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https://github.com/MultiMC/MultiMC5.git
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121 lines
3.9 KiB
C++
121 lines
3.9 KiB
C++
/* Copyright 2013 MultiMC Contributors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <QObject>
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#include <QVariant>
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#include <QAbstractListModel>
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#include "logic/BaseVersion.h"
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class Task;
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/*!
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* \brief Class that each instance type's version list derives from.
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* Version lists are the lists that keep track of the available game versions
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* for that instance. This list will not be loaded on startup. It will be loaded
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* when the list's load function is called. Before using the version list, you
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* should check to see if it has been loaded yet and if not, load the list.
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*
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* Note that this class also inherits from QAbstractListModel. Methods from that
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* class determine how this version list shows up in a list view. Said methods
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* all have a default implementation, but they can be overridden by plugins to
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* change the behavior of the list.
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*/
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class BaseVersionList : public QAbstractListModel
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{
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Q_OBJECT
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public:
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enum ModelRoles
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{
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VersionPointerRole = 0x34B1CB48
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};
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enum VListColumns
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{
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// First column - Name
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NameColumn = 0,
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// Second column - Type
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TypeColumn,
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// Third column - Timestamp
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TimeColumn
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};
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explicit BaseVersionList(QObject *parent = 0);
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/*!
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* \brief Gets a task that will reload the version list.
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* Simply execute the task to load the list.
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* The task returned by this function should reset the model when it's done.
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* \return A pointer to a task that reloads the version list.
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*/
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virtual Task *getLoadTask() = 0;
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//! Checks whether or not the list is loaded. If this returns false, the list should be
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//loaded.
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virtual bool isLoaded() = 0;
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//! Gets the version at the given index.
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virtual const BaseVersionPtr at(int i) const = 0;
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//! Returns the number of versions in the list.
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virtual int count() const = 0;
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//////// List Model Functions ////////
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virtual QVariant data(const QModelIndex &index, int role) const;
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virtual QVariant headerData(int section, Qt::Orientation orientation, int role) const;
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virtual int rowCount(const QModelIndex &parent) const;
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virtual int columnCount(const QModelIndex &parent) const;
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/*!
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* \brief Finds a version by its descriptor.
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* \param The descriptor of the version to find.
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* \return A const pointer to the version with the given descriptor. NULL if
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* one doesn't exist.
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*/
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virtual BaseVersionPtr findVersion(const QString &descriptor);
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/*!
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* \brief Gets the latest stable version of this instance type.
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* This is the version that will be selected by default.
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* By default, this is simply the first version in the list.
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*/
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virtual BaseVersionPtr getLatestStable() const;
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/*!
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* Sorts the version list.
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*/
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virtual void sort() = 0;
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protected
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slots:
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/*!
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* Updates this list with the given list of versions.
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* This is done by copying each version in the given list and inserting it
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* into this one.
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* We need to do this so that we can set the parents of the versions are set to this
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* version list. This can't be done in the load task, because the versions the load
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* task creates are on the load task's thread and Qt won't allow their parents
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* to be set to something created on another thread.
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* To get around that problem, we invoke this method on the GUI thread, which
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* then copies the versions and sets their parents correctly.
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* \param versions List of versions whose parents should be set.
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*/
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virtual void updateListData(QList<BaseVersionPtr> versions) = 0;
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};
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