// Program: demo2.cpp
// Demo program for libwindow.

#include <iostream>
#include <IFM/window>

int main()
{
    // define a 300 x 300 pixel window  
    ifm::Wstream w(300, 300, "LibWindow-Example");

    // read in a circle
    std::cout << "Enter a circle." << std::endl;
    ifm::Circle c;
    w >> c;
    
    // print c and its bounding square
    w << ifm::yellow << c << ifm::red
      << ifm::Rectangle(c.x() - c.r(), c.y() - c.r(),
                        c.x() + c.r(), c.y() + c.r())
      << ifm::flush;

    // tracks mouse pointer
    std::cout << "Scribbling, click to end." << std::endl;
    ifm::Point p_last(c.x(), c.y());
    do {
        int x, y;
        w.get_mouse(x, y);
        w << ifm::blue << ifm::Line(p_last.x(), p_last.y(), x, y) 
          << ifm::flush;
        p_last = ifm::Point(x, y);
    } while (!w.check_mouse_click());
    
    return 0;
}