public static void DrawEventLabel(this SpectralEvent @event, IImageProcessingContext graphics, EventRenderingOptions options)
{
if (!options.DrawLabel)
{
return;
}
var text = @event.Name;
if (string.IsNullOrWhiteSpace(text))
{
return;
}
var bounds = TextMeasurer.MeasureBounds(text, new RendererOptions(Roboto6));
var topLeft = options.Converters.GetPoint(@event);
topLeft.Offset(0, -bounds.Height);
graphics.DrawTextSafe(
@event.Name,
Roboto6,
options.Label,
topLeft);
}
/// <summary>
/// Draws a "score" indicator on the left edge of an event.
/// </summary>
/// <param name="event">The event for which to draw the score indicator.</param>
/// <param name="graphics">The image context to draw to.</param>
/// <param name="options">The event rendering options to use.</param>
public static void DrawScoreIndicator(this SpectralEvent @event, IImageProcessingContext graphics, EventRenderingOptions options)
{
if (!options.DrawScore)
{
return;
}
var normalizedScore = @event.ScoreNormalized.Clamp(0, 1);
if (normalizedScore == 0 || double.IsNaN(normalizedScore))
{
return;
}
var rect = options.Converters.GetPixelRectangle(@event);
// truncate score bar to neatest whole pixel after scaling by height
var scaledHeight = (int)((float)normalizedScore * rect.Height);
var top = new PointF(rect.Left, rect.Bottom - scaledHeight);
var bottom = new PointF(rect.Left, rect.Bottom);
// the order of the supplied points is important!
// DO NOT CHANGE
graphics.NoAA().DrawLines(options.Score, top, bottom);
}
