Remove the hack to create most Makefile variables on Unix

I've just discovered, quite by accident, a new undocumented feature of
qmake: it can write Makefile variables. So let's use this feature
where we can instead of our hack.  The only thing is that it prepends
an "EXPORT_" prefix, so we can't use it for a variable like $(prefix)
that Linux distributions are expected to try to modify during make
install.

I've verified that the feature remains in Qt 5.x.

Signed-off-by: Thiago Macieira <thiago@macieira.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Make the calculated ceiling be preferences aware

This patch only adds preference-awareness for the ceiling.

Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Always calculate deco data, independent of preferences

This is a better way since we can enable / disable the deco by changing
the preferences later, and that will not need to recalculate everything
just because a polygon was set to invisible.

Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Show gradient factor.

The gradient factor is shown with this patch, but the correct position
should still be adjusted.

Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Fix positioning of many text items.

Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>