glc_contextmanager.h

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00001 /****************************************************************************
00002 
00003  This file is part of the GLC-lib library.
00004  Copyright (C) 2005-2008 Laurent Ribon (laumaya@users.sourceforge.net)
00005  http://glc-lib.sourceforge.net
00006 
00007  GLC-lib is free software; you can redistribute it and/or modify
00008  it under the terms of the GNU Lesser General Public License as published by
00009  the Free Software Foundation; either version 3 of the License, or
00010  (at your option) any later version.
00011 
00012  GLC-lib is distributed in the hope that it will be useful,
00013  but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  GNU Lesser General Public License for more details.
00016 
00017  You should have received a copy of the GNU Lesser General Public License
00018  along with GLC-lib; if not, write to the Free Software
00019  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
00020 
00021  *****************************************************************************/
00023 
00024 #ifndef GLC_CONTEXTMANAGER_H_
00025 #define GLC_CONTEXTMANAGER_H_
00026 
00027 #include <QSet>
00028 
00029 #include "glc_config.h"
00030 
00031 
00032 class GLC_Context;
00033 
00036 
00037 
00038 class GLC_LIB_EXPORT GLC_ContextManager
00039 {
00040 private:
00041         GLC_ContextManager();
00042 public:
00043         virtual ~GLC_ContextManager();
00044 
00046 
00047 
00049 
00050 public:
00052         static GLC_ContextManager* instance();
00053 
00055         GLC_Context* currentContext() const;
00056 
00058         inline bool currentContextExists() const
00059         {return (NULL != m_pCurrentContext);}
00060 
00062         inline bool hasContext() const
00063         {return !m_SetOfContext.isEmpty();}
00064 
00066 
00067 
00069 
00070 public:
00072         void addContext(GLC_Context* pContext);
00073 
00075         void remove(GLC_Context* pContext);
00076 
00078         void setCurrent(GLC_Context* pContext);
00079 
00081 
00083 
00084 private:
00086 
00088 
00089 
00091 // Private members
00093 private:
00095         static GLC_ContextManager* m_pContextManager;
00096 
00098         GLC_Context* m_pCurrentContext;
00099 
00101         QSet<GLC_Context*> m_SetOfContext;
00102 };
00103 
00104 #endif /* GLC_CONTEXTMANAGER_H_ */

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©2005-2011 Laurent Ribon