kwin/colormanager.cpp
Vlad Zahorodnii 64ad9a61d8 Introduce ColorManager component
This change introduces a new component - ColorManager that is
responsible for color management stuff.

At the moment, it's very naive. It is useful only for updating gamma
ramps. But in the future, it will be extended with more CMS-related
features.

The ColorManager depends on lcms2 library. This is an optional
dependency. If lcms2 is not installed, the color manager won't be built.

This also fixes the issue where colord and nightcolor overwrite each
other's gamma ramps. With this change, the ColorManager will resolve the
conflict between two.
2020-12-13 23:53:33 +02:00

76 lines
1.8 KiB
C++

/*
SPDX-FileCopyrightText: 2020 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "colormanager.h"
#include "abstract_output.h"
#include "colordevice.h"
#include "main.h"
#include "platform.h"
#include "utils.h"
namespace KWin
{
KWIN_SINGLETON_FACTORY(ColorManager)
class ColorManagerPrivate
{
public:
QVector<ColorDevice *> devices;
};
ColorManager::ColorManager(QObject *parent)
: QObject(parent)
, d(new ColorManagerPrivate)
{
connect(kwinApp()->platform(), &Platform::outputEnabled, this, &ColorManager::handleOutputEnabled);
connect(kwinApp()->platform(), &Platform::outputDisabled, this, &ColorManager::handleOutputDisabled);
}
ColorManager::~ColorManager()
{
s_self = nullptr;
}
QVector<ColorDevice *> ColorManager::devices() const
{
return d->devices;
}
ColorDevice *ColorManager::findDevice(AbstractOutput *output) const
{
auto it = std::find_if(d->devices.begin(), d->devices.end(), [&output](ColorDevice *device) {
return device->output() == output;
});
if (it != d->devices.end()) {
return *it;
}
return nullptr;
}
void ColorManager::handleOutputEnabled(AbstractOutput *output)
{
ColorDevice *device = new ColorDevice(output, this);
d->devices.append(device);
emit deviceAdded(device);
}
void ColorManager::handleOutputDisabled(AbstractOutput *output)
{
auto it = std::find_if(d->devices.begin(), d->devices.end(), [&output](ColorDevice *device) {
return device->output() == output;
});
if (it == d->devices.end()) {
qCWarning(KWIN_CORE) << "Could not find any color device for output" << output;
return;
}
ColorDevice *device = *it;
d->devices.erase(it);
emit deviceRemoved(device);
delete *it;
}
} // namespace KWin