windowing/windowserver/nga/CLIENT/advancedpointerevent.cpp
changeset 0 5d03bc08d59c
child 41 de3d5b6102ac
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/windowing/windowserver/nga/CLIENT/advancedpointerevent.cpp	Tue Feb 02 01:47:50 2010 +0200
@@ -0,0 +1,121 @@
+// 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 "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:
+// TAdvancedPointerEvent encapsulates additional information to that contained in TPointerEvent.
+// For multi-touch, pressure and proximity.
+// 
+//
+
+#include "W32STD.H"
+#include "advancedpointerevent.inl"
+
+EXPORT_C TInt TAdvancedPointerEvent::DoGetPointerNumber() const
+/** Gets the pointer number for the event
+  
+  @return TInt. The pointer number for the event
+  @internalTechnology */
+	{
+	return iData.multiPos3D.iPointerNumber;
+	}
+
+EXPORT_C TInt TAdvancedPointerEvent::DoGetProximity() const
+/** Gets the pointer event proximity
+  
+  @return TInt.  The pointer event proximity
+  @internalTechnology */
+	{
+	return Min(iData.multiPos3D.iPosZ,EPressureProximityCrossover);
+	}
+
+EXPORT_C TInt TAdvancedPointerEvent::DoGetPressure() const
+/** Gets the pointer event pressure
+  
+  @return TInt.  The pointer event pressure
+  @internalTechnology */
+	{
+	return Max(iData.multiPos3D.iPosZ,EPressureProximityCrossover);
+	}
+
+EXPORT_C TInt TAdvancedPointerEvent::DoGetProximityAndPressure() const
+/** Gets the pointer event combined proximity and pressure.
+  
+  Negative values are proximity, positive values are pressure.
+  
+  @return TInt.  The pointer event combined proximity and pressure
+  @internalTechnology */
+	{
+	return iData.multiPos3D.iPosZ;
+	}
+
+EXPORT_C TAdvancedPointerEvent::TAdvancedPointerEvent(const TAdvancedPointerEvent& aPointerEvent)
+/** Copy Constructor for TAdvancedPointerEvent
+  
+  @param  const TAdvancedPointerEvent& aPointerEvent.  The event to copy.
+  @internalTechnology */
+	{
+	Copy(aPointerEvent);
+	}
+
+EXPORT_C TAdvancedPointerEvent& TAdvancedPointerEvent::operator=(const TAdvancedPointerEvent& aPointerEvent) // Operator = overload
+/** Operator= overload for TAdvancedPointerEvent
+  
+  @param  const TAdvancedPointerEvent& aPointerEvent.  The event to copy.
+  @internalTechnology */
+	{
+	if(this != &aPointerEvent)
+		{
+		Copy(aPointerEvent);
+		}
+	return *this;
+	}
+
+EXPORT_C void TWsEvent::InitAdvancedPointerEvent(TPointerEvent::TType aType, TUint aModifiers, const TPoint3D &aPoint3D, TUint8 aPointerNumber)
+/** Initializes TAdvancedPointerEvent contained in this TWsEvent.
+ @param aType type of TAdvancedPointerEvent
+ @param aModifiers the state of the modifier keys at the time when the event occured, 
+                   defined in TEventModifier
+ @param aPoint3D x and y coordinates of the pointer plus z coordinate representing proximity of the pointer
+                 combined with its pressure, as returned by TAdvancedPointerEvent::PositionAndPressure3D()
+ @param aPointerNumber pointer number of the pointer whose state change is described by this event
+ @see TWsEvent::Pointer()
+ @see TAdvancedPointerEvent::PositionAndPressure3D()
+ @see TAdvancedPointerEvent::PointerNumber()
+ @publishedPartner To become publishedAll with WSERV NGA APIs
+ @prototype To become released with WSERV NGA APIs */
+	{
+	Pointer()->Init(aType, aModifiers, aPoint3D, aPointerNumber);
+	}
+
+EXPORT_C void TWsEvent::SetPointerNumber(TUint8 aPointerNumber)
+/** Changes pointer number of TAdvancedPointerEvent contained in this TWsEvent.
+ @param aPointerNumber new pointer number to set in TAdvancedPointerEvent contained in this
+                       TWsEvent
+ @see TWsEvent::Pointer()
+ @see TAdvancedPointerEvent::PointerNumber()
+ @publishedPartner To become publishedAll with WSERV NGA APIs
+ @prototype To become released with WSERV NGA APIs */
+	{
+	Pointer()->SetPointerNumber(aPointerNumber);
+	}
+
+EXPORT_C void TWsEvent::SetPointerZ(TInt aZ)
+/** Changes pressure and proximity of TAdvancedPointerEvent contained in this TWsEvent.
+ @param aZ new pressure and proximity to set, combined the same way as returned
+           by TAdvancedPointerEvent::ProximityAndPressure()
+ @see TWsEvent::Pointer()
+ @see TAdvancedPointerEvent::ProximityAndPressure()
+ @publishedPartner To become publishedAll with WSERV NGA APIs
+ @prototype To become released with WSERV NGA APIs */
+	{
+	Pointer()->SetPointerZ(aZ);
+	}