/// <summary>
/// Searches for the given <see cref="CharacterRange"/> in the current results and returns a string describing its index.
/// </summary>
/// <param name="r"><see cref="CharacterRange"/> of interest.</param>
/// <returns>String in the format "i out of N matches".</returns>
public string GetIndexString(CharacterRange r)
{
if ((CurrentResults != null) && (r.cpMax != r.cpMin))
{
var index = CurrentResults.BinarySearch(r) + 1;
return(index + " out of " + CurrentResults.Count + " matches");
}
else
{
return(string.Empty);
}
}
void GetResults(TextView view, int start, int length)
{
CurrentResults.Clear();
if (string.IsNullOrEmpty(textToFind))
{
return;
}
if (string.IsNullOrEmpty(view.Document.Text))
{
return;
}
foreach (Match m in Expr.Matches(view.Document.Text, start))
{
CurrentResults.Add(TextRange.FromMatch(m));
}
}
public void Draw(TextView textView, DrawingContext drawingContext)
{
if (textView == null)
{
throw new ArgumentNullException("textView");
}
if (drawingContext == null)
{
throw new ArgumentNullException("drawingContext");
}
if (CurrentResults == null || !textView.VisualLinesValid)
{
return;
}
var visualLines = textView.VisualLines;
if (visualLines.Count == 0)
{
return;
}
var viewStart = visualLines.First().FirstDocumentLine.Offset;
var viewEnd = visualLines.Last().LastDocumentLine.EndOffset;
foreach (var result in CurrentResults.FindOverlappingSegments(viewStart, viewEnd - viewStart))
{
var geoBuilder = new BackgroundGeometryBuilder
{
//BorderThickness = markerPen != null ? markerPen.Thickness : 0,
AlignToWholePixels = true,
CornerRadius = 3
};
geoBuilder.AddSegment(textView, result);
var geometry = geoBuilder.CreateGeometry();
if (geometry != null)
{
drawingContext.DrawGeometry(_markerBrush, _markerPen, geometry);
}
}
}
