Re: I cannot figure out where to put the baseline...

[David Turner]

HI Paul,

What about using the yMax of the global bounding box ?
(after scaling it), as in

  FT_MulFix( face->global_bbox.yMax, face->size->metrics.y_scale );

to get the value in 26.6 units..

Hope this helps,

- David



"Pedriana, Paul" a écrit :
> 
> I cannot figure out where to place the baseline
> from the FreeType documentation. Once I know
> where to place the baseline, it is simple enough
> to calculate where to blit the character and where
> to advance the pen.
> 
> If you want to write a text editor, you need to know
> the distance from the top of the full character cell
> down to the baseline (shown as "???" below). I cannot
> find out how to figure out this value from the FreeType
> documentation. It certainly is not equal to the Y bearing
> of any character, and it certainly isn't equal to the
> ascender for the character (since Y bearing is often
> greater than the ascender).
> 
> So how do I find out what it is? The documentation doesn't
> seem to tell you how to do this rather important thing.
> 
> ----------------------------------  -|
>                                      |
>                                      |
>          *         -|                |
>         * *         |                |
>        *   *        |                | ??? <---------
>       *     *       |Y Bearing       |
>      *********      |                |
>     *         *     |                |
>    *           *    |                |
>  +*             *  -|               -|
> 
> -------------------------------------
> 
> +   => Current pen position at baseline.
> ??? => Unknown distance that I need to know.