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emulateur/epsilon-nofrendo/apps/shared/function.h 1.25 KB
6663b6c9   adorian   projet complet av...
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  #ifndef SHARED_FUNCTION_H
  #define SHARED_FUNCTION_H
  
  #include "expression_model.h"
  
  namespace Shared {
  
  class Function : public ExpressionModel {
  public:
    Function(const char * name = nullptr, KDColor color = KDColorBlack);
    virtual uint32_t checksum();
    const char * name() const;
    KDColor color() const { return m_color; }
    bool isActive();
    void setActive(bool active);
    void setColor(KDColor m_color);
    virtual float evaluateAtAbscissa(float x, Poincare::Context * context) const {
      return templatedApproximateAtAbscissa(x, context);
    }
    virtual double evaluateAtAbscissa(double x, Poincare::Context * context) const {
      return templatedApproximateAtAbscissa(x, context);
    }
    virtual double sumBetweenBounds(double start, double end, Poincare::Context * context) const = 0;
  private:
    constexpr static size_t k_dataLengthInBytes = (TextField::maxBufferSize()+2)*sizeof(char)+2;
    static_assert((k_dataLengthInBytes & 0x3) == 0, "The function data size is not a multiple of 4 bytes (cannot compute crc)"); // Assert that dataLengthInBytes is a multiple of 4
    template<typename T> T templatedApproximateAtAbscissa(T x, Poincare::Context * context) const;
    virtual char symbol() const = 0;
    const char * m_name;
    KDColor m_color;
    bool m_active;
  };
  
  }
  
  #endif