The idea is that pseudo-transparency should behave like real transparency as
much as possible. To achieve this, we now render the bar the same way in both
cases. The only part where pseudo-transparency differs is at the very end, where
the rendered bar is captured and composited against the desktop background
image. This should ensure that both modes behave the same.
This reverts some behaviour differences introduced by the pseudo-transparency
implementation. The new implementation is much closer to the
non-pseudo-transparent case and thus keeps original behaviour.
For the new method we simply fill the bar with the background image fetched from
the root window if in pseudo-transparent mode, otherwise we do nothing. This
means that everything will work as in the fully-transparent mode.
The systray only supports pseudo transparency (real transparency would require
much larger changes) so the real transparency should only be used for the bar itself.
We now take the bar position that the window manager gives us instead of trying
to calculate it ourselves. This is more correct when multiple bars are attached
to the same edge, as the window manager may move some of them in that
case (assuming override redirect is not enabled)
We need to fetch the outer area from the root window, not just the inner area
because we paint the background below the borders as well.
This has the nice effect of supporting semi-transparency for borders as well.
atoi, atof and so on have undefined behavior if anything goes wrong. We
now use strto*, but without error checking. In most places overflows and
the like *should* not happen. String to number conversions are only used
when reading data from other applications or from the config, if another
application gives unparsable strings or too large numbers, then most
likely there is something wrong with that application. If the error
comes from the user config, then the user has to live with values
provided by strto* on error (which are very reasonable)
Fixes#1201
Fixes#759 by only drawing text background when its color is different from the background color of the bar itself.
Explicitly setting a module's background to `background-0` now stops working.
The changes introduced in 389bae2669 to
address #551 did not consider the left border
Now center modules are centered regardless of border (left or right)
settings or tray position
Fixes#672
This tries to mimic the old renderer's behavior as closely as possible.
In the absence of any information, DPI is assumed to be 96x96. DPI can
be configured on a per-bar basis using the configuration key "dpi".
To use the DPI configuration from Xresources (if built with support),
one can specify the following in the bar config:
dpi = ${xrdb:Xft.dpi:96}
