106 lines
3.4 KiB
Python
106 lines
3.4 KiB
Python
# Copyright (C) 2013-2014 Florian Festi
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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 3 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, see <http://www.gnu.org/licenses/>.
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import os
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import shutil
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import subprocess
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import tempfile
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from boxes.drawing import Context, LBRN2Surface, PSSurface, SVGSurface
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class Formats:
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pstoedit_candidates = ["/usr/bin/pstoedit", "pstoedit", "pstoedit.exe"]
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ps2pdf_candidates = ["/usr/bin/ps2pdf", "ps2pdf", "ps2pdf.exe"]
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_BASE_FORMATS = ['svg', 'svg_Ponoko', 'ps', 'lbrn2']
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formats = {
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"svg": None,
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"svg_Ponoko": None,
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"ps": None,
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"lbrn2": None,
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"dxf": "{pstoedit} -flat 0.1 -f dxf:-mm {input} {output}",
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"gcode": "{pstoedit} -f gcode {input} {output}",
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"plt": "{pstoedit} -f hpgl {input} {output}",
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# "ai": "{pstoedit} -f ps2ai",
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"pdf": "{ps2pdf} -dEPSCrop {input} {output}",
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}
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http_headers = {
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"svg": [('Content-type', 'image/svg+xml; charset=utf-8')],
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"svg_Ponoko": [('Content-type', 'image/svg+xml; charset=utf-8')],
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"ps": [('Content-type', 'application/postscript')],
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"lbrn2": [('Content-type', 'application/lbrn2')],
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"dxf": [('Content-type', 'image/vnd.dxf')],
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"plt": [('Content-type', ' application/vnd.hp-hpgl')],
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"gcode": [('Content-type', 'text/plain; charset=utf-8')],
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# "" : [('Content-type', '')],
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}
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def __init__(self) -> None:
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for cmd in self.pstoedit_candidates:
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self.pstoedit = shutil.which(cmd)
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if self.pstoedit:
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break
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for cmd in self.ps2pdf_candidates:
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self.ps2pdf = shutil.which(cmd)
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if self.ps2pdf:
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break
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def getFormats(self):
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if self.pstoedit:
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return sorted(self.formats.keys())
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return self._BASE_FORMATS
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def getSurface(self, fmt):
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if fmt in ("svg", "svg_Ponoko"):
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surface = SVGSurface()
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elif fmt == "lbrn2":
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surface = LBRN2Surface()
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else:
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surface = PSSurface()
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ctx = Context(surface)
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return surface, ctx
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def convert(self, data, fmt):
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if fmt not in self._BASE_FORMATS:
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fd, tmpfile = tempfile.mkstemp()
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os.write(fd, data.getvalue())
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os.close(fd)
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fd2, outfile = tempfile.mkstemp()
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cmd = self.formats[fmt].format(
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pstoedit=self.pstoedit,
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ps2pdf=self.ps2pdf,
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input=tmpfile,
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output=outfile).split()
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result = subprocess.run(cmd)
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os.unlink(tmpfile)
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if result.returncode:
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# XXX show stderr output
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raise ValueError("Conversion failed. pstoedit returned %i\n\n %s" % (result.returncode, result.stderr))
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data = open(outfile, 'rb')
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os.unlink(outfile)
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os.close(fd2)
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return data
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