Despite being able to properly lay out a font given an x, y to draw it
from (i.e. letters will hang below the base line as they should) I am
unable to figure out how to compute the lowest possible position so
that I can offset the font from its bounding box. In other words I
need to find out where the origin point is within the bounding box for
at least one letter.
I am aware of face->bbox and face->height but can't figure out the
computation to figure out how far I should raise all characters so
that the bottom of the lowest character (maybe a "g") will be just
above the horizontal axis.
```C
float x = 0.0f + 1.0f / window_width * (current.bearing_x), // bearing x.
y = 0.0f - 1.0f / window_height * (current.height -
current.bearing_y); // height - bearing y.
float w = 1.0f / window_width * (a.advance_x / 64), // this seems
to be too far.
h = 1.0f / window_height * (a.advance_y / 64);
```
The above will draw everything assuming the vertical origin is zero,
and some letters will end up below it.
Cheers,
R0b0t1
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