pollymc/logic/InstanceList.h
2015-04-12 20:57:18 +02:00

184 lines
4.7 KiB
C++

/* Copyright 2013-2015 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 <QAbstractListModel>
#include <QSet>
#include "BaseInstance.h"
class BaseInstance;
class QDir;
class InstanceList : public QAbstractListModel
{
Q_OBJECT
private:
void loadGroupList(QMap<QString, QString> &groupList);
public
slots:
void saveGroupList();
public:
explicit InstanceList(SettingsObjectPtr globalSettings, const QString &instDir, QObject *parent = 0);
virtual ~InstanceList();
public:
QModelIndex index(int row, int column = 0, const QModelIndex &parent = QModelIndex()) const;
int rowCount(const QModelIndex &parent = QModelIndex()) const;
QVariant data(const QModelIndex &index, int role) const;
Qt::ItemFlags flags(const QModelIndex &index) const;
enum AdditionalRoles
{
GroupRole = Qt::UserRole,
InstancePointerRole = 0x34B1CB48, ///< Return pointer to real instance
InstanceIDRole = 0x34B1CB49 ///< Return id if the instance
};
/*!
* \brief Error codes returned by functions in the InstanceList class.
* NoError Indicates that no error occurred.
* UnknownError indicates that an unspecified error occurred.
*/
enum InstListError
{
NoError = 0,
UnknownError
};
enum InstLoadError
{
NoLoadError = 0,
UnknownLoadError,
NotAnInstance
};
enum InstCreateError
{
NoCreateError = 0,
NoSuchVersion,
UnknownCreateError,
InstExists,
CantCreateDir
};
QString instDir() const
{
return m_instDir;
}
/*!
* \brief Get the instance at index
*/
InstancePtr at(int i) const
{
return m_instances.at(i);
}
;
/*!
* \brief Get the count of loaded instances
*/
int count() const
{
return m_instances.count();
}
;
/// Clear all instances. Triggers notifications.
void clear();
/// Add an instance. Triggers notifications, returns the new index
int add(InstancePtr t);
/// Get an instance by ID
InstancePtr getInstanceById(QString id) const;
QModelIndex getInstanceIndexById(const QString &id) const;
// FIXME: instead of iterating through all instances and forming a set, keep the set around
QStringList getGroups();
/*!
* \brief Creates a stub instance
*
* \param inst Pointer to store the created instance in.
* \param version Game version to use for the instance
* \param instDir The new instance's directory.
* \return An InstCreateError error code.
* - InstExists if the given instance directory is already an instance.
* - CantCreateDir if the given instance directory cannot be created.
*/
InstCreateError createInstance(InstancePtr &inst, BaseVersionPtr version,
const QString &instDir);
/*!
* \brief Creates a copy of an existing instance with a new name
*
* \param newInstance Pointer to store the created instance in.
* \param oldInstance The instance to copy
* \param instDir The new instance's directory.
* \return An InstCreateError error code.
* - InstExists if the given instance directory is already an instance.
* - CantCreateDir if the given instance directory cannot be created.
*/
InstCreateError copyInstance(InstancePtr &newInstance, InstancePtr &oldInstance,
const QString &instDir);
/*!
* \brief Loads an instance from the given directory.
* Checks the instance's INI file to figure out what the instance's type is first.
* \param inst Pointer to store the loaded instance in.
* \param instDir The instance's directory.
* \return An InstLoadError error code.
* - NotAnInstance if the given instance directory isn't a valid instance.
*/
InstLoadError loadInstance(InstancePtr &inst, const QString &instDir);
signals:
void dataIsInvalid();
public
slots:
void on_InstFolderChanged(const Setting &setting, QVariant value);
/*!
* \brief Loads the instance list. Triggers notifications.
*/
InstListError loadList();
private
slots:
void propertiesChanged(BaseInstance *inst);
void instanceNuked(BaseInstance *inst);
void groupChanged();
private:
int getInstIndex(BaseInstance *inst) const;
public:
static bool continueProcessInstance(InstancePtr instPtr, const int error, const QDir &dir,
QMap<QString, QString> &groupMap);
protected:
QString m_instDir;
QList<InstancePtr> m_instances;
QSet<QString> m_groups;
SettingsObjectPtr m_globalSettings;
};