Re: Accented Capital letters getting clipped

[Behdad Esfahbod <behdad behdad org>]

On 13-05-24 01:45 AM, Parth Kanungo wrote:
> Thanks Behdad, Using ink_rect solves the issue.
>
> However, this results in clipping of the right-most glyph while rendering on
> FT_Bitmap. 
> Hence, I am using height from ink_rect and width from logical_rect.

You are probably ignoring rect.x and just looking at rect.width...


> Do you think that this is the right approach ?
>
>
> On Thu, May 23, 2013 at 9:42 PM, Behdad Esfahbod <behdad behdad org
> <mailto:behdad behdad org>> wrote:
>
>     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/
>
>
>
>
> -- 
> Parth 

-- 
behdad
http://behdad.org/