BeShadowed

Since the Oxygen decoration paints it's own shadows, the shadow plugin got pretty stepchilded.

a) it's horribly imperformant (if I play a video it's causing ~2/3 of the kwin cpu load...)
b) it's broken with XRender & translucency
c) it could use some more options ;-)
d) The heavy exponential shadow is maybe nice, but neither realistic (real shdows cast rather sharp borders), nor effective (most of the HUGE shadow is so much translucent that you can hardly see anything of it...)

So I started to work on it.
Not much of a help for oxygen, but most other decorations (QtCurve has deco shadows as well), consistent and (hopefully) less artefact prone ;-P

Ultimately this should go back upstream but testing outside the release cycle won't hurt - i assume :)

Version 0.1 performance is up to decoration shadows for one window (heavy repaints in a video) but doesn't scale as good, there also might be artefacts left (didn't see any though) but good enough for a first version, i hopefully can speed up things even more

ehe... sorry. now the proper file :-\

0.7
---
- add property support to force shadows
- add launcher script to run chromium with this property
- add flag for translucent decorations (aurorae, oxygen) to fix "corner" artefact (will be autodetected with 4.5, but not "implemented" yet)

0.6
---
- fix skip conditions (override property, undecorated ARBG windows)

0.5
---
- fix remaining artefact (with fading windows that exceed the screenarea)
- avoid some useless shadow paints with translucent windows (though quite a corner case)
- add new shot to show off tronhalo mode ;-)

0.4
---
- fix tiny window shadows better ;-)
- fix property system*
- optionally skip maximized windows (on by default, makes sense depending on your desktop setup)
- skip fullscreen windows (e.g. when not redirecting)

* the shadows are supposed to support a _KDE_SHADOW_OVERRIDE property - but they didn't ;-P
set with e.g.:
xprop -f _KDE_SHADOW_OVERRIDE 32a -set _KDE_SHADOW_OVERRIDE 1
unset with:
xprop -f _KDE_SHADOW_OVERRIDE 32a -remove _KDE_SHADOW_OVERRIDE

0.3
----
- even more performance ;-)
- Halo mode
- "fixed" shadow painting for tiny windows and large fuzzyness

0.2
----
++performance;
--artefacts;
* custom colors for active windows (but using plain QPalette::Shadow as default for both and the moment - we'll have to use sth. like additive painting for _real_ halos -> 0.3 ;-)