--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/photosgallery/viewframework/layouts/inc/glxlayoutsplitter.h	Thu Dec 17 08:45:44 2009 +0200
@@ -0,0 +1,142 @@
+/*
+* 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:    Splits layout chain by visual
+*
+*/
+
+
+
+
+#ifndef T_GLXLAYOUTSPLITTER_H
+#define T_GLXLAYOUTSPLITTER_H
+
+#include <glxlayout.h>
+#include <mglxvisuallistobserver.h>
+
+class CAlfVisual;
+
+/**
+ *  TGlxLayoutSplitter
+ *  
+ *  Splits the layout chain based on a visual. Client can define
+ *  any number of visual-layout pairs, and a default layout
+ *  for the rest.
+ *
+ *  @lib glxlayouts.lib
+ */
+class TGlxLayoutSplitter : public TGlxLayout, public MGlxVisualListObserver
+	{
+	public:
+
+		/**
+		 * Constructor. Resets the values
+		 */
+		IMPORT_C TGlxLayoutSplitter();
+
+		/**
+		 * Destructor
+		 */
+		IMPORT_C ~TGlxLayoutSplitter();
+
+		/**
+		 * Sets the visual list for the splitter.
+		 * Must be called before using the splitter
+		 * @param aVisualList the visual list that this layout should deal with
+		 */
+		IMPORT_C void SetVisualListL( MGlxVisualList* aVisualList );
+		
+		/**
+		 * Sets a layout that is bound to a visual
+		 * @param aVisual the visual that this layout should deal with
+		 */
+		 
+		 //Changed the API from AddLayout to SetLayout
+		IMPORT_C void SetLayoutL(
+			MGlxLayout* aLayout, const CAlfVisual* aVisual );
+
+		/**
+		 * Removes a layout that is bound to a visual
+		 * @param aVisual the visual that this layout should deal with
+		 */
+		IMPORT_C void RemoveLayout( const CAlfVisual* aVisual );
+
+		/**
+		 * Sets the default layout. This layout is used when the 
+		 * visual being evaluated is not linked to another layout 
+		 * (by calling AddLayoutL). If default layout has not been 
+		 * defined, the layout will fall through, i.e., values and 
+		 * index will not be modified (for non-lined visuals).
+		 * @param aLayout layout pointer or null if client want's to
+		 *        undefine default layout.
+		 */
+		IMPORT_C void SetDefaultLayout( MGlxLayout* aLayout );
+
+		/**
+		 * Remove all layouts and remove association with visual list. 
+		 */
+		IMPORT_C void Reset();
+
+	protected:	// From TGlxLayout
+
+		/// @ref TGlxLayout::DoSetLayoutValues
+		void DoSetLayoutValues( TGlxLayoutInfo& aInfo );
+
+	public:	// From MGlxVisualListObserver
+
+		/// @ref MGlxVisualListObserver::DoSetLayoutValues
+		void HandleFocusChangedL(
+			TInt aFocusIndex, TReal32 aItemsPerSecond, MGlxVisualList* aList, 
+			NGlxListDefs::TFocusChangeType aType );
+		/// @ref MGlxVisualListObserver::HandleSizeChanged
+		void HandleSizeChanged( const TSize& aSize, MGlxVisualList* aList );
+		/// @ref MGlxVisualListObserver::HandleVisualRemoved
+		void HandleVisualRemoved(
+			const CAlfVisual* aVisual, MGlxVisualList* aList );
+		/// @ref MGlxVisualListObserver::HandleVisualAddedL
+		void HandleVisualAddedL(
+			CAlfVisual* aVisual, TInt aIndex, MGlxVisualList* aList );
+
+	private:
+
+		// Helper fo get the layout that corresponds to given visual
+		MGlxLayout* Layout( const CAlfVisual* aVisual ) const;
+		// Helper fo get the layoutindex that corresponds to given visual
+		TInt LayoutIndex( const CAlfVisual* aVisual ) const;
+
+	private:
+	
+		/**
+		 * Helper struct to store the layout and visual
+		 */
+		struct TLayout
+			{
+			/// Ref: the layout
+			MGlxLayout* iLayout;
+			/// Ref: the visual
+			const CAlfVisual* iVisual;
+			/**
+			 * Helper to tell whether two TLayout structs match
+			 */
+			static TBool Match( const TLayout& aLhs, const TLayout& aRhs );
+			};
+		/// Own: the layout-visual structs
+		RArray< TLayout > iLayouts;
+		/// Ref: the default layout
+		MGlxLayout* iDefaultLayout;
+		/// Ref: the visual list
+		MGlxVisualList* iVisualList;
+		
+	};
+
+#endif // T_GLXLAYOUTSPLITTER_H