433 lines
17 KiB
Python
433 lines
17 KiB
Python
#!/usr/bin/env python3
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# SPDX-License-Identifier: GPL-2.0-or-later
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'''
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Roland CutStudio export script
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Copyright (C) 2014 - 2020 Max Gaukler <development@maxgaukler.de>
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skeleton based on Visicut Inkscape Plugin :
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Copyright (C) 2012 Thomas Oster, thomas.oster@rwth-aachen.de
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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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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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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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'''
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from builtins import open
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from builtins import map
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from builtins import str
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from builtins import range
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import sys
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import os
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from subprocess import Popen
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import subprocess
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import shutil
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import numpy
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from functools import reduce
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import atexit
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import filecmp
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try:
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from pathlib import Path
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except ImportError:
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# Workaround for Python < 3.5
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class fakepath:
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def home(self):
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return os.path.expanduser("~")
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Path = fakepath()
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import tempfile
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import random
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import string
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DEVNULL = open(os.devnull, 'w')
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atexit.register(DEVNULL.close)
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# work around Inkscape 1.3 failing to start when it "calls itself" (Inkscape -> Extension -> Inkscape):
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# https://gitlab.com/inkscape/inkscape/-/issues/4163
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# https://gitlab.com/inkscape/extensions/-/merge_requests/534
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# TODO: Rewrite most parts of this extension using the inkex python module. This removes the need for such workarounds.
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os.environ["SELF_CALL"] = "true"
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def message(s):
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sys.stderr.write(s+"\n")
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def debug(s):
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message(s)
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# copied from https://github.com/t-oster/VisiCut/blob/0abe785a30d5d5085dd3b5953b38239b1ff83358/tools/inkscape_extension/visicut_export.py
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def which(program, raiseError, extraPaths=[], subdir=None):
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"""
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find program in the $PATH environment variable and in $extraPaths.
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If $subdir is given, also look in the given subdirectory of each $PATH entry.
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"""
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pathlist=os.environ["PATH"].split(os.pathsep)
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if "nt" in os.name:
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pathlist.append(os.environ.get('ProgramFiles','C:\\Program Files\\'))
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pathlist.append(os.environ.get('ProgramFiles(x86)','C:\\Program Files (x86)\\'))
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pathlist.append('C:\\Program Files\\') # needed for 64bit inkscape on 64bit Win7 machines
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pathlist.append(os.path.dirname(os.path.dirname(os.getcwd()))) # portable application in the current directory
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pathlist += extraPaths
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if subdir:
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pathlist = [os.path.join(p, subdir) for p in pathlist] + pathlist
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def is_exe(fpath):
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return os.path.isfile(fpath) and (os.access(fpath, os.X_OK) or fpath.endswith(".exe"))
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for path in pathlist:
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exe_file = os.path.join(path, program)
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if is_exe(exe_file):
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return exe_file
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if raiseError:
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raise Exception("Cannot find " + str(program) + " in any of these paths: " + str(pathlist) + ". Either the program is not installed, PATH is not set correctly, or this is a bug.")
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else:
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return None
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# copied from https://github.com/t-oster/VisiCut/blob/0abe785a30d5d5085dd3b5953b38239b1ff83358/tools/inkscape_extension/visicut_export.py
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# Strip SVG to only contain selected elements, convert objects to paths, unlink clones
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# Inkscape version: takes care of special cases where the selected objects depend on non-selected ones.
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# Examples are linked clones, flowtext limited to a shape and linked flowtext boxes (overflow into the next box).
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#
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# Inkscape is called with certain "actions" to do the required cleanup
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# The idea is similar to http://bazaar.launchpad.net/~nikitakit/inkscape/svg2sif/view/head:/share/extensions/synfig_prepare.py#L181 , but more primitive - there is no need for more complicated preprocessing here
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def stripSVG_inkscape(src, dest, elements):
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# create temporary file for opening with inkscape.
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# delete this file later so that it will disappear from the "recently opened" list.
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tmpfile = tempfile.NamedTemporaryFile(delete=False, prefix='temp-visicut-', suffix='.svg')
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tmpfile.close()
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tmpfile = tmpfile.name
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import shutil
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shutil.copyfile(src, tmpfile)
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# Updated for Inkscape 1.2, released 16 May 2022
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# inkscape --export-overwrite --actions=action1;action2...
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# (see inkscape --help, inkscape --action-list)
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# (for debugging, you can look at the intermediate state by running inkscape --with-gui --actions=... my_filename.svg)
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# Note that it is (almost?) impossible to find a sequence that works in all cases.
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# Cases to consider:
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# - selecting whole groups
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# - selecting objects within a group
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# - selecting across groups/layers (e.g., enter group, select something, then Shift-click to select things from other layers)
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# Difficulties with Inkscape:
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# - "invert selection" does not behave as expected in all these cases,
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# for example if a group is selected then inverting can select the elements within.
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# - Inkscape has a wonderful --export-id commandline switch, but it only works correctly with one ID
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# Solution:
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actions = []
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# - select objects
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actions += ["select-by-id:" + ",".join(elements)]
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# - convert to path
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actions += ["clone-unlink", "object-to-path"]
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# - create group of selection
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actions += ["selection-group"]
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# - set group ID to a known value. Use a pseudo-random value to avoid collisions
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target_group_id = "TARGET-GROUP-" + "".join(random.sample(string.ascii_lowercase, 20))
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actions += ["object-set-attribute:id," + target_group_id]
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# - set export options: use only the target group ID, nothing else
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actions += ["export-id-only:true", "export-id:" + target_group_id]
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# - export
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actions += ["export-do"]
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command = [INKSCAPEBIN, tmpfile, "--export-overwrite", "--actions=" + ";".join(actions)]
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# to print the resulting commandline:
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# print(" ".join(["'" + c + "'" for c in command]), file=sys.stderr)
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DEBUG = False
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if DEBUG:
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# Inkscape sometimes silently ignores wrong verbs, so we need to double-check that everything's right
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for action in actions:
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aciton_list = [line.split(":")[0] for line in subprocess.check_output([INKSCAPEBIN, "--action-list"], stderr=DEVNULL).split("\n")]
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if action not in action_list:
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sys.stderr.write("Inkscape does not have the action '{}'. Please report this as a VisiCut bug.".format(action))
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inkscape_output = "(not yet run)"
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try:
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#sys.stderr.write(" ".join(command))
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# run inkscape, buffer output
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inkscape = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
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inkscape_output = inkscape.communicate()[0]
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if inkscape.returncode != 0:
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sys.stderr.write("Error: cleaning the document with inkscape failed. Something might still be shown in visicut, but it could be incorrect.\nInkscape's output was:\n" + str(inkscape_output))
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except:
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sys.stderr.write("Error: cleaning the document with inkscape failed. Something might still be shown in visicut, but it could be incorrect. Exception information: \n" + str(sys.exc_info()[0]) + "Inkscape's output was:\n" + str(inkscape_output))
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# move output to the intended destination filename
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os.rename(tmpfile, dest)
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# header
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# for debugging purposes you can open the resulting EPS file in Inkscape,
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# select all, ungroup multiple times
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# --> now you can view the exported lines in inkscape
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prefix="""
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%!PS-Adobe-3.0 EPSF-3.0
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%%LanguageLevel: 2
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%%BoundingBox -10000 -10000 10000 10000
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%%EndComments
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%%BeginSetup
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%%EndSetup
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%%BeginProlog
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% This code (until EndProlog) is from an inkscape-exported EPS, copyright unknown, see cairo-library
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save
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50 dict begin
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/q { gsave } bind def
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/Q { grestore } bind def
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/cm { 6 array astore concat } bind def
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/w { setlinewidth } bind def
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/J { setlinecap } bind def
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/j { setlinejoin } bind def
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/M { setmiterlimit } bind def
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/d { setdash } bind def
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/m { moveto } bind def
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/l { lineto } bind def
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/c { curveto } bind def
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/h { closepath } bind def
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/re { exch dup neg 3 1 roll 5 3 roll moveto 0 rlineto
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0 exch rlineto 0 rlineto closepath } bind def
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/S { stroke } bind def
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/f { fill } bind def
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/f* { eofill } bind def
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/n { newpath } bind def
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/W { clip } bind def
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/W* { eoclip } bind def
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/BT { } bind def
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/ET { } bind def
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/pdfmark where { pop globaldict /?pdfmark /exec load put }
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{ globaldict begin /?pdfmark /pop load def /pdfmark
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/cleartomark load def end } ifelse
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/BDC { mark 3 1 roll /BDC pdfmark } bind def
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/EMC { mark /EMC pdfmark } bind def
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/cairo_store_point { /cairo_point_y exch def /cairo_point_x exch def } def
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/Tj { show currentpoint cairo_store_point } bind def
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/TJ {
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{
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dup
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type /stringtype eq
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{ show } { -0.001 mul 0 cairo_font_matrix dtransform rmoveto } ifelse
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} forall
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currentpoint cairo_store_point
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} bind def
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/cairo_selectfont { cairo_font_matrix aload pop pop pop 0 0 6 array astore
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cairo_font exch selectfont cairo_point_x cairo_point_y moveto } bind def
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/Tf { pop /cairo_font exch def /cairo_font_matrix where
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{ pop cairo_selectfont } if } bind def
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/Td { matrix translate cairo_font_matrix matrix concatmatrix dup
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/cairo_font_matrix exch def dup 4 get exch 5 get cairo_store_point
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/cairo_font where { pop cairo_selectfont } if } bind def
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/Tm { 2 copy 8 2 roll 6 array astore /cairo_font_matrix exch def
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cairo_store_point /cairo_font where { pop cairo_selectfont } if } bind def
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/g { setgray } bind def
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/rg { setrgbcolor } bind def
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/d1 { setcachedevice } bind def
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%%EndProlog
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%%Page: 1 1
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%%BeginPageSetup
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%%PageBoundingBox: -10000 -10000 10000 10000
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%%EndPageSetup
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% This is a severely crippled fucked-up pseudo-postscript for importing in Roland CutStudio
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% Do not even try to open it with something else
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% FIXME opening with inkscape currently does not show any objects, although it worked some time in the past
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% Inkscape header, not used by cutstudio
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% Start
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q -10000 -10000 10000 10000 rectclip q
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0 g
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0.286645 w
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0 J
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0 j
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[] 0.0 d
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4 M q
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% Cutstudio Start
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"""
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postfix="""
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% Cutstudio End
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%this is necessary for CutStudio so that the last line isnt skipped:
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0 0 m
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% Inkscape footer
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S Q
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Q Q
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showpage
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%%Trailer
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end restore
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%%EOF
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"""
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def EPS2CutstudioEPS(src, dest, mirror=False):
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def outputFromStack(stack, n, transformCoordinates=True):
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arr=stack[-(n+1):-1]
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if transformCoordinates:
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arrTransformed=[]
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for i in range(n//2):
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arrTransformed+=transform(arr[2*i], arr[2*i+1])
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return output(arrTransformed+[stack[-1]])
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else:
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return output(arr+[stack[-1]])
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def transform(x, y):
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#debug("trafo from: {} {}".format(x, y))
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p=numpy.array([[float(x),float(y),1]]).transpose()
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multiply = lambda a, b: numpy.matmul(a, b)
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# concatenate transformations by multiplying: new = transformation x previousTransformtaion
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m=reduce(multiply, scalingStack[::-1])
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m=m.transpose()
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#debug("with {}".format(m))
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pnew = numpy.matmul(m, p)
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x=float(pnew.item(0))
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y=float(pnew.item(1))
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#debug("to: {} {}".format(x, y))
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return [x, y]
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def outputMoveto(x, y):
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[xx, yy]=transform(x, y)
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return output([str(xx), str(yy), "m"])
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def outputLineto(x, y):
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[xx, yy]=transform(x, y)
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return output([str(xx), str(yy), "l"])
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def output(array):
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array=list(map(str, array))
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output=" ".join(array)
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#debug("OUTPUT: "+output)
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return output + "\n"
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stack=[]
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scalingStack=[numpy.identity(3)]
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if mirror:
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scalingStack.append(numpy.diag([-1, 1, 1]))
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lastMoveCoordinates=None
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outputStr=prefix
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inputFile=open(src)
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outputFile=open(dest, "w")
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for line in inputFile.readlines():
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line=line.strip()
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if line.startswith("%"):
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# comment line
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continue
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if line.endswith("re W n"):
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continue # ignore clipping rectangle
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#debug(line)
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for item in line.split(" "):
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item=item.strip()
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if item=="":
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continue
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#debug("INPUT: " + item.__repr__())
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stack.append(item)
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if item=="h": # close path
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assert lastMoveCoordinates, "closed path before first moveto"
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outputStr += outputLineto(float(lastMoveCoordinates[0]), float(lastMoveCoordinates[1]))
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elif item == "c": # bezier curveto
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outputStr += outputFromStack(stack, 6)
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stack=[]
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elif item=="re": # rectangle
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x=float(stack[-5])
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y=float(stack[-4])
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dx=float(stack[-3])
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dy=float(stack[-2])
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outputStr += outputMoveto(x, y)
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outputStr += outputLineto(x+dx, y)
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outputStr += outputLineto(x+dx, y+dy)
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outputStr += outputLineto(x, y+dy)
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outputStr += outputLineto(x, y)
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elif item=="cm": # matrix transformation
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newTrafo=numpy.array([[float(stack[-7]), float(stack[-6]), 0], [float(stack[-5]), float(stack[-4]), 0], [float(stack[-3]), float(stack[-2]), 1]])
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#debug("applying trafo "+str(newTrafo))
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scalingStack[-1] = numpy.matmul(scalingStack[-1], newTrafo)
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elif item=="q": # save graphics state to stack
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scalingStack.append(numpy.identity(3))
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elif item=="Q": # pop graphics state from stack
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scalingStack.pop()
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elif item in ["m", "l"]:
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if item=="m": # moveto
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lastMoveCoordinates=stack[-3:-1]
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elif item=="l": # lineto
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pass
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outputStr += outputFromStack(stack, 2)
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stack=[]
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else:
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pass # do nothing
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outputStr += postfix
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outputFile.write(outputStr)
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outputFile.close()
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inputFile.close()
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if os.name=="nt": # windows
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INKSCAPEBIN = which("inkscape.exe", True, subdir="Inkscape")
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else:
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INKSCAPEBIN=which("inkscape", True)
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assert os.path.isfile(INKSCAPEBIN), "cannot find inkscape binary " + INKSCAPEBIN
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selectedElements=[]
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for arg in sys.argv[1:]:
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if arg[0] == "-":
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if len(arg) >= 5 and arg[0:5] == "--id=":
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selectedElements +=[arg[5:]]
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else:
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filename = arg
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if "--selftest" in sys.argv:
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filename = "./test-input.svg"
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if len(selectedElements)==0:
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shutil.copyfile(filename, filename+".filtered.svg")
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else:
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# only take selected elements
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stripSVG_inkscape(src=filename, dest=filename+".filtered.svg", elements=selectedElements)
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cmd = [INKSCAPEBIN, "-T", "--export-ignore-filters", "--export-area-drawing", "--export-filename="+filename+".inkscape.eps", filename+".filtered.svg"]
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inkscape_eps_file = filename + ".inkscape.eps"
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#debug(" ".join(cmd))
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assert 0 == subprocess.call(cmd, stderr=DEVNULL), 'EPS conversion failed: command returned error: ' + '"' + '" "'.join(cmd) + '"'
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assert os.path.exists(inkscape_eps_file), 'EPS conversion failed: command did not create result file: ' + '"' + '" "'.join(cmd) + '"'
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if "--selftest" in sys.argv:
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# used for unit-testing: fixed location of output file
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destination = "./test-output-actual.cutstudio.eps"
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else:
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# normally
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destination = filename + ".cutstudio.eps"
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EPS2CutstudioEPS(inkscape_eps_file, destination, mirror=("--mirror=true" in sys.argv))
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if "--selftest" in sys.argv:
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# unittest: compare with known reference output
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TEST_REFERENCE_FILE = "./test-output-reference.cutstudio.eps"
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assert filecmp.cmp(destination, TEST_REFERENCE_FILE), "Test output changed. Please compare " + destination + " and " + TEST_REFERENCE_FILE
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print("Selftest successful :-)")
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sys.exit(0)
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if os.name=="nt":
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DETACHED_PROCESS = 8 # start as "daemon"
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Popen([which("CutStudio\\CutStudio.exe", True), "/import", destination], creationflags=DETACHED_PROCESS, close_fds=True)
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else: #check if we have access to "wine"
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CUTSTUDIO_C_DRIVE = str(Path.home()) + "/.wine/drive_c/"
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CUTSTUDIO_PATH_LINUX_WINE = CUTSTUDIO_C_DRIVE + "Program Files (x86)/CutStudio/CutStudio.exe"
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CUTSTUDIO_COMMANDLINE = ["wine", CUTSTUDIO_PATH_LINUX_WINE, "/import", r'C:\cutstudio.eps']
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try:
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if not which("wine", False):
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raise Exception("Cannot find 'wine'")
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if not os.path.exists(CUTSTUDIO_PATH_LINUX_WINE):
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raise Exception("Cannot find CutStudio in " + CUTSTUDIO_PATH_LINUX_WINE)
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shutil.copyfile(destination, CUTSTUDIO_C_DRIVE + "cutstudio.eps")
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subprocess.check_call(CUTSTUDIO_COMMANDLINE, stderr=subprocess.DEVNULL, stdout=subprocess.DEVNULL)
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except Exception as exc:
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message("Could not open CutStudio.\nInstead, your file was saved to:\n" + destination + "\n" + \
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"Please open that with CutStudio manually. \n\n" + \
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"Tip: On Linux, you can use 'wine' to install CutStudio 3.10. Then, the file will be directly opened with CutStudio. \n" + \
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" Diagnostic information: \n" + str(exc))
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#os.popen("/usr/bin/xdg-open " + filename)
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#Popen(["inkscape", filename+".filtered.svg"], stderr=DEVNULL)
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#Popen(["inkscape", filename+".cutstudio.eps"])
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#os.unlink(filename+".filtered.svg")
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#os.unlink(filename)
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#os.unlink(filename+".cutstudio.eps")
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