Re: gEDA-dev: HID/Draw question wrt Undo

[DJ Delorie <dj-at-NOSPAMdelorie_dot_com>]

The lesstif HID always uses a full redraw to update the screen; it
does this only when the X event queue is empty (i.e. the program is
"idle").  This gives you a cleaner, more responsive, screen, which is
however not updating as many times a second as it could.

The Gtk HID doesn't do a full update all the time, it uses the
incremental drawing to keep the screen up to date as you do things.

I'm not exactly sure what the core thinks it's doing, but in general,
it should draw what it thinks it needs to draw when it thinks it needs
redrawing, and let the HID ask for more if more is needed.  That way,
you get to watch autoroute do its thing even with the lesstif hid.


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