Calculates the indexes of each line of text in the given range.
<p>
@param offset the logical start offset of the text lineate
@param length the length of the text to lineate, includes gap
@param numLines the number of lines to initially allocate for the line index array,
passed in for efficiency (the exact number of lines may be known)
@return a line indexes array where each line is identified by a start offset and
a length
Calculates the indexes of each line of text in the given range. <p>
@param offset the logical start offset of the text lineate @param length the length of the text to lineate, includes gap @param numLines the number of lines to initially allocate for the line index array, passed in for efficiency (the exact number of lines may be known) @return a line indexes array where each line is identified by a start offset and a length