using System;
using System.Drawing;
using System.Windows.Forms;

namespace App
{
	class Window : Form
	{
		private Point mousePos;

		public Window()
		{
			InitializeComponent(new Rectangle(0, 0, 200, 200));
		}


		public Window(Rectangle bounds)
		{

			InitializeComponent(bounds);
		}

		public Window(Screen scr)
		{
			InitializeComponent(scr.Bounds);
		}

		private void InitializeComponent(Rectangle bounds)
		{
			Bounds = bounds;

			// Set some good values for a Sreensaver window.
			BackColor = Color.White;
			FormBorderStyle = FormBorderStyle.None;
			StartPosition = FormStartPosition.Manual;
			Cursor.Hide();

			ShowInTaskbar = false;
			TopMost = true;

			DoubleBuffered = true;

			// Register events
			MouseMove += OnMouseMove;
			KeyPress += OnKeyPressed;

			Show();
		}

		private void OnMouseMove(object? sender, MouseEventArgs e)
		{
			if (!mousePos.IsEmpty &&
				(Math.Abs(e.Location.X - mousePos.X) > 1 ||
				Math.Abs(e.Location.Y - mousePos.Y) > 1)) {

				Application.Exit();
			}

			mousePos = e.Location;
		}

		private void OnKeyPressed(object? sender, KeyPressEventArgs e)
		{
			Application.Exit();
		}
	}
}