| /**************************************************************************** |
| ** |
| ** 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 |
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| ** |
| ** 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 |
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| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include "mousepangesturerecognizer.h" |
| |
| #include <QEvent> |
| #include <QMouseEvent> |
| #include <QGesture> |
| |
| MousePanGestureRecognizer::MousePanGestureRecognizer() |
| { |
| } |
| |
| QGesture *MousePanGestureRecognizer::create(QObject *) |
| { |
| return new QPanGesture; |
| } |
| |
| QGestureRecognizer::Result MousePanGestureRecognizer::recognize(QGesture *state, QObject *, QEvent *event) |
| { |
| QPanGesture *g = static_cast<QPanGesture *>(state); |
| if (event->type() == QEvent::TouchBegin) { |
| // ignore the following mousepress event |
| g->setProperty("ignoreMousePress", QVariant::fromValue<bool>(true)); |
| } else if (event->type() == QEvent::TouchEnd) { |
| g->setProperty("ignoreMousePress", QVariant::fromValue<bool>(false)); |
| } |
| QMouseEvent *me = static_cast<QMouseEvent *>(event); |
| if (event->type() == QEvent::MouseButtonPress) { |
| if (g->property("ignoreMousePress").toBool()) |
| return QGestureRecognizer::Ignore; |
| g->setHotSpot(me->globalPos()); |
| g->setProperty("startPos", me->globalPos()); |
| g->setProperty("pressed", QVariant::fromValue<bool>(true)); |
| return QGestureRecognizer::TriggerGesture | QGestureRecognizer::ConsumeEventHint; |
| } else if (event->type() == QEvent::MouseMove) { |
| if (g->property("pressed").toBool()) { |
| QPoint offset = me->globalPos() - g->property("startPos").toPoint(); |
| g->setLastOffset(g->offset()); |
| g->setOffset(QPointF(offset.x(), offset.y())); |
| return QGestureRecognizer::TriggerGesture | QGestureRecognizer::ConsumeEventHint; |
| } |
| return QGestureRecognizer::CancelGesture; |
| } else if (event->type() == QEvent::MouseButtonRelease) { |
| if (g->property("pressed").toBool()) |
| return QGestureRecognizer::FinishGesture | QGestureRecognizer::ConsumeEventHint; |
| } |
| return QGestureRecognizer::Ignore; |
| } |
| |
| void MousePanGestureRecognizer::reset(QGesture *state) |
| { |
| QPanGesture *g = static_cast<QPanGesture *>(state); |
| g->setLastOffset(QPointF()); |
| g->setOffset(QPointF()); |
| g->setAcceleration(0); |
| g->setProperty("startPos", QVariant()); |
| g->setProperty("pressed", QVariant::fromValue<bool>(false)); |
| g->setProperty("ignoreMousePress", QVariant::fromValue<bool>(false)); |
| QGestureRecognizer::reset(state); |
| } |