1

import wx

     2

import os

     3

from xml.dom import minidom

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import cPickle

     5

     6

from xmlclass import *

     7

     8

from plugger import PlugTemplate

     9

from CFileEditor import CFileEditor

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from PLCControler import PLCControler, LOCATION_PLUGIN, LOCATION_MODULE, LOCATION_GROUP, LOCATION_VAR_INPUT, LOCATION_VAR_OUTPUT, LOCATION_VAR_MEMORY

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CFileClasses = GenerateClassesFromXSD(os.path.join(os.path.dirname(__file__), "cext_xsd.xsd")) 

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    14

#-------------------------------------------------------------------------------

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#                         Undo Buffer for CFile

    16

#-------------------------------------------------------------------------------

    17

    18

# Length of the buffer

    19

UNDO_BUFFER_LENGTH = 20

    20

    21

"""

    22

Class implementing a buffer of changes made on the current editing model

    23

"""

    24

class UndoBuffer:

    25

    26

    # Constructor initialising buffer

    27

    def __init__(self, currentstate, issaved = False):

    28

        self.Buffer = []

    29

        self.CurrentIndex = -1

    30

        self.MinIndex = -1

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        self.MaxIndex = -1

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        # if current state is defined

    33

        if currentstate:

    34

            self.CurrentIndex = 0

    35

            self.MinIndex = 0

    36

            self.MaxIndex = 0

    37

        # Initialising buffer with currentstate at the first place

    38

        for i in xrange(UNDO_BUFFER_LENGTH):

    39

            if i == 0:

    40

                self.Buffer.append(currentstate)

    41

            else:

    42

                self.Buffer.append(None)

    43

        # Initialising index of state saved

    44

        if issaved:

    45

            self.LastSave = 0

    46

        else:

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            self.LastSave = -1

    48

    49

    # Add a new state in buffer

    50

    def Buffering(self, currentstate):

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        self.CurrentIndex = (self.CurrentIndex + 1) % UNDO_BUFFER_LENGTH

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        self.Buffer[self.CurrentIndex] = currentstate

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        # Actualising buffer limits

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        self.MaxIndex = self.CurrentIndex

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        if self.MinIndex == self.CurrentIndex:

    56

            # If the removed state was the state saved, there is no state saved in the buffer

    57

            if self.LastSave == self.MinIndex:

    58

                self.LastSave = -1

    59

            self.MinIndex = (self.MinIndex + 1) % UNDO_BUFFER_LENGTH

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        self.MinIndex = max(self.MinIndex, 0)

    61

    62

    # Return current state of buffer

    63

    def Current(self):

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        return self.Buffer[self.CurrentIndex]

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    66

    # Change current state to previous in buffer and return new current state

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    def Previous(self):

    68

        if self.CurrentIndex != self.MinIndex:

    69

            self.CurrentIndex = (self.CurrentIndex - 1) % UNDO_BUFFER_LENGTH

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            return self.Buffer[self.CurrentIndex]

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        return None

    72

    73

    # Change current state to next in buffer and return new current state

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    def Next(self):

    75

        if self.CurrentIndex != self.MaxIndex:

    76

            self.CurrentIndex = (self.CurrentIndex + 1) % UNDO_BUFFER_LENGTH

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            return self.Buffer[self.CurrentIndex]

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        return None

    79

    80

    # Return True if current state is the first in buffer

    81

    def IsFirst(self):

    82

        return self.CurrentIndex == self.MinIndex

    83

    84

    # Return True if current state is the last in buffer

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    def IsLast(self):

    86

        return self.CurrentIndex == self.MaxIndex

    87

    88

    # Note that current state is saved

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    def CurrentSaved(self):

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        self.LastSave = self.CurrentIndex

    91

    92

    # Return True if current state is saved

    93

    def IsCurrentSaved(self):

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        return self.LastSave == self.CurrentIndex

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    96

    97

TYPECONVERSION = {"BOOL" : "X", "SINT" : "B", "INT" : "W", "DINT" : "D", "LINT" : "L",

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    "USINT" : "B", "UINT" : "W", "UDINT" : "D", "ULINT" : "L", "REAL" : "D", "LREAL" : "L",

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    "STRING" : "B", "BYTE" : "B", "WORD" : "W", "DWORD" : "D", "LWORD" : "L", "WSTRING" : "W"}

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   101

class _Cfile:

   102

    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="CExtension">

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        <xsd:complexType>

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

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

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        </xsd:complexType>

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      </xsd:element>

   110

    </xsd:schema>

   111

    """

   112

    def __init__(self):

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        filepath = self.CFileName()

   114

   115

        self.Buffering = False

   116

        self.CFile = CFileClasses["CFile"]()

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        self.CFileBuffer = UndoBuffer(self.Copy(self.CFile), False)

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        if os.path.isfile(filepath):

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            xmlfile = open(filepath, 'r')

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            tree = minidom.parse(xmlfile)

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            xmlfile.close()

   122

   123

            for child in tree.childNodes:

   124

                if child.nodeType == tree.ELEMENT_NODE and child.nodeName == "CFile":

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                    self.CFile.loadXMLTree(child, ["xmlns", "xmlns:xsi", "xsi:schemaLocation"])

   126

                    self.CFileBuffer = UndoBuffer(self.Copy(self.CFile), True)

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        else:

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            self.OnPlugSave()

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   130

    def CFileName(self):

   131

        return os.path.join(self.PlugPath(), "cfile.xml")

   132

   133

    def GetFilename(self):

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        if self.CFileBuffer.IsCurrentSaved():

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            return "cfile"

   136

        else:

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            return "~cfile~"

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   139

    def GetBaseTypes(self):

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        return self.GetPlugRoot().GetBaseTypes()

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   142

    def GetDataTypes(self, basetypes = False):

   143

        return self.GetPlugRoot().GetDataTypes(basetypes = basetypes)

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   145

    def GetSizeOfType(self, type):

   146

        return TYPECONVERSION[self.GetPlugRoot().GetBaseType(type)]

   147

   148

    def SetVariables(self, variables):

   149

        self.CFile.variables.setvariable([])

   150

        for var in variables:

   151

            variable = CFileClasses["variables_variable"]()

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            variable.setname(var["Name"])

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            variable.settype(var["Type"])

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            variable.setclass(var["Class"])

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            self.CFile.variables.appendvariable(variable)

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   157

    def GetVariables(self):

   158

        datas = []

   159

        for var in self.CFile.variables.getvariable():

   160

            datas.append({"Name" : var.getname(), "Type" : var.gettype(), "Class" : var.getclass()})

   161

        return datas

   162

   163

    def GetVariableLocationTree(self):

   164

        '''See PlugTemplate.GetVariableLocationTree() for a description.'''

   165

   166

        current_location = ".".join(map(str, self.GetCurrentLocation()))

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   168

        vars = []

   169

        input = output = 0

   170

        for var in self.CFile.variables.getvariable():

   171

            var_size = self.GetSizeOfType(var.gettype())

   172

            if var.getclass() == "input":

   173

                var_class = LOCATION_VAR_INPUT

   174

                var_location = "%%I%s%s.%d"%(var_size, current_location, input)

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                input += 1

   176

            else:

   177

                var_class = LOCATION_VAR_OUTPUT

   178

                var_location = "%%Q%s%s.%d"%(var_size, current_location, output)

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                output += 1

   180

            vars.append({"name": var.getname(),

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                         "type": var_class,

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                         "size": var_size,

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                         "IEC_type": var.gettype(),

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                         "location": var_location,

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                         "description": "",

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                         "children": []})

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   188

        return  {"name": self.BaseParams.getName(),

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                "type": LOCATION_PLUGIN,

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                "location": self.GetFullIEC_Channel(),

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                "children": vars}

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   193

    def SetPartText(self, name, text):

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        if name == "Includes":

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            self.CFile.includes.settext(text)

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        elif name == "Globals":

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            self.CFile.globals.settext(text)

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        elif name == "Init":

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            self.CFile.initFunction.settext(text)

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        elif name == "CleanUp":

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            self.CFile.cleanUpFunction.settext(text)

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        elif name == "Retrieve":

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            self.CFile.retrieveFunction.settext(text)

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        elif name == "Publish":

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            self.CFile.publishFunction.settext(text)

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   207

    def GetPartText(self, name):

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        if name == "Includes":

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            return self.CFile.includes.gettext()

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        elif name == "Globals":

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            return self.CFile.globals.gettext()

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        elif name == "Init":

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            return self.CFile.initFunction.gettext()

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        elif name == "CleanUp":

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            return self.CFile.cleanUpFunction.gettext()

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        elif name == "Retrieve":

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            return self.CFile.retrieveFunction.gettext()

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        elif name == "Publish":

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            return self.CFile.publishFunction.gettext()

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        return ""

   221

   222

    _View = None

   223

    def _OpenView(self):

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        if not self._View:

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            def _onclose():

   226

                self._View = None

   227

            def _onsave():

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                self.GetPlugRoot().SaveProject()

   229

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

   230

            self._View._onclose = _onclose

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            self._View._onsave = _onsave

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            self._View.Show()

   233

   234

    PluginMethods = [

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        {"bitmap" : os.path.join("images", "EditCfile"),

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         "name" : _("Edit C File"), 

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         "tooltip" : _("Edit C File"),

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         "method" : "_OpenView"},

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    ]

   240

   241

    def OnPlugSave(self):

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        filepath = self.CFileName()

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   244

        text = "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n"

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        extras = {"xmlns":"http://www.w3.org/2001/XMLSchema",

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                  "xmlns:xsi":"http://www.w3.org/2001/XMLSchema-instance",

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                  "xsi:schemaLocation" : "cext_xsd.xsd"}

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        text += self.CFile.generateXMLText("CFile", 0, extras)

   249

   250

        xmlfile = open(filepath,"w")

   251

        xmlfile.write(text)

   252

        xmlfile.close()

   253

   254

        self.CFileBuffer.CurrentSaved()

   255

        return True

   256

   257

    def PlugGenerate_C(self, buildpath, locations):

   258

        """

   259

        Generate C code

   260

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

   261

        @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,...)

   267

            }, ...]

   268

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

   269

        """

   270

        current_location = self.GetCurrentLocation()

   271

        # define a unique name for the generated C file

   272

        location_str = "_".join(map(str, current_location))

   273

   274

        text = "/* Code generated by Beremiz c_ext plugin */\n\n"

   275

   276

        # Adding includes

   277

        text += "/* User includes */\n"

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        text += self.CFile.includes.gettext()

   279

        text += "\n"

   280

   281

        text += """/* Beremiz c_ext plugin includes */

   282

#ifdef _WINDOWS_H

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  #include "iec_types.h"

   284

#else

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  #include "iec_std_lib.h"

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#endif

   287

   288

"""

   289

   290

        # Adding variables

   291

        vars = []

   292

        inputs = outputs = 0

   293

        for variable in self.CFile.variables.variable:

   294

            var = {"Name" : variable.getname(), "Type" : variable.gettype()}

   295

            if variable.getclass() == "input":

   296

                var["location"] = "__I%s%s_%d"%(self.GetSizeOfType(var["Type"]), location_str, inputs)

   297

                inputs += 1

   298

            else:

   299

                var["location"] = "__Q%s%s_%d"%(self.GetSizeOfType(var["Type"]), location_str, outputs)

   300

                outputs += 1

   301

            vars.append(var)

   302

        text += "/* Beremiz c_ext plugin user variables definition */\n"

   303

        base_types = self.GetPlugRoot().GetBaseTypes()

   304

        for var in vars:

   305

            if var["Type"] in base_types:

   306

                prefix = "IEC_"

   307

            else:

   308

                prefix = ""

   309

            text += "%s%s beremiz%s;\n"%(prefix, var["Type"], var["location"])

   310

            text += "%s%s *%s = &beremiz%s;\n"%(prefix, var["Type"], var["location"], var["location"])

   311

        text += "/* User variables reference */\n"

   312

        for var in vars:

   313

            text += "#define %s beremiz%s\n"%(var["Name"], var["location"])

   314

        text += "\n"

   315

   316

        # Adding user global variables and routines

   317

        text += "/* User internal user variables and routines */\n"

   318

        text += self.CFile.globals.gettext()

   319

   320

        # Adding Beremiz plugin functions

   321

        text += "/* Beremiz plugin functions */\n"

   322

        text += "int __init_%s(int argc,char **argv)\n{\n"%location_str

   323

        text += self.CFile.initFunction.gettext()

   324

        text += "  return 0;\n"

   325

        text += "\n}\n\n"

   326

   327

        text += "void __cleanup_%s(void)\n{\n"%location_str

   328

        text += self.CFile.cleanUpFunction.gettext()

   329

        text += "\n}\n\n"

   330

   331

        text += "void __retrieve_%s(void)\n{\n"%location_str

   332

        text += self.CFile.retrieveFunction.gettext()

   333

        text += "\n}\n\n"

   334

   335

        text += "void __publish_%s(void)\n{\n"%location_str

   336

        text += self.CFile.publishFunction.gettext()

   337

        text += "\n}\n\n"

   338

   339

        Gen_Cfile_path = os.path.join(buildpath, "CFile_%s.c"%location_str)

   340

        cfile = open(Gen_Cfile_path,'w')

   341

        cfile.write(text)

   342

        cfile.close()

   343

   344

        matiec_flags = '"-I%s"'%os.path.abspath(self.GetPlugRoot().GetIECLibPath())

   345

   346

        return [(Gen_Cfile_path, str(self.CExtension.getCFLAGS() + matiec_flags))],str(self.CExtension.getLDFLAGS()),True

   347

   348

#-------------------------------------------------------------------------------

   349

#                      Current Buffering Management Functions

   350

#-------------------------------------------------------------------------------

   351

   352

    """

   353

    Return a copy of the project

   354

    """

   355

    def Copy(self, model):

   356

        return cPickle.loads(cPickle.dumps(model))

   357

   358

    def BufferCFile(self):

   359

        self.CFileBuffer.Buffering(self.Copy(self.CFile))

   360

   361

    def StartBuffering(self):

   362

        self.CFileBuffer.Buffering(self.CFile)

   363

        self.Buffering = True

   364

   365

    def EndBuffering(self):

   366

        if self.Buffering:

   367

            self.CFile = self.Copy(self.CFile)

   368

            self.Buffering = False

   369

   370

    def CFileIsSaved(self):

   371

        if self.CFileBuffer:

   372

            return self.CFileBuffer.IsCurrentSaved()

   373

        else:

   374

            return True

   375

   376

    def LoadPrevious(self):

   377

        self.CFile = self.Copy(self.CFileBuffer.Previous())

   378

   379

    def LoadNext(self):

   380

        self.CFile = self.Copy(self.CFileBuffer.Next())

   381

   382

    def GetBufferState(self):

   383

        first = self.CFileBuffer.IsFirst()

   384

        last = self.CFileBuffer.IsLast()

   385

        return not first, not last

   386

   387

class RootClass:

   388

   389

    PlugChildsTypes = [("C_File",_Cfile, "C file")]

   390

   391

    def PlugGenerate_C(self, buildpath, locations):

   392

        return [],"",False

   393

   394