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Diffstat (limited to 'scroller/qflickgesture.cpp')
| -rw-r--r-- | scroller/qflickgesture.cpp | 208 |
1 files changed, 0 insertions, 208 deletions
diff --git a/scroller/qflickgesture.cpp b/scroller/qflickgesture.cpp deleted file mode 100644 index 03434a2..0000000 --- a/scroller/qflickgesture.cpp +++ /dev/null @@ -1,208 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2010 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. -** -** $QT_BEGIN_LICENSE:LGPL$ -** 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 Technology Preview License Agreement accompanying -** this package. -** -** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** If you have questions regarding the use of this file, please contact -** Nokia at qt-info@nokia.com. -** -** -** -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qflickgesture.h" -#include "qgesture.h" -#include "qevent.h" -#include "qwidget.h" -#include "qabstractscrollarea.h" -#include "qdebug.h" - -QT_BEGIN_NAMESPACE - - -class QFlickGesturePrivate -{ -public: - QFlickGesturePrivate() - { - } - - QKineticScroller *scroller() - { - if (!target || !target->parent()) - return 0; - - QKineticScroller *s = target->parent()->property("kineticScroller").value<QKineticScroller *>(); - return s; - } - - QPointer<QWidget> target; - -#if QT_VERSION < 0x040700 - QTime timer; -#else - QElapsedTimer timer; -#endif - - friend class QFlickGesture; -}; - - -QFlickGestureRecognizer::QFlickGestureRecognizer() -{ -} - -QGesture *QFlickGestureRecognizer::create(QObject *target) -{ - if (target && target->isWidgetType()) { - QWidget *widget = static_cast<QWidget *>(target); -#if defined(Q_OS_WIN) && !defined(QT_NO_NATIVE_GESTURES) - // for scroll areas on Windows we want to use native gestures instead - if (!qobject_cast<QAbstractScrollArea *>(target->parent())) - widget->setAttribute(Qt::WA_AcceptTouchEvents); -#else - widget->setAttribute(Qt::WA_AcceptTouchEvents); -#endif - return new QFlickGesture(widget); - } - return new QFlickGesture(0); -} - -QGestureRecognizer::Result QFlickGestureRecognizer::recognize(QGesture *state, - QObject *, - QEvent *event) -{ - QFlickGesture *q = static_cast<QFlickGesture *>(state); - QFlickGesturePrivate *d = q->d; - - QKineticScroller *scroller = d->scroller(); - if (!scroller) - return QGestureRecognizer::Ignore; - - // eat mouse events if the scroller is active - if ((scroller->state() == QKineticScroller::StateDragging || - scroller->state() == QKineticScroller::StateScrolling) && - (event->type() != QEvent::MouseButtonPress && - event->type() != QEvent::MouseMove && - event->type() != QEvent::MouseButtonDblClick && - event->type() != QEvent::MouseButtonRelease) ) - return QGestureRecognizer::Ignore | QGestureRecognizer::ConsumeEventHint; - - // ignore all other events except touch - if (event->type() != QEvent::TouchBegin && - event->type() != QEvent::TouchEnd && - event->type() != QEvent::TouchUpdate) - return QGestureRecognizer::Ignore; - - qDebug()<<"recognize event: "<<event<<"target:"<<d->target<<"scroller:"<<d->scroller(); - - const QTouchEvent *ev = static_cast<const QTouchEvent *>(event); - QTouchEvent::TouchPoint tp = ev->touchPoints().first(); - - qint64 timestamp = d->timer.elapsed(); - - QKineticScroller::State oldState = scroller->state(); - - QGestureRecognizer::Result result = QGestureRecognizer::Ignore; - switch (event->type()) { - case QEvent::TouchBegin: - scroller->handleInput(QKineticScroller::InputPress, tp.pos(), timestamp); - break; - case QEvent::TouchEnd: - scroller->handleInput(QKineticScroller::InputRelease, tp.pos(), timestamp); - break; - case QEvent::TouchUpdate: - scroller->handleInput(QKineticScroller::InputMove, tp.pos(), timestamp); - break; - default: - break; - } - - QKineticScroller::State newState = scroller->state(); - - bool oldTriggered = (oldState == QKineticScroller::StateInactive) || - (oldState == QKineticScroller::StatePressed); - - bool newTriggered = (newState == QKineticScroller::StateInactive) || - (newState == QKineticScroller::StatePressed); - - if (event->type() == QEvent::TouchBegin && !newTriggered) - return QGestureRecognizer::MayBeGesture; - - if (event->type() == QEvent::TouchEnd && !oldTriggered) - return QGestureRecognizer::CancelGesture; - - if (!oldTriggered && !newTriggered) - return QGestureRecognizer::Ignore; - - if (oldTriggered && newTriggered) - return QGestureRecognizer::Ignore | QGestureRecognizer::ConsumeEventHint; - - if (!oldTriggered) - return QGestureRecognizer::TriggerGesture | QGestureRecognizer::ConsumeEventHint; - - return QGestureRecognizer::FinishGesture | QGestureRecognizer::ConsumeEventHint; -} - -void QFlickGestureRecognizer::reset(QGesture *state) -{ - QFlickGesture *flick = static_cast<QFlickGesture*>(state); - flick->d->target = 0; - flick->d->timer.start(); - - QGestureRecognizer::reset(state); -} - - - -/*! - \class QFlickGesture - \since 4.7 - \brief The QFlickGesture class describes a flicking gesture made by the user. - \ingroup gestures - - \sa {Gestures Programming}, QPinchGesture, QSwipeGesture -*/ - -/*! - \internal -*/ -QFlickGesture::QFlickGesture(QWidget *target, QObject *parent) - : QGesture(parent) -{ - d = new QFlickGesturePrivate(); - d->target = target; - d->timer.start(); - qDebug() << "QFlickGesture::FlickGesture for: " << target; -} - -QT_END_NAMESPACE |