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1108ef21db
final height to avoid overflowing the heap. The expression layouts are kept in the cell which are fewer then the number of calculations
59 lines
2.1 KiB
C++
59 lines
2.1 KiB
C++
#ifndef CALCULATION_CALCULATION_H
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#define CALCULATION_CALCULATION_H
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#include <escher.h>
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#include <poincare.h>
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namespace Calculation {
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class CalculationStore;
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class Calculation {
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public:
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enum class EqualSign : uint8_t {
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Unknown,
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Approximation,
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Equal
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};
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Calculation();
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~Calculation(); // Delete expression and layout, if needed
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Calculation& operator=(const Calculation& other);
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Calculation(const Calculation& other) = delete;
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Calculation(Calculation&& other) = delete;
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Calculation& operator=(Calculation&& other) = delete;
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/* c.reset() is the equivalent of c = Calculation() without copy assingment. */
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void reset();
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void setContent(const char * c, Poincare::Context * context, Poincare::Expression * ansExpression);
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KDCoordinate height(Poincare::Context * context);
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const char * inputText();
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const char * exactOutputText();
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const char * approximateOutputText();
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Poincare::Expression * input();
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Poincare::ExpressionLayout * createInputLayout();
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Poincare::Expression * approximateOutput(Poincare::Context * context);
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Poincare::Expression * exactOutput(Poincare::Context * context);
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Poincare::ExpressionLayout * createExactOutputLayout(Poincare::Context * context);
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Poincare::ExpressionLayout * createApproximateOutputLayout(Poincare::Context * context);
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bool isEmpty();
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void tidy();
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bool shouldOnlyDisplayApproximateOutput(Poincare::Context * context);
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EqualSign exactAndApproximateDisplayedOutputsAreEqual(Poincare::Context * context);
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constexpr static int k_printedExpressionSize = 2*::TextField::maxBufferSize();
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private:
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/* Buffers holding text expressions have to be longer than the text written
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* by user (of maximum length TextField::maxBufferSize()) because when we
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* print an expression we add omitted signs (multiplications, parenthesis...) */
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char m_inputText[k_printedExpressionSize];
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char m_exactOutputText[k_printedExpressionSize];
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char m_approximateOutputText[k_printedExpressionSize];
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Poincare::Expression * m_input;
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Poincare::Expression * m_exactOutput;
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Poincare::Expression * m_approximateOutput;
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KDCoordinate m_height;
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EqualSign m_equalSign;
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};
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}
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#endif
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