[perl-Gnome2-Rsvg] Use the correct image size in the example

[Torsten Schönfeld <tsch src gnome org>]

commit af6014a798d81275e50974c5942f037ae17f1cd5
Author: Torsten Schönfeld <kaffeetisch gmx de>
Date:   Mon May 17 23:57:21 2010 +0200

    Use the correct image size in the example

 examples/render-to-cairo.pl |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/examples/render-to-cairo.pl b/examples/render-to-cairo.pl
index f596288..37d0573 100644
--- a/examples/render-to-cairo.pl
+++ b/examples/render-to-cairo.pl
@@ -11,8 +11,10 @@ while (<SVG>) {
 close(SVG);
 $handle -> close() or die("Could not parse '$svg'");
 
-# FIXME: Use get_dimensions() once available.
-my $surface = Cairo::ImageSurface -> create("argb32", 100, 100);
+my $dim = $handle -> get_dimensions();
+my $surface = Cairo::ImageSurface -> create("argb32",
+                                            $dim->{width},
+                                            $dim->{height});
 my $cr = Cairo::Context -> create($surface);
 $handle -> render_cairo($cr);
 $surface -> write_to_png(basename($svg) . '.png');