/****************************************************************************
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
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****************************************************************************/

#ifndef QPLATFORMSCREEN_H
#define QPLATFORMSCREEN_H

//
//  W A R N I N G
//  -------------
//
// This file is part of the QPA API and is not meant to be used
// in applications. Usage of this API may make your code
// source and binary incompatible with future versions of Qt.
//

#include <QtCore/qmetatype.h>
#include <QtCore/qnamespace.h>
#include <QtCore/qcoreevent.h>
#include <QtCore/qvariant.h>
#include <QtCore/qrect.h>
#include <QtCore/qobject.h>

#include <QtGui/qcursor.h>
#include <QtGui/qimage.h>
#include <QtGui/qwindowdefs.h>
#include <qpa/qplatformpixmap.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE


class QPlatformBackingStore;
class QPlatformOpenGLContext;
class QPlatformScreenPrivate;
class QPlatformWindow;
class QPlatformCursor;
class QPlatformScreenPageFlipper;
class QScreen;
class QSurfaceFormat;

typedef QPair<qreal, qreal> QDpi;


class Q_GUI_EXPORT QPlatformScreen
{
    Q_DECLARE_PRIVATE(QPlatformScreen)

public:
    QPlatformScreen();
    virtual ~QPlatformScreen();

    virtual QPixmap grabWindow(WId window, int x, int y, int width, int height) const;

    virtual QRect geometry() const = 0;
    virtual QRect availableGeometry() const {return geometry();}

    virtual int depth() const = 0;
    virtual QImage::Format format() const = 0;

    virtual QSizeF physicalSize() const;
    virtual QDpi logicalDpi() const;

    virtual qreal refreshRate() const;

    virtual Qt::ScreenOrientation orientation() const;

    virtual QWindow *topLevelAt(const QPoint &point) const;
    virtual QList<QPlatformScreen *> virtualSiblings() const;

    QScreen *screen() const;

    //jl: should this function be in QPlatformIntegration
    //jl: maybe screenForWindow is a better name?
    static QPlatformScreen *platformScreenForWindow(const QWindow *window);

    virtual QString name() const { return QString(); }

    virtual QPlatformScreenPageFlipper *pageFlipper() const;
    virtual QPlatformCursor *cursor() const;

protected:
    QScopedPointer<QPlatformScreenPrivate> d_ptr;

private:
    Q_DISABLE_COPY(QPlatformScreen)

    friend class QPlatformIntegration;
};

QT_END_NAMESPACE

QT_END_HEADER

#endif // QPLATFORMSCREEN_H