117 lines
3.8 KiB
C++
117 lines
3.8 KiB
C++
/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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Header: FGParameterValue.h
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Author: Bertrand Coconnier
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Date started: December 09 2018
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--------- Copyright (C) 2018 B. Coconnier (bcoconni@users.sf.net) -----------
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License as published by the Free
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Software Foundation; either version 2 of the License, or (at your option) any
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later version.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
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details.
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You should have received a copy of the GNU Lesser General Public License along
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with this program; if not, write to the Free Software Foundation, Inc., 59
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Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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Further information about the GNU Lesser General Public License can also be
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found on the world wide web at http://www.gnu.org.
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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SENTRY
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
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#ifndef FGPARAMETERVALUE_H
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#define FGPARAMETERVALUE_H
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/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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INCLUDES
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
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#include <stdexcept>
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#include "math/FGRealValue.h"
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#include "math/FGPropertyValue.h"
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#include "input_output/FGXMLElement.h"
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/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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FORWARD DECLARATIONS
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
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namespace JSBSim {
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class FGPropertyManager;
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/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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CLASS DOCUMENTATION
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
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/** Represents a either a real value or a property value
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@author Bertrand Coconnier
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*/
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/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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DECLARATION: FGParameterValue
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
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class FGParameterValue : public FGParameter
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{
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public:
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FGParameterValue(Element* el, FGPropertyManager* pm) {
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string value = el->GetDataLine();
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if (el->GetNumDataLines() != 1 || value.empty()) {
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cerr << el->ReadFrom()
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<< "The element <" << el->GetName()
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<< "> must either contain a value number or a property name."
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<< endl;
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throw invalid_argument("FGParameterValue: Illegal argument defining: " + el->GetName());
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}
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Construct(value, pm);
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}
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FGParameterValue(const std::string& value, FGPropertyManager* pm) {
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Construct(value, pm);
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}
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double GetValue(void) const override { return param->GetValue(); }
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bool IsConstant(void) const override { return param->IsConstant(); }
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std::string GetName(void) const override {
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FGPropertyValue* v = dynamic_cast<FGPropertyValue*>(param.ptr());
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if (v)
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return v->GetNameWithSign();
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else
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return to_string(param->GetValue());
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}
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bool IsLateBound(void) const {
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FGPropertyValue* v = dynamic_cast<FGPropertyValue*>(param.ptr());
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return v != nullptr && v->IsLateBound();
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}
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private:
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FGParameter_ptr param;
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void Construct(const std::string& value, FGPropertyManager* pm) {
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if (is_number(value)) {
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param = new FGRealValue(atof(value.c_str()));
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} else {
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// "value" must be a property if execution passes to here.
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param = new FGPropertyValue(value, pm);
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}
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}
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};
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typedef SGSharedPtr<FGParameterValue> FGParameterValue_ptr;
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} // namespace JSBSim
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#endif
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