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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
from inkex import NSS, Style, load_svg
from shapely import geometry as shgeo
from .svg.tags import EMBROIDERABLE_TAGS
from .utils import cache, get_bundled_dir
MARKER = ['anchor-line', 'pattern', 'guide-line']
@cache
def ensure_marker(svg, marker):
"""Make sure a marker symbol is defined in the svg"""
marker_path = ".//*[@id='inkstitch-%s-marker']" % marker
if svg.defs.find(marker_path) is None:
marker = deepcopy(_marker_svg().defs.find(marker_path))
marker.set('markerWidth', str(0.1))
svg.defs.append(marker)
def ensure_marker_symbols(group):
"""Make sure all marker symbols of an svg group is defined in the svg"""
for marker in MARKER:
xpath = ".//*[contains(@style, 'marker-start:url(#inkstitch-%s-marker')]" % marker
marked_elements = group.xpath(xpath, namespaces=NSS)
if marked_elements:
ensure_marker(group.getroottree().getroot(), marker)
for element in marked_elements:
element.style['marker-start'] = "url(#inkstitch-%s-marker)" % marker
@cache
def _marker_svg():
marker_path = path.join(get_bundled_dir("symbols"), "marker.svg")
with open(marker_path) as marker_file:
return load_svg(marker_file).getroot()
def set_marker(node, position, marker):
ensure_marker(node.getroottree().getroot(), marker)
# attach marker to node
style = node.style
style += Style(f'marker-{ position }:url(#inkstitch-{ marker }-marker)')
node.set('style', style)
def get_marker_elements(node, marker, get_fills=True, get_strokes=True, get_satins=False):
from .elements import EmbroideryElement
from .elements.fill_stitch import FillStitch
from .elements.satin_column import SatinColumn
from .elements.stroke import Stroke
fills = []
strokes = []
satins = []
# do not close marker-start:url(
# if the marker group has been copied and pasted in Inkscape it may have been duplicated with an updated id (e.g. -4)
xpath = "./parent::svg:g/*[contains(@style, 'marker-start:url(#inkstitch-%s-marker')]" % marker
markers = node.xpath(xpath, namespaces=NSS)
for marker in markers:
if marker.tag not in EMBROIDERABLE_TAGS:
continue
element = EmbroideryElement(marker)
fill = element.fill_color
stroke = element.stroke_color
if get_fills and fill is not None:
fill = FillStitch(marker).shape
fills.append(fill)
if get_strokes and stroke is not None:
stroke = Stroke(marker).unclipped_paths
line_strings = [shgeo.LineString(path) for path in stroke]
strokes.append(shgeo.MultiLineString(line_strings))
if get_satins and stroke is not None:
satin = SatinColumn(marker)
if len(satin.rails) == 2:
satins.append(satin)
return {'fill': fills, 'stroke': strokes, 'satin': satins}
def get_marker_elements_cache_key_data(node, marker):
marker_elements = get_marker_elements(node, marker, True, True, True)
marker_elements['fill'] = [shape.wkt for shape in marker_elements['fill']]
marker_elements['stroke'] = [shape.wkt for shape in marker_elements['stroke']]
marker_elements['satin'] = [satin.filtered_subpaths for satin in marker_elements['satin']]
return marker_elements
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
def is_grouped_with_marker(node):
for element in node.getparent().iterchildren():
if has_marker(element):
return True
return False
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