private void createImage()
{
Graphics g = this.CreateGraphics();
img = mathExp.CreateIcon(g);
g.Dispose();
}
public override void PaintValue(PaintValueEventArgs e)
{
rc = e.Bounds;
ParameterValue dv = e.Context.Instance as ParameterValue;
if (dv != null)
{
if (dv.DataIcon == null)
{
IMathExpression mew = e.Value as IMathExpression;
if (mew != null)
{
dv.DataIcon = mew.CreateIcon(e.Graphics);
}
}
if (dv.DataIcon != null)
{
e.Graphics.DrawImage(dv.DataIcon, e.Bounds);
}
e.Graphics.DrawString(dv.ToString(), f, br, (float)16, (float)1);
}
base.PaintValue(e);
}
