301 lines
6.7 KiB
C++
301 lines
6.7 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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SPDX-FileCopyrightText: 2013 Martin Gräßlin <mgraesslin@kde.org>
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SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "screens.h"
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#include <abstract_client.h>
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#include "abstract_output.h"
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#include <x11client.h>
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#include "cursor.h"
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#include "utils.h"
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#include "settings.h"
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#include <workspace.h>
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#include <config-kwin.h>
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#include "platform.h"
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#include "wayland_server.h"
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#ifdef KWIN_UNIT_TEST
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#include <mock_screens.h>
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#endif
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namespace KWin
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{
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Screens *Screens::s_self = nullptr;
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Screens *Screens::create(QObject *parent)
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{
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Q_ASSERT(!s_self);
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#ifdef KWIN_UNIT_TEST
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s_self = new MockScreens(parent);
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#else
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s_self = new Screens(parent);
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#endif
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Q_ASSERT(s_self);
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s_self->init();
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return s_self;
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}
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Screens::Screens(QObject *parent)
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: QObject(parent)
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, m_count(0)
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, m_current(0)
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, m_currentFollowsMouse(false)
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, m_maxScale(1.0)
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{
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// TODO: Do something about testScreens and other tests that use MockScreens.
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// They only make core code more convoluted with ifdefs.
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#ifndef KWIN_UNIT_TEST
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connect(kwinApp()->platform(), &Platform::screensQueried, this, &Screens::updateCount);
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connect(kwinApp()->platform(), &Platform::screensQueried, this, &Screens::changed);
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#endif
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}
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Screens::~Screens()
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{
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s_self = nullptr;
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}
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void Screens::init()
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{
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updateCount();
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connect(this, &Screens::countChanged, this, &Screens::changed, Qt::QueuedConnection);
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connect(this, &Screens::changed, this, &Screens::updateSize);
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connect(this, &Screens::sizeChanged, this, &Screens::geometryChanged);
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Settings settings;
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settings.setDefaults();
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m_currentFollowsMouse = settings.activeMouseScreen();
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emit changed();
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}
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QString Screens::name(int screen) const
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{
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if (AbstractOutput *output = findOutput(screen)) {
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return output->name();
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}
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return QString();
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}
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bool Screens::isInternal(int screen) const
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{
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if (AbstractOutput *output = findOutput(screen)) {
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return output->isInternal();
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}
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return false;
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}
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QRect Screens::geometry(int screen) const
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{
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if (AbstractOutput *output = findOutput(screen)) {
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return output->geometry();
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}
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return QRect();
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}
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QSize Screens::size(int screen) const
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{
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if (AbstractOutput *output = findOutput(screen)) {
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return output->geometry().size();
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}
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return QSize();
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}
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qreal Screens::scale(int screen) const
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{
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if (AbstractOutput *output = findOutput(screen)) {
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return output->scale();
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}
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return 1.0;
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}
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QSizeF Screens::physicalSize(int screen) const
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{
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if (AbstractOutput *output = findOutput(screen)) {
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return output->physicalSize();
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}
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return QSizeF();
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}
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float Screens::refreshRate(int screen) const
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{
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if (AbstractOutput *output = findOutput(screen)) {
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return output->refreshRate() / 1000.0;
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}
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return 60.0;
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}
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qreal Screens::maxScale() const
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{
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return m_maxScale;
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}
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void Screens::reconfigure()
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{
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if (!m_config) {
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return;
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}
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Settings settings(m_config);
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settings.read();
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setCurrentFollowsMouse(settings.activeMouseScreen());
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}
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void Screens::updateSize()
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{
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QRect bounding;
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qreal maxScale = 1.0;
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for (int i = 0; i < count(); ++i) {
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bounding = bounding.united(geometry(i));
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maxScale = qMax(maxScale, scale(i));
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}
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if (m_boundingSize != bounding.size()) {
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m_boundingSize = bounding.size();
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emit sizeChanged();
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}
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if (!qFuzzyCompare(m_maxScale, maxScale)) {
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m_maxScale = maxScale;
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emit maxScaleChanged();
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}
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}
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void Screens::updateCount()
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{
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setCount(kwinApp()->platform()->enabledOutputs().size());
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}
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void Screens::setCount(int count)
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{
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if (m_count == count) {
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return;
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}
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const int previous = m_count;
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m_count = count;
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emit countChanged(previous, count);
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}
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void Screens::setCurrent(int current)
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{
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if (m_current == current) {
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return;
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}
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m_current = current;
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emit currentChanged();
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}
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void Screens::setCurrent(const QPoint &pos)
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{
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setCurrent(number(pos));
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}
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void Screens::setCurrent(const AbstractClient *c)
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{
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if (!c->isActive()) {
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return;
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}
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if (!c->isOnScreen(m_current)) {
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setCurrent(c->screen());
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}
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}
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void Screens::setCurrentFollowsMouse(bool follows)
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{
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if (m_currentFollowsMouse == follows) {
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return;
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}
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m_currentFollowsMouse = follows;
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}
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int Screens::current() const
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{
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if (m_currentFollowsMouse) {
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return number(Cursors::self()->mouse()->pos());
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}
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AbstractClient *client = Workspace::self()->activeClient();
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if (client && !client->isOnScreen(m_current)) {
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return client->screen();
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}
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return m_current;
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}
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int Screens::intersecting(const QRect &r) const
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{
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int cnt = 0;
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for (int i = 0; i < count(); ++i) {
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if (geometry(i).intersects(r)) {
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++cnt;
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}
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}
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return cnt;
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}
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QSize Screens::displaySize() const
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{
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return size();
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}
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Qt::ScreenOrientation Screens::orientation(int screen) const
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{
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Q_UNUSED(screen)
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return Qt::PrimaryOrientation;
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}
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void Screens::setConfig(KSharedConfig::Ptr config)
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{
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m_config = config;
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}
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int Screens::physicalDpiX(int screen) const
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{
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return size(screen).width() / physicalSize(screen).width() * qreal(25.4);
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}
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int Screens::physicalDpiY(int screen) const
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{
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return size(screen).height() / physicalSize(screen).height() * qreal(25.4);
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}
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int Screens::number(const QPoint &pos) const
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{
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// TODO: Do something about testScreens and other tests that use MockScreens.
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// They only make core code more convoluted with ifdefs.
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#ifdef KWIN_UNIT_TEST
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Q_UNUSED(pos)
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return -1;
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#else
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int bestScreen = 0;
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int minDistance = INT_MAX;
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const auto outputs = kwinApp()->platform()->enabledOutputs();
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for (int i = 0; i < outputs.size(); ++i) {
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const QRect &geo = outputs[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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#endif
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}
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AbstractOutput *Screens::findOutput(int screen) const
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{
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// TODO: Do something about testScreens and other tests that use MockScreens.
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// They only make core code more convoluted with ifdefs.
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#ifdef KWIN_UNIT_TEST
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Q_UNUSED(screen)
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return nullptr;
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#else
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return kwinApp()->platform()->findOutput(screen);
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#endif
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}
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} // namespace
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