1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D -->
3 // File: ParametersPlugin_Parameter.cpp
4 // Created: 23 MArch 2015
7 #include "ParametersPlugin_Parameter.h"
8 #include <ParametersPlugin_PyInterp.h>
10 #include <ModelAPI_AttributeString.h>
11 #include <ModelAPI_ResultParameter.h>
12 #include <ModelAPI_AttributeDouble.h>
13 #include <ModelAPI_AttributeRefList.h>
14 #include <ModelAPI_Tools.h>
15 #include <ModelAPI_Session.h>
16 #include <ModelAPI_Validator.h>
21 ParametersPlugin_Parameter::ParametersPlugin_Parameter()
23 myInterp = std::shared_ptr<ParametersPlugin_PyInterp>(new ParametersPlugin_PyInterp());
24 myInterp->initialize();
27 ParametersPlugin_Parameter::~ParametersPlugin_Parameter()
31 void ParametersPlugin_Parameter::initAttributes()
33 data()->addAttribute(VARIABLE_ID(), ModelAPI_AttributeString::typeId());
34 data()->addAttribute(EXPRESSION_ID(), ModelAPI_AttributeString::typeId());
35 data()->addAttribute(ARGUMENTS_ID(), ModelAPI_AttributeRefList::typeId());
36 ModelAPI_Session::get()->validators()->registerNotObligatory(getKind(), ARGUMENTS_ID());
39 bool ParametersPlugin_Parameter::isInHistory()
44 void ParametersPlugin_Parameter::attributeChanged(const std::string& theID)
46 if (theID == EXPRESSION_ID()) { // recompute only on change of the expression
47 ResultParameterPtr aParam = document()->createParameter(data());
49 std::string anExpression = string(EXPRESSION_ID())->value();
50 if(anExpression.empty()) {
51 // clear error/result if the expression is empty
55 std::string outErrorMessage;
56 double aValue = evaluate(anExpression, outErrorMessage);
58 std::string aName = string(VARIABLE_ID())->value();
59 std::ostringstream sstream;
61 std::string aParamValue = sstream.str();
62 data()->setName(aName);
63 aParam->data()->setName(aName);
65 if (!outErrorMessage.empty()) {
66 std::string aStateMsg("Error: " + outErrorMessage);
67 data()->execState(ModelAPI_StateExecFailed);
68 setError(aStateMsg, false);
70 static const std::string anEmptyMsg(""); // it is checked in the validator by the empty message
71 setError(anEmptyMsg, false);
72 data()->execState(ModelAPI_StateDone);
75 AttributeDoublePtr aValueAttribute = aParam->data()->real(ModelAPI_ResultParameter::VALUE());
76 aValueAttribute->setValue(aValue);
81 void ParametersPlugin_Parameter::execute()
83 // just call recompute
84 attributeChanged(EXPRESSION_ID());
87 double ParametersPlugin_Parameter::evaluate(const std::string& theExpression, std::string& theError)
90 std::list<std::string> anExprParams = myInterp->compile(theExpression);
91 // find expression's params in the model
92 std::list<std::string> aContext;
93 std::list<std::string>::iterator it = anExprParams.begin();
94 std::list<ResultParameterPtr> aParamsList;
95 for ( ; it != anExprParams.end(); it++) {
97 ResultParameterPtr aParamRes;
98 if (!ModelAPI_Tools::findVariable(*it, aValue, aParamRes)) continue;
99 aParamsList.push_back(aParamRes);
101 std::ostringstream sstream;
103 std::string aParamValue = sstream.str();
104 aContext.push_back(*it + "=" + aParamValue);
106 // compare the list of parameters to store if changed
107 AttributeRefListPtr aParams = reflist(ARGUMENTS_ID());
108 bool aDifferent = aParams->size() != aParamsList.size();
110 std::list<ResultParameterPtr>::iterator aNewIter = aParamsList.begin();
111 std::list<ObjectPtr> anOldList = aParams->list();
112 std::list<ObjectPtr>::iterator anOldIter = anOldList.begin();
113 for(; !aDifferent && aNewIter != aParamsList.end(); aNewIter++, anOldIter++) {
114 if (*aNewIter != *anOldIter)
120 std::list<ResultParameterPtr>::iterator aNewIter = aParamsList.begin();
121 for(; aNewIter != aParamsList.end(); aNewIter++) {
122 aParams->append(*aNewIter);
126 myInterp->extendLocalContext(aContext);
127 double result = myInterp->evaluate(theExpression, theError);
128 myInterp->clearLocalContext();
132 bool ParametersPlugin_Parameter::isPreviewNeeded() const