public IEnumerable <DxfCodePair> GetValuePairs(DxfAcadVersion version, bool outputHandles)
{
var list = new List <DxfCodePair>();
list.Add(new DxfCodePair(0, EndBlockText));
if (outputHandles && ((IDxfItemInternal)this).Handle != 0u)
{
list.Add(new DxfCodePair(5, DxfCommonConverters.UIntHandle(((IDxfItemInternal)this).Handle)));
}
if (Parent.XData != null)
{
Parent.XData.AddValuePairs(list, version, outputHandles);
}
if (version >= DxfAcadVersion.R14)
{
foreach (var group in ExtensionDataGroups)
{
group.AddValuePairs(list, version, outputHandles);
}
}
if (version >= DxfAcadVersion.R2000)
{
list.Add(new DxfCodePair(330, DxfCommonConverters.UIntHandle(((IDxfItemInternal)Parent).OwnerHandle)));
}
if (version >= DxfAcadVersion.R13)
{
list.Add(new DxfCodePair(100, AcDbEntityText));
}
if (Parent.IsInPaperSpace)
{
list.Add(new DxfCodePair(67, DxfCommonConverters.BoolShort(Parent.IsInPaperSpace)));
}
list.Add(new DxfCodePair(8, Parent.Layer));
if (version >= DxfAcadVersion.R13)
{
list.Add(new DxfCodePair(100, AcDbBlockEndText));
}
return(list);
}
protected static short BoolShort(bool b)
{
return DxfCommonConverters.BoolShort(b);
}
protected static bool BoolShort(short s)
{
return DxfCommonConverters.BoolShort(s);
}
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 IEnumerable<DxfCodePair> GetValuePairs(DxfAcadVersion version, bool outputHandles)
{
var list = new List<DxfCodePair>();
list.Add(new DxfCodePair(0, BlockText));
if (outputHandles && ((IDxfItemInternal)this).Handle != 0u)
{
list.Add(new DxfCodePair(5, DxfCommonConverters.UIntHandle(((IDxfItemInternal)this).Handle)));
}
if (version >= DxfAcadVersion.R14)
{
foreach (var group in ExtensionDataGroups)
{
group.AddValuePairs(list, version, outputHandles);
}
}
if (version >= DxfAcadVersion.R13)
{
if (((IDxfItemInternal)this).OwnerHandle != 0u)
{
list.Add(new DxfCodePair(330, DxfCommonConverters.UIntHandle(((IDxfItemInternal)this).OwnerHandle)));
}
list.Add(new DxfCodePair(100, AcDbEntityText));
}
if (IsInPaperSpace)
{
list.Add(new DxfCodePair(67, DxfCommonConverters.BoolShort(IsInPaperSpace)));
}
list.Add(new DxfCodePair(8, Layer));
if (version >= DxfAcadVersion.R13)
{
list.Add(new DxfCodePair(100, AcDbBlockBeginText));
}
list.Add(new DxfCodePair(2, Name));
list.Add(new DxfCodePair(70, (short)Flags));
list.Add(new DxfCodePair(10, BasePoint.X));
list.Add(new DxfCodePair(20, BasePoint.Y));
list.Add(new DxfCodePair(30, BasePoint.Z));
if (version >= DxfAcadVersion.R12)
{
list.Add(new DxfCodePair(3, Name));
}
list.Add(new DxfCodePair(1, XrefName));
if (!string.IsNullOrEmpty(Description))
{
list.Add(new DxfCodePair(4, Description));
}
// entities in blocks need handles for some applications
list.AddRange(Entities.SelectMany(e => e.GetValuePairs(version, outputHandles)));
list.AddRange(EndBlock.GetValuePairs(version, outputHandles));
return list;
}
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);
}