Commit Graph

12 Commits (master)

Author SHA1 Message Date
Vlad Zahorodnii 4ce853e8e4 Prettify license headers 2020-08-07 19:57:56 +00:00
Vlad Zahorodnii 1fb9f6f13a Switch to SPDX license markers
The main advantage of SPDX license identifiers over the traditional
license headers is that it's more difficult to overlook inappropriate
licenses for kwin, for example GPL 3. We also don't have to copy a
lot of boilerplate text.

In order to create this change, I ran licensedigger -r -c from the
toplevel source directory.
2020-08-07 19:57:56 +00:00
Aleix Pol aef354b655 Make sure attribute is defined
Summary: Was running it on valgrind, saw it complain.

Test Plan: Valgrind doesn't complain anymore

Reviewers: #kwin, davidedmundson

Reviewed By: #kwin, davidedmundson

Subscribers: kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D27324
2020-02-12 16:19:45 +01:00
Vlad Zahorodnii 1565910c40 [nightcolor] Expose transition timings to d-bus
Summary:
These timings can be useful for the night color applet. For example, it
could show "Next transition will start at XXX" or something like that.

Reviewers: #kwin, davidedmundson

Reviewed By: #kwin, davidedmundson

Subscribers: kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D26666
2020-01-15 21:15:26 +02:00
Vlad Zahorodnii e728460ac6 [nightcolor] Use a dedicated class for detection of system clock changes
Summary:
The ClockSkewNotifier provides a convenient way for monitoring system
clock changes. One of the key ideas was to hide platform details from
users of the class. This allows us to add a QTimer fallback path for
operating systems that don't provide anything to detect system clock
changes.

In long term, I would like to move the new class to Frameworks.

Reviewers: #kwin, davidedmundson

Reviewed By: #kwin, davidedmundson

Subscribers: davidedmundson, kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D25962
2020-01-07 17:12:14 +02:00
Vlad Zahorodnii 33f46f6d6c [nightcolor] Expose some properties to d-bus
Summary:
Currently, in order to retrieve the current screen color temperature
applied to all screen as well other attributes of night color manager,
one has to call nightColorInfo() periodically. This goes against well
established patterns in d-bus world. It is recommended to expose a
bunch of d-bus properties rather than have a method that returns all
relevant properties stored in a JSON object.

The ugliest thing about this patch is that a lot of code is duplicated
to emit the PropertiesChanged signal. Unfortunately, QtDBus doesn't
take care of this and we are left with only two options - either do
weird things with QMetaObject or manually emit the signal. I have
picked the second option since it's more comprehensible and less magic
is going on, but I have to admit that the chosen approach is ugly.

I hope that "Qt 6 will fix it."

CCBUG: 400418

Reviewers: #kwin, davidedmundson

Reviewed By: #kwin, davidedmundson

Subscribers: kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D25946
2020-01-07 17:12:14 +02:00
Vlad Zahorodnii 5bec89ac90 [nightcolor] Introduce inhibition API
Summary:
The new API allows to block Night Color temporarily. This can be useful
for applications such as video games and plasma applets.

CCBUG: 400418

Test Plan: Called inhibit() and uninhibit() from D-Feet.

Reviewers: #kwin, davidedmundson

Reviewed By: #kwin, davidedmundson

Subscribers: kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D25786
2020-01-07 17:12:14 +02:00
Vlad Zahorodnii c265c7f2c6 [nightcolor] Use local time in Automatic and Location mode
Summary:
Currently Night Color doesn't handle time zones very well. For example,
if the user's time zone is UTC-8, then computed timings of sunrise and
sunset (in UTC) will be a bit gibberish as sunset occurs before sunrise
rather than vice versa.

This change switches relevant parts of Night Color to local time in
order to fix expectations about the order of morning and evening in
updateSunTimings() method as well to simplify the code a bit (dealing
with UTC and local time can be painful sometimes).

CCBUG: 412211

Reviewers: #kwin, romangg

Reviewed By: #kwin, romangg

Subscribers: romangg, kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D24153
2019-09-26 11:31:01 +03:00
Vlad Zagorodniy 684b4b635e Use more traditional doxygen style
Summary:
So far we were following a bit unique and rare doxygen comment style:

    /**
     * Contents of the comment.
     **/

Doxygen comments with this style look balanced and neat, but many people
that contribute to KWin don't follow this style. Instead, they prefer
more traditional doxygen comment style, i.e.

    /**
     * Contents of the comment.
     */

Reviewing such changes has been a bit frustrating for me (so selfish!)
and for other contributors.

This change switches doxygen comment style in KWin to a more traditional
style. The main reason for doing this is to make code review process easier
for new contributors as well us.

Reviewers: #kwin, davidedmundson

Reviewed By: #kwin, davidedmundson

Subscribers: kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D22812
2019-07-29 22:06:19 +03:00
Vlad Zagorodniy eafe7aee65 [colorcorrection] Add "Constant" mode
Summary:
Currently, the Night Color manager supports three operation modes:

* Automatic: in this mode, screen color temperature is computed based on
the current position of the Sun. In order to calculate sunrise & sunset
times, the manager needs coordinates of the user, which are provided by
Plasma;

* Location: this mode is very similar to the Automatic, except one minor
detail: user needs to provide his/her/their location. This mode can be
very useful if coordinates provided by Plasma are incorrect;

* Timings: unfortunately we can't compute timings of the Sun for people
living near Earth poles. This mode allows the user to specify timings of
sunrise and sunset as well the transition time.

This change introduces another mode, called Constant. With this mode the
screen color temperature is constant throughout the day. The new mode
can be useful for people wishing constant screen color temperature or
just for people living near Earth's North or South poles.

Reviewers: #kwin, davidedmundson

Reviewed By: #kwin, davidedmundson

Subscribers: ngraham, davidedmundson, romangg, kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D21948
2019-07-22 00:30:39 +03:00
Vlad Zagorodniy b18351669a [colorcorrection] Introduce toggle Night Color shortcut
Summary:
The new shortcut can be useful if a user wants to quickly disable the
Night Color manager for a brief moment.

FEATURE: 409083

Reviewers: #kwin, davidedmundson, romangg

Reviewed By: #kwin, davidedmundson, romangg

Subscribers: romangg, ngraham, broulik, davidedmundson, kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D22287
2019-07-09 18:43:21 +03:00
Roman Gilg 82d2860469 [colorcorrection] Night Color - blue light filter at nighttime
With Wayland KWin needs to provide certain services, which were provided
before that by the Xserver. One of these is gamma correction, which includes
the - by many people beloved - functionality to reduce the blue light at
nighttime. This patch provides the KWin part of that. It is self contained,
but in the end will work in tandem with a lib in Plasma Workspace and a KCM
in Plasma Desktop, which can be used to configure Night Color.

* Three modi:
** Automatic: The location and sun timings are determined automatically
   (location data updates will be provided by the workspace)
** Location: The sun timings are determined by fixed location data
** Timings: The sun timings are set manually by the user
* Color temperature value changes are smoothly applied:
** Configuration changes, which lead to other current values are changed
   in a quick way over a few seconds
** Changes on sunrise and sunset are applied slowly over the course of few
   minutes till several hours depending on the configuration
* The current color value is set immediately at startup or after suspend
  phases and VT switches. There is no flickering.
* All configuration is done via a DBus interface, changed values are tested
  on correctness and applied atomically
* Self contained mechanism, speaks directly to the hardware by setting the
  gamma ramps on the CRTC
* Currently working on DRM backend, extensible to other platform backends in
  the future
* The code is written in a way to make the classes later easily extendable to
  also provide normal color correction, as it's currently done by KGamma on X

Test Plan:
Manually with the workspace parts and added integration tests in KWin using
the virtual backend.

BUG:371494

Reviewers: #kwin, graesslin

Subscribers: kwin, plasma-devel, #kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D5928
2017-12-11 10:58:40 +01:00