private void method_18()
{
this.method_27();
Class615 page = new Class615(1097010747);
this.method_19(page);
int pageSize = this.list_1.Count * 8;
page.StreamOffset = this.stream_0.Position;
int num = pageSize + Class998.smethod_0(pageSize);
page.Length = (long)num;
MemoryStream sectionStream = new MemoryStream();
Class889 class889 = Class889.Create((Stream)sectionStream, this.dxfVersion_0, this.encoding_0);
foreach (Class614 class614 in this.list_1)
{
if (class614 != null)
{
class889.vmethod_9(class614.PageNumber);
class889.vmethod_9((int)class614.Length);
}
}
this.method_21(page, sectionStream);
Class614 class614_1 = this.list_1[this.list_1.Count - 1];
this.class564_0.LastPageId = class614_1.PageNumber;
this.class564_0.LastPageEndOffset = (ulong)(class614_1.StreamOffset + (long)num - 256L);
this.class564_0.GapCount = 0U;
this.class564_0.PageCount = (uint)(this.list_1.Count - 1);
this.class564_0.PagesMapOffset = (ulong)page.StreamOffset;
}
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);
}
}
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_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 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);
}
public static void Write(Class889 byteStream, SummaryInfo summaryInfo)
{
byteStream.vmethod_19(summaryInfo.Title);
byteStream.vmethod_19(summaryInfo.Subject);
byteStream.vmethod_19(summaryInfo.Author);
byteStream.vmethod_19(summaryInfo.Keywords);
byteStream.vmethod_19(summaryInfo.Comments);
byteStream.vmethod_19(summaryInfo.LastSavedBy);
byteStream.vmethod_19(summaryInfo.RevisionNumber);
byteStream.vmethod_19(summaryInfo.HyperLinkBase);
byteStream.vmethod_25(summaryInfo.TotalEditingTime);
byteStream.vmethod_27(summaryInfo.CreationDateTime);
byteStream.vmethod_27(summaryInfo.ModifiedDateTime);
byteStream.vmethod_7((ushort)summaryInfo.Properties.Count);
foreach (SummaryInfo.Property property in summaryInfo.Properties)
{
byteStream.vmethod_19(property.Name);
byteStream.vmethod_19(property.Value);
}
byteStream.vmethod_9(0);
byteStream.vmethod_9(0);
}
private void method_11()
{
this.class617_7.MaxDecompressedPageSize = 128;
FileDependencyCollection dependencyCollection = new FileDependencyCollection();
if (dependencyCollection.Count > 1)
{
this.class617_7.MaxDecompressedPageSize = 128 * dependencyCollection.Count;
}
this.class617_7.Encrypted = 2;
MemoryStream memoryStream = new MemoryStream();
Class889 class889 = Class889.Create((Stream)memoryStream, this.dxfVersion_0, this.encoding_0);
List <string> stringList = new List <string>();
foreach (FileDependency.Key key in dependencyCollection.Keys)
{
if (!stringList.Contains(key.FeatureName))
{
stringList.Add(key.FeatureName);
}
}
class889.vmethod_9(stringList.Count);
foreach (string str in stringList)
{
class889.vmethod_22(str);
}
class889.vmethod_9(dependencyCollection.Count);
DateTime dateTime = new DateTime(1980, 1, 1);
foreach (FileDependency.Key key in dependencyCollection.Keys)
{
FileDependency fileDependency = dependencyCollection[key];
if (fileDependency.FeatureName == "Acad:Text")
{
string str = DxfTextStyle.smethod_2(Class1043.smethod_2(this.dxfModel_0.Filename), fileDependency.FullFilename);
if (!string.IsNullOrEmpty(str) && File.Exists(str))
{
FileInfo fileInfo = new FileInfo(str);
fileDependency.TimeStamp = fileInfo.LastWriteTime;
fileDependency.FileSize = (int)fileInfo.Length;
}
}
class889.vmethod_22(fileDependency.FullFilename);
class889.vmethod_22(fileDependency.FoundPath);
class889.vmethod_22(fileDependency.FingerPrintGuid);
class889.vmethod_22(fileDependency.VersionGuid);
class889.vmethod_9(stringList.IndexOf(fileDependency.FeatureName));
TimeSpan timeSpan = fileDependency.TimeStamp - dateTime;
class889.vmethod_9((int)timeSpan.TotalSeconds);
class889.vmethod_9(fileDependency.FileSize);
class889.vmethod_5(fileDependency.AffectsGraphics ? (short)1 : (short)0);
class889.vmethod_9(fileDependency.References.Count);
}
this.method_23(this.class617_7, memoryStream, false);
}
private void method_17()
{
MemoryStream sectionStream = new MemoryStream();
Class889 class889 = Class889.Create((Stream)sectionStream, this.dxfVersion_0, this.encoding_0);
class889.vmethod_9(this.list_0.Count);
class889.vmethod_9(2);
class889.vmethod_9(29696);
class889.vmethod_9(0);
class889.vmethod_9(this.list_0.Count);
foreach (Class617 class617 in this.list_0)
{
class889.vmethod_15(class617.SectionSize);
class889.vmethod_9(class617.PageCount);
class889.vmethod_9(class617.MaxDecompressedPageSize);
class889.vmethod_9(1);
class889.vmethod_9(class617.Compressed);
class889.vmethod_9(class617.SectionId);
class889.vmethod_9(class617.Encrypted);
byte[] buffer = new byte[64];
if (!string.IsNullOrEmpty(class617.Name))
{
byte[] bytes = Encodings.Ascii.GetBytes(class617.Name);
int num = Math.Min(bytes.Length, buffer.Length);
for (int index = 0; index < num; ++index)
{
buffer[index] = bytes[index];
}
}
sectionStream.Write(buffer, 0, buffer.Length);
foreach (Class616 page in class617.Pages)
{
if (page.PageNumber > 0)
{
class889.vmethod_9(page.PageNumber);
class889.vmethod_9(page.CompressedSize);
class889.vmethod_15(page.StartOffset);
}
}
}
Class615 page1 = this.method_20(1097007163, sectionStream);
int count = Class998.smethod_0((int)(this.stream_0.Position - page1.StreamOffset));
this.stream_0.Write(Class998.byte_0, 0, count);
page1.Length = this.stream_0.Position - page1.StreamOffset;
this.method_19(page1);
}
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);
}