plcopen/XSLTModelQuery.py
author Edouard Tisserant <edouard.tisserant@gmail.com>
Sun, 12 Mar 2023 00:51:53 +0100
branchwxPython4
changeset 3746 41be039fbb8c
parent 2627 3ba6a2d26507
child 3750 f62625418bff
permissions -rw-r--r--
IDE: fix again ruberband with gtk3.

DC logical functions are now disabled when using GTK3.
Apparently using XOR was still having an effect.
Use regular black pen with no logical funciton instead.
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# This file is part of Beremiz.
# See COPYING file for copyrights details.

from __future__ import absolute_import
import os
from lxml import etree
import util.paths as paths
from plcopen.structures import StdBlckLibs
from XSLTransform import XSLTransform

ScriptDirectory = paths.AbsDir(__file__)

class XSLTModelQuery(XSLTransform):
    """ a class to handle XSLT queries on project and libs """
    def __init__(self, controller, xsltpath, ext=None):

        # arbitrary set debug to false, updated later
        self.debug = False

        # merge xslt extensions for library access to query specific ones
        xsltext = [
            ("GetProject", lambda *_ignored:
             [controller.GetProject(self.debug)]),
            ("GetStdLibs", lambda *_ignored:
             [lib for lib in StdBlckLibs.values()]),
            ("GetExtensions", lambda *_ignored:
             [ctn["types"] for ctn in controller.ConfNodeTypes])
        ]

        if ext is not None:
            xsltext.extend(ext)

        XSLTransform.__init__(self,
                           os.path.join(ScriptDirectory, xsltpath),
                           xsltext)
    def _process_xslt(self, root, debug, **kwargs):
        self.debug = debug
        return self.transform(root, **kwargs)

# -------------------------------------------------------------------------------
#           Helpers functions for translating list of arguments
#                       from xslt to valid arguments
# -------------------------------------------------------------------------------


def _StringValue(x):
    return x


def _BoolValue(x):
    return x in ["true", "0"]


def _translate_args(translations, args):
    return [translate(arg[0]) if len(arg) > 0 else None
            for translate, arg in
            zip(translations, args)]