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

namespace TestForm
{
    public partial class UserControl2 : UserControl
    {
        public UserControl2()
        {
            InitializeComponent();

            // 啟用 UserControl 自身的鍵盤事件
            this.SetStyle(ControlStyles.StandardClick | ControlStyles.StandardDoubleClick | ControlStyles.UserMouse, true);
            this.SetStyle(ControlStyles.Selectable, true);
            this.TabStop = true;

            Chart ct = new Chart();
            ct.PreviewKeyDown += OnPreviewKeyDown;
            this.Controls.Add(ct);

            // 訂閱 UserControl 自身的事件
            this.KeyDown += ChildControl_KeyDown;
            this.KeyUp += ChildControl_KeyUp;
            this.PreviewKeyDown += OnPreviewKeyDown;

            // 為所有現有控件訂閱事件
            SubscribeToChildControls(this);

            // 為新添加的控件訂閱事件
            this.ControlAdded += (s, e) => SubscribeToControl(e.Control);
        }
        private void OnPreviewKeyDown(object sender, PreviewKeyDownEventArgs e)
        {
            switch (e.KeyCode)
            {
                case Keys.Up:
                case Keys.Down:
                case Keys.Left:
                case Keys.Right:
                case Keys.Space:
                    e.IsInputKey = true;
                    break;
            }
        }
        private void SubscribeToChildControls(Control parent)
        {
            foreach (Control control in parent.Controls)
            {
                SubscribeToControl(control);
                SubscribeToChildControls(control); // 遞歸訂閱子控件
            }
        }

        private void SubscribeToControl(Control control)
        {
            control.KeyDown += ChildControl_KeyDown;
            control.KeyUp += ChildControl_KeyUp;
            control.PreviewKeyDown += OnPreviewKeyDown;
        }

       
        private void ChildControl_PreviewKeyDown(object sender, PreviewKeyDownEventArgs e)
        {
            // 將空格鍵標記為輸入鍵，這樣KeyUp事件才會觸發
            if (e.KeyCode == Keys.Space)
            {
                e.IsInputKey = true;
            }
        }

        private void ChildControl_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyCode == Keys.Space)
            {
                Console.WriteLine("空格鍵按下 - 時間: " + DateTime.Now.ToString("HH:mm:ss.fff"));
                e.Handled = true; // 阻止默認處理
            }
            if (e.KeyCode == Keys.Up)
            {
                Console.WriteLine("上鍵按下 - 時間: " + DateTime.Now.ToString("HH:mm:ss.fff"));
                e.Handled = true; // 阻止默認處理
            }
            if (e.KeyCode == Keys.Down)
            {
                Console.WriteLine("下鍵按下 - 時間: " + DateTime.Now.ToString("HH:mm:ss.fff"));
                e.Handled = true; // 阻止默認處理
            }
            if (e.KeyCode == Keys.Left)
            {
                Console.WriteLine("左鍵按下 - 時間: " + DateTime.Now.ToString("HH:mm:ss.fff"));
                e.Handled = true; // 阻止默認處理
            }
            if (e.KeyCode == Keys.Right)
            {
                Console.WriteLine("右鍵按下 - 時間: " + DateTime.Now.ToString("HH:mm:ss.fff"));
                e.Handled = true; // 阻止默認處理
            }
            if (e.KeyCode == Keys.Enter)
            {
                Console.WriteLine("回車鍵按下 - 時間: " + DateTime.Now.ToString("HH:mm:ss.fff"));
                e.Handled = true; // 阻止默認處理
            }
        }

        private void ChildControl_KeyUp(object sender, KeyEventArgs e)
        {
            if (e.KeyCode == Keys.Space)
            {
                Console.WriteLine("空格鍵釋放 - 時間: " + DateTime.Now.ToString("HH:mm:ss.fff"));
                e.Handled = true; // 阻止默認處理
            }
        }
    }
}