private void ShowHideScrollbars()
{
int visibleLines = ActiveTextAreaControl.TextArea.TextView.VisibleLineCount;
int visibleColumns = ActiveTextAreaControl.TextArea.TextView.VisibleColumnCount;
int documentLines = Document.TotalNumberOfLines;
int documentColumns = Document.LineSegmentCollection.Select(x => x.Length).Max();
bool vscroll = documentLines > (visibleLines * 0.8);
bool hscroll = documentColumns > (visibleColumns * 0.8);
ActiveTextAreaControl.ShowScrollBars(vscroll, hscroll);
}
