[cairo] Font-related question...

Behdad Esfahbod behdad at behdad.org
Thu Mar 21 13:33:24 PDT 2013

On 13-03-21 04:20 PM, Philip Schneider wrote:
> Greetings -
> The doc for cairo_scaled_font_create() suggests that the font_matrix can be
> used to set the point size N (by making the matrix contain a scale of N). But
> there's also cairo_set_font_size, which seems to act to replace the matrix one
> has set in the creation call. If my application makes use of the same face,
> but at say 3 font sizes (10, 16, 24), would it be better to create and retain
> three separate instances (each at one of the three desired sizes), or just
> create a single instance and use cairo_set_font_size() whenever I need to
> switch between sizes?

Normally you shouldn't need to use cairo_scaled_font_create().  Cairo does
that automatically for you.  cairo_set_font_size() is a convenience wrapper
for cairo_set_font_matrix().


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