Re: Optimization question

On Wed, Feb 06, 2002 at 09:49:53AM -0500, Daniel Carrera wrote:
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")

Yes. That's the way, though I think that I would rather keep all
the pictures in one single image. This is exactly how my perl/gtk
program abc blocks works. See:

The following is a modified version of part of its code:

     $big_card = load_image Gtk::Gdk::ImlibImage($card_name);

     my $photo = $big_card->crop_and_clone_image($x0, $y0,
                                                 $width, $height);


You can create a gdk image like in $photo above, for each of your digits,
and store these e.g. in @digit_image .

You then create an CanvasImage for each of the numbers you want to display.
E.g. if you want to show:


Then 5 could be shown e.g. by $number_1, 6 by $number_2, etc where
$number_1 to $number_4 are CanvasImages that you placed at their desired

You can then choose the digits to show by doing:


to set the image of number1_image to the image showing a "3".  

I hope this is a bit clearer than my last message.


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