CodeFileTreeNode.py
author Laurent Bessard
Fri, 10 May 2013 15:17:33 +0200
changeset 1121 d3838e8f1b90
parent 1100 1f46424c6220
child 1124 b1705000eba1
permissions -rw-r--r--
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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 PLCControler import UndoBuffer
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from editors.CodeFileEditor import SECTIONS_NAMES
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CodeFileClasses = GenerateClassesFromXSD(os.path.join(os.path.dirname(__file__), "code_file.xsd"))
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class CodeFile:
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    def __init__(self):
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        filepath = self.CodeFileName()
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        self.CodeFile = CodeFileClasses["CodeFile"]()
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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 in ["CodeFile", "CFile"]:
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                    self.CodeFile.loadXMLTree(child, ["xmlns", "xmlns:xsi", "xsi:schemaLocation"])
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                    self.CreateCodeFileBuffer(True)
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        else:
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            self.CreateCodeFileBuffer(False)
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            self.OnCTNSave()
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    def GetBaseTypes(self):
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        return self.GetCTRoot().GetBaseTypes()
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    def GetDataTypes(self, basetypes = False):
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        return self.GetCTRoot().GetDataTypes(basetypes=basetypes)
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    def SetVariables(self, variables):
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        self.CodeFile.variables.setvariable([])
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        for var in variables:
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            variable = CodeFileClasses["variables_variable"]()
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            variable.setname(var["Name"])
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            variable.settype(var["Type"])
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            variable.setinitial(var["Initial"])
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            self.CodeFile.variables.appendvariable(variable)
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    def GetVariables(self):
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        datas = []
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        for var in self.CodeFile.variables.getvariable():
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            datas.append({"Name" : var.getname(), "Type" : var.gettype(), "Initial" : var.getinitial()})
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        return datas
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    def SetTextParts(self, parts):
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        for section, code_object in zip(
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            SECTIONS_NAMES,
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            [self.CodeFile.includes,
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             self.CodeFile.globals,
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             self.CodeFile.initFunction,
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             self.CodeFile.cleanUpFunction,
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             self.CodeFile.retrieveFunction,
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             self.CodeFile.publishFunction]):
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            code_object.settext(parts[section])
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    def GetTextParts(self):
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        parts = {}
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        for section, code_object in zip(
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            SECTIONS_NAMES,
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            [self.CodeFile.includes,
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             self.CodeFile.globals,
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             self.CodeFile.initFunction,
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             self.CodeFile.cleanUpFunction,
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             self.CodeFile.retrieveFunction,
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             self.CodeFile.publishFunction]):
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            parts[section] = code_object.gettext()
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        return parts
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    def CTNTestModified(self):
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        return self.ChangesToSave or not self.CodeFileIsSaved()    
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    def OnCTNSave(self, from_project_path=None):
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        filepath = self.CodeFileName()
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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" : "code_file.xsd"}
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        text += self.CodeFile.generateXMLText("CodeFile", 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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        self.MarkCodeFileAsSaved()
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        return True
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    def CTNGlobalInstances(self):
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        current_location = self.GetCurrentLocation()
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        return [(variable.getname(),
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                 variable.gettype(),
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                 variable.getinitial())
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                for variable in self.CodeFile.variables.variable]
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#-------------------------------------------------------------------------------
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#                      Current Buffering Management Functions
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#-------------------------------------------------------------------------------
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    """
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    Return a copy of the codefile model
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    """
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    def Copy(self, model):
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        return cPickle.loads(cPickle.dumps(model))
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    def CreateCodeFileBuffer(self, saved):
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        self.Buffering = False
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        self.CodeFileBuffer = UndoBuffer(cPickle.dumps(self.CodeFile), saved)
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    def BufferCodeFile(self):
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        self.CodeFileBuffer.Buffering(cPickle.dumps(self.CodeFile))
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    def StartBuffering(self):
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        self.Buffering = True
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    def EndBuffering(self):
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        if self.Buffering:
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            self.CodeFileBuffer.Buffering(cPickle.dumps(self.CodeFile))
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            self.Buffering = False
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    def MarkCodeFileAsSaved(self):
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        self.EndBuffering()
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        self.CodeFileBuffer.CurrentSaved()
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    def CodeFileIsSaved(self):
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        return self.CodeFileBuffer.IsCurrentSaved() and not self.Buffering
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    def LoadPrevious(self):
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        self.EndBuffering()
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        self.CodeFile = cPickle.loads(self.CodeFileBuffer.Previous())
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    def LoadNext(self):
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        self.CodeFile = cPickle.loads(self.CodeFileBuffer.Next())
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    def GetBufferState(self):
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        first = self.CodeFileBuffer.IsFirst() and not self.Buffering
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        last = self.CodeFileBuffer.IsLast()
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        return not first, not last
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