75 lines
2.5 KiB
Python
Executable file
75 lines
2.5 KiB
Python
Executable file
#!/usr/bin/env python3
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# coding=utf-8
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#
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# Copyright (C) 2005 Aaron Spike, aaron@ekips.org
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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"""
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Draws handles of selected paths.
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"""
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import inkex
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from inkex.paths import Path, Curve, Move, Line, Quadratic
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from inkex.transforms import Vector2d
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class Handles(inkex.EffectExtension):
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"""
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Renders the handle lines for the selected curves onto the canvas.
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"""
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def effect(self):
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for node in self.svg.selection.filter(inkex.PathElement):
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result = Path()
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prev = Vector2d()
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start = None
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for seg in node.path.to_absolute():
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if start is None:
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start = seg.end_point(start, prev)
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if isinstance(seg, Curve):
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result += [
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Move(seg.x2, seg.y2),
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Line(prev.x, prev.y),
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Move(seg.x3, seg.y3),
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Line(seg.x4, seg.y4),
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]
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elif isinstance(seg, Quadratic):
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result += [
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Move(seg.x2, seg.y2),
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Line(prev.x, prev.y),
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Move(seg.x2, seg.y2),
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Line(seg.x3, seg.y3),
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]
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prev = seg.end_point(start, prev)
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if not result:
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continue
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elem = node.getparent().add(inkex.PathElement())
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elem.path = result.transform(node.transform)
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elem.style = {
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"stroke-linejoin": "miter",
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"stroke-width": "1.0px",
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"stroke-opacity": "1.0",
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"fill-opacity": "1.0",
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"stroke": "#000000",
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"stroke-linecap": "butt",
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"fill": "none",
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}
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if __name__ == "__main__":
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Handles().run()
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