visual map editor

[Jeremy Ford <linux intercom net>]

I want to make a map editor using gnome/gtk+. The map editor will have
pixmap tiles and the user will drag the tiles on to a "canvas" and build a
map. This map will be used by another program.

I have read through all the gtk docs and can't find any real examples or
widgets that are capable of doing this. If somebody could please offer
some guidance or point me in the right direction I would appreciate it.

Thank You
Jeremy