[pygame] UI: Window Borders

[Kris Schnee <kschnee@xxxxxxxxxx>]

One feature I like in a UI is the ability to use custom frames for 
windows. I did a version of this feature before, inspired by the frames 
from "Chrono Cross," especially the wooden one. 
(<http://www.rpgclassics.com/shrines/psx/cc/frames.shtml>)

My version is kind of ugly though. Two themes for it are shown in these 
old shots.
<http://kschnee.xepher.net/pics/darkside060717.jpg>
<http://kschnee.xepher.net/pics/shiningsea060629-0.png>

These use tiny GIFs (eg. 32x8) and just tile them along the edges of a 
window, then draw four corner pieces. So if a top piece is 10 pixels 
wide and the window is 103 pixels wide, 3 pixels of an 11th segment get 
drawn. If someone wants to use big obvious patterns, though, that effect 
would look bad. Is there an obvious better way of handling window 
borders? I could stretch whatever frame pieces are provided, but that'd 
cause distortion. Of course there's the option of not using fancy 
picture borders, but that's more limited than I'd like.

Kris