plugins/c_ext/c_ext.py
author laurent
Wed, 17 Nov 2010 08:30:35 +0100
changeset 566 657900299557
parent 430 5981ad8547f5
child 603 e1ef99c609eb
permissions -rw-r--r--
Fix bug in LPCBeremiz that use input retrieve and publish code for ouput with the same location
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import wx
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import os
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from xml.dom import minidom
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import cPickle
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from xmlclass import *
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from plugger import PlugTemplate
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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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#-------------------------------------------------------------------------------
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#                         Undo Buffer for CFile
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#-------------------------------------------------------------------------------
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# Length of the buffer
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UNDO_BUFFER_LENGTH = 20
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"""
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Class implementing a buffer of changes made on the current editing model
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"""
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class UndoBuffer:
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    # Constructor initialising buffer
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    def __init__(self, currentstate, issaved = False):
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        self.Buffer = []
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        self.CurrentIndex = -1
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        self.MinIndex = -1
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        self.MaxIndex = -1
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        # if current state is defined
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        if currentstate:
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            self.CurrentIndex = 0
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            self.MinIndex = 0
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            self.MaxIndex = 0
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        # Initialising buffer with currentstate at the first place
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        for i in xrange(UNDO_BUFFER_LENGTH):
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            if i == 0:
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                self.Buffer.append(currentstate)
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            else:
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                self.Buffer.append(None)
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        # Initialising index of state saved
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        if issaved:
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            self.LastSave = 0
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        else:
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            self.LastSave = -1
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    # Add a new state in buffer
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    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:
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            # If the removed state was the state saved, there is no state saved in the buffer
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            if self.LastSave == self.MinIndex:
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                self.LastSave = -1
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            self.MinIndex = (self.MinIndex + 1) % UNDO_BUFFER_LENGTH
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        self.MinIndex = max(self.MinIndex, 0)
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    # Return current state of buffer
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    def Current(self):
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        return self.Buffer[self.CurrentIndex]
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    # Change current state to previous in buffer and return new current state
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    def Previous(self):
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        if self.CurrentIndex != self.MinIndex:
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            self.CurrentIndex = (self.CurrentIndex - 1) % UNDO_BUFFER_LENGTH
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            return self.Buffer[self.CurrentIndex]
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        return None
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    # Change current state to next in buffer and return new current state
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    def Next(self):
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        if self.CurrentIndex != self.MaxIndex:
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            self.CurrentIndex = (self.CurrentIndex + 1) % UNDO_BUFFER_LENGTH
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            return self.Buffer[self.CurrentIndex]
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        return None
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    # Return True if current state is the first in buffer
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    def IsFirst(self):
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        return self.CurrentIndex == self.MinIndex
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    # Return True if current state is the last in buffer
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    def IsLast(self):
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        return self.CurrentIndex == self.MaxIndex
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    # Note that current state is saved
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    def CurrentSaved(self):
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        self.LastSave = self.CurrentIndex
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    # Return True if current state is saved
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    def IsCurrentSaved(self):
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        return self.LastSave == self.CurrentIndex
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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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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="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>
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    </xsd:schema>
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    """
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    def __init__(self):
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        filepath = self.CFileName()
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        self.Buffering = False
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        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()
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            for child in tree.childNodes:
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                if child.nodeType == tree.ELEMENT_NODE and child.nodeName == "CFile":
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                    self.CFile.loadXMLTree(child, ["xmlns", "xmlns:xsi", "xsi:schemaLocation"])
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                    self.CFileBuffer = UndoBuffer(self.Copy(self.CFile), True)
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        else:
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            self.OnPlugSave()
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    def CFileName(self):
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        return os.path.join(self.PlugPath(), "cfile.xml")
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    def GetFilename(self):
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        if self.CFileBuffer.IsCurrentSaved():
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            return "cfile"
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        else:
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            return "~cfile~"
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    def GetBaseTypes(self):
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        return self.GetPlugRoot().GetBaseTypes()
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    def GetDataTypes(self, basetypes = False):
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        return self.GetPlugRoot().GetDataTypes(basetypes = basetypes)
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    def GetSizeOfType(self, type):
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        return TYPECONVERSION[self.GetPlugRoot().GetBaseType(type)]
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    def SetVariables(self, variables):
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        self.CFile.variables.setvariable([])
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        for var in variables:
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            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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    def GetVariables(self):
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        datas = []
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        for var in self.CFile.variables.getvariable():
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            datas.append({"Name" : var.getname(), "Type" : var.gettype(), "Class" : var.getclass()})
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        return datas
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    def GetVariableLocationTree(self):
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        '''See PlugTemplate.GetVariableLocationTree() for a description.'''
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        current_location = ".".join(map(str, self.GetCurrentLocation()))
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        vars = []
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        input = output = 0
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        for var in self.CFile.variables.getvariable():
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            var_size = self.GetSizeOfType(var.gettype())
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            if var.getclass() == "input":
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                var_class = LOCATION_VAR_INPUT
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                var_location = "%%I%s%s.%d"%(var_size, current_location, input)
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                input += 1
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            else:
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                var_class = LOCATION_VAR_OUTPUT
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                var_location = "%%Q%s%s.%d"%(var_size, current_location, output)
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                output += 1
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            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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        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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    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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    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 ""
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    _View = None
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    def _OpenView(self):
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        if not self._View:
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            open_cfileeditor = True
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            has_permissions = self.GetPlugRoot().CheckProjectPathPerm()
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            if not has_permissions:
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                dialog = wx.MessageDialog(self.GetPlugRoot().AppFrame,
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                                          _("You don't have write permissions.\nOpen CFileEditor anyway ?"),
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                                          _("Open CFileEditor"),
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                                          wx.YES_NO|wx.ICON_QUESTION)
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                open_cfileeditor = dialog.ShowModal() == wx.ID_YES
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                dialog.Destroy()
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            if open_cfileeditor:
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                def _onclose():
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   236
                    self._View = None
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                if has_permissions:
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                    def _onsave():
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                        self.GetPlugRoot().SaveProject()
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                else:
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                    def _onsave():
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                        pass
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                self._View = CFileEditor(self.GetPlugRoot().AppFrame, self)
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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 = [
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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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    ]
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    def OnPlugSave(self):
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        filepath = self.CFileName()
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        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)
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        xmlfile = open(filepath,"w")
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        xmlfile.write(text.encode("utf-8"))
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        xmlfile.close()
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   268
        self.CFileBuffer.CurrentSaved()
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        return True
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    def PlugGenerate_C(self, buildpath, locations):
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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
401
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        location_str = "_".join(map(str, current_location))
145
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   287
        
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        text = "/* Code generated by Beremiz c_ext plugin */\n\n"
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        # Adding includes
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   291
        text += "/* User includes */\n"
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   292
        text += self.CFile.includes.gettext()
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   293
        text += "\n"
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   294
        
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        text += """/* Beremiz c_ext plugin includes */
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#ifdef _WINDOWS_H
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  #include "iec_types.h"
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#else
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  #include "iec_std_lib.h"
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#endif
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"""
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        # Adding variables
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        vars = []
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        inputs = outputs = 0
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        for variable in self.CFile.variables.variable:
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            var = {"Name" : variable.getname(), "Type" : variable.gettype()}
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            if variable.getclass() == "input":
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                var["location"] = "__I%s%s_%d"%(self.GetSizeOfType(var["Type"]), location_str, inputs)
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                inputs += 1
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            else:
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                var["location"] = "__Q%s%s_%d"%(self.GetSizeOfType(var["Type"]), location_str, outputs)
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                outputs += 1
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            vars.append(var)
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        text += "/* Beremiz c_ext plugin user variables definition */\n"
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        base_types = self.GetPlugRoot().GetBaseTypes()
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        for var in vars:
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   319
            if var["Type"] in base_types:
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   320
                prefix = "IEC_"
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   321
            else:
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   322
                prefix = ""
180
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            text += "%s%s beremiz%s;\n"%(prefix, var["Type"], var["location"])
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            text += "%s%s *%s = &beremiz%s;\n"%(prefix, var["Type"], var["location"], var["location"])
145
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        text += "/* User variables reference */\n"
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   326
        for var in vars:
180
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   327
            text += "#define %s beremiz%s\n"%(var["Name"], var["location"])
145
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   328
        text += "\n"
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   329
        
94855f7b08a9 Improving c_ext plugin by adding an XML file format for saving C files and an graphical interface for editing this file
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        # Adding user global variables and routines
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   331
        text += "/* User internal user variables and routines */\n"
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        text += self.CFile.globals.gettext()
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   333
        
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   334
        # Adding Beremiz plugin functions
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   335
        text += "/* Beremiz plugin functions */\n"
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        text += "int __init_%s(int argc,char **argv)\n{\n"%location_str
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   337
        text += self.CFile.initFunction.gettext()
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   338
        text += "  return 0;\n"
145
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   339
        text += "\n}\n\n"
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   340
        
419
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   341
        text += "void __cleanup_%s(void)\n{\n"%location_str
145
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        text += self.CFile.cleanUpFunction.gettext()
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   343
        text += "\n}\n\n"
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   344
        
419
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   345
        text += "void __retrieve_%s(void)\n{\n"%location_str
145
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        text += self.CFile.retrieveFunction.gettext()
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        text += "\n}\n\n"
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   348
        
419
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   349
        text += "void __publish_%s(void)\n{\n"%location_str
145
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        text += self.CFile.publishFunction.gettext()
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   351
        text += "\n}\n\n"
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   352
        
94855f7b08a9 Improving c_ext plugin by adding an XML file format for saving C files and an graphical interface for editing this file
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   353
        Gen_Cfile_path = os.path.join(buildpath, "CFile_%s.c"%location_str)
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   354
        cfile = open(Gen_Cfile_path,'w')
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   355
        cfile.write(text)
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   356
        cfile.close()
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diff changeset
   357
        
418
01f6bfc01251 Fix relative matiec path problem
greg
parents: 402
diff changeset
   358
        matiec_flags = '"-I%s"'%os.path.abspath(self.GetPlugRoot().GetIECLibPath())
145
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diff changeset
   359
        
94855f7b08a9 Improving c_ext plugin by adding an XML file format for saving C files and an graphical interface for editing this file
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   360
        return [(Gen_Cfile_path, str(self.CExtension.getCFLAGS() + matiec_flags))],str(self.CExtension.getLDFLAGS()),True
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diff changeset
   361
        
94855f7b08a9 Improving c_ext plugin by adding an XML file format for saving C files and an graphical interface for editing this file
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   362
#-------------------------------------------------------------------------------
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   363
#                      Current Buffering Management Functions
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diff changeset
   364
#-------------------------------------------------------------------------------
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   365
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   366
    """
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   367
    Return a copy of the project
94855f7b08a9 Improving c_ext plugin by adding an XML file format for saving C files and an graphical interface for editing this file
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diff changeset
   368
    """
94855f7b08a9 Improving c_ext plugin by adding an XML file format for saving C files and an graphical interface for editing this file
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diff changeset
   369
    def Copy(self, model):
94855f7b08a9 Improving c_ext plugin by adding an XML file format for saving C files and an graphical interface for editing this file
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diff changeset
   370
        return cPickle.loads(cPickle.dumps(model))
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diff changeset
   371
94855f7b08a9 Improving c_ext plugin by adding an XML file format for saving C files and an graphical interface for editing this file
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   372
    def BufferCFile(self):
94855f7b08a9 Improving c_ext plugin by adding an XML file format for saving C files and an graphical interface for editing this file
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   373
        self.CFileBuffer.Buffering(self.Copy(self.CFile))
94855f7b08a9 Improving c_ext plugin by adding an XML file format for saving C files and an graphical interface for editing this file
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diff changeset
   374
    
94855f7b08a9 Improving c_ext plugin by adding an XML file format for saving C files and an graphical interface for editing this file
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   375
    def StartBuffering(self):
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   376
        self.CFileBuffer.Buffering(self.CFile)
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diff changeset
   377
        self.Buffering = True
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diff changeset
   378
        
94855f7b08a9 Improving c_ext plugin by adding an XML file format for saving C files and an graphical interface for editing this file
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diff changeset
   379
    def EndBuffering(self):
94855f7b08a9 Improving c_ext plugin by adding an XML file format for saving C files and an graphical interface for editing this file
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   380
        if self.Buffering:
94855f7b08a9 Improving c_ext plugin by adding an XML file format for saving C files and an graphical interface for editing this file
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diff changeset
   381
            self.CFile = self.Copy(self.CFile)
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diff changeset
   382
            self.Buffering = False
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diff changeset
   383
    
94855f7b08a9 Improving c_ext plugin by adding an XML file format for saving C files and an graphical interface for editing this file
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parents: 137
diff changeset
   384
    def CFileIsSaved(self):
94855f7b08a9 Improving c_ext plugin by adding an XML file format for saving C files and an graphical interface for editing this file
lbessard
parents: 137
diff changeset
   385
        if self.CFileBuffer:
94855f7b08a9 Improving c_ext plugin by adding an XML file format for saving C files and an graphical interface for editing this file
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parents: 137
diff changeset
   386
            return self.CFileBuffer.IsCurrentSaved()
94855f7b08a9 Improving c_ext plugin by adding an XML file format for saving C files and an graphical interface for editing this file
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parents: 137
diff changeset
   387
        else:
94855f7b08a9 Improving c_ext plugin by adding an XML file format for saving C files and an graphical interface for editing this file
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parents: 137
diff changeset
   388
            return True
94855f7b08a9 Improving c_ext plugin by adding an XML file format for saving C files and an graphical interface for editing this file
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diff changeset
   389
94855f7b08a9 Improving c_ext plugin by adding an XML file format for saving C files and an graphical interface for editing this file
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diff changeset
   390
    def LoadPrevious(self):
94855f7b08a9 Improving c_ext plugin by adding an XML file format for saving C files and an graphical interface for editing this file
lbessard
parents: 137
diff changeset
   391
        self.CFile = self.Copy(self.CFileBuffer.Previous())
94855f7b08a9 Improving c_ext plugin by adding an XML file format for saving C files and an graphical interface for editing this file
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parents: 137
diff changeset
   392
    
94855f7b08a9 Improving c_ext plugin by adding an XML file format for saving C files and an graphical interface for editing this file
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diff changeset
   393
    def LoadNext(self):
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parents: 137
diff changeset
   394
        self.CFile = self.Copy(self.CFileBuffer.Next())
94855f7b08a9 Improving c_ext plugin by adding an XML file format for saving C files and an graphical interface for editing this file
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parents: 137
diff changeset
   395
    
94855f7b08a9 Improving c_ext plugin by adding an XML file format for saving C files and an graphical interface for editing this file
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diff changeset
   396
    def GetBufferState(self):
94855f7b08a9 Improving c_ext plugin by adding an XML file format for saving C files and an graphical interface for editing this file
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parents: 137
diff changeset
   397
        first = self.CFileBuffer.IsFirst()
94855f7b08a9 Improving c_ext plugin by adding an XML file format for saving C files and an graphical interface for editing this file
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parents: 137
diff changeset
   398
        last = self.CFileBuffer.IsLast()
94855f7b08a9 Improving c_ext plugin by adding an XML file format for saving C files and an graphical interface for editing this file
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parents: 137
diff changeset
   399
        return not first, not last
94855f7b08a9 Improving c_ext plugin by adding an XML file format for saving C files and an graphical interface for editing this file
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parents: 137
diff changeset
   400
31
33b38700d0db added basic C Code extention plugin
etisserant
parents:
diff changeset
   401
class RootClass:
33b38700d0db added basic C Code extention plugin
etisserant
parents:
diff changeset
   402
106
9810689febb0 Added plugins creation helpstrings, changed GUI layout (more compact), solved staticbitmap issues on win32, re-designed some icons...
etisserant
parents: 105
diff changeset
   403
    PlugChildsTypes = [("C_File",_Cfile, "C file")]
31
33b38700d0db added basic C Code extention plugin
etisserant
parents:
diff changeset
   404
    
203
cb9901076a21 Added concepts :
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   405
    def PlugGenerate_C(self, buildpath, locations):
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9c26e67c041a Updated plugins PluGenerate_C to conform to plugger.py
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   406
        return [],"",False
31
33b38700d0db added basic C Code extention plugin
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   407
33b38700d0db added basic C Code extention plugin
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   408