#region Imports

using System;
using System.ComponentModel;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Windows.Forms;

#endregion

namespace DPumpHydr.WinFrmUI.RLT.Controls
{
    #region SkyCheckBox

    [DefaultEvent("CheckedChanged")]
    public class SkyCheckBox : Control
    {
        #region " Control Help - MouseState & Flicker Control"
        private Point mouse = new(0, 0);

        protected override void OnMouseMove(MouseEventArgs e)
        {
            base.OnMouseMove(e);
            mouse = e.Location;
        }
        protected override void OnTextChanged(EventArgs e)
        {
            base.OnTextChanged(e);
            Invalidate();
        }

        private bool _Checked;
        public bool Checked
        {
            get => _Checked;
            set
            {
                _Checked = value;
                CheckedChanged?.Invoke(this);
                Invalidate();
            }
        }

        protected override void OnResize(EventArgs e)
        {
            base.OnResize(e);
            Height = 14;
        }

        protected override void OnClick(EventArgs e)
        {
            if (mouse.X <= Height - 1 || mouse.Y <= Width - 1)
            {
                Checked = !Checked;
                Invalidate();
            }

            base.OnClick(e);
        }

        public event CheckedChangedEventHandler CheckedChanged;
        public delegate void CheckedChangedEventHandler(object sender);
        #endregion

        #region Variables
        private SmoothingMode _SmoothingType = SmoothingMode.HighQuality;
        #endregion

        #region Settings
        public SmoothingMode SmoothingType
        {
            get => _SmoothingType;
            set
            {
                _SmoothingType = value;
                Invalidate();
            }
        }

        public Color BoxBGColorA { get; set; } = Color.FromArgb(245, 245, 245);

        public Color BoxBGColorB { get; set; } = Color.FromArgb(231, 231, 231);

        public Color BoxBorderColorA { get; set; } = Color.FromArgb(189, 189, 189);

        public Color BoxBorderColorB { get; set; } = Color.FromArgb(252, 252, 252);

        public Color BoxBorderColorC { get; set; } = Color.FromArgb(168, 168, 168);

        public Color CheckedColor { get; set; } = Color.FromArgb(220, 27, 94, 137);
        #endregion

        public SkyCheckBox() : base()
        {
            SetStyle(ControlStyles.UserPaint | ControlStyles.SupportsTransparentBackColor, true);
            Font = new("Verdana", 6.75f, FontStyle.Bold);
            BackColor = Color.Transparent;
            ForeColor = Color.FromArgb(27, 94, 137);
            Size = new(90, 16);
            DoubleBuffered = true;
            Cursor = Cursors.Hand;
        }

        protected override void OnPaint(PaintEventArgs e)
        {
            Bitmap B = new(Width, Height);
            Graphics G = Graphics.FromImage(B);

            Rectangle checkBoxRectangle = new(0, 0, Height - 1, Height - 1);
            G.SmoothingMode = SmoothingType;

            G.Clear(Parent.FindForm().BackColor);

            LinearGradientBrush bodyGrad = new(checkBoxRectangle, BoxBGColorA, BoxBGColorB, 90);
            G.FillRectangle(bodyGrad, bodyGrad.Rectangle);
            G.DrawRectangle(new(BoxBorderColorA), new Rectangle(0, 0, Height - 1, Height - 2));
            G.DrawRectangle(new(BoxBorderColorB), new Rectangle(1, 1, Height - 3, Height - 4));
            G.DrawLine(new(BoxBorderColorC), new Point(1, Height - 1), new Point(Height - 2, Height - 1));

            if (Checked)
            {
                Rectangle chkPoly = new(checkBoxRectangle.X + (checkBoxRectangle.Width / 4), checkBoxRectangle.Y + (checkBoxRectangle.Height / 4), checkBoxRectangle.Width / 2, checkBoxRectangle.Height / 2);
                Point[] Poly =
                {
                    new(chkPoly.X, chkPoly.Y + (chkPoly.Height / 2)),
                    new(chkPoly.X + (chkPoly.Width / 2), chkPoly.Y + chkPoly.Height),
                    new(chkPoly.X + chkPoly.Width, chkPoly.Y)
                };
                G.SmoothingMode = SmoothingType;

                G.DrawString("a", new Font("Marlett", 10.75f), new SolidBrush(CheckedColor), new Rectangle(-2, -1, Width - 1, Height - 1), new StringFormat
                {
                    Alignment = StringAlignment.Near,
                    LineAlignment = StringAlignment.Near
                });
            }

            G.DrawString(Text, Font, new SolidBrush(ForeColor), new Point(16, 0), new StringFormat
            {
                Alignment = StringAlignment.Near,
                LineAlignment = StringAlignment.Near
            });

            e.Graphics.DrawImage(B, 0, 0);
            G.Dispose();
            B.Dispose();

        }
    }

    #endregion
}