slideshow/source/inc/expressionnodefactory.hxx

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  19
  20 #ifndef INCLUDED_SLIDESHOW_SOURCE_INC_EXPRESSIONNODEFACTORY_HXX
  21 #define INCLUDED_SLIDESHOW_SOURCE_INC_EXPRESSIONNODEFACTORY_HXX
  22
  23 #include "expressionnode.hxx"
  24
  25 #include <memory>
  26
  27
  28 /* Definition of ExpressionNodeFactory class */
  29
  30 namespace slideshow::internal
  31     {
  32         /** ExpressionNode factory
  33
  34             This class can be used to generate a wide variety of
  35             ExpressionNode objects, e.g. when parsing SMIL function
  36             expressions.
  37         */
  38         class ExpressionNodeFactory
  39         {
  40         public:
  41             static std::shared_ptr<ExpressionNode> createConstantValueExpression( double rConstantValue );
  42
  43             static std::shared_ptr<ExpressionNode> createValueTExpression    ();
  44
  45             static std::shared_ptr<ExpressionNode> createPlusExpression      ( const std::shared_ptr<ExpressionNode>&   rLHS,
  46                                                                        const std::shared_ptr<ExpressionNode>&   rRHS );
  47             static std::shared_ptr<ExpressionNode> createMinusExpression     ( const std::shared_ptr<ExpressionNode>&   rLHS,
  48                                                                        const std::shared_ptr<ExpressionNode>&   rRHS );
  49             static std::shared_ptr<ExpressionNode> createMultipliesExpression( const std::shared_ptr<ExpressionNode>&   rLHS,
  50                                                                        const std::shared_ptr<ExpressionNode>&   rRHS );
  51             static std::shared_ptr<ExpressionNode> createDividesExpression   ( const std::shared_ptr<ExpressionNode>&   rLHS,
  52                                                                        const std::shared_ptr<ExpressionNode>&   rRHS );
  53
  54             /** Composes two ExpressionNode function.
  55
  56                 The resulting expression will calculate
  57                 rOuterFunction( rInnerFunction(t) ).
  58              */
  59             static std::shared_ptr<ExpressionNode> createMinExpression      ( const std::shared_ptr<ExpressionNode>&    rOuterFunction,
  60                                                                       const std::shared_ptr<ExpressionNode>&    rInnerFunction );
  61
  62             static std::shared_ptr<ExpressionNode> createMaxExpression      ( const std::shared_ptr<ExpressionNode>&    rOuterFunction,
  63                                                                       const std::shared_ptr<ExpressionNode>&    rInnerFunction );
  64         };
  65
  66 }
  67
  68 #endif // INCLUDED_SLIDESHOW_SOURCE_INC_EXPRESSIONNODEFACTORY_HXX
  69
  70 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */