// %flair:license{
// This file is part of the Flair framework distributed under the
// CECILL-C License, Version 1.0.
// %flair:license}
/*!
 * \file SendData.h
 * \brief Abstract class for sending datas to ground station
 * \author Guillaume Sanahuja, Copyright Heudiasyc UMR UTC/CNRS 7253
 * \date 2012/03/07
 * \version 4.0
 */

#ifndef SENDDATA_H
#define SENDDATA_H

#include <Widget.h>

class SendData_impl;

namespace flair
{
namespace gui
{
    class LayoutPosition;

    /*! \class SendData
    *
    * \brief Abstract class for sending datas to ground station
    *
    */
    class SendData: public Widget
    {
        public:
            /*!
            * \brief Constructor
            *
            */
            SendData(const LayoutPosition* position,std::string name,std::string type,uint16_t default_periodms=100,bool default_enabled=false);

            /*!
            * \brief Destructor
            *
            */
            virtual ~SendData();

            /*!
            * \brief Copy datas to specified buffer
            *
            * This method must be reimplemented, in order to send datas to ground station.
            *
            * \param buf output buffer
            */
            virtual void CopyDatas(char* buf) const =0;

            size_t SendSize(void) const;
            uint16_t SendPeriod(void) const; // in ms
            bool IsEnabled(void) const;

        protected:

            /*!
            * \brief Notify that SenData's datas have changed
            *
            * This method must be called when the datas have changed. \n
            * Normally, it occurs when a curve is added to a plot for example. \n
            * This method automatically blocks and unblocks the communication.
            *
            */
            void SetSendSize(size_t value);

            /*!
            * \brief Extra Xml event
            *
            * This method must be reimplemented to handle extra xml event. \n
            * It is automatically called when something changed from
            * ground station, through XmlEvent method. \n
            */
            virtual void ExtraXmlEvent(void)=0;

        private:
            /*!
            * \brief XmlEvent from ground station
            *
            * Reimplemented from Widget. \n
            * This method handles period and enabled properties of the SendData. \n
            * Then it calls ExtraXmlEvent to handle specific xml events of reimplemented class.
            *
            */
            void XmlEvent(void);

            void SetSendPeriod(uint16_t value);
            void SetEnabled(bool value);

            class SendData_impl* pimpl_;
    };

} // end namespace core
} // end namespace flair

#endif // SENDDATA_H