> On 2009-03-30 01:29:17, Aaron Seigo wrote:
> > an early decision was not to hack things into plasma. if someone wants 
> > translucent panels and other windows, use composition. it's the only way to 
> > do it properly. i have no interest in seeing plasma become a pile of hacks 
> > held together with chewing gum and baling wire. i left kicker's code base 
> > behind because of that "hey, look what we can do!" mentality that went into 
> > that code over the years.
> > 
> > now, this doesn't actually work in all cases (e.g. themes with solid 
> > panels), doesn't provide real translucency (e.g. see windows between the 
> > panels and the desktop), i can only imagine how this does (or doesn't) work 
> > with hiding panels and it pollutes the libplasma API with incomprehensible 
> > and very this-hack-specific methods.
> > 
> > i appreciate what you are trying to accomplish, but it's simply not in line 
> > with plasma's design principles.

i also should address this comment:

"All other major linux Desktop-Environments support transparent panels without 
composition"

what other software does wrong is completely inconsequential.

these other systems took this route at the time because at the time there was 
no compositing support in X11. and even when compositing did arrive, those code 
bases were so old and ossified and the compositing support was so crappy that 
nearly nobody bothered to even try taking advantage of compositing.

but we're not writing the desktop of 5 years ago, and we're not trying to mimic 
the mistakes of 5 years ago, either.

that's why, despite everyone else having a stupid xembed based system tray, 
we're doing something new and smarter.
that's why, despite everyone else shipping plain run command dialogs while 
people make bad clones of Quicksilver as third party add-ons, we work on 
krunner as a default component.

so the "but others did it" reason is no reason at all. one needs to look at 
what a given thing is with fresh eyes and in the context of modern systems. and 
i'm not about to wait until we're the last ones doing it wrong to make the 
right decisions. being the first to make those decisions is not easy, and sure, 
being the Nth person afterwards to follow along and makes those decisions is 
easy. but it's a lot more rewarding to be the first ones to do something better 
than to only chase after other people's taillights once it is safe to do so.


- Aaron


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On 2009-03-30 00:54:44, David Nolden wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> http://reviewboard.kde.org/r/472/
> -----------------------------------------------------------
> 
> (Updated 2009-03-30 00:54:44)
> 
> 
> Review request for Plasma.
> 
> 
> Summary
> -------
> 
> Many people can not, or do not want to use composition. A semi-transparent 
> panel highly increases the appeal of a Desktop, and there currently is only 
> very few plasma themes available that have a nice-looking panel without 
> transparency enabled.
> 
> All other major linux Desktop-Environments support transparent panels without 
> composition(KDE 3.x, GNOME, and others), and since usually the only thing 
> that needs to be visible through the panel is the Desktop itself, using a 
> composition-less approach does not have much disadvantage here.
> 
> Here's I'm proposing a patch to achieve  this in a relatively clean way: The 
> panel is painted and updated as if it was a plasmoid on the Desktop itself, 
> grabbing the painted area plasma-internally directly from the  underlying 
> desktop-view. The corresponding area of the panel is updated whenever the 
> desktop is repainted, which means that animated plasmoids partially hidden 
> under the panel, animations like the desktop-fading, moving plasmoids 
> partially under the panel, etc. "just work".
> 
> Result: A nice looking panel for everyone, less work for theme designers. 
> Please don't leave those behind who don't want or can not use desktop 
> composition!
> 
> (Note: If you try this out, it doesn't work with all themes, since some 
> themes seem to have no alpha-information in the non-composition case).
> 
> 
> Diffs
> -----
> 
>   trink/KDE/kdebase/workspace/plasma/containments/mid-panel/panel.cpp 940781 
>   trink/KDE/kdebase/workspace/plasma/containments/panel/panel.cpp 940781 
>   trink/KDE/kdebase/workspace/plasma/shells/CMakeLists.txt 940781 
>   trink/KDE/kdebase/workspace/plasma/shells/desktop/desktopview.h 940781 
>   trink/KDE/kdebase/workspace/plasma/shells/desktop/desktopview.cpp 940781 
>   trink/KDE/kdebase/workspace/plasma/shells/desktop/panelview.h 940781 
>   trink/KDE/kdebase/workspace/plasma/shells/desktop/panelview.cpp 940781 
>   trink/KDE/kdebase/workspace/plasma/shells/desktop/plasmaapp.h 940781 
>   trink/KDE/kdebase/workspace/plasma/shells/desktop/plasmaapp.cpp 940781 
> 
> Diff: http://reviewboard.kde.org/r/472/diff
> 
> 
> Testing
> -------
> 
> 
> Thanks,
> 
> David
> 
>

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