45 lines
888 B
C++
45 lines
888 B
C++
#ifndef CALCULATOR_H
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#define CALCULATOR_H
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#include <QWidget>
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#include <QLineEdit>
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#include <QPushButton>
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#include <QList>
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class Calculator final : public QWidget{
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Q_OBJECT
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public:
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explicit Calculator(QWidget *parent = nullptr);
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~Calculator() override = default;
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Calculator(const Calculator &) = delete;
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Calculator &operator=(const Calculator &) = delete;
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Calculator(Calculator &&) = delete;
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Calculator &operator=(Calculator &&) = delete;
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private slots:
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void digitClicked();
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void operatorClicked();
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void calculateResult();
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void clearDisplay();
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private:
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void setupUI();
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void connectSignals();
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QLineEdit *display;
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QPushButton *clearBtn;
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QPushButton *equalBtn;
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QList<QPushButton *> operatorButtons;
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double firstNumber = 0.0;
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QString operation;
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bool waitingForOperand = true;
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};
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#endif //CALCULATOR_H
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