calculation.h
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#ifndef CALCULATION_CALCULATION_H
#define CALCULATION_CALCULATION_H
#include <escher.h>
#include <poincare.h>
namespace Calculation {
class CalculationStore;
class Calculation {
public:
Calculation();
~Calculation(); // Delete expression and layout, if needed
Calculation& operator=(const Calculation& other);
Calculation(const Calculation& other) = delete;
Calculation(Calculation&& other) = delete;
Calculation& operator=(Calculation&& other) = delete;
/* c.reset() is the equivalent of c = Calculation() without copy assingment. */
void reset();
void setContent(const char * c, Poincare::Context * context, Poincare::Expression * ansExpression);
const char * inputText();
const char * exactOutputText();
const char * approximateOutputText();
Poincare::Expression * input();
Poincare::ExpressionLayout * inputLayout();
Poincare::Expression * approximateOutput(Poincare::Context * context);
Poincare::Expression * exactOutput(Poincare::Context * context);
Poincare::ExpressionLayout * exactOutputLayout(Poincare::Context * context);
Poincare::ExpressionLayout * approximateOutputLayout(Poincare::Context * context);
bool isEmpty();
void tidy();
bool shouldDisplayApproximateOutput(Poincare::Context * context);
bool exactAndApproximateDisplayedOutputsAreEqual(Poincare::Context * context);
constexpr static int k_printedExpressionSize = 2*::TextField::maxBufferSize();
private:
/* Buffers holding text expressions have to be longer than the text written
* by user (of maximum length TextField::maxBufferSize()) because when we
* print an expression we add omitted signs (multiplications, parenthesis...) */
char m_inputText[k_printedExpressionSize];
char m_exactOutputText[k_printedExpressionSize];
char m_approximateOutputText[k_printedExpressionSize];
Poincare::Expression * m_input;
Poincare::ExpressionLayout * m_inputLayout;
Poincare::Expression * m_exactOutput;
Poincare::ExpressionLayout * m_exactOutputLayout;
Poincare::Expression * m_approximateOutput;
Poincare::ExpressionLayout * m_approximateOutputLayout;
};
}
#endif