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#ifndef INCLUDED_SLIDESHOW_EXPRESSIONNODEFACTORY_HXX
#define INCLUDED_SLIDESHOW_EXPRESSIONNODEFACTORY_HXX

#include "expressionnode.hxx"

#include <basegfx/vector/b2dsize.hxx>
#include <basegfx/range/b2drectangle.hxx>


/* Definition of ExpressionNodeFactory class */

namespace slideshow
{
    namespace internal
    {
        /** ExpressionNode factory

        	This class can be used to generate a wide variety of
        	ExpressionNode objects, e.g. when parsing SMIL function
        	expressions.
        */
        class ExpressionNodeFactory
        {
        public:
            static ExpressionNodeSharedPtr createConstantValueExpression( double rConstantValue );

            static ExpressionNodeSharedPtr createValueTExpression	 ();

            static ExpressionNodeSharedPtr createPlusExpression		 ( const ExpressionNodeSharedPtr&	rLHS,
                                                                       const ExpressionNodeSharedPtr&	rRHS );
            static ExpressionNodeSharedPtr createMinusExpression	 ( const ExpressionNodeSharedPtr&	rLHS,
                                                                       const ExpressionNodeSharedPtr&	rRHS );
            static ExpressionNodeSharedPtr createMultipliesExpression( const ExpressionNodeSharedPtr&	rLHS,
                                                                       const ExpressionNodeSharedPtr&	rRHS );
            static ExpressionNodeSharedPtr createDividesExpression	 ( const ExpressionNodeSharedPtr&	rLHS,
                                                                       const ExpressionNodeSharedPtr&	rRHS );

            /** Composes two ExpressionNode function.

            	The resulting expression will calculate
            	rOuterFunction( rInnerFunction(t) ).
             */
            static ExpressionNodeSharedPtr createComposedExpression	 ( const ExpressionNodeSharedPtr&	rOuterFunction,
                                                                       const ExpressionNodeSharedPtr&	rInnerFunction );

            static ExpressionNodeSharedPtr createMinExpression	 	( const ExpressionNodeSharedPtr&	rOuterFunction,
                                                                      const ExpressionNodeSharedPtr&	rInnerFunction );

            static ExpressionNodeSharedPtr createMaxExpression	 	( const ExpressionNodeSharedPtr&	rOuterFunction,
                                                                      const ExpressionNodeSharedPtr&	rInnerFunction );
        };
    }
}

#endif /* INCLUDED_SLIDESHOW_EXPRESSIONNODEFACTORY_HXX */