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/****************************************************************************
**
** Copyright (C) 2014 BogDan Vatra <bogdan@kde.org>
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QANDROIDPLATFORMSCREEN_H
#define QANDROIDPLATFORMSCREEN_H

#include <qpa/qplatformscreen.h>
#include <QList>
#include <QPainter>
#include <QTimer>
#include <QWaitCondition>
#include <QtCore/private/qjni_p.h>

#include "androidsurfaceclient.h"

#include <android/native_window.h>

QT_BEGIN_NAMESPACE

class QAndroidPlatformWindow;

class QAndroidPlatformScreen: public QObject, public QPlatformScreen, public AndroidSurfaceClient
{
    Q_OBJECT
public:
    QAndroidPlatformScreen();
    ~QAndroidPlatformScreen();

    QRect geometry() const { return QRect(QPoint(), m_size); }
    QRect availableGeometry() const { return m_availableGeometry; }
    int depth() const { return m_depth; }
    QImage::Format format() const { return m_format; }
    QSizeF physicalSize() const { return m_physicalSize; }

    inline QWindow *topWindow() const;
    QWindow *topLevelAt(const QPoint & p) const;

    // compositor api
    void addWindow(QAndroidPlatformWindow *window);
    void removeWindow(QAndroidPlatformWindow *window);
    void raise(QAndroidPlatformWindow *window);
    void lower(QAndroidPlatformWindow *window);

    void scheduleUpdate();
    void topWindowChanged(QWindow *w);
    int rasterSurfaces();

public slots:
    void setDirty(const QRect &rect);
    void setPhysicalSize(const QSize &size);
    void setAvailableGeometry(const QRect &rect);
    void setSize(const QSize &size);

protected:
    typedef QList<QAndroidPlatformWindow *> WindowStackType;
    WindowStackType m_windowStack;
    QRect m_dirtyRect;
    QTimer m_redrawTimer;

    QRect m_availableGeometry;
    int m_depth;
    QImage::Format m_format;
    QSizeF m_physicalSize;

private:
    QDpi logicalDpi() const;
    Qt::ScreenOrientation orientation() const;
    Qt::ScreenOrientation nativeOrientation() const;
    void surfaceChanged(JNIEnv *env, jobject surface, int w, int h);
    void releaseSurface();
    void applicationStateChanged(Qt::ApplicationState);

private slots:
    void doRedraw();

private:
    int m_id = -1;
    QAtomicInt m_rasterSurfaces = 0;
    ANativeWindow* m_nativeSurface = nullptr;
    QWaitCondition m_surfaceWaitCondition;
    QSize m_size;
};

QT_END_NAMESPACE
#endif