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mightyscape-1.1-deprecated/extensions/fablabchemnitz/export_selection.py

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#!/usr/bin/env python3
from copy import deepcopy
from pathlib import Path
import logging
import math
import os
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import subprocess
from subprocess import Popen, PIPE
import inkex
import inkex.command
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from inkex.command import inkscape, inkscape_command
from lxml import etree
from scour.scour import scourString
logger = logging.getLogger(__name__)
GROUP_ID = 'export_selection_transform'
class ExportObject(inkex.EffectExtension):
def add_arguments(self, pars):
pars.add_argument("--wrap_transform", type=inkex.Boolean, default=False, help="Wrap final document in transform")
pars.add_argument("--export_dir", default="~/inkscape_export/", help="Location to save exported documents")
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pars.add_argument("--opendir", type=inkex.Boolean, default=False, help="Open containing output directory after export")
pars.add_argument("--dxf_exporter_path", default="/usr/share/inkscape/extensions/dxf_outlines.py", help="Location of dxf_outlines.py")
pars.add_argument("--export_dxf", type=inkex.Boolean, default=False, help="Create a dxf file")
pars.add_argument("--newwindow", type=inkex.Boolean, default=False, help="Open file in new Inkscape window")
def openExplorer(self, dir):
DETACHED_PROCESS = 0x00000008
if os.name == 'nt':
Popen(["explorer", dir], close_fds=True, creationflags=DETACHED_PROCESS).wait()
else:
Popen(["xdg-open", dir], close_fds=True, start_new_session=True).wait()
def effect(self):
if not self.svg.selected:
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inkex.errormsg("Selection is empty. Please select some objects first!")
return
export_dir = Path(self.absolute_href(self.options.export_dir))
os.makedirs(export_dir, exist_ok=True)
bbox = inkex.BoundingBox()
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for elem in self.svg.selected.values():
transform = inkex.Transform()
parent = elem.getparent()
if parent is not None and isinstance(parent, inkex.ShapeElement):
transform = parent.composed_transform()
try:
bbox += elem.bounding_box(transform)
except Exception:
logger.exception("Bounding box not computed")
logger.info("Skipping bounding box")
transform = elem.composed_transform()
x1, y1 = transform.apply_to_point([0, 0])
x2, y2 = transform.apply_to_point([1, 1])
bbox += inkex.BoundingBox((x1, x2), (y1, y2))
template = self.create_document()
filename = None
group = etree.SubElement(template, '{http://www.w3.org/2000/svg}g')
group.attrib['id'] = GROUP_ID
group.attrib['transform'] = str(inkex.Transform(((1, 0, -bbox.left), (0, 1, -bbox.top))))
for elem in self.svg.selected.values():
elem_copy = deepcopy(elem)
elem_copy.attrib['transform'] = str(elem.composed_transform())
group.append(elem_copy)
width = math.ceil(bbox.width)
height = math.ceil(bbox.height)
template.attrib['viewBox'] = f'0 0 {width} {height}'
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template.attrib['width'] = f'{width}' + self.svg.unit
template.attrib['height'] = f'{height}' + self.svg.unit
if filename is None:
filename = elem.attrib.get('id', None)
if filename:
filename = filename.replace(os.sep, '_') + '.svg'
if not filename:
filename = 'element.svg'
template.append(group)
if not self.options.wrap_transform:
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self.load(inkscape_command(template.tostring(), select=GROUP_ID, verbs=['SelectionUnGroup']))
template = self.svg
for child in template.getchildren():
if child.tag == '{http://www.w3.org/2000/svg}metadata':
template.remove(child)
self.save_document(template, export_dir / filename)
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if self.options.opendir is True:
self.openExplorer(export_dir)
if self.options.newwindow is True:
inkscape(os.path.join(export_dir, filename))
if self.options.export_dxf is True:
#ensure that python3 command is available #we pass 25.4/96 which stands for unit mm. See inkex.units.UNITS and dxf_outlines.inx
cmd = ['python3', self.options.dxf_exporter_path, '--output=' + os.path.join(export_dir, filename + '.dxf'), r'--units=25.4/96', os.path.join(export_dir, filename)]
proc = Popen(cmd, shell=False, stdout=PIPE, stderr=PIPE)
stdout, stderr = proc.communicate()
#inkex.utils.debug("%d %s %s" % (proc.returncode, stdout, stderr))
def create_document(self):
document = self.svg.copy()
for child in document.getchildren():
if child.tag == '{http://www.w3.org/2000/svg}defs':
continue
document.remove(child)
return document
def save_document(self, document, filename):
with open(filename, 'wb') as fp:
document = document.tostring()
fp.write(scourString(document).encode('utf8'))
if __name__ == '__main__':
ExportObject().run()