Re: [Gzz] 28th (Benja)

[Benja Fallenstein]

Tuomas Lukka wrote:

> > - Make (0,0) the upper left corner in all coordsys.
> > - Always pass w and h everywhere where it's needed explicitly, even down 
> > to the level of vobs.
> >    
>
> No, since we want w and h to be interpolated.

Ok, right. How about we pass w and h through all the views (whereever 
needed), creating a second coordsys down at the cell view level; this 
second coordsys would be the transformation (1,1) -> (w,h)? (I'm not 
terribly excited by coordsys=transformation, but I do think this would 
make things saner.)

I.e., the cell view would get a coordsys, w and h, and it would create a 
new coordsys:

int width_height_coordsys = scene.coords.coordsys(0, 0, 0, 0, w, h);
scene.matcher.addSub(into, width_height_coordsys, A_KEY);

That's trickery and bit uglish (because we use different parents in the 
matcher and the coorder) but ok for now, I think.

> > That means that all vobs need to be changed not to assume implicit w and 
> > h through their coordsys, but I think that's ok. It would make things a 
> > little less convenient for symmetrical things like rectangular 
> > backgrounds, but not terribly-- 0/0.5/1 instead of -1/0/1 is not so 
> > terribly hard to understand and compute. But it would make A LOT of 
> > things much more sane.
> >
> > Does that sound ok?
> >    
>
> This we can certainly do. Now or alpha4?

Now, I think. Things have gotten so terribly complicated that I think we 
need some simplification to be sure things are relatively bug-free and 
extensible enough for alpha3.

- Benja