This commit allows the theme designer to just enable and disable the
effect (enable=true). If no color values are set, values are picked
based on the background color. This essentially restores the hardcoded
values in some other places, and makes them available as sensible
defaults to other themes.
Also, make sure colors are read before the effect is applied (as we need
the new bg color to decide whether it's light or dark).
From its api docs:
This method allows Plasma to enable and disable the background
contrast effect for a given theme, improving readability. The
value is read from the "enabled" key in the "ContrastEffect"
group in the Theme's metadata file.
The configuration in the metadata.desktop file of the theme
could look like this (for a lighter background):
[ContrastEffect]
enabled=true
contrast=0.45
intensity=0.45
saturation=1.7
this ports revision c03052935b082 on kdelibs
improve cache file dropping
* fix regression: version the image cache file name
* version the svg elements
* drop old svg elements files
* respond to changes at runtime by watching the theme's metadata.desktop for changes
* move creation of the svg elements file into ThemePrivate::useCache()
REVIEW:115397
This aligns the config files and groups, and adds a KDirWatch in the
shared Plasma::Theme private object in order to nofity when the
configured theme changes.
It's a bit rough, doesn't cover all corner cases and needs polishing.
The QQmlPropertyMap isn't moved with this commit, this needs a bit more
changing, so we do a separate one for that, once the more trivial stuff
is moved out.
This removes the last dependency from plasma-framework on kde4support.
This change is a bit more involved than other kde4support removals because
QSharedPointer does not provide a count() method. I therefore reworked the code
to store the SharedSvgRenderer as a QWeakPointer in s_renderers, making it
possible to detect when the last one goes away by creating a QWeakPointer guard
in SvgPrivate::eraseRenderer().
REVIEW: 114912
Saves quite a lot of roundtrips to the XServer. Most important we
fetch the atom only once which means we don't have to refetch when
checking the property notify events.
REVIEW: 112445
