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