public CellString GetText(int offset, int length)
{
VerifyAccess();
var cells = new CellString(length);
// Get the line the contains 'offset'
var line = LineByOffset(offset);
var i = offset - line.BegOffset;
for (; line != null; line = line.NextLine, i = 0)
{
// Insert newline delimiters between lines
if (cells.Length != 0)
{
var len = Math.Min(length, LineEnd.Length);
cells.Append(LineEnd, 0, len);
length -= len;
}
// Insert text from 'line'
{
var len = Math.Min(length, line.Length);
cells.Append(line, i, len);
length -= len;
}
}
return(cells);
}
/// <summary>Gets the selected text.</summary>
public virtual CellString GetText()
{
var doc = TextArea.Document;
if (doc == null)
{
throw new Exception("No associated TextDocument");
}
var iter = Segments.GetEnumerator();
// No segments
if (!iter.MoveNext())
{
return(CellString.Empty);
}
// If there is only one segment, return the text directly
var text = doc.GetText(iter.Current);
if (!iter.MoveNext())
{
return(text);
}
// Otherwise, combine text from the segments
var cstr = new CellString(text)
{
Capacity = Length
};
for (var more = true; more; more = iter.MoveNext())
{
cstr.Append(doc.GetText(iter.Current));
}
return(cstr);
}
