（八十七）c#Winform自定義控件-朝上的瓶子

官網

http://www.hzhcontrols.com/

前提

入行已經7,8年了，一直想作一套漂亮點的自定義控件，因而就有了本系列文章。

GitHub：https://github.com/kwwwvagaa/NetWinformControl

碼雲：https://gitee.com/kwwwvagaa/net_winform_custom_control.git

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NuGet

Install-Package HZH_Controls

目錄

http://www.hzhcontrols.com/blog-63.html

用處及效果

準備工做

以前的瓶子是朝下的，這裏擴展一下 朝上

（五十六）c#Winform自定義控件-瓶子（工業）

開始

增長一個屬性

private  Direction direction = Direction.Down;            [Description( "瓶子方向，默認朝下" ), Category( "自定義" )]          public  Direction Direction          {              get  {  return  direction; }              set              {                  direction = value;                  Refresh();              }          }

重繪里面判斷朝上的代碼

else              {                  //寫文字                  var  size = g.MeasureString(title, Font);                  g.DrawString(title, Font,  new  SolidBrush(ForeColor),  new  PointF(( this .Width - size.Width) / 2,  this .Height - size.Height - 2));                  //畫空瓶子                  GraphicsPath pathPS =  new  GraphicsPath();                  Point[] psPS =  new  Point[]                   {                             new  Point(m_workingRect.Left + m_workingRect.Width / 4, m_workingRect.Top),                      new  Point(m_workingRect.Right - 1- m_workingRect.Width / 4, m_workingRect.Top),                      new  Point(m_workingRect.Right - 1, m_workingRect.Top + 15),                      new  Point(m_workingRect.Right - 1, m_workingRect.Bottom),                      new  Point(m_workingRect.Left , m_workingRect.Bottom),                      new  Point(m_workingRect.Left, m_workingRect.Top + 15),                  };                  pathPS.AddLines(psPS);                  pathPS.CloseAllFigures();                  g.FillPath( new  SolidBrush(bottleColor), pathPS);                  //畫液體                  decimal  decYTHeight = (m_value / maxValue) * m_workingRect.Height;                  GraphicsPath pathYT =  new  GraphicsPath();                  Rectangle rectYT = Rectangle.Empty;                  if  (decYTHeight > m_workingRect.Height - 15)                  {                      PointF[] psYT =  new  PointF[]                       {                           new  PointF(( float )(m_workingRect.Left+(decYTHeight-(m_workingRect.Height-15)))+3,( float )(m_workingRect.Bottom-decYTHeight)),                                             new  PointF(( float )(m_workingRect.Right-(decYTHeight-(m_workingRect.Height-15)))-3,( float )(m_workingRect.Bottom-decYTHeight)),                            new  PointF(m_workingRect.Right-1, m_workingRect.Top+15),                          new  PointF(m_workingRect.Right-1, m_workingRect.Bottom),                          new  PointF(m_workingRect.Left, m_workingRect.Bottom),                          new  PointF(m_workingRect.Left, m_workingRect.Top+15),                      };                      pathYT.AddLines(psYT);                      pathYT.CloseAllFigures();                      rectYT =  new  Rectangle(m_workingRect.Left + ( int )(decYTHeight - (m_workingRect.Height - 15)) +1, ( int )(m_workingRect.Bottom - decYTHeight - 4), m_workingRect.Width - ( int )(decYTHeight - (m_workingRect.Height - 15)) * 2-2 , 10);                  }                  else                  {                      PointF[] psYT =  new  PointF[]                       {                           new  PointF(m_workingRect.Left,( float )(m_workingRect.Bottom-decYTHeight)),                          new  PointF(m_workingRect.Right-1,( float )(m_workingRect.Bottom-decYTHeight)),                          new  PointF(m_workingRect.Right-1,m_workingRect.Bottom),                          new  PointF(m_workingRect.Left,m_workingRect.Bottom),                      };                      pathYT.AddLines(psYT);                      pathYT.CloseAllFigures();                      rectYT =  new  Rectangle(m_workingRect.Left, m_workingRect.Bottom - ( int )decYTHeight - 5, m_workingRect.Width, 10);                  }                    g.FillPath( new  SolidBrush(liquidColor), pathYT);                  g.FillPath( new  SolidBrush(Color.FromArgb(50, bottleMouthColor)), pathYT);                  //畫液體面                  g.FillEllipse( new  SolidBrush(liquidColor), rectYT);                  g.FillEllipse( new  SolidBrush(Color.FromArgb(50, Color.White)), rectYT);                  //畫高亮                  int  intCount = m_workingRect.Width / 2 / 4;                  int  intSplit = (255 - 100) / intCount;                  for  ( int  i = 0; i < intCount; i++)                  {                      int  _penWidth = m_workingRect.Width / 2 - 4 * i;                      if  (_penWidth <= 0)                          _penWidth = 1;                      g.DrawLine( new  Pen( new  SolidBrush(Color.FromArgb(10, Color.White)), _penWidth),  new  Point(m_workingRect.Width / 2, m_workingRect.Top + 15),  new  Point(m_workingRect.Width / 2, m_workingRect.Bottom));                      if  (_penWidth == 1)                          break ;                  }                  //畫瓶底                  g.FillEllipse( new  SolidBrush(liquidColor),  new  RectangleF(m_workingRect.Left, m_workingRect.Bottom - 5, m_workingRect.Width - 2, 10));                  g.FillEllipse( new  SolidBrush(Color.FromArgb(50, liquidColor)),  new  RectangleF(m_workingRect.Left, m_workingRect.Bottom - 5, m_workingRect.Width - 2, 10));                  //畫瓶口                  g.FillRectangle( new  SolidBrush(bottleMouthColor),  new  Rectangle(m_workingRect.Left + m_workingRect.Width / 4, m_workingRect.Top - 15 + 1, m_workingRect.Width / 2, 15));                  //畫瓶頸陰影                  GraphicsPath pathPJ =  new  GraphicsPath();                  Point[] psPJ =  new  Point[]                   {                             new  Point(m_workingRect.Left+m_workingRect.Width/4, m_workingRect.Top),                      new  Point(m_workingRect.Right-1-m_workingRect.Width/4, m_workingRect.Top),                      new  Point(m_workingRect.Right-1, m_workingRect.Top+15),                      new  Point(m_workingRect.Left,  m_workingRect.Top+15)                                 };                  pathPJ.AddLines(psPJ);                  pathPJ.CloseAllFigures();                  g.FillPath( new  SolidBrush(Color.FromArgb(50, bottleMouthColor)), pathPJ);                  //寫編號                  if  (! string .IsNullOrEmpty(m_NO))                  {                      var  nosize = g.MeasureString(m_NO, Font);                      g.DrawString(m_NO, Font,  new  SolidBrush(ForeColor),  new  PointF(( this .Width - nosize.Width) / 2, m_workingRect.Bottom - nosize.Height - 10));                  }              }

最後的話

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