71 lines
2.3 KiB
C++
71 lines
2.3 KiB
C++
/*
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* This file is part of the Flowee project
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* Copyright (C) 2018 Tom Zander <tom@flowee.org>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef CALCULATOR_H
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#define CALCULATOR_H
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#include <QObject>
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class Calculator : public QObject
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{
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Q_OBJECT
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Q_PROPERTY(QString currentValue READ currentValue NOTIFY currentValueChanged)
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Q_PROPERTY(QString totalValue READ totalValue NOTIFY totalValueChanged)
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Q_PROPERTY(QStringList historic READ historicValues NOTIFY historicValuesChanged)
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Q_PROPERTY(bool hasTotalValue READ hasTotalValue NOTIFY totalValueChanged)
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Q_PROPERTY(int priceInCents READ priceInCents)
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public:
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explicit Calculator(QObject *parent = nullptr);
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Q_INVOKABLE void addCharacter(const QString &character);
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Q_INVOKABLE void addToTotal();
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Q_INVOKABLE void startMultiplication();
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Q_INVOKABLE void subtotalButtonPresssed();
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Q_INVOKABLE void backspace();
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Q_INVOKABLE void clearAll();
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QString currentValue() const;
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QString totalValue() const;
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bool hasTotalValue() const;
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QStringList historicValues() const;
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int priceInCents() const;
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signals:
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void currentValueChanged();
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void historicValuesChanged();
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void totalValueChanged();
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private:
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int currentValueInt() const;
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void addCurrentToHistory();
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void calc();
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QString m_amountOfCent;
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int m_amountOfUnit = 0;
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bool m_afterDecimal = false; // user typed the dot or comma, we are not editing the cents part
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bool m_finalState = false; // user just pressed '='
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bool m_inMultiplication = false;
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int m_multiplier = 0;
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int m_totalValue = 0; // in cents
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QStringList m_history;
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QString m_currencySeparator; // TODO make configurable
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};
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#endif
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