Re: gEDA: ANN: A new gerbv for windows

[Juergen Haas <juergenhaas-at-NOSPAMgmx_dot_net>]

On Thursday 21 October 2004 16:42, Stefan Petersen wrote:
> On Tue, 19 Oct 2004, Scott Dattalo wrote:
> > On Tue, 19 Oct 2004, Stefan Petersen wrote:
> > > Hello!
> > >
> > > This short message is to tell all interested that a new release of
> > > gerbv for windows is out. The difference compared to the previous is: *
> > > No graphical result of doing measurements, only in the box below the
> > > image.
> > > * Added file init.scm so now projects work.
> > >
> > > It is available from:
> > > http://sourceforge.net/project/showfiles.php?group_id=33921&package_id=
> > >131878
> > >
> > > We are having problems with the speed of the graphical functions
> > > inherited from GTK-WIN32. Is there anyone having any general trick or
> > > hint on how to improve the speed?
> >
> > Which version of gtk+ are you using? We had issues with slow re-paints
> > and sluggish performance in gtk+-2.2.x. However, gtk+-2.4.7 seems just
> > fine.
we are using 2.4.7 unfortunately we draw a lot and esp. we dont check if the 
part is really visible...
I talked to Ales who apparently has implemented into gschem that only the 
things which are visible are actually rendered:-)

>
> I don't know which version of GTK is used. But I appreciate the
> information and I assume Juergen is going to take this into account.
>
> I hoped for a "the trick of all tricks", but it seems like there is no
> such thing. I should have used another library 3 years ago ;-) But who
> had a windows port in their mind at that time. Not I at least.
No tricks available I am afraid, apart from e.g. the use of gdk_draw_lines() 
instead of multiple calls to gdk_draw_line().
>
> > You could try downloading and playing with opening windows in the gpsim
> > port to windows:
> >
> > http://gpsim.sourceforge.net/snap.php
>
> Yes, a good idea.
I will as soon as time allows...

regards 
                  -Juergen