qeventpoint_p.h - mozsearch

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// Copyright (C) 2020 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

// Qt-Security score:significant reason:default

#ifndef QEVENTPOINT_P_H

#define QEVENTPOINT_P_H

//

//  W A R N I N G

//  -------------

//

// This file is not part of the Qt API. It exists for the convenience

// of other Qt classes. This header file may change from version to

// version without notice, or even be removed.

//

// We mean it.

//

#include <QtGui/private/qtguiglobal_p.h>

#include <QtGui/qevent.h>

#include <QtCore/qloggingcategory.h>

#include <QtCore/qpointer.h>

QT_BEGIN_NAMESPACE

Q_DECLARE_LOGGING_CATEGORY(lcPointerVel);

Q_DECLARE_LOGGING_CATEGORY(lcEPDetach);

class QPointingDevice;

class QEventPointPrivate : public QSharedData

public:

    QEventPointPrivate(int id, const QPointingDevice *device)

      : device(device), pointId(id) { }

    QEventPointPrivate(int pointId, QEventPoint::State state, const QPointF &scenePosition, const QPointF &globalPosition)

        : scenePos(scenePosition), globalPos(globalPosition), pointId(pointId), state(state)

        if (state == QEventPoint::State::Released)

            pressure = 0;

    inline bool operator==(const QEventPointPrivate &other) const

        return device == other.device

            && window == other.window

            && target == other.target

            && pos == other.pos

            && scenePos == other.scenePos

            && globalPos == other.globalPos

            && globalPressPos == other.globalPressPos

            && globalGrabPos == other.globalGrabPos

            && globalLastPos == other.globalLastPos

            && pressure == other.pressure

            && rotation == other.rotation

            && ellipseDiameters == other.ellipseDiameters

            && velocity == other.velocity

            && timestamp == other.timestamp

            && lastTimestamp == other.lastTimestamp

            && pressTimestamp == other.pressTimestamp

            && uniqueId == other.uniqueId

            && pointId == other.pointId

            && state == other.state;

    const QPointingDevice *device = nullptr;

    QPointer<QWindow> window;

    QPointer<QObject> target;

    QPointF pos, scenePos, globalPos,

            globalPressPos, globalGrabPos, globalLastPos;

    qreal pressure = 1;

    qreal rotation = 0;

    QSizeF ellipseDiameters = QSizeF(0, 0);

    QVector2D velocity;

    ulong timestamp = 0;

    ulong lastTimestamp = 0;

    ulong pressTimestamp = 0;

    QPointingDeviceUniqueId uniqueId;

    int pointId = -1;

    QEventPoint::State state = QEventPoint::State::Unknown;

    bool accept = false;

};

// Private subclasses to allow accessing and modifying protected variables.

// These should NOT hold any extra state.

class QMutableEventPoint

public:

    static QEventPoint withTimeStamp(ulong timestamp, int pointId, QEventPoint::State state,

                                     QPointF position, QPointF scenePosition, QPointF globalPosition)

        QEventPoint p(pointId, state, scenePosition, globalPosition);

        p.d->timestamp = timestamp;

        p.d->pos = position;

        return p;

    static Q_GUI_EXPORT void update(const QEventPoint &from, QEventPoint &to);

    static Q_GUI_EXPORT void detach(QEventPoint &p);

#define TRIVIAL_SETTER(type, field, Field) \

    static void set##Field (QEventPoint &p, type arg) { p.d->field = std::move(arg); } \

    /* end */

    TRIVIAL_SETTER(int, pointId, Id)

    TRIVIAL_SETTER(const QPointingDevice *, device, Device)

    // not trivial:

    static Q_GUI_EXPORT void setTimestamp(QEventPoint &p, ulong t);

    TRIVIAL_SETTER(ulong, pressTimestamp, PressTimestamp)

    TRIVIAL_SETTER(QEventPoint::State, state, State)

    TRIVIAL_SETTER(QPointingDeviceUniqueId, uniqueId, UniqueId)

    TRIVIAL_SETTER(QPointF, pos, Position)

    TRIVIAL_SETTER(QPointF, scenePos, ScenePosition)

    TRIVIAL_SETTER(QPointF, globalPos, GlobalPosition)

    TRIVIAL_SETTER(QPointF, globalPressPos, GlobalPressPosition)

    TRIVIAL_SETTER(QPointF, globalGrabPos, GlobalGrabPosition)

    TRIVIAL_SETTER(QPointF, globalLastPos, GlobalLastPosition)

    TRIVIAL_SETTER(QSizeF, ellipseDiameters, EllipseDiameters)

    TRIVIAL_SETTER(qreal, pressure, Pressure)

    TRIVIAL_SETTER(qreal, rotation, Rotation)

    TRIVIAL_SETTER(QVector2D, velocity, Velocity)

    static QWindow *window(const QEventPoint &p) { return p.d->window.data(); }

    TRIVIAL_SETTER(QWindow *, window, Window)

    static QObject *target(const QEventPoint &p) { return p.d->target.data(); }

    TRIVIAL_SETTER(QObject *, target, Target)

#undef TRIVIAL_SETTER

};

QT_END_NAMESPACE

#endif // QEVENTPOINT_P_H