| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the test suite of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:GPL-EXCEPT$ |
| ** 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 The Qt Company. For licensing terms |
| ** and conditions see https://www.qt.io/terms-conditions. For further |
| ** information use the contact form at https://www.qt.io/contact-us. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 3 as published by the Free Software |
| ** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT |
| ** included in the packaging of this file. Please review the following |
| ** information to ensure the GNU General Public License requirements will |
| ** be met: https://www.gnu.org/licenses/gpl-3.0.html. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include "gestures.h" |
| |
| #include <QTouchEvent> |
| |
| Qt::GestureType ThreeFingerSlideGesture::Type = Qt::CustomGesture; |
| |
| QGesture *ThreeFingerSlideGestureRecognizer::create(QObject *) |
| { |
| return new ThreeFingerSlideGesture; |
| } |
| |
| QGestureRecognizer::Result ThreeFingerSlideGestureRecognizer::recognize(QGesture *state, QObject *, QEvent *event) |
| { |
| ThreeFingerSlideGesture *d = static_cast<ThreeFingerSlideGesture *>(state); |
| QGestureRecognizer::Result result; |
| switch (event->type()) { |
| case QEvent::TouchBegin: |
| result = QGestureRecognizer::MayBeGesture; |
| break; |
| case QEvent::TouchEnd: |
| if (d->gestureFired) |
| result = QGestureRecognizer::FinishGesture; |
| else |
| result = QGestureRecognizer::CancelGesture; |
| break; |
| case QEvent::TouchUpdate: |
| if (d->state() != Qt::NoGesture) { |
| QTouchEvent *ev = static_cast<QTouchEvent*>(event); |
| if (ev->touchPoints().size() == 3) { |
| d->gestureFired = true; |
| result = QGestureRecognizer::TriggerGesture; |
| } else { |
| result = QGestureRecognizer::MayBeGesture; |
| for (int i = 0; i < ev->touchPoints().size(); ++i) { |
| const QTouchEvent::TouchPoint &pt = ev->touchPoints().at(i); |
| const int distance = (pt.pos().toPoint() - pt.startPos().toPoint()).manhattanLength(); |
| if (distance > 20) { |
| result = QGestureRecognizer::CancelGesture; |
| } |
| } |
| } |
| } else { |
| result = QGestureRecognizer::CancelGesture; |
| } |
| |
| break; |
| case QEvent::MouseButtonPress: |
| case QEvent::MouseButtonRelease: |
| case QEvent::MouseMove: |
| if (d->state() != Qt::NoGesture) |
| result = QGestureRecognizer::Ignore; |
| else |
| result = QGestureRecognizer::CancelGesture; |
| break; |
| default: |
| result = QGestureRecognizer::Ignore; |
| break; |
| } |
| return result; |
| } |
| |
| void ThreeFingerSlideGestureRecognizer::reset(QGesture *state) |
| { |
| static_cast<ThreeFingerSlideGesture *>(state)->gestureFired = false; |
| QGestureRecognizer::reset(state); |
| } |
| |
| |
| QGesture *RotateGestureRecognizer::create(QObject *) |
| { |
| return new QGesture; |
| } |
| |
| QGestureRecognizer::Result RotateGestureRecognizer::recognize(QGesture *, QObject *, QEvent *event) |
| { |
| switch (event->type()) { |
| case QEvent::TouchBegin: |
| case QEvent::TouchEnd: |
| case QEvent::TouchUpdate: |
| break; |
| default: |
| break; |
| } |
| return QGestureRecognizer::Ignore; |
| } |
| |
| void RotateGestureRecognizer::reset(QGesture *state) |
| { |
| QGestureRecognizer::reset(state); |
| } |
| |
| #include "moc_gestures.cpp" |