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import os, sys

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base_folder = os.path.split(sys.path[0])[0]

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sys.path.append(os.path.join(base_folder, "CanFestival-3", "objdictgen"))

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from nodelist import NodeList

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from nodemanager import NodeManager

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import config_utils, gen_cfile

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from networkedit import networkedit

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class _NetworkEdit(networkedit):

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    " Overload some of CanFestival Network Editor methods "

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    def OnCloseFrame(self, event):

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        " Do reset _NodeListPlug.View when closed"

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        self._onclose()

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        event.Skip()

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class _NodeListPlug(NodeList):

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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="CanFestivalNode">

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        <xsd:complexType>

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          <xsd:attribute name="CAN_Device" type="xsd:string" use="required" />

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          <xsd:attribute name="Sync_TPDOs" type="xsd:boolean" use="required" default="true"/>

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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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        manager = NodeManager()

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        # TODO change netname when name change

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        NodeList.__init__(self, manager, self.BaseParams.getName())

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        self.LoadProject(self.PlugPath())

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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():

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                self._View = None

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            def _onsave():

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                self.GetPlugRoot().SaveProject()

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            self._View = _NetworkEdit(self.GetPlugRoot().AppFrame, self)

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            # TODO redefine BusId when IEC channel change

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            self._View.SetBusId(self.GetCurrentLocation())

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            self._View._onclose = _onclose

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            self._View._onsave = _onsave

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            self._View.Show()

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    PluginMethods = [("NetworkEdit",_OpenView)]

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    def OnPlugClose(self):

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        if self._View:

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            self._View.Close()

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    def PlugTestModified(self):

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        return self.HasChanged()

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    def OnPlugSave(self):

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        self.SetRoot(self.PlugPath())

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        self.SaveProject()

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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_OD_path = os.path.join(buildpath, prefix + "_OD.c" )

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        # Create a new copy of the model with DCF loaded with PDO mappings for desired location

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        master = config_utils.GenerateConciseDCF(locations, current_location, self, self.CanFestivalNode.getSync_TPDOs())

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        res = gen_cfile.GenerateFile(Gen_OD_path, master)

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        if res :

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            raise Exception, res

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        return [(Gen_OD_path,"")],""

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class RootClass:

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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="CanFestivalInstance">

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        <xsd:complexType>

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          <xsd:attribute name="CAN_Driver" type="xsd:string" use="required" />

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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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    PlugChildsTypes = [("CanOpenNode",_NodeListPlug)]

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

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        return [],""

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