/* * Copyright (C) 2011 Benjamin Poulain <benjamin@webkit.org> * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef QtPinchGestureRecognizer_h #define QtPinchGestureRecognizer_h #include "QtGestureRecognizer.h" #include <QTouchEvent> #include <QtCore/QPointF> namespace WebKit { class QtPinchGestureRecognizer : public QtGestureRecognizer { public: struct TouchPointInformation { inline TouchPointInformation(); inline TouchPointInformation(const QTouchEvent::TouchPoint&); inline bool isValid() const; int id; QPointF initialScreenPosition; QPointF initialPosition; }; QtPinchGestureRecognizer(QtWebPageEventHandler*); bool update(const QTouchEvent::TouchPoint& point1, const QTouchEvent::TouchPoint& point2); void finish(); void cancel(); private: qreal m_initialFingerDistance; }; } // namespace WebKit #endif /* QtPinchGestureRecognizer_h */