Re: pango arabic ft2 module

[Alex Larsson <alexl redhat com>]

On Thu, 4 Oct 2001, Christian wrote:

> Alex Larsson writes:
>  > On Thu, 4 Oct 2001, Christian wrote:
>  > 
>  > > 
>  > 
>  > So you use GtkFB? Cool. Does it work? Is it a commercial project?
> 
> Yes I'm using it and I am very satisfied with it. I didn't found any
> problems in the core GTK libraries (I snapshotted the CVS a couple of
> weeks ago). The project is to use a low end 486 with framebuffer to
> show HTML pages (STPC system-on-chip). I ported cschtml widget to GTK2
> and pangoized text output (it must show arabic text). I used fonts
> from windoze and all works great. I'm cleaning up code, strating to
> send out patches (I started with pango :-) and a full release will
> appear on the site of the company that employs me. I really didn't
> found bugs, only NYIs. It takes quite a lot to render complex pages
> (up to 10 seconds) but's it's ok for the application, showed data
> don't change very frequently but I need HTML.

Have you tried GtkHTML2? I've pangoized that, and it seems to work fine.
 
>  > I get very little feedback from people using GtkFB, so i have no idea if 
>  > anyone is using it at all.
>  > 
> 
> I do and have other plans ..... I'm looking about porting mozilla to
> GTK2 and so also framebuffer .... it's a biiiiiig project, and I'm not
> sure I can handle it. Well I prefer GTK to QT and GTKfb will be better
> than QTe.  If you need some specific testing or someone to write code
> maybe I can help.

Talk to blizzard redhat com about porting mozilla to Gtk2. He has made 
noises about that.
 
>  > > pango_ft2_get_face (PangoFont      *font,
>  > >                     PangoFT2Subfont subfont_index)
>  > > {
>  > > 
>  > > ....
>  > > 
>  > >   if (subfont_index==0) subfont_index++;
>  > >   if (subfont_index < 1 || subfont_index > ft2font->n_fonts)
>  > > 
>  > > ......
>  > >   
>  > > 
>  > > may you point me to the right solution?
>  > 
>  > Isn't subfont_index 0 (glyph 0) only used for the unknown glyph? Were do 
>  > you need this?
>  > 
> 
> it's not directly called by the arabic-ft2 module, but another
> function in pangoft2 gets called with an subindex of 0 implicitly. I
> can send you the backtrace from the coredump if you need it.

Yes please.
 
>  > We would also like to somehow integrate the different Freetype backends 
>  > (Xft and Ft2) so that they can use common modules in some ways. We haven't 
>  > really discussed this yet though.
>  > 
> 
> Actually much of the code is the same ..... I just stealed most of it
> :-)

That is the reason we want to share it.

/ Alex