def export_base_class(self, tagwriter: 'TagWriter') -> None:
""" Export base class DXF attributes and structures. (internal API) """
# 1. tag: (0, DXFTYPE)
tagwriter.write_tag2(STRUCTURE_MARKER, self.DXFTYPE)
if tagwriter.dxfversion >= DXF2000:
tagwriter.write_tag2(handle_code(self.dxf.dxftype), self.dxf.handle)
if self.appdata:
self.appdata.export_dxf(tagwriter)
if self.extension_dict:
self.extension_dict.export_dxf(tagwriter)
if self.reactors:
self.reactors.export_dxf(tagwriter)
tagwriter.write_tag2(OWNER_CODE, self.dxf.owner)
else: # DXF R12
if tagwriter.write_handles:
tagwriter.write_tag2(handle_code(self.dxf.dxftype), self.dxf.handle)
def __init__(self, processor: 'SubclassProcessor' = None, entity: 'DXFEntity' = None):
if processor:
base_class_ = processor.base_class
code = handle_code(base_class_[0].value)
# CLASS entity has no handle and TABLE also has no handle if loaded from DXF R12 file
handle = base_class_.get_first_value(code, None)
# owner is None if loaded from DXF R12 file
owner = base_class_.get_first_value(330, None)
self.rewire(entity, handle, owner)
else:
self.reset_handles()
self.rewire(entity)
