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-/****************************************************************************
-**
-** 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 "qmacgesturerecognizer_mac_p.h"
-#include "qgesture.h"
-#include "qgesture_p.h"
-#include "qevent.h"
-#include "qevent_p.h"
-#include "qwidget.h"
-#include "qdebug.h"
-
-#ifndef QT_NO_GESTURES
-
-QT_BEGIN_NAMESPACE
-
-QMacSwipeGestureRecognizer::QMacSwipeGestureRecognizer()
-{
-}
-
-QGesture *QMacSwipeGestureRecognizer::create(QObject * /*target*/)
-{
- return new QSwipeGesture;
-}
-
-QGestureRecognizer::Result
-QMacSwipeGestureRecognizer::recognize(QGesture *gesture, QObject *obj, QEvent *event)
-{
- if (event->type() == QEvent::NativeGesture && obj->isWidgetType()) {
- QNativeGestureEvent *ev = static_cast<QNativeGestureEvent*>(event);
- switch (ev->gestureType) {
- case QNativeGestureEvent::Swipe: {
- QSwipeGesture *g = static_cast<QSwipeGesture *>(gesture);
- g->setSwipeAngle(ev->angle);
- g->setHotSpot(ev->position);
- return QGestureRecognizer::FinishGesture | QGestureRecognizer::ConsumeEventHint;
- break; }
- default:
- break;
- }
- }
-
- return QGestureRecognizer::Ignore;
-}
-
-void QMacSwipeGestureRecognizer::reset(QGesture *gesture)
-{
- QSwipeGesture *g = static_cast<QSwipeGesture *>(gesture);
- g->setSwipeAngle(0);
- QGestureRecognizer::reset(gesture);
-}
-
-////////////////////////////////////////////////////////////////////////
-
-QMacPinchGestureRecognizer::QMacPinchGestureRecognizer()
-{
-}
-
-QGesture *QMacPinchGestureRecognizer::create(QObject * /*target*/)
-{
- return new QPinchGesture;
-}
-
-QGestureRecognizer::Result
-QMacPinchGestureRecognizer::recognize(QGesture *gesture, QObject *obj, QEvent *event)
-{
- if (event->type() == QEvent::NativeGesture && obj->isWidgetType()) {
- QPinchGesture *g = static_cast<QPinchGesture *>(gesture);
- QNativeGestureEvent *ev = static_cast<QNativeGestureEvent*>(event);
- switch(ev->gestureType) {
- case QNativeGestureEvent::GestureBegin:
- reset(gesture);
- g->setStartCenterPoint(static_cast<QWidget*>(obj)->mapFromGlobal(ev->position));
- g->setCenterPoint(g->startCenterPoint());
- g->setChangeFlags(QPinchGesture::CenterPointChanged);
- g->setTotalChangeFlags(g->totalChangeFlags() | g->changeFlags());
- g->setHotSpot(ev->position);
- return QGestureRecognizer::MayBeGesture | QGestureRecognizer::ConsumeEventHint;
- case QNativeGestureEvent::Rotate: {
- g->setLastScaleFactor(g->scaleFactor());
- g->setLastRotationAngle(g->rotationAngle());
- g->setRotationAngle(g->rotationAngle() + ev->percentage);
- g->setChangeFlags(QPinchGesture::RotationAngleChanged);
- g->setTotalChangeFlags(g->totalChangeFlags() | g->changeFlags());
- g->setHotSpot(ev->position);
- return QGestureRecognizer::TriggerGesture | QGestureRecognizer::ConsumeEventHint;
- }
- case QNativeGestureEvent::Zoom:
- g->setLastScaleFactor(g->scaleFactor());
- g->setLastRotationAngle(g->rotationAngle());
- g->setScaleFactor(g->scaleFactor() * (1 + ev->percentage));
- g->setChangeFlags(QPinchGesture::ScaleFactorChanged);
- g->setTotalChangeFlags(g->totalChangeFlags() | g->changeFlags());
- g->setHotSpot(ev->position);
- return QGestureRecognizer::TriggerGesture | QGestureRecognizer::ConsumeEventHint;
- case QNativeGestureEvent::GestureEnd:
- return QGestureRecognizer::FinishGesture | QGestureRecognizer::ConsumeEventHint;
- default:
- break;
- }
- }
-
- return QGestureRecognizer::Ignore;
-}
-
-void QMacPinchGestureRecognizer::reset(QGesture *gesture)
-{
- QPinchGesture *g = static_cast<QPinchGesture *>(gesture);
- g->setChangeFlags(0);
- g->setTotalChangeFlags(0);
- g->setScaleFactor(1.0f);
- g->setTotalScaleFactor(1.0f);
- g->setLastScaleFactor(1.0f);
- g->setRotationAngle(0.0f);
- g->setTotalRotationAngle(0.0f);
- g->setLastRotationAngle(0.0f);
- g->setCenterPoint(QPointF());
- g->setStartCenterPoint(QPointF());
- g->setLastCenterPoint(QPointF());
- QGestureRecognizer::reset(gesture);
-}
-
-////////////////////////////////////////////////////////////////////////
-
-#if defined(QT_MAC_USE_COCOA)
-
-QMacPanGestureRecognizer::QMacPanGestureRecognizer() : _panCanceled(true)
-{
-}
-
-QGesture *QMacPanGestureRecognizer::create(QObject *target)
-{
- if (!target)
- return new QPanGesture;
-
- if (QWidget *w = qobject_cast<QWidget *>(target)) {
- w->setAttribute(Qt::WA_AcceptTouchEvents);
- w->setAttribute(Qt::WA_TouchPadAcceptSingleTouchEvents);
- return new QPanGesture;
- }
- return 0;
-}
-
-QGestureRecognizer::Result
-QMacPanGestureRecognizer::recognize(QGesture *gesture, QObject *target, QEvent *event)
-{
- const int panBeginDelay = 300;
- const int panBeginRadius = 3;
-
- QPanGesture *g = static_cast<QPanGesture *>(gesture);
-
- switch (event->type()) {
- case QEvent::TouchBegin: {
- const QTouchEvent *ev = static_cast<const QTouchEvent*>(event);
- if (ev->touchPoints().size() == 1) {
- reset(gesture);
- _startPos = QCursor::pos();
- _panTimer.start(panBeginDelay, target);
- _panCanceled = false;
- return QGestureRecognizer::MayBeGesture;
- }
- break;}
- case QEvent::TouchEnd: {
- if (_panCanceled)
- break;
-
- const QTouchEvent *ev = static_cast<const QTouchEvent*>(event);
- if (ev->touchPoints().size() == 1)
- return QGestureRecognizer::FinishGesture;
- break;}
- case QEvent::TouchUpdate: {
- if (_panCanceled)
- break;
-
- const QTouchEvent *ev = static_cast<const QTouchEvent*>(event);
- if (ev->touchPoints().size() == 1) {
- if (_panTimer.isActive()) {
- // INVARIANT: Still in maybeGesture. Check if the user
- // moved his finger so much that it makes sense to cancel the pan:
- const QPointF p = QCursor::pos();
- if ((p - _startPos).manhattanLength() > panBeginRadius) {
- _panCanceled = true;
- _panTimer.stop();
- return QGestureRecognizer::CancelGesture;
- }
- } else {
- const QPointF p = QCursor::pos();
- const QPointF posOffset = p - _startPos;
- g->setLastOffset(g->offset());
- g->setOffset(QPointF(posOffset.x(), posOffset.y()));
- g->setHotSpot(_startPos);
- return QGestureRecognizer::TriggerGesture;
- }
- } else if (_panTimer.isActive()) {
- // I only want to cancel the pan if the user is pressing
- // more than one finger, and the pan hasn't started yet:
- _panCanceled = true;
- _panTimer.stop();
- return QGestureRecognizer::CancelGesture;
- }
- break;}
- case QEvent::Timer: {
- QTimerEvent *ev = static_cast<QTimerEvent *>(event);
- if (ev->timerId() == _panTimer.timerId()) {
- _panTimer.stop();
- if (_panCanceled)
- break;
- // Begin new pan session!
- _startPos = QCursor::pos();
- g->setHotSpot(_startPos);
- return QGestureRecognizer::TriggerGesture | QGestureRecognizer::ConsumeEventHint;
- }
- break; }
- default:
- break;
- }
-
- return QGestureRecognizer::Ignore;
-}
-
-void QMacPanGestureRecognizer::reset(QGesture *gesture)
-{
- QPanGesture *g = static_cast<QPanGesture *>(gesture);
- _startPos = QPointF();
- _panCanceled = true;
- g->setOffset(QPointF(0, 0));
- g->setLastOffset(QPointF(0, 0));
- g->setAcceleration(qreal(1));
- QGestureRecognizer::reset(gesture);
-}
-#endif // QT_MAC_USE_COCOA
-
-QT_END_NAMESPACE
-
-#endif // QT_NO_GESTURES
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