OW_SelectEngine.hpp

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00001 /*******************************************************************************
00002 * Copyright (C) 2001-2004 Vintela, Inc. All rights reserved.
00003 *
00004 * Redistribution and use in source and binary forms, with or without
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00007 *  - Redistributions of source code must retain the above copyright notice,
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00010 *  - Redistributions in binary form must reproduce the above copyright notice,
00011 *    this list of conditions and the following disclaimer in the documentation
00012 *    and/or other materials provided with the distribution.
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00014 *  - Neither the name of Vintela, Inc. nor the names of its
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00018 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
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00030 
00036 #ifndef OW_SELECT_ENGINE_HPP_
00037 #define OW_SELECT_ENGINE_HPP_
00038 #include "OW_config.h"
00039 #include "OW_SelectableIFC.hpp"
00040 #include "OW_SelectableCallbackIFC.hpp"
00041 #include "OW_Array.hpp"
00042 #include "OW_Exception.hpp"
00043 
00044 // The classes and functions defined in this file are not meant for general
00045 // use, they are internal implementation details.  They may change at any time.
00046 
00047 namespace OW_NAMESPACE
00048 {
00049 
00050 OW_DECLARE_APIEXCEPTION(Select, OW_COMMON_API)
00051 class OW_COMMON_API SelectEngine
00052 {
00053 public:
00054    void addSelectableObject(const SelectableIFCRef& obj,
00055       const SelectableCallbackIFCRef& cb);
00056    void go(); // Throws SelectException on error
00057    void stop();
00058 private:
00059 
00060 #ifdef OW_WIN32
00061 #pragma warning (push)
00062 #pragma warning (disable: 4251)
00063 #endif
00064 
00065    Array<SelectableIFCRef> m_selectableObjs;
00066    Array<SelectableCallbackIFCRef> m_callbacks;
00067 
00068 #ifdef OW_WIN32
00069 #pragma warning (pop)
00070 #endif
00071 
00072    bool m_stopFlag;
00073 };
00074 
00075 class OW_COMMON_API SelectEngineStopper : public SelectableCallbackIFC
00076 {
00077 public:
00078    SelectEngineStopper(SelectEngine& engine);
00079 protected:
00080    virtual void doSelected(SelectableIFCRef& selectedObject);
00081 private:
00082    SelectEngine& m_engine;
00083 };
00084 
00085 } // end namespace OW_NAMESPACE
00086 
00087 #endif

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