections;
using System.util;
using iTextSharp.text.html;
using iTextSharp.text.factories;
/*
* $Id: Anchor.cs,v 1.9 2008/05/13 11:25:08 psoares33 Exp $
*
*
* Copyright 1999, 2000, 2001, 2002 by 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 'iTextSharp, 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
{
/// <summary>
/// An Anchor can be a reference or a destination of a reference.
/// </summary>
/// <remarks>
/// An Anchor is a special kind of <see cref="T:iTextSharp.text.Phrase"/>.
/// It is constructed in the same way.
/// </remarks>
/// <seealso cref="T:iTextSharp.text.Element"/>
/// <seealso cref="T:iTextSharp.text.Phrase"/>
public class Anchor : Phrase
{
// membervariables
/// <summary>
/// This is the name of the Anchor.
/// </summary>
protected string name = null;
/// <summary>
/// This is the reference of the Anchor.
/// </summary>
protected string reference = null;
// constructors
/// <summary>
/// Constructs an Anchor without specifying a leading.
/// </summary>
/// <overloads>
/// Has nine overloads.
/// </overloads>
public Anchor() : base(16) {}
/// <summary>
/// Constructs an Anchor with a certain leading.
/// </summary>
/// <param name="leading">the leading</param>
public Anchor(float leading) : base(leading) {}
/// <summary>
/// Constructs an Anchor with a certain Chunk.
/// </summary>
/// <param name="chunk">a Chunk</param>
public Anchor(Chunk chunk) : base(chunk) {}
/// <summary>
/// Constructs an Anchor with a certain string.
/// </summary>
/// <param name="str">a string</param>
public Anchor(string str) : base(str) {}
/// <summary>
/// Constructs an Anchor with a certain string
/// and a certain Font.
/// </summary>
/// <param name="str">a string</param>
/// <param name="font">a Font</param>
public Anchor(string str, Font font) : base(str, font) {}
/// <summary>
/// Constructs an Anchor with a certain Chunk
/// and a certain leading.
/// </summary>
/// <param name="leading">the leading</param>
/// <param name="chunk">a Chunk</param>
public Anchor(float leading, Chunk chunk) : base(leading, chunk) {}
/// <summary>
/// Constructs an Anchor with a certain leading
/// and a certain string.
/// </summary>
/// <param name="leading">the leading</param>
/// <param name="str">a string</param>
public Anchor(float leading, string str) : base(leading, str) {}
/// <summary>
/// Constructs an Anchor with a certain leading,
/// a certain string and a certain Font.
/// </summary>
/// <param name="leading">the leading</param>
/// <param name="str">a string</param>
/// <param name="font">a Font</param>
public Anchor(float leading, string str, Font font) : base(leading, str, font) {}
/**
* Constructs an <CODE>Anchor</CODE> with a certain <CODE>Phrase</CODE>.
*
* @param phrase a <CODE>Phrase</CODE>
*/
public Anchor(Phrase phrase) : base(phrase) {
if (phrase is Anchor) {
Anchor a = (Anchor) phrase;
Name = a.name;
Reference = a.reference;
}
}
// implementation of the Element-methods
/// <summary>
/// Processes the element by adding it (or the different parts) to an
/// <see cref="T:iTextSharp.text.IElementListener"/>
/// </summary>
/// <param name="listener">an IElementListener</param>
/// <returns>true if the element was processed successfully</returns>
public override bool Process(IElementListener listener)
{
try
{
bool localDestination = (reference != null && reference.StartsWith("#"));
bool notGotoOK = true;
foreach (Chunk chunk in this.Chunks)
{
if (name != null && notGotoOK && !chunk.IsEmpty())
{
chunk.SetLocalDestination(name);
notGotoOK = false;
}
if (localDestination)
{
chunk.SetLocalGoto(reference.Substring(1));
}
else if (reference != null)
chunk.SetAnchor(reference);
listener.Add(chunk);
}
return true;
}
catch (DocumentException)
{
return false;
}
}
/// <summary>
/// Gets all the chunks in this element.
/// </summary>
/// <value>an ArrayList</value>
public override ArrayList Chunks
{
get
{
ArrayList tmp = new ArrayList();
bool localDestination = (reference != null && reference.StartsWith("#"));
bool notGotoOK = true;
foreach (Chunk chunk in this)
{
if (name != null && notGotoOK && !chunk.IsEmpty())
{
chunk.SetLocalDestination(name);
notGotoOK = false;
}
if (localDestination)
{
chunk.SetLocalGoto(reference.Substring(1));
}
else if (reference != null)
{
chunk.SetAnchor(reference);
}
tmp.Add(chunk);
}
return tmp;
}
}
/// <summary>
/// Gets the type of the text element.
/// </summary>
/// <value>a type</value>
public override int Type
{
get
{
return Element.ANCHOR;
}
}
// methods
/// <summary>
/// Name of this Anchor.
/// </summary>
public string Name {
get {
return this.name;
}
set {
this.name = value;
}
}
// methods to retrieve information
/// <summary>
/// reference of this Anchor.
/// </summary>
public string Reference {
get {
return reference;
}
set {
this.reference = value;
}
}
/// <summary>
/// reference of this Anchor.
/// </summary>
/// <value>an Uri</value>
public Uri Url {
get {
try {
return new Uri(reference);
}
catch {
return null;
}
}
}
}
}