kwin/colorcorrection/colorcorrectdbusinterface.cpp

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[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 12:43:12 +03:00
/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright 2017 Roman Gilg <subdiff@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*********************************************************************/
#include "colorcorrectdbusinterface.h"
#include "colorcorrectadaptor.h"
#include "manager.h"
namespace KWin {
namespace ColorCorrect {
ColorCorrectDBusInterface::ColorCorrectDBusInterface(Manager *parent)
: QObject(parent)
, m_manager(parent)
{
connect(m_manager, &Manager::configChange, this, &ColorCorrectDBusInterface::nightColorConfigChanged);
new ColorCorrectAdaptor(this);
QDBusConnection::sessionBus().registerObject(QStringLiteral("/ColorCorrect"), this);
}
QHash<QString, QVariant> ColorCorrectDBusInterface::nightColorInfo()
{
return m_manager->info();
}
bool ColorCorrectDBusInterface::setNightColorConfig(QHash<QString, QVariant> data)
{
return m_manager->changeConfiguration(data);
}
void ColorCorrectDBusInterface::nightColorAutoLocationUpdate(double latitude, double longitude)
{
m_manager->autoLocationUpdate(latitude, longitude);
}
}
}