/// <summary>
/// Create an InputStream from the specified Document
/// </summary>
/// <param name="document">the Document to be read</param>
public POIFSDocumentReader(POIFSDocument document)
{
this._current_offset = 0;
this._document_size = document.Size;
this._closed = false;
this._tiny_buffer = null;
this._document = document;
}
/**
* Create an InputStream from the specified Document
*
* @param document the Document to be read
*/
public ODocumentInputStream(POIFSDocument document)
{
_current_offset = 0;
_marked_offset = 0;
_document_size = document.Size;
_closed = false;
_document = document;
_currentBlock = GetDataInputBlock(0);
}
/// <summary>
/// Create an InputStream from the specified DocumentEntry
/// </summary>
/// <param name="document">the DocumentEntry to be read</param>
public POIFSDocumentReader(DocumentEntry document)
{
this._current_offset = 0;
this._document_size = document.Size;
this._closed = false;
this._tiny_buffer = null;
if (!(document is DocumentNode))
{
throw new IOException("Cannot open internal document storage");
}
this._document = ((DocumentNode)document).Document;
}
/// <summary>
/// Create a new DocumentEntry; the data will be provided later
/// </summary>
/// <param name="name">the name of the new DocumentEntry</param>
/// <param name="size">the size of the new DocumentEntry</param>
/// <returns>the new DocumentEntry</returns>
public DocumentEntry CreateDocument(POIFSDocument document)
{
DocumentProperty property = document.DocumentProperty;
DocumentNode rval = new DocumentNode(property, this);
((DirectoryProperty)Property).AddChild(property);
_oFilesSystem.AddDocument(document);
_entries.Add(rval);
_byname.Add(property.Name, rval);
return(rval);
}
private void ProcessProperties(BlockList small_blocks,
BlockList big_blocks,
IEnumerator properties,
DirectoryNode dir,
int headerPropertiesStartAt)
{
while (properties.MoveNext())
{
Property property = ( Property )properties.Current;
String name = property.Name;
DirectoryNode parent = (dir == null)
? (( DirectoryNode )this.Root)
: dir;
if (property.IsDirectory)
{
DirectoryNode new_dir =
( DirectoryNode )parent.CreateDirectory(name);
new_dir.StorageClsid = property.StorageClsid;
ProcessProperties(
small_blocks, big_blocks,
((DirectoryProperty)property).Children, new_dir, headerPropertiesStartAt);
}
else
{
int startBlock = property.StartBlock;
int size = property.Size;
POIFSDocument document = null;
if (property.ShouldUseSmallBlocks)
{
document =
new POIFSDocument(name, small_blocks
.FetchBlocks(startBlock, headerPropertiesStartAt), size);
}
else
{
document =
new POIFSDocument(name,
big_blocks.FetchBlocks(startBlock, headerPropertiesStartAt),
size);
}
parent.CreateDocument(document);
}
}
}
/**
* Create an InputStream from the specified DocumentEntry
*
* @param document the DocumentEntry to be read
*
* @exception IOException if the DocumentEntry cannot be opened (like, maybe it has
* been deleted?)
*/
public ODocumentInputStream(DocumentEntry document)
{
if (!(document is DocumentNode))
{
throw new IOException("Cannot open internal document storage");
}
DocumentNode documentNode = (DocumentNode)document;
if (documentNode.Document == null)
{
throw new IOException("Cannot open internal document storage");
}
_current_offset = 0;
_marked_offset = 0;
_document_size = document.Size;
_closed = false;
_document = documentNode.Document;
_currentBlock = GetDataInputBlock(0);
}
/// <summary>
/// open a document in the root entry's list of entries
/// </summary>
/// <param name="documentName">the name of the document to be opened</param>
/// <returns>a newly opened POIFSDocumentReader</returns>
//public DocumentReader CreatePOIFSDocumentReader(
// String documentName)
//{
// return this.Root.CreatePOIFSDocumentReader(documentName);
//}
/// <summary>
/// Add a new POIFSDocument
/// </summary>
/// <param name="document">the POIFSDocument being Added</param>
public void AddDocument(POIFSDocument document)
{
_documents.Add(document);
_property_table.AddProperty(document.DocumentProperty);
}
/**
* create a DocumentNode. This method Is not public by design; it
* Is intended strictly for the internal use of this package
*
* @param property the DocumentProperty for this DocumentEntry
* @param parent the parent of this entry
*/
public DocumentNode(DocumentProperty property, DirectoryNode parent) : base(property, parent)
{
_document = property.Document;
}
/**
* Create an InputStream from the specified Document
*
* @param document the Document to be read
*/
public DocumentInputStream(POIFSDocument document)
{
delegate1 = new ODocumentInputStream(document);
}