private void CreateVisualsForLetter(ITextViewLine line)
{
//grab a reference to the lines in the current TextView
IWpfTextViewLineCollection textViewLines = this.textView.TextViewLines;
int start = line.Start;
int end = line.End;
//Loop through each character, and place a box over item
for (int i = start; (i < end); ++i)
{
if (this.textView.TextSnapshot[i].ToString().ToLower() == this.letter)
{
var span = new SnapshotSpan(this.textView.TextSnapshot, Span.FromBounds(i, i + 1));
Geometry g = textViewLines.GetMarkerGeometry(span);
if (g != null)
{
// save the location of this letterTofind to jump to later
string key = this.letterLocationSpans.AddSpan(span.Start);
// Align the image with the top of the bounds of the text geometry
var letterReference = new LetterReference(key, g.Bounds, 12);
Canvas.SetLeft(letterReference, g.Bounds.Left);
Canvas.SetTop(letterReference, g.Bounds.Top);
this.aceLayer.AddAdornment(AdornmentPositioningBehavior.TextRelative, span, null, letterReference, null);
}
}
}
}
public void UpdateLetter(string ch)
{
for (int i = 0; i < this.aceLayer.Elements.Count; i++)
{
//
if (this.aceLayer.Elements[i].Adornment is LetterReference == false)
{
continue;
}
LetterReference letterReference = (LetterReference)this.aceLayer.Elements[i].Adornment;
letterReference.UpdateHighlight(ch);
}
}