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/*
SPDX-FileCopyrightText: 2016 Marco Martin <mart@kde.org>
SPDX-License-Identifier: LGPL-2.0-or-later
*/
#pragma once
#include <QAbstractNativeEventFilter>
#include <QHash>
#include <QObject>
#include <QSet>
#include <QString>
#include <QTimer>
#include <KConfigGroup>
#include <KSharedConfig>
class QScreen;
class OutputOrderWatcher;
class ScreenPool : public QObject
{
Q_OBJECT
public:
explicit ScreenPool(QObject *parent = nullptr);
~ScreenPool() override;
int idForName(const QString &connector) const;
int idForScreen(const QScreen *screen) const;
QScreen *screenForId(int id) const;
QList<QScreen *> screenOrder() const;
QScreen *primaryScreen() const;
bool noRealOutputsConnected() const;
Q_SIGNALS:
void screenRemoved(QScreen *screen); // TODO: necessary?
void screenOrderChanged(const QList<QScreen *> &screens);
private:
void insertScreenMapping(int id, const QString &connector);
int firstAvailableId() const;
QScreen *outputRedundantTo(QScreen *screen) const;
void reconsiderOutputs();
void reconsiderOutputOrder();
bool isOutputFake(QScreen *screen) const;
void insertSortedScreen(QScreen *screen);
void handleScreenAdded(QScreen *screen);
void handleScreenRemoved(QScreen *screen);
void handleOutputOrderChanged(const QStringList &newOrder);
void handleScreenGeometryChanged(QScreen *screen);
void screenInvariants();
// List correspondent to qGuiApp->screens(), but sorted first by size then by Id,
// determines the screen importance while figuring out the reduntant ones
QList<QScreen *> m_sizeSortedScreens;
// This will always be true: m_availableScreens + m_redundantScreens + m_fakeScreens == qGuiApp->screens()
QList<QScreen *> m_availableScreens; // Those are all the screen that are available to Corona, ordered by id coming from the protocol
QHash<QScreen *, QScreen *> m_redundantScreens;
QSet<QScreen *> m_fakeScreens;
bool m_orderChangedPendingSignal = false;
OutputOrderWatcher *m_outputOrderWatcher;
friend QDebug operator<<(QDebug d, const ScreenPool *pool);
};
QDebug operator<<(QDebug d, const ScreenPool *pool);
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