--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/web_plat/rt_gesturehelper_api/inc/rt_gestureobserver.h Fri Mar 19 09:52:28 2010 +0200
@@ -0,0 +1,169 @@
+/*
+* Copyright (c) 2008-2009 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: RT Gesture helper interface
+*
+*/
+
+#ifndef _RT_GESTUREOBSERVER_H_
+#define _RT_GESTUREOBSERVER_H_
+
+#include <e32std.h>
+
+namespace RT_GestureHelper
+{
+
+/// flag that indicates gesture code is a holding code
+/// clients should use MGestureEvent::IsHolding
+const TInt EFlagHold = 0x10000000;
+
+enum TGestureCode
+ {
+ // states
+ EGestureStart = 0x00000001, // gesture just started (user pressed stylus down)
+ EGestureDrag = 0x00000002, // user moved stylus (may be holding or not holding)
+ EGestureReleased = 0x00000003, // user lifted stylus while user was holding
+ // gestures
+ EGestureUnknown = 0x00000005, // gesture was not recognised
+ // these codes are sent when user lifts stylus (if holding not started)
+ EGestureTap = 0x00000006,
+ EGestureDoubleTap = 0x00000007, // only if double tap is enabled
+ // (via CGestureHelper::SetDoubleTapEnabled or
+ // CGestureControl::SetDoubleTapEnabled)
+ EGestureSwipeLeft = 0x00000008,
+ EGestureSwipeRight = 0x00000009,
+ EGestureSwipeUp = 0x0000000A,
+ EGestureSwipeDown = 0x0000000B,
+
+ EGestureFlick = 0x0000000C,
+ EGestureLongTap = 0x0000000D,
+ EGestureDrop = 0x0000000E,
+
+ // these codes are sent when user initiates holding by keeping stylus in
+ // same place for a longer duration
+ EGestureHoldLeft = EGestureSwipeLeft | EFlagHold,
+ EGestureHoldRight = EGestureSwipeRight | EFlagHold,
+ EGestureHoldUp = EGestureSwipeUp | EFlagHold,
+ EGestureHoldDown = EGestureSwipeDown | EFlagHold
+ };
+
+/**
+ * Point of float accuracy
+ */
+NONSHARABLE_STRUCT( TRealPoint )
+ {
+ inline TRealPoint();
+ inline TRealPoint( const TRealPoint& aPoint );
+ inline TRealPoint( TReal aX, TReal aY );
+ inline TBool operator==( const TRealPoint& aPoint ) const;
+
+ TReal32 iX;
+ TReal32 iY;
+ };
+
+/**
+ * a gesture event
+ */
+
+enum TAxis
+ {
+ EAxisBoth,
+ EAxisHorizontal,
+ EAxisVertical
+ };
+
+
+class TGestureEvent
+{
+public:
+ inline TGestureCode Code( TAxis /*aRelevantAxis*/ ) const { return iCode; };
+ inline TBool IsHolding() const { return iIsHolding; };
+ inline TPoint StartPos() const { return iStartPos; };
+ inline TPoint CurrentPos() const { return iCurrPos; };
+ inline TRealPoint Speed() const { return iSpeed; };
+ inline TRealPoint SpeedPercent ( const TRect& /*aEdges*/ ) const { return iSpeedPercent; };
+ inline TPoint Distance() const { return iDistance; };
+
+ inline void SetCurrentPos(TPoint aPos) { iCurrPos = aPos; };
+ inline void SetStartPos(TPoint aPos) {iStartPos = aPos; };
+ inline void SetCode(TGestureCode aCode) {iCode = aCode; };
+ inline void SetSpeed(TRealPoint aSpeed) { iSpeed = aSpeed; };
+ inline void SetDistance(TPoint aDistance) { iDistance = aDistance; };
+ inline void SetSpeedPercent(TRealPoint aSpeedPercent) { iSpeedPercent = aSpeedPercent; };
+
+ inline void SetIsHolding(TBool aIsHolding) { iIsHolding = aIsHolding; };
+
+private:
+ TGestureCode iCode;
+ TBool iIsHolding;
+ TPoint iStartPos;
+ TPoint iCurrPos;
+ TRealPoint iSpeed;
+ TRealPoint iSpeedPercent;
+ TPoint iDistance;
+};
+
+
+/**
+ * Observer that will be notified when user makes gestures
+ */
+class MGestureObserver
+ {
+public:
+ /**
+ * Handle the gesture event
+ * @param aEvent event describing the gesture
+ */
+ virtual void HandleGestureL( const TGestureEvent& aEvent ) = 0;
+ };
+
+// ----------------------------------------------------------------------------
+// Default constructor for real point
+// ----------------------------------------------------------------------------
+//
+inline TRealPoint::TRealPoint()
+ : iX( 0 ), iY( 0 )
+ {
+ }
+
+// ----------------------------------------------------------------------------
+// Copy constructor for real point
+// ----------------------------------------------------------------------------
+//
+inline TRealPoint::TRealPoint( const TRealPoint& aPoint )
+ : iX( aPoint.iX ), iY( aPoint.iY )
+ {
+ }
+
+// ----------------------------------------------------------------------------
+// Copy constructor for real point
+// ----------------------------------------------------------------------------
+//
+inline TRealPoint::TRealPoint( TReal aX, TReal aY )
+ : iX( aX ), iY( aY )
+ {
+ }
+
+// ----------------------------------------------------------------------------
+// Default constructor for real point
+// ----------------------------------------------------------------------------
+//
+inline TBool TRealPoint::operator==( const TRealPoint& aPoint ) const
+ {
+ return iX == aPoint.iX && iY == aPoint.iY;
+ }
+
+
+} // namespace RT_GestureHelper
+
+#endif // _RT_GESTUREOBSERVER_H_