summaryrefslogtreecommitdiffstats
path: root/src/platformsupport/input/evdevtouch/qevdevtouch.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/platformsupport/input/evdevtouch/qevdevtouch.cpp')
-rw-r--r--src/platformsupport/input/evdevtouch/qevdevtouch.cpp693
1 files changed, 0 insertions, 693 deletions
diff --git a/src/platformsupport/input/evdevtouch/qevdevtouch.cpp b/src/platformsupport/input/evdevtouch/qevdevtouch.cpp
deleted file mode 100644
index d0d8b783a4..0000000000
--- a/src/platformsupport/input/evdevtouch/qevdevtouch.cpp
+++ /dev/null
@@ -1,693 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/legal
-**
-** This file is part of the plugins module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL21$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and Digia. For licensing terms and
-** conditions see http://qt.digia.com/licensing. For further information
-** use the contact form at http://qt.digia.com/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 2.1 or version 3 as published by the Free
-** Software Foundation and appearing in the file LICENSE.LGPLv21 and
-** LICENSE.LGPLv3 included in the packaging of this file. Please review the
-** following information to ensure the GNU Lesser General Public License
-** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
-** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Digia gives you certain additional
-** rights. These rights are described in the Digia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "qevdevtouch_p.h"
-#include <QStringList>
-#include <QHash>
-#include <QSocketNotifier>
-#include <QGuiApplication>
-#include <QDebug>
-#include <QtCore/private/qcore_unix_p.h>
-#include <QtPlatformSupport/private/qdevicediscovery_p.h>
-#include <linux/input.h>
-
-#if !defined(QT_NO_MTDEV)
-extern "C" {
-#include <mtdev.h>
-}
-#endif
-
-QT_BEGIN_NAMESPACE
-
-/* android (and perhaps some other linux-derived stuff) don't define everything
- * in linux/input.h, so we'll need to do that ourselves.
- */
-#ifndef ABS_MT_TOUCH_MAJOR
-#define ABS_MT_TOUCH_MAJOR 0x30 /* Major axis of touching ellipse */
-#endif
-#ifndef ABS_MT_POSITION_X
-#define ABS_MT_POSITION_X 0x35 /* Center X ellipse position */
-#endif
-#ifndef ABS_MT_POSITION_Y
-#define ABS_MT_POSITION_Y 0x36 /* Center Y ellipse position */
-#endif
-#ifndef ABS_MT_SLOT
-#define ABS_MT_SLOT 0x2f
-#endif
-#ifndef ABS_CNT
-#define ABS_CNT (ABS_MAX+1)
-#endif
-#ifndef ABS_MT_TRACKING_ID
-#define ABS_MT_TRACKING_ID 0x39 /* Unique ID of initiated contact */
-#endif
-#ifndef SYN_MT_REPORT
-#define SYN_MT_REPORT 2
-#endif
-
-class QEvdevTouchScreenData
-{
-public:
- QEvdevTouchScreenData(QEvdevTouchScreenHandler *q_ptr, const QStringList &args);
-
- void processInputEvent(input_event *data);
- void assignIds();
-
- QEvdevTouchScreenHandler *q;
- int m_lastEventType;
- QList<QWindowSystemInterface::TouchPoint> m_touchPoints;
-
- struct Contact {
- int trackingId;
- int x;
- int y;
- int maj;
- int pressure;
- Qt::TouchPointState state;
- QTouchEvent::TouchPoint::InfoFlags flags;
- Contact() : trackingId(-1),
- x(0), y(0), maj(-1), pressure(0),
- state(Qt::TouchPointPressed), flags(0) { }
- };
- QHash<int, Contact> m_contacts; // The key is a tracking id for type A, slot number for type B.
- QHash<int, Contact> m_lastContacts;
- Contact m_currentData;
- int m_currentSlot;
-
- int findClosestContact(const QHash<int, Contact> &contacts, int x, int y, int *dist);
- void reportPoints();
- void registerDevice();
- void addTouchPoint(const Contact &contact, Qt::TouchPointStates *combinedStates);
-
- int hw_range_x_min;
- int hw_range_x_max;
- int hw_range_y_min;
- int hw_range_y_max;
- int hw_pressure_min;
- int hw_pressure_max;
- QString hw_name;
- bool m_forceToActiveWindow;
- QTouchDevice *m_device;
- bool m_typeB;
- QTransform m_rotate;
- bool m_singleTouch;
-};
-
-QEvdevTouchScreenData::QEvdevTouchScreenData(QEvdevTouchScreenHandler *q_ptr, const QStringList &args)
- : q(q_ptr),
- m_lastEventType(-1),
- m_currentSlot(0),
- hw_range_x_min(0), hw_range_x_max(0),
- hw_range_y_min(0), hw_range_y_max(0),
- hw_pressure_min(0), hw_pressure_max(0),
- m_device(0), m_typeB(false), m_singleTouch(false)
-{
- m_forceToActiveWindow = args.contains(QLatin1String("force_window"));
-}
-
-void QEvdevTouchScreenData::registerDevice()
-{
- m_device = new QTouchDevice;
- m_device->setName(hw_name);
- m_device->setType(QTouchDevice::TouchScreen);
- m_device->setCapabilities(QTouchDevice::Position | QTouchDevice::Area);
- if (hw_pressure_max > hw_pressure_min)
- m_device->setCapabilities(m_device->capabilities() | QTouchDevice::Pressure);
-
- QWindowSystemInterface::registerTouchDevice(m_device);
-}
-
-#define LONG_BITS (sizeof(long) << 3)
-#define NUM_LONGS(bits) (((bits) + LONG_BITS - 1) / LONG_BITS)
-
-#if defined(QT_NO_MTDEV)
-static inline bool testBit(long bit, const long *array)
-{
- return (array[bit / LONG_BITS] >> bit % LONG_BITS) & 1;
-}
-#endif
-
-QEvdevTouchScreenHandler::QEvdevTouchScreenHandler(const QString &specification, QObject *parent)
- : QObject(parent), m_notify(0), m_fd(-1), d(0)
-#if !defined(QT_NO_MTDEV)
- , m_mtdev(0)
-#endif
-{
- setObjectName(QLatin1String("Evdev Touch Handler"));
-
- bool printDeviceInfo = qgetenv("QT_QPA_EVDEV_DEBUG").toInt();
-
- // only the first device argument is used for now
- QString spec = QString::fromLocal8Bit(qgetenv("QT_QPA_EVDEV_TOUCHSCREEN_PARAMETERS"));
-
- if (spec.isEmpty())
- spec = specification;
-
- QStringList args = spec.split(QLatin1Char(':'));
-
- QString dev;
- int rotationAngle = 0;
- bool invertx = false;
- bool inverty = false;
- for (int i = 0; i < args.count(); ++i) {
- if (args.at(i).startsWith(QLatin1String("/dev/")) && dev.isEmpty()) {
- dev = args.at(i);
- } else if (args.at(i).startsWith(QLatin1String("rotate"))) {
- QString rotateArg = args.at(i).section(QLatin1Char('='), 1, 1);
- bool ok;
- uint argValue = rotateArg.toUInt(&ok);
- if (ok) {
- switch (argValue) {
- case 90:
- case 180:
- case 270:
- rotationAngle = argValue;
- default:
- break;
- }
- }
- } else if (args.at(i) == QLatin1String("invertx")) {
- invertx = true;
- } else if (args.at(i) == QLatin1String("inverty")) {
- inverty = true;
- }
- }
-
- if (dev.isEmpty()) {
- // try to let udev scan for already connected devices
- QScopedPointer<QDeviceDiscovery> deviceDiscovery(QDeviceDiscovery::create(QDeviceDiscovery::Device_Touchpad | QDeviceDiscovery::Device_Touchscreen, this));
- if (deviceDiscovery) {
- QStringList devices = deviceDiscovery->scanConnectedDevices();
-
- // only the first device found is used for now
- if (devices.size() > 0)
- dev = devices[0];
- }
- }
-
- if (dev.isEmpty()) {
- if (printDeviceInfo)
- qDebug("evdevtouch: No touch devices found");
- return;
- }
-
- if (printDeviceInfo)
- qDebug("evdevtouch: Using device %s", qPrintable(dev));
-
- m_fd = QT_OPEN(dev.toLocal8Bit().constData(), O_RDONLY | O_NDELAY, 0);
-
- if (m_fd >= 0) {
- m_notify = new QSocketNotifier(m_fd, QSocketNotifier::Read, this);
- connect(m_notify, SIGNAL(activated(int)), this, SLOT(readData()));
- } else {
- qErrnoWarning(errno, "evdevtouch: Cannot open input device %s", qPrintable(dev));
- return;
- }
-
-#if !defined(QT_NO_MTDEV)
- m_mtdev = static_cast<mtdev *>(calloc(1, sizeof(mtdev)));
- int mtdeverr = mtdev_open(m_mtdev, m_fd);
- if (mtdeverr) {
- qWarning("evdevtouch: mtdev_open failed: %d", mtdeverr);
- QT_CLOSE(m_fd);
- return;
- }
-#endif
-
- d = new QEvdevTouchScreenData(this, args);
-
-#if !defined(QT_NO_MTDEV)
- const char *mtdevStr = "(mtdev)";
- d->m_typeB = true;
-#else
- const char *mtdevStr = "";
- long absbits[NUM_LONGS(ABS_CNT)];
- if (ioctl(m_fd, EVIOCGBIT(EV_ABS, sizeof(absbits)), absbits) >= 0) {
- d->m_typeB = testBit(ABS_MT_SLOT, absbits);
- d->m_singleTouch = !testBit(ABS_MT_POSITION_X, absbits);
- }
-#endif
-
- if (printDeviceInfo)
- qDebug("evdevtouch: Protocol type %c %s (%s)", d->m_typeB ? 'B' : 'A',
- mtdevStr, d->m_singleTouch ? "single" : "multi");
-
- input_absinfo absInfo;
- memset(&absInfo, 0, sizeof(input_absinfo));
- bool has_x_range = false, has_y_range = false;
-
- if (ioctl(m_fd, EVIOCGABS((d->m_singleTouch ? ABS_X : ABS_MT_POSITION_X)), &absInfo) >= 0) {
- if (printDeviceInfo)
- qDebug("evdevtouch: min X: %d max X: %d", absInfo.minimum, absInfo.maximum);
- d->hw_range_x_min = absInfo.minimum;
- d->hw_range_x_max = absInfo.maximum;
- has_x_range = true;
- }
-
- if (ioctl(m_fd, EVIOCGABS((d->m_singleTouch ? ABS_Y : ABS_MT_POSITION_Y)), &absInfo) >= 0) {
- if (printDeviceInfo)
- qDebug("evdevtouch: min Y: %d max Y: %d", absInfo.minimum, absInfo.maximum);
- d->hw_range_y_min = absInfo.minimum;
- d->hw_range_y_max = absInfo.maximum;
- has_y_range = true;
- }
-
- if (!has_x_range || !has_y_range)
- qWarning("evdevtouch: Invalid ABS limits, behavior unspecified");
-
- if (ioctl(m_fd, EVIOCGABS(ABS_PRESSURE), &absInfo) >= 0) {
- if (printDeviceInfo)
- qDebug("evdevtouch: min pressure: %d max pressure: %d", absInfo.minimum, absInfo.maximum);
- if (absInfo.maximum > absInfo.minimum) {
- d->hw_pressure_min = absInfo.minimum;
- d->hw_pressure_max = absInfo.maximum;
- }
- }
-
- char name[1024];
- if (ioctl(m_fd, EVIOCGNAME(sizeof(name) - 1), name) >= 0) {
- d->hw_name = QString::fromLocal8Bit(name);
- if (printDeviceInfo)
- qDebug("evdevtouch: device name: %s", name);
- }
-
- // Fix up the coordinate ranges for am335x in case the kernel driver does not have them fixed.
- if (d->hw_name == QLatin1String("ti-tsc")) {
- if (d->hw_range_x_min == 0 && d->hw_range_x_max == 4095) {
- d->hw_range_x_min = 165;
- d->hw_range_x_max = 4016;
- }
- if (d->hw_range_y_min == 0 && d->hw_range_y_max == 4095) {
- d->hw_range_y_min = 220;
- d->hw_range_y_max = 3907;
- }
- if (printDeviceInfo)
- qDebug("evdevtouch: found ti-tsc, overriding: min X: %d max X: %d min Y: %d max Y: %d",
- d->hw_range_x_min, d->hw_range_x_max, d->hw_range_y_min, d->hw_range_y_max);
- }
-
- bool grabSuccess = !ioctl(m_fd, EVIOCGRAB, (void *) 1);
- if (grabSuccess)
- ioctl(m_fd, EVIOCGRAB, (void *) 0);
- else
- qWarning("evdevtouch: The device is grabbed by another process. No events will be read.");
-
- if (rotationAngle)
- d->m_rotate = QTransform::fromTranslate(0.5, 0.5).rotate(rotationAngle).translate(-0.5, -0.5);
-
- if (invertx)
- d->m_rotate *= QTransform::fromTranslate(0.5, 0.5).scale(-1.0, 1.0).translate(-0.5, -0.5);
-
- if (inverty)
- d->m_rotate *= QTransform::fromTranslate(0.5, 0.5).scale(1.0, -1.0).translate(-0.5, -0.5);
-
- d->registerDevice();
-}
-
-QEvdevTouchScreenHandler::~QEvdevTouchScreenHandler()
-{
-#if !defined(QT_NO_MTDEV)
- if (m_mtdev) {
- mtdev_close(m_mtdev);
- free(m_mtdev);
- }
-#endif
-
- if (m_fd >= 0)
- QT_CLOSE(m_fd);
-
- delete d;
-}
-
-void QEvdevTouchScreenHandler::readData()
-{
- ::input_event buffer[32];
- int events = 0;
-
-#if !defined(QT_NO_MTDEV)
- forever {
- do {
- events = mtdev_get(m_mtdev, m_fd, buffer, sizeof(buffer) / sizeof(::input_event));
- // keep trying mtdev_get if we get interrupted. note that we do not
- // (and should not) handle EAGAIN; EAGAIN means that reading would
- // block and we'll get back here later to try again anyway.
- } while (events == -1 && errno == EINTR);
-
- // 0 events is EOF, -1 means error, handle both in the same place
- if (events <= 0)
- goto err;
-
- // process our shiny new events
- for (int i = 0; i < events; ++i)
- d->processInputEvent(&buffer[i]);
-
- // and try to get more
- }
-#else
- int n = 0;
- for (; ;) {
- events = QT_READ(m_fd, reinterpret_cast<char*>(buffer) + n, sizeof(buffer) - n);
- if (events <= 0)
- goto err;
- n += events;
- if (n % sizeof(::input_event) == 0)
- break;
- }
-
- n /= sizeof(::input_event);
-
- for (int i = 0; i < n; ++i)
- d->processInputEvent(&buffer[i]);
-#endif
- return;
-
-err:
- if (!events) {
- qWarning("evdevtouch: Got EOF from input device");
- return;
- } else if (events < 0) {
- if (errno != EINTR && errno != EAGAIN) {
- qErrnoWarning(errno, "evdevtouch: Could not read from input device");
- if (errno == ENODEV) { // device got disconnected -> stop reading
- delete m_notify;
- m_notify = 0;
- QT_CLOSE(m_fd);
- m_fd = -1;
- }
- return;
- }
- }
-}
-
-void QEvdevTouchScreenData::addTouchPoint(const Contact &contact, Qt::TouchPointStates *combinedStates)
-{
- QWindowSystemInterface::TouchPoint tp;
- tp.id = contact.trackingId;
- tp.flags = contact.flags;
- tp.state = contact.state;
- *combinedStates |= tp.state;
-
- // Store the HW coordinates for now, will be updated later.
- tp.area = QRectF(0, 0, contact.maj, contact.maj);
- tp.area.moveCenter(QPoint(contact.x, contact.y));
- tp.pressure = contact.pressure;
-
- // Get a normalized position in range 0..1.
- tp.normalPosition = QPointF((contact.x - hw_range_x_min) / qreal(hw_range_x_max - hw_range_x_min),
- (contact.y - hw_range_y_min) / qreal(hw_range_y_max - hw_range_y_min));
-
- if (!m_rotate.isIdentity())
- tp.normalPosition = m_rotate.map(tp.normalPosition);
-
- tp.rawPositions.append(QPointF(contact.x, contact.y));
-
- m_touchPoints.append(tp);
-}
-
-void QEvdevTouchScreenData::processInputEvent(input_event *data)
-{
- if (data->type == EV_ABS) {
-
- if (data->code == ABS_MT_POSITION_X || (m_singleTouch && data->code == ABS_X)) {
- m_currentData.x = qBound(hw_range_x_min, data->value, hw_range_x_max);
- if (m_singleTouch)
- m_contacts[m_currentSlot].x = m_currentData.x;
- if (m_typeB) {
- m_contacts[m_currentSlot].x = m_currentData.x;
- if (m_contacts[m_currentSlot].state == Qt::TouchPointStationary)
- m_contacts[m_currentSlot].state = Qt::TouchPointMoved;
- }
- } else if (data->code == ABS_MT_POSITION_Y || (m_singleTouch && data->code == ABS_Y)) {
- m_currentData.y = qBound(hw_range_y_min, data->value, hw_range_y_max);
- if (m_singleTouch)
- m_contacts[m_currentSlot].y = m_currentData.y;
- if (m_typeB) {
- m_contacts[m_currentSlot].y = m_currentData.y;
- if (m_contacts[m_currentSlot].state == Qt::TouchPointStationary)
- m_contacts[m_currentSlot].state = Qt::TouchPointMoved;
- }
- } else if (data->code == ABS_MT_TRACKING_ID) {
- m_currentData.trackingId = data->value;
- if (m_typeB) {
- if (m_currentData.trackingId == -1) {
- m_contacts[m_currentSlot].state = Qt::TouchPointReleased;
- } else {
- m_contacts[m_currentSlot].state = Qt::TouchPointPressed;
- m_contacts[m_currentSlot].trackingId = m_currentData.trackingId;
- }
- }
- } else if (data->code == ABS_MT_TOUCH_MAJOR) {
- m_currentData.maj = data->value;
- if (data->value == 0)
- m_currentData.state = Qt::TouchPointReleased;
- if (m_typeB)
- m_contacts[m_currentSlot].maj = m_currentData.maj;
- } else if (data->code == ABS_PRESSURE) {
- m_currentData.pressure = qBound(hw_pressure_min, data->value, hw_pressure_max);
- if (m_typeB || m_singleTouch)
- m_contacts[m_currentSlot].pressure = m_currentData.pressure;
- } else if (data->code == ABS_MT_SLOT) {
- m_currentSlot = data->value;
- }
-
- } else if (data->type == EV_KEY && !m_typeB) {
- if (data->code == BTN_TOUCH && data->value == 0)
- m_contacts[m_currentSlot].state = Qt::TouchPointReleased;
- } else if (data->type == EV_SYN && data->code == SYN_MT_REPORT && m_lastEventType != EV_SYN) {
-
- // If there is no tracking id, one will be generated later.
- // Until that use a temporary key.
- int key = m_currentData.trackingId;
- if (key == -1)
- key = m_contacts.count();
-
- m_contacts.insert(key, m_currentData);
- m_currentData = Contact();
-
- } else if (data->type == EV_SYN && data->code == SYN_REPORT) {
-
- // Ensure valid IDs even when the driver does not report ABS_MT_TRACKING_ID.
- if (!m_contacts.isEmpty() && m_contacts.constBegin().value().trackingId == -1)
- assignIds();
-
- m_touchPoints.clear();
- Qt::TouchPointStates combinedStates;
-
- QMutableHashIterator<int, Contact> it(m_contacts);
- while (it.hasNext()) {
- it.next();
- Contact &contact(it.value());
-
- if (!contact.state)
- continue;
-
- int key = m_typeB ? it.key() : contact.trackingId;
- if (!m_typeB && m_lastContacts.contains(key)) {
- const Contact &prev(m_lastContacts.value(key));
- if (contact.state == Qt::TouchPointReleased) {
- // Copy over the previous values for released points, just in case.
- contact.x = prev.x;
- contact.y = prev.y;
- contact.maj = prev.maj;
- } else {
- contact.state = (prev.x == contact.x && prev.y == contact.y)
- ? Qt::TouchPointStationary : Qt::TouchPointMoved;
- }
- }
-
- // Avoid reporting a contact in released state more than once.
- if (!m_typeB && contact.state == Qt::TouchPointReleased
- && !m_lastContacts.contains(key)) {
- it.remove();
- continue;
- }
-
- addTouchPoint(contact, &combinedStates);
- }
-
- // Now look for contacts that have disappeared since the last sync.
- it = m_lastContacts;
- while (it.hasNext()) {
- it.next();
- Contact &contact(it.value());
- int key = m_typeB ? it.key() : contact.trackingId;
- if (!m_contacts.contains(key)) {
- contact.state = Qt::TouchPointReleased;
- addTouchPoint(contact, &combinedStates);
- }
- }
-
- // Remove contacts that have just been reported as released.
- it = m_contacts;
- while (it.hasNext()) {
- it.next();
- Contact &contact(it.value());
- if (contact.state == Qt::TouchPointReleased) {
- if (m_typeB)
- contact.state = static_cast<Qt::TouchPointState>(0);
- else
- it.remove();
- } else {
- contact.state = Qt::TouchPointStationary;
- }
- }
-
- m_lastContacts = m_contacts;
- if (!m_typeB && !m_singleTouch)
- m_contacts.clear();
-
- if (!m_touchPoints.isEmpty() && combinedStates != Qt::TouchPointStationary)
- reportPoints();
- }
-
- m_lastEventType = data->type;
-}
-
-int QEvdevTouchScreenData::findClosestContact(const QHash<int, Contact> &contacts, int x, int y, int *dist)
-{
- int minDist = -1, id = -1;
- for (QHash<int, Contact>::const_iterator it = contacts.constBegin(), ite = contacts.constEnd();
- it != ite; ++it) {
- const Contact &contact(it.value());
- int dx = x - contact.x;
- int dy = y - contact.y;
- int dist = dx * dx + dy * dy;
- if (minDist == -1 || dist < minDist) {
- minDist = dist;
- id = contact.trackingId;
- }
- }
- if (dist)
- *dist = minDist;
- return id;
-}
-
-void QEvdevTouchScreenData::assignIds()
-{
- QHash<int, Contact> candidates = m_lastContacts, pending = m_contacts, newContacts;
- int maxId = -1;
- QHash<int, Contact>::iterator it, ite, bestMatch;
- while (!pending.isEmpty() && !candidates.isEmpty()) {
- int bestDist = -1, bestId = 0;
- for (it = pending.begin(), ite = pending.end(); it != ite; ++it) {
- int dist;
- int id = findClosestContact(candidates, it->x, it->y, &dist);
- if (id >= 0 && (bestDist == -1 || dist < bestDist)) {
- bestDist = dist;
- bestId = id;
- bestMatch = it;
- }
- }
- if (bestDist >= 0) {
- bestMatch->trackingId = bestId;
- newContacts.insert(bestId, *bestMatch);
- candidates.remove(bestId);
- pending.erase(bestMatch);
- if (bestId > maxId)
- maxId = bestId;
- }
- }
- if (candidates.isEmpty()) {
- for (it = pending.begin(), ite = pending.end(); it != ite; ++it) {
- it->trackingId = ++maxId;
- newContacts.insert(it->trackingId, *it);
- }
- }
- m_contacts = newContacts;
-}
-
-void QEvdevTouchScreenData::reportPoints()
-{
- QRect winRect;
- if (m_forceToActiveWindow) {
- QWindow *win = QGuiApplication::focusWindow();
- if (!win)
- return;
- winRect = win->geometry();
- } else {
- winRect = QGuiApplication::primaryScreen()->geometry();
- }
-
- const int hw_w = hw_range_x_max - hw_range_x_min;
- const int hw_h = hw_range_y_max - hw_range_y_min;
-
- // Map the coordinates based on the normalized position. QPA expects 'area'
- // to be in screen coordinates.
- const int pointCount = m_touchPoints.count();
- for (int i = 0; i < pointCount; ++i) {
- QWindowSystemInterface::TouchPoint &tp(m_touchPoints[i]);
-
- // Generate a screen position that is always inside the active window
- // or the primary screen. Even though we report this as a QRectF, internally
- // Qt uses QRect/QPoint so we need to bound the size to winRect.size() - QSize(1, 1)
- const qreal wx = winRect.left() + tp.normalPosition.x() * (winRect.width() - 1);
- const qreal wy = winRect.top() + tp.normalPosition.y() * (winRect.height() - 1);
- const qreal sizeRatio = (winRect.width() + winRect.height()) / qreal(hw_w + hw_h);
- if (tp.area.width() == -1) // touch major was not provided
- tp.area = QRectF(0, 0, 8, 8);
- else
- tp.area = QRectF(0, 0, tp.area.width() * sizeRatio, tp.area.height() * sizeRatio);
- tp.area.moveCenter(QPointF(wx, wy));
-
- // Calculate normalized pressure.
- if (!hw_pressure_min && !hw_pressure_max)
- tp.pressure = tp.state == Qt::TouchPointReleased ? 0 : 1;
- else
- tp.pressure = (tp.pressure - hw_pressure_min) / qreal(hw_pressure_max - hw_pressure_min);
- }
-
- QWindowSystemInterface::handleTouchEvent(0, m_device, m_touchPoints);
-}
-
-
-QEvdevTouchScreenHandlerThread::QEvdevTouchScreenHandlerThread(const QString &spec, QObject *parent)
- : QThread(parent), m_spec(spec), m_handler(0)
-{
- start();
-}
-
-QEvdevTouchScreenHandlerThread::~QEvdevTouchScreenHandlerThread()
-{
- quit();
- wait();
-}
-
-void QEvdevTouchScreenHandlerThread::run()
-{
- m_handler = new QEvdevTouchScreenHandler(m_spec);
- exec();
- delete m_handler;
- m_handler = 0;
-}
-
-
-QT_END_NAMESPACE