protected override void OnPaint(PaintEventArgs e)
{
Bitmap bm = new Bitmap(this.Width, this.Height, e.Graphics);
Graphics g = Graphics.FromImage(bm);
g.FillRectangle(Brushes.LightGray, new Rectangle(0, 0, bm.Width, bm.Height));
e.Graphics.FillRectangle(Brushes.LightGray, new Rectangle(0, 0, this.Width, this.Height));
int x = 4, y = 4;
int n = 0;
foreach (ShapeType shape in Enum.GetValues(typeof(ShapeType)))
{
GraphicsPath path = new GraphicsPath();
ShapeControl.updateOutline(ref path, shape, _width, _height);
g.FillRectangle(Brushes.LightGray, 0, 0, bm.Width, bm.Height);
g.FillPath(Brushes.Yellow, path);
g.DrawPath(Pens.Red, path);
e.Graphics.DrawImage(bm, x, y, new Rectangle(new Point(0, 0), new Size(_width + 1, _height + 1)), GraphicsUnit.Pixel);
if (this.shape.Equals(shape))
{
e.Graphics.DrawRectangle(Pens.Red, new Rectangle(new Point(x - 2, y - 2), new Size(_width + 4, _height + 4)));
}
n++;
x = (n % _numcol) * (_width); x = x + (n % _numcol) * 6 + 4;
y = (n / _numcol) * (_height); y = y + (n / _numcol) * 6 + 4;
}
}
public override void PaintValue(System.Drawing.Design.PaintValueEventArgs e)
{
Bitmap bm = new Bitmap(e.Bounds.Width + 4, e.Bounds.Height + 4, e.Graphics);
Graphics g = Graphics.FromImage(bm);
ShapeType shape = (ShapeType)e.Value;
GraphicsPath path = new GraphicsPath();
ShapeControl.updateOutline(ref path, shape, e.Bounds.Width - 5, e.Bounds.Height - 5);
g.FillPath(Brushes.Yellow, path);
g.DrawPath(Pens.Red, path);
e.Graphics.DrawImage(bm, 3, 3, new Rectangle(new Point(0, 0), new Size(e.Bounds.Width, e.Bounds.Height)), GraphicsUnit.Pixel);
}