protected override void OnRender(System.Windows.Media.DrawingContext drawingContext)
{
drawingContext.DrawRectangle(new System.Windows.Media.SolidColorBrush(System.Windows.Media.Color.FromArgb(0, 255, 0, 0)),
null, new Rect(RenderSize));
if (this.TextView == null || this.TextView.VisualLinesValid == false)
{
return;
}
foreach (VisualLine l in this.TextView.VisualLines)
{
if (_break.Contains(l.FirstDocumentLine.LineNumber))
{
Point lt = new Point(1, l.VisualTop - this.TextView.VerticalOffset + 1);
Point rb = new Point(lt.X + this.RenderSize.Width - 4, lt.Y + l.Height - 2);
drawingContext.DrawRoundedRectangle(new System.Windows.Media.SolidColorBrush(System.Windows.Media.Color.FromRgb(255, 0, 0)),
null,
new Rect(lt, rb), (rb.X - lt.X) / 2, (rb.Y - lt.Y) / 2);
}
}
//base.OnRender(drawingContext);
}