/**
* Constructs a RtfInfoElement based on the given Meta object
*
* @param doc The RtfDocument this RtfInfoElement belongs to
* @param meta The Meta object this RtfInfoElement is based on
*/
public RtfInfoElement(RtfDocument doc, Meta meta)
: base(doc)
{
infoType = meta.Type;
content = meta.Content;
}
/**
* Writes a Metatag in the header.
*
* @param meta the element that has to be written
* @throws IOException
*/
protected void WriteHeader(Meta meta)
{
AddTabs(2);
WriteStart(HtmlTags.META);
switch (meta.Type) {
case Element.HEADER:
Write(HtmlTags.NAME, ((Header) meta).Name);
break;
case Element.SUBJECT:
Write(HtmlTags.NAME, HtmlTags.SUBJECT);
break;
case Element.KEYWORDS:
Write(HtmlTags.NAME, HtmlTags.KEYWORDS);
break;
case Element.AUTHOR:
Write(HtmlTags.NAME, HtmlTags.AUTHOR);
break;
}
Write(HtmlTags.CONTENT, HtmlEncoder.Encode(meta.Content));
WriteEnd();
}
/// <summary>
/// Constructs a Meta.
/// </summary>
/// <param name="tag">the tagname of the meta-information</param>
/// <param name="content">the content</param>
public Meta(string tag, string content)
{
this.type = Meta.GetType(tag);
this.content = new StringBuilder(content);
}
/* (non-Javadoc)
* @see com.lowagie.text.rtf.direct.RtfDestination#handleGroupEnd()
*/
public override bool HandleCloseGroup() {
if (this.text.Length > 0) {
Document doc = this.rtfParser.GetDocument();
if (doc != null) {
if (this.elementName.Equals("author")){
doc.AddAuthor(this.text);
}
if (this.elementName.Equals("title")){
doc.AddTitle(this.text);
}
if (this.elementName.Equals("subject")){
doc.AddSubject(this.text);
}
} else {
RtfDocument rtfDoc = this.rtfParser.GetRtfDocument();
if (rtfDoc != null) {
if (this.elementName.Equals("author")){
Meta meta = new Meta(this.elementName, this.text);
RtfInfoElement elem = new RtfInfoElement(rtfDoc, meta);
rtfDoc.GetDocumentHeader().AddInfoElement(elem);
}
if (this.elementName.Equals("title")){
Meta meta = new Meta(this.elementName, this.text);
RtfInfoElement elem = new RtfInfoElement(rtfDoc, meta);
rtfDoc.GetDocumentHeader().AddInfoElement(elem);
}
if (this.elementName.Equals("subject")){
Meta meta = new Meta(this.elementName, this.text);
RtfInfoElement elem = new RtfInfoElement(rtfDoc, meta);
rtfDoc.GetDocumentHeader().AddInfoElement(elem);
}
}
}
this.SetToDefaults();
}
return true;
}
/**
* Add a <code>Meta</code> element. It is written to the Inforamtion Group
* and merged with the main <code>MemoryStream</code> when the
* Document is closed.
*
* @param metaName The type of <code>Meta</code> element to be added
* @param meta The <code>Meta</code> element to be added
*
* Currently only the Meta Elements Author, Subject, Keywords, Title, Producer and CreationDate are supported.
*
* @throws IOException
*/
private void WriteMeta(byte[] metaName, Meta meta)
{
info.WriteByte(openGroup);
try {
info.WriteByte(escape);
info.Write(metaName, 0, metaName.Length);
info.WriteByte(delimiter);
if (meta.Type == Element.CREATIONDATE) {
WriteFormatedDateTime(meta.Content);
} else {
byte[] t = DocWriter.GetISOBytes(meta.Content);
info.Write(t, 0, t.Length);
}
} finally {
info.WriteByte(closeGroup);
}
}
