gls_menu_data_group.h

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#if !defined( GLS_MENUDATAGROUP_H )
#    define GLS_MENUDATAGROUP_H

#    ifdef WIN32
#        pragma warning( disable : 4786 )
#    endif

#    include <iomanip>
#    include <string>

#    include "gls_menu_action.h"
#    include "gls_menu_data.h"
#    include "gls_menu_dictionary.h"

//============================================================================
//============================================================================
class GlsMenuDataGroup : public GlsMenuData
{
public:
    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    virtual ~GlsMenuDataGroup();

    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    const GlsMenuDictionary& Attributes() const { return _attr; }

    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    virtual std::istream& ReadValue( std::istream& instr );

    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    virtual std::ostream& WriteValue( std::ostream& outstr );

protected:
    GlsMenuDictionary _attr;

    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    GlsMenuDataGroup( const std::string& name );

}; // end GlsMenuDataGroup

//============================================================================
//============================================================================
class GlsMenuDynDataGroup : public GlsMenuDataGroup
{
public:
    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    GlsMenuDynDataGroup( const std::string& name, bool uniqueKeys = true );

    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    virtual ~GlsMenuDynDataGroup();

    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    virtual std::istream& ReadValue( std::istream& instr );

protected:
    bool _uniqueKeys;

    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    virtual GlsMenuData* CreateDataItem( const std::string& name ) const = 0;

}; // end GlsMenuDynDataGroup

//============================================================================
//============================================================================
template<class T>
class GlsMenuDataGroup_T : public GlsMenuDynDataGroup
{
public:
    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    GlsMenuDataGroup_T( const std::string& name,
        GlsMenuDictionary&                 dataDict,
        bool                               uniqueKeys = true )
        : GlsMenuDynDataGroup( name, uniqueKeys )
        , _dataDict( dataDict )
    {
    }

    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    virtual ~GlsMenuDataGroup_T() {}

    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    T* Item( const std::string& name ) const
    {
        return dynamic_cast<T*>( _attr.Get( disti::AttributeName( name ) ) );
    }

protected:
    GlsMenuDictionary& _dataDict;

    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    virtual GlsMenuData* CreateDataItem( const std::string& name ) const
    {
        return static_cast<GlsMenuData*>( new T( name, _dataDict ) );
    }

}; // end GlsMenuDataGroup_T

//============================================================================
//============================================================================
template<class T>
class GlsMenuHandlerGroup_T : public GlsMenuDynDataGroup
{
public:
    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    GlsMenuHandlerGroup_T( const std::string& name,
        GlsMenuDictionary&                    dataDict,
        GlsMenuAction::HandlerCont_t&         actionHandlers,
        bool                                  uniqueKeys = true )
        : GlsMenuDynDataGroup( name, uniqueKeys )
        , _dataDict( dataDict )
        , _handlers( actionHandlers )
    {
    }

    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    virtual ~GlsMenuHandlerGroup_T() {}

    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    T* Item( const std::string& name ) const
    {
        return dynamic_cast<T*>( _attr.Get( disti::AttributeName( name ) ) );
    }

protected:
    GlsMenuDictionary& _dataDict;

    // Action/Handler pairs passed in from the creator to pass to items
    // created in the group.
    GlsMenuAction::HandlerCont_t& _handlers;

    //------------------------------------------------------------------------
    //------------------------------------------------------------------------
    virtual GlsMenuData* CreateDataItem( const std::string& name ) const
    {
        return static_cast<GlsMenuData*>( new T( name, _dataDict, _handlers ) );
    }

}; // end GlsMenuHandlerGroup_T

#endif