kwin/plugins/qpa/screen.cpp
David Edmundson 8ef184e1cd Implement high DPI support in KWin QPA
Summary: Basically just a copy and paste from the relevant Qt Wayland
parts.

Reviewers: #plasma

Subscribers: plasma-devel

Tags: #plasma

Differential Revision: https://phabricator.kde.org/D5172
2017-04-28 10:23:14 +01:00

82 lines
2.1 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 "screen.h"
#include "platformcursor.h"
#include "wayland_server.h"
#include <KWayland/Client/output.h>
namespace KWin
{
namespace QPA
{
Screen::Screen(KWayland::Client::Output *o)
: QPlatformScreen()
, m_output(QPointer<KWayland::Client::Output>(o))
, m_cursor(new PlatformCursor)
{
// TODO: connect to resolution changes
}
Screen::~Screen() = default;
int Screen::depth() const
{
return 32;
}
QImage::Format Screen::format() const
{
return QImage::Format_ARGB32_Premultiplied;
}
QRect Screen::geometry() const
{
return m_output ? QRect(m_output->globalPosition(), m_output->pixelSize() / m_output->scale()) : QRect(0, 0, 1, 1);
}
QSizeF Screen::physicalSize() const
{
return m_output ? m_output->physicalSize() : QPlatformScreen::physicalSize();
}
QPlatformCursor *Screen::cursor() const
{
return m_cursor.data();
}
QDpi Screen::logicalDpi() const
{
static int force_dpi = qEnvironmentVariableIsSet("QT_WAYLAND_FORCE_DPI") ? qEnvironmentVariableIntValue("QT_WAYLAND_FORCE_DPI") : -1;
if (force_dpi > 0) {
return QDpi(force_dpi, force_dpi);
}
return QPlatformScreen::logicalDpi();
}
qreal Screen::devicePixelRatio() const
{
return m_output ? (qreal)m_output->scale() : 1.0;
}
}
}