--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/uiacceltk/hitchcock/coretoolkit/inc/HuiMatrixStack.h	Tue Feb 02 07:56:43 2010 +0200
@@ -0,0 +1,117 @@
+/*
+* 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:   Definition of CHuiMatrixStack. CHuiMatrixStack is a stack of 
+*                2D transformation matrices.
+*
+*/
+
+
+
+#ifndef __HUIMATRIXSTACK_H__
+#define __HUIMATRIXSTACK_H__
+
+
+#include <e32base.h>
+#include "uiacceltk/HuiRealPoint.h"
+
+
+/**
+ * Stack of 2D transformation matrices.
+ */
+NONSHARABLE_CLASS(CHuiMatrixStack) : public CBase
+    {
+public:
+
+    /** 2D transformation matrix. */
+    struct TMatrix
+        {   
+    public:        
+        TReal32 iMatrix[9];       
+
+        /** Matrix is an identity matrix. Multiplication can be skipped. */
+        TBool iIsIdentity;
+
+    public:
+        /** Constructor that initializes the matrix as an identity matrix. */
+        IMPORT_C TMatrix();
+
+        /**
+         * Multiplies this matrix with another one. Result is stored in this
+         * matrix.
+         *
+         * @param aOther  Matrix to multiply with.
+         */
+        void Multiply(const TMatrix& aOther);
+
+        /**
+         * Multiplies a point with the matrix.
+         *
+         * @param aPoint  2D point. Modified.
+         */
+        IMPORT_C void Multiply(THuiRealPoint& aPoint) const;
+        };
+    
+    
+public:
+
+    /* Constructors and destructor. */
+    
+    IMPORT_C static CHuiMatrixStack* NewL();
+    
+    static CHuiMatrixStack* NewLC();
+    
+    
+    /**
+     * Destructor.
+     */
+    virtual ~CHuiMatrixStack();
+    
+    
+    /* Methods. */
+    
+    IMPORT_C TInt Count() const;
+
+    IMPORT_C TMatrix& Current();
+
+    /**
+     * @return  Error code.
+     */
+    IMPORT_C TInt Push();
+
+    IMPORT_C void Pop();
+    
+    IMPORT_C void LoadIdentity();
+    
+    IMPORT_C void Multiply(const TMatrix& aMatrix);    
+    
+    
+protected:
+
+    /* Constructors. */
+    
+    CHuiMatrixStack();
+    
+    void ConstructL();    
+        
+    
+private:
+
+    // Typedef for convenience.
+    typedef RArray<TMatrix> RMatrixStack;
+            
+    RMatrixStack iStack;            
+    };
+
+
+#endif // __HUIMATRIXSTACK_H__