FWItemRandomAccessor< C, V > Class Template Reference

#include <FWItemRandomAccessor.h>

Inheritance diagram for FWItemRandomAccessor< C, V >:

List of all members.

Public Member Functions
	FWItemRandomAccessor (const TClass *iClass)
const void *	modelData (int iIndex) const
	REGISTER_FWITEMACCESSOR_METHODS ()
unsigned int	size () const
Private Types
typedef C	container_type
typedef V	container_value_type

---

Detailed Description

template<class C, class V = typename C::value_type>
class FWItemRandomAccessor< C, V >

A generic helper class which can be used to create a specialized FWItemAccessorBase plugin for all the classes that expose a std::vector like interface.

The template argument T is the actual type of the container you want to have an accessor for and it must satisty the following:

• It must have a random access operator (i.e. operator[]()).
• It must have a size() method which returns the amount of objects contained in the collection.
• It must contain a value_type typedef which indicates the type of the contained objects. If this is not the case, you must specify the extra template argument V.

Notice that most of the work is actually done by the baseclass.

Definition at line 74 of file FWItemRandomAccessor.h.

---

Member Typedef Documentation

template<class C , class V = typename C::value_type>

typedef C FWItemRandomAccessor< C, V >::container_type [private]

Definition at line 76 of file FWItemRandomAccessor.h.

template<class C , class V = typename C::value_type>

typedef V FWItemRandomAccessor< C, V >::container_value_type [private]

Definition at line 77 of file FWItemRandomAccessor.h.

---

Constructor & Destructor Documentation

template<class C , class V = typename C::value_type>

FWItemRandomAccessor< C, V >::FWItemRandomAccessor

(

const TClass *

iClass

)

[inline]

Definition at line 79 of file FWItemRandomAccessor.h.

      : FWItemRandomAccessorBase(iClass, typeid(container_value_type))
      {}

---

Member Function Documentation

template<class C , class V = typename C::value_type>

const void* FWItemRandomAccessor< C, V >::modelData

(

int

iIndex

)

const [inline, virtual]

Implements FWItemAccessorBase.

Definition at line 86 of file FWItemRandomAccessor.h.

References FWItemRandomAccessorBase::getDataPtr().

      {
         if (!getDataPtr())
            return 0;
         return &(reinterpret_cast<container_type *>(getDataPtr())->operator[](iIndex));
      }

template<class C , class V = typename C::value_type>

FWItemRandomAccessor< C, V >::REGISTER_FWITEMACCESSOR_METHODS

(

)

template<class C , class V = typename C::value_type>

unsigned int FWItemRandomAccessor< C, V >::size

(

void

)

const [inline, virtual]

Implements FWItemAccessorBase.

Definition at line 93 of file FWItemRandomAccessor.h.

References FWItemRandomAccessorBase::getDataPtr().

      {
         if (!getDataPtr())
            return 0;
         return reinterpret_cast<const container_type*>(getDataPtr())->size();
      }