--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/idlehomescreen/xmluirendering/uiengine/inc/xnscrollablecontroladapter.h Thu Dec 17 08:40:49 2009 +0200
@@ -0,0 +1,231 @@
+/*
+* 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 "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: Scrollable control adapter
+*
+*/
+
+#ifndef __XNSCROLLABLECONTROLADAPTER_H__
+#define __XNSCROLLABLECONTROLADAPTER_H__
+
+// INCLUDES
+#include "xncontroladapter.h"
+#include <e32base.h>
+#include <aknphysicsobserveriface.h>
+#include <coeccntx.h>
+
+// FORWARD DECLARATIONS
+class CXnNodePluginIf;
+class CXnUiEngine;
+class CXnNode;
+class CAknPhysics;
+
+
+// CLASS DECLARATION
+
+/**
+* @ingroup group_xnlayoutengine
+* Popup Control adapter interface class
+* @lib xnlayoutengine.lib
+* @since Series 60 5.0
+*/
+NONSHARABLE_CLASS( CXnScrollableControlAdapter ) : public CXnControlAdapter,
+ public MAknPhysicsObserver, public MCoeControlContext, public MCoeControlHitTest
+ {
+ public: // Constructors and destructor
+ /**
+ * Two-phased constructor.
+ */
+ static CXnScrollableControlAdapter* NewL( CXnNodePluginIf& aNode );
+
+ /**
+ * Destructor.
+ */
+ ~CXnScrollableControlAdapter();
+
+ private: // Functions from base classes
+
+ /**
+ * see CCoeControl
+ */
+ void HandlePointerEventL(const TPointerEvent& aPointerEvent);
+
+ /**
+ * see CCoeControl
+ */
+ void Draw(const TRect& aRect) const;
+
+ /**
+ * see CCoeControl
+ */
+ void SizeChanged();
+
+ /**
+ * @see CCoeControl documentation
+ */
+ void MakeVisible( TBool aVisible );
+
+ /**
+ * @see MCoeControlHitTest documentation
+ */
+ TBool HitRegionContains( const TPoint& aPoint, const CCoeControl& aControl) const;
+
+ /**
+ * @see CXnControlAdapter documentation
+ */
+ void HandleScreenDeviceChangedL();
+
+ public: // New functions
+ /**
+ * Returns Called when view position changes.
+ *
+ * @param aNewPosition New view position.
+ */
+ const TPoint DeltaPosition() const;
+
+ /**
+ * Reset state.
+ *
+ */
+ void ResetState();
+
+ /**
+ * Scroll box so that the given node is shown.
+ *
+ */
+ void ShowItem( CXnNode& aNode );
+
+ /**
+ * Layout has changed somewhere. Act if needed.
+ *
+ */
+ void LayoutChangedL();
+
+ public: // Functions from base classes
+ /**
+ * From MAknPhysicsObserver.
+ *
+ * Physics emulation has moved the view.
+ *
+ * When this method is called client should update its visual and logical
+ * states to reflect the changes caused by view move. Note that if the
+ * parameter @c aDrawNow is @c EFalse client is not allowed to redraw the
+ * display but should only update its logical state.
+ * Physics engine will ensure that the last frame is always drawn.
+ *
+ * @since S60 v5.0
+ *
+ * @param aNewPosition The new position of the view.
+ * @param aDrawNow @c ETrue if client should redraw the screen,
+ * otherwise @c EFalse.
+ * @param aFlags Additional flags, not used currently.
+ */
+ void ViewPositionChanged( const TPoint& aNewPosition,
+ TBool aDrawNow, TUint aFlags );
+
+ /**
+ * From MAknPhysicsObserver.
+ * Called when emulation ended.
+ */
+ void PhysicEmulationEnded();
+
+ /**
+ * From MAknPhysicsObserver.
+ * Returns the observer view position.
+ *
+ * @return Physics observer view position.
+ */
+ TPoint ViewPosition() const;
+
+ /**
+ * see MCoeControlContext
+ */
+ void ResetContext( CWindowGc& aGc ) const;
+
+ private: // Constructors
+ /**
+ * C++ default constructor.
+ */
+ CXnScrollableControlAdapter( CXnNodePluginIf& aNode );
+
+ /**
+ * Two-phased constructor.
+ */
+ void ConstructL();
+
+ private: // New functions
+ void ReadPropertiesL();
+ void InitPhysicEngineL();
+
+ private: // Data
+ /**
+ * UiEngine.
+ * Not owned.
+ */
+ CXnUiEngine* iUiEngine;
+
+ /**
+ * Layout node.
+ */
+ CXnNodePluginIf& iNode;
+
+ /**
+ * Physics.
+ * Own.
+ */
+ CAknPhysics* iPhysics;
+
+ /**
+ * Pointer down start time.
+ */
+ TTime iStartTime;
+
+ /**
+ * Start (pointer down) position.
+ */
+ TPoint iStartPosition;
+
+ /**
+ * Position at previous pointer event.
+ */
+ TPoint iPreviousPosition;
+
+ /**
+ * Current view position.
+ */
+ TPoint iCurrentPosition;
+
+ /**
+ * View position at the beginning.
+ */
+ TPoint iStartViewPosition;
+
+ /**
+ * Current pointer position.
+ */
+ TPoint iStylusPosition;
+
+ /**
+ * Visible area, i.e. area of the scollable control that is to be drawn.
+ */
+ TRect iViewPort;
+
+ /**
+ * True, if layout has been changed and engine needs to be reset.
+ */
+ TBool iLayoutChanged;
+ };
+
+#endif // __XNSCROLLABLECONTROLADAPTER_H__
+
+// End of File