typedef struct Elm_Gen_Item             Elm_Gen_Item;

/**
 * @struct Elm_Gen_Item_Class
 *
 * Gengrid or Genlist item class definition.
 * field details.
 */
typedef struct _Elm_Gen_Item_Class      Elm_Gen_Item_Class;

/**
 * Text fetching class function for Elm_Gen_Item_Class.
 * @param data The data passed in the item creation function
 * @param obj The base widget object
 * @param part The part name of the swallow
 * @return The allocated (NOT stringshared) string to set as the text
 */
typedef char                         *(*Elm_Gen_Item_Text_Get_Cb)(void *data, Evas_Object *obj, const char *part); /**< Label fetching class function for gen item classes. */

/**
 * Content (swallowed object) fetching class function for Elm_Gen_Item_Class.
 * @param data The data passed in the item creation function
 * @param obj The base widget object
 * @param part The part name of the swallow
 * @return The content object to swallow
 */
typedef Evas_Object                  *(*Elm_Gen_Item_Content_Get_Cb)(void *data, Evas_Object *obj, const char *part); /**< Content(swallowed object) fetching class function for gen item classes. */

/**
 * State fetching class function for Elm_Gen_Item_Class.
 * @param data The data passed in the item creation function
 * @param obj The base widget object
 * @param part The part name of the swallow
 * @return The hell if I know
 */
typedef Eina_Bool                     (*Elm_Gen_Item_State_Get_Cb)(void *data, Evas_Object *obj, const char *part); /**< State fetching class function for gen item classes. */

/**
 * Deletion class function for Elm_Gen_Item_Class.
 * @param data The data passed in the item creation function
 * @param obj The base widget object
 */
typedef void                          (*Elm_Gen_Item_Del_Cb)(void *data, Evas_Object *obj); /**< Deletion class function for gen item classes. */

struct _Elm_Gen_Item_Class
{
   int           version;  /**< Set by elementary if you alloc an item class using elm_genlist/gengrid_item_class_new(), or if you set your own class (must be const) then set it to ELM_GENLIST/GENGRID_ITEM_CLASS_VERSION */
   unsigned int  refcount; /**< Set it to 0 if you use your own const class, or its managed for you by class ref/unref calls */
   Eina_Bool     delete_me : 1; /**< Leave this alone - set it to 0 if you have a const class of your own */
   const char   *item_style; /**< Name of the visual style to use for this item. If you don't know use "default" */
   const char   *decorate_item_style; /**< Style used if item is set to a decorate mode. @see elm_genlist_item_decorate_mode_set() or NULL if you don't care. currently it's used only in genlist. */
   const char   *decorate_all_item_style; /**< Style to use when in edit mode, or NULL if you don't care. currently it's used only in genlist. */
   struct
     {
        Elm_Gen_Item_Text_Get_Cb    text_get; /**< Text fetching class function for genlist/gengrid item classes.*/
        Elm_Gen_Item_Content_Get_Cb content_get; /**< Content fetching class function for genlist/gengrid item classes. */
        Elm_Gen_Item_State_Get_Cb   state_get; /**< State fetching class function for genlist/gengrid item classes. */
        Elm_Gen_Item_Del_Cb         del; /**< Deletion class function for genlist/gengrid item classes. */
     } func;
}; /**< #Elm_Gen_Item_Class member definitions */

#define ELM_GEN_ITEM_CLASS_VERSION 2
#define ELM_GEN_ITEM_CLASS_HEADER ELM_GEN_ITEM_CLASS_VERSION, 0, 0