94 lines
3.8 KiB
Python
94 lines
3.8 KiB
Python
import FreeCAD as App
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#from xml.etree import ElementTree
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from lxml import etree
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import ExternalAppsList
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from ToolXML import *
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import re
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def create(appName, toolName):
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name = appName + toolName
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obj = App.ActiveDocument.addObject("App::DocumentObjectGroupPython", name)
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XternalAppsParametricTool(obj, appName, toolName)
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return obj
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# TODO: read-only/immutable
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typeToFreeCADTypeDict = {
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# TODO:do an XML namespace lookup instead of comparing a constant.
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'xsd:decimal': 'App::PropertyFloat',
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'xsd:string': 'App::PropertyString',
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}
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def typeToFreeCADType(type):
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if type.startswith('mime:'):
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return MIMETypeToFreeCADType(MIMEType[5:])
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if type in typeToFreeCADTypeDict:
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return typeToFreeCADTypeDict[type]
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else:
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raise ArgumentException('Unsupported XForms type')
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def MIMETypeToFreeCADType(MIMEType):
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if MIMEType == 'image/svg+xml':
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return 'App::PropertyLink'
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else:
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raise ArgumentException('Unsupported MIME type')
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class XternalAppsParametricTool():
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def __init__(self, obj, appName, toolName):
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self.Type = "XternalAppsParametricTool"
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self.AppName = appName
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self.ToolName = toolName
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obj.Proxy = self
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self.createPropertiesFromXML(obj)
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def interpretXML(self):
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types = {}
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modelInstance = {}
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inputs = {}
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xml = etree.parse(self.Tool.XForms)
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model = xml.find('./xforms:model', ns)
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instanceDocument = etree.ElementTree(model.find('./xforms:instance/*', ns))
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# Traverse the XForms instance and register all elements in modelInstance[pathToElement]
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for element in instanceDocument.findall('.//*'):
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path = instanceDocument.getpath(element)
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modelInstance[path] = element.text
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# register all xform:bind to types[pathToTargetElement]
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for bind in model.findall('xforms:bind', ns):
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for bound in instanceDocument.findall(bind.attrib['ref'], namespaces=bind.nsmap):
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path = instanceDocument.getpath(bound)
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# TODO: if has attrib type then …
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type = bind.attrib['type']
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# TODO: I guess XForms implicitly allows intersection types by using several bind statements?
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types[path] = type
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# TODO: "required" field
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# register all inputs to inputs[pathToElement]
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for group in xml.findall('./xforms:group', ns):
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for input in group.findall('./xforms:input', ns):
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# TODO: is it safe to pass input unprotected here?
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modelElement = instanceDocument.find(input.attrib['ref'], namespaces=input.nsmap)
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if modelElement is None:
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raise Exception('Could not find ' + input.attrib['ref'] + ' in instance document with namespaces=' + repr(input.nsmap))
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type = types[instanceDocument.getpath(modelElement)]
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inputs[xml.getpath(input)] = (input, modelElement, type)
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return (xml, types, modelInstance, inputs)
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def createPropertiesFromXML(self, obj):
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xml, types, modelInstance, inputs = self.interpretXML()
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for (input, modelElement, type) in inputs.values():
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simpleName = re.sub(r'( |[^-a-zA-Z0-9])+', ' ', input.attrib['label']).title().replace(' ', '')
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input.xpath('ancestor-or-self::group')
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obj.addProperty(typeToFreeCADType(type),
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simpleName,
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"/".join(input.xpath('ancestor-or-self::xforms:group/xforms:label/text()', namespaces=ns)) or None,
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input.attrib['label'] + '\nA value of type ' + type)
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@property
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def Tool(self):
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return ExternalAppsList.apps[self.AppName].Tools[self.ToolName]
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def execute(self, obj):
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"""This is called when the object is recomputed"""
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