181 lines
8.5 KiB
Python
181 lines
8.5 KiB
Python
#!/usr/bin/env python3
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from copy import deepcopy
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from pathlib import Path
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import logging
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import math
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import os
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import sys
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import subprocess
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from subprocess import Popen, PIPE
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import warnings
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import inkex
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import inkex.command
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from inkex.command import inkscape, inkscape_command
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from lxml import etree
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from scour.scour import scourString
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'''
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ToDo: work with temporary SVG file in temp dir instead handling deletion stuff at the end / valide that the file exists when spawning new instance
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'''
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logger = logging.getLogger(__name__)
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DETACHED_PROCESS = 0x00000008
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GROUP_ID = 'export_selection_transform'
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class ExportObject(inkex.EffectExtension):
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def add_arguments(self, pars):
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pars.add_argument("--wrap_transform", type=inkex.Boolean, default=False, help="Wrap final document in transform")
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pars.add_argument("--border_offset", type=float, default=1.000, help="Add border offset around selection")
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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")
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pars.add_argument("--dxf_exporter_path", default="/usr/share/inkscape/extensions/dxf_outlines.py", help="Location of dxf_outlines.py")
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pars.add_argument("--export_svg", type=inkex.Boolean, default=False, help="Create a svg file")
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pars.add_argument("--export_dxf", type=inkex.Boolean, default=False, help="Create a dxf file")
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pars.add_argument("--export_pdf", type=inkex.Boolean, default=False, help="Create a pdf file")
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pars.add_argument("--newwindow", type=inkex.Boolean, default=False, help="Open file in new Inkscape window")
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def openExplorer(self, dir):
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if os.name == 'nt':
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Popen(["explorer", dir], close_fds=True, creationflags=DETACHED_PROCESS).wait()
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else:
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Popen(["xdg-open", dir], close_fds=True, start_new_session=True).wait()
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def spawnIndependentInkscape(self, file): #function to spawn non-blocking inkscape instance. the inkscape command is available because it is added to ENVIRONMENT when Inkscape main instance is started
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warnings.simplefilter('ignore', ResourceWarning) #suppress "enable tracemalloc to get the object allocation traceback"
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if os.name == 'nt':
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Popen(["inkscape", file], close_fds=True, creationflags=DETACHED_PROCESS)
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else:
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subprocess.Popen(["inkscape", file], start_new_session=True, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
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warnings.simplefilter("default", ResourceWarning)
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def effect(self):
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svg_export = self.options.export_svg
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if self.options.export_svg is False and \
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self.options.export_dxf is False and \
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self.options.export_pdf is False and \
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self.options.newwindow is False:
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inkex.utils.debug("You must select at least one option to continue!")
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return
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else:
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self.options.export_svg = True #required for all other options!
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if not self.svg.selected:
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inkex.errormsg("Selection is empty. Please select some objects first!")
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return
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#preflight check for DXF input dir
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if not os.path.exists(self.options.dxf_exporter_path):
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inkex.utils.debug("Location of dxf_outlines.py does not exist. Please select a proper file and try again.")
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exit(1)
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export_dir = Path(self.absolute_href(self.options.export_dir))
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os.makedirs(export_dir, exist_ok=True)
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offset = self.options.border_offset
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bbox = inkex.BoundingBox()
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for elem in self.svg.selected.values():
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transform = inkex.Transform()
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parent = elem.getparent()
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if parent is not None and isinstance(parent, inkex.ShapeElement):
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transform = parent.composed_transform()
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try:
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bbox += elem.bounding_box(transform)
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except Exception:
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logger.exception("Bounding box not computed")
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logger.info("Skipping bounding box")
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transform = elem.composed_transform()
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x1, y1 = transform.apply_to_point([0, 0])
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x2, y2 = transform.apply_to_point([1, 1])
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bbox += inkex.BoundingBox((x1, x2), (y1, y2))
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template = self.create_document()
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svg_filename = None
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group = etree.SubElement(template, '{http://www.w3.org/2000/svg}g')
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group.attrib['id'] = GROUP_ID
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group.attrib['transform'] = str(inkex.Transform(((1, 0, -bbox.left), (0, 1, -bbox.top))))
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for elem in self.svg.selected.values():
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elem_copy = deepcopy(elem)
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elem_copy.attrib['transform'] = str(elem.composed_transform())
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elem_copy.attrib['style'] = str(elem.composed_style())
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group.append(elem_copy)
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template.attrib['viewBox'] = f'{-offset} {-offset} {bbox.width + offset * 2} {bbox.height + offset * 2}'
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template.attrib['width'] = f'{bbox.width + offset * 2}' + self.svg.unit
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template.attrib['height'] = f'{bbox.height + offset * 2}' + self.svg.unit
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if svg_filename is None:
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filename_base = elem.attrib.get('id', None).replace(os.sep, '_')
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if filename_base:
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svg_filename = filename_base + '.svg'
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if not filename_base: #should never be the case. Inkscape might crash if the id attribute is empty or not existent due to invalid SVG
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filename_base = self.svg.get_unique_id("selection")
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svg_filename = filename_base + '.svg'
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template.append(group)
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if not self.options.wrap_transform:
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self.load(inkscape_command(template.tostring(), select=GROUP_ID, verbs=['SelectionUnGroup']))
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template = self.svg
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for child in template.getchildren():
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if child.tag == '{http://www.w3.org/2000/svg}metadata':
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template.remove(child)
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if self.options.export_svg is True:
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self.save_document(template, export_dir / svg_filename)
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if self.options.opendir is True:
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self.openExplorer(export_dir)
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if self.options.newwindow is True:
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#inkscape(os.path.join(export_dir, svg_filename)) #blocking cmd
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self.spawnIndependentInkscape(os.path.join(export_dir, svg_filename)) #non-blocking
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if self.options.export_dxf is True:
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#ensure that python command is available #we pass 25.4/96 which stands for unit mm. See inkex.units.UNITS and dxf_outlines.inx
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cmd = [
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sys.executable, #the path of the python interpreter which is used for this script
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self.options.dxf_exporter_path,
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'--output=' + os.path.join(export_dir, filename_base + '.dxf'),
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r'--units=25.4/96',
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os.path.join(export_dir, svg_filename)
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]
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proc = Popen(cmd, shell=False, stdout=PIPE, stderr=PIPE)
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stdout, stderr = proc.communicate()
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if proc.returncode != 0:
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inkex.utils.debug("%d %s %s" % (proc.returncode, stdout, stderr))
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if self.options.export_pdf is True:
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cli_output = inkscape(os.path.join(export_dir, svg_filename), actions='export-pdf-version:1.5;export-text-to-path;export-filename:{file_name};export-do;FileClose'.format(file_name=os.path.join(export_dir, filename_base + '.pdf')))
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if len(cli_output) > 0:
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self.msg("Inkscape returned the following output when trying to run the file export; the file export may still have worked:")
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self.msg(cli_output)
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if svg_export is False and self.options.newwindow is False: #we need the SVG file in case we open in new window because we spawn a new instance
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os.remove(os.path.join(export_dir, svg_filename)) #remove SVG if not enabled to export. Might delete existing SVG accidently!
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def create_document(self):
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document = self.svg.copy()
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for child in document.getchildren():
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if child.tag == '{http://www.w3.org/2000/svg}defs':
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continue
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document.remove(child)
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return document
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def save_document(self, document, filename):
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with open(filename, 'wb') as fp:
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document = document.tostring()
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fp.write(scourString(document).encode('utf8'))
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if __name__ == '__main__':
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ExportObject().run() |