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import wx

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import wx.stc as stc

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import os, sys, shutil

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from CppSTC import CppSTC

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from plugger import PlugTemplate

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class _Cfile:

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    XSD = """<?xml version="1.0" encoding="ISO-8859-1" ?>

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    <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">

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      <xsd:element name="C_File">

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        <xsd:complexType>

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          <xsd:attribute name="FileName" type="xsd:string" use="required" default="myfile.c"/>

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        </xsd:complexType>

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      </xsd:element>

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    </xsd:schema>

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    """

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    def __init__(self):

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        if not os.path.isfile(self.CFileName()):

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            f = open(self.CFileName(), 'w')

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            f.write("/*Empty*/")

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    def CFileName(self):

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        return os.path.join(self.PlugPath(),self.C_File.getFileName())

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    def SetParamsAttribute(self, path, value, logger):

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        oldname = self.CFileName()

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        res = PlugTemplate.SetParamsAttribute(self, path, value, logger)

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        if path == "C_File.FileName":

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            shutil.move(oldname, self.CFileName())

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            logger.write("\"%s\" renamed \"%s\"\n"%(oldname, self.CFileName()))

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            return value, False

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        return res

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    _View = None

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    def _OpenView(self, logger):

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        if not self._View:

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            def _onclose(evt):

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                self.OnPlugSave()

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                self._View = None

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                evt.Skip()

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            self._View = wx.Frame(self.GetPlugRoot().AppFrame,-1)

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            self._View.Bind(wx.EVT_CLOSE, _onclose)

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            ed = CppSTC(self._View, wx.NewId())

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            ed.SetText(open(self.CFileName()).read())

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            ed.EmptyUndoBuffer()

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            ed.Colourise(0, -1)

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            ed.SetMarginType(1, stc.STC_MARGIN_NUMBER)

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            ed.SetMarginWidth(1, 25)

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            self._View.ed = ed

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            self._View.Show()

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    PluginMethods = [("Edit C File",_OpenView)]

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    def OnPlugSave(self):

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        if self._View:

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            f = open(self.CFileName(),'w')

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            f.write(self._View.ed.GetText())

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        return True

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    def PlugGenerate_C(self, buildpath, locations, logger):

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        """

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        Generate C code

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        @param current_location: Tupple containing plugin IEC location : %I0.0.4.5 => (0,0,4,5)

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        @param locations: List of complete variables locations \

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            [{"IEC_TYPE" : the IEC type (i.e. "INT", "STRING", ...)

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            "NAME" : name of the variable (generally "__IW0_1_2" style)

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            "DIR" : direction "Q","I" or "M"

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            "SIZE" : size "X", "B", "W", "D", "L"

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            "LOC" : tuple of interger for IEC location (0,1,2,...)

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            }, ...]

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        @return: [(C_file_name, CFLAGS),...] , LDFLAGS_TO_APPEND

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        """

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        current_location = self.GetCurrentLocation()

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        # define a unique name for the generated C file

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        prefix = "_".join(map(lambda x:str(x), current_location))

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        Gen_Cfile_path = os.path.join(buildpath, prefix + "_CFile.c" )

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        f = open(Gen_Cfile_path,'w')

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        f.write("/* Header generated by Beremiz c_ext plugin */\n")

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        f.write("#include \"iec_std_lib.h\"\n")

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        for loc in locations:

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            f.write(loc["IEC_TYPE"]+" "+loc["NAME"]+";\n")

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        f.write("/* End of header generated by Beremiz c_ext plugin */\n")

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        return [(Gen_Cfile_path,"")],""

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class RootClass:

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    PlugChildsTypes = [("C_File",_Cfile)]

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    def PlugGenerate_C(self, buildpath, locations, logger):

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        return [],""

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