Re: Pango-WARNING failed to choose a font

[Behdad Esfahbod <behdad behdad org>]

Your solution does not make any sense.  Your pango installation is broken if
pango-querymodules doesn't show anything.

On 10/16/10 00:21, William Mok wrote:
> Thanks.
> 
> Pango ignores pangox.aliases, probably pangox.aliases is a legacy thing.
> I tried pango-querymodules, it doesn't work.
> 
> --------------
> I figured out a way to solve the problem, it is not too hard.
> 
> I figured out why pango cannot find the font.
> 
> In pango-context.c, there is a function called pango_context_init.
> The line "pango_font_description_set_family_static (context->font_desc,
> "serif");" sets the font family but it is not setting to something that
> is installed on my system.
> 
> Using the command ' fc-list : family |grep -i serif', I found out that I
> have the following serif families:
> 
> DejaVu LGC Serif
> FreeSerif
> Bitstream Vera Serif
> Microsoft Sans Serif
> Liberation Serif
> Luxi Serif
> DejaVu Serif,DejaVu LGC Serif Condensed
> 
> ----------
> 
> So, I just need to modify the line to point to the exact family name.
> For example, if I want to use FreeSerif which is installed on my system,
> then modify the line:
> 
> pango_font_description_set_family_static (context->font_desc, "FreeSerif");
> 
> -----------------------
> static void
> pango_context_init (PangoContext *context)
> {
>   context->base_dir = PANGO_DIRECTION_WEAK_LTR;
>   context->resolved_gravity = context->base_gravity = PANGO_GRAVITY_SOUTH;
>   context->gravity_hint = PANGO_GRAVITY_HINT_NATURAL;
> 
>   context->set_language = NULL;
>   context->language = pango_language_get_default ();
>   context->font_map = NULL;
> 
>   context->font_desc = pango_font_description_new ();
>   /* pango_font_description_set_family_static (context->font_desc,
> "serif"); */
>   pango_font_description_set_family_static (context->font_desc,
> "FreeSerif");
>   pango_font_description_set_style (context->font_desc, PANGO_STYLE_NORMAL);
>   pango_font_description_set_variant (context->font_desc,
> PANGO_VARIANT_NORMAL);
>   pango_font_description_set_weight (context->font_desc,
> PANGO_WEIGHT_NORMAL);
>   pango_font_description_set_stretch (context->font_desc,
> PANGO_STRETCH_NORMAL);
>   pango_font_description_set_size (context->font_desc, 12 * PANGO_SCALE);
> }
> ----------------
> 
> Recompile pango and probably any libraries or applications that have
> dependencies on pango and the font loading problem will be resolved.
> 
> -------------
> 
> --- On *Sat, 10/9/10, Sid Kapoor /<sidkapoor2000 gmail com>/* wrote:
> 
> 
>     From: Sid Kapoor <sidkapoor2000 gmail com>
>     Subject: Re: Pango-WARNING failed to choose a font
>     To: "Behdad Esfahbod" <behdad behdad org>
>     Cc: "William Mok" <wmok6600 yahoo com>, gtk-i18n-list gnome org
>     Date: Saturday, October 9, 2010, 2:05 AM
> 
>     Hi William,
>      
>     Did you set the environment properly ?
>      
>     Try some steps as mentioned below:
>      
>     1) export PANGO_RC_FILE=/lib/pango/pangorc
>     2) Give the path of your pango.modules file in pangorc
>     3) Check your pango.modules file. Is your pango module path properly
>     mentioned in the pango.modules file ?
>     4) If not then generate a fresh pango.modules file by running a
>     binary pango-querymodules.
>     5) Also check your pangox.aliases file. Is your new font mentioned
>     in that file ?
>      
>     Thanks,
>     Siddharth Kapoor
> 
>     On Tue, Sep 21, 2010 at 11:24 PM, Behdad Esfahbod <behdad behdad org
>     </mc/compose?to=behdad behdad org>> wrote:
> 
>         Try strace'ing to see what files pango is trying to access and
>         go from there.
>          There's not much else I can suggest.
> 
>         behdad
> 
>         On 09/21/10 13:53, William Mok wrote:
>         > If you know the part of the code that I should investigate,
>         then I can
>         > see if I can do some debugging.
>         >
>         > Which file or which functions should I pay attention? Thanks.
>         >
>         > --- On *Tue, 9/21/10, Behdad Esfahbod /<behdad behdad org
>         </mc/compose?to=behdad behdad org>>/* wrote:
>         >
>         >
>         >     From: Behdad Esfahbod <behdad behdad org
>         </mc/compose?to=behdad behdad org>>
>         >     Subject: Re: Pango-WARNING failed to choose a font
>         >     To: "William Mok" <wmok6600 yahoo com
>         </mc/compose?to=wmok6600 yahoo com>>
>         >     Cc: gtk-i18n-list gnome org
>         </mc/compose?to=gtk-i18n-list gnome org>
>         >     Date: Tuesday, September 21, 2010, 10:48 AM
>         >
>         >     On 09/21/10 13:45, William Mok wrote:
>         >     > Thanks.
>         >     >
>         >     > fc-match returns
>         >     > Vera.ttf: "Bitstream Vera Sans" "Roman"
>         >     >
>         >     > Apparently pango does not like this,
>         >     >
>         >     > (gtk-demo:3274): Pango-WARNING **: failed to choose a
>         font, expect
>         >     ugly
>         >     > output. engine-type='PangoRenderFc', script='latin'
>         >     >
>         >     > (gtk-demo:3274): Pango-WARNING **: failed to choose a
>         font, expect
>         >     ugly
>         >     > output. engine-type='PangoRenderFc', script='common'
>         >     >
>         >     > **** so, how do I get fc-match to return something else?
>         Or what
>         >     kind of
>         >     > font I need to install?
>         >
>         >     Donno.  Something wrong with your pango installation.
>         >
>         >     behdad
>         >
>         >
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> 
> 
> 
>