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 KUN.CONTROL.LIB.KTabControl

{

    public partial class KDelTabControl : TabControl

    {

        const int CLOSE_SIZE = 15;

        //tabPage标签图片

        Bitmap image = Properties.Resources.close;

        public KDelTabControl()

        {

            InitializeComponent();

            this.DrawMode = TabDrawMode.OwnerDrawFixed;

            //this.Padding = new System.Drawing.Point(CLOSE_SIZE, CLOSE_SIZE);

            this.DrawItem += new DrawItemEventHandler(this.KDelTabControl_DrawItem);

            this.MouseDown += new System.Windows.Forms.MouseEventHandler(this.KDelTabControl_MouseDown);

        }

        //绘制“Ｘ”号即关闭按钮

        private void KDelTabControl_DrawItem(object sender, DrawItemEventArgs e)

        {

            try

            {

                Rectangle tab = this.GetTabRect(e.Index);

                //先添加TabPage属性

                e.Graphics.DrawString(this.TabPages[e.Index].Text, this.Font, SystemBrushes.ControlText, tab.X + 2, tab.Y + 2);

                //再画一个矩形框

                using (Pen p = new Pen(Color.White))

                {

                    tab.Offset(tab.Width - (CLOSE_SIZE + 3), 2);

                    tab.Width = CLOSE_SIZE;

                    tab.Height = CLOSE_SIZE;

                    e.Graphics.DrawRectangle(p, tab);

                }

                //填充矩形框

                Color recColor = e.State == DrawItemState.Selected ? Color.White : Color.White;

                using (Brush b = new SolidBrush(recColor))

                {

                    e.Graphics.FillRectangle(b, tab);

                }

                //画关闭符号

                using (Pen objpen = new Pen(Color.Black))

                {

                    ////=============================================

                    //自己画X

                    ////"\"线

                    //Point p1 = new Point(myTabRect.X + 3, myTabRect.Y + 3);

                    //Point p2 = new Point(myTabRect.X + myTabRect.Width - 3, myTabRect.Y + myTabRect.Height - 3);

                    //e.Graphics.DrawLine(objpen, p1, p2);

                    ////"/"线

                    //Point p3 = new Point(myTabRect.X + 3, myTabRect.Y + myTabRect.Height - 3);

                    //Point p4 = new Point(myTabRect.X + myTabRect.Width - 3, myTabRect.Y + 3);

                    //e.Graphics.DrawLine(objpen, p3, p4);

                    ////=============================================

                    //使用图片

                    Bitmap bt = new Bitmap(image);

                    Point p5 = new Point(tab.X, 4);

                    e.Graphics.DrawImage(bt, p5);

                    //e.Graphics.DrawString(this.MainTabControl.TabPages[e.Index].Text, this.Font, objpen.Brush, p5);

                }

                e.Graphics.Dispose();

            }

            catch (Exception)

            { }

        }

        private void KDelTabControl_MouseDown(object sender, MouseEventArgs e)

        {

            if (e.Button == MouseButtons.Left)

            {

                int x = e.X, y = e.Y;

                //计算关闭区域

                Rectangle tab = this.GetTabRect(this.SelectedIndex);

                tab.Offset(tab.Width - (CLOSE_SIZE + 3), 2);

                tab.Width = CLOSE_SIZE;

                tab.Height = CLOSE_SIZE;

                //如果鼠标在区域内就关闭选项卡

                bool isClose = x > tab.X && x < tab.Right && y > tab.Y && y < tab.Bottom;

                if (isClose == true) this.TabPages.Remove(this.SelectedTab);

            }

        }

    }

}