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libsfml  1.6+dfsg2
ResourcePtr.inl
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00001 
00002 //
00003 // SFML - Simple and Fast Multimedia Library
00004 // Copyright (C) 2007 Laurent Gomila (laurent.gom@gmail.com)
00005 //
00006 // This software is provided 'as-is', without any express or implied warranty.
00007 // In no event will the authors be held liable for any damages arising from the use of this software.
00008 //
00009 // Permission is granted to anyone to use this software for any purpose,
00010 // including commercial applications, and to alter it and redistribute it freely,
00011 // subject to the following restrictions:
00012 //
00013 // 1. The origin of this software must not be misrepresented;
00014 //    you must not claim that you wrote the original software.
00015 //    If you use this software in a product, an acknowledgment
00016 //    in the product documentation would be appreciated but is not required.
00017 //
00018 // 2. Altered source versions must be plainly marked as such,
00019 //    and must not be misrepresented as being the original software.
00020 //
00021 // 3. This notice may not be removed or altered from any source distribution.
00022 //
00024 
00025 
00029 template <typename T>
00030 ResourcePtr<T>::ResourcePtr() :
00031 myResource(NULL)
00032 {
00033 
00034 }
00035 
00036 
00040 template <typename T>
00041 ResourcePtr<T>::ResourcePtr(const T* Resource) :
00042 myResource(Resource)
00043 {
00044     if (myResource)
00045         myResource->Connect(*this);
00046 }
00047 
00048 
00052 template <typename T>
00053 ResourcePtr<T>::ResourcePtr(const ResourcePtr<T>& Copy) :
00054 myResource(Copy.myResource)
00055 {
00056     if (myResource)
00057         myResource->Connect(*this);
00058 }
00059 
00060 
00064 template <typename T>
00065 ResourcePtr<T>::~ResourcePtr()
00066 {
00067     if (myResource)
00068         myResource->Disconnect(*this);
00069 }
00070 
00071 
00075 template <typename T>
00076 ResourcePtr<T>& ResourcePtr<T>::operator =(const ResourcePtr<T>& Other)
00077 {
00078     if (myResource)
00079         myResource->Disconnect(*this);
00080 
00081     myResource = Other.myResource;
00082 
00083     if (myResource)
00084         myResource->Connect(*this);
00085 
00086     return *this;
00087 }
00088 
00089 
00093 template <typename T>
00094 ResourcePtr<T>& ResourcePtr<T>::operator =(const T* Resource)
00095 {
00096     if (myResource)
00097         myResource->Disconnect(*this);
00098 
00099     myResource = Resource;
00100 
00101     if (myResource)
00102         myResource->Connect(*this);
00103 
00104     return *this;
00105 }
00106 
00107 
00114 template <typename T>
00115 ResourcePtr<T>::operator const T*() const
00116 {
00117     return myResource;
00118 }
00119 
00120 
00124 template <typename T>
00125 const T& ResourcePtr<T>::operator *() const
00126 {
00127     return *myResource;
00128 }
00129 
00130 
00134 template <typename T>
00135 const T* ResourcePtr<T>::operator ->() const
00136 {
00137     return myResource;
00138 }
00139 
00140 
00145 template <typename T>
00146 void ResourcePtr<T>::OnResourceDestroyed()
00147 {
00148     myResource = NULL;
00149 }