public static bool TrySetExtensionData <THasXData>(this THasXData hasXData, DxfCodePair pair, DxfCodePairBufferReader buffer)
where THasXData : IDxfHasXData
{
if (pair.Code == DxfCodePairGroup.GroupCodeNumber && pair.StringValue.StartsWith("{"))
{
buffer.Advance();
var groupName = DxfCodePairGroup.GetGroupName(pair.StringValue);
hasXData.ExtensionDataGroups.Add(DxfCodePairGroup.FromBuffer(buffer, groupName));
return(true);
}
else if (pair.Code >= 1000)
{
buffer.Advance();
DxfXData.PopulateFromBuffer(buffer, hasXData.XData, pair.StringValue);
return(true);
}
return(false);
}
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 = 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:
// start a new element
item.Elements.Add(new DxfLineTypeElement()
{
DashDotSpaceLength = pair.DoubleValue
});
break;
case 74:
// add to last element
if (item.Elements.Count > 0)
{
item.Elements.Last().ComplexFlags = pair.ShortValue;
}
break;
case 75:
// add to last element
if (item.Elements.Count > 0)
{
item.Elements.Last().ShapeNumber = pair.ShortValue;
}
break;
case 340:
// add to last element
if (item.Elements.Count > 0)
{
item.Elements.Last().StylePointer.Handle = UIntHandle(pair.StringValue);
}
break;
case 46:
// add to last element
if (item.Elements.Count > 0)
{
item.Elements.Last().ScaleValues.Add(pair.DoubleValue);
}
break;
case 50:
// add to last element
if (item.Elements.Count > 0)
{
item.Elements.Last().RotationAngle = pair.DoubleValue;
}
break;
case 44:
// add to last element, start a new offset value
if (item.Elements.Count > 0)
{
item.Elements.Last().Offsets.Add(new DxfVector(pair.DoubleValue, 0.0, 0.0));
}
break;
case 45:
// add to last element, add to last offset value
if (item.Elements.Count > 0 && item.Elements.Last().Offsets.Count > 0)
{
var offsets = item.Elements.Last().Offsets;
offsets[offsets.Count - 1] = offsets[offsets.Count - 1].WithUpdatedY(pair.DoubleValue);
}
break;
case 9:
// add to last element
if (item.Elements.Count > 0)
{
item.Elements.Last().TextString = pair.StringValue;
}
break;
case (int)DxfXDataType.ApplicationName:
DxfXData.PopulateFromBuffer(buffer, item.XData, pair.StringValue);
break;
default:
item.TrySetPair(pair);
break;
}
}
return(item);
}