managers.hpp
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00001 
00008 /*****************************************************************************
00009 ** Ifdefs
00010 *****************************************************************************/
00011 
00012 #ifndef ECL_SIGSLOTS_LITE_MANAGERS_HPP_
00013 #define ECL_SIGSLOTS_LITE_MANAGERS_HPP_
00014 
00015 /*****************************************************************************
00016 ** Includes
00017 *****************************************************************************/
00018 
00019 #include "slot.hpp"
00020 
00021 /*****************************************************************************
00022 ** Namespaces
00023 *****************************************************************************/
00024 
00025 namespace ecl {
00026 namespace lite {
00027 
00028 /*****************************************************************************
00029 ** Forward Declarations
00030 *****************************************************************************/
00031 
00032 template <typename Data, unsigned int Capacity> class Signal;
00033 
00034 /*****************************************************************************
00035 ** Managers
00036 *****************************************************************************/
00037 
00038 namespace sigslots {
00042 template <typename Data, typename FunctionClass>
00043 class MemberSlotsBase {
00044 public:
00045         virtual unsigned int stored() const { return 0; }
00046         virtual unsigned int capacity() const { return 0; }
00047         virtual sigslots::MemberSlot<Data,FunctionClass>* addSlot(void (FunctionClass::*func)(Data), FunctionClass &instance) = 0;
00048 };
00049 
00053 template <typename FunctionClass>
00054 class MemberSlotsBase<void,FunctionClass> {
00055 public:
00056         virtual unsigned int stored() const { return 0; }
00057         virtual unsigned int capacity() const { return 0; }
00058         virtual sigslots::MemberSlot<void,FunctionClass>* addSlot(void (FunctionClass::*func)(), FunctionClass &instance) = 0;
00059 };
00060 
00061 } // namespace sigslots
00062 
00063 /******************************************
00064 ** Member Manager
00065 *******************************************/
00090 template <typename Data, typename FunctionClass, unsigned int Capacity = 1>
00091 class MemberSlots : public sigslots::MemberSlotsBase<Data,FunctionClass> {
00092 public:
00093         /*********************
00094         ** Friends
00095         **********************/
00096         // allow connect to use addSlot
00097         template <typename Data_, unsigned int Capacity_, typename FunctionClass_>
00098         friend sigslots::Error connect(Signal<Data_,Capacity_> &signal, void(FunctionClass_::*f)(Data_), FunctionClass_ &o);
00099 
00100         // needs access to stored()
00101         template <typename Data_, typename FunctionClass_>
00102         friend unsigned int member_slots_stored(const FunctionClass_ &object);
00103 
00104         // needs access to capacity()
00105         template <typename Data_, typename FunctionClass_>
00106         friend unsigned int member_slots_capacity(const FunctionClass_ &object);
00107 
00108 
00109 protected:
00110         MemberSlots() : size(0) {};
00111 
00112 private:
00118         unsigned int stored() const { return size; }
00124         unsigned int capacity() const { return Capacity; }
00125 
00135         sigslots::MemberSlot<Data,FunctionClass>* addSlot(void (FunctionClass::*func)(Data), FunctionClass &instance) {
00136                 for ( unsigned int i = 0; i < size; ++i ) {
00137                         if ( func == slots[i].member_function ) {
00138                                 return &(slots[i]);
00139                         }
00140                 }
00141                 if ( size < Capacity ) {
00142                         slots[size] = sigslots::MemberSlot<Data,FunctionClass>(func,instance);
00143                         ++size;
00144                         return &(slots[size-1]);
00145                 } else {
00146                         return NULL;
00147                 }
00148         }
00149 
00150         unsigned int size;
00151         sigslots::MemberSlot<Data,FunctionClass> slots[Capacity];
00152 };
00153 
00154 /******************************************
00155 ** Global Manager
00156 *******************************************/
00157 
00190 template <typename Data, typename Dummy = int>
00191 class GlobalSlots {
00192 public:
00193         static const unsigned int capacity;
00195         /*********************
00196         ** Friends
00197         **********************/
00198         // needs access to addSlot()
00199         template <typename Data_, unsigned int Capacity_>
00200         friend sigslots::Error connect(Signal<Data_, Capacity_> &signal, void (*function)(Data_));
00201 
00202         // needs access to stored()
00203         template <typename Data_>
00204         friend unsigned int global_slots_stored();
00205 
00206 private:
00218         static unsigned int stored(const bool increment = false) {
00219                 static unsigned int stored_slots = 0;
00220                 if ( increment ) { ++stored_slots; }
00221                 return stored_slots;
00222         }
00231         static sigslots::GlobalSlot<Data>* addSlot(void (*func)(Data)) {
00232                 unsigned int size = stored();
00233                 static sigslots::GlobalSlot<Data> slots[capacity];
00234                 for ( unsigned int i = 0; i < size; ++i ) {
00235                         if ( func == slots[i].global_function ) {
00236                                 return &(slots[i]);
00237                         }
00238                 }
00239                 if ( size < capacity ) {
00240                         slots[size] = sigslots::GlobalSlot<Data>(func);
00241                         bool inc = true;
00242                         stored(inc); // increment the number of stored slots variable
00243                         return &(slots[size]);
00244                 } else {
00245                         return NULL;
00246                 }
00247         }
00248 };
00249 
00250 /*****************************************************************************
00251 ** Specialisations
00252 *****************************************************************************/
00256 template <typename FunctionClass, unsigned int Capacity>
00257 class MemberSlots<void, FunctionClass, Capacity> : public sigslots::MemberSlotsBase<void,FunctionClass> {
00258 public:
00259         /*********************
00260         ** Friends
00261         **********************/
00262         // allow connect to use addSlot
00263         template <unsigned int Capacity_, typename FunctionClass_>
00264         friend sigslots::Error connect(Signal<void,Capacity_> &signal, void(FunctionClass_::*f)(void), FunctionClass_ &o);
00265         // needs access to stored()
00266         template <typename Data_, typename FunctionClass_>
00267         friend unsigned int member_slots_stored(const FunctionClass_ &object);
00268 
00269         // needs access to capacity()
00270         template <typename Data_, typename FunctionClass_>
00271         friend unsigned int member_slots_capacity(const FunctionClass_ &object);
00272 
00273 protected:
00274         MemberSlots() : size(0) {};
00275 
00276 private:
00282         unsigned int stored() const { return size; }
00283 
00289         unsigned int capacity() const { return Capacity; }
00290 
00300         sigslots::MemberSlot<void,FunctionClass>* addSlot(void (FunctionClass::*func)(void), FunctionClass &instance) {
00301                 for ( unsigned int i = 0; i < size; ++i ) {
00302                         if ( func == slots[i].member_function ) {
00303                                 return &(slots[i]);
00304                         }
00305                 }
00306                 if ( size < Capacity ) {
00307                         slots[size] = sigslots::MemberSlot<void,FunctionClass>(func,instance);
00308                         ++size;
00309                         return &(slots[size-1]);
00310                 } else {
00311                         return NULL;
00312                 }
00313         }
00314 
00315         unsigned int size;
00316         sigslots::MemberSlot<void,FunctionClass> slots[Capacity];
00317 };
00318 
00324 template <typename Dummy>
00325 class GlobalSlots<void, Dummy> {
00326 public:
00327         static const unsigned int capacity; 
00330         /*********************
00331         ** Friends
00332         **********************/
00333         // needs access to addSlot()
00334         template <unsigned int Capacity_>
00335         friend sigslots::Error connect(Signal<void,Capacity_> &signal, void (*function)(void));
00336 
00337         // needs access to stored()
00338         template <typename Data> friend unsigned int global_slots_stored();
00339 
00340 private:
00352         static unsigned int stored(const bool increment = false) {
00353                 static unsigned int stored_slots = 0;
00354                 if ( increment ) { ++stored_slots; }
00355                 return stored_slots;
00356         }
00357 
00366         static sigslots::GlobalSlot<void>* addSlot(void (*func)(void)) {
00367                 unsigned int size = stored();
00368                 static sigslots::GlobalSlot<void> slots[capacity];
00369                 for ( unsigned int i = 0; i < size; ++i ) {
00370                         if ( func == slots[i].global_function ) {
00371                                 return &(slots[i]);
00372                         }
00373                 }
00374                 if ( size < capacity ) {
00375                         slots[size] = sigslots::GlobalSlot<void>(func);
00376                         bool inc = true;
00377                         stored(inc); // increment the number of stored slots variable
00378                         return &(slots[size]);
00379                 } else {
00380                         return NULL;
00381                 }
00382         }
00383 };
00384 
00385 
00386 } // namespace lite
00387 } // namespace ecl
00388 
00389 #endif /* ECL_SIGSLOTS_LITE_MANAGERS_HPP_ */


ecl_sigslots_lite
Author(s): Daniel Stonier
autogenerated on Thu Jun 6 2019 18:53:25