/// <summary>
/// Draw this instance on the Graphics.
/// </summary>
/// <param name="g">Graphics to draw with.</param>
/// <param name="rect">Boundary to draw on.</param>
/// <param name="font">Font to draw with.</param>
/// <param name="brush">Brush to draw with.</param>
/// <param name="selected">Is in selected mode.</param>
public void Draw(Graphics g, Rectangle rect, Font font,
Brush brush, bool selected)
{
if (g == null)
{
throw new ArgumentNullException("g");
}
// draw page border and shadow
rect.Inflate(-2, -2);
g.DrawRectangle(Pens.Purple, rect);
g.FillRectangle(brush, rect);
if (_mouseState == MouseState.Enter || _selected)
{
using (Pen pen = new Pen(Color.DarkBlue, 2))
{
g.DrawRectangle(pen, rect);
}
}
RequestRateEventArgs rateEvent = new RequestRateEventArgs(this, 0);
OnRequestRate(this, rateEvent);
if (rateEvent.Rate > 0)
{
using (Font fnt = new Font("Microsoft Sans Serif", 7.5F,
FontStyle.Bold, GraphicsUnit.Point))
{
string label = rateEvent.Rate.ToString(CultureInfo.InvariantCulture);
SizeF sz = g.MeasureString(label, fnt);
g.DrawString(label, fnt, Brushes.White,
this.X + ((this.Size.Width - sz.Width) / 2),
this.Y + ((this.Size.Height - sz.Height) / 2));
}
}
}
/// <summary>
/// Hanlde OnRequestRate event of needCostRateNode.
/// </summary>
/// <param name="sender">Event sender.</param>
/// <param name="e">Event arguments.</param>
private void NeedCostRateNode_OnRequestRate(object sender, RequestRateEventArgs e)
{
NodeRoute route = Utterance.Viterbi.FindRoute(e.CostNodeGlyph.CostNode);
if (route == null)
{
e.Rate = 0;
return;
}
e.Rate = Utterance.Viterbi.NodeRoutes.IndexOf(route);
e.Rate = e.Rate + 1;
}
