webengine/webkitutils/stmgesturefw/inc/zoomgesturerecogniser.h
changeset 65 5bfc169077b2
parent 42 d39add9822e2
child 66 cacf6ee57968
--- 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 <rt_gestureif.h>
-#include <rt_gesturelistener.h>
-
-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_ */