docutil/docsvg.py
author Edouard Tisserant <edouard.tisserant@gmail.com>
Sun, 17 Jul 2022 22:35:45 +0200
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# This file is part of Beremiz, a Integrated Development Environment for
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# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.
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#
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# Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD
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#
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# See COPYING file for copyrights details.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (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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from __future__ import absolute_import
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import wx
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import subprocess
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def _get_inkscape_path():
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    """ Return the Inkscape binary path """
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    if wx.Platform == '__WXMSW__':
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        from six.moves import winreg
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        inkcmd = None
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        tries = [(winreg.HKEY_LOCAL_MACHINE, 'Software\\Classes\\svgfile\\shell\\Inkscape\\command'),
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                 (winreg.HKEY_LOCAL_MACHINE, 'Software\\Classes\\inkscape.svg\\shell\\open\\command'),
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                 (winreg.HKEY_CURRENT_USER, 'Software\\Classes\\inkscape.svg\\shell\\open\\command')]
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        for subreg, key in tries:
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            try:
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                inkcmd = winreg.QueryValue(subreg, key)
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                break;
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            except OSError:
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                pass
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        if inkcmd is None:
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            return None
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        return inkcmd.replace('"%1"', '').strip().replace('"', '')
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    else:
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        try:
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            return subprocess.check_output("command -v inkscape", shell=True).strip()
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        except subprocess.CalledProcessError:
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            return None
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_inkscape_path = None
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def get_inkscape_path():
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    """ Return the Inkscape binary path """
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    global _inkscape_path
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    if _inkscape_path is not None:
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        return _inkscape_path
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    _inkscape_path = _get_inkscape_path()
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    return _inkscape_path
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def _get_inkscape_version():
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    inkpath = get_inkscape_path()
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    if inkpath is None:
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        return None
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    return map(int, 
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        subprocess.check_output([inkpath,"--version"]).split()[1].split('.'))
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_inkscape_version = None
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def get_inkscape_version():
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    global _inkscape_version
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    if _inkscape_version is not None:
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        return _inkscape_version
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    _inkscape_version = _get_inkscape_version()
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    return _inkscape_version
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def open_svg(svgfile):
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    """ Generic function to open SVG file """
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    inkpath = get_inkscape_path()
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    if inkpath is None:
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        wx.MessageBox("Inkscape is not found or installed !")
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    else:
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        subprocess.Popen([inkpath,svgfile])