//Bartosz Pokorski
//281814

#include <graph.h>
#include <GUI.h>
using namespace Graph_lib;

void cb_close (Address addr1, Address pWnd);
class Spinner;
struct myButton : Button
{
    Spinner* pSpinner;
    myButton(Point xy, int w, int h, const string& label, Callback cb, Spinner* pSpin) : Button(xy, w,h, label, cb),
    pSpinner(pSpin)
    {}


    void attach(Graph_lib::Window& wnd)
    {
        Button::attach(wnd);
        pw -> callback(reinterpret_cast<Fl_Callback*>(do_it),pSpinner);

    }
    Address getWigdetAddress() const { return pw; }
};

class Spinner
{
private:


    myButton btn_up;
    myButton btn_down;
    Graph_lib::Out_box radiusBox;
    Circle Circ;
    static const int step_size = 5;
    int radius;

    Circle *pCirc = nullptr;
    Graph_lib::Window *pWnd = nullptr;



    static void cb_up (Address pWidget, Address pSpin)
    {
       ((Spinner*)pSpin)->changeRadius(step_size);
    }

    static void cb_down (Address pWidget, Address pSpin)
    {
        ((Spinner*)pSpin)->changeRadius(-step_size);
    }
    void changeRadius(int Step)
    {
        radius += Step;
        radiusBox.put(radius);
        pWnd->detach(*pCirc);
        delete pCirc;
        pCirc = new Circle(Point(200,200), radius);
        pWnd->attach(*pCirc);
        pWnd->redraw();
    }
public:
    Spinner(Point loc, int startVal)
        : btn_up(loc, 20, 20, "/\\", Spinner::cb_up, this),
        btn_down(Point(loc.x + 60, loc.y), 20, 20, "\\/", Spinner::cb_down, this),
        radiusBox(Point(loc.x + 25, loc.y), 30, 20, ""),

        radius(startVal)
        {
            pCirc = new Circle(Point(200,200), radius);
        }

        ~Spinner()
        {
            delete pCirc;
        }


    void attachTo(Graph_lib::Window& wnd)
    {
        wnd.attach(btn_up);
        wnd.attach(btn_down);
        wnd.attach(radiusBox);
        radiusBox.put(radius);
        wnd.attach(*pCirc);
        pWnd = &wnd;
    }

};

main()
{
    Graph_lib::Window wnd(Point(100, 100), 600, 400,"Bartosz Pokorski (281814)");
    Button btn_close(Point(0,wnd.y_max()-20), 80, 20, "Close", cb_close);
    Spinner spin(Point(wnd.x_max() - 90, 10), 100);
    spin.attachTo(wnd);
    Graph_lib::gui_main();
    return 0;
}

void cb_close (Address addr1, Address addr2)
{
    cout << "addr1: "<< addr1 << endl;
    cout << "addr2: " <<addr2 << endl;
    cout << "close pressed\n";
    //btn_close.move(100, -100);
    ((Graph_lib::Window  *)addr2) -> hide();
}