（八十七）c#Winform自定义控件-朝上的瓶子
官网
http://www.hzhcontrols.com/
前提
入行已经7,8年了，一直想做一套漂亮点的自定义控件，于是就有了本系列文章。
GitHub：https://github.com/kwwwvagaa/NetWinformControl
码云：https://gitee.com/kwwwvagaa/net_winform_custom_control.git
如果觉得写的还行，请点个 star 支持一下吧
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NuGet
Install-Package HZH_Controls
目录
http://www.hzhcontrols.com/blog-63.html
用处及效果
准备工作
之前的瓶子是朝下的，这里扩展一下 朝上
（五十六）c#Winform自定义控件-瓶子（工业）
开始
增加一个属性
private Direction direction = Direction.Down;
[Description("瓶子方向，默认朝下"), Category("自定义")]
public Direction Direction
{
get { return direction; }
set
{
direction = value;
Refresh();
}
}
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重绘里面判断朝上的代码
else
{
//写文字
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));
//画空瓶子
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);
//画液体
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);
//画液体面
g.FillEllipse(new SolidBrush(liquidColor), rectYT);
g.FillEllipse(new SolidBrush(Color.FromArgb(50, Color.White)), rectYT);
//画高亮
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;
}
//画瓶底
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));
//画瓶口
g.FillRectangle(new SolidBrush(bottleMouthColor), new Rectangle(m_workingRect.Left + m_workingRect.Width / 4, m_workingRect.Top - 15 + 1, m_workingRect.Width / 2, 15));
//画瓶颈阴影
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);
//写编号
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));
}
}
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最后的话
如果你喜欢的话，请到 https://gitee.com/kwwwvagaa/net_winform_custom_control 点个星星吧