Re: Optimization question

[Daniel Carrera <dcarrera math toronto edu>]

Thanks.  I am not sure that I completely follow your explanation.  Maybe
you can help me out.

> Since you are painting numbers, the fastest would be to do a prerendering
> of all the numbers and store these in GdkPixbuf's in memory.

Who do you do that? I haven't found any documentation on that.  I don't
know how to do that.

Is this what you mean?:

my $number = Gtk::Gdk::ImlibImage->load_image("7.xpm")

> The conversion of an altitude reading to a number to display would then
> just need to use a series of gdk_pixbuf_copy_area() to draw each of the
> numbers.

That looks like C to me.  How would I do that with Perl (or do you think
that I should do an XS extension?).


> Using any kind of external file representation like png, is just a waste
> of time.
>
> You can do the same thing with GdkImlib images, btw, that are currently
> required for the canvas. You don't need to destroy your objects btw. A
> simple canvas_image->set("image"->$image) repaints the image, if I'm
> not mistaken.
>
> Regards,
> Dov


Thanks a lot.
One more question:  Am I missing some documentation from somewhere?  The
only documentation that I have found consists of a man page
(Gnome::reference) and the Gtk-Perl home page which has a tutorial and
sample code.

Is there any other source of documentation?

Thanks again,
Daniel.