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/* Copyright 2013 MultiMC Contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <QObject>
#include "libmmc_config.h"
class InstVersionList;
/*!
* An abstract base class for instance versions.
* InstVersions hold information about versions such as their names, identifiers,
* types, etc.
*/
class LIBMULTIMC_EXPORT InstVersion : public QObject
{
Q_OBJECT
/*!
* A string used to identify this version in config files.
* This should be unique within the version list or shenanigans will occur.
*/
Q_PROPERTY(QString descriptor READ descriptor CONSTANT)
/*!
* The name of this version as it is displayed to the user.
* For example: "1.5.1"
*/
Q_PROPERTY(QString name READ name)
/*!
* The name of this version's type as it is displayed to the user.
* For example: "Latest Version", "Snapshot", or "MCNostalgia"
*/
Q_PROPERTY(QString typeName READ typeName)
/*!
* Gets the version's timestamp.
* This is primarily used for sorting versions in a list.
*/
Q_PROPERTY(qint64 timestamp READ timestamp)
public:
/*!
* \brief Constructs a new InstVersion with the given parent.
* The parent *must* be the InstVersionList that contains this InstVersion.
* The InstVersion will be added to the list immediately after being created.
*/
explicit InstVersion(const QString &descriptor,
const QString &name,
qint64 timestamp,
InstVersionList *parent = 0);
/*!
* Copy constructor.
* If the 'parent' parameter is not NULL, sets this version's parent to the
* specified object, rather than setting it to the same parent as the version
* we're copying from.
* \param other The version to copy.
* \param parent If not NULL, will be set as the new version object's parent.
*/
InstVersion(const InstVersion &other, QObject *parent = 0);
virtual QString descriptor() const;
virtual QString name() const;
virtual QString typeName() const = 0;
virtual qint64 timestamp() const;
virtual InstVersionList *versionList() const;
/*!
* Creates a copy of this version with a different parent.
* \param newParent The parent QObject of the copy.
* \return A new, identical copy of this version with the given parent set.
*/
virtual InstVersion *copyVersion(InstVersionList *newParent) const = 0;
/*!
* Checks if this version is less (older) than the given version.
* \param other The version to compare this one to.
* \return True if this version is older than the given version.
*/
virtual bool isLessThan(const InstVersion &other) const;
/*!
* Checks if this version is greater (newer) than the given version.
* \param other The version to compare this one to.
* \return True if this version is newer than the given version.
*/
virtual bool isGreaterThan(const InstVersion &other) const;
/*!
* \sa shouldSortBefore()
*/
virtual bool operator<(const InstVersion &rhs) { return isLessThan(rhs); }
/*!
* \sa shouldSortAfter()
*/
virtual bool operator>(const InstVersion &rhs) { return isGreaterThan(rhs); }
protected:
QString m_descriptor;
QString m_name;
qint64 m_timestamp;
};
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