- ResultParameterPtr aParameterResult = document()->createParameter(data());
- // Value
- AttributeDoublePtr aValueAttribute = aParameterResult->data()->real(ModelAPI_ResultParameter::VALUE());
- double aValue = evaluate(anExpression);
- aValueAttribute->setValue(aValue);
- setResult(aParameterResult);
- // Name
- std::string aName = string(ParametersPlugin_Parameter::VARIABLE_ID())->value();
+void ParametersPlugin_Parameter::attributeChanged(const std::string& theID)
+{
+ if (theID == EXPRESSION_ID())
+ updateExpression();
+}
+
+void ParametersPlugin_Parameter::updateName()
+{
+ std::string aName = string(VARIABLE_ID())->value();
+ data()->setName(aName);
+
+ ResultParameterPtr aParam = document()->createParameter(data());
+ aParam->data()->setName(aName);
+ setResult(aParam);
+}
+
+void ParametersPlugin_Parameter::updateExpression()
+{
+ std::string anExpression = string(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);