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# Purpose: handle text styles
# Created: 06.01.2014
# Copyright (C) 2014, Manfred Moitzi
# License: MIT License
from __future__ import unicode_literals
__author__ = "mozman <mozman@gmx.at>"
from .dxfentity import DXFEntity
from .layers import Table
from .dxfattr import DXFAttr, DXFAttributes, DefSubclass
from .tags import ClassifiedTags
class Style(object):
def __init__(self, wrapper):
self.name = wrapper.get_dxf_attrib('name')
self.height = wrapper.get_dxf_attrib('height')
self.width = wrapper.get_dxf_attrib('width')
self.oblique = wrapper.get_dxf_attrib('oblique')
# backward & mirror_y was first and stays for compatibility
self.backward = bool(wrapper.get_dxf_attrib('generation_flags') & 2)
self.mirror_y = bool(wrapper.get_dxf_attrib('generation_flags') & 4)
self.is_backwards = self.backward
self.is_upside_down = self.mirror_y
self.font = wrapper.get_dxf_attrib('font')
self.bigfont = wrapper.get_dxf_attrib('bigfont', "")
class StyleTable(Table):
name = 'styles'
@staticmethod
def from_tags(tags, drawing):
dxfversion = drawing.dxfversion
styles = StyleTable()
for entrytags in styles._classified_tags(tags):
dxfstyle = styles.wrap(entrytags, dxfversion)
styles._table_entries[dxfstyle.get_dxf_attrib('name')] = Style(dxfstyle)
return styles
@staticmethod
def wrap(tags, dxfversion):
return DXF12Style(tags) if dxfversion == "AC1009" else DXF13Style(tags)
class DXF12Style(DXFEntity):
DXFATTRIBS = DXFAttributes(DefSubclass(None, {
'handle': DXFAttr(5),
'name': DXFAttr(2),
'flags': DXFAttr(70),
'height': DXFAttr(40), # fixed height, 0 if not fixed
'width': DXFAttr(41), # width factor
'oblique': DXFAttr(50), # oblique angle in degree, 0 = vertical
'generation_flags': DXFAttr(71), # 2 = backward, 4 = mirrored in Y
'last_height': DXFAttr(42), # last height used
'font': DXFAttr(3), # primary font file name
'bigfont': DXFAttr(4), # big font name, blank if none
}))
none_subclass = DefSubclass(None, {'handle': DXFAttr(5)})
symbol_subclass = DefSubclass('AcDbSymbolTableRecord', {})
style_subclass = DefSubclass('AcDbTextStyleTableRecord', {
'name': DXFAttr(2),
'flags': DXFAttr(70),
'height': DXFAttr(40), # fixed height, 0 if not fixed
'width': DXFAttr(41), # width factor
'oblique': DXFAttr(50), # oblique angle in degree, 0 = vertical
'generation_flags': DXFAttr(71), # 2 = backward, 4 = mirrored in Y
'last_height': DXFAttr(42), # last height used
'font': DXFAttr(3), # primary font file name
'bigfont': DXFAttr(4), # big font name, blank if none
})
class DXF13Style(DXF12Style):
DXFATTRIBS = DXFAttributes(none_subclass, symbol_subclass, style_subclass)
DEFAULT_STYLE = """ 0
STYLE
2
STANDARD
70
0
40
0.0
41
1.0
50
0.0
71
0
42
1.0
3
Arial
4
"""
default_text_style = Style(DXF12Style(ClassifiedTags.from_text(DEFAULT_STYLE)))
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