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****************************************************************************/
#ifndef QWINDOWSYSTEMINTERFACE_H
#define QWINDOWSYSTEMINTERFACE_H

#include <QtCore/QTime>
#include <QtGui/qwindowdefs.h>
#include <QtCore/QEvent>
#include <QtGui/QWidget>
#include <QtCore/QWeakPointer>
#include <QtCore/QMutex>
#include <QtGui/QTouchEvent>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Gui)

class Q_GUI_EXPORT QWindowSystemInterface
{
public:
    static void handleMouseEvent(QWidget *w, const QPoint & local, const QPoint & global, Qt::MouseButtons b);
    static void handleMouseEvent(QWidget *w, ulong timestamp, const QPoint & local, const QPoint & global, Qt::MouseButtons b);

    static void handleKeyEvent(QWidget *w, QEvent::Type t, int k, Qt::KeyboardModifiers mods, const QString & text = QString(), bool autorep = false, ushort count = 1);
    static void handleKeyEvent(QWidget *w, ulong timestamp, QEvent::Type t, int k, Qt::KeyboardModifiers mods, const QString & text = QString(), bool autorep = false, ushort count = 1);

    static void handleExtendedKeyEvent(QWidget *w, QEvent::Type type, int key, Qt::KeyboardModifiers modifiers,
                                       quint32 nativeScanCode, quint32 nativeVirtualKey,
                                       quint32 nativeModifiers,
                                       const QString& text = QString(), bool autorep = false,
                                       ushort count = 1);
    static void handleExtendedKeyEvent(QWidget *w, ulong timestamp, QEvent::Type type, int key, Qt::KeyboardModifiers modifiers,
                                       quint32 nativeScanCode, quint32 nativeVirtualKey,
                                       quint32 nativeModifiers,
                                       const QString& text = QString(), bool autorep = false,
                                       ushort count = 1);

    static void handleWheelEvent(QWidget *w, const QPoint & local, const QPoint & global, int d, Qt::Orientation o);
    static void handleWheelEvent(QWidget *w, ulong timestamp, const QPoint & local, const QPoint & global, int d, Qt::Orientation o);

    struct TouchPoint {
        int id;                 // for application use
        bool isPrimary;         // for application use
        QPointF normalPosition; // touch device coordinates, (0 to 1, 0 to 1)
        QRectF area;            // the touched area, centered at position in screen coordinates
        qreal pressure;         // 0 to 1
        Qt::TouchPointState state; //Qt::TouchPoint{Pressed|Moved|Stationary|Released}
    };

    static void handleTouchEvent(QWidget *w, QEvent::Type type, QTouchEvent::DeviceType devType, const QList<struct TouchPoint> &points);
    static void handleTouchEvent(QWidget *w, ulong timestamp, QEvent::Type type, QTouchEvent::DeviceType devType, const QList<struct TouchPoint> &points);

    static void handleGeometryChange(QWidget *w, const QRect &newRect);
    static void handleCloseEvent(QWidget *w);
    static void handleEnterEvent(QWidget *w);
    static void handleLeaveEvent(QWidget *w);
    static void handleWindowActivated(QWidget *w);

    // Changes to the screen
    static void handleScreenGeometryChange(int screenIndex);
    static void handleScreenAvailableGeometryChange(int screenIndex);
    static void handleScreenCountChange(int count);
};

QT_END_NAMESPACE
QT_END_HEADER
#endif // QWINDOWSYSTEMINTERFACE_H