public Image GetThumbnail(string name)
{
int num;
Image image2;
if (this.CatalogMap == null)
{
throw new ObjectDisposedException("ThumbsDb");
}
if (!this.CatalogMap.TryGetValue(name, out num))
{
return null;
}
CompoundStreamEntry entry = this.Thumbs.Root[GetReversedItemId(num)] as CompoundStreamEntry;
if (entry == null)
{
return null;
}
using (Stream stream = entry.OpenRead())
{
stream.Seek(12L, SeekOrigin.Begin);
using (Stream stream2 = new SubStream(stream))
{
using (Image image = Image.FromStream(stream2))
{
image2 = new Bitmap(image);
}
}
}
return image2;
}
private object ReadProperty(BinaryReader reader)
{
switch (((VarEnum) reader.ReadInt32()))
{
case VarEnum.VT_CF:
{
int num3 = reader.ReadInt32();
if ((reader.ReadInt32() == -1) && (reader.ReadInt32() == 3))
{
reader.BaseStream.Seek(8L, SeekOrigin.Current);
using (Stream stream = new SubStream(reader.BaseStream, FileAccess.Read, (long) (num3 - 0x10)))
{
return new Metafile(stream);
}
}
return null;
}
case VarEnum.VT_CLSID:
return new Guid(reader.ReadBytes(0x10));
case VarEnum.VT_FILETIME:
return DateTime.FromFileTime(reader.ReadInt64());
case VarEnum.VT_EMPTY:
return null;
case VarEnum.VT_NULL:
return DBNull.Value;
case VarEnum.VT_I2:
return reader.ReadInt16();
case VarEnum.VT_I4:
return reader.ReadInt32();
case VarEnum.VT_R4:
return reader.ReadSingle();
case VarEnum.VT_R8:
return reader.ReadDouble();
case VarEnum.VT_BSTR:
return Encoding.Unicode.GetString(reader.ReadBytes(reader.ReadInt32()));
case VarEnum.VT_BOOL:
return Convert.ToBoolean(reader.ReadInt16());
case VarEnum.VT_UI1:
return reader.ReadByte();
case VarEnum.VT_UI2:
return reader.ReadUInt16();
case VarEnum.VT_UI4:
return reader.ReadUInt32();
case VarEnum.VT_I8:
return reader.ReadInt64();
case VarEnum.VT_UI8:
return reader.ReadUInt64();
case VarEnum.VT_LPSTR:
{
byte[] array = reader.ReadBytes(reader.ReadInt32());
int index = Array.IndexOf<byte>(array, 0);
if (this.DefaultEncoding == null)
{
this.DefaultEncoding = Encoding.Default;
}
return this.DefaultEncoding.GetString(array, 0, (index < 0) ? array.Length : index);
}
case VarEnum.VT_LPWSTR:
{
byte[] sequense = reader.ReadBytes(reader.ReadInt32());
byte[] buffer3 = new byte[2];
int num2 = ByteArrayHelper.IndexOf(sequense, buffer3, sequense.Length);
return Encoding.Unicode.GetString(sequense, 0, (num2 < 0) ? sequense.Length : num2);
}
}
throw new InvalidDataException("Unsupported variant type");
}
private Image ReadThumbnail()
{
try
{
using (Stream stream = this._FileInfo.OpenRead())
{
stream.Position = this.ThumbnailStreamStart;
using (Stream stream2 = new SubStream(stream, (long) this.ThumbnailStreamSize))
{
using (Image image = Image.FromStream(stream2))
{
return new Bitmap(image);
}
}
}
}
catch (Exception exception)
{
PropertyProviderManager.ProviderTrace.TraceException(TraceEventType.Error, exception);
this.HasCapability &= ~PsdCapability.Thumbnail;
this._FileInfo = null;
base.ResetAvailableSet();
}
return null;
}
