[Lilypond-auto] [LilyIssues-auto] [testlilyissues:issues] #5324 \abs-fon

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[Lilypond-auto] [LilyIssues-auto] [testlilyissues:issues] #5324 \abs-fontsize and set-global-staff-size in books

Date:

Thu, 16 Aug 2018 11:03:52 -0000

Needs: -->
Patch: new --> countdown
Type: -->

[issues:#5324] \abs-fontsize and set-global-staff-size in books

Status: Started
Created: Sat May 19, 2018 06:22 PM UTC by Torsten Hämmerle
Last Updated: Thu Aug 16, 2018 10:51 AM UTC
Owner: Torsten Hämmerle
Attachments:

abs-fontsize-original.png (35.6 kB; image/png)

Issue 5324: \abs-fontsize and set-global-staff-size in books

The font buffering hashtable will provide an outdated LilyPond
scale factor after changing global staff size between books. Mainly
\abs-fontsize concerned, because \fontsize will usually not match
a Pango font-size used in a differently scaled book and fresh fonts
will have to be loaded anyway.

The straight-forward solution is to simply apply #ly:restet-all-fonts
from within #set-global-staff-size.

http://codereview.appspot.com/341450043

When creating several \books of different staff-sizes set by #(set-global-staff-size ...), markup in absolute font sizes (\abs-fontsize) will mess up spacing (font-metrics) in the subsecquent books.

(reported by David Sumbler: http://lilypond.1069038.n5.nabble.com/Maintaining-font-size-regardless-of-staff-size-td213007.html)

#(ly:set-option 'debug-skylines #t)

\header {
  title = \markup \concat {
        \abs-fontsize #21 "X let’s see how long X"
        \with-color #red \abs-fontsize #21 "XX"
      }
}

#(set-global-staff-size 18)
 \book { { b'1^\markup \abs-fontsize #14 "Test" } }

#(set-global-staff-size 26)
 \book { { b'1^\markup \abs-fontsize #14 "Test" } }

#(set-global-staff-size 10)
 \book { { b'1^\markup \abs-fontsize #14 "Test" } }

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