internal static DxfTable ReadFromBuffer(DxfCodePairBufferReader buffer)
{
var table = new DxfLayerTable();
table.Items.Clear();
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
buffer.Advance();
if (DxfTablesSection.IsTableEnd(pair))
{
break;
}
if (pair.Code == 0 && pair.StringValue == DxfTable.LayerText)
{
var item = DxfLayer.FromBuffer(buffer);
table.Items.Add(item);
}
}
return(table);
}
internal static DxfTable ReadFromBuffer(DxfCodePairBufferReader buffer)
{
var table = new DxfLayerTable();
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
buffer.Advance();
if (DxfTablesSection.IsTableEnd(pair))
{
break;
}
if (pair.Code == 0 && pair.StringValue == DxfTable.LayerText)
{
var item = DxfLayer.FromBuffer(buffer);
table.Items.Add(item);
}
}
return table;
}
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:
// entry count, read dynamically
break;
case 330:
result.OwnerHandle = DxfCommonConverters.UIntHandle(common.StringValue);
break;
}
}
foreach (var group in groups)
{
result.ExtensionDataGroups.Add(group);
}
result.AfterRead();
}
return(result);
}