Resizing GdkPixmap Images

[Al Morgan <mann2 qwest net>]

I want to be able to resize, and if possible, rotate images stored in a 
GdkPixmap.  Are there any functions to do this?  Also, (this could apply 
if no functions exist, and I have to write them myself), how are the 
images stored in a GdkPixmap struct?

I'm writing a map editor or sorts, and I need to do this to accomplish 
various zoom levels, and not having to have a differnt image stored for 
every zoom level.

Concerning this: what would be the best way to store and display a map?  
Let's say the entire map would take up a 10,000 x 10,000 pixel area.  
Would it be best to parse it all beforehand, and just put the huge 
canvas into a scrolled window?  Or would it be better to have a smaller 
canvas, and draw onto it just the section of the map that is being 
displayed?

Thanks.

  Al Morgan [ mann2 qwest net ]

p.s. (moderator: my other message got sent from the wrong account.  
ignore it.)