kwin/plugins/platforms/drm/screens_drm.h
Martin Flöser 68698b4201 [libinput] Find screen for touch screen devices and calibrate accordingly
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
2017-12-23 10:18:55 +01:00

54 lines
1.7 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/>.
*********************************************************************/
#ifndef KWIN_SCREENS_DRM_H
#define KWIN_SCREENS_DRM_H
#include "screens.h"
namespace KWin
{
class DrmBackend;
class DrmScreens : public Screens
{
Q_OBJECT
public:
DrmScreens(DrmBackend *backend, QObject *parent = nullptr);
virtual ~DrmScreens();
void init() override;
QRect geometry(int screen) const override;
int number(const QPoint &pos) const override;
qreal scale(int screen) const override;
QSize size(int screen) const override;
void updateCount() override;
QString name(int screen) const override;
float refreshRate(int screen) const override;
QSizeF physicalSize(int screen) const override;
bool isInternal(int screen) const override;
bool supportsTransformations(int screen) const override;
Qt::ScreenOrientation orientation(int screen) const override;
private:
DrmBackend *m_backend;
};
}
#endif