private Image CreateImageToHighlightLine(Geometry geometry, LineResultMarker marker)
{
GeometryDrawing backgroundGeometry = new GeometryDrawing(marker.Fill, marker.Outline, geometry);
backgroundGeometry.Freeze();
DrawingImage backgroundDrawning = new DrawingImage(backgroundGeometry);
backgroundDrawning.Freeze();
return new Image {Source = backgroundDrawning};
}
private void HighlightLine(SnapshotSpan line, LineResultMarker marker)
{
IWpfTextViewLineCollection textViewLines = View.TextViewLines;
Geometry geometry = textViewLines.GetMarkerGeometry(line);
if (geometry != null)
{
Image highlight = CreateImageToHighlightLine(geometry, marker);
Canvas.SetLeft(highlight, geometry.Bounds.Left);
Canvas.SetTop(highlight, geometry.Bounds.Top);
Layer.AddAdornment(AdornmentPositioningBehavior.TextRelative, line, AdornmentLayerTags.ResultMarker, highlight, null);
}
}
