laurent@366: import os
laurent@654: from PLCControler import UndoBuffer
laurent@657: from PythonEditor import PythonEditor
laurent@366: 
laurent@366: from xml.dom import minidom
laurent@366: from xmlclass import *
laurent@366: import cPickle
laurent@366: 
Edouard@721: PythonClasses = GenerateClassesFromXSD(os.path.join(os.path.dirname(__file__), "py_ext_xsd.xsd")) 
laurent@366: 
Edouard@728: class PythonFileCTNMixin:
laurent@366:     
laurent@657:     EditorType = PythonEditor
laurent@657:     
laurent@366:     def __init__(self):
laurent@366:         
Edouard@717:         self.ConfNodeMethods.insert(0, 
Edouard@734:                 {"bitmap" : "editPYTHONcode",
laurent@366:                  "name" : _("Edit Python File"), 
laurent@366:                  "tooltip" : _("Edit Python File"),
laurent@366:                  "method" : "_OpenView"},
laurent@366:         )
laurent@366: 
laurent@366:         filepath = self.PythonFileName()
laurent@366:         
laurent@366:         self.PythonCode = PythonClasses["Python"]()
laurent@366:         if os.path.isfile(filepath):
laurent@366:             xmlfile = open(filepath, 'r')
laurent@366:             tree = minidom.parse(xmlfile)
laurent@366:             xmlfile.close()
laurent@366:             
laurent@366:             for child in tree.childNodes:
laurent@366:                 if child.nodeType == tree.ELEMENT_NODE and child.nodeName == "Python":
laurent@366:                     self.PythonCode.loadXMLTree(child, ["xmlns", "xmlns:xsi", "xsi:schemaLocation"])
laurent@657:                     self.CreatePythonBuffer(True)
laurent@366:         else:
laurent@657:             self.CreatePythonBuffer(False)
Edouard@718:             self.OnCTNSave()
laurent@366: 
laurent@366:     def PythonFileName(self):
Edouard@721:         return os.path.join(self.CTNPath(), "py_ext.xml")
laurent@366: 
laurent@366:     def GetFilename(self):
laurent@366:         if self.PythonBuffer.IsCurrentSaved():
Edouard@721:             return "py_ext"
laurent@366:         else:
Edouard@721:             return "~py_ext~"
laurent@366: 
laurent@366:     def SetPythonCode(self, text):
laurent@366:         self.PythonCode.settext(text)
laurent@366:         
laurent@366:     def GetPythonCode(self):
laurent@366:         return self.PythonCode.gettext()
laurent@366:     
Edouard@718:     def CTNTestModified(self):
laurent@657:         return self.ChangesToSave or not self.PythonIsSaved()
laurent@366:     
Edouard@718:     def OnCTNSave(self):
laurent@366:         filepath = self.PythonFileName()
laurent@366:         
laurent@366:         text = "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n"
laurent@366:         extras = {"xmlns":"http://www.w3.org/2001/XMLSchema",
laurent@366:                   "xmlns:xsi":"http://www.w3.org/2001/XMLSchema-instance",
Edouard@721:                   "xsi:schemaLocation" : "py_ext_xsd.xsd"}
laurent@366:         text += self.PythonCode.generateXMLText("Python", 0, extras)
laurent@366: 
laurent@366:         xmlfile = open(filepath,"w")
laurent@430:         xmlfile.write(text.encode("utf-8"))
laurent@366:         xmlfile.close()
laurent@366:         
laurent@657:         self.MarkPythonAsSaved()
laurent@366:         return True
laurent@366:         
laurent@366: #-------------------------------------------------------------------------------
laurent@366: #                      Current Buffering Management Functions
laurent@366: #-------------------------------------------------------------------------------
laurent@366: 
laurent@366:     """
laurent@366:     Return a copy of the project
laurent@366:     """
laurent@366:     def Copy(self, model):
laurent@366:         return cPickle.loads(cPickle.dumps(model))
laurent@366: 
laurent@657:     def CreatePythonBuffer(self, saved):
laurent@657:         self.Buffering = False
laurent@657:         self.PythonBuffer = UndoBuffer(cPickle.dumps(self.PythonCode), saved)
laurent@657: 
laurent@366:     def BufferPython(self):
laurent@657:         self.PythonBuffer.Buffering(cPickle.dumps(self.PythonCode))
laurent@366:     
laurent@366:     def StartBuffering(self):
laurent@366:         self.Buffering = True
laurent@366:         
laurent@366:     def EndBuffering(self):
laurent@366:         if self.Buffering:
laurent@657:             self.PythonBuffer.Buffering(cPickle.dumps(self.PythonCode))
laurent@366:             self.Buffering = False
laurent@366:     
laurent@657:     def MarkPythonAsSaved(self):
laurent@657:         self.EndBuffering()
laurent@657:         self.PythonBuffer.CurrentSaved()
laurent@657:     
laurent@657:     def PythonIsSaved(self):
laurent@657:         return self.PythonBuffer.IsCurrentSaved() and not self.Buffering
laurent@657:         
laurent@366:     def LoadPrevious(self):
laurent@657:         self.EndBuffering()
laurent@657:         self.PythonCode = cPickle.loads(self.PythonBuffer.Previous())
laurent@366:     
laurent@366:     def LoadNext(self):
laurent@657:         self.PythonCode = cPickle.loads(self.PythonBuffer.Next())
laurent@366:     
laurent@366:     def GetBufferState(self):
laurent@657:         first = self.PythonBuffer.IsFirst() and not self.Buffering
laurent@366:         last = self.PythonBuffer.IsLast()
laurent@366:         return not first, not last
laurent@366: