Re: gdtk_draw_text deprecated , what use instead of it ?

[Olexiy Avramchenko <olexiy irtech cn ua>]

Paul Pogonyshev wrote:

> Tom Liu wrote:
>  
>
> > You should use pango, read the FAQ came with GTK document,there is an
> > example over there.
> >    
>
> I once raised this issue but got no answer.  Consider a chess board:
>
>   a b c d e f g h
> 8                  8
> 7                  7
> 6                  6
> 5                  5
> 4                  4
> 3                  3
> 2                  2
> 1                  1
>   a b c d e f g h
>
> To draw the labels with Pango one would need 32 layout structures, unless
> i miss something.  Ok, moving further.  I'm writing a program that is an
> interface for the game of go.  Standard go board (goban) is 19x19 and so
> i would have to use 76 Pango layouts, which is simply ridiculous.
Hmm, why not to use pango_layout_set_text() and exactly one layout ? 
Have 76 layouts around looks weird, of course...

> I think deprecating gdk_draw_text() was a hastily decision.  I can see
> absolutely no point in creating a layout for drawing a single letter (or
> even two, like "15") at a certain position.  I understand that Pango
> provides better support for unicode, can break lines and so on.  But if
> i simply don't need any of its features?
If you dont need pango - use raw X lib functions. gdk_draw_text() has no 
significant advantages over XDraw[Image]String[16].

> It seems to me it was better to _recommend_ using Pango layouts for most
> purposes, rather than deprecating gdk_draw_text() completely.  You cannot
> say that any characters drawn need to be text.  And Pango layouts are
> there to handle exactly text, not single characters.
>
> Performance issues mentioned here are also a good reason to resurrect
> gdk_draw_text().If no one can point me to a nice and simple way of drawing 76+ labels
> scattered on a widget using Pango layouts, i think i'll have to use
> gdk_draw_text().  And i can't say i like it this way, because i
> currently compile my program with *_DISABLE_DEPRECATED flags defined.
What CPU usage 'top' shows when you run your program ? If its a 
user-driver program that outputs some lines of text after key pressed or 
mouse moved you can still use pango with ease - system will not suffer. 
The main benefits (as for me) from pango - scalable fonts support and 
i18n support.

   Olexiy