1 files changed, 78 insertions, 0 deletions
diff --git a/backend/tasks/Task.h b/backend/tasks/Task.h
new file mode 100644
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--- /dev/null
+++ b/backend/tasks/Task.h
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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 <QThread>
+#include <QString>
+
+#include "libmmc_config.h"
+
+class LIBMULTIMC_EXPORT Task : public QThread
+{
+	Q_OBJECT
+public:
+	explicit Task(QObject *parent = 0);
+	
+	// Starts the task.
+	void startTask();
+	
+	QString getStatus() const;
+	int getProgress() 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);
+	
+public 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 run();
+	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;
+};
+
+#endif // TASK_H