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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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from __future__ import print_function

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import os

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import wx

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readerexepath = None

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def get_acroversion():

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    " Return version of Adobe Acrobat executable or None"

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    from six.moves import winreg

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    adobesoft = winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, r'Software\Adobe')

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    for index in range(winreg.QueryInfoKey(adobesoft)[0]):

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        key = winreg.EnumKey(adobesoft, index)

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        if "acrobat" in key.lower():

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            acrokey = winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, 'Software\\Adobe\\%s' % key)

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            for index in range(winreg.QueryInfoKey(acrokey)[0]):

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                numver = winreg.EnumKey(acrokey, index)

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                try:

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                    res = winreg.QueryValue(winreg.HKEY_LOCAL_MACHINE, 'Software\\Adobe\\%s\\%s\\InstallPath' % (key, numver))

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                    return res

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                except Exception:

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                    pass

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    return None

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def open_win_pdf(readerexepath, pdffile, pagenum=None):

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    if pagenum is not None:

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        os.spawnl(os.P_DETACH, readerexepath, "AcroRd32.exe", "/A", "page=%d=OpenActions" % pagenum, '"%s"' % pdffile)

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    else:

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        os.spawnl(os.P_DETACH, readerexepath, "AcroRd32.exe", '"%s"' % pdffile)

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def open_lin_pdf(readerexepath, pdffile, pagenum=None):

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    if pagenum is None:

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        os.system("%s -remote DS301 %s &" % (readerexepath, pdffile))

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    else:

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        print("Open pdf %s at page %d" % (pdffile, pagenum))

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        os.system("%s -remote DS301 %s %d &" % (readerexepath, pdffile, pagenum))

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def open_pdf(pdffile, pagenum=None):

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    if wx.Platform == '__WXMSW__':

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        try:

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            readerpath = get_acroversion()

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        except Exception:

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            wx.MessageBox("Acrobat Reader is not found or installed !")

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            return None

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        readerexepath = os.path.join(readerpath, "AcroRd32.exe")

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        if os.path.isfile(readerexepath):

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            open_win_pdf(readerexepath, pdffile, pagenum)

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        else:

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            return None

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    else:

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        readerexepath = os.path.join("/usr/bin", "xpdf")

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        if os.path.isfile(readerexepath):

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            open_lin_pdf(readerexepath, pdffile, pagenum)

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        else:

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            wx.MessageBox("xpdf is not found or installed !")

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            return None