From: Hidetoshi NAGAI <nagai@...>
Date: 2003-08-20T00:43:20+09:00
Subject: Re: Tk: non-default font 16 x slower

Hi, 

From: Richard Zidlicky <rz@linux-m68k.org>
Subject: Re: Tk: non-default font 16 x slower
Date: Tue, 19 Aug 2003 20:40:55 +0900
Message-ID: <20030819105527.GA2197@linux-m68k.org>
> very good tip, but why is font creation so exceedingly slow
> anyway? 

Ruby/Tk recommends to distinguish between (1) widgets have the 
*SAME* font, and (2) widgets coincidentally have the fonts with 
same properties. That is the reason of creating a named font 
when a font name is given to 'font' option. When properties of 
a TkFont object are changed, displayed font images of all widgets 
given the TkFont object are changed. However, it needs large cost 
to create a new named font. So, Ruby/Tk is slow if you give the 
'font' option with a font name to each of many widgets. 
-- 
                                  Hidetoshi NAGAI (nagai@ai.kyutech.ac.jp)