ThreadManager.h

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/*  Copyright (C) 2008 National Institute For Space Research (INPE) - Brazil.
 
This file is part of the TerraLib - a Framework for building GIS enabled applications.
 
TerraLib is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License,
or (at your option) any later version.
 
TerraLib is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
 
You should have received a copy of the GNU Lesser General Public License
along with TerraLib. See COPYING. If not, write to
TerraLib Team at <terralib-team@terralib.org>.
*/
 
/*!
\file terralib/qt/widgets/canvas/ThreadManager.h
 
\brief Manager for threads of rendering.
*/
 
#ifndef __TERRALIB_QT_WIDGETS_INTERNAL_THREADMANAGER_H
#define __TERRALIB_QT_WIDGETS_INTERNAL_THREADMANAGER_H
 
//Terralib
#include "../Config.h"
 
//Qt
#include <QObject>
 
//STL
#include <vector>
 
class QRunnable;
class QThreadPool;
class QTimer;
 
namespace te
{
  namespace qt
  {
    namespace widgets
    {
      class TEQTWIDGETSEXPORT ThreadManager : public QObject
      {
        Q_OBJECT
 
      public:
 
        ThreadManager(const std::vector<QRunnable*>& threads, int interval=-1);
 
        ~ThreadManager();
 
        /*!
          \brief Run the internal runnable objects.
          \param enableMultiThread If enabled multiple threads will be executed, if false multi-threading is disabled).
        */        
        void run( const bool enableMultiThread = true );
 
        void stopProccess();
 
      Q_SIGNALS:
 
        void showFeedback();
 
        void finished();
 
      protected slots:
 
        void onThreadFinished();
 
      protected:
 
        std::vector<QRunnable*> m_threads;
 
        QThreadPool* m_pool;
 
        QTimer* m_timer;
 
        int m_interval;
      };
    }
  }
}
 
#endif //__TERRALIB_QT_WIDGETS_INTERNAL_THREADMANAGER_H