beremiz/CodeFileTreeNode.py at master · amescon/beremiz · GitHub

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#!/usr/bin/env python

# -*- coding: utf-8 -*-

# This file is part of Beremiz, a Integrated Development Environment for

# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.

# See COPYING file for copyrights details.

# This program is free software; you can redistribute it and/or

# modify it under the terms of the GNU General Public License

# as published by the Free Software Foundation; either version 2

# of the License, or (at your option) any later version.

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

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:

(fname, lnum, src) = ((self.CODEFILE_NAME,) + error)

self.GetCTRoot().logger.write_warning(XSDSchemaErrorMessage.format(a1 = fname, a2 = lnum, a3 = src))

self.CreateCodeFileBuffer(True)

except Exception, exc:

msg = _("Couldn't load confnode parameters {a1} :\n {a2}").format(a1 = CTNName, a2 = unicode(exc))

self.GetCTRoot().logger.write_error(msg)

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

beremiz/CodeFileTreeNode.py at master · amescon/beremiz · GitHub

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