#4883 make calc-blot from bar-line.scm public

[Thomas Morley]

make calc-blot from bar-line.scm public

To facilitate defining custom-bar-lines using
ly:round-filled-box

http://codereview.appspot.com/299250044

[Thomas Morley]

bar-line::draw-filled-box

http://codereview.appspot.com/299250044

[Anonymous]

Passes make, make check andf a full make doc.

[Anonymous]

Patch on countdown for June 18th.

[Anonymous]

Patch counted down - please push.

[Thomas Morley]

pushed to staging as:

commit 893eca274995ace99dc5ed46b2d0711cd1cb0ab0
Author: Thomas Morley thomasmorley65@gmail.com
Date: Sun Jun 5 17:19:57 2016 +0200

Issue 4883 Implement public definition of bar-line::draw-filled-box

bar-line::draw-filled-box calls the hereby renamed procedure
bar-line::calc-blot to determine the blot diameter.
It will be used in:
  make-simple-bar-line
  make-thick-bar-line
  make-tick-bar-line
This simplifies user-customized bar-lines, which are build with
ly:round-filled-box.
No need to copy/paste the blot-calculating procedure anymore.