#ifndef CALCULATOR_H
#define CALCULATOR_H
#include <QMainWindow>
QT_BEGIN_NAMESPACE
namespace Ui {
class Calculator;
}
QT_END_NAMESPACE
class Calculator : public QMainWindow
{
Q_OBJECT
public:
Calculator(QWidget *parent = nullptr);
~Calculator();
private slots:
void press0();
void press1();
void press2();
void press3();
void press4();
void press5();
void press6();
void press7();
void press8();
void press9();
void pressAdd();
void pressSubtract();
void pressMultiply();
void pressDivide();
void pressEquals();
void pressDot();
void pressCe();
void pressAc();
bool isDigit(QString);
bool isOperator(QString);
void calculate(bool);
void clearIfDone();
private:
Ui::Calculator *ui;
void keyPressed(QString);
float m_operand1;
bool m_operand1Set = false;
float m_operand2;
QChar m_operator = (QChar)0;
bool m_done = false;
};
#endif // CALCULATOR_H
