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Diffstat (limited to 'src/gui/embedded/qmousetslib_qws.cpp')
| -rw-r--r-- | src/gui/embedded/qmousetslib_qws.cpp | 371 |
1 files changed, 0 insertions, 371 deletions
diff --git a/src/gui/embedded/qmousetslib_qws.cpp b/src/gui/embedded/qmousetslib_qws.cpp deleted file mode 100644 index 5e2cce1d5c..0000000000 --- a/src/gui/embedded/qmousetslib_qws.cpp +++ /dev/null @@ -1,371 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the QtGui module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** GNU Lesser General Public License Usage -** This file may be used under the terms of the GNU Lesser General Public -** License version 2.1 as published by the Free Software Foundation and -** appearing in the file LICENSE.LGPL included in the packaging of this -** file. Please review the following information to ensure the GNU Lesser -** General Public License version 2.1 requirements will be met: -** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain additional -** rights. These rights are described in the Nokia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU General -** Public License version 3.0 as published by the Free Software Foundation -** and appearing in the file LICENSE.GPL included in the packaging of this -** file. Please review the following information to ensure the GNU General -** Public License version 3.0 requirements will be met: -** http://www.gnu.org/copyleft/gpl.html. -** -** Other Usage -** Alternatively, this file may be used in accordance with the terms and -** conditions contained in a signed written agreement between you and Nokia. -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qmousetslib_qws.h" - -#if !defined(QT_NO_QWS_MOUSE_TSLIB) || defined(QT_PLUGIN) - -#include <QtCore/qregexp.h> -#include <QtCore/qstringlist.h> -#include "qsocketnotifier.h" -#include "qscreen_qws.h" - -#include <tslib.h> -#include <errno.h> - -QT_BEGIN_NAMESPACE - -#ifdef TSLIBMOUSEHANDLER_DEBUG -# include <QtCore/QDebug> -#endif - -/*! - \internal - - \class QWSTslibMouseHandler - \ingroup qws - - \brief The QWSTslibMouseHandler class implements a mouse driver - for the Universal Touch Screen Library, tslib. - - QWSTslibMouseHandler inherits the QWSCalibratedMouseHandler class, - providing calibration and noise reduction functionality in - addition to generating mouse events, for devices using the - Universal Touch Screen Library. - - To be able to compile this mouse handler, \l{Qt for Embedded Linux} - must be configured with the \c -qt-mouse-tslib option, see the - \l{Pointer Handling} documentation for details. In addition, the tslib - headers and library must be present in the build environment. The - tslib sources can be downloaded from \l - {http://tslib.berlios.de/}. Use the \c -L and \c -I options - with \c configure to explicitly specify the location of the - library and its headers: - - \snippet doc/src/snippets/code/src_gui_embedded_qmousetslib_qws.cpp 0 - - In order to use this mouse handler, tslib must also be correctly - installed on the target machine. This includes providing a \c - ts.conf configuration file and setting the necessary environment - variables, see the README file provided with tslib for details. - - The ts.conf file will usually contain the following two lines - - \snippet doc/src/snippets/code/src_gui_embedded_qmousetslib_qws.cpp 1 - - To make \l{Qt for Embedded Linux} explicitly choose the tslib mouse - handler, set the QWS_MOUSE_PROTO environment variable. - - \sa {Pointer Handling}, {Qt for Embedded Linux} -*/ - -class QWSTslibMouseHandlerPrivate : public QObject -{ - Q_OBJECT -public: - QWSTslibMouseHandlerPrivate(QWSTslibMouseHandler *h, - const QString &device); - ~QWSTslibMouseHandlerPrivate(); - - void suspend(); - void resume(); - - void calibrate(const QWSPointerCalibrationData *data); - void clearCalibration(); - -private: - QWSTslibMouseHandler *handler; - struct tsdev *dev; - QSocketNotifier *mouseNotifier; - int jitter_limit; - - struct ts_sample lastSample; - bool wasPressed; - int lastdx; - int lastdy; - - bool calibrated; - QString devName; - - bool open(); - void close(); - inline bool get_sample(struct ts_sample *sample); - -private slots: - void readMouseData(); -}; - -QWSTslibMouseHandlerPrivate::QWSTslibMouseHandlerPrivate(QWSTslibMouseHandler *h, - const QString &device) - : handler(h), dev(0), mouseNotifier(0), jitter_limit(3) -{ - QStringList args = device.split(QLatin1Char(':'), QString::SkipEmptyParts); - QRegExp jitterRegex(QLatin1String("^jitter_limit=(\\d+)$")); - int index = args.indexOf(jitterRegex); - if (index >= 0) { - jitter_limit = jitterRegex.cap(1).toInt(); - args.removeAt(index); - } - - devName = args.join(QString()); - - if (devName.isNull()) { - const char *str = getenv("TSLIB_TSDEVICE"); - if (str) - devName = QString::fromLocal8Bit(str); - } - - if (devName.isNull()) - devName = QLatin1String("/dev/ts"); - - if (!open()) - return; - - calibrated = true; - - int fd = ts_fd(dev); - mouseNotifier = new QSocketNotifier(fd, QSocketNotifier::Read, this); - connect(mouseNotifier, SIGNAL(activated(int)),this, SLOT(readMouseData())); - resume(); -} - -QWSTslibMouseHandlerPrivate::~QWSTslibMouseHandlerPrivate() -{ - close(); -} - -bool QWSTslibMouseHandlerPrivate::open() -{ - dev = ts_open(devName.toLocal8Bit().constData(), 1); - if (!dev) { - qCritical("QWSTslibMouseHandlerPrivate: ts_open() failed" - " with error: '%s'", strerror(errno)); - qCritical("Please check your tslib installation!"); - return false; - } - - if (ts_config(dev)) { - qCritical("QWSTslibMouseHandlerPrivate: ts_config() failed" - " with error: '%s'", strerror(errno)); - qCritical("Please check your tslib installation!"); - close(); - return false; - } - - return true; -} - -void QWSTslibMouseHandlerPrivate::close() -{ - if (dev) - ts_close(dev); -} - -void QWSTslibMouseHandlerPrivate::suspend() -{ - if (mouseNotifier) - mouseNotifier->setEnabled(false); -} - -void QWSTslibMouseHandlerPrivate::resume() -{ - memset(&lastSample, 0, sizeof(lastSample)); - wasPressed = false; - lastdx = 0; - lastdy = 0; - if (mouseNotifier) - mouseNotifier->setEnabled(true); -} - -bool QWSTslibMouseHandlerPrivate::get_sample(struct ts_sample *sample) -{ - if (!calibrated) - return (ts_read_raw(dev, sample, 1) == 1); - - return (ts_read(dev, sample, 1) == 1); -} - -void QWSTslibMouseHandlerPrivate::readMouseData() -{ - if (!qt_screen) - return; - - for(;;) { - struct ts_sample sample = lastSample; - bool pressed = wasPressed; - - // Fast return if there's no events. - if (!get_sample(&sample)) - return; - pressed = (sample.pressure > 0); - - // Only return last sample unless there's a press/release event. - while (pressed == wasPressed) { - if (!get_sample(&sample)) - break; - pressed = (sample.pressure > 0); - } - - // work around missing coordinates on mouse release in raw mode - if (!calibrated && !pressed && sample.x == 0 && sample.y == 0) { - sample.x = lastSample.x; - sample.y = lastSample.y; - } - - int dx = sample.x - lastSample.x; - int dy = sample.y - lastSample.y; - - // Remove small movements in oppsite direction - if (dx * lastdx < 0 && qAbs(dx) < jitter_limit) { - sample.x = lastSample.x; - dx = 0; - } - if (dy * lastdy < 0 && qAbs(dy) < jitter_limit) { - sample.y = lastSample.y; - dy = 0; - } - - if (wasPressed == pressed && dx == 0 && dy == 0) - return; - -#ifdef TSLIBMOUSEHANDLER_DEBUG - qDebug() << "last" << QPoint(lastSample.x, lastSample.y) - << "curr" << QPoint(sample.x, sample.y) - << "dx,dy" << QPoint(dx, dy) - << "ddx,ddy" << QPoint(dx*lastdx, dy*lastdy) - << "pressed" << wasPressed << pressed; -#endif - - lastSample = sample; - wasPressed = pressed; - if (dx != 0) - lastdx = dx; - if (dy != 0) - lastdy = dy; - - const QPoint p(sample.x, sample.y); - if (calibrated) { - // tslib should do all the translation and filtering, so we send a - // "raw" mouse event - handler->QWSMouseHandler::mouseChanged(p, pressed); - } else { - handler->sendFiltered(p, pressed); - } - } -} - -void QWSTslibMouseHandlerPrivate::clearCalibration() -{ - suspend(); - close(); - handler->QWSCalibratedMouseHandler::clearCalibration(); - calibrated = false; - open(); - resume(); -} - -void QWSTslibMouseHandlerPrivate::calibrate(const QWSPointerCalibrationData *data) -{ - suspend(); - close(); - // default implementation writes to /etc/pointercal - // using the same format as the tslib linear module. - handler->QWSCalibratedMouseHandler::calibrate(data); - calibrated = true; - open(); - resume(); -} - -/*! - \internal -*/ -QWSTslibMouseHandler::QWSTslibMouseHandler(const QString &driver, - const QString &device) - : QWSCalibratedMouseHandler(driver, device) -{ - d = new QWSTslibMouseHandlerPrivate(this, device); -} - -/*! - \internal -*/ -QWSTslibMouseHandler::~QWSTslibMouseHandler() -{ - delete d; -} - -/*! - \reimp -*/ -void QWSTslibMouseHandler::suspend() -{ - d->suspend(); -} - -/*! - \reimp -*/ -void QWSTslibMouseHandler::resume() -{ - d->resume(); -} - -/*! - \reimp -*/ -void QWSTslibMouseHandler::clearCalibration() -{ - d->clearCalibration(); -} - -/*! - \reimp -*/ -void QWSTslibMouseHandler::calibrate(const QWSPointerCalibrationData *data) -{ - d->calibrate(data); -} - -QT_END_NAMESPACE - -#include "qmousetslib_qws.moc" - -#endif //QT_NO_QWS_MOUSE_TSLIB |