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author	M. Scot Breitenfeld <brtnfld@hdfgroup.org>	2018-06-08 19:45:23 (GMT)
committer	M. Scot Breitenfeld <brtnfld@hdfgroup.org>	2018-06-08 19:45:23 (GMT)
commit	fe325fb554eddceccfa1674d804d5c7aed846bde (patch)
tree	c5f191e25f44bdac61cfd590414cface520e6058 /examples/h5_extlink.c
parent	e6aa306354b3b0f2fb707fd49351b7c08c1f49a2 (diff)
download	hdf5-fe325fb554eddceccfa1674d804d5c7aed846bde.zip hdf5-fe325fb554eddceccfa1674d804d5c7aed846bde.tar.gz hdf5-fe325fb554eddceccfa1674d804d5c7aed846bde.tar.bz2

HDFFV-10405: Using h5fget_obj_count_f with a file id of H5F_OBJ_ALL_F does not work properly

misc. clean-up

Diffstat (limited to 'examples/h5_extlink.c')

0 files changed, 0 insertions, 0 deletions

/**************************************************************************** ** ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). ** Contact: Qt Software Information (qt-info@nokia.com) ** ** This file is part of the QtGui module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** No Commercial Usage ** This file contains pre-release code and may not be distributed. ** You may use this file in accordance with the terms and conditions ** contained in the either Technology Preview License Agreement or the ** Beta Release License Agreement. ** ** 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 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 1.0, 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. ** ** If you are unsure which license is appropriate for your use, please ** contact the sales department at qt-sales@nokia.com. ** $QT_END_LICENSE$ ** ****************************************************************************/ #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


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