00001 /* ///////////////////////////////////////////////////////////////////////// 00002 * File: dotnetstl/collections/object_enumerators.hpp 00003 * 00004 * Purpose: A simple object enumerator, based on ArrayList. 00005 * 00006 * Created: 24th June 2003 00007 * Updated: 10th August 2009 00008 * 00009 * Home: http://stlsoft.org/ 00010 * 00011 * Copyright (c) 2003-2009, Matthew Wilson and Synesis Software 00012 * All rights reserved. 00013 * 00014 * Redistribution and use in source and binary forms, with or without 00015 * modification, are permitted provided that the following conditions are met: 00016 * 00017 * - Redistributions of source code must retain the above copyright notice, this 00018 * list of conditions and the following disclaimer. 00019 * - Redistributions in binary form must reproduce the above copyright notice, 00020 * this list of conditions and the following disclaimer in the documentation 00021 * and/or other materials provided with the distribution. 00022 * - Neither the name(s) of Matthew Wilson and Synesis Software nor the names of 00023 * any contributors may be used to endorse or promote products derived from 00024 * this software without specific prior written permission. 00025 * 00026 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 00027 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00028 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00029 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 00030 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 00031 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 00032 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00033 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00034 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 00035 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00036 * POSSIBILITY OF SUCH DAMAGE. 00037 * 00038 * ////////////////////////////////////////////////////////////////////// */ 00039 00040 00048 #ifndef DOTNETSTL_INCL_DOTNETSTL_COLLECTIONS_HPP_OBJECT_ENUMERATORS 00049 #define DOTNETSTL_INCL_DOTNETSTL_COLLECTIONS_HPP_OBJECT_ENUMERATORS 00050 00051 #ifndef STLSOFT_DOCUMENTATION_SKIP_SECTION 00052 #define DOTNETSTL_VER_DOTNETSTL_COLLECTIONS_HPP_OBJECT_ENUMERATORS_MAJOR 4 00053 #define DOTNETSTL_VER_DOTNETSTL_COLLECTIONS_HPP_OBJECT_ENUMERATORS_MINOR 0 00054 #define DOTNETSTL_VER_DOTNETSTL_COLLECTIONS_HPP_OBJECT_ENUMERATORS_REVISION 2 00055 #define DOTNETSTL_VER_DOTNETSTL_COLLECTIONS_HPP_OBJECT_ENUMERATORS_EDIT 27 00056 #endif /* !STLSOFT_DOCUMENTATION_SKIP_SECTION */ 00057 00058 /* ///////////////////////////////////////////////////////////////////////// 00059 * Includes 00060 */ 00061 00062 #ifndef DOTNETSTL_INCL_DOTNETSTL_HPP_DOTNETSTL 00063 # include <dotnetstl/dotnetstl.hpp> 00064 #endif /* !DOTNETSTL_INCL_DOTNETSTL_HPP_DOTNETSTL */ 00065 00066 /* ////////////////////////////////////////////////////////////////////// */ 00067 00068 #ifdef _STLSOFT_NO_NAMESPACE 00069 /* There is no stlsoft namespace, so must define ::dotnetstl */ 00070 namespace dotnetstl 00071 { 00072 #else 00073 /* Define stlsoft::dotnet_project */ 00074 00075 namespace stlsoft 00076 { 00077 00078 namespace dotnetstl_project 00079 { 00080 00081 #endif /* _STLSOFT_NO_NAMESPACE */ 00082 00083 /* ///////////////////////////////////////////////////////////////////////// 00084 * Classes 00085 */ 00086 00091 public __gc class ArrayListEnumerator 00092 : public System::Collections::IEnumerator 00093 { 00094 // typedef System::Collections::ArrayList ArrayList; 00095 00096 public: 00098 ArrayListEnumerator(System::Collections::ArrayList *objects) 00099 : m_objects(objects) 00100 , m_index(-1) 00101 {} 00102 00103 public: // VC++ 7.1 requires that these be public 00105 Object* get_Current() 00106 { 00107 if( m_index < 0 || 00108 !(m_index < m_objects->get_Count())) 00109 { 00110 throw new System::InvalidOperationException(); 00111 } 00112 00113 return m_objects->get_Item(m_index); 00114 } 00115 00120 bool MoveNext() 00121 { 00122 if(m_index < m_objects->get_Count() - 1) 00123 { 00124 ++m_index; 00125 00126 return true; 00127 } 00128 else 00129 { 00130 return false; 00131 } 00132 } 00133 00135 void Reset() 00136 { 00137 m_index = -1; 00138 } 00139 00140 // Members 00141 private: 00142 System::Collections::ArrayList *m_objects; 00143 int m_index; 00144 00145 // Not to be implemented 00146 private: 00147 ArrayListEnumerator(ArrayListEnumerator const&) 00148 {} 00149 // ArrayListEnumerator& operator =(ArrayListEnumerator const&); 00150 }; 00151 00153 // Unit-testing 00154 00155 #ifdef STLSOFT_UNITTEST 00156 # include "./unittest/object_enumerators_unittest_.h" 00157 #endif /* STLSOFT_UNITTEST */ 00158 00159 /* ////////////////////////////////////////////////////////////////////// */ 00160 00161 #ifdef _STLSOFT_NO_NAMESPACE 00162 } // namespace dotnetstl 00163 #else 00164 } // namespace dotnetstl_project 00165 } // namespace stlsoft 00166 #endif /* _STLSOFT_NO_NAMESPACE */ 00167 00168 /* ////////////////////////////////////////////////////////////////////// */ 00169 00170 #endif /* DOTNETSTL_INCL_DOTNETSTL_COLLECTIONS_HPP_OBJECT_ENUMERATORS */ 00171 00172 /* ///////////////////////////// end of file //////////////////////////// */