Improve readability of QTextLine's handling of (negative) right bearing

  - Helper functions in LineBreakHelper have been renamed from
    adjustFoo to calculateFoo, to signal that they do work, and
    are not adjusting something relative to something else.

  - The use of QFixed(1) and >= 0 has been replaced with an explicit
    constant for the case of the bearing not being calculated yet.

  - A helper function negativeRightBearing() has been added that
    returns the absolute value of any negative right bearing, making
    the width computations simpler.

  - Comments have been added and rewritten to make the logic clearer.

Change-Id: I1d3a0214cfa8b4fed4551f3444b43a37d55bd69b
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@theqtcompany.com>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@theqtcompany.com>

0 files changed, 0 insertions, 0 deletions