Re: GTKImage displays after long latency

[Barry Demchak <vendors tpsoft com>]

Hi, Owen --

No luck ... the thing reports 400x400 (pixels) ...

... and when I render it in Internet Explorer, the rendering is instant.

Any other ideas??

At 07:05 AM 8/31/2005, Owen Taylor wrote:
> On Tue, 2005-08-30 at 14:41 -0700, Barry Demchak wrote:
> > Hi --
> >
> > This is my first GTK application, and I'm "simply" trying to display an 
> SVG
> > rendering in a window. I can do this OK, but it appears that there is a
> > latency of ~2000ms between assigning the pixbuf into the GTKImage widget
> > and actually seeing the result on the screen.
> >
> > FYI, the scribble example works fine on my system ... so I don't think
> > there's something wrong with the system ... more likely a gap in my GTK
> > knowledge.
> >
> > Here's what I'm doing:
> >
> >    GdkPixbuf *pb = rsvg_pixbuf_from_file_at_size("circle.svg",-1,-1,NULL);
> >    gtk_image_set_from_pixbuf((GtkImage*) mapimage, pb);
> >
> > And before that, this is what I did:
> >
> >    GtkWidget *mapimage = NULL;
> >    GdkPixbuf *pb = rsvg_pixbuf_from_file_at_size("circle.svg",-1,-1,NULL);
> >    mapimage = gtk_image_new_from_pixbuf(pb);
> >
> > I can see that scribble does things quite differently ...
> >
> > ... should I be trying to get librsvg to render into something besides a
> > new pixbuf??
> >
> > (I'm quite sure that the librsvg call is finished, and the
> > gtk_image_new_from_pixbuf has finished ... and *then* it takes 2 
> seconds to
> > show up on the screen.)
>
> Could librsvg be rendering your image at an enormous size?
>
> You might want to gdk_pixbuf_get_width(), gdk_pixbuf_get_height()
>
> Regards,
>                                         Owen