private List <string> GetSplittedString()
{
if (!ContentText.ToLower().Contains(HighlightText.ToLower()))
{
return new List <string>()
{
ContentText
}
}
;
int startIndex = ContentText.IndexOf(HighlightText, StringComparison.OrdinalIgnoreCase);
List <string> splittedTexts = new List <string>();
string matchedText = ContentText.Substring(startIndex, HighlightText.Length);
string startText = startIndex > 0 ? ContentText.Substring(0, startIndex) : string.Empty;
string lastText = ContentText.Substring(startIndex + HighlightText.Length);
if (!string.IsNullOrEmpty(startText))
{
splittedTexts.Add(startText);
}
if (!string.IsNullOrEmpty(matchedText))
{
splittedTexts.Add(matchedText);
}
if (!string.IsNullOrEmpty(lastText))
{
splittedTexts.Add(lastText);
}
return(splittedTexts);
}
}
private void Start()
{
highlightText = gameObject.AddComponent <HighlightText>();
highlightAudioButtons[0].interactable = true;
}
// rendering
protected override void OnRender(DrawingContext drawingContext)
{
// draw background
drawingContext.PushClip(new RectangleGeometry(new Rect(0, 0, ActualWidth, ActualHeight)));
drawingContext.DrawRectangle(BackgroundBrush, new Pen(), new Rect(0, 0, ActualWidth, ActualHeight));
// draw text
if (Text == string.Empty)
{
return;
}
var formattedText = new FormattedText(
Text,
System.Globalization.CultureInfo.CurrentCulture,
FlowDirection.LeftToRight,
new Typeface(FontFamily.Source),
FontSize, ForegroundBrush);
var leftMargin = 4.0 + BorderThickness.Left + LineNumberMarginWidth;
var topMargin = 2.0 + BorderThickness.Top;
// Background highlight
if (HighlightText != null && HighlightText.Any())
{
foreach (string text in HighlightText)
{
var index = 0;
var lastIndex = Text.LastIndexOf(text, StringComparison.OrdinalIgnoreCase);
while (index <= lastIndex)
{
index = Text.IndexOf(text, index, StringComparison.OrdinalIgnoreCase);
Geometry geom = formattedText.BuildHighlightGeometry(new Point(leftMargin, topMargin - VerticalOffset), index, text.Length);
if (geom != null)
{
drawingContext.DrawGeometry(HighlightBrush, null, geom);
}
index += 1;
}
}
}
HighlightSyntax(formattedText);
// left from first char boundary
var leftBorder = GetRectFromCharacterIndex(0).Left;
if (!double.IsInfinity(leftBorder))
{
_leftTextBorder = leftBorder;
}
drawingContext.DrawText(formattedText, new Point(_leftTextBorder - HorizontalOffset, topMargin - VerticalOffset));
// draw lines
if (GetLastVisibleLineIndex() != -1)
{
LastLineNumberFormat = GetLineNumbers();
}
if (LastLineNumberFormat != null)
{
LastLineNumberFormat.SetForegroundBrush(LineNumberBrush);
drawingContext.DrawText(LastLineNumberFormat, new Point(3, topMargin));
}
}
