/// <summary>
/// Initializes this {@link PropertySet} instance from a byte
/// array. The method assumes that it has been checked alReady that
/// the byte array indeed represents a property Set stream. It does
/// no more checks on its own.
/// </summary>
/// <param name="src">Byte array containing the property Set stream</param>
/// <param name="offset">The property Set stream starts at this offset</param>
/// <param name="Length">Length of the property Set stream.</param>
private void init(byte[] src, int offset, int Length)
{
/* FIXME (3): Ensure that at most "Length" bytes are Read. */
/*
* Read the stream's header fields.
*/
int o = offset;
byteOrder = LittleEndian.GetUShort(src, o);
o += LittleEndianConsts.SHORT_SIZE;
format = LittleEndian.GetUShort(src, o);
o += LittleEndianConsts.SHORT_SIZE;
osVersion = (int)LittleEndian.GetUInt(src, o);
o += LittleEndianConsts.INT_SIZE;
classID = new ClassID(src, o);
o += ClassID.LENGTH;
int sectionCount = LittleEndian.GetInt(src, o);
o += LittleEndianConsts.INT_SIZE;
if (sectionCount < 0)
throw new HPSFRuntimeException("Section count " + sectionCount +
" is negative.");
/*
* Read the sections, which are following the header. They
* start with an array of section descriptions. Each one
* consists of a format ID telling what the section Contains
* and an offset telling how many bytes from the start of the
* stream the section begins.
*/
/*
* Most property Sets have only one section. The Document
* Summary Information stream has 2. Everything else is a rare
* exception and is no longer fostered by Microsoft.
*/
sections = new ArrayList(sectionCount);
/*
* Loop over the section descriptor array. Each descriptor
* consists of a ClassID and a DWord, and we have To increment
* "offset" accordingly.
*/
for (int i = 0; i < sectionCount; i++)
{
Section s = new Section(src, o);
o += ClassID.Length + LittleEndianConsts.INT_SIZE;
sections.Add(s);
}
}
/// <summary>
/// Adds a section To this property set.
/// </summary>
/// <param name="section">The {@link Section} To Add. It will be Appended
/// after any sections that are alReady present in the property Set
/// and thus become the last section.</param>
public override void AddSection(Section section)
{
delegate1.AddSection(section);
}
/// <summary>
/// Adds a section To this property Set.
/// </summary>
/// <param name="section">section The {@link Section} To Add. It will be Appended
/// after any sections that are alReady present in the property Set
/// and thus become the last section.</param>
public virtual void AddSection(Section section)
{
if (sections == null)
sections = new ArrayList();
sections.Add(section);
}
/// <summary>
/// Constructs a <c>MutableSection</c> by doing a deep copy of an
/// existing <c>Section</c>. All nested <c>Property</c>
/// instances, will be their mutable counterparts in the new
/// <c>MutableSection</c>.
/// </summary>
/// <param name="s">The section Set To copy</param>
public MutableSection(Section s)
{
SetFormatID(s.FormatID);
Property[] pa = s.Properties;
MutableProperty[] mpa = new MutableProperty[pa.Length];
for (int i = 0; i < pa.Length; i++)
mpa[i] = new MutableProperty(pa[i]);
SetProperties(mpa);
this.Dictionary=(s.Dictionary);
}
