private void ReplaceSingleLineText(TextArea textArea, SelectionSegment lineSegment, string newText, out int insertionLength)
{
if (lineSegment.Length == 0)
{
if (newText.Length > 0 && textArea.ReadOnlySectionProvider.CanInsert(lineSegment.StartOffset))
{
newText = AddSpacesIfRequired(newText, new TextViewPosition(document.GetLocation(lineSegment.StartOffset), lineSegment.StartVisualColumn), new TextViewPosition(document.GetLocation(lineSegment.EndOffset), lineSegment.EndVisualColumn));
textArea.Document.Insert(lineSegment.StartOffset, newText);
}
}
else
{
ISegment[] segmentsToDelete = textArea.GetDeletableSegments(lineSegment);
for (int i = segmentsToDelete.Length - 1; i >= 0; i--)
{
if (i == segmentsToDelete.Length - 1)
{
if (segmentsToDelete[i].Offset == SurroundingSegment.Offset && segmentsToDelete[i].Length == SurroundingSegment.Length)
{
newText = AddSpacesIfRequired(newText, new TextViewPosition(document.GetLocation(lineSegment.StartOffset), lineSegment.StartVisualColumn), new TextViewPosition(document.GetLocation(lineSegment.EndOffset), lineSegment.EndVisualColumn));
}
textArea.Document.Replace(segmentsToDelete[i], newText);
}
else
{
textArea.Document.Remove(segmentsToDelete[i]);
}
}
}
insertionLength = newText.Length;
}
private TextViewPosition GetEnd()
{
SelectionSegment segment = (startLine < endLine ? segments.Last() : segments.First());
if (startXPos < endXPos)
{
return(new TextViewPosition(document.GetLocation(segment.EndOffset), segment.EndVisualColumn));
}
else
{
return(new TextViewPosition(document.GetLocation(segment.StartOffset), segment.StartVisualColumn));
}
}