io_import_dxf/dxfgrabber/linetypes.py

   1 # SPDX-License-Identifier: MIT
   2 # Copyright 2014 Manfred Moitzi
   3
   4 # Purpose: handle linetypes table
   5 # Created: 06.01.2014
   6 # License: MIT License
   7
   8 __author__ = "mozman <mozman@gmx.at>"
   9
  10 from .layers import Table
  11
  12
  13 class Linetype(object):
  14     def __init__(self, tags):
  15         self.name = ""
  16         self.description = ""
  17         self.length = 0  # overall length of the pattern
  18         self.pattern = []  # list of floats: value>0: line, value<0: gap, value=0: dot
  19         for code, value in tags.plain_tags():
  20             if code == 2:
  21                 self.name = value
  22             elif code == 3:
  23                 self.description = value
  24             elif code == 40:
  25                 self.length = value
  26             elif code == 49:
  27                 self.pattern.append(value)
  28
  29
  30 class LinetypeTable(Table):
  31     name = 'linetypes'
  32
  33     @staticmethod
  34     def from_tags(tags):
  35         styles = LinetypeTable()
  36         for entry_tags in styles.entry_tags(tags):
  37             style = Linetype(entry_tags)
  38             styles._table_entries[style.name] = style
  39         return styles