using System;
using System.Collections;
using System.Globalization;
using System.util;
using iTextSharp.text;
using iTextSharp.text.xml;
using iTextSharp.text.pdf;
using iTextSharp.text.factories;
/*
* $Id: ITextmyHtmlHandler.cs,v 1.9 2008/05/13 11:25:15 psoares33 Exp $
*
*
* Copyright 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 '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.html {
/**
* The Tags-class maps several XHTML-tags to iText-objects.
*/
public class ITextmyHtmlHandler : ITextHandler {
/** These are the properties of the body section. */
private Properties bodyAttributes = new Properties();
/** This is the status of the table border. */
private bool tableBorder = false;
/**
* Constructs a new SAXiTextHandler that will translate all the events
* triggered by the parser to actions on the Document-object.
*
* @param document this is the document on which events must be triggered
*/
public ITextmyHtmlHandler(IDocListener document) : base(document, new HtmlTagMap()) {
}
public ITextmyHtmlHandler(IDocListener document, BaseFont bf) : base(document, new HtmlTagMap(), bf) {
}
/**
* Constructs a new SAXiTextHandler that will translate all the events
* triggered by the parser to actions on the Document-object.
*
* @param document this is the document on which events must be triggered
* @param htmlTags a tagmap translating HTML tags to iText tags
*/
public ITextmyHtmlHandler(IDocListener document, Hashtable htmlTags) : base(document, htmlTags) {
}
/**
* This method gets called when a start tag is encountered.
*
* @param uri the Uniform Resource Identifier
* @param lname the local name (without prefix), or the empty string if Namespace processing is not being performed.
* @param name the name of the tag that is encountered
* @param attrs the list of attributes
*/
public override void StartElement(String uri, String lname, String name, Hashtable attrs) {
//System.err.Println("Start: " + name);
// super.handleStartingTags is replaced with handleStartingTags
// suggestion by Vu Ngoc Tan/Hop
name = name.ToLower(CultureInfo.InvariantCulture);
if (HtmlTagMap.IsHtml(name)) {
// we do nothing
return;
}
if (HtmlTagMap.IsHead(name)) {
// we do nothing
return;
}
if (HtmlTagMap.IsTitle(name)) {
// we do nothing
return;
}
if (HtmlTagMap.IsMeta(name)) {
// we look if we can change the body attributes
String meta = null;
String content = null;
if (attrs != null) {
foreach (String attribute in attrs.Keys) {
if (Util.EqualsIgnoreCase(attribute, HtmlTags.CONTENT))
content = (String)attrs[attribute];
else if (Util.EqualsIgnoreCase(attribute, HtmlTags.NAME))
meta = (String)attrs[attribute];
}
}
if (meta != null && content != null) {
bodyAttributes.Add(meta, content);
}
return;
}
if (HtmlTagMap.IsLink(name)) {
// we do nothing for the moment, in a later version we could extract the style sheet
return;
}
if (HtmlTagMap.IsBody(name)) {
// maybe we could extract some info about the document: color, margins,...
// but that's for a later version...
XmlPeer peer = new XmlPeer(ElementTags.ITEXT, name);
peer.AddAlias(ElementTags.TOP, HtmlTags.TOPMARGIN);
peer.AddAlias(ElementTags.BOTTOM, HtmlTags.BOTTOMMARGIN);
peer.AddAlias(ElementTags.RIGHT, HtmlTags.RIGHTMARGIN);
peer.AddAlias(ElementTags.LEFT, HtmlTags.LEFTMARGIN);
bodyAttributes.AddAll(peer.GetAttributes(attrs));
HandleStartingTags(peer.Tag, bodyAttributes);
return;
}
if (myTags.ContainsKey(name)) {
XmlPeer peer = (XmlPeer) myTags[name];
if (ElementTags.TABLE.Equals(peer.Tag) || ElementTags.CELL.Equals(peer.Tag)) {
Properties p = peer.GetAttributes(attrs);
String value;
if (ElementTags.TABLE.Equals(peer.Tag) && (value = p[ElementTags.BORDERWIDTH]) != null) {
if (float.Parse(value, System.Globalization.NumberFormatInfo.InvariantInfo) > 0) {
tableBorder = true;
}
}
if (tableBorder) {
p.Add(ElementTags.LEFT, "true");
p.Add(ElementTags.RIGHT, "true");
p.Add(ElementTags.TOP, "true");
p.Add(ElementTags.BOTTOM, "true");
}
HandleStartingTags(peer.Tag, p);
return;
}
HandleStartingTags(peer.Tag, peer.GetAttributes(attrs));
return;
}
Properties attributes = new Properties();
if (attrs != null) {
foreach (String attribute in attrs.Keys) {
attributes.Add(attribute.ToLower(CultureInfo.InvariantCulture), ((String)attrs[attribute]).ToLower(CultureInfo.InvariantCulture));
}
}
HandleStartingTags(name, attributes);
}
/**
* This method gets called when an end tag is encountered.
*
* @param uri the Uniform Resource Identifier
* @param lname the local name (without prefix), or the empty string if Namespace processing is not being performed.
* @param name the name of the tag that ends
*/
public override void EndElement(String uri, String lname, String name) {
//System.err.Println("End: " + name);
name = name.ToLower(CultureInfo.InvariantCulture);
if (ElementTags.PARAGRAPH.Equals(name)) {
document.Add((IElement) stack.Pop());
return;
}
if (HtmlTagMap.IsHead(name)) {
// we do nothing
return;
}
if (HtmlTagMap.IsTitle(name)) {
if (currentChunk != null) {
bodyAttributes.Add(ElementTags.TITLE, currentChunk.Content);
}
return;
}
if (HtmlTagMap.IsMeta(name)) {
// we do nothing
return;
}
if (HtmlTagMap.IsLink(name)) {
// we do nothing
return;
}
if (HtmlTagMap.IsBody(name)) {
// we do nothing
return;
}
if (myTags.ContainsKey(name)) {
XmlPeer peer = (XmlPeer) myTags[name];
if (ElementTags.TABLE.Equals(peer.Tag)) {
tableBorder = false;
}
base.HandleEndingTags(peer.Tag);
return;
}
// super.handleEndingTags is replaced with handleEndingTags
// suggestion by Ken Auer
HandleEndingTags(name);
}
}
}