Menu.h

/*
    This item contains other items.
*/

#include "MenuItem.h"

#include "NumericSelector.h"
#include "Action.h"
#include "CheckBox.h"

#ifndef Menu_h
#define Menu_h

struct ListEntry {
    ListEntry(MenuItem* i) : item(i) {
        next = NULL; prev = NULL;
    }

    ListEntry* next;
    ListEntry* prev;

    MenuItem* item; 
};

class Menu : public MenuItem {
    public:
        typedef void(*MenuEnterCallback)(Menu*);

        Menu(MenuItem* parent, const FlashString* text, MenuEnterCallback enter_cb = NULL);

        char getTypeId() { return 'm'; }

        
        MenuItem* addItem(MenuItem* item);
        void clearItems();

        ListEntry* getCollection() { return firstEntry; }
        MenuItem*  getSelectedItem() { return selectedItem->item; }

        ListEntry* getSelectedListEntry() { return selectedItem; }

        // MenuItem fields

        bool activate();
        void deactivate() {}

        // Selects the next item in the list
        void doNext();
        // Selects the prev item in the list
        void doPrev();

        MenuItem* action();
        
    private:
        ListEntry *firstEntry, *lastEntry, *selectedItem;

        MenuEnterCallback enter_cb;

};

#endif