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); } } } }
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