UIElement.h

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#ifndef UIELEMENT_H_
#define UIELEMENT_H_
 
#include "UIElementType.h"
#include "TouchTypes.h"
#include "Keys.h"
#include <stdint.h>
#include <Adafruit_GFX.h>
 
#include "Fonts/FreeSans12pt7b.h"
 
// https://forum.arduino.cc/t/solved-rgb-in-rgb565-umwandeln-und-mit-0x-in-eine-variable-schreiben/1146991/2
#define RGB565(r, g, b) ((((r)& 0xF8) << 8) | (((g) & 0xFC) << 3) | (((b) & 0xF8) >> 3))        

class UIElement
{
    protected:
        bool _lastDrawnVisible;        
        
    public:
        UIElementType Type;            
        uint16_t LocX;              
        uint16_t LocY;              
        uint16_t Width;                
        uint16_t Height;          
        bool Visible;                
        bool IsInEditMode;          
        UIElement* Parent;           
        UIElement* ActiveChild;     

        UIElement(UIElementType type)
        {
            Visible = true;
            IsInEditMode = false;
            Type = type;
            ActiveChild = NULL;
        }
    
        UIElement(uint16_t locX, uint16_t locY, UIElementType type)
        {
            LocX = locX;
            LocY = locY;
            Visible = true;
            IsInEditMode = false;
            Type = type;
            ActiveChild = NULL;
        }

        virtual void Draw(bool redraw) = 0;
        
        virtual bool KeyInput(Keys_t key) { return false; }

        virtual bool TouchInput(uint16_t x, uint16_t y, TouchTypes touchType) { return false; }

        virtual void RecalculateDimensions() = 0;

        virtual void RecalculateLayout() { }

        bool HitTest(uint16_t x, uint16_t y)
        {
            return (x >= LocX) && (x <= (LocX + Width)) && (y >= LocY) && (y <= (LocY + Height)) && Visible;
        }
};
 
#endif /* UIELEMENT_H_ */