renegadex has asked for the wisdom of the Perl Monks concerning the following question:

hi! can i use the Gtk2::Gdk::PixbufLoader to load an image from a file? I wanted to create thumbnails for many pictures and this takes up alot of time. So what I need to do is incrementally load those images, at the same time, the user can do other things (click a button) without waiting for the images to load.

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Re: Incremental Image Loading
by Anonymous Monk on Nov 18, 2008 at 08:18 UTC
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Re: Incremental Image Loading
by zentara (Cardinal) on Nov 18, 2008 at 13:26 UTC
    To load a pixbuf from file: 
    
#get raw image data
#my $image_data = `cat image.png`;  # easy shell out
my $image_data;
open (FH,"< image.png");
read( FH, $image_data, -s FH );
close FH;

my $pixbuf = do {
        my $loader = Gtk2::Gdk::PixbufLoader->new();
        $loader->write( $image_data );
        $loader->close();
        $loader->get_pixbuf();
    };

#you can then make your thumbnails with the pixbuf methods
my $pixbuf_smaller = $pixbuf->scale_simple(50,50,'bilinear');     
my $img_smaller = Gtk2::Image->new_from_pixbuf($pixbuf_smaller);

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