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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_LOG_WRITER_BASE_H__ 00022 #define __XN_LOG_WRITER_BASE_H__ 00023 00024 //--------------------------------------------------------------------------- 00025 // Includes 00026 //--------------------------------------------------------------------------- 00027 #include <XnLogTypes.h> 00028 #include <XnLog.h> 00029 00030 //--------------------------------------------------------------------------- 00031 // Types 00032 //--------------------------------------------------------------------------- 00033 class XnLogWriterBase 00034 { 00035 public: 00036 XnLogWriterBase() : m_bRegistered(FALSE) 00037 { 00038 m_cObject.pCookie = this; 00039 m_cObject.WriteEntry = WriteEntryCallback; 00040 m_cObject.WriteUnformatted = WriteUnformattedCallback; 00041 m_cObject.OnConfigurationChanged = OnConfigurationChangedCallback; 00042 m_cObject.OnClosing = OnClosingCallback; 00043 } 00044 00045 virtual ~XnLogWriterBase() 00046 { 00047 Unregister(); 00048 } 00049 00050 XnStatus Register() 00051 { 00052 XnStatus nRetVal = XN_STATUS_OK; 00053 00054 if (!m_bRegistered) 00055 { 00056 OnRegister(); 00057 00058 nRetVal = xnLogRegisterLogWriter(&m_cObject); 00059 if (nRetVal != XN_STATUS_OK) 00060 { 00061 OnUnregister(); 00062 return (nRetVal); 00063 } 00064 00065 m_bRegistered = TRUE; 00066 } 00067 00068 return (XN_STATUS_OK); 00069 } 00070 00071 void Unregister() 00072 { 00073 if (m_bRegistered) 00074 { 00075 xnLogUnregisterLogWriter(&m_cObject); 00076 m_bRegistered = FALSE; 00077 00078 OnUnregister(); 00079 } 00080 } 00081 00082 inline XnBool IsRegistered() { return m_bRegistered; } 00083 00084 virtual void WriteEntry(const XnLogEntry* pEntry) = 0; 00085 virtual void WriteUnformatted(const XnChar* strMessage) = 0; 00086 virtual void OnConfigurationChanged() {}; 00087 virtual void OnClosing() 00088 { 00089 Unregister(); 00090 }; 00091 00092 operator const XnLogWriter*() const 00093 { 00094 return &m_cObject; 00095 } 00096 00097 protected: 00098 virtual void OnRegister() {} 00099 virtual void OnUnregister() {} 00100 00101 private: 00102 static void XN_CALLBACK_TYPE WriteEntryCallback(const XnLogEntry* pEntry, void* pCookie) 00103 { 00104 XnLogWriterBase* pThis = (XnLogWriterBase*)pCookie; 00105 pThis->WriteEntry(pEntry); 00106 } 00107 static void XN_CALLBACK_TYPE WriteUnformattedCallback(const XnChar* strMessage, void* pCookie) 00108 { 00109 XnLogWriterBase* pThis = (XnLogWriterBase*)pCookie; 00110 pThis->WriteUnformatted(strMessage); 00111 } 00112 static void XN_CALLBACK_TYPE OnConfigurationChangedCallback(void* pCookie) 00113 { 00114 XnLogWriterBase* pThis = (XnLogWriterBase*)pCookie; 00115 pThis->OnConfigurationChanged(); 00116 } 00117 static void XN_CALLBACK_TYPE OnClosingCallback(void* pCookie) 00118 { 00119 XnLogWriterBase* pThis = (XnLogWriterBase*)pCookie; 00120 pThis->OnClosing(); 00121 } 00122 00123 XnLogWriter m_cObject; 00124 XnBool m_bRegistered; 00125 }; 00126 00127 #endif // __XN_LOG_WRITER_BASE_H__