internal static DxfClassesSection ClassesSectionFromBuffer(DxfCodePairBufferReader buffer, DxfAcadVersion version)
{
var section = new DxfClassesSection();
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (DxfCodePair.IsSectionEnd(pair))
{
// done reading classes
buffer.Advance(); // swallow (0, ENDSEC)
break;
}
if (pair.Code != 0)
{
throw new DxfReadException("Expected new class.", pair);
}
var cls = DxfClass.FromBuffer(buffer, version);
if (cls != null)
{
section.Classes.Add(cls);
}
}
return section;
}
internal static DxfObjectsSection ObjectsSectionFromBuffer(DxfCodePairBufferReader buffer)
{
var objects = new List <DxfObject>();
objects.Clear();
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (DxfCodePair.IsSectionEnd(pair))
{
// done reading objects
buffer.Advance(); // swallow (0, ENDSEC)
break;
}
if (pair.Code != 0)
{
throw new DxfReadException("Expected new object.", pair);
}
var obj = DxfObject.FromBuffer(buffer);
if (obj != null)
{
objects.Add(obj);
}
}
var section = new DxfObjectsSection();
section.Objects.AddRange(objects);
return(section);
}
internal static DxfHeaderSection HeaderSectionFromBuffer(DxfCodePairBufferReader buffer)
{
var section = new DxfHeaderSection();
string keyName = null;
Func <short, bool> shortToBool = value => value != 0;
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
buffer.Advance();
if (DxfCodePair.IsSectionEnd(pair))
{
// done reading settings
break;
}
if (pair.Code == 9)
{
// what setting to get
keyName = pair.StringValue;
}
else
{
section.Header.SetHeaderVariable(keyName, pair);
if (string.Compare(keyName, "$ACADVER", StringComparison.OrdinalIgnoreCase) == 0 && section.Header.Version >= DxfAcadVersion.R2007)
{
// R2007 and up should switch to a UTF8 reader
buffer.SetUtf8Reader();
}
}
}
return(section);
}
internal static DxfHeaderSection HeaderSectionFromBuffer(DxfCodePairBufferReader buffer)
{
var section = new DxfHeaderSection();
string keyName = null;
Func <short, bool> shortToBool = value => value != 0;
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
buffer.Advance();
if (DxfCodePair.IsSectionEnd(pair))
{
// done reading settings
break;
}
if (pair.Code == 9)
{
// what setting to get
keyName = pair.StringValue;
}
else
{
section.Header.SetHeaderVariable(keyName, pair);
}
}
return(section);
}
internal static DxfEntitiesSection EntitiesSectionFromBuffer(DxfCodePairBufferReader buffer)
{
var entities = new List <DxfEntity>();
entities.Clear();
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (DxfCodePair.IsSectionEnd(pair))
{
// done reading entities
buffer.Advance(); // swallow (0, ENDSEC)
break;
}
if (pair.Code != 0)
{
throw new DxfReadException("Expected new entity.", pair);
}
var entity = DxfEntity.FromBuffer(buffer);
if (entity != null)
{
entities.Add(entity);
}
}
var section = new DxfEntitiesSection();
var collected = GatherEntities(entities);
section.Entities.AddRange(collected);
return(section);
}
internal virtual DxfObject PopulateFromBuffer(DxfCodePairBufferReader buffer)
{
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (pair.Code == 0)
{
break;
}
while (this.TrySetExtensionData(pair, buffer))
{
pair = buffer.Peek();
}
if (pair.Code == 0)
{
break;
}
if (!TrySetPair(pair))
{
ExcessCodePairs.Add(pair);
}
buffer.Advance();
}
return(PostParse());
}
internal static DxfThumbnailImageSection ThumbnailImageSectionFromBuffer(DxfCodePairBufferReader buffer)
{
if (buffer.ItemsRemain)
{
var lengthPair = buffer.Peek();
buffer.Advance();
if (lengthPair.Code != 90)
{
return null;
}
var length = lengthPair.IntegerValue;
var lines = new List<string>();
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
buffer.Advance();
if (DxfCodePair.IsSectionEnd(pair))
{
break;
}
Debug.Assert(pair.Code == 310);
lines.Add(pair.StringValue);
}
var section = new DxfThumbnailImageSection();
section.RawData = DxfCommonConverters.HexBytes(string.Join(string.Empty, lines));
return section;
}
return null;
}
internal override DxfObject PopulateFromBuffer(DxfCodePairBufferReader buffer)
{
bool readingData = false;
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (pair.Code == 0)
{
break;
}
if (readingData)
{
DataPairs.Add(pair);
}
else
{
if (pair.Code == 280)
{
DuplicateRecordHandling = (DxfDictionaryDuplicateRecordHandling)pair.ShortValue;
buffer.Advance();
readingData = true;
continue;
}
if (base.TrySetPair(pair))
{
buffer.Advance();
continue;
}
if (this.TrySetExtensionData(pair, buffer))
{
continue;
}
if (pair.Code == 100)
{
Debug.Assert(pair.StringValue == "AcDbXrecord");
buffer.Advance();
continue;
}
else if (pair.Code == 5 || pair.Code == 105)
{
// these codes aren't allowed here
ExcessCodePairs.Add(pair);
}
else
{
DataPairs.Add(pair);
readingData = true;
}
}
buffer.Advance();
}
return(PostParse());
}
internal static DxfEntitiesSection EntitiesSectionFromBuffer(DxfCodePairBufferReader buffer)
{
var entities = new List<DxfEntity>();
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (DxfCodePair.IsSectionEnd(pair))
{
// done reading entities
buffer.Advance(); // swallow (0, ENDSEC)
break;
}
if (pair.Code != 0)
{
throw new DxfReadException("Expected new entity.", pair);
}
var entity = DxfEntity.FromBuffer(buffer);
if (entity != null)
{
entities.Add(entity);
}
}
var section = new DxfEntitiesSection();
var collected = GatherEntities(entities);
section.Entities.AddRange(collected);
return section;
}
internal static DxfClassesSection ClassesSectionFromBuffer(DxfCodePairBufferReader buffer, DxfAcadVersion version)
{
var section = new DxfClassesSection();
section.Clear();
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (DxfCodePair.IsSectionEnd(pair))
{
// done reading classes
buffer.Advance(); // swallow (0, ENDSEC)
break;
}
if (pair.Code != 0)
{
throw new DxfReadException("Expected new class.", pair);
}
var cls = DxfClass.FromBuffer(buffer, version);
if (cls != null)
{
section.Classes.Add(cls);
}
}
return(section);
}
internal static DxfBlocksSection BlocksSectionFromBuffer(DxfCodePairBufferReader buffer, DxfAcadVersion version)
{
var section = new DxfBlocksSection();
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (DxfCodePair.IsSectionStart(pair))
{
// done reading blocks, onto the next section
break;
}
else if (DxfCodePair.IsSectionEnd(pair))
{
// done reading blocks
buffer.Advance(); // swallow (0, ENDSEC)
break;
}
if (pair.Code != 0)
{
throw new DxfReadException("Expected new block.", pair);
}
buffer.Advance(); // swallow (0, CLASS)
var block = DxfBlock.FromBuffer(buffer, version);
if (block != null)
{
section.Blocks.Add(block);
}
}
return section;
}
internal static DxfBlocksSection BlocksSectionFromBuffer(DxfCodePairBufferReader buffer)
{
var section = new DxfBlocksSection();
section.Clear();
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (DxfCodePair.IsSectionStart(pair))
{
// done reading blocks, onto the next section
break;
}
else if (DxfCodePair.IsSectionEnd(pair))
{
// done reading blocks
buffer.Advance(); // swallow (0, ENDSEC)
break;
}
if (pair.Code != 0)
{
throw new DxfReadException("Expected new block.", pair);
}
buffer.Advance(); // swallow (0, CLASS)
var block = DxfBlock.FromBuffer(buffer);
if (block != null)
{
section.Blocks.Add(block);
}
}
return(section);
}
internal static DxfAppId FromBuffer(DxfCodePairBufferReader buffer)
{
var item = new DxfAppId();
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (pair.Code == 0)
{
break;
}
buffer.Advance();
switch (pair.Code)
{
case 70:
item.StandardFlags = (int)pair.ShortValue;
break;
case DxfCodePairGroup.GroupCodeNumber:
var groupName = DxfCodePairGroup.GetGroupName(pair.StringValue);
item.ExtensionDataGroups.Add(DxfCodePairGroup.FromBuffer(buffer, groupName));
break;
case (int)DxfXDataType.ApplicationName:
item.XData = DxfXData.FromBuffer(buffer, pair.StringValue);
break;
default:
item.TrySetPair(pair);
break;
}
}
return item;
}
internal virtual DxfEntity PopulateFromBuffer(DxfCodePairBufferReader buffer)
{
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (pair.Code == 0)
{
break;
}
if (TrySetPair(pair))
{
// pair was successfully applied; consume it
buffer.Advance();
}
else if (this.TrySetExtensionData(pair, buffer))
{
// do nothing as TrySetExtensionData consumes as necessary
}
else
{
// track it for later use and consume it
ExcessCodePairs.Add(pair);
buffer.Advance();
}
}
return PostParse();
}
private static DxfPoint ReadPoint(DxfCodePair xCoord, DxfCodePairBufferReader buffer, int expectedFirstCode)
{
// first value
var pair = xCoord;
Debug.Assert(pair.Code == expectedFirstCode);
var x = pair.DoubleValue;
// second value
Debug.Assert(buffer.ItemsRemain);
pair = buffer.Peek();
Debug.Assert(pair.Code == expectedFirstCode + 10);
var y = pair.DoubleValue;
buffer.Advance();
// third value
Debug.Assert(buffer.ItemsRemain);
pair = buffer.Peek();
Debug.Assert(pair.Code == expectedFirstCode + 20);
var z = pair.DoubleValue;
buffer.Advance();
return(new DxfPoint(x, y, z));
}
internal static DxfObjectsSection ObjectsSectionFromBuffer(DxfCodePairBufferReader buffer)
{
var objects = new List<DxfObject>();
objects.Clear();
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (DxfCodePair.IsSectionEnd(pair))
{
// done reading objects
buffer.Advance(); // swallow (0, ENDSEC)
break;
}
if (pair.Code != 0)
{
throw new DxfReadException("Expected new object.", pair);
}
var obj = DxfObject.FromBuffer(buffer);
if (obj != null)
{
objects.Add(obj);
}
}
var section = new DxfObjectsSection();
section.Objects.AddRange(objects);
return section;
}
public void ApplyCodePairs(DxfCodePairBufferReader buffer)
{
var pair = buffer.Peek();
buffer.Advance();
switch (pair.Code)
{
case 5:
((IDxfItemInternal)this).Handle = DxfCommonConverters.UIntHandle(pair.StringValue);
break;
case 8:
// just a re-iteration of the layer
break;
case 67:
// just a re-iteration of the paper space setting
break;
case 100:
Debug.Assert(pair.StringValue == AcDbEntityText || pair.StringValue == AcDbBlockEndText);
break;
case DxfCodePairGroup.GroupCodeNumber:
var groupName = DxfCodePairGroup.GetGroupName(pair.StringValue);
ExtensionDataGroups.Add(DxfCodePairGroup.FromBuffer(buffer, groupName));
break;
}
}
internal override DxfObject PopulateFromBuffer(DxfCodePairBufferReader buffer)
{
bool readingData = false;
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (pair.Code == 0)
{
break;
}
if (readingData)
{
DataPairs.Add(pair);
}
else
{
if (pair.Code == 280)
{
DuplicateRecordHandling = (DxfDictionaryDuplicateRecordHandling)pair.ShortValue;
buffer.Advance();
readingData = true;
continue;
}
if (base.TrySetPair(pair))
{
buffer.Advance();
continue;
}
if (this.TrySetExtensionData(pair, buffer))
{
continue;
}
if (pair.Code == 100)
{
Debug.Assert(pair.StringValue == "AcDbXrecord");
buffer.Advance();
continue;
}
else if (pair.Code == 5 || pair.Code == 105)
{
// these codes aren't allowed here
ExcessCodePairs.Add(pair);
}
else
{
DataPairs.Add(pair);
readingData = true;
}
}
buffer.Advance();
}
return PostParse();
}
internal override DxfObject PopulateFromBuffer(DxfCodePairBufferReader buffer)
{
var isReadyForSortHandles = false;
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (pair.Code == 0)
{
break;
}
while (this.TrySetExtensionData(pair, buffer))
{
pair = buffer.Peek();
}
switch (pair.Code)
{
case 5:
if (isReadyForSortHandles)
{
SortItemsPointers.Pointers.Add(new DxfPointer(DxfCommonConverters.HandleString(pair.StringValue)));
}
else
{
((IDxfItemInternal)this).Handle = DxfCommonConverters.HandleString(pair.StringValue);
isReadyForSortHandles = true;
}
break;
case 100:
isReadyForSortHandles = true;
break;
case 330:
((IDxfItemInternal)this).OwnerHandle = DxfCommonConverters.HandleString(pair.StringValue);
isReadyForSortHandles = true;
break;
case 331:
EntitiesPointers.Pointers.Add(new DxfPointer(DxfCommonConverters.HandleString(pair.StringValue)));
isReadyForSortHandles = true;
break;
default:
if (!base.TrySetPair(pair))
{
ExcessCodePairs.Add(pair);
}
break;
}
buffer.Advance();
}
return(PostParse());
}
internal override DxfEntity PopulateFromBuffer(DxfCodePairBufferReader buffer)
{
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (pair.Code == 0)
{
break;
}
while (this.TrySetExtensionData(pair, buffer))
{
pair = buffer.Peek();
}
switch (pair.Code)
{
case 10:
// start a new vertex
Vertices.Add(new DxfLwPolylineVertex());
Vertices.Last().X = pair.DoubleValue;
break;
case 20:
Vertices.Last().Y = pair.DoubleValue;
break;
case 40:
Vertices.Last().StartingWidth = pair.DoubleValue;
break;
case 41:
Vertices.Last().EndingWidth = pair.DoubleValue;
break;
case 42:
Vertices.Last().Bulge = pair.DoubleValue;
break;
case 91:
Vertices.Last().Identifier = pair.IntegerValue;
break;
default:
if (!base.TrySetPair(pair))
{
ExcessCodePairs.Add(pair);
}
break;
}
buffer.Advance();
}
return(PostParse());
}
private static void SwallowEntity(DxfCodePairBufferReader buffer)
{
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (pair.Code == 0)
break;
buffer.Advance();
}
}
internal override DxfObject PopulateFromBuffer(DxfCodePairBufferReader buffer)
{
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (pair.Code == 0)
{
break;
}
while (this.TrySetExtensionData(pair, buffer))
{
pair = buffer.Peek();
}
if (pair.Code == 0)
{
break;
}
switch (pair.Code)
{
case 1:
Debug.Assert(pair.StringValue == "SectionTypeSettings");
buffer.Advance();
for (var sectionSettings = DxfSectionTypeSettings.FromBuffer(buffer); sectionSettings != null; sectionSettings = DxfSectionTypeSettings.FromBuffer(buffer))
{
SectionTypeSettings.Add(sectionSettings);
}
break;
case 90:
SectionType = pair.IntegerValue;
buffer.Advance();
break;
case 91:
var generationSettingsCount = pair.IntegerValue;
buffer.Advance();
break;
default:
if (!base.TrySetPair(pair))
{
ExcessCodePairs.Add(pair);
}
buffer.Advance();
break;
}
}
return(PostParse());
}
internal static void SwallowSection(DxfCodePairBufferReader buffer)
{
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
buffer.Advance();
if (DxfCodePair.IsSectionEnd(pair))
{
break;
}
}
}
internal static DxfXDataItem FromBuffer(DxfCodePairBufferReader buffer)
{
var pair = buffer.Peek();
buffer.Advance();
switch ((DxfXDataType)pair.Code)
{
case DxfXDataType.String:
return(new DxfXDataString(pair.StringValue));
case DxfXDataType.ControlString:
return(DxfXDataItemList.ListFromBuffer(buffer));
case DxfXDataType.Layer:
return(new DxfXDataLayerName(pair.StringValue));
case DxfXDataType.BinaryData:
return(new DxfXDataBinaryData(DxfCommonConverters.HexBytes(pair.StringValue)));
case DxfXDataType.Handle:
return(new DxfXDataHandle(DxfCommonConverters.UIntHandle(pair.StringValue)));
case DxfXDataType.RealTriple:
return(new DxfXData3Reals(ReadPoint(pair, buffer, pair.Code)));
case DxfXDataType.WorldSpacePosition:
return(new DxfXDataWorldSpacePosition(ReadPoint(pair, buffer, pair.Code)));
case DxfXDataType.WorldSpaceDisplacement:
return(new DxfXDataWorldSpaceDisplacement(ReadPoint(pair, buffer, pair.Code)));
case DxfXDataType.WorldDirection:
return(new DxfXDataWorldDirection(ReadPoint(pair, buffer, pair.Code)));
case DxfXDataType.Real:
return(new DxfXDataReal(pair.DoubleValue));
case DxfXDataType.Distance:
return(new DxfXDataDistance(pair.DoubleValue));
case DxfXDataType.ScaleFactor:
return(new DxfXDataScaleFactor(pair.DoubleValue));
case DxfXDataType.Integer:
return(new DxfXDataInteger(pair.ShortValue));
case DxfXDataType.Long:
return(new DxfXDataLong(pair.IntegerValue));
default:
return(null); // unexpected XDATA code pair
}
}
internal override DxfObject PopulateFromBuffer(DxfCodePairBufferReader buffer)
{
bool readVersionNumber = false;
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (pair.Code == 0)
{
break;
}
while (this.TrySetExtensionData(pair, buffer))
{
pair = buffer.Peek();
}
switch (pair.Code)
{
case 5:
// pointer to a new light
LightsPointers.Pointers.Add(new DxfPointer(DxfCommonConverters.UIntHandle(pair.StringValue)));
break;
case 1:
// don't worry about the name; it'll be read from the light entity directly
break;
case 90:
if (readVersionNumber)
{
// count of lights is ignored since it's implicitly set by reading the values
}
else
{
Version = pair.IntegerValue;
readVersionNumber = true;
}
break;
default:
if (!base.TrySetPair(pair))
{
ExcessCodePairs.Add(pair);
}
break;
}
buffer.Advance();
}
return(PostParse());
}
internal static DxfSection FromBuffer(DxfCodePairBufferReader buffer, DxfAcadVersion version)
{
Debug.Assert(buffer.ItemsRemain);
var sectionType = buffer.Peek();
buffer.Advance();
if (sectionType.Code != 2)
{
throw new DxfReadException($"Expected code 2, got {sectionType.Code}", sectionType);
}
DxfSection section;
switch (sectionType.StringValue)
{
case BlocksSectionText:
section = DxfBlocksSection.BlocksSectionFromBuffer(buffer, version);
break;
case ClassesSectionText:
section = DxfClassesSection.ClassesSectionFromBuffer(buffer, version);
break;
case EntitiesSectionText:
section = DxfEntitiesSection.EntitiesSectionFromBuffer(buffer);
break;
case HeaderSectionText:
section = DxfHeaderSection.HeaderSectionFromBuffer(buffer);
break;
case ObjectsSectionText:
section = DxfObjectsSection.ObjectsSectionFromBuffer(buffer);
break;
case TablesSectionText:
section = DxfTablesSection.TablesSectionFromBuffer(buffer);
break;
case ThumbnailImageSectionText:
section = DxfThumbnailImageSection.ThumbnailImageSectionFromBuffer(buffer);
break;
default:
SwallowSection(buffer);
section = null;
break;
}
return(section);
}
internal override DxfObject PopulateFromBuffer(DxfCodePairBufferReader buffer)
{
var isReadyForSortHandles = false;
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (pair.Code == 0)
{
break;
}
while (this.TrySetExtensionData(pair, buffer))
{
pair = buffer.Peek();
}
switch (pair.Code)
{
case 5:
if (isReadyForSortHandles)
{
SortItemsPointers.Pointers.Add(new DxfPointer(DxfCommonConverters.UIntHandle(pair.StringValue)));
}
else
{
((IDxfItemInternal)this).Handle = DxfCommonConverters.UIntHandle(pair.StringValue);
isReadyForSortHandles = true;
}
break;
case 100:
isReadyForSortHandles = true;
break;
case 330:
((IDxfItemInternal)this).OwnerHandle = DxfCommonConverters.UIntHandle(pair.StringValue);
isReadyForSortHandles = true;
break;
case 331:
EntitiesPointers.Pointers.Add(new DxfPointer(DxfCommonConverters.UIntHandle(pair.StringValue)));
isReadyForSortHandles = true;
break;
default:
ExcessCodePairs.Add(pair);
break;
}
buffer.Advance();
}
return PostParse();
}
internal override DxfObject PopulateFromBuffer(DxfCodePairBufferReader buffer)
{
bool readVersionNumber = false;
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (pair.Code == 0)
{
break;
}
if (TrySetExtensionData(pair, buffer))
{
pair = buffer.Peek();
}
switch (pair.Code)
{
case 5:
// start a new light item
Lights.Add(new DxfLightListItem());
Lights.Last().Handle = UIntHandle(pair.StringValue);
break;
case 1:
Lights.Last().Name = pair.StringValue;
break;
case 90:
if (readVersionNumber)
{
// count of lights is ignored since it's implicitly set by reading the values
}
else
{
Version = pair.IntegerValue;
readVersionNumber = true;
}
break;
default:
if (!base.TrySetPair(pair))
{
ExcessCodePairs.Add(pair);
}
break;
}
buffer.Advance();
}
return PostParse();
}
internal override DxfEntity PopulateFromBuffer(DxfCodePairBufferReader buffer)
{
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (pair.Code == 0)
{
break;
}
while (this.TrySetExtensionData(pair, buffer))
{
pair = buffer.Peek();
}
switch (pair.Code)
{
case 10:
// start a new vertex
Vertices.Add(new DxfLwPolylineVertex());
Vertices.Last().X = pair.DoubleValue;
break;
case 20:
Vertices.Last().Y = pair.DoubleValue;
break;
case 40:
Vertices.Last().StartingWidth = pair.DoubleValue;
break;
case 41:
Vertices.Last().EndingWidth = pair.DoubleValue;
break;
case 42:
Vertices.Last().Bulge = pair.DoubleValue;
break;
case 91:
Vertices.Last().Identifier = pair.IntegerValue;
break;
default:
if (!base.TrySetPair(pair))
{
ExcessCodePairs.Add(pair);
}
break;
}
buffer.Advance();
}
return PostParse();
}
internal override DxfObject PopulateFromBuffer(DxfCodePairBufferReader buffer)
{
bool readVersionNumber = false;
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (pair.Code == 0)
{
break;
}
while (this.TrySetExtensionData(pair, buffer))
{
pair = buffer.Peek();
}
switch (pair.Code)
{
case 5:
// pointer to a new light
LightsPointers.Pointers.Add(new DxfPointer(DxfCommonConverters.UIntHandle(pair.StringValue)));
break;
case 1:
// don't worry about the name; it'll be read from the light entity directly
break;
case 90:
if (readVersionNumber)
{
// count of lights is ignored since it's implicitly set by reading the values
}
else
{
Version = pair.IntegerValue;
readVersionNumber = true;
}
break;
default:
if (!base.TrySetPair(pair))
{
ExcessCodePairs.Add(pair);
}
break;
}
buffer.Advance();
}
return PostParse();
}
internal static DxfXData FromBuffer(DxfCodePairBufferReader buffer, string applicationName)
{
var items = new List<DxfXDataItem>();
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (pair.Code == (int)DxfXDataType.ApplicationName || pair.Code < 1000)
{
// new xdata or non-xdata
break;
}
items.Add(DxfXDataItem.FromBuffer(buffer));
}
return new DxfXData(applicationName, items);
}
internal override DxfObject PopulateFromBuffer(DxfCodePairBufferReader buffer)
{
bool isReadingPlotSettings = true;
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (pair.Code == 0)
{
break;
}
while (this.TrySetExtensionData(pair, buffer))
{
pair = buffer.Peek();
}
if (isReadingPlotSettings)
{
if (pair.Code == 100 && pair.StringValue == "AcDbLayout")
{
isReadingPlotSettings = false;
}
else
{
if (!base.TrySetPair(pair))
{
ExcessCodePairs.Add(pair);
}
}
}
else
{
if (!TrySetPair(pair))
{
ExcessCodePairs.Add(pair);
}
}
buffer.Advance();
}
return(PostParse());
}
internal override DxfObject PopulateFromBuffer(DxfCodePairBufferReader buffer)
{
bool isReadingPlotSettings = true;
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (pair.Code == 0)
{
break;
}
if (TrySetExtensionData(pair, buffer))
{
pair = buffer.Peek();
}
if (isReadingPlotSettings)
{
if (pair.Code == 100 && pair.StringValue == "AcDbLayout")
{
isReadingPlotSettings = false;
}
else
{
if (!base.TrySetPair(pair))
{
ExcessCodePairs.Add(pair);
}
}
}
else
{
if (!TrySetPair(pair))
{
ExcessCodePairs.Add(pair);
}
}
buffer.Advance();
}
return PostParse();
}
internal static DxfHeaderSection HeaderSectionFromBuffer(DxfCodePairBufferReader buffer)
{
var section = new DxfHeaderSection();
string keyName = null;
Func <short, bool> shortToBool = value => value != 0;
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
buffer.Advance();
if (DxfCodePair.IsSectionEnd(pair))
{
// done reading settings
break;
}
if (pair.Code == 9)
{
// what setting to get
keyName = pair.StringValue;
}
else
{
section.Header.SetHeaderVariable(keyName, pair);
if (string.Compare(keyName, "$DWGCODEPAGE", StringComparison.OrdinalIgnoreCase) == 0 && section.Header.Version <= DxfAcadVersion.R2004)
{
// R2004 and before should honor the specified code page
if (DxfEncodingHelper.TryParseEncoding(pair.StringValue, out var codePage))
{
var encoding = Encoding.GetEncoding(codePage);
buffer.SetReaderEncoding(encoding);
}
}
else if (string.Compare(keyName, "$ACADVER", StringComparison.OrdinalIgnoreCase) == 0 && section.Header.Version >= DxfAcadVersion.R2007)
{
// R2007 and up should switch to a UTF8 reader
buffer.SetReaderEncoding(Encoding.UTF8);
}
}
}
return(section);
}
internal static DxfSection FromBuffer(DxfCodePairBufferReader buffer, DxfAcadVersion version)
{
Debug.Assert(buffer.ItemsRemain);
var sectionType = buffer.Peek();
buffer.Advance();
if (sectionType.Code != 2)
{
throw new DxfReadException($"Expected code 2, got {sectionType.Code}", sectionType);
}
DxfSection section;
switch (sectionType.StringValue)
{
case BlocksSectionText:
section = DxfBlocksSection.BlocksSectionFromBuffer(buffer, version);
break;
case ClassesSectionText:
section = DxfClassesSection.ClassesSectionFromBuffer(buffer, version);
break;
case EntitiesSectionText:
section = DxfEntitiesSection.EntitiesSectionFromBuffer(buffer);
break;
case HeaderSectionText:
section = DxfHeaderSection.HeaderSectionFromBuffer(buffer);
break;
case ObjectsSectionText:
section = DxfObjectsSection.ObjectsSectionFromBuffer(buffer);
break;
case TablesSectionText:
section = DxfTablesSection.TablesSectionFromBuffer(buffer);
break;
case ThumbnailImageSectionText:
section = DxfThumbnailImageSection.ThumbnailImageSectionFromBuffer(buffer);
break;
default:
SwallowSection(buffer);
section = null;
break;
}
return section;
}
public void ApplyCodePairs(DxfCodePairBufferReader buffer, DxfAcadVersion version)
{
var pair = buffer.Peek();
buffer.Advance();
switch (pair.Code)
{
case 5:
Handle = DxfCommonConverters.UIntHandle(pair.StringValue);
break;
case 8:
Debug.Assert(version >= DxfAcadVersion.R13);
break;
case 100:
Debug.Assert(pair.StringValue == AcDbEntityText || pair.StringValue == AcDbBlockEndText);
break;
case DxfCodePairGroup.GroupCodeNumber:
var groupName = DxfCodePairGroup.GetGroupName(pair.StringValue);
ExtensionDataGroups.Add(DxfCodePairGroup.FromBuffer(buffer, groupName));
break;
}
}
internal static DxfCodePairGroup FromBuffer(DxfCodePairBufferReader buffer, string groupName)
{
var items = new List<IDxfCodePairOrGroup>();
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (pair.Code == 0)
{
Debug.Assert(false, "Unexpected end of section/file while parsing group.");
break;
}
buffer.Advance();
if (pair.Code == GroupCodeNumber)
{
if (pair.StringValue == "}")
{
// end of group
break;
}
else if (pair.StringValue.StartsWith("{"))
{
// nested group
var subGroupName = GetGroupName(pair.StringValue);
var subGroup = FromBuffer(buffer, subGroupName);
items.Add(subGroup);
}
else
{
throw new DxfReadException("Unexpected code pair group text", pair);
}
}
else
{
items.Add(pair);
}
}
return new DxfCodePairGroup(groupName, items);
}
internal static DxfTable ReadFromBuffer(DxfCodePairBufferReader buffer)
{
var table = new DxfStyleTable();
table.Items.Clear();
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
buffer.Advance();
if (DxfTablesSection.IsTableEnd(pair))
{
break;
}
if (pair.Code == 0 && pair.StringValue == DxfTable.StyleText)
{
var item = DxfStyle.FromBuffer(buffer);
table.Items.Add(item);
}
}
return(table);
}
internal static DxfXDataItemList ListFromBuffer(DxfCodePairBufferReader buffer)
{
Debug.Assert(buffer.ItemsRemain);
DxfCodePair pair;
var items = new List <DxfXDataItem>();
while (buffer.ItemsRemain)
{
pair = buffer.Peek();
if (pair.Code == (int)DxfXDataType.ControlString && pair.StringValue == "}")
{
buffer.Advance();
break;
}
var item = DxfXDataItem.FromBuffer(buffer);
if (item != null)
{
items.Add(item);
}
}
return(new DxfXDataItemList(items));
}
internal static DxfThumbnailImageSection ThumbnailImageSectionFromBuffer(DxfCodePairBufferReader buffer)
{
if (buffer.ItemsRemain)
{
var lengthPair = buffer.Peek();
buffer.Advance();
if (lengthPair.Code != 90)
{
return(null);
}
var length = lengthPair.IntegerValue;
var lines = new List <string>();
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
buffer.Advance();
if (DxfCodePair.IsSectionEnd(pair))
{
break;
}
Debug.Assert(pair.Code == 310);
lines.Add(pair.StringValue);
}
var section = new DxfThumbnailImageSection();
section.Clear();
section.RawData = DxfCommonConverters.HexBytes(string.Join(string.Empty, lines.ToArray()));
return(section);
}
return(null);
}
internal static DxfThumbnailImageSection ThumbnailImageSectionFromBuffer(DxfCodePairBufferReader buffer)
{
if (buffer.ItemsRemain)
{
var lengthPair = buffer.Peek();
buffer.Advance();
if (lengthPair.Code != 90)
{
return(null);
}
var length = lengthPair.IntegerValue;
var rawData = new List <byte>();
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
buffer.Advance();
if (DxfCodePair.IsSectionEnd(pair))
{
break;
}
Debug.Assert(pair.Code == 310);
rawData.AddRange(pair.BinaryValue);
}
var section = new DxfThumbnailImageSection();
section.Clear();
section.RawData = rawData.ToArray();
return(section);
}
return(null);
}
internal override DxfObject PopulateFromBuffer(DxfCodePairBufferReader buffer)
{
bool readDuplicateFlag = false;
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (pair.Code == 0)
{
break;
}
if (TrySetExtensionData(pair, buffer))
{
pair = buffer.Peek();
}
if (pair.Code == 280 && !readDuplicateFlag)
{
DuplicateRecordHandling = (DxfDictionaryDuplicateRecordHandling)pair.ShortValue;
readDuplicateFlag = true;
}
else if (pair.Code == 5 || pair.Code == 105)
{
// these codes aren't allowed here
ExcessCodePairs.Add(pair);
}
else
{
DataPairs.Add(pair);
}
buffer.Advance();
}
return PostParse();
}
internal static DxfStyle FromBuffer(DxfCodePairBufferReader buffer)
{
var item = new DxfStyle();
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (pair.Code == 0)
{
break;
}
buffer.Advance();
switch (pair.Code)
{
case 70:
item.StandardFlags = (int)pair.ShortValue;
break;
case DxfCodePairGroup.GroupCodeNumber:
var groupName = DxfCodePairGroup.GetGroupName(pair.StringValue);
item.ExtensionDataGroups.Add(DxfCodePairGroup.FromBuffer(buffer, groupName));
break;
case 40:
item.TextHeight = (pair.DoubleValue);
break;
case 41:
item.WidthFactor = (pair.DoubleValue);
break;
case 50:
item.ObliqueAngle = (pair.DoubleValue);
break;
case 71:
item.TextGenerationFlags = (int)(pair.ShortValue);
break;
case 42:
item.LastHeightUsed = (pair.DoubleValue);
break;
case 3:
item.PrimaryFontFileName = (pair.StringValue);
break;
case 4:
item.BigFontFileName = (pair.StringValue);
break;
case (int)DxfXDataType.ApplicationName:
item.XData = DxfXData.FromBuffer(buffer, pair.StringValue);
break;
default:
item.TrySetPair(pair);
break;
}
}
return item;
}
internal static DxfBlock FromBuffer(DxfCodePairBufferReader buffer)
{
if (!buffer.ItemsRemain)
{
return null;
}
var block = new DxfBlock();
var readingBlockStart = true;
var readingBlockEnd = false;
var entities = new List<DxfEntity>();
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (DxfCodePair.IsSectionEnd(pair))
{
// done reading blocks
buffer.Advance(); // swallow (0, ENDSEC)
break;
}
else if (IsBlockStart(pair))
{
if (readingBlockStart)
{
// if another block is found, stop reading this one because some blocks don't specify (0, ENDBLK)
break;
}
break;
}
else if (IsBlockEnd(pair))
{
if (!readingBlockStart) throw new DxfReadException("Unexpected block end", pair);
readingBlockStart = false;
readingBlockEnd = true;
buffer.Advance(); // swallow (0, ENDBLK)
}
else if (pair.Code == 0)
{
// should be an entity
var entity = DxfEntity.FromBuffer(buffer);
if (entity != null)
{
// entity could be null if it's unsupported
entities.Add(entity);
}
}
else
{
// read value pair
if (readingBlockStart)
{
buffer.Advance();
switch (pair.Code)
{
case 1:
block.XrefName = pair.StringValue;
break;
case 2:
block.Name = pair.StringValue;
break;
case 3:
break;
case 4:
block.Description = pair.StringValue;
break;
case 5:
((IDxfItemInternal)block).Handle = DxfCommonConverters.UIntHandle(pair.StringValue);
break;
case 8:
block.Layer = pair.StringValue;
break;
case 10:
block.BasePoint = block.BasePoint.WithUpdatedX(pair.DoubleValue);
break;
case 20:
block.BasePoint = block.BasePoint.WithUpdatedY(pair.DoubleValue);
break;
case 30:
block.BasePoint = block.BasePoint.WithUpdatedZ(pair.DoubleValue);
break;
case 67:
block.IsInPaperSpace = DxfCommonConverters.BoolShort(pair.ShortValue);
break;
case 70:
block.Flags = pair.ShortValue;
break;
case 330:
((IDxfItemInternal)block).OwnerHandle = DxfCommonConverters.UIntHandle(pair.StringValue);
break;
case DxfCodePairGroup.GroupCodeNumber:
var groupName = DxfCodePairGroup.GetGroupName(pair.StringValue);
block.ExtensionDataGroups.Add(DxfCodePairGroup.FromBuffer(buffer, groupName));
break;
case (int)DxfXDataType.ApplicationName:
block.XData = DxfXData.FromBuffer(buffer, pair.StringValue);
break;
}
}
else if (readingBlockEnd)
{
block.EndBlock.ApplyCodePairs(buffer);
}
else
{
throw new DxfReadException("Unexpected pair in block", pair);
}
}
}
var collected = DxfEntitiesSection.GatherEntities(entities);
foreach (var entity in collected)
{
block.Entities.Add(entity);
}
return block;
}
internal static DxfSectionTypeSettings FromBuffer(DxfCodePairBufferReader buffer)
{
if (buffer.Peek()?.Code == 0)
{
return(null);
}
var settings = new DxfSectionTypeSettings();
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (pair.Code == 0)
{
break;
}
switch (pair.Code)
{
case 1:
settings.DestinationFileName = pair.StringValue;
buffer.Advance();
break;
case 2:
Debug.Assert(pair.StringValue == "SectionGeometrySettings");
buffer.Advance();
for (var geometry = DxfSectionGeometrySettings.FromBuffer(buffer); geometry != null; geometry = DxfSectionGeometrySettings.FromBuffer(buffer))
{
settings.GeometrySettings.Add(geometry);
}
break;
case 3:
Debug.Assert(pair.StringValue == "SectionTypeSettingsEnd");
buffer.Advance();
break;
case 90:
settings.SectionType = pair.IntegerValue;
buffer.Advance();
break;
case 91:
settings.IsGenerationOption = pair.IntegerValue != 0;
buffer.Advance();
break;
case 92:
var sourceObjectsCount = pair.IntegerValue;
buffer.Advance();
break;
case 93:
var generationSettingsCount = pair.IntegerValue;
buffer.Advance();
break;
case 330:
settings.SourceObjectHandles.Add(DxfCommonConverters.UIntHandle(pair.StringValue));
buffer.Advance();
break;
case 331:
settings.DestinationObjectHandle = DxfCommonConverters.UIntHandle(pair.StringValue);
buffer.Advance();
break;
default:
return(settings);
}
}
return(settings);
}
internal static DxfSectionGeometrySettings FromBuffer(DxfCodePairBufferReader buffer)
{
var stillReading = true;
var settings = new DxfSectionGeometrySettings();
if (buffer.Peek()?.Code != 90)
{
// only code 90 can start one of these
return(null);
}
while (buffer.ItemsRemain && stillReading)
{
var pair = buffer.Peek();
switch (pair.Code)
{
case 1:
settings.PlotstyleName = pair.StringValue;
break;
case 2:
settings.HatchPatternName = pair.StringValue;
break;
case 3:
Debug.Assert(pair.StringValue == "SectionGeometrySettingsEnd");
stillReading = false;
break;
case 6:
settings.LinetypeName = pair.StringValue;
break;
case 8:
settings.LayerName = pair.StringValue;
break;
case 40:
settings.LinetypeScale = pair.DoubleValue;
break;
case 41:
settings.HatchAngle = pair.DoubleValue;
break;
case 42:
settings.HatchScale = pair.DoubleValue;
break;
case 43:
settings.HatchSpacing = pair.DoubleValue;
break;
case 63:
settings.Color = DxfColor.FromRawValue(pair.ShortValue);
break;
case 70:
settings.FaceTransparency = pair.ShortValue;
break;
case 71:
settings.EdgeTransparency = pair.ShortValue;
break;
case 72:
settings.HatchPatternType = pair.ShortValue;
break;
case 90:
settings.SectionType = pair.IntegerValue;
break;
case 91:
settings.GeometryCount = pair.IntegerValue;
break;
case 92:
settings.BitFlags = pair.IntegerValue;
break;
case 370:
settings.LineWeight = pair.ShortValue;
break;
default:
// unexpected end, return immediately without consuming the code pair
return(settings);
}
buffer.Advance();
}
return(settings);
}
internal static DxfTable ReadFromBuffer(DxfCodePairBufferReader buffer)
{
var table = new DxfViewTable();
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
buffer.Advance();
if (DxfTablesSection.IsTableEnd(pair))
{
break;
}
if (pair.Code == 0 && pair.StringValue == DxfTable.ViewText)
{
var item = DxfView.FromBuffer(buffer);
table.Items.Add(item);
}
}
return table;
}
internal static DxfUcs FromBuffer(DxfCodePairBufferReader buffer)
{
var item = new DxfUcs();
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (pair.Code == 0)
{
break;
}
buffer.Advance();
switch (pair.Code)
{
case 70:
item.StandardFlags = (int)pair.ShortValue;
break;
case DxfCodePairGroup.GroupCodeNumber:
var groupName = DxfCodePairGroup.GetGroupName(pair.StringValue);
item.ExtensionDataGroups.Add(DxfCodePairGroup.FromBuffer(buffer, groupName));
break;
case 10:
item.Origin.X = (pair.DoubleValue);
break;
case 20:
item.Origin.Y = (pair.DoubleValue);
break;
case 30:
item.Origin.Z = (pair.DoubleValue);
break;
case 11:
item.XAxis.X = (pair.DoubleValue);
break;
case 21:
item.XAxis.Y = (pair.DoubleValue);
break;
case 31:
item.XAxis.Z = (pair.DoubleValue);
break;
case 12:
item.YAxis.X = (pair.DoubleValue);
break;
case 22:
item.YAxis.Y = (pair.DoubleValue);
break;
case 32:
item.YAxis.Z = (pair.DoubleValue);
break;
case 79:
item.OrthographicViewType = (DxfOrthographicViewType)(pair.ShortValue);
break;
case 146:
item.Elevation = (pair.DoubleValue);
break;
case 346:
item.BaseUcsHandle = UIntHandle(pair.StringValue);
break;
case 71:
item.OrthographicType = (DxfOrthographicViewType)(pair.ShortValue);
break;
case 13:
item.OrthographicOrigin.X = (pair.DoubleValue);
break;
case 23:
item.OrthographicOrigin.Y = (pair.DoubleValue);
break;
case 33:
item.OrthographicOrigin.Z = (pair.DoubleValue);
break;
case (int)DxfXDataType.ApplicationName:
item.XData = DxfXData.FromBuffer(buffer, pair.StringValue);
break;
default:
item.TrySetPair(pair);
break;
}
}
return item;
}
internal static DxfViewPort FromBuffer(DxfCodePairBufferReader buffer)
{
var item = new DxfViewPort();
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (pair.Code == 0)
{
break;
}
buffer.Advance();
switch (pair.Code)
{
case 70:
item.StandardFlags = (int)pair.ShortValue;
break;
case DxfCodePairGroup.GroupCodeNumber:
var groupName = DxfCodePairGroup.GetGroupName(pair.StringValue);
item.ExtensionDataGroups.Add(DxfCodePairGroup.FromBuffer(buffer, groupName));
break;
case 10:
item.LowerLeft.X = (pair.DoubleValue);
break;
case 20:
item.LowerLeft.Y = (pair.DoubleValue);
break;
case 11:
item.UpperRight.X = (pair.DoubleValue);
break;
case 21:
item.UpperRight.Y = (pair.DoubleValue);
break;
case 12:
item.ViewCenter.X = (pair.DoubleValue);
break;
case 22:
item.ViewCenter.Y = (pair.DoubleValue);
break;
case 13:
item.SnapBasePoint.X = (pair.DoubleValue);
break;
case 23:
item.SnapBasePoint.Y = (pair.DoubleValue);
break;
case 14:
item.SnapSpacing.X = (pair.DoubleValue);
break;
case 24:
item.SnapSpacing.Y = (pair.DoubleValue);
break;
case 15:
item.GridSpacing.X = (pair.DoubleValue);
break;
case 25:
item.GridSpacing.Y = (pair.DoubleValue);
break;
case 16:
item.ViewDirection.X = (pair.DoubleValue);
break;
case 26:
item.ViewDirection.Y = (pair.DoubleValue);
break;
case 36:
item.ViewDirection.Z = (pair.DoubleValue);
break;
case 17:
item.TargetViewPoint.X = (pair.DoubleValue);
break;
case 27:
item.TargetViewPoint.Y = (pair.DoubleValue);
break;
case 37:
item.TargetViewPoint.Z = (pair.DoubleValue);
break;
case 40:
item.ViewHeight = (pair.DoubleValue);
break;
case 41:
item.ViewPortAspectRatio = (pair.DoubleValue);
break;
case 42:
item.LensLength = (pair.DoubleValue);
break;
case 43:
item.FrontClippingPlane = (pair.DoubleValue);
break;
case 44:
item.BackClippingPlane = (pair.DoubleValue);
break;
case 45:
item.ViewHeight = (pair.DoubleValue);
break;
case 50:
item.SnapRotationAngle = (pair.DoubleValue);
break;
case 51:
item.ViewTwistAngle = (pair.DoubleValue);
break;
case 68:
item.Status = (pair.ShortValue);
break;
case 69:
item.ID = (pair.ShortValue);
break;
case 71:
item.ViewMode = (DxfViewMode)(pair.ShortValue);
break;
case 72:
item.CircleZoomPercent = (int)(pair.ShortValue);
break;
case 73:
item.FastZoom = BoolShort(pair.ShortValue);
break;
case 74:
item.UCSIcon = BoolShort(pair.ShortValue);
break;
case 75:
item.SnapOn = BoolShort(pair.ShortValue);
break;
case 76:
item.GridOn = BoolShort(pair.ShortValue);
break;
case 77:
item.SnapStyle = (pair.ShortValue);
break;
case 78:
item.SnapIsoPair = (pair.ShortValue);
break;
case 1:
item.PlotStyleSheet = (pair.StringValue);
break;
case 281:
item.RenderMode = (DxfViewRenderMode)(pair.ShortValue);
break;
case 65:
item.HasOwnUCS = BoolShort(pair.ShortValue);
break;
case 110:
item.UCSOrigin.X = (pair.DoubleValue);
break;
case 120:
item.UCSOrigin.Y = (pair.DoubleValue);
break;
case 130:
item.UCSOrigin.Z = (pair.DoubleValue);
break;
case 111:
item.UCSXAxis.X = (pair.DoubleValue);
break;
case 121:
item.UCSXAxis.Y = (pair.DoubleValue);
break;
case 131:
item.UCSXAxis.Z = (pair.DoubleValue);
break;
case 112:
item.UCSYAxis.X = (pair.DoubleValue);
break;
case 122:
item.UCSYAxis.Y = (pair.DoubleValue);
break;
case 132:
item.UCSYAxis.Z = (pair.DoubleValue);
break;
case 79:
item.OrthographicViewType = (DxfOrthographicViewType)(pair.ShortValue);
break;
case 146:
item.UCSElevation = (pair.DoubleValue);
break;
case 345:
item.UCSHandle = UIntHandle(pair.StringValue);
break;
case 346:
item.BaseUCSHandle = UIntHandle(pair.StringValue);
break;
case 170:
item.ShadePlotSetting = (DxfShadeEdgeMode)(pair.ShortValue);
break;
case 61:
item.MajorGridLines = BoolShort(pair.ShortValue);
break;
case 332:
item.BackgroundObjectPointer = UIntHandle(pair.StringValue);
break;
case 333:
item.ShadePlotObjectPointer = UIntHandle(pair.StringValue);
break;
case 348:
item.VisualStyleObjectPointer = UIntHandle(pair.StringValue);
break;
case 292:
item.IsDefaultLightingOn = (pair.BoolValue);
break;
case 282:
item.DefaultLightingType = (DxfDefaultLightingType)(pair.ShortValue);
break;
case 141:
item.Brightness = (pair.DoubleValue);
break;
case 142:
item.Contrast = (pair.DoubleValue);
break;
case 62:
item.AmbientColor = DxfColor.FromRawValue(pair.ShortValue);
break;
case 421:
item.AmbientColorInt = (pair.IntegerValue);
break;
case 431:
item.AmbientColorName = (pair.StringValue);
break;
case (int)DxfXDataType.ApplicationName:
item.XData = DxfXData.FromBuffer(buffer, pair.StringValue);
break;
default:
item.TrySetPair(pair);
break;
}
}
return item;
}
internal static void SwallowTable(DxfCodePairBufferReader buffer)
{
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
buffer.Advance();
if (DxfTablesSection.IsTableEnd(pair))
break;
}
}
internal static DxfTable FromBuffer(DxfCodePairBufferReader buffer)
{
var pair = buffer.Peek();
buffer.Advance();
if (pair.Code != 2)
{
throw new DxfReadException("Expected table type.", pair);
}
var tableType = pair.StringValue;
// read common table values
var commonValues = new List<DxfCodePair>();
var groups = new List<DxfCodePairGroup>();
pair = buffer.Peek();
while (pair != null && pair.Code != 0)
{
buffer.Advance();
if (pair.Code == DxfCodePairGroup.GroupCodeNumber)
{
var groupName = DxfCodePairGroup.GetGroupName(pair.StringValue);
groups.Add(DxfCodePairGroup.FromBuffer(buffer, groupName));
}
else
{
commonValues.Add(pair);
}
pair = buffer.Peek();
}
DxfTable result;
switch (tableType)
{
case DxfTable.AppIdText:
result = DxfAppIdTable.ReadFromBuffer(buffer);
break;
case DxfTable.BlockRecordText:
result = DxfBlockRecordTable.ReadFromBuffer(buffer);
break;
case DxfTable.DimStyleText:
result = DxfDimStyleTable.ReadFromBuffer(buffer);
break;
case DxfTable.LayerText:
result = DxfLayerTable.ReadFromBuffer(buffer);
break;
case DxfTable.LTypeText:
result = DxfLTypeTable.ReadFromBuffer(buffer);
break;
case DxfTable.StyleText:
result = DxfStyleTable.ReadFromBuffer(buffer);
break;
case DxfTable.UcsText:
result = DxfUcsTable.ReadFromBuffer(buffer);
break;
case DxfTable.ViewText:
result = DxfViewTable.ReadFromBuffer(buffer);
break;
case DxfTable.ViewPortText:
result = DxfViewPortTable.ReadFromBuffer(buffer);
break;
default:
SwallowTable(buffer);
result = null;
break;
}
if (result != null)
{
// set common values
foreach (var common in commonValues)
{
switch (common.Code)
{
case 5:
result.Handle = DxfCommonConverters.UIntHandle(common.StringValue);
break;
case 70:
result.MaxEntries = common.ShortValue;
break;
case 330:
result.OwnerHandle = DxfCommonConverters.UIntHandle(common.StringValue);
break;
}
}
result.ExtensionDataGroups.AddRange(groups);
result.AfterRead();
}
return result;
}
internal static DxfBlockRecord FromBuffer(DxfCodePairBufferReader buffer)
{
var item = new DxfBlockRecord();
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (pair.Code == 0)
{
break;
}
buffer.Advance();
switch (pair.Code)
{
case DxfCodePairGroup.GroupCodeNumber:
var groupName = DxfCodePairGroup.GetGroupName(pair.StringValue);
item.ExtensionDataGroups.Add(DxfCodePairGroup.FromBuffer(buffer, groupName));
break;
case 340:
item.LayoutHandle = UIntHandle(pair.StringValue);
break;
case 70:
item.InsertionUnits = (DxfUnits)(pair.ShortValue);
break;
case 280:
item.Explodability = BoolShort(pair.ShortValue);
break;
case 281:
item.Scalability = BoolShort(pair.ShortValue);
break;
case 310:
item._bitmapPreviewData.Add((pair.StringValue));
break;
case (int)DxfXDataType.ApplicationName:
item.XData = DxfXData.FromBuffer(buffer, pair.StringValue);
break;
default:
item.TrySetPair(pair);
break;
}
}
return item;
}
internal override DxfObject PopulateFromBuffer(DxfCodePairBufferReader buffer)
{
int code_280_index = 0;
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (pair.Code == 0)
{
break;
}
while (this.TrySetExtensionData(pair, buffer))
{
pair = buffer.Peek();
}
switch (pair.Code)
{
case 3:
this.Description = (pair.StringValue);
buffer.Advance();
break;
case 7:
var style = DxfTableCellStyle.FromBuffer(buffer);
CellStyles.Add(style);
break;
case 40:
this.HorizontalCellMargin = (pair.DoubleValue);
buffer.Advance();
break;
case 41:
this.VerticalCellMargin = (pair.DoubleValue);
buffer.Advance();
break;
case 70:
this.FlowDirection = (DxfFlowDirection)(pair.ShortValue);
buffer.Advance();
break;
case 71:
this.Flags = (pair.ShortValue);
buffer.Advance();
break;
case 280:
switch (code_280_index)
{
case 0:
this.Version = (DxfVersion)(pair.ShortValue);
code_280_index++;
break;
case 1:
this.IsTitleSuppressed = BoolShort(pair.ShortValue);
code_280_index++;
break;
default:
Debug.Assert(false, "Unexpected extra values for code 280");
break;
}
buffer.Advance();
break;
case 281:
this.IsColumnHeadingSuppressed = BoolShort(pair.ShortValue);
buffer.Advance();
break;
default:
if (!base.TrySetPair(pair))
{
ExcessCodePairs.Add(pair);
}
buffer.Advance();
break;
}
}
return(PostParse());
}
internal static DxfDimStyle FromBuffer(DxfCodePairBufferReader buffer)
{
var item = new DxfDimStyle();
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (pair.Code == 0)
{
break;
}
buffer.Advance();
switch (pair.Code)
{
case 70:
item.StandardFlags = (int)pair.ShortValue;
break;
case DxfCodePairGroup.GroupCodeNumber:
var groupName = DxfCodePairGroup.GetGroupName(pair.StringValue);
item.ExtensionDataGroups.Add(DxfCodePairGroup.FromBuffer(buffer, groupName));
break;
case 3:
item.DimensioningSuffix = (pair.StringValue);
break;
case 4:
item.AlternateDimensioningSuffix = (pair.StringValue);
break;
case 5:
item.ArrowBlockName = (pair.StringValue);
break;
case 6:
item.FirstArrowBlockName = (pair.StringValue);
break;
case 7:
item.SecondArrowBlockName = (pair.StringValue);
break;
case 40:
item.DimensioningScaleFactor = (pair.DoubleValue);
break;
case 41:
item.DimensioningArrowSize = (pair.DoubleValue);
break;
case 42:
item.DimensionExtensionLineOffset = (pair.DoubleValue);
break;
case 43:
item.DimensionLineIncrement = (pair.DoubleValue);
break;
case 44:
item.DimensionExtensionLineExtension = (pair.DoubleValue);
break;
case 45:
item.DimensionDistanceRoundingValue = (pair.DoubleValue);
break;
case 46:
item.DimensionLineExtension = (pair.DoubleValue);
break;
case 47:
item.DimensionPlusTolerance = (pair.DoubleValue);
break;
case 48:
item.DimensionMinusTolerance = (pair.DoubleValue);
break;
case 140:
item.DimensioningTextHeight = (pair.DoubleValue);
break;
case 141:
item.CenterMarkSize = (pair.DoubleValue);
break;
case 142:
item.DimensioningTickSize = (pair.DoubleValue);
break;
case 143:
item.AlternateDimensioningScaleFactor = (pair.DoubleValue);
break;
case 144:
item.DimensionLinearMeasurementScaleFactor = (pair.DoubleValue);
break;
case 145:
item.DimensionVerticalTextPosition = (pair.DoubleValue);
break;
case 146:
item.DimensionToleranceDisplacScaleFactor = (pair.DoubleValue);
break;
case 147:
item.DimensionLineGap = (pair.DoubleValue);
break;
case 148:
item.AlternateDimensioningUnitRounding = (pair.DoubleValue);
break;
case 71:
item.GenerateDimensionTolerances = BoolShort(pair.ShortValue);
break;
case 72:
item.GenerateDimensionLimits = BoolShort(pair.ShortValue);
break;
case 73:
item.DimensionTextInsideHorizontal = BoolShort(pair.ShortValue);
break;
case 74:
item.DimensionTextOutsideHorizontal = BoolShort(pair.ShortValue);
break;
case 75:
item.SuppressFirstDimensionExtensionLine = BoolShort(pair.ShortValue);
break;
case 76:
item.SuppressSecondDimensionExtensionLine = BoolShort(pair.ShortValue);
break;
case 77:
item.TextAboveDimensionLine = BoolShort(pair.ShortValue);
break;
case 78:
item.DimensionUnitZeroSuppression = (DxfUnitZeroSuppression)(pair.ShortValue);
break;
case 79:
item.DimensionAngleZeroSuppression = (DxfUnitZeroSuppression)(pair.ShortValue);
break;
case 170:
item.UseAlternateDimensioning = BoolShort(pair.ShortValue);
break;
case 171:
item.AlternateDimensioningDecimalPlaces = (pair.ShortValue);
break;
case 172:
item.ForceDimensionLineExtensionsOutsideIfTextExists = BoolShort(pair.ShortValue);
break;
case 173:
item.UseSeparateArrowBlocksForDimensions = BoolShort(pair.ShortValue);
break;
case 174:
item.ForceDimensionTextInsideExtensions = BoolShort(pair.ShortValue);
break;
case 175:
item.SuppressOutsideExtensionDimensionLines = BoolShort(pair.ShortValue);
break;
case 176:
item.DimensionLineColor = DxfColor.FromRawValue(pair.ShortValue);
break;
case 177:
item.DimensionExtensionLineColor = DxfColor.FromRawValue(pair.ShortValue);
break;
case 178:
item.DimensionTextColor = DxfColor.FromRawValue(pair.ShortValue);
break;
case 179:
item.AngularDimensionPrecision = (pair.ShortValue);
break;
case 270:
item.DimensionUnitFormat = (DxfUnitFormat)(pair.ShortValue);
break;
case 271:
item.DimensionUnitToleranceDecimalPlaces = (pair.ShortValue);
break;
case 272:
item.DimensionToleranceDecimalPlaces = (pair.ShortValue);
break;
case 273:
item.AlternateDimensioningUnits = (DxfUnitFormat)(pair.ShortValue);
break;
case 274:
item.AlternateDimensioningToleranceDecimalPlaces = (pair.ShortValue);
break;
case 275:
item.DimensioningAngleFormat = (DxfAngleFormat)(pair.ShortValue);
break;
case 276:
item.DimensionPrecision = (pair.ShortValue);
break;
case 277:
item.DimensionNonAngularUnits = (DxfNonAngularUnits)(pair.ShortValue);
break;
case 278:
item.DimensionDecimalSeparatorChar = (char)(pair.ShortValue);
break;
case 279:
item.DimensionTextMovementRule = (DxfDimensionTextMovementRule)(pair.ShortValue);
break;
case 280:
item.DimensionTextJustification = (DxfDimensionTextJustification)(pair.ShortValue);
break;
case 283:
item.DimensionToleranceVerticalJustification = (DxfJustification)(pair.ShortValue);
break;
case 284:
item.DimensionToleranceZeroSuppression = (DxfUnitZeroSuppression)(pair.ShortValue);
break;
case 285:
item.AlternateDimensioningZeroSupression = (DxfUnitZeroSuppression)(pair.ShortValue);
break;
case 286:
item.AlternateDimensioningToleranceZeroSupression = (DxfUnitZeroSuppression)(pair.ShortValue);
break;
case 287:
item.DimensionTextAndArrowPlacement = (DxfDimensionFit)(pair.ShortValue);
break;
case 288:
item.DimensionCursorControlsTextPosition = BoolShort(pair.ShortValue);
break;
case 289:
item.DimensionTextAndArrowPlacement = (DxfDimensionFit)(pair.ShortValue);
break;
case 340:
item.DimensionTextStyle = (pair.StringValue);
break;
case 341:
item.DimensionLeaderBlockName = (pair.StringValue);
break;
case 342:
item.ArrowBlockName = (pair.StringValue);
break;
case 343:
item.FirstArrowBlockName = (pair.StringValue);
break;
case 344:
item.SecondArrowBlockName = (pair.StringValue);
break;
case 371:
item.DimensionLineWeight = DxfLineWeight.FromRawValue(pair.ShortValue);
break;
case 372:
item.DimensionExtensionLineWeight = DxfLineWeight.FromRawValue(pair.ShortValue);
break;
case (int)DxfXDataType.ApplicationName:
item.XData = DxfXData.FromBuffer(buffer, pair.StringValue);
break;
default:
item.TrySetPair(pair);
break;
}
}
return item;
}
internal static DxfLineType FromBuffer(DxfCodePairBufferReader buffer)
{
var item = new DxfLineType();
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (pair.Code == 0)
{
break;
}
buffer.Advance();
switch (pair.Code)
{
case 70:
item.StandardFlags = (int)pair.ShortValue;
break;
case DxfCodePairGroup.GroupCodeNumber:
var groupName = DxfCodePairGroup.GetGroupName(pair.StringValue);
item.ExtensionDataGroups.Add(DxfCodePairGroup.FromBuffer(buffer, groupName));
break;
case 3:
item.Description = (pair.StringValue);
break;
case 72:
item.AlignmentCode = (pair.ShortValue);
break;
case 73:
item.ElementCount = (pair.ShortValue);
break;
case 40:
item.TotalPatternLength = (pair.DoubleValue);
break;
case 49:
item.DashDotSpaceLengths.Add((pair.DoubleValue));
break;
case 74:
item.ComplexLinetypeElementTypes.Add((pair.ShortValue));
break;
case 75:
item.ShapeNumbers.Add((pair.ShortValue));
break;
case 340:
item.StylePointers.Add((pair.StringValue));
break;
case 46:
item.ScaleValues.Add((pair.DoubleValue));
break;
case 50:
item.RotationAngles.Add((pair.DoubleValue));
break;
case 44:
item.XOffsets.Add((pair.DoubleValue));
break;
case 45:
item.YOffsets.Add((pair.DoubleValue));
break;
case 9:
item.TextStrings.Add((pair.StringValue));
break;
case (int)DxfXDataType.ApplicationName:
item.XData = DxfXData.FromBuffer(buffer, pair.StringValue);
break;
default:
item.TrySetPair(pair);
break;
}
}
return item;
}
internal static DxfBlock FromBuffer(DxfCodePairBufferReader buffer, DxfAcadVersion version)
{
if (!buffer.ItemsRemain)
{
return null;
}
var block = new DxfBlock();
var readingBlockStart = true;
var readingBlockEnd = false;
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (DxfCodePair.IsSectionEnd(pair))
{
// done reading blocks
buffer.Advance(); // swallow (0, ENDSEC)
break;
}
else if (IsBlockStart(pair))
{
if (readingBlockStart)
{
// if another block is found, stop reading this one because some blocks don't specify (0, ENDBLK)
break;
}
break;
}
else if (IsBlockEnd(pair))
{
if (!readingBlockStart) throw new DxfReadException("Unexpected block end", pair);
readingBlockStart = false;
readingBlockEnd = true;
buffer.Advance(); // swallow (0, ENDBLK)
}
else if (pair.Code == 0)
{
// should be an entity
var entity = DxfEntity.FromBuffer(buffer);
Debug.Assert(entity != null);
if (entity != null)
block.Entities.Add(entity);
}
else
{
// read value pair
if (readingBlockStart)
{
buffer.Advance();
switch (pair.Code)
{
case 1:
block.XrefName = pair.StringValue;
break;
case 2:
block.Name = pair.StringValue;
break;
case 3:
break;
case 4:
block.Description = pair.StringValue;
break;
case 5:
((IDxfItemInternal)block).Handle = DxfCommonConverters.UIntHandle(pair.StringValue);
break;
case 8:
block.Layer = pair.StringValue;
break;
case 10:
block.BasePoint.X = pair.DoubleValue;
break;
case 20:
block.BasePoint.Y = pair.DoubleValue;
break;
case 30:
block.BasePoint.Z = pair.DoubleValue;
break;
case 67:
block.IsInPaperSpace = DxfCommonConverters.BoolShort(pair.ShortValue);
break;
case 70:
block.Flags = pair.ShortValue;
break;
case 330:
((IDxfItemInternal)block).OwnerHandle = DxfCommonConverters.UIntHandle(pair.StringValue);
break;
case DxfCodePairGroup.GroupCodeNumber:
var groupName = DxfCodePairGroup.GetGroupName(pair.StringValue);
block.ExtensionDataGroups.Add(DxfCodePairGroup.FromBuffer(buffer, groupName));
break;
case (int)DxfXDataType.ApplicationName:
block.XData = DxfXData.FromBuffer(buffer, pair.StringValue);
break;
}
}
else if (readingBlockEnd)
{
block.EndBlock.ApplyCodePairs(buffer, version);
}
else
{
throw new DxfReadException("Unexpected pair in block", pair);
}
}
}
return block;
}
internal static DxfTableCellStyle FromBuffer(DxfCodePairBufferReader buffer)
{
var seenName = false;
var style = new DxfTableCellStyle();
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
switch (pair.Code)
{
case 7:
if (seenName)
{
// found another cell style; return without consuming
return(style);
}
else
{
style.Name = pair.StringValue;
seenName = true;
}
break;
case 62:
style.TextColor = DxfColor.FromRawValue(pair.ShortValue);
break;
case 63:
style.CellFillColor = DxfColor.FromRawValue(pair.ShortValue);
break;
case 64:
style.Border1Color = DxfColor.FromRawValue(pair.ShortValue);
break;
case 65:
style.Border2Color = DxfColor.FromRawValue(pair.ShortValue);
break;
case 66:
style.Border3Color = DxfColor.FromRawValue(pair.ShortValue);
break;
case 67:
style.Border4Color = DxfColor.FromRawValue(pair.ShortValue);
break;
case 68:
style.Border5Color = DxfColor.FromRawValue(pair.ShortValue);
break;
case 69:
style.Border6Color = DxfColor.FromRawValue(pair.ShortValue);
break;
case 90:
style.CellDataType = pair.IntegerValue;
break;
case 91:
style.CellUnitType = pair.IntegerValue;
break;
case 140:
style.TextHeight = pair.DoubleValue;
break;
case 170:
style.CellAlignment = pair.ShortValue;
break;
case 274:
style.BorderLineweight1 = pair.ShortValue;
break;
case 275:
style.BorderLineweight2 = pair.ShortValue;
break;
case 276:
style.BorderLineweight3 = pair.ShortValue;
break;
case 277:
style.BorderLineweight4 = pair.ShortValue;
break;
case 278:
style.BorderLineweight5 = pair.ShortValue;
break;
case 279:
style.BorderLineweight6 = pair.ShortValue;
break;
case 283:
style.IsBackgroundColorEnabled = DxfCommonConverters.BoolShort(pair.ShortValue);
break;
case 284:
style.IsBorder1Visible = DxfCommonConverters.BoolShort(pair.ShortValue);
break;
case 285:
style.IsBorder2Visible = DxfCommonConverters.BoolShort(pair.ShortValue);
break;
case 286:
style.IsBorder3Visible = DxfCommonConverters.BoolShort(pair.ShortValue);
break;
case 287:
style.IsBorder4Visible = DxfCommonConverters.BoolShort(pair.ShortValue);
break;
case 288:
style.IsBorder5Visible = DxfCommonConverters.BoolShort(pair.ShortValue);
break;
case 289:
style.IsBorder6Visible = DxfCommonConverters.BoolShort(pair.ShortValue);
break;
default:
// unknown code, return without consuming the pair
return(style);
}
buffer.Advance();
}
return(style);
}
internal static DxfView FromBuffer(DxfCodePairBufferReader buffer)
{
var item = new DxfView();
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (pair.Code == 0)
{
break;
}
buffer.Advance();
switch (pair.Code)
{
case 70:
item.StandardFlags = (int)pair.ShortValue;
break;
case DxfCodePairGroup.GroupCodeNumber:
var groupName = DxfCodePairGroup.GetGroupName(pair.StringValue);
item.ExtensionDataGroups.Add(DxfCodePairGroup.FromBuffer(buffer, groupName));
break;
case 40:
item.ViewHeight = (pair.DoubleValue);
break;
case 10:
item.ViewCenterPoint.X = (pair.DoubleValue);
break;
case 20:
item.ViewCenterPoint.Y = (pair.DoubleValue);
break;
case 41:
item.ViewWidth = (pair.DoubleValue);
break;
case 11:
item.ViewDirection.X = (pair.DoubleValue);
break;
case 21:
item.ViewDirection.Y = (pair.DoubleValue);
break;
case 31:
item.ViewDirection.Z = (pair.DoubleValue);
break;
case 12:
item.TargetPoint.X = (pair.DoubleValue);
break;
case 22:
item.TargetPoint.Y = (pair.DoubleValue);
break;
case 32:
item.TargetPoint.Z = (pair.DoubleValue);
break;
case 42:
item.LensLength = (pair.DoubleValue);
break;
case 43:
item.FrontClippingPlane = (pair.DoubleValue);
break;
case 44:
item.BackClippingPlane = (pair.DoubleValue);
break;
case 50:
item.TwistAngle = (pair.DoubleValue);
break;
case 71:
item.ViewMode = (pair.ShortValue);
break;
case 281:
item.RenderMode = (DxfViewRenderMode)(pair.ShortValue);
break;
case 72:
item.IsAssociatedUCSPresent = BoolShort(pair.ShortValue);
break;
case 73:
item.IsCameraPlottable = BoolShort(pair.ShortValue);
break;
case 332:
item.BackgroundObjectPointer = UIntHandle(pair.StringValue);
break;
case 334:
item.SelectionObjectPointer = UIntHandle(pair.StringValue);
break;
case 348:
item.VisualStyleObjectPointer = UIntHandle(pair.StringValue);
break;
case 361:
item.SunOwnershipPointer = UIntHandle(pair.StringValue);
break;
case 110:
item.UCSOrigin.X = (pair.DoubleValue);
break;
case 120:
item.UCSOrigin.Y = (pair.DoubleValue);
break;
case 130:
item.UCSOrigin.Z = (pair.DoubleValue);
break;
case 111:
item.UCSXAxis.X = (pair.DoubleValue);
break;
case 121:
item.UCSXAxis.Y = (pair.DoubleValue);
break;
case 131:
item.UCSXAxis.Z = (pair.DoubleValue);
break;
case 112:
item.UCSYAxis.X = (pair.DoubleValue);
break;
case 122:
item.UCSYAxis.Y = (pair.DoubleValue);
break;
case 132:
item.UCSYAxis.Z = (pair.DoubleValue);
break;
case 79:
item.OrthographicViewType = (DxfOrthographicViewType)(pair.ShortValue);
break;
case 146:
item.UCSElevation = (pair.DoubleValue);
break;
case 345:
item.UCSHandle = UIntHandle(pair.StringValue);
break;
case 346:
item.BaseUCSHandle = UIntHandle(pair.StringValue);
break;
case (int)DxfXDataType.ApplicationName:
item.XData = DxfXData.FromBuffer(buffer, pair.StringValue);
break;
default:
item.TrySetPair(pair);
break;
}
}
return item;
}
internal static DxfLayer FromBuffer(DxfCodePairBufferReader buffer)
{
var item = new DxfLayer();
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (pair.Code == 0)
{
break;
}
buffer.Advance();
switch (pair.Code)
{
case 70:
item.StandardFlags = (int)pair.ShortValue;
break;
case DxfCodePairGroup.GroupCodeNumber:
var groupName = DxfCodePairGroup.GetGroupName(pair.StringValue);
item.ExtensionDataGroups.Add(DxfCodePairGroup.FromBuffer(buffer, groupName));
break;
case 62:
item.Color = DxfColor.FromRawValue(pair.ShortValue);
break;
case 6:
item.LinetypeName = (pair.StringValue);
break;
case 290:
item.IsLayerPlotted = (pair.BoolValue);
break;
case 370:
item.LineWeight = DxfLineWeight.FromRawValue(pair.ShortValue);
break;
case 390:
item.PlotStylePointer = UIntHandle(pair.StringValue);
break;
case 347:
item.MaterialHandle = UIntHandle(pair.StringValue);
break;
case (int)DxfXDataType.ApplicationName:
item.XData = DxfXData.FromBuffer(buffer, pair.StringValue);
break;
default:
item.TrySetPair(pair);
break;
}
}
return item;
}
internal static DxfClass FromBuffer(DxfCodePairBufferReader buffer, DxfAcadVersion version)
{
var cls = new DxfClass();
// version R13 has varying values for the leading 0 code pair
var pair = buffer.Peek();
Debug.Assert(pair.Code == 0);
if (version <= DxfAcadVersion.R13)
{
cls.ClassDxfRecordName = pair.StringValue;
}
else
{
// swallow (0, CLASS)
Debug.Assert(pair.StringValue == ClassText);
}
buffer.Advance();
while (buffer.ItemsRemain)
{
pair = buffer.Peek();
if (pair.Code == 0)
{
break;
}
buffer.Advance();
switch (pair.Code)
{
case 1:
if (version <= DxfAcadVersion.R13)
cls.CppClassName = pair.StringValue;
else
cls.ClassDxfRecordName = pair.StringValue;
break;
case 2:
if (version <= DxfAcadVersion.R13)
cls.ApplicationName = pair.StringValue;
else
cls.CppClassName = pair.StringValue;
break;
case 3:
if (version >= DxfAcadVersion.R14)
cls.ApplicationName = pair.StringValue;
break;
case 90:
if (version <= DxfAcadVersion.R13)
cls.ClassVersionNumber = pair.IntegerValue;
else
cls.ProxyCapabilities = new DxfProxyCapabilities(pair.IntegerValue);
break;
case 91:
cls.InstanceCount = pair.IntegerValue;
break;
case 280:
cls.WasClassLoadedWithFile = !DxfCommonConverters.BoolShort(pair.ShortValue);
break;
case 281:
cls.IsEntity = DxfCommonConverters.BoolShort(pair.ShortValue);
break;
}
}
return cls;
}
