//-----------------------------------------------------------------------------
//
//	ValueDecimal.h
//
//	Represents a value that may have a fractional component
//
//	Copyright (c) 2010 Mal Lansell <openzwave@lansell.org>
//
//	SOFTWARE NOTICE AND LICENSE
//
//	This file is part of OpenZWave.
//
//	OpenZWave is free software: you can redistribute it and/or modify
//	it under the terms of the GNU Lesser General Public License as published
//	by the Free Software Foundation, either version 3 of the License,
//	or (at your option) any later version.
//
//	OpenZWave is distributed in the hope that it will be useful,
//	but WITHOUT ANY WARRANTY; without even the implied warranty of
//	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//	GNU Lesser General Public License for more details.
//
//	You should have received a copy of the GNU Lesser General Public License
//	along with OpenZWave.  If not, see <http://www.gnu.org/licenses/>.
//
//-----------------------------------------------------------------------------

#ifndef _ValueDecimal_H
#define _ValueDecimal_H

#include <string>
#include "Defs.h"
#include "value_classes/Value.h"

class TiXmlElement;

namespace OpenZWave
{
	namespace Internal
	{
		namespace VC
		{

			/** \brief Decimal value sent to/received from a node.
			 * \ingroup ValueID
			 */
			class ValueDecimal: public Value
			{

				public:
					ValueDecimal(uint32 const _homeId, uint8 const _nodeId, ValueID::ValueGenre const _genre, uint8 const _commandClassId, uint8 const _instance, uint16 const _index, string const& _label, string const& _units, bool const _readOnly, bool const _writeOnly, string const& _value, uint8 const _pollIntensity);
					ValueDecimal() :
							m_precision(0)
					{
					}
					virtual ~ValueDecimal()
					{
					}

					bool Set(string const& _value);
					void OnValueRefreshed(string const& _value);

					// From Value
					virtual string const GetAsString() const
					{
						return GetValue();
					}
					virtual bool SetFromString(string const& _value)
					{
						return Set(_value);
					}
					virtual void ReadXML(uint32 const _homeId, uint8 const _nodeId, uint8 const _commandClassId, TiXmlElement const* _valueElement);
					virtual void WriteXML(TiXmlElement* _valueElement);

					string GetValue() const
					{
						return m_value;
					}
					uint8 GetPrecision() const
					{
						return m_precision;
					}
					void SetPrecision(uint8 _precision)
					{
						m_precision = _precision;
					}

				private:

					string m_value;				// the current value
					string m_valueCheck;			// the previous value (used for double-checking spurious value reads)
					string m_newValue;				// a new value to be set on the appropriate device
					uint8 m_precision;
			};
		} // namespace VC
	} // namespace Internal
} // namespace OpenZWave

#endif