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CodeFileTreeNode.py
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CodeFileTreeNode.py
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import os, re, traceback
from copy import deepcopy
from lxml import etree
from xmlclass import GenerateParserFromXSDstring
from PLCControler import UndoBuffer
from ConfigTreeNode import XSDSchemaErrorMessage
CODEFILE_XSD = """<?xml version="1.0" encoding="ISO-8859-1" ?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xhtml="http://www.w3.org/1999/xhtml">
<xsd:element name="%(codefile_name)s">
<xsd:complexType>
<xsd:sequence>
%(includes_section)s
<xsd:element name="variables">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="variable" minOccurs="0" maxOccurs="unbounded">
<xsd:complexType>
<xsd:attribute name="name" type="xsd:string" use="required"/>
<xsd:attribute name="type" type="xsd:string" use="required"/>
<xsd:attribute name="class" use="optional">
<xsd:simpleType>
<xsd:restriction base="xsd:string">
<xsd:enumeration value="input"/>
<xsd:enumeration value="memory"/>
<xsd:enumeration value="output"/>
</xsd:restriction>
</xsd:simpleType>
</xsd:attribute>
<xsd:attribute name="initial" type="xsd:string" use="optional" default=""/>
<xsd:attribute name="desc" type="xsd:string" use="optional" default=""/>
<xsd:attribute name="onchange" type="xsd:string" use="optional" default=""/>
<xsd:attribute name="opts" type="xsd:string" use="optional" default=""/>
</xsd:complexType>
</xsd:element>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
%(sections)s
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:complexType name="CodeText">
<xsd:annotation>
<xsd:documentation>Formatted text according to parts of XHTML 1.1</xsd:documentation>
</xsd:annotation>
<xsd:sequence>
<xsd:any namespace="http://www.w3.org/1999/xhtml" processContents="lax"/>
</xsd:sequence>
</xsd:complexType>
</xsd:schema>"""
SECTION_TAG_ELEMENT = "<xsd:element name=\"%s\" type=\"CodeText\"/>"
class CodeFile:
CODEFILE_NAME = "CodeFile"
SECTIONS_NAMES = []
def __init__(self):
sections_str = {"codefile_name": self.CODEFILE_NAME}
if "includes" in self.SECTIONS_NAMES:
sections_str["includes_section"] = SECTION_TAG_ELEMENT % "includes"
else:
sections_str["includes_section"] = ""
sections_str["sections"] = "\n".join(
[SECTION_TAG_ELEMENT % name
for name in self.SECTIONS_NAMES if name != "includes"])
self.CodeFileParser = GenerateParserFromXSDstring(
CODEFILE_XSD % sections_str)
self.CodeFileVariables = etree.XPath("variables/variable")
filepath = self.CodeFileName()
if os.path.isfile(filepath):
xmlfile = open(filepath, 'r')
codefile_xml = xmlfile.read()
xmlfile.close()
codefile_xml = codefile_xml.replace(
'<%s>' % self.CODEFILE_NAME,
'<%s xmlns:xhtml="http://www.w3.org/1999/xhtml">' % self.CODEFILE_NAME)
for cre, repl in [
(re.compile("(?<!<xhtml:p>)(?:<!\[CDATA\[)"), "<xhtml:p><![CDATA["),
(re.compile("(?:]]>)(?!</xhtml:p>)"), "]]></xhtml:p>")]:
codefile_xml = cre.sub(repl, codefile_xml)
try:
self.CodeFile, error = self.CodeFileParser.LoadXMLString(codefile_xml)
if error is not None:
self.GetCTRoot().logger.write_warning(
XSDSchemaErrorMessage % ((self.CODEFILE_NAME,) + error))
self.CreateCodeFileBuffer(True)
except Exception, exc:
self.GetCTRoot().logger.write_error(_("Couldn't load confnode parameters %s :\n %s") % (CTNName, unicode(exc)))
self.GetCTRoot().logger.write_error(traceback.format_exc())
else:
self.CodeFile = self.CodeFileParser.CreateRoot()
self.CreateCodeFileBuffer(False)
self.OnCTNSave()
def GetBaseTypes(self):
return self.GetCTRoot().GetBaseTypes()
def GetDataTypes(self, basetypes = False):
return self.GetCTRoot().GetDataTypes(basetypes=basetypes)
def GenerateNewName(self, format, start_idx):
return self.GetCTRoot().GenerateNewName(
None, None, format, start_idx,
dict([(var.getname().upper(), True)
for var in self.CodeFile.variables.getvariable()]))
def SetVariables(self, variables):
self.CodeFile.variables.setvariable([])
for var in variables:
variable = self.CodeFileParser.CreateElement("variable", "variables")
variable.setname(var["Name"])
variable.settype(var["Type"])
variable.setinitial(var["Initial"])
variable.setdesc(var["Description"])
variable.setonchange(var["OnChange"])
variable.setopts(var["Options"])
self.CodeFile.variables.appendvariable(variable)
def GetVariables(self):
datas = []
for var in self.CodeFileVariables(self.CodeFile):
datas.append({"Name" : var.getname(),
"Type" : var.gettype(),
"Initial" : var.getinitial(),
"Description" : var.getdesc(),
"OnChange" : var.getonchange(),
"Options" : var.getopts(),
})
return datas
def SetTextParts(self, parts):
for section in self.SECTIONS_NAMES:
section_code = parts.get(section)
if section_code is not None:
getattr(self.CodeFile, section).setanyText(section_code)
def GetTextParts(self):
return dict([(section, getattr(self.CodeFile, section).getanyText())
for section in self.SECTIONS_NAMES])
def CTNTestModified(self):
return self.ChangesToSave or not self.CodeFileIsSaved()
def OnCTNSave(self, from_project_path=None):
filepath = self.CodeFileName()
xmlfile = open(filepath,"w")
xmlfile.write(etree.tostring(
self.CodeFile,
pretty_print=True,
xml_declaration=True,
encoding='utf-8'))
xmlfile.close()
self.MarkCodeFileAsSaved()
return True
def CTNGlobalInstances(self):
variables = self.CodeFileVariables(self.CodeFile)
ret = [(variable.getname(),
variable.gettype(),
variable.getinitial())
for variable in variables]
ret.extend([("On"+variable.getname()+"Change", "python_poll", "")
for variable in variables
if variable.getonchange()])
return ret
#-------------------------------------------------------------------------------
# Current Buffering Management Functions
#-------------------------------------------------------------------------------
"""
Return a copy of the codefile model
"""
def Copy(self, model):
return deepcopy(model)
def CreateCodeFileBuffer(self, saved):
self.Buffering = False
self.CodeFileBuffer = UndoBuffer(self.CodeFileParser.Dumps(self.CodeFile), saved)
def BufferCodeFile(self):
self.CodeFileBuffer.Buffering(self.CodeFileParser.Dumps(self.CodeFile))
def StartBuffering(self):
self.Buffering = True
def EndBuffering(self):
if self.Buffering:
self.CodeFileBuffer.Buffering(self.CodeFileParser.Dumps(self.CodeFile))
self.Buffering = False
def MarkCodeFileAsSaved(self):
self.EndBuffering()
self.CodeFileBuffer.CurrentSaved()
def CodeFileIsSaved(self):
return self.CodeFileBuffer.IsCurrentSaved() and not self.Buffering
def LoadPrevious(self):
self.EndBuffering()
self.CodeFile = self.CodeFileParser.Loads(self.CodeFileBuffer.Previous())
def LoadNext(self):
self.CodeFile = self.CodeFileParser.Loads(self.CodeFileBuffer.Next())
def GetBufferState(self):
first = self.CodeFileBuffer.IsFirst() and not self.Buffering
last = self.CodeFileBuffer.IsLast()
return not first, not last