using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace AppLauncher.Windows.Forms
{
    public class TilePanelContainer : AUserControl
    {
        protected readonly int tileSize = 70;
        protected readonly int margin = 3;

        public TilePanelContainer() : base()
        {

        }

        protected override void OnLoad(EventArgs e)
        {
            base.OnLoad(e);

            OnResize(e);
        }


        protected override void OnResize(EventArgs e)
        {
            base.OnResize(e);

            int tileWidth = (tileSize + margin);
            int w = (int)Math.Floor(decimal.Divide(this.Width, tileWidth));
            int h = (int)Math.Floor(decimal.Divide(this.Height, tileWidth));

            this.GridSize = new Point(w, h);
        }

        public Point GridSize { get; protected set; }

        public Point GetTileCoord(Point location) => this.GetTileCoord(location.X, location.Y);

        public Point GetTileCoord(int posX, int posY)
        {
            int w = (tileSize + margin);
            int x = (int)Math.Round(decimal.Divide(posX, w));
            int y = (int)Math.Round(decimal.Divide(posY, w));

            if (x < 0) x = 0;
            if (y < 0) y = 0;

            return new Point(x, y);
        }

        public Point GetTilePosition(Point location) => this.GetTilePosition(location.X, location.Y);

        public Point GetTilePosition(int posX, int posY)
        {
            int w = (tileSize + margin);
            int x = (int)Math.Round(decimal.Divide(posX, w));
            int y = (int)Math.Round(decimal.Divide(posY, w));

            if (x < 0) x = 0;
            if (y < 0) y = 0;

            return new Point((x * w), (y * w));
        }

    }
}