qfbscreen_p.h

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#ifndef QFBSCREEN_P_H
#define QFBSCREEN_P_H
 
//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
 
#include <qpa/qplatformscreen.h>
#include <QtCore/QTimer>
#include <QtCore/QSize>
#include "qfbcursor_p.h"
 
QT_BEGIN_NAMESPACE
 
class QFbWindow;
class QFbCursor;
class QPainter;
class QFbBackingStore;
 
class QFbScreen : public QObject, public QPlatformScreen
{
    Q_OBJECT
 
public:
    enum Flag {
        DontForceFirstWindowToFullScreen = 0x01
    };
    Q_DECLARE_FLAGS(Flags, Flag)
 
    QFbScreen();
    ~QFbScreen();
 
    virtual bool initialize();
 
    QRect geometry() const override { return mGeometry; }
    int depth() const override { return mDepth; }
    QImage::Format format() const override { return mFormat; }
    QSizeF physicalSize() const override { return mPhysicalSize; }
    QPlatformCursor *cursor() const override { return mCursor; }
 
    QWindow *topWindow() const;
    QWindow *topLevelAt(const QPoint & p) const override;
 
    // compositor api
    virtual void addWindow(QFbWindow *window);
    virtual void removeWindow(QFbWindow *window);
    virtual void raise(QFbWindow *window);
    virtual void lower(QFbWindow *window);
    virtual void topWindowChanged(QWindow *) {}
    virtual int windowCount() const;
    virtual Flags flags() const;
 
    void addPendingBackingStore(QFbBackingStore *bs) { mPendingBackingStores << bs; }
 
    void scheduleUpdate();
 
public slots:
    virtual void setDirty(const QRect &rect);
    void setPhysicalSize(const QSize &size);
    void setGeometry(const QRect &rect);
 
protected:
    virtual QRegion doRedraw();
 
    void initializeCompositor();
    bool event(QEvent *event) override;
 
    QFbWindow *windowForId(WId wid) const;
 
    QList<QFbWindow *> mWindowStack;
    QRegion mRepaintRegion;
    bool mUpdatePending;
 
    QFbCursor *mCursor;
    QRect mGeometry;
    int mDepth;
    QImage::Format mFormat;
    QSizeF mPhysicalSize;
    QImage mScreenImage;
 
private:
    QPainter *mPainter;
    QList<QFbBackingStore*> mPendingBackingStores;
 
    friend class QFbWindow;
};
 
Q_DECLARE_OPERATORS_FOR_FLAGS(QFbScreen::Flags)
 
QT_END_NAMESPACE
 
#endif // QFBSCREEN_P_H