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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
#ifndef QPOINTINGDEVICE_P_H
#define QPOINTINGDEVICE_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 <QtCore/qloggingcategory.h>
#include <QtGui/private/qevent_p.h>
#include <QtGui/qpointingdevice.h>
#include <QtGui/private/qtguiglobal_p.h>
#include <QtGui/private/qinputdevice_p.h>
#include <QtCore/qpointer.h>
#include <QtCore/private/qflatmap_p.h>
QT_BEGIN_NAMESPACE
Q_DECLARE_LOGGING_CATEGORY(lcPointerGrab);
class Q_GUI_EXPORT QPointingDevicePrivate : public QInputDevicePrivate
{
Q_DECLARE_PUBLIC(QPointingDevice)
public:
QPointingDevicePrivate(const QString &name, qint64 id, QInputDevice::DeviceType type,
QPointingDevice::PointerType pType, QPointingDevice::Capabilities caps,
int maxPoints, int buttonCount,
const QString &seatName = QString(),
QPointingDeviceUniqueId uniqueId = QPointingDeviceUniqueId())
: QInputDevicePrivate(name, id, type, caps, seatName),
uniqueId(uniqueId),
maximumTouchPoints(qint8(maxPoints)), buttonCount(qint8(buttonCount)),
pointerType(pType)
{
pointingDeviceType = true;
activePoints.reserve(maxPoints);
}
~QPointingDevicePrivate() override;
void sendTouchCancelEvent(QTouchEvent *cancelEvent);
/*! \internal
This struct (stored in activePoints) holds persistent state between event deliveries.
*/
struct EventPointData {
QEventPoint eventPoint;
QPointer<QObject> exclusiveGrabber;
QPointer<QObject> exclusiveGrabberContext; // extra info about where the grab happened
QList<QPointer <QObject> > passiveGrabbers;
QList<QPointer <QObject> > passiveGrabbersContext; // parallel list: extra info about where the grabs happened
};
EventPointData *queryPointById(int id) const;
EventPointData *pointById(int id) const;
void removePointById(int id);
QObject *firstActiveTarget() const;
QWindow *firstActiveWindow() const;
QObject *firstPointExclusiveGrabber() const;
void setExclusiveGrabber(const QPointerEvent *event, const QEventPoint &point, QObject *exclusiveGrabber);
bool removeExclusiveGrabber(const QPointerEvent *event, const QObject *grabber);
bool addPassiveGrabber(const QPointerEvent *event, const QEventPoint &point, QObject *grabber);
static bool setPassiveGrabberContext(EventPointData *epd, QObject *grabber, QObject *context);
bool removePassiveGrabber(const QPointerEvent *event, const QEventPoint &point, QObject *grabber);
void clearPassiveGrabbers(const QPointerEvent *event, const QEventPoint &point);
void removeGrabber(QObject *grabber, bool cancel = false);
using EventPointMap = QVarLengthFlatMap<int, EventPointData, 20>;
mutable EventPointMap activePoints;
QPointingDeviceUniqueId uniqueId;
quint32 toolId = 0; // only for Wacom tablets
qint8 maximumTouchPoints = 0;
qint8 buttonCount = 0;
QPointingDevice::PointerType pointerType = QPointingDevice::PointerType::Unknown;
bool toolProximity = false; // only for Wacom tablets
inline static QPointingDevicePrivate *get(QPointingDevice *q)
{
return static_cast<QPointingDevicePrivate *>(QObjectPrivate::get(q));
}
inline static const QPointingDevicePrivate *get(const QPointingDevice *q)
{
return static_cast<const QPointingDevicePrivate *>(QObjectPrivate::get(q));
}
static const QPointingDevice *tabletDevice(QInputDevice::DeviceType deviceType,
QPointingDevice::PointerType pointerType,
QPointingDeviceUniqueId uniqueId);
static const QPointingDevice *queryTabletDevice(QInputDevice::DeviceType deviceType,
QPointingDevice::PointerType pointerType,
QPointingDeviceUniqueId uniqueId,
QInputDevice::Capabilities capabilities = QInputDevice::Capability::None,
qint64 systemId = 0);
static const QPointingDevice *pointingDeviceById(qint64 systemId);
};
QT_END_NAMESPACE
#endif // QPOINTINGDEVICE_P_H
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