/// <summary>
/// Draws a line of the content.
/// </summary>
/// <param name="e">Event arguments.</param>
protected virtual void OnDrawLine(DrawNodeLineEventArgs e)
{
DrawLine?.Invoke(this, e);
if (e.Handled)
{
return;
}
var eContent = new GetLineContentsEventArgs(e.Node, e.LineIndex, Color.Empty);
OnGetLineContents(eContent);
if (eContent.ShowBar)
{
// Free space indicator
using (Brush bBarBack = new SolidBrush(BarBackColor))
using (Brush bBarFill = new SolidBrush(!eContent.Color.IsEmpty ? eContent.Color : eContent.BarPercentage > BarCriticalPercentage ? BarCriticalFillColor : BarFillColor))
using (Pen pBarBorder = new Pen(BarBorderColor))
{
e.Graphics.FillRectangle(bBarBack, e.Bounds);
e.Graphics.FillRectangle(bBarFill, new RectangleF(e.Bounds.Left, e.Bounds.Top, e.Bounds.Width * eContent.BarPercentage, e.Bounds.Height));
e.Graphics.DrawRectangle(pBarBorder, Utility.ToRectangle(e.Bounds));
}
}
else
{
using (Brush brush = new SolidBrush(!eContent.Color.IsEmpty ? eContent.Color : e.LineIndex == 0 ? ForeColor : DetailTextColor))
using (StringFormat stringFormat = new StringFormat())
{
e.Graphics.DrawString(eContent.Contents, Font, brush, e.Bounds, stringFormat);
}
}
}
/// <summary>
/// Gets the contents of a line of text of an item.
/// </summary>
/// <param name="e">Event arguments.</param>
protected virtual void OnGetLineContents(GetLineContentsEventArgs e)
{
GetLineContents?.Invoke(this, e);
}
