68698b4201
Summary: This change finds the screen for a touch screen device based on: * number available screens * output name defined on the touch screen device * internal screen * and physical size The id of the screen is stored in the Device allowing to adjust the touch points accordingly. This means instead of transferring to the combined display size the touch points are transferred into the output space and the position of the output is added. Thus in a multi screen system the touch points are properly mapped to the output. Furthermore the screen orientation is passed to the Device and a calibration matrix is set accordingly. Thus a transformed screen has the touch screen transformed accordingly. Please note that this only affects libinput on Wayland and not on X11! The x11 standalone platform needs to gain similar code. Reviewers: #kwin, #plasma Subscribers: plasma-devel, kwin Tags: #kwin Differential Revision: https://phabricator.kde.org/D8748
152 lines
4.2 KiB
C++
152 lines
4.2 KiB
C++
/********************************************************************
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KWin - the KDE window manager
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This file is part of the KDE project.
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Copyright (C) 2015 Martin Gräßlin <mgraesslin@kde.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************/
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#include "screens_drm.h"
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#include "drm_backend.h"
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#include "drm_output.h"
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namespace KWin
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{
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DrmScreens::DrmScreens(DrmBackend *backend, QObject *parent)
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: Screens(parent)
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, m_backend(backend)
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{
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connect(backend, &DrmBackend::screensQueried, this, &DrmScreens::updateCount);
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connect(backend, &DrmBackend::screensQueried, this, &DrmScreens::changed);
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}
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DrmScreens::~DrmScreens() = default;
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void DrmScreens::init()
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{
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updateCount();
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KWin::Screens::init();
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emit changed();
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}
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QRect DrmScreens::geometry(int screen) const
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{
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const auto outputs = m_backend->enabledOutputs();
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if (screen >= outputs.size()) {
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return QRect();
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}
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return outputs.at(screen)->geometry();
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}
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qreal DrmScreens::scale(int screen) const
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{
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const auto outputs = m_backend->enabledOutputs();
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if (screen >= outputs.size()) {
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return 1;
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}
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return outputs.at(screen)->scale();
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}
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QSize DrmScreens::size(int screen) const
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{
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const auto outputs = m_backend->enabledOutputs();
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if (screen >= outputs.size()) {
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return QSize();
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}
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return outputs.at(screen)->geometry().size();
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}
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void DrmScreens::updateCount()
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{
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setCount(m_backend->enabledOutputs().size());
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}
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int DrmScreens::number(const QPoint &pos) const
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{
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int bestScreen = 0;
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int minDistance = INT_MAX;
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const auto outputs = m_backend->enabledOutputs();
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for (int i = 0; i < outputs.size(); ++i) {
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const QRect &geo = outputs.at(i)->geometry();
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if (geo.contains(pos)) {
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return i;
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}
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int distance = QPoint(geo.topLeft() - pos).manhattanLength();
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distance = qMin(distance, QPoint(geo.topRight() - pos).manhattanLength());
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distance = qMin(distance, QPoint(geo.bottomRight() - pos).manhattanLength());
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distance = qMin(distance, QPoint(geo.bottomLeft() - pos).manhattanLength());
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if (distance < minDistance) {
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minDistance = distance;
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bestScreen = i;
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}
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}
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return bestScreen;
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}
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QString DrmScreens::name(int screen) const
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{
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const auto outputs = m_backend->enabledOutputs();
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if (screen >= outputs.size()) {
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return Screens::name(screen);
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}
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return outputs.at(screen)->name();
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}
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float DrmScreens::refreshRate(int screen) const
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{
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const auto outputs = m_backend->enabledOutputs();
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if (screen >= outputs.size()) {
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return Screens::refreshRate(screen);
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}
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return outputs.at(screen)->currentRefreshRate() / 1000.0f;
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}
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QSizeF DrmScreens::physicalSize(int screen) const
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{
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const auto outputs = m_backend->enabledOutputs();
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if (screen >= outputs.size()) {
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return Screens::physicalSize(screen);
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}
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return outputs.at(screen)->physicalSize();
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}
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bool DrmScreens::isInternal(int screen) const
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{
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const auto outputs = m_backend->enabledOutputs();
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if (screen >= outputs.size()) {
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return false;
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}
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return outputs.at(screen)->isInternal();
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}
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bool DrmScreens::supportsTransformations(int screen) const
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{
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const auto outputs = m_backend->enabledOutputs();
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if (screen >= outputs.size()) {
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return false;
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}
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return outputs.at(screen)->supportsTransformations();
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}
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Qt::ScreenOrientation DrmScreens::orientation(int screen) const
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{
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const auto outputs = m_backend->outputs();
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if (screen >= outputs.size()) {
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return Qt::PrimaryOrientation;
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}
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return outputs.at(screen)->orientation();
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}
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}
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