+ data()->addAttribute(ParametersPlugin_Parameter::VARIABLE_ID(),
+ ModelAPI_AttributeString::typeId());
+ data()->addAttribute(ParametersPlugin_Parameter::EXPRESSION_ID(),
+ ModelAPI_AttributeString::typeId());
+}
+
+bool ParametersPlugin_Parameter::isInHistory()
+{
+ return false;
+}
+
+void ParametersPlugin_Parameter::attributeChanged(const std::string&)
+{
+ ResultParameterPtr aParam = document()->createParameter(data());
+
+ std::string anExpression = string(ParametersPlugin_Parameter::EXPRESSION_ID())->value();
+ if(anExpression.empty()) {
+ // clear error/result if the expression is empty
+ setError("", false);
+ return;
+ }
+ std::string outErrorMessage;
+ double aValue = evaluate(anExpression, outErrorMessage);
+ // Name
+ std::string aName = string(ParametersPlugin_Parameter::VARIABLE_ID())->value();
+ std::ostringstream sstream;
+ sstream << aValue;
+ std::string aParamValue = sstream.str();
+ data()->setName(aName);
+ aParam->data()->setName(aName);
+ // Error
+ std::string aStateMsg;
+ if (!outErrorMessage.empty()) {
+ aStateMsg = "Error: " + outErrorMessage;
+ data()->execState(ModelAPI_StateExecFailed);
+ }
+ setError(aStateMsg, false);
+ // Value
+ AttributeDoublePtr aValueAttribute = aParam->data()->real(ModelAPI_ResultParameter::VALUE());
+ aValueAttribute->setValue(aValue);
+ setResult(aParam);