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27 
28 #ifndef INCLUDED_SLIDESHOW_EXPRESSIONNODEFACTORY_HXX
29 #define INCLUDED_SLIDESHOW_EXPRESSIONNODEFACTORY_HXX
30 
31 #include "expressionnode.hxx"
32 
33 #include <basegfx/vector/b2dsize.hxx>
34 #include <basegfx/range/b2drectangle.hxx>
35 
36 
37 /* Definition of ExpressionNodeFactory class */
38 
39 namespace slideshow
40 {
41     namespace internal
42     {
43         /** ExpressionNode factory
44 
45         	This class can be used to generate a wide variety of
46         	ExpressionNode objects, e.g. when parsing SMIL function
47         	expressions.
48         */
49         class ExpressionNodeFactory
50         {
51         public:
52             static ExpressionNodeSharedPtr createConstantValueExpression( double rConstantValue );
53 
54             static ExpressionNodeSharedPtr createValueTExpression	 ();
55 
56             static ExpressionNodeSharedPtr createPlusExpression		 ( const ExpressionNodeSharedPtr&	rLHS,
57                                                                        const ExpressionNodeSharedPtr&	rRHS );
58             static ExpressionNodeSharedPtr createMinusExpression	 ( const ExpressionNodeSharedPtr&	rLHS,
59                                                                        const ExpressionNodeSharedPtr&	rRHS );
60             static ExpressionNodeSharedPtr createMultipliesExpression( const ExpressionNodeSharedPtr&	rLHS,
61                                                                        const ExpressionNodeSharedPtr&	rRHS );
62             static ExpressionNodeSharedPtr createDividesExpression	 ( const ExpressionNodeSharedPtr&	rLHS,
63                                                                        const ExpressionNodeSharedPtr&	rRHS );
64 
65             /** Composes two ExpressionNode function.
66 
67             	The resulting expression will calculate
68             	rOuterFunction( rInnerFunction(t) ).
69              */
70             static ExpressionNodeSharedPtr createComposedExpression	 ( const ExpressionNodeSharedPtr&	rOuterFunction,
71                                                                        const ExpressionNodeSharedPtr&	rInnerFunction );
72 
73             static ExpressionNodeSharedPtr createMinExpression	 	( const ExpressionNodeSharedPtr&	rOuterFunction,
74                                                                       const ExpressionNodeSharedPtr&	rInnerFunction );
75 
76             static ExpressionNodeSharedPtr createMaxExpression	 	( const ExpressionNodeSharedPtr&	rOuterFunction,
77                                                                       const ExpressionNodeSharedPtr&	rInnerFunction );
78         };
79     }
80 }
81 
82 #endif /* INCLUDED_SLIDESHOW_EXPRESSIONNODEFACTORY_HXX */
83