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| |
| #include "qwaylandtouch_p.h" |
| #include "qwaylandinputdevice_p.h" |
| #include "qwaylanddisplay_p.h" |
| #include "qwaylandsurface_p.h" |
| |
| QT_BEGIN_NAMESPACE |
| |
| namespace QtWaylandClient { |
| |
| QWaylandTouchExtension::QWaylandTouchExtension(QWaylandDisplay *display, uint32_t id) |
| : QtWayland::qt_touch_extension(display->wl_registry(), id, 1), |
| mDisplay(display), |
| mTouchDevice(nullptr), |
| mPointsLeft(0), |
| mFlags(0), |
| mMouseSourceId(-1), |
| mInputDevice(nullptr) |
| { |
| } |
| |
| void QWaylandTouchExtension::registerDevice(int caps) |
| { |
| mTouchDevice = new QTouchDevice; |
| mTouchDevice->setType(QTouchDevice::TouchScreen); |
| mTouchDevice->setCapabilities(QTouchDevice::Capabilities(caps)); |
| QWindowSystemInterface::registerTouchDevice(mTouchDevice); |
| } |
| |
| static inline qreal fromFixed(int f) |
| { |
| return f / qreal(10000); |
| } |
| |
| void QWaylandTouchExtension::touch_extension_touch(uint32_t time, |
| uint32_t id, uint32_t state, int32_t x, int32_t y, |
| int32_t normalized_x, int32_t normalized_y, |
| int32_t width, int32_t height, uint32_t pressure, |
| int32_t velocity_x, int32_t velocity_y, |
| uint32_t flags, wl_array *rawdata) |
| { |
| if (!mInputDevice) { |
| QList<QWaylandInputDevice *> inputDevices = mDisplay->inputDevices(); |
| if (inputDevices.isEmpty()) { |
| qWarning("qt_touch_extension: handle_touch: No input devices"); |
| return; |
| } |
| mInputDevice = inputDevices.first(); |
| } |
| QWaylandWindow *win = mInputDevice->touchFocus(); |
| if (!win) |
| win = mInputDevice->pointerFocus(); |
| if (!win) |
| win = mInputDevice->keyboardFocus(); |
| if (!win || !win->window()) { |
| qWarning("qt_touch_extension: handle_touch: No pointer focus"); |
| return; |
| } |
| mTargetWindow = win->window(); |
| |
| QWindowSystemInterface::TouchPoint tp; |
| tp.id = id; |
| tp.state = Qt::TouchPointState(int(state & 0xFFFF)); |
| int sentPointCount = state >> 16; |
| if (!mPointsLeft) { |
| Q_ASSERT(sentPointCount > 0); |
| mPointsLeft = sentPointCount; |
| } |
| tp.flags = QTouchEvent::TouchPoint::InfoFlags(int(flags & 0xFFFF)); |
| |
| if (!mTouchDevice) |
| registerDevice(flags >> 16); |
| |
| tp.area = QRectF(0, 0, fromFixed(width), fromFixed(height)); |
| // Got surface-relative coords but need a (virtual) screen position. |
| QPointF relPos = QPointF(fromFixed(x), fromFixed(y)); |
| QPointF delta = relPos - relPos.toPoint(); |
| tp.area.moveCenter(mTargetWindow->mapToGlobal(relPos.toPoint()) + delta); |
| |
| tp.normalPosition.setX(fromFixed(normalized_x)); |
| tp.normalPosition.setY(fromFixed(normalized_y)); |
| tp.pressure = pressure / 255.0; |
| tp.velocity.setX(fromFixed(velocity_x)); |
| tp.velocity.setY(fromFixed(velocity_y)); |
| |
| if (rawdata) { |
| const int rawPosCount = rawdata->size / sizeof(float) / 2; |
| float *p = static_cast<float *>(rawdata->data); |
| for (int i = 0; i < rawPosCount; ++i) { |
| float x = *p++; |
| float y = *p++; |
| tp.rawPositions.append(QPointF(x, y)); |
| } |
| } |
| |
| mTouchPoints.append(tp); |
| mTimestamp = time; |
| |
| if (!--mPointsLeft) |
| sendTouchEvent(); |
| } |
| |
| void QWaylandTouchExtension::sendTouchEvent() |
| { |
| // Copy all points, that are in the previous but not in the current list, as stationary. |
| for (int i = 0; i < mPrevTouchPoints.count(); ++i) { |
| const QWindowSystemInterface::TouchPoint &prevPoint(mPrevTouchPoints.at(i)); |
| if (prevPoint.state == Qt::TouchPointReleased) |
| continue; |
| bool found = false; |
| for (int j = 0; j < mTouchPoints.count(); ++j) |
| if (mTouchPoints.at(j).id == prevPoint.id) { |
| found = true; |
| break; |
| } |
| if (!found) { |
| QWindowSystemInterface::TouchPoint p = prevPoint; |
| p.state = Qt::TouchPointStationary; |
| mTouchPoints.append(p); |
| } |
| } |
| |
| if (mTouchPoints.isEmpty()) { |
| mPrevTouchPoints.clear(); |
| return; |
| } |
| |
| QWindowSystemInterface::handleTouchEvent(mTargetWindow, mTimestamp, mTouchDevice, mTouchPoints); |
| |
| Qt::TouchPointStates states = 0; |
| for (int i = 0; i < mTouchPoints.count(); ++i) |
| states |= mTouchPoints.at(i).state; |
| |
| if (mFlags & QT_TOUCH_EXTENSION_FLAGS_MOUSE_FROM_TOUCH) { |
| if (states == Qt::TouchPointPressed) |
| mMouseSourceId = mTouchPoints.first().id; |
| for (int i = 0; i < mTouchPoints.count(); ++i) { |
| const QWindowSystemInterface::TouchPoint &tp(mTouchPoints.at(i)); |
| if (tp.id == mMouseSourceId) { |
| Qt::MouseButtons buttons = tp.state == Qt::TouchPointReleased ? Qt::NoButton : Qt::LeftButton; |
| mLastMouseGlobal = tp.area.center(); |
| QPoint globalPoint = mLastMouseGlobal.toPoint(); |
| QPointF delta = mLastMouseGlobal - globalPoint; |
| mLastMouseLocal = mTargetWindow->mapFromGlobal(globalPoint) + delta; |
| QWindowSystemInterface::handleMouseEvent(mTargetWindow, mTimestamp, mLastMouseLocal, mLastMouseGlobal, buttons); |
| if (buttons == Qt::NoButton) |
| mMouseSourceId = -1; |
| break; |
| } |
| } |
| } |
| |
| mPrevTouchPoints = mTouchPoints; |
| mTouchPoints.clear(); |
| |
| if (states == Qt::TouchPointReleased) |
| mPrevTouchPoints.clear(); |
| } |
| |
| void QWaylandTouchExtension::touchCanceled() |
| { |
| mTouchPoints.clear(); |
| mPrevTouchPoints.clear(); |
| if (mMouseSourceId != -1) |
| QWindowSystemInterface::handleMouseEvent(mTargetWindow, mTimestamp, mLastMouseLocal, mLastMouseGlobal, Qt::NoButton); |
| } |
| |
| void QWaylandTouchExtension::touch_extension_configure(uint32_t flags) |
| { |
| mFlags = flags; |
| } |
| |
| } |
| |
| QT_END_NAMESPACE |