91 lines
3.1 KiB
C++
91 lines
3.1 KiB
C++
/*************************************************************************
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* Copyright (C) 2008 by Volker Lanz <vl@fidra.de> *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License as *
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* published by the Free Software Foundation; either version 3 of *
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* the License, or (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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#if !defined(KPMCORE_CAPACITY_H)
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#define KPMCORE_CAPACITY_H
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#include "util/libpartitionmanagerexport.h"
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class Partition;
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class Device;
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#include <QtGlobal>
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/** Represent any kind of capacity.
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Any kind of capacity that can be expressed in units of Byte, KiB, MiB and so on. Also prints
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capacities in nicely formatted ways.
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@author Volker Lanz <vl@fidra.de>
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*/
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class LIBKPMCORE_EXPORT Capacity
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{
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public:
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/** Units we can deal with */
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enum class Unit : uint { Byte, KiB, MiB, GiB, TiB, PiB, EiB, ZiB, YiB };
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/** Type of capacity to print */
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enum class Type { Used, Available, Total };
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/** Flags for printing */
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enum Flag { NoFlags = 0, AppendUnit = 1, AppendBytes = 2 };
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Q_DECLARE_FLAGS(Flags, Flag)
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public:
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explicit Capacity(qint64 size);
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explicit Capacity(const Partition& p, Type t = Type::Total);
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Capacity(const Device& d);
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public:
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bool operator==(const Capacity& other) const {
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return other.m_Size == m_Size;
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}
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bool operator!=(const Capacity& other) const {
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return other.m_Size != m_Size;
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}
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bool operator>(const Capacity& other) const {
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return other.m_Size > m_Size;
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}
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bool operator<(const Capacity& other) const {
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return other.m_Size < m_Size;
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}
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bool operator>=(const Capacity& other) const {
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return other.m_Size >= m_Size;
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}
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bool operator<=(const Capacity& other) const {
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return other.m_Size <= m_Size;
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}
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qint64 toInt(Unit u) const;
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double toDouble(Unit u) const;
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bool isValid() const;
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static QString formatByteSize(double size, int precision = 2);
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static const QString& invalidString() {
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return m_InvalidString; /**< @return string representing an invalid capacity */
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}
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static QString unitName(Unit u, qint64 val = 1);
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static qint64 unitFactor(Unit from, Unit to);
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private:
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qint64 m_Size;
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static const QString m_InvalidString;
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};
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Q_DECLARE_OPERATORS_FOR_FLAGS(Capacity::Flags)
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#endif
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