实例一:
using System; using System.ComponentModel; using System.Drawing; using System.Windows.Forms; namespace KUN.CONTROL.LIB.CONTROL { public partial class KMenuTabControl : System.Windows.Forms.TabControl { #region 属性、构造 Color SelectedColor = Color.LightSkyBlue; Color MoveColor = Color.LightSeaGreen; Color FontColor = Color.Black; int TextLeft = 10; [Browsable(true)] [Description("选项卡标题左边距"), Category("TextLeft"), DefaultValue(typeof(Int32), "10")] public int TitleTextLeft { get { return TextLeft; } set { this.TextLeft = value; } } [Browsable(true)] [Description("选项卡标题字体颜色"), Category("TitleColor"), DefaultValue(typeof(Color), "Black")] public Color TitleFontColor { get { return FontColor; } set { this.FontColor = value; } } [Browsable(true)] [Description("选项卡标题字体选中颜色"), Category("TitleColor"), DefaultValue(typeof(Color), "LightSkyBlue")] public Color TitleSelectedColor { get { return SelectedColor; } set { this.SelectedColor = value; } } [Browsable(true)] [Description("选项卡标题字体悬浮颜色"), Category("TitleColor"), DefaultValue(typeof(Color), "White")] public Color TitleMoveColor { get { return MoveColor; } set { this.MoveColor = value; } } [Browsable(true), Description("整个控件的背景色"), Category("外观")] public Color TabControlBackColor { get; set; } [Browsable(true), Description("TabControl ItemSize"), Category("外观")] public Size TabControlItemSize { get; set; } public KMenuTabControl() { this.SuspendLayout(); this.DrawMode = TabDrawMode.OwnerDrawFixed; this.ResumeLayout(false); this.SizeMode = TabSizeMode.Fixed; this.Multiline = true; this.TabControlBackColor = Color.SeaShell; this.TabControlItemSize = new Size(100, 28); this.DrawItem += new System.Windows.Forms.DrawItemEventHandler(this.tabMenu_DrawItem); this.MouseDown += new System.Windows.Forms.MouseEventHandler(this.MainTabControl_MouseDown); } #endregion protected override void OnPaint(PaintEventArgs e) { Rectangle tcRec = this.ClientRectangle;//整个tabControl的边框 e.Graphics.FillRectangle(new SolidBrush(this.TabControlBackColor), tcRec); if (this.ItemSize!=this.TabControlItemSize) { this.ItemSize = TabControlItemSize; } StringFormat sf = new StringFormat();//封装文本布局信息 sf.LineAlignment = StringAlignment.Center; sf.Alignment = StringAlignment.Near; for (int i = 0; i < this.TabCount; i++) { Graphics g = e.Graphics; // int width = (int)g.MeasureString(this.Controls[i].Text, this.Font).Width + 40; Rectangle rect = this.GetTabRect(i); // rect.Width = width; if (this.SelectedIndex == i) g.FillRectangle(new SolidBrush(MoveColor), rect); else g.FillRectangle(new SolidBrush(SelectedColor), rect); SolidBrush brush = new SolidBrush(FontColor); // rect.Width = width; rect.X += TextLeft; g.DrawString(this.Controls[i].Text, this.Font, brush, rect, sf); using (Pen objpen = new Pen(Color.Black)) { int tx = (int)(rect.X + (rect.Width - 30)); rect.X = tx - 2; Point p5 = new Point(tx, 8); Font font = new System.Drawing.Font("微软雅黑", 12); g.DrawString("〇", font, brush, rect, sf); font = new System.Drawing.Font("微软雅黑", 11); rect.X = tx + 2; rect.Y = rect.Y - 1; g.DrawString("×", font, brush, rect, sf); } } } public override Rectangle DisplayRectangle { get { Rectangle rect = base.DisplayRectangle; return new Rectangle(rect.Left - 2, rect.Top - 2, rect.Width + 4, rect.Height + 5); } } int index = -1; protected override void OnMouseMove(MouseEventArgs e) { int Count = 0; try { Graphics g = this.CreateGraphics(); SolidBrush brush = new SolidBrush(FontColor); StringFormat sf = new StringFormat();//封装文本布局信息 sf.LineAlignment = StringAlignment.Center; sf.Alignment = StringAlignment.Near; for (int i = 0; i < this.TabPages.Count; i++) { TabPage tp = this.TabPages[i]; if (this.GetTabRect(i).Contains(e.Location) && tp != this.SelectedTab) { if (index != i) { if (Count == 0) { if (index != -1 && this.TabPages[index] != this.SelectedTab) { g.FillRectangle(new SolidBrush(SelectedColor), this.GetTabRect(index)); RectangleF tRectangle = this.GetTabRect(index); tRectangle.X += TextLeft; g.DrawString(this.Controls[index].Text, this.Font, brush, tRectangle, sf); } Count = 1; } index = i; g.FillRectangle(new SolidBrush(SelectedColor), this.GetTabRect(i)); RectangleF tRectangleF = this.GetTabRect(i); tRectangleF.X += TextLeft; g.DrawString(this.Controls[i].Text, this.Font, brush, tRectangleF, sf); using (Pen objpen = new Pen(Color.Black)) { int tx = (int)(tRectangleF.X + (tRectangleF.Width - 30)); tRectangleF.X = tx - 2; brush.Color = Color.White; Font font = new System.Drawing.Font("微软雅黑", 12); g.DrawString("〇", font, brush, tRectangleF, sf); font = new System.Drawing.Font("微软雅黑", 11); tRectangleF.X = tx + 2; tRectangleF.Y = tRectangleF.Y - 1; g.DrawString("×", font, brush, tRectangleF, sf); } } } if (this.GetTabRect(i).Contains(e.Location) && tp == this.SelectedTab) { if (index != -1 && index != this.SelectedIndex) { g.FillRectangle(new SolidBrush(SelectedColor), this.GetTabRect(index)); RectangleF tRectangleF = this.GetTabRect(index); tRectangleF.X += TextLeft; g.DrawString(this.Controls[index].Text, this.Font, brush, tRectangleF, sf); using (Pen objpen = new Pen(Color.Black)) { int tx = (int)(tRectangleF.X + (tRectangleF.Width - 30)); tRectangleF.X = tx - 2; Font font = new System.Drawing.Font("微软雅黑", 12); g.DrawString("〇", font, brush, tRectangleF, sf); font = new System.Drawing.Font("微软雅黑", 11); tRectangleF.X = tx + 2; tRectangleF.Y = tRectangleF.Y - 1; g.DrawString("×", font, brush, tRectangleF, sf); } } index = -1; } } } catch (Exception) { } Count = 0; base.OnMouseMove(e); } protected override void OnMouseLeave(EventArgs e) { try { Graphics g = this.CreateGraphics(); if (index != -1 && this.TabPages[index] != this.SelectedTab) { g.FillRectangle(new SolidBrush(SelectedColor), this.GetTabRect(index)); SolidBrush brush = new SolidBrush(FontColor); RectangleF tRectangleF = this.GetTabRect(index); StringFormat sf = new StringFormat();//封装文本布局信息 sf.LineAlignment = StringAlignment.Center; sf.Alignment = StringAlignment.Near; tRectangleF.X += TextLeft; g.DrawString(this.Controls[index].Text, this.Font, brush, tRectangleF, sf); using (Pen objpen = new Pen(Color.Black)) { int tx = (int)(tRectangleF.X + (tRectangleF.Width - 30)); tRectangleF.X = tx - 2; Point p5 = new Point(tx, 8); Font font = new System.Drawing.Font("微软雅黑", 12); g.DrawString("〇", font, brush, tRectangleF, sf); font = new System.Drawing.Font("微软雅黑", 11); tRectangleF.X = tx + 2; tRectangleF.Y = tRectangleF.Y - 1; g.DrawString("×", font, brush, tRectangleF, sf); } } } catch (Exception) { } index = -1; base.OnMouseLeave(e); } /// <summary> /// 重绘控件 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void tabMenu_DrawItem(object sender, DrawItemEventArgs e) { this.SetStyle( ControlStyles.UserPaint | // 控件将自行绘制,而不是通过操作系统来绘制 ControlStyles.OptimizedDoubleBuffer | // 该控件首先在缓冲区中绘制,而不是直接绘制到屏幕上,这样可以减少闪烁 ControlStyles.AllPaintingInWmPaint | // 控件将忽略 WM_ERASEBKGND 窗口消息以减少闪烁 ControlStyles.ResizeRedraw | // 在调整控件大小时重绘控件 ControlStyles.SupportsTransparentBackColor, // 控件接受 alpha 组件小于 255 的 BackColor 以模拟透明 true); // 设置以上值为 true this.UpdateStyles(); } //关闭按钮功能 private void MainTabControl_MouseDown(object sender, MouseEventArgs e) { int closeSize = 20; 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 - (closeSize + 3), 4); tab.Width = closeSize; tab.Height = closeSize; if (this.TabCount == 1) return; //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); } } } } }
实例二:
using System.ComponentModel; using System.Drawing; using System.Windows.Forms; namespace KUN.CONTROL.LIB.CONTROL { public partial class KTabControl : System.Windows.Forms.TabControl { [Browsable(true), Description("整个控件的背景色"), Category("外观")] public Color TabControlBackColor { get; set; } [Browsable(true), Description("Tab的标题栏边框颜色"), Category("外观")] public Color TabBorderColor { get; set; } [Browsable(true), Description("当前激活Tab的标题栏背景色"), Category("外观")] public Color ActivedTabBackColor { get; set; } [Browsable(true), Description("当前激活Tab的标题文字颜色"), Category("外观")] public Color ActivedTabLabelColor { get; set; } [Browsable(true), Description("未激活Tab的标题栏背景色"), Category("外观")] public Color InActivedTabBackColor { get; set; } [Browsable(true), Description("未激活Tab的标题文字颜色"), Category("外观")] public Color InActivedTabLabelColor { get; set; } [Browsable(true), Description("Tab标题栏的大小"), Category("外观")] public Size TabSize { get; set; } public KTabControl() { this.InitializeComponent(); TabSet(); this.TabBorderColor = Color.Black; this.ActivedTabLabelColor = Color.Black; this.InActivedTabLabelColor = Color.Black; this.ActivedTabBackColor = Color.White; this.InActivedTabBackColor = Color.FromArgb(0, 192, 192); this.TabControlBackColor = Color.Transparent; this.TabSize = new Size(100, 35); } protected override void OnMouseDoubleClick(MouseEventArgs e) { if (this.TabPages.Count == 1) return; this.TabPages.RemoveAt(this.SelectedIndex); } protected override void OnPaint(PaintEventArgs e) { Rectangle tcRec = this.ClientRectangle;//整个tabControl的边框 e.Graphics.FillRectangle(new SolidBrush(this.TabControlBackColor), tcRec); for (int i = 0; i < this.TabPages.Count; i++) { Rectangle tabRectangle = new Rectangle(1, 1 + i * TabSize.Height, TabSize.Width, TabSize.Height); SolidBrush brush = new SolidBrush(this.InActivedTabLabelColor); StringFormat sf = new StringFormat();//封装文本布局信息 sf.LineAlignment = StringAlignment.Center; sf.Alignment = StringAlignment.Center; if (i == this.SelectedIndex) { brush = new SolidBrush(this.ActivedTabLabelColor); e.Graphics.FillRectangle(new SolidBrush(ActivedTabBackColor), tabRectangle); e.Graphics.DrawRectangle(new Pen(this.TabBorderColor), tabRectangle); } else { e.Graphics.FillRectangle(new SolidBrush(InActivedTabBackColor), tabRectangle); e.Graphics.DrawRectangle(new Pen(this.TabBorderColor), tabRectangle); } e.Graphics.DrawString(this.Controls[i].Text, this.Font, brush, tabRectangle, sf); } } /// <summary> /// 设定控件绘制模式 /// </summary> private void TabSet() { this.DrawMode = TabDrawMode.OwnerDrawFixed; this.Alignment = TabAlignment.Left; this.SizeMode = TabSizeMode.Fixed; this.Multiline = true; base.SetStyle( ControlStyles.UserPaint | ControlStyles.OptimizedDoubleBuffer | ControlStyles.AllPaintingInWmPaint | ControlStyles.ResizeRedraw | ControlStyles.SupportsTransparentBackColor, true); base.UpdateStyles(); } public override Rectangle DisplayRectangle { get { Rectangle rect = base.DisplayRectangle; return new Rectangle(rect.Left - 3, rect.Top - 3, rect.Width + 6, rect.Height + 5); } } } }
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