Image Component Library (ICL)
|
00001 /******************************************************************** 00002 ** Image Component Library (ICL) ** 00003 ** ** 00004 ** Copyright (C) 2006-2013 CITEC, University of Bielefeld ** 00005 ** Neuroinformatics Group ** 00006 ** Website: www.iclcv.org and ** 00007 ** http://opensource.cit-ec.de/projects/icl ** 00008 ** ** 00009 ** File : ICLQt/src/ICLQt/DataStore.h ** 00010 ** Module : ICLQt ** 00011 ** Authors: Christof Elbrechter ** 00012 ** ** 00013 ** ** 00014 ** GNU LESSER GENERAL PUBLIC LICENSE ** 00015 ** This file may be used under the terms of the GNU Lesser General ** 00016 ** Public License version 3.0 as published by the ** 00017 ** ** 00018 ** Free Software Foundation and appearing in the file LICENSE.GPL ** 00019 ** included in the packaging of this file. Please review the ** 00020 ** following information to ensure the license requirements will ** 00021 ** be met: http://www.gnu.org/licenses/lgpl-3.0.txt ** 00022 ** ** 00023 ** The development of this software was supported by the ** 00024 ** Excellence Cluster EXC 277 Cognitive Interaction Technology. ** 00025 ** The Excellence Cluster EXC 277 is a grant of the Deutsche ** 00026 ** Forschungsgemeinschaft (DFG) in the context of the German ** 00027 ** Excellence Initiative. ** 00028 ** ** 00029 ********************************************************************/ 00030 00031 #pragma once 00032 00033 #include <ICLUtils/MultiTypeMap.h> 00034 #include <ICLUtils/Exception.h> 00035 #include <ICLUtils/Function.h> 00036 #include <ICLUtils/StringUtils.h> 00037 #include <ICLQt/MouseEvent.h> 00038 00039 namespace icl{ 00040 namespace qt{ 00041 00042 00044 00046 class DataStore : public utils::MultiTypeMap{ 00047 public: 00048 00050 struct KeyNotFoundException : public utils::ICLException{ 00051 KeyNotFoundException(const std::string &key):utils::ICLException("Key not found: " + key){} 00052 }; 00053 00055 struct UnassignableTypesException : public utils::ICLException{ 00056 UnassignableTypesException(const std::string &tSrc, const std::string &tDst): 00057 utils::ICLException("Unable to assign "+ tDst+ " = "+ tSrc){} 00058 }; 00059 00060 00062 class Data{ 00063 00065 DataArray *data; 00066 00068 inline Data(DataArray *data):data(data){} 00069 00071 static void assign(void *src, const std::string &srcType, void *dst, 00072 const std::string &dstType) throw (UnassignableTypesException); 00073 00074 public: 00075 00077 struct Event{ 00078 Event(const std::string &msg="", void *data=0):message(msg),data(data){} 00079 Event(const std::string &msg, const utils::Function<void> &cb): message(msg),data(0),cb(cb){} 00080 Event(const std::string &msg, const utils::Function<void,const std::string&> &cb2): message(msg),data(0),cb2(cb2){} 00081 std::string message; 00082 void *data; 00083 utils::Function<void> cb; 00084 utils::Function<void,const std::string&> cb2; 00085 }; 00086 00087 friend class DataStore; 00088 00090 00091 template<class T> 00092 inline void operator=(const T &t) throw (UnassignableTypesException){ 00093 assign(const_cast<void*>(reinterpret_cast<const void*>(&t)), 00094 get_type_name<T>(),data->data,data->type); 00095 } 00096 00098 00100 template<class T> 00101 inline T as() const throw (UnassignableTypesException){ 00102 T t; 00103 assign(data->data,data->type,&t,get_type_name<T>()); 00104 return t; 00105 } 00106 00108 template<class T> 00109 operator T() const throw (UnassignableTypesException){ 00110 return as<T>(); 00111 } 00112 00114 const std::string &getTypeID() const { return data->type; } 00115 00116 00118 void render() throw (UnassignableTypesException){ 00119 *this = Event("render"); 00120 } 00121 00123 void link(void *data) throw (UnassignableTypesException){ 00124 *this = Event("link", data); 00125 } 00126 00128 void install(void *data){ 00129 *this = Event("install",data); 00130 } 00131 00133 void install(utils::Function<void,const MouseEvent &> f); 00134 00135 // installs a global function (should be implicit) 00136 //void install(void (*f)(const MouseEvent &)){ 00137 // install(function(f)); 00138 //} 00139 00141 void registerCallback(const utils::Function<void> &cb){ 00142 *this = Event("register",cb); 00143 } 00144 00146 void registerCallback(const utils::Function<void,const std::string&> &cb){ 00147 *this = Event("register-complex",cb); 00148 } 00149 00151 void enable(){ 00152 *this = Event("enable"); 00153 } 00154 00156 void disable(){ 00157 *this = Event("disable"); 00158 } 00159 }; 00160 00161 00163 00202 Data operator[](const std::string &key) throw (KeyNotFoundException); 00203 00204 00206 00208 template<class T> 00209 std::vector<T> collect(const std::vector<std::string> &keys){ 00210 std::vector<T> v(keys.size()); 00211 for(unsigned int i=0;i<keys.size();++i) v[i] = operator[](keys[i]); 00212 return v; 00213 } 00214 00216 static void list_possible_assignments(const std::string &srcType, const std::string &dstType); 00217 00219 struct Assign{ 00220 std::string srcType,dstType,srcRTTI,dstRTTI; 00221 Assign(const std::string &srcType, const std::string &dstType, 00222 const std::string &srcRTTI, const std::string &dstRTTI): 00223 srcType(srcType),dstType(dstType),srcRTTI(srcRTTI),dstRTTI(dstRTTI){} 00224 00225 virtual bool operator()(void *src, void *dst){ return false; } 00226 }; 00227 00228 00229 private: 00230 00232 static void register_assignment_rule(Assign *assign); 00233 00234 public: 00235 00237 00239 template<class SRC, class DST> 00240 static inline void register_assignment_rule(const std::string &srcTypeName, 00241 const std::string &dstTypeName, 00242 utils::Function<void,const SRC&,DST&> assign){ 00243 struct TypeDependentAssign : public Assign{ 00244 utils::Function<void,const SRC&,DST&> assign; 00245 TypeDependentAssign(const std::string &srcTypeName, const std::string &dstTypeName, 00246 utils::Function<void,const SRC&,DST&> assign): 00247 Assign(srcTypeName, dstType, get_type_name<SRC>(), get_type_name<DST>()),assign(assign){} 00248 00249 virtual bool operator()(void *src, void *dst){ 00250 assign( *(const SRC*)src, *(DST*)dst ); 00251 return true; 00252 } 00253 }; 00254 register_assignment_rule(new TypeDependentAssign(srcTypeName,dstTypeName,assign)); 00255 } 00256 00258 00260 template<class SRC, class DST> 00261 static inline void register_trivial_assignment_rule(const std::string &srcTypeName, 00262 const std::string &dstTypeName){ 00263 struct TypeDependentTrivialAssign : public Assign{ 00264 TypeDependentTrivialAssign(const std::string &srcTypeName, const std::string &dstTypeName): 00265 Assign(srcTypeName, dstTypeName, get_type_name<SRC>(), get_type_name<DST>()){} 00266 00267 virtual bool operator()(void *src, void *dst){ 00268 *(DST*)dst = *(const SRC*)src; 00269 return true; 00270 } 00271 }; 00272 register_assignment_rule(new TypeDependentTrivialAssign(srcTypeName,dstTypeName)); 00273 } 00274 00275 }; 00276 } // namespace qt 00277 } 00278 00279