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);
}
}
public static void Write(
Class889 stream,
DxfModel model,
uint estimatedObjectCount,
uint objectsSectionStreamOffset)
{
stream.vmethod_9(0);
stream.vmethod_11(estimatedObjectCount);
if (model.Header.AcadVersion >= DxfVersion.Dxf15)
{
stream.vmethod_27(model.Header.UpdateUtcDateTime);
}
else
{
stream.vmethod_27(model.Header.UpdateDateTime);
}
stream.vmethod_11(objectsSectionStreamOffset);
stream.vmethod_1((byte)4);
stream.vmethod_11(50U);
stream.vmethod_11(0U);
stream.vmethod_11(100U);
stream.vmethod_11(0U);
stream.vmethod_11(512U);
stream.vmethod_11(0U);
stream.vmethod_11(uint.MaxValue);
stream.vmethod_11(0U);
}
private void method_11()
{
Class889 class889 = Class889.Create((Stream)this.class504_4.Stream, this.dxfVersion_0, this.encoding_0);
class889.vmethod_11(0U);
class889.vmethod_11(0U);
class889.vmethod_11(1U);
class889.vmethod_11(0U);
}
private void method_12()
{
MemoryStream memoryStream = new MemoryStream();
Class889 class889 = Class889.Create((Stream)memoryStream, this.dxfVersion_0, this.encoding_0);
class889.vmethod_11(0U);
class889.vmethod_11(0U);
class889.vmethod_11(0U);
this.method_23(this.class617_8, memoryStream, true);
}
private void method_25(Stream pageHeaderStream, Class617 section, Class616 page, int pageType)
{
Class889 class889 = Class889.Create(pageHeaderStream, this.dxfVersion_0, this.encoding_0);
class889.vmethod_9(pageType);
class889.vmethod_9(section.SectionId);
class889.vmethod_9(page.CompressedSize);
class889.vmethod_9(page.PageSize);
class889.vmethod_13((long)page.StartOffset);
class889.vmethod_11(page.HeaderChecksum);
class889.vmethod_11(page.DataChecksum);
}
public static void smethod_0(Class949 appInfo, Class889 byteStream)
{
byteStream.vmethod_11(appInfo.Unknown0);
byteStream.vmethod_19(appInfo.Name);
byteStream.vmethod_11(appInfo.Unknown1);
byteStream.vmethod_2(appInfo.VersionData, 0, appInfo.VersionData.Length);
byteStream.vmethod_19(appInfo.Version);
byteStream.vmethod_2(appInfo.CommentData, 0, appInfo.CommentData.Length);
byteStream.vmethod_19(appInfo.Comment);
byteStream.vmethod_2(appInfo.ProductData, 0, appInfo.ProductData.Length);
byteStream.vmethod_19(appInfo.Product);
}
public static void smethod_0(Class949 appInfo, Class889 byteStream)
{
byteStream.vmethod_19(appInfo.Name);
byteStream.vmethod_11(appInfo.Unknown0);
byteStream.vmethod_19("4001");
byteStream.vmethod_19(appInfo.Product);
byteStream.vmethod_19(appInfo.Version);
}
private void method_22(Class615 page, Stream sectionHeaderStream)
{
Class889 class889 = Class889.Create(sectionHeaderStream, this.dxfVersion_0, this.encoding_0);
class889.vmethod_9(page.SectionPageType);
class889.vmethod_9(page.DecompressedSize);
class889.vmethod_9(page.CompressedSize);
class889.vmethod_9(page.CompressionType);
class889.vmethod_11(page.Checksum);
}
private void method_2(MemoryStream fileHeaderDataStream)
{
Stream2 stream2 = new Stream2((Stream)fileHeaderDataStream, 0U);
Class889 class889 = Class889.Create((Stream)stream2, this.dxfVersion_0, this.encoding_0);
byte[] bytes = Class1045.encoding_0.GetBytes("AcFssFcAJMB");
stream2.Write(bytes, 0, 11);
stream2.WriteByte((byte)0);
class889.vmethod_9(0);
class889.vmethod_9(108);
class889.vmethod_9(4);
class889.vmethod_9(this.class564_0.GapsRootId);
class889.vmethod_9(this.class564_0.GapsLeftId);
class889.vmethod_9(this.class564_0.GapsRightId);
class889.vmethod_9(this.class564_0.GapsUnknown);
class889.vmethod_9(this.class564_0.LastPageId);
class889.vmethod_15(this.class564_0.LastPageEndOffset);
class889.vmethod_15(this.class564_0.Header2Offset);
class889.vmethod_11(this.class564_0.GapCount);
class889.vmethod_11(this.class564_0.PageCount);
class889.vmethod_9(32);
class889.vmethod_9(128);
class889.vmethod_9(64);
class889.vmethod_11(this.class564_0.PagesMapId);
class889.vmethod_15(this.class564_0.PagesMapOffset - 256UL);
class889.vmethod_11(this.class564_0.SectionsMapId);
class889.vmethod_11(this.class564_0.PagesMaxId);
class889.vmethod_11(this.class564_0.GapsMaxId);
long position = stream2.Position;
class889.vmethod_11(0U);
uint crc = stream2.Crc;
stream2.Position = position;
class889.vmethod_11(crc);
stream2.Flush();
this.method_3(fileHeaderDataStream);
}
