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21 
22 
23 
24 #ifndef INCLUDED_SLIDESHOW_EXPRESSIONNODEFACTORY_HXX
25 #define INCLUDED_SLIDESHOW_EXPRESSIONNODEFACTORY_HXX
26 
27 #include "expressionnode.hxx"
28 
29 #include <basegfx/vector/b2dsize.hxx>
30 #include <basegfx/range/b2drectangle.hxx>
31 
32 
33 /* Definition of ExpressionNodeFactory class */
34 
35 namespace slideshow
36 {
37     namespace internal
38     {
39         /** ExpressionNode factory
40 
41         	This class can be used to generate a wide variety of
42         	ExpressionNode objects, e.g. when parsing SMIL function
43         	expressions.
44         */
45         class ExpressionNodeFactory
46         {
47         public:
48             static ExpressionNodeSharedPtr createConstantValueExpression( double rConstantValue );
49 
50             static ExpressionNodeSharedPtr createValueTExpression	 ();
51 
52             static ExpressionNodeSharedPtr createPlusExpression		 ( const ExpressionNodeSharedPtr&	rLHS,
53                                                                        const ExpressionNodeSharedPtr&	rRHS );
54             static ExpressionNodeSharedPtr createMinusExpression	 ( const ExpressionNodeSharedPtr&	rLHS,
55                                                                        const ExpressionNodeSharedPtr&	rRHS );
56             static ExpressionNodeSharedPtr createMultipliesExpression( const ExpressionNodeSharedPtr&	rLHS,
57                                                                        const ExpressionNodeSharedPtr&	rRHS );
58             static ExpressionNodeSharedPtr createDividesExpression	 ( const ExpressionNodeSharedPtr&	rLHS,
59                                                                        const ExpressionNodeSharedPtr&	rRHS );
60 
61             /** Composes two ExpressionNode function.
62 
63             	The resulting expression will calculate
64             	rOuterFunction( rInnerFunction(t) ).
65              */
66             static ExpressionNodeSharedPtr createComposedExpression	 ( const ExpressionNodeSharedPtr&	rOuterFunction,
67                                                                        const ExpressionNodeSharedPtr&	rInnerFunction );
68 
69             static ExpressionNodeSharedPtr createMinExpression	 	( const ExpressionNodeSharedPtr&	rOuterFunction,
70                                                                       const ExpressionNodeSharedPtr&	rInnerFunction );
71 
72             static ExpressionNodeSharedPtr createMaxExpression	 	( const ExpressionNodeSharedPtr&	rOuterFunction,
73                                                                       const ExpressionNodeSharedPtr&	rInnerFunction );
74         };
75     }
76 }
77 
78 #endif /* INCLUDED_SLIDESHOW_EXPRESSIONNODEFACTORY_HXX */
79