/// <summary> /// 关闭Tab之前触发事件 /// </summary> /// <summary> /// </summary> /// <param name="e"></param> protected override void OnPaint(PaintEventArgs e) { base.OnPaint(e); if (!Visible) { return; } //画选点击选项卡, if (TabCount > 0) { var g = e.Graphics; Share.GraphicSetup(g); // g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality; // g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBilinear; // g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias; // alpha = Alpha.Normal; var sb = new SolidBrush(Share.BackColor); var pen = new Pen(Share.BorderColor); // g.FillPath(sb, GetPath(ClientRectangle, 5)); //画整体边框 // g.DrawPath(pen, GetPath(ClientRectangle, 5)); //画整体背景 var tabRect = Rectangle.Empty; var selecttabRect = Rectangle.Empty; // Point cursorPoint = this.PointToClient(MousePosition); TabPage page = null; TabPage selectPage = null; GraphicsPath gp = null; GraphicsPath selectgp = null; for (var i = 0; i < TabCount; i++) { page = TabPages[i]; tabRect = GetTabRect(i); tabRect.X += 2; tabRect.Y += 2; gp = DrawHelper.GetGoogleTabPath(tabRect, 8); if (SelectedIndex != i) { // alpha = Alpha.MoveOrUp; page.ForeColor = Color.CornflowerBlue; // sb = new SolidBrush(color); // pen = new Pen(color); sb.Color = Share.DisabelBackColor; g.FillPath(sb, gp); //画边框 g.DrawPath(pen, gp); //画背景 gp.Dispose(); // sb.Dispose(); //渲染选项卡文字 tabRect.X += 10; //让文字往右偏移10个像素.因为谷歌的tab 是个梯形的 tabRect.Width -= 20; TextRenderer.DrawText(g, page.Text, page.Font, tabRect, page.ForeColor, TextFormatFlags.VerticalCenter | TextFormatFlags.EndEllipsis | TextFormatFlags.HorizontalCenter); } else { selectPage = page; selectgp = gp; selecttabRect = tabRect; } if (i == TabCount - 1) { selectPage.ForeColor = Color.Orange; // alpha = Alpha.a200; // sb = new SolidBrush(color); // pen = new Pen(color); sb.Color = Share.BackColor; g.FillPath(sb, selectgp); //画背景 g.DrawPath(pen, selectgp); //画边框 selectgp.Dispose(); // sb.Dispose(); //画叉叉 ,叉叉是在最上层的, 所以要最后画 Bitmap clsBitmap; if (closeState == MouseState.press) { clsBitmap = Properties.Resources.icon_tbclose_press; } else if (closeState == MouseState.move) { clsBitmap = Properties.Resources.icon_tbclose_hover; } else { clsBitmap = Properties.Resources.icon_tbclose_normal; } g.DrawImage(clsBitmap, GetCloseRect(selecttabRect)); clsBitmap.Dispose(); //渲染选项卡文字 selecttabRect.X += 10; //让文字往右偏移10个像素.因为谷歌的tab 是个梯形的 selecttabRect.Width -= 20; TextRenderer.DrawText(g, selectPage.Text, selectPage.Font, selecttabRect, selectPage.ForeColor, TextFormatFlags.VerticalCenter | TextFormatFlags.EndEllipsis | TextFormatFlags.HorizontalCenter); var rect = new Rectangle(GetTabRect(0).X + 2, GetTabRect(0).Bottom + 2, TabPages[0].DisplayRectangle.Width + 6, TabPages[0].DisplayRectangle.Height + 6); var path = GetPath(rect, 5); pen.Color = Share.BorderColor; g.DrawPath(pen, path); //画页面边框 path.Dispose(); } } sb.Dispose(); pen.Dispose(); } }