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

namespace OTSPeriodicTable
{
    public partial class User_Element_Small : UserControl
    {
        #region 变量
        public int i_click = 0;    //点击记数
        Color old_color;    //记录被点击前的颜色
        string str_zwysm = "中文元素名";

        //中文元素名
        public string zwysm
        {
            get { return str_zwysm; }
            set { str_zwysm = value; }
        }
        #endregion

        public User_Element_Small()
        {
            InitializeComponent();
        }

        private void User_Element_Small_Load(object sender, EventArgs e)
        {
            //old_color = this.BackColor;
            //old_color = Color.FromKnownColor(KnownColor.Control);//还是
            old_color = Color.Gainsboro;//系统色
        }

        private void User_Element_Small_MouseMove(object sender, MouseEventArgs e)
        {
            Graphics g = this.CreateGraphics();
            ControlPaint.DrawBorder(g,
                                this.ClientRectangle,
                                Color.WhiteSmoke,
                                1,
                                ButtonBorderStyle.Solid,
                                Color.WhiteSmoke,
                                1,
                                ButtonBorderStyle.Solid,
                                Color.WhiteSmoke,
                                1,
                                ButtonBorderStyle.Solid,
                                Color.WhiteSmoke,
                                1,
                                ButtonBorderStyle.Solid);
        }

        private void User_Element_Small_Leave(object sender, EventArgs e)
        {
            Graphics g = this.CreateGraphics();
            ControlPaint.DrawBorder(g,
                                this.ClientRectangle,
                                old_color,
                                1,
                                ButtonBorderStyle.Solid,
                                old_color,
                                1,
                                ButtonBorderStyle.Solid,
                                old_color,
                                1,
                                ButtonBorderStyle.Solid,
                                old_color,
                                1,
                                ButtonBorderStyle.Solid);
        }

        private void User_Element_Small_MouseClick(object sender, MouseEventArgs e)
        {
            if (i_click == 0)
            {
                //    lb_zwysm.Text = str_zwysm;//点击到其它颜色时显示中文名
                //    old_color = this.BackColor;
                //    i_click = 1;
                //    this.BackColor = Color.SpringGreen;
                //    return;
                //}
                //if (i_click == 1)
                //{
                //lb_zwysm.Text = str_zwysm;//点击到其它颜色时显示中文名,深灰色
                i_click = 2;
                //this.BackColor = Color.DimGray;
                this.BackColor = Color.SpringGreen;
                return;
            }
            if (i_click == 2)
            {
                //换回原先的颜色
                //lb_zwysm.Text = ""; //恢复到原先的颜色时，不显示中文名
                i_click = 0;
                this.BackColor = old_color;
                return;
            }
        }
    }
}