// %flair:license{
// This file is part of the Flair framework distributed under the
// CECILL-C License, Version 1.0.
// %flair:license}
/*!
 * \file Layout.h
 * \brief Abstract class to display a layout on the ground station
 * \author Guillaume Sanahuja, Copyright Heudiasyc UMR UTC/CNRS 7253
 * \date 2011/10/07
 * \version 4.0
 */

#ifndef LAYOUT_H
#define LAYOUT_H

#include <Widget.h>
#include <Mutex.h>

namespace flair
{
namespace gui
{
    class LayoutPosition;

    /*! \class Layout
    *
    * \brief Abstract class to display a layout on the ground station
    *
    * This is an abstract class to display layouts (like GridLayout, GroupBox, etc). \n
    * A layout can contains Widgets (Box, DataPlot, Picture, etc). \n
    * Layout holds a Mutex, which can be used to protect access to Box's value for example.
    */
    class Layout: public Widget
    {
        friend class Box;

        public:
            /*!
            * \brief Constructor
            *
            * Construct a Layout. Type is a predifined one, and will be
            * interpreted by the ground station.
            *
            * \param parent parent
            * \param name name
            * \param type type of layout
            */
            Layout(const Widget* parent,std::string name,std::string type);

            /*!
            * \brief Destructor
            *
            */
            ~Layout();

            /*!
            * \brief Last Row and Col LayoutPosition
            *
            * Get a LayoutPosition at the last row and col.
            *
            * \return the LayoutPosition
            */
            LayoutPosition* LastRowLastCol(void) const;

            /*!
            * \brief New Row LayoutPosition
            *
            * Get a LayoutPosition at a new row and first col. This new row will be at the last position.
            *
            * \return the LayoutPosition
            */
            LayoutPosition*  NewRow(void) const;

            /*!
            * \brief LayoutPosition at specified position
            *
            * Get a LayoutPosition at specified row and col.
            *
            * \param row row
            * \param col col
            *
            * \return the LayoutPosition
            */
            LayoutPosition*  At(uint16_t row,uint16_t col) const;

        private:
            /*!
            * \brief Mutex
            *
            * This Mutex can be used by friends class like Box to protect access
            * to Box's value.
            */
            core::Mutex* mutex;
    };

} // end namespace gui
} // end namespace flair

#endif // LAYOUT_H