/// <summary>
/// The <see cref="TreeView.DrawNode"/> event handler
/// for the <see cref="TreeView"/> <see cref="trvTrials"/>.
/// Adds drawing of trial icons to default drawing behaviour.
/// </summary>
/// <param name="sender">Source of the event.</param>
/// <param name="e">An empty <see cref="EventArgs"/></param>
private void trvTrials_DrawNode(object sender, DrawTreeNodeEventArgs e)
{
e.DrawDefault = true;
Rectangle idBounds = e.Node.Bounds;
idBounds.Offset(e.Node.Bounds.Width + 2, 0);
string idString = "(ID:" + e.Node.Name + ")";
e.Graphics.DrawString(idString, this.trvTrials.Font, Brushes.Black, idBounds.Location);
SizeF textSize = e.Graphics.MeasureString(idString, this.trvTrials.Font);
// If the randomize flag is set, draw a dice icon
// to the right of the label text.
bool randomize = ((SlideshowTreeNode)e.Node).Randomize;
if (randomize)
{
Rectangle diceBounds = e.Node.Bounds;
diceBounds.Offset(e.Node.Bounds.Width + 10 + (int)textSize.Width, 0);
Slideshow.DrawDice(e.Graphics, diceBounds.Location);
}
}
