/// <summary>
/// Initialize a new document link
/// </summary>
public void CreateDocumentLink()
{
_range = new CellRangeAddress(0, 0, 0, 0);
_guid = STD_MONIKER;
_linkOpts = HLINK_LABEL | HLINK_PLACE;
Label = "";
_moniker = FILE_MONIKER;
Address = "";
TextMark = "";
}
/// <summary>
/// Initialize a new url link
/// </summary>
public void CreateUrlLink()
{
_range = new CellRangeAddress(0, 0, 0, 0);
_guid = STD_MONIKER;
_linkOpts = HLINK_URL | HLINK_ABS | HLINK_LABEL;
Label = "";
_moniker = URL_MONIKER;
Address = "";
_uninterpretedTail = URL_uninterpretedTail;
}
/// <summary>
/// Initialize a new file link
/// </summary>
public void CreateFileLink()
{
_range = new CellRangeAddress(0, 0, 0, 0);
_guid = STD_MONIKER;
_linkOpts = HLINK_URL | HLINK_LABEL;
_fileOpts = 0;
Label = "";
_moniker = FILE_MONIKER;
Address= null;
ShortFilename = "";
_uninterpretedTail = FILE_uninterpretedTail;
}
/**
* Read hyperlink from input stream
*
* @param in the stream to Read from
*/
public HyperlinkRecord(RecordInputStream in1)
{
_range = new CellRangeAddress(in1);
// 16-byte GUID
_guid = new GUID(in1);
/*
* streamVersion (4 bytes): An unsigned integer that specifies the version number
* of the serialization implementation used to save this structure. This value MUST equal 2.
*/
int streamVersion = in1.ReadInt();
if (streamVersion != 0x00000002)
{
throw new RecordFormatException("Stream Version must be 0x2 but found " + streamVersion);
}
_linkOpts = in1.ReadInt();
if ((_linkOpts & HLINK_LABEL) != 0)
{
int label_len = in1.ReadInt();
_label = in1.ReadUnicodeLEString(label_len);
}
if ((_linkOpts & HLINK_TARGET_FRAME) != 0)
{
int len = in1.ReadInt();
_targetFrame = in1.ReadUnicodeLEString(len);
}
if ((_linkOpts & HLINK_URL) != 0 && (_linkOpts & HLINK_UNC_PATH) != 0)
{
_moniker = null;
int nChars = in1.ReadInt();
_address = in1.ReadUnicodeLEString(nChars);
}
if ((_linkOpts & HLINK_URL) != 0 && (_linkOpts & HLINK_UNC_PATH) == 0)
{
_moniker = new GUID(in1);
if (URL_MONIKER.Equals(_moniker))
{
int length = in1.ReadInt();
/*
* The value of <code>length<code> be either the byte size of the url field
* (including the terminating NULL character) or the byte size of the url field plus 24.
* If the value of this field is set to the byte size of the url field,
* then the tail bytes fields are not present.
*/
int remaining = in1.Remaining;
if (length == remaining)
{
int nChars = length / 2;
_address = in1.ReadUnicodeLEString(nChars);
}
else
{
int nChars = (length - TAIL_SIZE) / 2;
_address = in1.ReadUnicodeLEString(nChars);
/*
* TODO: make sense of the remaining bytes
* According to the spec they consist of:
* 1. 16-byte GUID: This field MUST equal
* {0xF4815879, 0x1D3B, 0x487F, 0xAF, 0x2C, 0x82, 0x5D, 0xC4, 0x85, 0x27, 0x63}
* 2. Serial version, this field MUST equal 0 if present.
* 3. URI Flags
*/
_uninterpretedTail = ReadTail(URL_uninterpretedTail, in1);
}
}
else if (FILE_MONIKER.Equals(_moniker))
{
_fileOpts = in1.ReadShort();
int len = in1.ReadInt();
_shortFilename = StringUtil.ReadCompressedUnicode(in1, len);
_uninterpretedTail = ReadTail(FILE_uninterpretedTail, in1);
int size = in1.ReadInt();
if (size > 0)
{
int charDataSize = in1.ReadInt();
//From the spec: An optional unsigned integer that MUST be 3 if present
int optFlags = in1.ReadUShort();
if (optFlags != 0x0003)
{
throw new RecordFormatException("Expected 0x3 but found " + optFlags);
}
_address = StringUtil.ReadUnicodeLE(in1, charDataSize / 2);
}
else
{
_address = null;
}
}
else if (STD_MONIKER.Equals(_moniker))
{
_fileOpts = in1.ReadShort();
int len = in1.ReadInt();
byte[] path_bytes = new byte[len];
in1.ReadFully(path_bytes);
_address = Encoding.UTF8.GetString(path_bytes);
}
}
if ((_linkOpts & HLINK_PLACE) != 0)
{
int len = in1.ReadInt();
_textMark = in1.ReadUnicodeLEString(len);
}
if (in1.Remaining > 0)
{
Console.WriteLine(HexDump.ToHex(in1.ReadRemainder()));
}
}