Crazy Eddie's GUI System
0.8.4
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00001 /*********************************************************************** 00002 created: 28/10/2010 00003 author: Martin Preisler (inspired by Ogre3D) 00004 00005 purpose: Wraps CEGUI Allocators to std::allocator class 00006 *************************************************************************/ 00007 /*************************************************************************** 00008 * Copyright (C) 2004 - 2010 Paul D Turner & The CEGUI Development Team 00009 * 00010 * Permission is hereby granted, free of charge, to any person obtaining 00011 * a copy of this software and associated documentation files (the 00012 * "Software"), to deal in the Software without restriction, including 00013 * without limitation the rights to use, copy, modify, merge, publish, 00014 * distribute, sublicense, and/or sell copies of the Software, and to 00015 * permit persons to whom the Software is furnished to do so, subject to 00016 * the following conditions: 00017 * 00018 * The above copyright notice and this permission notice shall be 00019 * included in all copies or substantial portions of the Software. 00020 * 00021 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 00022 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 00023 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 00024 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR 00025 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 00026 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 00027 * OTHER DEALINGS IN THE SOFTWARE. 00028 ***************************************************************************/ 00029 #ifndef _CEGUIMemorySTLWrapper_h_ 00030 #define _CEGUIMemorySTLWrapper_h_ 00031 00032 #ifndef _CEGUIMemoryAllocation_h_ 00033 # error Dont include this directly! Include CEGUIBase.h instead. 00034 #endif 00035 00036 namespace CEGUI 00037 { 00038 00039 #ifdef CEGUI_CUSTOM_ALLOCATORS 00040 00041 template<typename T> 00042 struct STLAllocatorWrapperBase 00043 { 00044 typedef T value_type; 00045 }; 00046 // getting rid of const trick taken from Ogre :-) 00047 template<typename T> 00048 struct STLAllocatorWrapperBase<const T> 00049 { 00050 typedef T value_type; 00051 }; 00052 00053 template <typename T, typename Allocator> 00054 class STLAllocatorWrapper : public STLAllocatorWrapperBase<T> 00055 { 00056 public: 00057 typedef STLAllocatorWrapperBase<T> Base; 00058 typedef typename Base::value_type value_type; 00059 00060 typedef value_type* pointer; 00061 typedef const value_type* const_pointer; 00062 typedef value_type& reference; 00063 typedef const value_type& const_reference; 00064 00065 typedef std::size_t size_type; 00066 typedef std::ptrdiff_t difference_type; 00067 00068 template<typename U> 00069 struct rebind 00070 { 00071 typedef STLAllocatorWrapper<U, Allocator> other; 00072 }; 00073 00074 inline explicit STLAllocatorWrapper() 00075 {} 00076 00077 inline STLAllocatorWrapper(const STLAllocatorWrapper&) 00078 {} 00079 00080 template <typename U, typename P> 00081 inline STLAllocatorWrapper(const STLAllocatorWrapper<U, P>&) 00082 {} 00083 00084 inline pointer address(reference x) const 00085 { 00086 return &x; 00087 } 00088 00089 inline const_pointer address(const_reference x) const 00090 { 00091 return &x; 00092 } 00093 00094 inline size_type max_size() const throw() 00095 { 00096 return Allocator::getMaxAllocationSize(); 00097 } 00098 00099 inline pointer allocate(size_type count, typename std::allocator<void>::const_pointer ptr = 0) 00100 { 00101 (void)ptr; 00102 return static_cast<pointer>(Allocator::allocateBytes(count * sizeof(T))); 00103 } 00104 00105 inline void deallocate(pointer ptr, size_type /*size*/ ) 00106 { 00107 Allocator::deallocateBytes(ptr); 00108 } 00109 00110 inline void construct(pointer p, const T& val) 00111 { 00112 new(static_cast<void*>(p)) T(val); 00113 } 00114 00115 inline void destroy(pointer p) 00116 { 00117 p->~T(); 00118 } 00119 }; 00120 00121 template<typename T, typename T2, typename P> 00122 inline bool operator==(const STLAllocatorWrapper<T, P>&, const STLAllocatorWrapper<T2, P>&) 00123 { 00124 // same allocator, return true 00125 return true; 00126 } 00127 00128 template<typename T, typename P, typename OtherAllocator> 00129 inline bool operator==(const STLAllocatorWrapper<T, P>&, const OtherAllocator&) 00130 { 00131 // if the template abose doesn't get matched, return false (allocators differ) 00132 return false; 00133 } 00134 00135 template<typename T, typename T2, typename P> 00136 inline bool operator!=(const STLAllocatorWrapper<T, P>&, const STLAllocatorWrapper<T2,P>&) 00137 { 00138 // same allocator, return false (they are not different) 00139 return false; 00140 } 00141 00142 template<typename T, typename P, typename OtherAllocator> 00143 inline bool operator!=(const STLAllocatorWrapper<T, P>&, const OtherAllocator&) 00144 { 00145 // the above didn't get matched, that means the allocators differ... 00146 return true; 00147 } 00148 00149 // STL allocator helper macros 00150 #define CEGUI_VECTOR_ALLOC(T) , ::CEGUI::STLAllocatorWrapper<T, ::CEGUI::AllocatorConfig< ::CEGUI::STLAllocator >::Allocator> 00151 #define CEGUI_SET_ALLOC(T) , ::CEGUI::STLAllocatorWrapper<T, ::CEGUI::AllocatorConfig< ::CEGUI::STLAllocator >::Allocator> 00152 #define CEGUI_MAP_ALLOC(K, V) , ::CEGUI::STLAllocatorWrapper<std::pair<K, V>, ::CEGUI::AllocatorConfig< ::CEGUI::STLAllocator >::Allocator> 00153 #define CEGUI_MULTIMAP_ALLOC(K, V) , ::CEGUI::STLAllocatorWrapper<std::pair<K, V>, ::CEGUI::AllocatorConfig< ::CEGUI::STLAllocator >::Allocator> 00154 00155 #else 00156 00157 // STL allocator helper macros 00158 #define CEGUI_VECTOR_ALLOC(T) 00159 #define CEGUI_SET_ALLOC(T) 00160 #define CEGUI_MAP_ALLOC(K, V) 00161 #define CEGUI_MULTIMAP_ALLOC(K, V) 00162 00163 #endif 00164 00165 } 00166 00167 #endif // end of guard _CEGUIMemorySTLWrapper_h_