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

namespace Audentia.Common.Controls
{
    [DefaultEvent("Click")]
    public sealed class Button : PictureBox
    {
        public bool Hovered { get; set; }

        private Timer _t;

        public Button()
        {
            SizeMode = PictureBoxSizeMode.AutoSize;
            Click += mouseclicked;
            _t = new Timer {Interval = 1};
            _t.Tick += _t_Tick;
        }

        //ToDo: Vorheriges Control speichern und abfragen
        private void _t_Tick(object sender, EventArgs e)
        {
            foreach (Control c in Parent.Controls)
            {
                if(c is Button)
                {
                    if(c.Name!=Name)
                        (c as Button).clicked = false;
                }
            }
            _t.Stop();
        }

        private void mouseclicked(object sender, EventArgs e)
        {
            _t.Start();
            clicked = true;
        }


        protected override void OnMouseHover(System.EventArgs e)
        {
            Cursor = Cursors.Hand;
            
            Hovered = true;
            
            Invalidate();
            base.OnMouseHover(e);
        }

        protected override void OnMouseLeave(System.EventArgs e)
        {
            if(!clicked)
                Hovered = false;
            Invalidate();
            base.OnMouseLeave(e);
        }

        private bool clicked;
        protected override void OnPaint(PaintEventArgs pe)
        {
            if (Image != null)
            {
                pe.Graphics.DrawImage(Hovered ? Lighten(new Bitmap(Image)) : Image, 0, 0, Image.Width, Image.Height);
               
            }
            else
            {
                pe.Graphics.DrawImage(ErrorImage, 0, 0, Image.Width, Image.Height);
            }
        }

        private Bitmap Lighten(Bitmap bitmap)
        {

            for (int i = 0; i < bitmap.Width; i++)
            {
                for (int j = 0; j < bitmap.Height; j++)
                {
                    var p = bitmap.GetPixel(i, j);
                    var pp = Color.FromArgb(150, p);
                    if (p.A > 0)
                        bitmap.SetPixel(i, j, pp);
                }
            }
            return bitmap;
        }

    }
}