Re: Emacs and Gnome Canvas

[YAMAMOTO Mitsuharu]

>>>>> On Fri, 16 Jul 2010 19:38:43 +0200, Jan Djärv <address@hidden> said:

>> I think it means "inform the X server that a region needs to be
>> redrawn, as if it had just been exposed".  I don't know if X even
>> supports this idea, but I know it from Java:
>> <http://java.sun.com/j2se/1.5.0/docs/api/java/awt/Component.html#repaint%28int,%20int,%20int,%20int%29>.
>> That method arranges for a repaint to occur, but returns
>> immediately; the painting happens in response to the artificial
>> expose-like event created.  (Such events may then be intelligently
>> coalesced by the toolkit to paint larger areas in one pass.)

> Gtk+ has something similar, but raw X or Xt for that matter hasn't.
> Not that it would be very difficult for Emacs to implement it, but
> would it be worth it?  What should the tty-code do?

I don't think tty-code is affected.  The question "which part should
be updated" is common, and "how to update" is already under the
control of RIF.

                                     YAMAMOTO Mitsuharu
                                address@hidden