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# Authors: see git history
#
# Copyright (c) 2022 Authors
# Licensed under the GNU GPL version 3.0 or later. See the file LICENSE for details.
from copy import deepcopy
from os import path
import inkex
from shapely import geometry as shgeo
from .svg.tags import EMBROIDERABLE_TAGS
from .utils import cache, get_bundled_dir
MARKER = ['pattern', 'guide-line']
def ensure_marker(svg, marker):
marker_path = ".//*[@id='inkstitch-%s-marker']" % marker
if svg.defs.find(marker_path) is None:
svg.defs.append(deepcopy(_marker_svg().defs.find(marker_path)))
@cache
def _marker_svg():
marker_path = path.join(get_bundled_dir("symbols"), "marker.svg")
with open(marker_path) as marker_file:
return inkex.load_svg(marker_file).getroot()
def set_marker(node, position, marker):
ensure_marker(node.getroottree().getroot(), marker)
# attach marker to node
style = node.get('style') or ''
style = style.split(";")
style = [i for i in style if not i.startswith('marker-%s' % position)]
style.append('marker-%s:url(#inkstitch-%s-marker)' % (position, marker))
node.set('style', ";".join(style))
def get_marker_elements(node, marker, get_fills=True, get_strokes=True):
from .elements import EmbroideryElement
from .elements.stroke import Stroke
fills = []
strokes = []
xpath = "./parent::svg:g/*[contains(@style, 'marker-start:url(#inkstitch-%s-marker)')]" % marker
markers = node.xpath(xpath, namespaces=inkex.NSS)
for marker in markers:
if marker.tag not in EMBROIDERABLE_TAGS:
continue
element = EmbroideryElement(marker)
fill = element.get_style('fill')
stroke = element.get_style('stroke')
if get_fills and fill is not None:
fill = Stroke(marker).paths
linear_rings = [shgeo.LinearRing(path) for path in fill]
for ring in linear_rings:
fills.append(shgeo.Polygon(ring))
if get_strokes and stroke is not None:
stroke = Stroke(marker).paths
line_strings = [shgeo.LineString(path) for path in stroke]
strokes.append(shgeo.MultiLineString(line_strings))
return {'fill': fills, 'stroke': strokes}
def has_marker(node, marker=list()):
if not marker:
marker = MARKER
for m in marker:
style = node.get('style') or ''
if "marker-start:url(#inkstitch-%s-marker)" % m in style:
return True
return False
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