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