using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using DevComponents.DotNetBar;

namespace POSV.Component
{
    public class TouchLabelExt : LabelX
    {
        public event EventHandler TouchClick;

        public TouchLabelExt()
        {
            this.SetStyle(ControlStyles.UserPaint , true);
            this.SetStyle(ControlStyles.AllPaintingInWmPaint , true);
            this.SetStyle(ControlStyles.Opaque , true);
            this.SetStyle(ControlStyles.ResizeRedraw , true);
            this.SetStyle(ControlStyles.StandardDoubleClick , true);
            this.SetStyle(ControlStyles.DoubleBuffer , true);
            this.SetStyle(ControlStyles.SupportsTransparentBackColor , true);
        }

        protected virtual void OnTouchClick(EventArgs e)
        {
            TouchClick?.Invoke(this , e);
        }

        protected override void WndProc(ref Message m)
        {
            switch (m.Msg)
            {
                case Win32.WM_POINTERDOWN:
                case Win32.WM_POINTERUP:
                case Win32.WM_POINTERUPDATE:
                case Win32.WM_POINTERCAPTURECHANGED:
                    break;

                default:
                    base.WndProc(ref m);
                    return;
            }

            int pointerId = Win32.GET_POINTER_ID(m.WParam);
            Win32.POINTER_INFO pi = new Win32.POINTER_INFO();
            if (!Win32.GetPointerInfo(pointerId , ref pi))
            {
                Win32.CheckLastError();
            }
            Point pt = PointToClient(pi.PtPixelLocation.ToPoint());
            MouseEventArgs me = new MouseEventArgs(System.Windows.Forms.MouseButtons.Left , 1 , pt.X , pt.Y , 0);
            switch (m.Msg)
            {
                case Win32.WM_POINTERDOWN:
                    OnMouseDown(me);
                    break;

                case Win32.WM_POINTERUP:
                    OnMouseUp(me);
                    break;

                case Win32.WM_POINTERUPDATE:
                    //Console.WriteLine("UPDATE");
                    break;
            }
        }

        private Color _backColor1 = Color.Transparent;
        public Color BackColor1
        {
            get { return this._backColor1; }
            set
            {
                this._backColor1 = value;

                this.BackColor = this._backColor1;
            }
        }

        private Color _backColor2 = Color.Tan;
        public Color BackColor2
        {
            get { return this._backColor2; }
            set
            {
                this._backColor2 = value;
            }
        }

        protected override void OnMouseDown(MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                this.BackColor = this._backColor2;
            }
        }


        protected override void OnMouseUp(MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                this.BackColor = this._backColor1;

                this.OnTouchClick(e);
            }

        }
    }
}