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99 lines
3.0 KiB
C++
99 lines
3.0 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_virtual.h"
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#include "virtual_backend.h"
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namespace KWin
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{
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VirtualScreens::VirtualScreens(VirtualBackend *backend, QObject *parent)
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: Screens(parent)
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, m_backend(backend)
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{
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}
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VirtualScreens::~VirtualScreens() = default;
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void VirtualScreens::init()
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{
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updateCount();
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KWin::Screens::init();
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connect(m_backend, &VirtualBackend::sizeChanged,
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this, &VirtualScreens::startChangedTimer);
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connect(m_backend, &VirtualBackend::outputGeometriesChanged, this,
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[this] (const QVector<QRect> &geometries) {
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const int oldCount = m_geometries.count();
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m_geometries = geometries;
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if (oldCount != m_geometries.count()) {
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setCount(m_geometries.count());
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} else {
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emit changed();
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}
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}
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);
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emit changed();
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}
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QRect VirtualScreens::geometry(int screen) const
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{
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if (screen >= m_geometries.count()) {
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return QRect();
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}
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return m_geometries.at(screen);
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}
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QSize VirtualScreens::size(int screen) const
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{
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return geometry(screen).size();
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}
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void VirtualScreens::updateCount()
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{
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m_geometries.clear();
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const QSize size = m_backend->size();
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for (int i = 0; i < m_backend->outputCount(); ++i) {
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m_geometries.append(QRect(size.width() * i, 0, size.width(), size.height()));
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}
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setCount(m_backend->outputCount());
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}
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int VirtualScreens::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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for (int i = 0; i < m_geometries.count(); ++i) {
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const QRect &geo = m_geometries.at(i);
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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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}
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