diff -r d39add9822e2 -r 5bfc169077b2 webengine/webkitutils/stmgesturefw/inc/zoomgesturerecogniser.h --- a/webengine/webkitutils/stmgesturefw/inc/zoomgesturerecogniser.h Tue Feb 02 00:56:45 2010 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,92 +0,0 @@ -/* -* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies). -* All rights reserved. -* This component and the accompanying materials are made available -* under the terms of the License "Eclipse Public License v1.0" -* which accompanies this distribution, and is available -* at the URL "http://www.eclipse.org/legal/epl-v10.html". -* -* Initial Contributors: -* Nokia Corporation - initial contribution. -* -* Contributors: -* -* Description: Zoom Gesture Recognizer -* -*/ - -#ifndef ZOOMGESTURERECOGNISER_H_ -#define ZOOMGESTURERECOGNISER_H_ - -#include "rt_gestureengineif.h" -#include -#include - -class CCoeControl ; - -namespace stmGesture -{ - -/*! - * CZoomGestureRecogniser handles zoomin gesture: start from near lower left / upper right corner and drag - * This is useful if one wants to implement single handed zooming so can be done using thumb - * (no need to use pinch i.e. hold device in one hand and use two fingers of the other) - * Current spec is: - * - touch lower left corner and start dragging => initialize ZOOM IN - * - touch upper right corner and start dragging => initialize ZOOM OUT - * store the touch point and then calculate the distance until release - * The distance is the zoom factor (probably needs some adjustment, not just the pixels...) - */ -NONSHARABLE_CLASS( CZoomGestureRecogniser ): public CGestureRecogniser -{ -public: - static const TGestureUid KUid = EGestureUidCornerZoom; - - /** Two-phase constructor */ - static CZoomGestureRecogniser* NewL(MGestureListener* aListener); - virtual ~CZoomGestureRecogniser(); - - /*! - * MGestureRecogniserIf methods - */ - virtual TGestureRecognitionState recognise(int numOfActiveStreams, MGestureEngineIf* ge) ; - virtual void release(MGestureEngineIf* ge) ; - virtual TGestureUid gestureUid() const - { - return KUid; - } - - /*! - * Additional methods to set up zoom in gesture recogniser: - * define the rectangle where the lower left corner is - * \param theArea - */ - void setArea(const TRect& theArea) ; - - /*! - * Additional methods to set up zoom in gesture recogniser: - * Define how close to the lower left corner the touch must happen - * \param rangeInPixels - */ - void setRange(int rangeInPixels) ; - -private: - CZoomGestureRecogniser(MGestureListener* aListener) ; - - float calculateDistance(const TPoint& aTp) ; - int adjustZoom(float& aPreviousDistance, float aNewDistance) ; - -private: - TRect m_area ; - int m_rangesizeInPixels ; - TZoomType m_zoomtype ; - bool m_zooming ; - TPoint m_startingtouch ; - TPoint m_previoustouch ; - int m_delta ; - -}; - -} // namespace - -#endif /* ZOOMGESTURERECOGNISER_H_ */