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 <string>
#include <iomanip>

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