Elminating masktype for raster images and going for 1.2.1

[Bernhard Reiter]

Thinking about this a bit, I think we should eliminate the
choice of masktypes for raster layers.
And I have started doing the first changes in SVN
right away.

Rational: We can always do alpha with wx>=2.6.
The choice of masktypes and saving it in a .thuban file was
only possible with thuban-1.1.x series and other development versions.
Alpha handling will always do what the user wants, so we can actually simplify
the code here. And simplicity if possible is always good. :)
The user base of Thuban 1.2.0 is not that big and I really cannot
think of an usage case for mask and bitmap is actually wanted.

Objections?

I'd rather go sooner for Thuban 1.2.1 release as there have been
a few significant problems fixed.
Still I would want to at least add a thuban-1.2.dtd without the maptype
attribute, some compatibility code loading the old stuff.
I am wondering how much of the move the unicode we should do
or if at all we should just integrate Bram's new pyshapelib.

What do you think?


Bernhard

-- 
Managing Director - Owner: www.intevation.net      (Free Software Company)
Germany Coordinator: fsfeurope.org. Coordinator: www.Kolab-Konsortium.com.
Intevation GmbH, Osnabrück, DE; Amtsgericht Osnabrück, HRB 18998
Geschäftsführer Frank Koormann, Bernhard Reiter, Dr. Jan-Oliver Wagner
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