diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/gui/kernel/qguiapplication.cpp | 4 | ||||
| -rw-r--r-- | src/gui/kernel/qtouchdevice.h | 1 | ||||
| -rw-r--r-- | src/gui/kernel/qtouchdevice_p.h | 7 | ||||
| -rw-r--r-- | src/gui/kernel/qwindowsysteminterface.cpp | 43 | ||||
| -rw-r--r-- | src/gui/kernel/qwindowsysteminterface_p.h | 2 |
5 files changed, 51 insertions, 6 deletions
diff --git a/src/gui/kernel/qguiapplication.cpp b/src/gui/kernel/qguiapplication.cpp index d8457bc041..76386a30a0 100644 --- a/src/gui/kernel/qguiapplication.cpp +++ b/src/gui/kernel/qguiapplication.cpp @@ -84,6 +84,7 @@ #include "private/qcursor_p.h" #include "private/qopenglcontext_p.h" #include "private/qinputdevicemanager_p.h" +#include "private/qtouchdevice_p.h" #include "private/qdnd_p.h" #include <qpa/qplatformthemefactory_p.h> @@ -1944,7 +1945,8 @@ void QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::Mo points << point; QEvent::Type type; - QList<QTouchEvent::TouchPoint> touchPoints = QWindowSystemInterfacePrivate::fromNativeTouchPoints(points, window, &type); + QList<QTouchEvent::TouchPoint> touchPoints = + QWindowSystemInterfacePrivate::fromNativeTouchPoints(points, window, QTouchDevicePrivate::get(m_fakeTouchDevice)->id, &type); QWindowSystemInterfacePrivate::TouchEvent fake(window, e->timestamp, type, m_fakeTouchDevice, touchPoints, e->modifiers); fake.flags |= QWindowSystemInterfacePrivate::WindowSystemEvent::Synthetic; diff --git a/src/gui/kernel/qtouchdevice.h b/src/gui/kernel/qtouchdevice.h index 0fb24e47bf..c98aa69236 100644 --- a/src/gui/kernel/qtouchdevice.h +++ b/src/gui/kernel/qtouchdevice.h @@ -87,6 +87,7 @@ public: private: QTouchDevicePrivate *d; + friend class QTouchDevicePrivate; }; Q_DECLARE_OPERATORS_FOR_FLAGS(QTouchDevice::Capabilities) diff --git a/src/gui/kernel/qtouchdevice_p.h b/src/gui/kernel/qtouchdevice_p.h index 203d9fca74..18d2af46a7 100644 --- a/src/gui/kernel/qtouchdevice_p.h +++ b/src/gui/kernel/qtouchdevice_p.h @@ -64,16 +64,21 @@ public: : type(QTouchDevice::TouchScreen), caps(QTouchDevice::Position), maxTouchPoints(1) - { } + { + static quint8 nextId = 2; // device 0 is not used, device 1 is for mouse device + id = nextId++; + } QTouchDevice::DeviceType type; QTouchDevice::Capabilities caps; QString name; int maxTouchPoints; + quint8 id; static void registerDevice(const QTouchDevice *dev); static void unregisterDevice(const QTouchDevice *dev); static bool isRegistered(const QTouchDevice *dev); + static QTouchDevicePrivate *get(QTouchDevice *q) { return q->d; } }; QT_END_NAMESPACE diff --git a/src/gui/kernel/qwindowsysteminterface.cpp b/src/gui/kernel/qwindowsysteminterface.cpp index bb778bc5fc..ecc84e73d7 100644 --- a/src/gui/kernel/qwindowsysteminterface.cpp +++ b/src/gui/kernel/qwindowsysteminterface.cpp @@ -460,9 +460,40 @@ void QWindowSystemInterface::handleTouchEvent(QWindow *w, QTouchDevice *device, handleTouchEvent(w, time, device, points, mods); } +static int g_nextPointId = 1; + +// map from device-independent point id (arbitrary) to "Qt point" ids +typedef QMap<quint64, int> PointIdMap; +Q_GLOBAL_STATIC(PointIdMap, g_pointIdMap) + +/*! + This function maps potentially arbitrary point ids \a pointId in the 32 bit + value space to start from 1 and increase incrementally for each touch point + held down. If all touch points are released it will reset the id back to 1 + for the following touch point. + + We can then assume that the touch points ids will never become too large, + and it will then put the device identifier \a deviceId in the upper 8 bits. + This leaves us with max 255 devices, and 16.7M taps without full release + before we run out of value space. +*/ +static int acquireCombinedPointId(quint8 deviceId, int pointId) +{ + quint64 combinedId64 = (quint64(deviceId) << 32) + pointId; + auto it = g_pointIdMap->constFind(combinedId64); + int uid; + if (it == g_pointIdMap->constEnd()) { + uid = g_nextPointId++; + g_pointIdMap->insert(combinedId64, uid); + } else { + uid = *it; + } + return (deviceId << 24) + uid; +} + QList<QTouchEvent::TouchPoint> QWindowSystemInterfacePrivate::fromNativeTouchPoints(const QList<QWindowSystemInterface::TouchPoint> &points, - const QWindow *window, + const QWindow *window, quint8 deviceId, QEvent::Type *type) { QList<QTouchEvent::TouchPoint> touchPoints; @@ -473,7 +504,7 @@ QList<QTouchEvent::TouchPoint> QList<QWindowSystemInterface::TouchPoint>::const_iterator point = points.constBegin(); QList<QWindowSystemInterface::TouchPoint>::const_iterator end = points.constEnd(); while (point != end) { - p.setId(point->id); + p.setId(acquireCombinedPointId(deviceId, point->id)); if (point->uniqueId >= 0) p.setUniqueId(point->uniqueId); p.setPressure(point->pressure); @@ -506,6 +537,11 @@ QList<QTouchEvent::TouchPoint> *type = QEvent::TouchEnd; } + if (states == Qt::TouchPointReleased) { + g_nextPointId = 1; + g_pointIdMap->clear(); + } + return touchPoints; } @@ -540,7 +576,8 @@ void QWindowSystemInterface::handleTouchEvent(QWindow *tlw, ulong timestamp, QTo return; QEvent::Type type; - QList<QTouchEvent::TouchPoint> touchPoints = QWindowSystemInterfacePrivate::fromNativeTouchPoints(points, tlw, &type); + QList<QTouchEvent::TouchPoint> touchPoints = + QWindowSystemInterfacePrivate::fromNativeTouchPoints(points, tlw, QTouchDevicePrivate::get(device)->id, &type); QWindowSystemInterfacePrivate::TouchEvent *e = new QWindowSystemInterfacePrivate::TouchEvent(tlw, timestamp, type, device, touchPoints, mods); diff --git a/src/gui/kernel/qwindowsysteminterface_p.h b/src/gui/kernel/qwindowsysteminterface_p.h index f471e1f550..e48a77a8ea 100644 --- a/src/gui/kernel/qwindowsysteminterface_p.h +++ b/src/gui/kernel/qwindowsysteminterface_p.h @@ -503,7 +503,7 @@ public: static QList<QTouchEvent::TouchPoint> fromNativeTouchPoints(const QList<QWindowSystemInterface::TouchPoint> &points, - const QWindow *window, QEvent::Type *type = Q_NULLPTR); + const QWindow *window, quint8 deviceId, QEvent::Type *type = Q_NULLPTR); static QList<QWindowSystemInterface::TouchPoint> toNativeTouchPoints(const QList<QTouchEvent::TouchPoint>& pointList, const QWindow *window); |