kopia lustrzana https://github.com/inkstitch/inkstitch
44 wiersze
1.4 KiB
Python
44 wiersze
1.4 KiB
Python
from inkex import transforms
|
|
|
|
from ..utils import Point, cache, string_to_floats
|
|
from .tags import INKSCAPE_LABEL, SODIPODI_GUIDE, SODIPODI_NAMEDVIEW
|
|
from .units import get_doc_size, get_viewbox_transform
|
|
|
|
|
|
class InkscapeGuide(object):
|
|
def __init__(self, node):
|
|
self.node = node
|
|
self.svg = node.getroottree().getroot()
|
|
|
|
self._parse()
|
|
|
|
def _parse(self):
|
|
self.label = self.node.get(INKSCAPE_LABEL, "")
|
|
|
|
doc_size = list(get_doc_size(self.svg))
|
|
|
|
# convert the size from viewbox-relative to real-world pixels
|
|
viewbox_transform = get_viewbox_transform(self.svg)
|
|
viewbox_transform = transforms.Transform(-transforms.Transform(viewbox_transform)).apply_to_point(doc_size)
|
|
|
|
self.position = Point(*string_to_floats(self.node.get('position')))
|
|
|
|
# inkscape's Y axis is reversed from SVG's, and the guide is in inkscape coordinates
|
|
self.position.y = doc_size[1] - self.position.y
|
|
|
|
# This one baffles me. I think inkscape might have gotten the order of
|
|
# their vector wrong?
|
|
parts = string_to_floats(self.node.get('orientation'))
|
|
self.direction = Point(parts[1], parts[0])
|
|
|
|
|
|
@cache
|
|
def get_guides(svg):
|
|
"""Find all Inkscape guides and return as InkscapeGuide instances."""
|
|
|
|
namedview = svg.find(SODIPODI_NAMEDVIEW)
|
|
if namedview is None:
|
|
return []
|
|
|
|
return [InkscapeGuide(node) for node in namedview.findall(SODIPODI_GUIDE)]
|