Runtime decision for QSvgRenderer workarounds

[Jakob Petsovits]

On Tuesday, 27. May 2008, Jakob Petsovits wrote:
> - KIconLoader and KIconTheme #undef KDE_QT_SVG_RENDERER_FIXED.
>   This mainly means SVGs are not used at all unless no PNG icon exists
>   at all.
>
> The latter effect is kinda uncomfortable, as many SVG themes ship with PNGs
> for small sizes, and when an application demands a 128x128 version of that
> icon then the most appropriate PNG (say, 22x22) is scaled up to that size.
> Or it's not scaled at all and ridiculously small in comparison to other
> icons (imagine a list of files in Dolphin).

Visual demonstration:

- without patch:
http://files.petsovits.at/jakob/qsvgrenderer-workaround/compiletime.png

- with patch:
http://files.petsovits.at/jakob/qsvgrenderer-workaround/runtime.png

(Actually, both of those have been taken with the patch, I just changed 
Tango's index.theme in order to get the first one.)

Applications requesting fixed-size icons will get something like the kalarm 
icon in those screenshots (although this case has another cause - that is,
a missing Oxygen icon).

Shooting screens for the greater good,
  Jakob