diff -r 000000000000 -r 1450b09d0cfd qstmgesturelib/recognisers/qstmzoomgesturerecogniser.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/qstmgesturelib/recognisers/qstmzoomgesturerecogniser.h	Tue May 04 12:39:35 2010 +0300
@@ -0,0 +1,82 @@
+/*
+* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "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: 
+*
+*/
+
+
+#ifndef QSTMZOOMGESTURERECOGNISER_H_
+#define QSTMZOOMGESTURERECOGNISER_H_
+
+#include <qstmgestureengine_if.h>
+#include <qstmgesture_if.h>
+#include <qstmgesturelistener_if.h>
+
+namespace qstmGesture
+{
+
+/*!
+ * QStm_ZoomGestureRecogniser 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...)
+ */
+class QStm_ZoomGestureRecogniser : public QStm_GestureRecogniser
+{
+public:
+	static const QStm_GestureUid KUid = EGestureUidCornerZoom;
+
+	virtual ~QStm_ZoomGestureRecogniser();
+
+	virtual QStm_GestureRecognitionState recognise(int numOfActiveStreams, QStm_GestureEngineIf* ge) ;
+	virtual void release(QStm_GestureEngineIf* ge) ;
+	virtual QStm_GestureUid 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 QRect& 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 rangeInMm) ;
+
+	QStm_ZoomGestureRecogniser(QStm_GestureListenerIf* listener) ;
+
+	float calculateDistance(const QPoint& aTp) ;
+	int adjustZoom(float& previousDistance, float newDistance) ;
+
+private:
+	QRect         m_area ;
+	int           m_rangesizeInPixels ;
+	QStm_ZoomType m_zoomtype ;
+	bool          m_zooming ;
+	QPoint        m_startingtouch ;
+	QPoint        m_previoustouch ;
+	int           m_delta ;
+
+};
+
+} // namespace
+
+#endif /* QSTMZOOMGESTURERECOGNISER_H_ */