using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace Lskj.Control
{
    public partial class LabelGroupBox : GroupBox
    {

        //边框和标题颜色
        private Color GroupBoxColor = Color.Black;

        [Browsable(true), Description("边框颜色"), Category("自定义分组")]
        public Color BorderColor
        {
            get { return GroupBoxColor; }
            set { GroupBoxColor = value; }
        }

        //标题位置
        //left = 1,
        //Center = 2,
        //right = 3,
        private int Position = 1;

        public int TitlePosition
        {
            get { return Position; }
            set { Position = value; }
        }


        public LabelGroupBox()
        {
            InitializeComponent();
        }

        public LabelGroupBox(IContainer container)
        {
            container.Add(this);

            InitializeComponent();
        }

        // 重写 把控件重新绘制
        protected override void OnPaint(PaintEventArgs e)
        {

            var vSize = e.Graphics.MeasureString(this.Text, this.Font);
            //e.Graphics.Clear(this.BackColor);//这条代码会把给它的颜色设成默认和透明状态的背景样式
            Pen vPen = new Pen(this.GroupBoxColor); // 用属性颜色来画边框颜色
            
            string groupBoxColorHtml= ColorTranslator.ToHtml(System.Drawing.Color.FromArgb(this.GroupBoxColor.R, this.GroupBoxColor.G, this.GroupBoxColor.B));
            string BlackBoxColorHtml = ColorTranslator.ToHtml(System.Drawing.Color.FromArgb(Color.Black.R, Color.Black.G, Color.Black.B));
            if (groupBoxColorHtml == BlackBoxColorHtml) 
            {
                vPen = new Pen(Color.FromArgb(220,220,220));
            }

            if (Position == 2)
            {
                e.Graphics.DrawString(this.Text, this.Font, new SolidBrush(this.GroupBoxColor), (this.Width - vSize.Width) / 2, 1);//标题
                e.Graphics.DrawLine(vPen, 1, vSize.Height / 2, (this.Width - vSize.Width) / 2, vSize.Height / 2);//上左
                e.Graphics.DrawLine(vPen, (this.Width - vSize.Width) / 2 + vSize.Width, vSize.Height / 2, this.Width - 2, vSize.Height / 2);//上右
                e.Graphics.DrawLine(vPen, 1, vSize.Height / 2, 1, this.Height - 2);//左
                e.Graphics.DrawLine(vPen, 1, this.Height - 2, this.Width - 2, this.Height - 2);//下
                e.Graphics.DrawLine(vPen, this.Width - 2, vSize.Height / 2, this.Width - 2, this.Height - 2);//右
            }
            else if (Position == 3)
            {
                e.Graphics.DrawString(this.Text, this.Font, new SolidBrush(this.GroupBoxColor), this.Width - vSize.Width - 2, 1);//标题
                e.Graphics.DrawLine(vPen, 1, vSize.Height / 2, this.Width - vSize.Width - 2, vSize.Height / 2);//上左
                e.Graphics.DrawLine(vPen, this.Width - 4, vSize.Height / 2, this.Width - 2, vSize.Height / 2);//上右
                e.Graphics.DrawLine(vPen, 1, vSize.Height / 2, 1, this.Height - 2);//左
                e.Graphics.DrawLine(vPen, 1, this.Height - 2, this.Width - 2, this.Height - 2);//下
                e.Graphics.DrawLine(vPen, this.Width - 2, vSize.Height / 2, this.Width - 2, this.Height - 2);//右
            }
            else
            {
                e.Graphics.DrawString(this.Text, this.Font, new SolidBrush(this.GroupBoxColor), 10, 1);//标题
                e.Graphics.DrawLine(vPen, 1, vSize.Height / 2, 8, vSize.Height / 2);//上左
                e.Graphics.DrawLine(vPen, vSize.Width + 8, vSize.Height / 2, this.Width - 2, vSize.Height / 2);//上右
                e.Graphics.DrawLine(vPen, 1, vSize.Height / 2, 1, this.Height - 2);//左
                e.Graphics.DrawLine(vPen, 1, this.Height - 2, this.Width - 2, this.Height - 2);//下
                e.Graphics.DrawLine(vPen, this.Width - 2, vSize.Height / 2, this.Width - 2, this.Height - 2);//右
            }
        }


    }
}