Container.h

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#ifndef CONTAINER_H_
#define CONTAINER_H_
 
#include "../Core/UIElement.h"
 
#define DEFAULT_MAX_CONTAINER_ITEMS     20      

class Container : public UIElement
{
    protected:
        uint8_t _maxNumItems;                       
        UIElement** _items;                          
        uint8_t _numItems;                         
        uint8_t _selectedItemIndex;                   
 
    public:
        Container(uint8_t maxNumItems = DEFAULT_MAX_CONTAINER_ITEMS);

        ~Container()
        {
            delete _items;
            _items = NULL;
        }

        virtual void Draw() { }  //= 0;
            
        virtual bool KeyInput(Keys_t key) { return false; }  // = 0;
        
        UIElement* GetSelectedItem();
        
        bool AddItem(UIElement* item);

        void ClearAllItems();

        bool NextItem();
        
        bool PreviousItem();
        
        bool NextControlItem();
        
        bool PreviousControlItem();

        void GetItemsBoundingBox(uint16_t* x, uint16_t* y, uint16_t* w, uint16_t* h);
};
 
#endif /* CONTAINER_H_ */