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39
40#ifndef QPOINTINGDEVICE_P_H
41#define QPOINTINGDEVICE_P_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists purely as an
48// implementation detail. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include <QtGui/private/qevent_p.h>
55#include <QtGui/qpointingdevice.h>
56#include <QtGui/private/qtguiglobal_p.h>
57#include <QtGui/private/qinputdevice_p.h>
58#include <QtCore/private/qflatmap_p.h>
59
60QT_BEGIN_NAMESPACE
61
62class Q_GUI_EXPORT QPointingDevicePrivate : public QInputDevicePrivate
63{
64 Q_DECLARE_PUBLIC(QPointingDevice)
65public:
66 QPointingDevicePrivate(const QString &name, qint64 id, QInputDevice::DeviceType type,
67 QPointingDevice::PointerType pType, QPointingDevice::Capabilities caps,
68 int maxPoints, int buttonCount,
69 const QString &seatName = QString(),
70 QPointingDeviceUniqueId uniqueId = QPointingDeviceUniqueId())
71 : QInputDevicePrivate(name, id, type, caps, seatName),
72 uniqueId(uniqueId),
73 maximumTouchPoints(qint8(maxPoints)), buttonCount(qint8(buttonCount)),
74 pointerType(pType)
75 {
76 pointingDeviceType = true;
77 activePoints.reserve(maxPoints);
78 }
79
80 void sendTouchCancelEvent(QTouchEvent *cancelEvent);
81
82 /*! \internal
83 This struct (stored in activePoints) holds persistent state between event deliveries.
84 */
85 struct EventPointData {
86 QEventPoint eventPoint;
87 QPointer<QObject> exclusiveGrabber;
88 QList<QPointer <QObject> > passiveGrabbers;
89 };
90 EventPointData *queryPointById(int id) const;
91 EventPointData *pointById(int id) const;
92 void removePointById(int id);
93 QObject *firstActiveTarget() const;
94 QWindow *firstActiveWindow() const;
95
96 QObject *firstPointExclusiveGrabber() const;
97 void setExclusiveGrabber(const QPointerEvent *event, const QEventPoint &point, QObject *exclusiveGrabber);
98 bool removeExclusiveGrabber(const QPointerEvent *event, const QObject *grabber);
99 bool addPassiveGrabber(const QPointerEvent *event, const QEventPoint &point, QObject *grabber);
100 bool removePassiveGrabber(const QPointerEvent *event, const QEventPoint &point, QObject *grabber);
101 void clearPassiveGrabbers(const QPointerEvent *event, const QEventPoint &point);
102 void removeGrabber(QObject *grabber, bool cancel = false);
103
104 using EventPointMap = QFlatMap<int, EventPointData>;
105 mutable EventPointMap activePoints;
106
107 QPointingDeviceUniqueId uniqueId;
108 quint32 toolId = 0; // only for Wacom tablets
109 qint8 maximumTouchPoints = 0;
110 qint8 buttonCount = 0;
111 QPointingDevice::PointerType pointerType = QPointingDevice::PointerType::Unknown;
112 bool toolProximity = false; // only for Wacom tablets
113
114 inline static QPointingDevicePrivate *get(QPointingDevice *q)
115 {
116 return static_cast<QPointingDevicePrivate *>(QObjectPrivate::get(q));
117 }
118
119 inline static const QPointingDevicePrivate *get(const QPointingDevice *q)
120 {
121 return static_cast<const QPointingDevicePrivate *>(QObjectPrivate::get(q));
122 }
123
124 static const QPointingDevice *tabletDevice(QInputDevice::DeviceType deviceType,
125 QPointingDevice::PointerType pointerType,
126 QPointingDeviceUniqueId uniqueId);
127
128 static const QPointingDevice *queryTabletDevice(QInputDevice::DeviceType deviceType,
129 QPointingDevice::PointerType pointerType,
130 QPointingDeviceUniqueId uniqueId,
131 qint64 systemId = 0);
132};
133
134QT_END_NAMESPACE
135
136#endif // QPOINTINGDEVICE_P_H
137