private void method_1()
{
Class889 class889 = Class889.Create(this.stream_0, this.dxfVersion_0, this.encoding_0);
this.class564_0.Header2Offset = (ulong)this.stream_0.Position;
MemoryStream fileHeaderDataStream = new MemoryStream();
this.method_2(fileHeaderDataStream);
this.stream_0.Write(fileHeaderDataStream.GetBuffer(), 0, (int)fileHeaderDataStream.Length);
this.stream_0.Position = 0L;
this.stream_0.Write(Encodings.Ascii.GetBytes(this.dxfModel_0.Header.AcadVersionString), 0, 6);
this.stream_0.Write(new byte[5], 0, 5);
if (this.dxfModel_0.Header.AcadVersion == DxfVersion.Dxf18 && this.dxfModel_0.Header.AcadMaintenanceVersion == 1)
{
throw new DxfException("Header.AcadMaintenanceVersion may not be 1 for R18 files.");
}
this.stream_0.WriteByte((byte)this.dxfModel_0.Header.AcadMaintenanceVersion);
this.stream_0.WriteByte((byte)3);
class889.vmethod_11((uint)this.class617_5.Pages[0].StreamOffset + 32U);
this.stream_0.WriteByte((byte)Class885.smethod_3(DxfVersion.Dxf27));
this.stream_0.WriteByte((byte)8);
ushort num = Class952.smethod_1(this.dxfModel_0.Header.DrawingCodePage);
class889.vmethod_7(num);
this.stream_0.Write(new byte[3], 0, 3);
class889.vmethod_9((int)this.dxfModel_0.SecurityFlags);
class889.vmethod_9(0);
class889.vmethod_11((uint)this.class617_1.Pages[0].StreamOffset + 32U);
class889.vmethod_11(0U);
class889.vmethod_9(128);
class889.vmethod_11((uint)this.class617_6.Pages[0].StreamOffset + 32U);
this.stream_0.Write(new byte[80], 0, 80);
this.stream_0.Write(fileHeaderDataStream.GetBuffer(), 0, (int)fileHeaderDataStream.Length);
this.stream_0.Write(Class998.byte_0, 236, 20);
}
private void method_2()
{
Class889 class889 = Class889.Create(this.stream_0, this.dxfVersion_0, this.encoding_0);
this.stream_0.Position = 0L;
this.stream_0.Write(Encodings.Ascii.GetBytes(this.dxfModel_0.Header.AcadVersionString), 0, 6);
this.stream_0.Write(new byte[5], 0, 5);
int maintenanceVersion = this.dxfModel_0.Header.AcadMaintenanceVersion;
this.stream_0.WriteByte((byte)this.dxfModel_0.Header.AcadMaintenanceVersion);
this.stream_0.WriteByte((byte)3);
class889.vmethod_11((uint)this.class504_2.Pages[0].StreamOffset + 1152U);
this.stream_0.WriteByte((byte)Class885.smethod_3(DxfVersion.Dxf27));
this.stream_0.WriteByte((byte)8);
ushort num = Class952.smethod_1(this.dxfModel_0.Header.DrawingCodePage);
class889.vmethod_7(num);
this.stream_0.Write(new byte[3], 0, 3);
class889.vmethod_9((int)this.dxfModel_0.SecurityFlags);
class889.vmethod_9(0);
class889.vmethod_11((uint)this.class504_3.Pages[0].StreamOffset + 1152U);
class889.vmethod_11(0U);
class889.vmethod_9(128);
class889.vmethod_11((uint)this.class504_1.Pages[0].StreamOffset + 1152U);
for (int index = 0; index < 80; ++index)
{
this.stream_0.WriteByte((byte)0);
}
}
protected Class724(Stream stream, Encoding encoding, DxfVersion version)
{
this.stream_0 = stream;
this.encoding_0 = encoding;
this.dxfVersion_0 = version;
this.int_1 = (int)Class952.smethod_1((DrawingCodePage)encoding.CodePage);
}
private void method_0()
{
this.interface29_0.imethod_33(this.list_0[0].Position);
this.interface29_0.imethod_12(Encodings.Ascii.GetBytes(this.dxfHeader_0.AcadVersionString));
this.interface29_0.imethod_11((byte)0);
this.interface29_0.imethod_11((byte)0);
this.interface29_0.imethod_11((byte)0);
this.interface29_0.imethod_11((byte)0);
this.interface29_0.imethod_11((byte)0);
this.interface29_0.imethod_11((byte)this.dxfHeader_0.AcadMaintenanceVersion);
this.interface29_0.imethod_11((byte)1);
this.interface29_0.imethod_32((short)1559);
this.interface29_0.imethod_18((short)Class952.smethod_1(this.dxfHeader_0.DrawingCodePage));
List <Class723> class723List = new List <Class723>();
foreach (Class723 class723 in this.list_0)
{
if (class723.SectionId.HasValue)
{
class723List.Add(class723);
}
}
class723List.Sort();
this.interface29_0.imethod_32((short)class723List.Count);
foreach (Class723 class723 in class723List)
{
this.interface29_0.imethod_11((byte)class723.SectionId.Value);
this.interface29_0.imethod_33(class723.Position);
this.interface29_0.imethod_33((int)class723.Size);
}
this.interface29_0.imethod_33(14);
this.method_1((byte)0, this.dxfHeader_0.HandleSeed);
this.method_1((byte)1, this.dxfModel_0.BlockRecordTable.Handle);
this.method_1((byte)2, this.dxfModel_0.LayerTable.Handle);
this.method_1((byte)3, this.dxfModel_0.TextStyleTable.Handle);
this.method_1((byte)4, this.dxfModel_0.LineTypeTable.Handle);
this.method_1((byte)5, this.dxfModel_0.ViewTable.Handle);
this.method_1((byte)6, this.dxfModel_0.UcsTable.Handle);
this.method_1((byte)7, this.dxfModel_0.VPortTable.Handle);
this.method_1((byte)8, this.dxfModel_0.AppIdTable.Handle);
this.method_1((byte)9, this.dxfModel_0.DimStyleTable.Handle);
this.method_1((byte)10, this.dxfModel_0.ViewportEntityHeaderTable.Handle);
this.method_1((byte)11, this.dxfModel_0.DictionaryRoot.Handle);
this.method_1((byte)12, this.dxfModel_0.DefaultMLineStyle.Handle);
this.method_1((byte)13, this.dxfModel_0.DictionaryAcadGroup.Handle);
this.interface29_0.Flush();
}
public override string imethod_30()
{
int length = (int)this.imethod_45();
int dwgCodePage = (int)this.imethod_18();
string empty;
if (length == 0)
{
empty = string.Empty;
}
else
{
byte[] bytes = this.imethod_19(length);
empty = Class952.smethod_0(dwgCodePage).GetString(bytes, 0, bytes.Length);
}
return(empty);
}
private void method_12()
{
int sectionStartPosition1 = (int)Class653.smethod_0(this.int_0);
int num1 = sectionStartPosition1 + (int)this.memoryStream_0.Length;
int sectionStartPosition2 = num1 + (int)this.memoryStream_4.Length;
int sectionStartPosition3 = sectionStartPosition2 + (int)this.memoryStream_1.Length;
int sectionStartPosition4 = sectionStartPosition3 + (int)this.memoryStream_2.Length + (int)this.memoryStream_3.Length + (int)this.memoryStream_5.Length;
int sectionStartPosition5 = sectionStartPosition4 + (int)this.memoryStream_6.Length + (int)this.memoryStream_7.Length;
MemoryStream memoryStream = new MemoryStream();
Interface29 streamWriter = Class724.Create(this.dxfVersion_0, (Stream)memoryStream, Encodings.GetEncoding((int)this.dxfModel_0.Header.DrawingCodePage));
streamWriter.imethod_13(Encodings.Ascii.GetBytes(this.dxfModel_0.Header.AcadVersionString), 0, 6);
Interface29 nterface29 = streamWriter;
byte[] numArray = new byte[7];
numArray[5] = (byte)15;
numArray[6] = (byte)1;
byte[] bytes = numArray;
nterface29.imethod_12(bytes);
streamWriter.imethod_19(num1);
streamWriter.imethod_11((byte)27);
streamWriter.imethod_11((byte)25);
int num2 = (int)Class952.smethod_1(this.dxfModel_0.Header.DrawingCodePage);
streamWriter.imethod_13(LittleEndianBitConverter.GetBytes((short)num2), 0, 2);
streamWriter.imethod_13(LittleEndianBitConverter.GetBytes(this.int_0), 0, 4);
long position = this.stream_0.Position;
this.method_13(streamWriter, (byte)0, sectionStartPosition2, (int)this.memoryStream_1.Length);
this.method_13(streamWriter, (byte)1, sectionStartPosition3, (int)this.memoryStream_2.Length);
this.method_13(streamWriter, (byte)2, sectionStartPosition4, (int)this.memoryStream_6.Length);
this.method_13(streamWriter, (byte)3, 0, 0);
this.method_13(streamWriter, (byte)4, sectionStartPosition5, (int)this.memoryStream_9.Length);
this.method_13(streamWriter, (byte)5, sectionStartPosition1, (int)this.memoryStream_0.Length);
streamWriter.Flush();
ushort num3 = Stream1.smethod_1((ushort)49345, memoryStream.GetBuffer(), 0L, memoryStream.Length);
streamWriter.imethod_18((short)num3);
streamWriter.imethod_13(Class800.byte_4, 0, Class800.byte_4.Length);
this.stream_0.Write(memoryStream.GetBuffer(), 0, (int)memoryStream.Length);
}