public static ITextViewLine GetSpecViewLine(ITextView tv, int offset, TriBezierLines tbl)
{
if (tv == null)
{
return null;
}
ITextViewLineCollection tvlc;
try
{
tvlc = tv.TextViewLines;
}
catch (InvalidOperationException)
{
return null;
}
if (tvlc == null) return null; //quite important, not applicable now
int colSize = tvlc.Count;
offset -= 1; //strange here, a bug
double theight = tv.ViewportHeight / 2.0;
try
{
double lineHeight = tvlc.GetTextViewLineContainingYCoordinate(theight).Height;
double midoffset = lineHeight * offset * (TriBezierLines.Mid - tbl);
return tvlc.GetTextViewLineContainingYCoordinate(theight - midoffset);
}
catch (System.Exception)
{
return null;
}
}
public BezierLine(TriBezierLines tbl)
{
myPath = new Path();
tblType = tbl;
}
