kwin/backends/drm/screens_drm.cpp
2015-05-19 09:49:37 +02:00

106 lines
3 KiB
C++

/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2015 Martin Gräßlin <mgraesslin@kde.org>
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 "screens_drm.h"
#include "drm_backend.h"
namespace KWin
{
DrmScreens::DrmScreens(DrmBackend *backend, QObject *parent)
: Screens(parent)
, m_backend(backend)
{
connect(backend, &DrmBackend::screensQueried, this, &DrmScreens::updateCount);
connect(backend, &DrmBackend::screensQueried, this, &DrmScreens::changed);
}
DrmScreens::~DrmScreens() = default;
void DrmScreens::init()
{
KWin::Screens::init();
updateCount();
emit changed();
}
QRect DrmScreens::geometry(int screen) const
{
const auto outputs = m_backend->outputs();
if (screen >= outputs.size()) {
return QRect();
}
return outputs.at(screen)->geometry();
}
QSize DrmScreens::size(int screen) const
{
const auto outputs = m_backend->outputs();
if (screen >= outputs.size()) {
return QSize();
}
return outputs.at(screen)->size();
}
void DrmScreens::updateCount()
{
setCount(m_backend->outputs().size());
}
int DrmScreens::number(const QPoint &pos) const
{
int bestScreen = 0;
int minDistance = INT_MAX;
const auto outputs = m_backend->outputs();
for (int i = 0; i < outputs.size(); ++i) {
const QRect &geo = outputs.at(i)->geometry();
if (geo.contains(pos)) {
return i;
}
int distance = QPoint(geo.topLeft() - pos).manhattanLength();
distance = qMin(distance, QPoint(geo.topRight() - pos).manhattanLength());
distance = qMin(distance, QPoint(geo.bottomRight() - pos).manhattanLength());
distance = qMin(distance, QPoint(geo.bottomLeft() - pos).manhattanLength());
if (distance < minDistance) {
minDistance = distance;
bestScreen = i;
}
}
return bestScreen;
}
QString DrmScreens::name(int screen) const
{
const auto outputs = m_backend->outputs();
if (screen >= outputs.size()) {
return Screens::name(screen);
}
return outputs.at(screen)->name();
}
float DrmScreens::refreshRate(int screen) const
{
const auto outputs = m_backend->outputs();
if (screen >= outputs.size()) {
return Screens::refreshRate(screen);
}
return outputs.at(screen)->currentRefreshRate() / 1000.0f;
}
}