Coding the component interfaces

Each component will implement an interface so that although they behave differently, they can be used the same way as one another because of polymorphism.

GraphicsComponent

Add the GraphicsComponent interface:

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.PointF;
interface GraphicsComponent {
    void initialize(Context c, 
                    ObjectSpec s, 
                    PointF screensize);
    
    void draw(Canvas canvas, 
              Paint paint, 
              Transform...