1

#!/usr/bin/env python

     2

# -*- coding: utf-8 -*-

     3

     4

# This file is part of Beremiz, a Integrated Development Environment for

     5

# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.

     6

#

     7

# Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD

     9

#

    10

# See COPYING file for copyrights details.

    11

#

    12

# This program is free software; you can redistribute it and/or

    13

# modify it under the terms of the GNU General Public License

    14

# as published by the Free Software Foundation; either version 2

    15

# of the License, or (at your option) any later version.

    16

#

    17

# This program is distributed in the hope that it will be useful,

    18

# but WITHOUT ANY WARRANTY; without even the implied warranty of

    19

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    20

# GNU General Public License for more details.

    21

#

    22

# You should have received a copy of the GNU General Public License

    23

# along with this program; if not, write to the Free Software

    24

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

    25

    26

import os

    27

from POULibrary import POULibrary

    28

from PythonFileCTNMixin import PythonFileCTNMixin

    30

    31

class PythonLibrary(POULibrary):

    32

    def GetLibraryPath(self):

    34

    35

    def Generate_C(self, buildpath, varlist, IECCFLAGS):

    36

    38

        plc_python_file = open(plc_python_filepath, 'r')

    39

        plc_python_code = plc_python_file.read()

    40

        plc_python_file.close()

    41

        python_eval_fb_list = []

    42

        for v in varlist:

    43

            if v["vartype"] == "FB" and v["type"] in ["PYTHON_EVAL",

    44

                                                      "PYTHON_POLL"]:

    45

                python_eval_fb_list.append(v)

    46

        python_eval_fb_count = max(1, len(python_eval_fb_list))

    47

    48

        # prepare python code

    49

        plc_python_code = plc_python_code % {

    50

            "python_eval_fb_count": python_eval_fb_count }

    51

    52

        Gen_Pythonfile_path = os.path.join(buildpath, "py_ext.c")

    53

        pythonfile = open(Gen_Pythonfile_path,'w')

    54

        pythonfile.write(plc_python_code)

    55

        pythonfile.close()

    56

    57

        return (["py_ext"], [(Gen_Pythonfile_path, IECCFLAGS)], True), ""

    58

    59

class PythonFile(PythonFileCTNMixin):

    60

    61

    def GetIconName(self):

    62

        return "Pyfile"

    63

    64