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53 lines
1.8 KiB
C++
53 lines
1.8 KiB
C++
#ifndef SHARED_FUNCTION_H
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#define SHARED_FUNCTION_H
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#include <poincare.h>
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#include <kandinsky.h>
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#include <escher.h>
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namespace Shared {
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class Function {
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public:
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Function(const char * name = nullptr, KDColor color = KDColorBlack);
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virtual ~Function(); // Delete expression and layout, if needed
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Function& operator=(const Function& other);
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Function& operator=(Function&& other) = delete;
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Function(const Function& other) = delete;
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Function(Function&& other) = delete;
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virtual uint32_t checksum();
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const char * text() const;
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const char * name() const;
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KDColor color() const { return m_color; }
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Poincare::Expression * expression(Poincare::Context * context) const;
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Poincare::ExpressionLayout * layout();
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virtual bool isDefined();
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bool isActive();
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void setActive(bool active);
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virtual bool isEmpty();
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virtual void setContent(const char * c);
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void setColor(KDColor m_color);
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virtual float evaluateAtAbscissa(float x, Poincare::Context * context) const {
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return templatedApproximateAtAbscissa(x, context);
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}
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virtual double evaluateAtAbscissa(double x, Poincare::Context * context) const {
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return templatedApproximateAtAbscissa(x, context);
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}
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virtual void tidy();
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private:
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constexpr static size_t k_dataLengthInBytes = (TextField::maxBufferSize()+2)*sizeof(char)+2;
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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
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template<typename T> T templatedApproximateAtAbscissa(T x, Poincare::Context * context) const;
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virtual char symbol() const = 0;
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mutable Poincare::Expression * m_expression;
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char m_text[TextField::maxBufferSize()];
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const char * m_name;
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KDColor m_color;
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Poincare::ExpressionLayout * m_layout;
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bool m_active;
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};
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}
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#endif
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