This adds a new listbox with a single row, as per
mockups, to switch to the Night Light page; and
also adds a back button to switch back to the main
page.
On small window sizes the ButtonBox can overflow the panel. This is
especially true in single display mode when no other elemnts prevent
shrinking to e.g. 360px width on phones. Use the ComboBox introduced in
632cb3c907 in these cases.
For that we introduce cc_display_settings_refresh_layout() to refresh
the layout when the folded state changes. This can later on be used for
more tweaks to shrink to smaller sizes.
This makes scaling work e.g. on the Librem 5's built-in display which
has a 720x1440 resolution. It's scaled to 200% by default so currently
hitting the 100% button makes it scale to 100% but then the 200% button
vanishes due to assumed too small resultion. Fix that by allowing for
360x720 as well.
When swicthing configurations, we should ensure that the selected scale
is valid. This is complicated by the fact that it depends on other
factors whether we need a single global scale or not.
Try to retain the scale that monitors have if possible. If that does not
work, try to use the old scale of the primary monitor everywhere. This
should result in a good behaviour in most situations.
Co-authored-by: Stéphane Travostino <steph@combo.cc>
Fixes: #1038
The UI rebuilding code may change the configuration type, which in turn
can trigger a UI rebuild. This should not be done if we are already
updating the UI (but must be done otherwise, as that means the user has
chosen to change the configuration).
Fixes: #1141
Make the panel class provide a cancellable that will be cancelled when the panel
is destroyed. Panel implementations can use this and not have to mangage the
cancellable themselves. Consolidate cases where panels had multiple cancellables
that were all being used for this behaviour.
Some devices have panels with a native resolution in portrait mode. In
these cases the monitor will likely be used in landscape mode.
Accept the modes as if they are landscape rather than portrait. A
further improvement would be to restrict the orientation setting.
Fixes#639
This may happen under some conditions. Possibly due to a race condition
(i.e. we did not receive any configuration from mutter yet) or also if
we are not running on GNOME.
Add guards for NULL configuration. This configuration is never
applicable and mostly clears the UI.
Fixes: #604
This introduces a GtkStack to handle the pages; move the
current panel to be the "displays" page; and adds the
Night Light page as "night-light".
A stack switcher was added, as a header widget, to control
the stack.
https://gitlab.gnome.org/GNOME/gnome-control-center/issues/533
In almost all cases, the configuration will be "valid" in the sense that
g-c-c can represent it in the UI. However, there are cases like
mirroring setups with three monitors that we do not allow.
In case that the user has such a configuration, ensure that the
configuration we represent is actually valid according to our
expectations. This should not affect normal use cases, but allows users
to recover again if the configuration is broken for some reason.
Fixes#383
When the user has more than two monitors, then they can disable each
monitor separately. If the user creates an invalid configuration because
they disabled the last monitor, then enable a different one immediately.
The new logic selects a single configuration type rather than detecting
which types can be considered valid. This simplifies the UI rebuilding
somewhat, but also changes some internal behaviour. We will now always
be in the correct mode internally, even if the UI may not represent this
change (i.e. with more than two monitors it always looks the same).
We should show unusable monitors in the monitor selection drop-down
list. So always add them to the combobox and add the code to make the
switch to enable them insensitive.
We should only enforce single mode, when we have exactly two monitors
and the two button UI is used to switch between them in single mode.
Move the code to ensure the single configuration into the relevant
callback handler, rather than trying to solve this globally.
We need to also set rebuilding while updating some other UI elements.
Make it into a counter to allow for recursive setting.
Note that additional checks for rebuilding will be added in later
commits.
It generally makes more sense to reset the resolution of a monitor after
we switch configuration types. The main case where this is relevant is
switching from a mirror configuration (CLONE) to either join or single.
In this case, higher resolutions for monitors may become available.
Note that this might be annoying to some users, because there may be
monitors reporting a lower "preferred" resolution than the highest
supported resolution. There is little we can do though, as always
selecting the highest resolution doesn't seem like a much better
approach.
The new code had a bug in that it only ever enabled the first monitor
rather than all usable ones. Fix this by removing the erroronuous break.
Also clarify the comment a bit that the current solution is not really
ideal as it may result in invalid configurations (i.e. we enable more
outputs than are possible with the number of available CRTCs).
Fixes#418
As per the binding that we have between the list store and the combo-box, when
the first element is added to the list-store, the combo box set this value as
the selected-index, and this leads to a call to cc_display_monitor_set_primary
which set the first-listed monitor as primary and unset the real primary monitor.
To avoid this, just ignore the binding when rebuilding the UI, since in this
phase control-center should just reflect the actual state without changing
anything.
Fixes https://gitlab.gnome.org/GNOME/gnome-control-center/issues/419
In the case where the user plugged/unplugged a screen, we could run into
the case where we would first enable and then disable the same output.
This could potentially result in an invalid configuration.
Prevent this by not disabling the output if no switch happened.
The dialog tried to retain the current configuration mode. However,
doing so means that we end up in the wrong mode in some situation (e.g.
opening the dialog with two displays but only one enabled).
Fix this by always selecting a configuration mode. This potentially
switches the user from "join" to "single" if only one monitor is left.
However, the user has no way to do this manually, so no unexpected UI
change will happen.
We were converting the floating point numbers to integers using a cast,
which causes them to be always rounded down. The result is that a
monitor may be too small by a pixel, creating broken configurations.
Also fix the same issue when calculating whether a scale should be
supported.
See https://gitlab.gnome.org/GNOME/mutter/issues/412
Anything that affects the size of the screen (or its existance) may
result in invalid configurations. Do a small effort in trying to fix
this by calling into the snapping algorithm for the modified monitor.
Addresses issue #247 to a large extend.
Previously, low resolutions were hidden from the control center
because when such display modes are activated, GNOME is unusable;
many important UI elements do not fit on the screen at all.
https://bugzilla.gnome.org/show_bug.cgi?id=626822
This was removed in c0f686bb0f
without explanation; reinstate it here.
Also prevent the scaling from being selected or activated if the
effective scaled resolution would result in an equivalently low
resolution being used.
We need to re-sync the scale button scale when updating the state
dynamically. Otherwise changing the resolution will always show a scale
of 100% (first item) rather than the actual active one.
The visibility is explicitly controlled in the functions that create the
rows in question. This regression was introduced in commit 3d177b67
(display: Don't use gtk_widget_show_all).
