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# SPDX-License-Identifier: MIT
# Copyright 2012 Manfred Moitzi
# Purpose: handle tables section
# Created: 21.07.2012, taken from my ezdxf project
from __future__ import unicode_literals
__author__ = "mozman <mozman@gmx.at>"
from .defaultchunk import iterchunks, DefaultChunk
from .layers import LayerTable
from .styles import StyleTable
from .linetypes import LinetypeTable
TABLENAMES = {
'layer': 'layers',
'ltype': 'linetypes',
'appid': 'appids',
'dimstyle': 'dimstyles',
'style': 'styles',
'ucs': 'ucs',
'view': 'views',
'vport': 'viewports',
'block_record': 'block_records',
}
def tablename(dxfname):
""" Translate DXF-table-name to attribute-name. ('LAYER' -> 'layers') """
name = dxfname.lower()
return TABLENAMES.get(name, name+'s')
class DefaultDrawing(object):
dxfversion = 'AC1009'
encoding = 'cp1252'
class TablesSection(object):
name = 'tables'
def __init__(self):
self._tables = dict()
self._create_default_tables()
def _create_default_tables(self):
for cls in TABLESMAP.values():
table = cls()
self._tables[table.name] = table
@staticmethod
def from_tags(tags, drawing):
tables_section = TablesSection()
tables_section._setup_tables(tags)
return tables_section
def _setup_tables(self, tags):
def name(table):
return table[1].value
def skiptags(tags, count):
for i in range(count):
next(tags)
return tags
itertags = skiptags(iter(tags), 2) # (0, 'SECTION'), (2, 'TABLES')
for table in iterchunks(itertags, stoptag='ENDSEC', endofchunk='ENDTAB'):
table_class = table_factory(name(table))
if table_class is not None:
new_table = table_class.from_tags(table)
self._tables[new_table.name] = new_table
def __getattr__(self, key):
try:
return self._tables[key]
except KeyError:
raise AttributeError(key)
# support for further tables types are possible
TABLESMAP = {
'LAYER': LayerTable,
'STYLE': StyleTable,
'LTYPE': LinetypeTable,
}
def table_factory(name):
return TABLESMAP.get(name, None)
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