--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/widgetmodel/alfwidgetmodel/inc/alfgridlayoutmanagerimpl.h	Thu Dec 17 08:56:02 2009 +0200
@@ -0,0 +1,127 @@
+/*
+* Copyright (c) 2007 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:  grid layoutmanager private implementation header.
+*
+*/
+
+
+#ifndef ALFGRIDLAYOUTMANAGERIMPL_H
+#define ALFGRIDLAYOUTMANAGERIMPL_H
+
+#include <osn/osndefines.h>
+#include <alf/alfgridlayoutmanager.h>
+#include <alf/ialflayoutpreferences.h>
+
+using std::auto_ptr;
+using Alf::AlfGridLayoutManager;
+
+class CAlfControl;
+class CAlfGridLayout;
+
+namespace Alf
+    {
+    
+class CAlfWidgetControl;
+class AlfWidget;
+class IAlfLayoutPreferences;
+    
+/**
+ * layoutmanager implementation class
+ *
+ * @lib alfwidgetmodel.lib
+ * @since S60 ?S60_version
+ */
+class AlfGridLayoutManagerImpl : public IAlfLayoutPreferences
+    {
+public:
+    /**
+     * layout manager constructor
+     *
+     * @param aLayoutType type of layout used by the manager.
+     */
+    AlfGridLayoutManagerImpl(AlfGridLayoutManager& aGridLayoutManager);
+    
+    /**
+     * destructor
+     */
+    ~AlfGridLayoutManagerImpl();
+    
+public:
+// from base class IAlfLayoutPreferences
+
+	/**
+	 * Returns the minimum size of the layout by combining the minimum sizes of the
+	 * layed out visuals.
+	 * 
+	 * @param aMinSize The minimum size that the object would like to be laid out to
+	 * @return false iff none of the layed out UI elements do not care about minimum size
+	 */
+	virtual bool getMinimumSize( TAlfXYMetric& aMinSize ) const;
+	
+	/**
+	 * Returns the maximum size of the layout by combining the maximum sizes of the
+	 * layed out visuals.
+	 *  
+	 * @param aMaxSize The maximum size that the object would like to be laid out to
+	 * @return false iff none of the layed out UI elements do not care about maximum size
+	 */
+	virtual bool getMaximumSize( TAlfXYMetric& aMaxSize ) const;
+	
+    /**
+     * Returns the size combined by all preferred sizes of child UI elements in this layout 
+     * when they are being layed out according to the layout manager rules.
+     * 
+     * @param aPreferredSize Filled with the referred area occupied by child elements when
+     * 						 layed out by layouting rules in this layout manager.
+     * @return False if none of the child components report their preferred size. True
+     * 		   otherwise.
+     */
+    virtual bool getPreferredSize(TAlfXYMetric& aPreferredSize) const;
+	 
+	/**
+	 * Set the preferred size into a presentation object.
+	 * 
+	 * This is not supported on the layout manager. Users should set preferred sizes of the
+	 * contained UI elements.
+	 */
+	virtual void setPreferredSize( const TAlfXYMetric& aPreferredSize );    
+
+public:
+// from base class IAlfInterfaceBase
+    
+    /**
+     * Interface getter. 
+     * @see IAlfInterfaceBase::MakeInterface
+     *
+     * @since S60 ?S60_version
+     * @param aType The type id of the queried interface.
+     * @return The queried interface, or NULL if the interface is not
+     *         supported or available.
+     */    
+    virtual IAlfInterfaceBase* makeInterface( const IfId& aType );	
+	
+private:
+    /**
+     * returns the gridlayout used by the layoutmanager.
+     */    
+    CAlfGridLayout& layout() const;
+private:
+
+    AlfGridLayoutManager &mGridLayoutManager;
+
+    };
+
+    } // namespace Alf
+
+#endif // ALFGRIDLAYOUTMANAGERIMPL_H