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OpenNI 1.5.7
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00001 /***************************************************************************** 00002 * * 00003 * OpenNI 1.x Alpha * 00004 * Copyright (C) 2012 PrimeSense Ltd. * 00005 * * 00006 * This file is part of OpenNI. * 00007 * * 00008 * Licensed under the Apache License, Version 2.0 (the "License"); * 00009 * you may not use this file except in compliance with the License. * 00010 * You may obtain a copy of the License at * 00011 * * 00012 * http://www.apache.org/licenses/LICENSE-2.0 * 00013 * * 00014 * Unless required by applicable law or agreed to in writing, software * 00015 * distributed under the License is distributed on an "AS IS" BASIS, * 00016 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * 00017 * See the License for the specific language governing permissions and * 00018 * limitations under the License. * 00019 * * 00020 *****************************************************************************/ 00021 #ifndef _XN_QUEUE_H 00022 #define _XN_QUEUE_H 00023 00024 //--------------------------------------------------------------------------- 00025 // Includes 00026 //--------------------------------------------------------------------------- 00027 #include "XnList.h" 00028 00029 //--------------------------------------------------------------------------- 00030 // Types 00031 //--------------------------------------------------------------------------- 00035 class XnQueue 00036 { 00037 public: 00041 XnQueue() {} 00045 virtual ~XnQueue() {} 00046 00050 virtual XnStatus Init() 00051 { 00052 return (XN_STATUS_OK); 00053 } 00054 00062 virtual XnStatus Push(XnValue const& value) 00063 { 00064 XnStatus nRetVal = XN_STATUS_OK; 00065 00066 nRetVal = m_List.AddLast(value); 00067 XN_IS_STATUS_OK(nRetVal); 00068 00069 return (XN_STATUS_OK); 00070 } 00078 virtual XnStatus Pop(XnValue& value) 00079 { 00080 if (IsEmpty()) 00081 { 00082 return XN_STATUS_IS_EMPTY; 00083 } 00084 00085 value = *(m_List.begin()); 00086 return m_List.Remove(m_List.begin()); 00087 } 00088 00094 XnValue const& Top() const 00095 { 00096 return *(m_List.begin()); 00097 } 00098 00104 XnValue& Top() 00105 { 00106 return *(m_List.begin()); 00107 } 00108 00112 XnBool IsEmpty() const 00113 { 00114 return m_List.IsEmpty(); 00115 } 00116 00120 virtual XnUInt32 Size() const 00121 { 00122 return m_List.Size(); 00123 } 00124 00125 private: 00126 XN_DISABLE_COPY_AND_ASSIGN(XnQueue); 00127 00129 XnList m_List; 00130 }; 00131 00137 #define XN_DECLARE_QUEUE_WITH_TRANSLATOR_DECL(decl, Type, ClassName, Translator, base) \ 00138 class decl ClassName : public base \ 00139 { \ 00140 public: \ 00141 ClassName() {} \ 00142 ~ClassName() \ 00143 { \ 00144 /* We do this using Pop() to make sure memory is freed. */ \ 00145 Type dummy; \ 00146 while (Size() != 0) \ 00147 Pop(dummy); \ 00148 } \ 00149 XnStatus Push(Type const& value) \ 00150 { \ 00151 XnValue val = Translator::CreateValueCopy(value); \ 00152 XnStatus nRetVal = base::Push(val); \ 00153 if (nRetVal != XN_STATUS_OK) \ 00154 { \ 00155 Translator::FreeValue(val); \ 00156 return (nRetVal); \ 00157 } \ 00158 return XN_STATUS_OK; \ 00159 } \ 00160 XnStatus Pop(Type& value) \ 00161 { \ 00162 XnValue val; \ 00163 XnStatus nRetVal = base::Pop(val); \ 00164 if (nRetVal != XN_STATUS_OK) return (nRetVal); \ 00165 value = Translator::GetFromValue(val); \ 00166 Translator::FreeValue(val); \ 00167 return XN_STATUS_OK; \ 00168 } \ 00169 inline Type const& Top() const { return Translator::GetFromValue(base::Top()); }\ 00170 inline Type& Top() { return Translator::GetFromValue(base::Top()); } \ 00171 private: \ 00172 XN_DISABLE_COPY_AND_ASSIGN(ClassName); \ 00173 }; 00174 00180 #define XN_DECLARE_QUEUE_WITH_TRANSLATOR(Type, ClassName, Translator, base) \ 00181 XN_DECLARE_QUEUE_WITH_TRANSLATOR_DECL(, Type, ClassName, Translator, base) 00182 00187 #define XN_DECLARE_QUEUE_DECL(decl, Type, ClassName) \ 00188 XN_DECLARE_DEFAULT_VALUE_TRANSLATOR_DECL(decl, Type, XN_DEFAULT_TRANSLATOR_NAME(ClassName)) \ 00189 XN_DECLARE_QUEUE_WITH_TRANSLATOR_DECL(decl, Type, ClassName, XN_DEFAULT_TRANSLATOR_NAME(ClassName), XnQueue) 00190 00194 #define XN_DECLARE_QUEUE(Type, ClassName) \ 00195 XN_DECLARE_QUEUE_DECL(, Type, ClassName) 00196 00197 #endif // _XN_QUEUE_H