--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/uiaccelerator_plat/alf_visual_api/inc/alf/alfcurvepathlayout.h	Tue Feb 02 07:56:43 2010 +0200
@@ -0,0 +1,154 @@
+/*
+* Copyright (c) 2006-2007 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:   Curve path layout definition.
+*
+*/
+
+
+
+#ifndef C_ALFCURVEPATHLAYOUT_H
+#define C_ALFCURVEPATHLAYOUT_H
+
+#include <alf/alflayout.h>
+#include <alf/alfmappingfunctions.h>
+
+class CAlfCurvePath;
+
+/**
+ *  Curve path layout can be used to control size and position properties of
+ *  a visual using a curve path object.
+ *  @see CAlfCurvePath
+ *
+ *  When using a curve path layout the user has to specify which properties of
+ *  a visual should be controlled by the layout. By default the curve path layout
+ *  does not affect any properties of its child visuals. Mapping function identifier
+ *  retrieved through CAlfCurvePathLayout::MappingFunctionIdentifier() - method
+ *  can be used to bind the curve path layout to properties of a visual.
+ *
+ *  The curve path layout contains a curve path instance that can be used to
+ *  customize the path that is used to layout the properties of a visual. Reference
+ *  to the curve path can be acquired through the CAlfCurvePathLayout::CurvePath() - method.
+ *
+ *  The following code example creates a curve path layout, sets its base unit to normalized (0.0 - 1.0)
+ *  units, defines a curve path, binds the curve path layouting to image visual's position
+ *  property and animates the position of the image visual on the curve path from start point of the curve path (0.0)
+ *  to end point of the curve path (2.0) within 3 seconds. Notice that the curve path layout does not
+ *  adjust the size of the image visual and because of that the image visual size is explicitly set to (0.25, 0.25).
+ *  The size of the image visual is defined in base units of it's parent layout.
+ *
+ *	@code
+ *  // Create a curve path layout
+ *  CAlfCurvePathLayout* layout = CAlfCurvePathLayout::AddNewL(*this);
+ *  layout->SetBaseUnit(TAlfMetric(1.0, EAlfUnitNormalized));
+ *  
+ *  // Define a curve path
+ *  CAlfCurvePath& curvePath = layout->CurvePath();
+ *  curvePath.AppendArcL(TAlfRealPoint(0.5, 0.5), TAlfRealSize(0.5, 0.5), 180.0, 360.0, 2.0);
+ *  
+ *  // Create an image visual
+ *  CAlfImageVisual* imageVisual = CAlfImageVisual::AddNewL(*this, layout);
+ *  imageVisual->SetSize(TAlfRealSize(0.25, 0.25));
+ *  CAlfTextureManager& defaultTexture = aEnv.TextureManager( ); 
+ *  CAlfTexture& texture = defaultTexture.LoadTextureL(_L("album4.jpg"),EAlfTextureFlagDefault,KAlfAutoGeneratedTextureId);
+ *  imageVisual->SetImage(TAlfImage(texture));
+ *  
+ *  // Control the position of the image visual with the curve path
+ *  TAlfTimedPoint pos;
+ *  pos.SetMappingFunctionIdentifier(layout->MappingFunctionIdentifier());
+ *  pos.SetTarget(2.0, 3000);
+ *  imageVisual->SetPos(pos);
+ *  @endcode
+ *
+ *  @lib alfclient.lib
+ *  @since S60 v3.2
+ */
+class CAlfCurvePathLayout : public CAlfLayout, public MAlfMappingFunction
+    {
+
+public:
+
+    IMPORT_C static CAlfCurvePathLayout* AddNewL(
+        CAlfControl& aOwnerControl, 
+        CAlfLayout* aParentLayout = 0);
+
+    /**
+     * Constructor.
+     *
+     * @param aOwner  Owner control.
+     */
+    IMPORT_C CAlfCurvePathLayout();
+
+    /**
+     * From CAlfLayout. Second-phase constructor.
+     */
+    IMPORT_C void ConstructL(CAlfControl& aOwner);
+
+    /**
+     * Virtual destructor.
+     */
+    IMPORT_C ~CAlfCurvePathLayout();
+  
+    /**
+     * Returns the curve path instance of the layout. The returned instance
+     * can be used to modify the curve path that is used to control the properties
+     * of a layed out visual. The curve path instance is defined in the base units
+     * used by this layout.
+     * @see CAlfCurvePathLayout::BaseUnit()
+     * @see CAlfCurvePathLayout::SetBaseUnit()
+     *
+     * @return Curve path. This instance cannot be passed
+     *         as general mapping function to other instances.
+     */
+    IMPORT_C CAlfCurvePath& CurvePath();
+   
+    /**
+     * From CAlfVisual
+     * @see CAlfVisual
+     */
+    IMPORT_C void RemoveAndDestroyAllD();
+    IMPORT_C void UpdateChildrenLayout(TInt aTransitionTime = 0);
+    IMPORT_C CAlfVisual* FindTag(const TDesC8& aTag);
+
+    /** 
+     * From CAlfLayout
+     * @see CAlfLayout
+     */
+    IMPORT_C TAlfXYMetric BaseUnit() const; 
+    
+    /**
+     * From MAlfMappingFunction
+     * @see MAlfMappingFunction
+     */
+    IMPORT_C TInt MappingFunctionIdentifier() const;
+    IMPORT_C TReal32 MapValue(TReal32 aValue, TInt aMode) const __SOFTFP;
+
+
+protected:
+    /**
+     * From CAlfVisual
+     * @see CAlfVisual
+     */
+    IMPORT_C void DoRemoveAndDestroyAllD();
+    IMPORT_C void PropertyOwnerExtension(const TUid& aExtensionUid, TAny** aExtensionParams);
+
+
+private: // data
+
+    struct TCurvePathLayoutPrivateData;
+    TCurvePathLayoutPrivateData* iCurvePathLayoutData;
+
+    };
+
+
+#endif // C_ALFCURVEPATHLAYOUT_H