protected override void OnPaint(PaintEventArgs e)
{
if (!base.Visible)
{
return;
}
//base.OnPaint(e);
Graphics g = e.Graphics;
Rectangle rect = Rectangle.Empty;
switch (errorAlignment)
{
case ErrorAlignment.Top:
rect = new Rectangle(0, 0, this.Width, this.Height - TriangleHeight);
break;
case ErrorAlignment.Right:
//TriangleWidth = 15;
rect = new Rectangle(TriangleWidth, 0, this.Width - TriangleWidth, this.Height);
break;
case ErrorAlignment.Left:
rect = new Rectangle(0, 0, this.Width - TriangleWidth, this.Height);
break;
case ErrorAlignment.Bottom:
rect = new Rectangle(0, TriangleHeight, this.Width, this.Height - TriangleHeight);
break;
default:
break;
}
Point[] point = GetPolygon();
GraphicsPath path = new GraphicsPath();
path.AddPolygon(point);
GraphicsPath dd = GraphicsPathHelper.DrawRoundRect(rect.X, rect.Y, rect.Width, rect.Height, 18);
path.AddPath(dd, true);
path.CloseAllFigures();
this.Region = new Region(path);
using (Brush hrush = new SolidBrush(this.backColor))
{
//抗锯齿
g.SmoothingMode = SmoothingMode.AntiAlias;
g.FillPath(hrush, path);
}
DrawText(g, rect);
}