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网博士自助建站系统,阿里云购买域名后怎么建网站,深圳做微商网站,怎么做网站推广辛苦半天做出来的#xff0c;如果觉得好用#xff0c;记得点赞 效果图如下#xff1a; 具体操作#xff1a; 1 、添加代码#xff08;代码在下面#xff09;#xff0c;重新生成下整个工程#xff0c;在工具栏中就出现控件#xff0c;将控件拖到窗体中 2、只需要调整…辛苦半天做出来的如果觉得好用记得点赞 效果图如下 具体操作 1 、添加代码代码在下面重新生成下整个工程在工具栏中就出现控件将控件拖到窗体中 2、只需要调整这些参数就行 3. 常用事件 4. 下面是代码 直接复制将顶部 namespace 名改成你的工程名称就能用了 。 using System; using System.Collections.Generic; using System.ComponentModel; using System.Drawing; using System.Drawing.Drawing2D; using System.Linq; using System.Text; using System.Windows.Forms;namespace 视频下载和播放 {public class LTrackBar : Control{public LTrackBar(){SetStyle(ControlStyles.AllPaintingInWmPaint, true);SetStyle(ControlStyles.OptimizedDoubleBuffer, true);CreateControl();}[Category(DemoUI), Description(背景条颜色)]/// summary/// 未滑按钮/// /summaryprivate Color _BarButtonColor Color.FromArgb(0, 0, 200); // 浅绿色public Color L_BarButtonColor{get { return _BarButtonColor; }set{_BarButtonColor value;Invalidate();}}/// summary/// 未滑过的区域颜色/// /summaryprivate Color _BarColor Color.FromArgb(128, 255, 128); // 浅绿色public Color L_BarColor{get { return _BarColor; }set{_BarColor value;Invalidate();}}/// summary/// 已滑过的区域颜色/// /summaryprivate Color _SliderColor Color.FromArgb(0, 200, 0); // 浅绿色public Color L_SliderColor{get { return _SliderColor; }set{_SliderColor value;Invalidate();}}/// summary/// 圆角/// /summaryprivate bool _IsRound true;public bool L_IsRound {get { return _IsRound; }set {_IsRound value;Invalidate();}}/// summary/// 最小值/// /summaryprivate int _Minimum 0;public int L_Minimum {get { return _Minimum; }set {_Minimum Convert.ToInt32(value);if (_Minimum _Maximum) { _Minimum _Maximum - 1; }if (_Minimum 0) { _Minimum 0; }if (_Value _Minimum) { _Value _Minimum; }Invalidate();}}/// summary/// 最大值/// /summaryprivate int _Maximum 100;public int L_Maximum{get { return _Maximum; }set{_Maximum Convert.ToInt32(value);if (_Minimum _Maximum) { _Maximum _Minimum 1; }if (_Value _Minimum) { _Value _Minimum; }Invalidate();}}/// summary/// 添加 滑块值改变 委托事件/// /summary/// param namesender/param/// param namee/parampublic delegate void LValueChangedEventHandler(object sender, LEventArgs e);public event LValueChangedEventHandler LValueChanged;/// summary/// 滑块的当前值/// /summaryprivate int _Value 0;public int L_Value {get { return _Value; }set {_Value value;if (_Value _Maximum) { _Value _Maximum; }if (_Value _Minimum) { _Value _Minimum; }Invalidate();LValueChanged?.Invoke(this, new LEventArgs(_Value));}}/// summary/// 滑块的方向/// /summaryprivate Orientation _Orientation Orientation.Horizontal_LR;public Orientation L_Orientation{get { return _Orientation; }set {Orientation old _Orientation;_Orientation value;if (old ! _Orientation){Size new Size(Size.Height, Size.Width);}} }/// summary/// 滑块的高度/// /summaryprivate int _BarSize 10;public int L_BarSize{get { return _BarSize; }set{_BarSize value;if (_BarSize 3) _BarSize 3;if (_Orientation Orientation.Horizontal_LR){Size new Size(Width , _BarSize);}else{ Size new Size(_BarSize,Height);}}}/// summary/// 实现只能调整宽度/高度需要重写SetBoundsCore方法/// /summaryprotected override void SetBoundsCore(int x, int y, int width, int height, BoundsSpecified specified){if (_Orientation Orientation.Horizontal_LR)base.SetBoundsCore(x, y, width, _BarSize, specified);elsebase.SetBoundsCore(x, y, _BarSize, height, specified);}MouseStatus mouseStatus;private PointF mousePoint;/// summary/// 尺寸变化是刷新/// /summary/// param namee/paramprotected override void OnSizeChanged(EventArgs e){base.OnSizeChanged(e);Invalidate();}protected override void OnPaint(PaintEventArgs e){base.OnPaint(e);pValueToPoint();e.Graphics.SmoothingMode SmoothingMode.HighQuality;float barSizeRatio 0.7f;if (_BarSize 15)barSizeRatio 0.5f;Pen penBarBack new Pen(_BarColor, _BarSize * barSizeRatio);Pen penBarFore new Pen(_SliderColor, _BarSize * barSizeRatio);float fCapWidth _BarSize;float fCapHalfWidth _BarSize / 2.0f;if (_IsRound){ penBarBack.StartCap LineCap.Round;penBarBack.EndCap LineCap.Round;penBarFore.StartCap LineCap.Round;penBarFore.EndCap LineCap.Round;}float fPointValue 0;if (_Orientation Orientation.Horizontal_LR){e.Graphics.DrawLine(penBarBack, fCapHalfWidth, Height / 2f, Width - fCapHalfWidth, Height / 2f);fPointValue mousePoint.X;if (fPointValue fCapHalfWidth) fPointValue fCapHalfWidth;if (fPointValue Width - fCapHalfWidth) fPointValue Width - fCapHalfWidth;}else{e.Graphics.DrawLine(penBarBack, Width / 2f, fCapHalfWidth, Width / 2f, Height - fCapHalfWidth);fPointValue mousePoint.Y;if (fPointValue fCapHalfWidth) fPointValue fCapHalfWidth;if (fPointValue Height - fCapHalfWidth) fPointValue Height - fCapHalfWidth;}Brush brush new SolidBrush(_BarButtonColor);if (_Orientation Orientation.Horizontal_LR){e.Graphics.DrawLine(penBarFore, fCapHalfWidth, Height / 2f, fPointValue, Height / 2f);e.Graphics.FillEllipse(brush, fPointValue - fCapHalfWidth, Height / 2f - fCapHalfWidth, fCapWidth-1, fCapWidth-1);}else{e.Graphics.DrawLine(penBarFore, Width / 2f, fPointValue, Width / 2f, Height - fCapHalfWidth);e.Graphics.FillEllipse(brush, Width / 2f - fCapHalfWidth, fPointValue - fCapHalfWidth, fCapWidth-1, fCapWidth - 1);}}private void pValueToPoint(){float fCapWidth _BarSize;float fCapHalfWidth _BarSize / 2.0f;float fRatio Convert.ToSingle(_Value - _Minimum) / (_Maximum - _Minimum);if (_Orientation Orientation.Horizontal_LR){float fPointValue fRatio * (Width - fCapWidth) fCapHalfWidth;mousePoint new PointF(fPointValue, fCapHalfWidth);}else{float fPointValue Height - fCapHalfWidth - fRatio * (Height - fCapWidth);mousePoint new PointF(fCapHalfWidth, fPointValue);}}protected override void OnMouseDown(MouseEventArgs e){mouseStatus MouseStatus.Down;mousePoint e.Location;pPointToValue();Invalidate();base.OnMouseDown(e); }protected override void OnMouseUp(MouseEventArgs e){mouseStatus MouseStatus.Up;base.OnMouseUp(e); }protected override void OnMouseMove(MouseEventArgs e){if (mouseStatus MouseStatus.Down){mousePoint e.Location;pPointToValue();Invalidate();}base.OnMouseMove(e);}protected override void OnMouseEnter(EventArgs e){mouseStatus MouseStatus.Enter;base.OnMouseEnter(e); }protected override void OnMouseLeave(EventArgs e){ mouseStatus MouseStatus.Leave;base.OnMouseLeave(e);}/// summary/// 计算滑块位置/// /summaryprivate void pPointToValue(){float fCapHalfWidth 0;float fCapWidth 0;if (_IsRound){fCapWidth _BarSize;fCapHalfWidth _BarSize * 0.5f;}// 计算滑块的位置if (_Orientation Orientation.Horizontal_LR){float fRatio Convert.ToSingle(mousePoint.X - fCapHalfWidth) / (Width - fCapWidth);_Value Convert.ToInt32(fRatio * (_Maximum - _Minimum) _Minimum);}else{float fRatio Convert.ToSingle(Height - mousePoint.Y - fCapHalfWidth) / (Height - fCapWidth);_Value Convert.ToInt32(fRatio * (_Maximum - _Minimum) _Minimum);}if (_Value _Minimum)_Value _Minimum;else if (_Value _Maximum)_Value _Maximum;LValueChanged?.Invoke(this, new LEventArgs(_Value));}}public class LEventArgs : EventArgs{public LEventArgs(object value){Value value;}public object Value { get; set; }}/// summary/// 控件方向/// /summarypublic enum Orientation{ /// summary/// 水平方向 从左到右/// /summaryHorizontal_LR,/ summary/ 水平方向 从右到左/ /summary//Horizontal_RL,/// summary/// 垂直方向 从下到上/// /summaryVertical_BT,/ summary/ 垂直方向 从上到下/ /summary//Vertical_TB,}/// summary/// 鼠标状态/// /summarypublic enum MouseStatus{ /// summary/// 鼠标进入/// /summaryEnter,/// summary/// 鼠标离开/// /summaryLeave,/// summary/// 鼠标按下/// /summaryDown,/// summary/// 鼠标放开/// /summaryUp}}