CodeFileTreeNode.py
author Andrey Skvortsov <andrej.skvortzov@gmail.com>
Thu, 28 Sep 2017 12:20:40 +0300
changeset 1831 56b48961cc68
parent 1782 5b6ad7a7fd9d
child 1837 c507c363625e
permissions -rw-r--r--
fix (old-style-class) Old-style class defined error for most parts of
the code

only PyJS code is left, because it does some fancy tricks and can't be
easily fixed. So far PyJS doesn't support Python3 anyway.
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# This file is part of Beremiz, a Integrated Development Environment for
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# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.
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#
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# Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD
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#
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# See COPYING file for copyrights details.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
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import os
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import re
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import traceback
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from copy import deepcopy
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from lxml import etree
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from xmlclass import GenerateParserFromXSDstring
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from PLCControler import UndoBuffer
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from ConfigTreeNode import XSDSchemaErrorMessage
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CODEFILE_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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            xmlns:xhtml="http://www.w3.org/1999/xhtml">
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  <xsd:element name="%(codefile_name)s">
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    <xsd:complexType>
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      <xsd:sequence>
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        %(includes_section)s
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        <xsd:element name="variables">
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          <xsd:complexType>
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            <xsd:sequence>
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              <xsd:element name="variable" minOccurs="0" maxOccurs="unbounded">
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                <xsd:complexType>
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                  <xsd:attribute name="name" type="xsd:string" use="required"/>
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                  <xsd:attribute name="type" type="xsd:string" use="required"/>
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                  <xsd:attribute name="class" use="optional">
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                    <xsd:simpleType>
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                      <xsd:restriction base="xsd:string">
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                        <xsd:enumeration value="input"/>
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                        <xsd:enumeration value="memory"/>
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                        <xsd:enumeration value="output"/>
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                      </xsd:restriction>
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                    </xsd:simpleType>
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                  </xsd:attribute>
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                  <xsd:attribute name="initial" type="xsd:string" use="optional" default=""/>
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                  <xsd:attribute name="desc" type="xsd:string" use="optional" default=""/>
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                  <xsd:attribute name="onchange" type="xsd:string" use="optional" default=""/>
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                  <xsd:attribute name="opts" type="xsd:string" use="optional" default=""/>
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                </xsd:complexType>
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              </xsd:element>
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            </xsd:sequence>
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          </xsd:complexType>
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        </xsd:element>
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        %(sections)s
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      </xsd:sequence>
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    </xsd:complexType>
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  </xsd:element>
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  <xsd:complexType name="CodeText">
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    <xsd:annotation>
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      <xsd:documentation>Formatted text according to parts of XHTML 1.1</xsd:documentation>
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    </xsd:annotation>
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    <xsd:sequence>
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      <xsd:any namespace="http://www.w3.org/1999/xhtml" processContents="lax"/>
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    </xsd:sequence>
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  </xsd:complexType>
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</xsd:schema>"""
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SECTION_TAG_ELEMENT = "<xsd:element name=\"%s\" type=\"CodeText\"/>"
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class CodeFile(object):
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    CODEFILE_NAME = "CodeFile"
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    SECTIONS_NAMES = []
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    def __init__(self):
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        sections_str = {"codefile_name": self.CODEFILE_NAME}
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        if "includes" in self.SECTIONS_NAMES:
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            sections_str["includes_section"] = SECTION_TAG_ELEMENT % "includes"
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        else:
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            sections_str["includes_section"] = ""
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        sections_str["sections"] = "\n".join(
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            [SECTION_TAG_ELEMENT % name
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             for name in self.SECTIONS_NAMES if name != "includes"])
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        self.CodeFileParser = GenerateParserFromXSDstring(
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            CODEFILE_XSD % sections_str)
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        self.CodeFileVariables = etree.XPath("variables/variable")
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        filepath = self.CodeFileName()
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        if os.path.isfile(filepath):
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            xmlfile = open(filepath, 'r')
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            codefile_xml = xmlfile.read()
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            xmlfile.close()
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            codefile_xml = codefile_xml.replace(
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                '<%s>' % self.CODEFILE_NAME,
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                '<%s xmlns:xhtml="http://www.w3.org/1999/xhtml">' % self.CODEFILE_NAME)
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            for cre, repl in [
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                    (re.compile("(?<!<xhtml:p>)(?:<!\[CDATA\[)"), "<xhtml:p><![CDATA["),
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                    (re.compile("(?:]]>)(?!</xhtml:p>)"), "]]></xhtml:p>")]:
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                codefile_xml = cre.sub(repl, codefile_xml)
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            try:
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                self.CodeFile, error = self.CodeFileParser.LoadXMLString(codefile_xml)
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                if error is not None:
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                    (fname, lnum, src) = ((self.CODEFILE_NAME,) + error)
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                    self.GetCTRoot().logger.write_warning(XSDSchemaErrorMessage.format(a1=fname, a2=lnum, a3=src))
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                self.CreateCodeFileBuffer(True)
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            except Exception, exc:
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                msg = _("Couldn't load confnode parameters {a1} :\n {a2}").format(a1=CTNName, a2=unicode(exc))
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                self.GetCTRoot().logger.write_error(msg)
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                self.GetCTRoot().logger.write_error(traceback.format_exc())
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        else:
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            self.CodeFile = self.CodeFileParser.CreateRoot()
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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 GenerateNewName(self, format, start_idx):
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        return self.GetCTRoot().GenerateNewName(
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            None, None, format, start_idx,
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            dict([(var.getname().upper(), True)
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                  for var in self.CodeFile.variables.getvariable()]))
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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 = self.CodeFileParser.CreateElement("variable", "variables")
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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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            variable.setdesc(var["Description"])
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            variable.setonchange(var["OnChange"])
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            variable.setopts(var["Options"])
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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.CodeFileVariables(self.CodeFile):
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            datas.append({
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                "Name":        var.getname(),
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                "Type":        var.gettype(),
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                "Initial":     var.getinitial(),
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                "Description": var.getdesc(),
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                "OnChange":    var.getonchange(),
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                "Options":     var.getopts(),
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            })
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        return datas
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    def SetTextParts(self, parts):
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        for section in self.SECTIONS_NAMES:
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            section_code = parts.get(section)
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            if section_code is not None:
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                getattr(self.CodeFile, section).setanyText(section_code)
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    def GetTextParts(self):
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        return dict([(section, getattr(self.CodeFile, section).getanyText())
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                     for section in self.SECTIONS_NAMES])
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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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        xmlfile = open(filepath, "w")
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        xmlfile.write(etree.tostring(
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            self.CodeFile,
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            pretty_print=True,
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            xml_declaration=True,
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            encoding='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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        variables = self.CodeFileVariables(self.CodeFile)
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        ret = [(variable.getname(),
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                variable.gettype(),
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                variable.getinitial())
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               for variable in variables]
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        ret.extend([("On"+variable.getname()+"Change", "python_poll", "")
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                    for variable in variables
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                    if variable.getonchange()])
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        return ret
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   209
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   210
# -------------------------------------------------------------------------------
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#                      Current Buffering Management Functions
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   212
# -------------------------------------------------------------------------------
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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 deepcopy(model)
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    def CreateCodeFileBuffer(self, saved):
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        self.Buffering = False
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        self.CodeFileBuffer = UndoBuffer(self.CodeFileParser.Dumps(self.CodeFile), saved)
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   223
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    def BufferCodeFile(self):
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        self.CodeFileBuffer.Buffering(self.CodeFileParser.Dumps(self.CodeFile))
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   226
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    def StartBuffering(self):
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        self.Buffering = True
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   229
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    def EndBuffering(self):
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        if self.Buffering:
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            self.CodeFileBuffer.Buffering(self.CodeFileParser.Dumps(self.CodeFile))
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            self.Buffering = False
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   234
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    def MarkCodeFileAsSaved(self):
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        self.EndBuffering()
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        self.CodeFileBuffer.CurrentSaved()
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   238
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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 = self.CodeFileParser.Loads(self.CodeFileBuffer.Previous())
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    def LoadNext(self):
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        self.CodeFile = self.CodeFileParser.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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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
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        return not first, not last