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E:/Projetos_Primeiro_Semestre_2012/TerraView/terralib/src/terralib/kernel/TeProgress.h
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    00001 /************************************************************************************
    00002 TerraLib - a library for developing GIS applications.
    00003 Copyright © 2001-2007 INPE and Tecgraf/PUC-Rio.
    00004
    00005 This code is part of the TerraLib library.
    00006 This library is free software; you can redistribute it and/or
    00007 modify it under the terms of the GNU Lesser General Public
    00008 License as published by the Free Software Foundation; either
    00009 version 2.1 of the License, or (at your option) any later version.
    00010
    00011 You should have received a copy of the GNU Lesser General Public
    00012 License along with this library.
    00013
    00014 The authors reassure the license terms regarding the warranties.
    00015 They specifically disclaim any warranties, including, but not limited to,
    00016 the implied warranties of merchantability and fitness for a particular purpose.
    00017 The library provided hereunder is on an "as is" basis, and the authors have no
    00018 obligation to provide maintenance, support, updates, enhancements, or modifications.
    00019 In no event shall INPE and Tecgraf / PUC-Rio be held liable to any party for direct,
    00020 indirect, special, incidental, or consequential damages arising out of the use
    00021 of this library and its documentation.
    00022 *************************************************************************************/
    00027 #ifndef  __TERRALIB_INTERNAL_PROGRESS_H
    00028 #define  __TERRALIB_INTERNAL_PROGRESS_H
    00029
    00030 #include "TeProgressBase.h"
    00031
    00033 /*
    00034            This class is based on a Singleton Design Pattern (See "Design Patterns" book, page 127).
    00035            Applications should set the Progress Interface that will be used by the TerraLib routines
    00036            able to indicate progress in executing a task.
    00037 */
    00038 class TL_DLL TeProgress
    00039 {
    00040 public:
    00041
    00043            static TeProgressBase* instance();
    00044
    00046            static void setProgressInterf( TeProgressBase* interf );
    00047
    00049            virtual ~TeProgress() {}
    00050
    00051 protected:
    00052
    00054            TeProgress() {}
    00055
    00056 private:
    00057
    00058            static TeProgressBase* instance_;
    00059
    00061            TeProgress(const TeProgress&);
    00062
    00064            TeProgress& operator=(const TeProgress&){return *this;}
    00065 };
    00066 #endif
    00067

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