Re: [Lilypond-auto] Issue 4014 in lilypond: Patch: Add an expert font tree interface

[lilypond]

Comment #22 on issue 4014 by address@hidden: Patch: Add an expert  
font tree interface
https://code.google.com/p/lilypond/issues/detail?id=4014

It's orthogonal, but surely related. This patch is on allowing access to a  
fine-grained font selection, e.g. to offer alternatives for fonts which  
miss a bold italic or if you want small caps instead; Urs' work is about a  
nice interface to setting fonts in the first place.

Since the internals are functional, what's missing here is exactly a nice  
interface. My preferred solution would be exactly what Urs is researching:  
Have the default font tree with the fonts shipped with LilyPond (+/- the  
ongoing debate on sans and mono faces in the default repo, and allow for  
understandable overrides like

\paper {
  %% this should be the default, unless overridden by the user, to adapt to  
the staff size set with #(set-global-staff-size)
  \setFontScale = #(/ staff-height pt 20)

  %% default bold is not bold enough
  \setFont #'sans #'upright #'bold = "Futura Extra Black"

  %% with optional scaling factor additional to global staff size scaling  
(defaults to 1)
  \setFont #'sans #'italic #'bold = #'("DejaVu Sans Bold Oblique" 1.129)

  %% maybe define a new font-family symbol for a font used in lyrics
  \setFont #'lyrics #'upright #'normal = "MyPrettyLyricsFont Condensed"
  %% to be used with \override LyricText.font-family = #'lyrics

  %% finally, sane defaults for overriding entire families, in this case
  %% expanding to Book / Oblique / Bold / Bold Oblique for the ('upright  
/ 'italic) x ('normal / 'bold)-pairs,
  %% again with (optional) scaling
  \setFont #'typewriter = #'("DejaVu Sans Mono" 1.129)

  %% and, last but not least, a similar approach to music fonts
  \setMusicFont #'music = "scorlatti"
  \setMusicFont #'brace = "ross"
}


So yes, it's definitively going towards the same direction...

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