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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.
*/
#ifndef TASK_H
#define TASK_H
#include <QObject>
#include <QString>
#include "libmmc_config.h"
class LIBMULTIMC_EXPORT Task : public QObject
{
Q_OBJECT
public:
explicit Task(QObject *parent = 0);
// Starts the task.
void startTask();
QString getStatus() const;
int getProgress() const;
bool isRunning() const;
/*!
* \brief Calculates and sets the task's progress based on the number of parts completed out of the total number to complete.
* This is essentially just shorthand for setProgress((parts / whole) * 100);
* \param parts The parts out of the whole completed. This parameter should
* be less than whole. If it is greater than whole, progress is set to 100.
* \param whole The total number of things that need to be completed.
*/
void calcProgress(int parts, int whole);
protected slots:
void setStatus(const QString& status);
void setProgress(int progress);
signals:
void started(Task* task);
void ended(Task* task);
void started();
void ended();
void statusChanged(Task* task, const QString& status);
void progressChanged(Task* task, int progress);
void statusChanged(const QString& status);
void progressChanged(int progress);
protected:
virtual void executeTask() = 0;
virtual void emitStarted();
virtual void emitEnded();
virtual void emitStatusChange(const QString &status);
virtual void emitProgressChange(int progress);
QString status;
int progress;
bool running = false;
};
#endif // TASK_H
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