Re: Accented Capital letters getting clipped

[Behdad Esfahbod <behdad behdad org>]

On 13-05-23 06:01 AM, Parth Kanungo wrote:
> Hello,
>
> I am using Pango/FT2 to render a text that contains accented characters like
> 0x00C1 (accented A )  and 0x010C (a variety of C used in Czech language). 
>
> From my experiments, I figured that pango does not take into consideration the
> accent above the characters while calculating extents
> using pango_layout_iter_get_line_extents().  Correct me, if I am wrong.


        pango_layout_iter_get_line_extents(itr, NULL, &lineRect);

Instead of getting the logical rect (last arg), try the ink rect (middle one).

behdad

> Here is what I did.
>
> 1. I rendered the layout using pango_ft2_render_layout(). The accent got
> clipped from the characters in the first line, but were rendered successfully
> for the second line.
>
> 2. My application requires me to use line-by-line rendering. Thus, I rendered
> the second line of the layout using pango_ft2_render_layout_line(). The accent
> above the letters gets clipped (See output1.bmp).
>
> 3. I adjusted the baseLine by adding 5. I got output2.bmp,
>
> Hence, I have a reason to believe that extents calculated do not take into
> consideration the full height of the glyph. 
> Is this a known bug? Or, am I doing something wrong here?
>
> Thanks,
> -- 
> Parth 

-- 
behdad
http://behdad.org/