[nebula-dev] Tiled canvas widget

[Hallvard Trætteberg <hal@xxxxxxxxxxx>]

Hi,

I was considering the structure of GeoMap yesterday and concluded it 
consisted of three main parts:
- canvas tiled with images
- async provision/downloading of images
- view management including coordinates and zooming levels

Only the third of these is really specific for GeoMap. A tiled canvas 
with panning and zooming is useful for many applications, particularly 
grid-based games like sokoban. Async provision/downloading of images is 
useful to improve performance. (I can imaging the gallery widget 
needs/has something similar).

Does it make sense to factor out generic code? Does the Nebula project 
consider cross-component refactoring and code sharing?

Hallvard