[Fontconfig] A question about font styles
keithp at keithp.com
Tue Mar 8 07:40:59 EST 2005
Around 14 o'clock on Mar 7, Owen Taylor wrote:
> Would you count it as expected that:
> desc = pango_font_face_describe (face);
> pango_font_description_set_weight (desc, PANGO_WEIGHT_BOLD);
> /* Use desc */
> Ignores the call to set_weight? (because describe() sets some
> "face name" field)
(did you mean "style name"?)
Hmm. Sequence doesn't exist in fontconfig. I think that might make a
difference for the user...
If you think of the style name as restricting the available variants to the
selected style, or selecting a sub-family with the 'postscript name', then
the 'set_weight' call is no more ignored than if face was already black;
it's requesting the 'bold' variant of 'Cloister Old Style Roman' which
doesn't happen to have a bold variant.
Consider the fonts I just got -- named Cloister Old Style Roman, Cloister
Old Style Italic, Cloister Old Style Bold and Cloister Old Style Bold
Italic. All of these advertised a single style named 'Roman' (the humor
of a 'Roman' 'Italic' font clearly escaped the publisher).
If the 'description' returned is used by the application to present
information to the user and to select fonts, then we have a problem as it
should contain the style name so the user can read it, but it shouldn't
have the style name as a constraint on the selection. Perhaps those two
notions could be separated somehow?
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