diff options
Diffstat (limited to 'tests/manual/gestures/graphicsview/mousepangesturerecognizer.cpp')
-rw-r--r-- | tests/manual/gestures/graphicsview/mousepangesturerecognizer.cpp | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/tests/manual/gestures/graphicsview/mousepangesturerecognizer.cpp b/tests/manual/gestures/graphicsview/mousepangesturerecognizer.cpp new file mode 100644 index 0000000000..155f556187 --- /dev/null +++ b/tests/manual/gestures/graphicsview/mousepangesturerecognizer.cpp @@ -0,0 +1,107 @@ +/**************************************************************************** +** +** 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 test suite 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 "mousepangesturerecognizer.h" + +#include <QEvent> +#include <QVariant> +#include <QGraphicsSceneMouseEvent> +#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); + QPoint globalPos; + switch (event->type()) { + case QEvent::GraphicsSceneMousePress: + case QEvent::GraphicsSceneMouseDoubleClick: + case QEvent::GraphicsSceneMouseMove: + case QEvent::GraphicsSceneMouseRelease: + globalPos = static_cast<QGraphicsSceneMouseEvent *>(event)->screenPos(); + break; + case QEvent::MouseButtonPress: + case QEvent::MouseMove: + case QEvent::MouseButtonRelease: + globalPos = static_cast<QMouseEvent *>(event)->globalPos(); + break; + default: + break; + } + if (event->type() == QEvent::MouseButtonPress || event->type() == QEvent::MouseButtonDblClick + || event->type() == QEvent::GraphicsSceneMousePress || event->type() == QEvent::GraphicsSceneMouseDoubleClick) { + g->setHotSpot(globalPos); + g->setProperty("startPos", globalPos); + g->setProperty("pressed", QVariant::fromValue<bool>(true)); + return QGestureRecognizer::TriggerGesture | QGestureRecognizer::ConsumeEventHint; + } else if (event->type() == QEvent::MouseMove || event->type() == QEvent::GraphicsSceneMouseMove) { + if (g->property("pressed").toBool()) { + QPoint offset = 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 || event->type() == QEvent::GraphicsSceneMouseRelease) { + 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)); + QGestureRecognizer::reset(state); +} |