ZFactroy的源代码

用一个宏支持动态创建，创建时候支持参数的传递，例子看前文。 可能Zfactory.h底部的#include看起来不顺眼，不过没有办法，似乎只有这样才能 在vc,bcb,gcc下面都通过编译。。。。 －－－－－－－－－－－－－－－－－ZFactory.h－－－－－－－－－－－－－－－－－－－－－ #ifndef ZFACTORY_H #define ZFACTORY_H #include <string> #include <iostream> using std::cout; using std::endl; using std::string;   typedef void* (*CreateFunArg0)(); typedef void*   (*CreateFunArg1)(void*); typedef void*   (*CreateFunArg2)(void*,void*); typedef void*   (*CreateFunArg3)(void*,void*,void*); class RegisterInfo; class RegisterInfoArg0; class RegisterInfoArg1; class RegisterInfoArg2; class RegisterInfoArg3;   #define RegisterClass(id,classname)/  static classname* Create##classname(){ /  return new classname; / }/ RegisterInfoArg0 mRegisterInfo##classname( #classname,(CreateFunArg0)Create##classname,id); / #define RegisterClassArg1(id,classname,type1)/ static classname* CreateArg1##classname(type1 arg1){ /  return new classname(arg1); / }/ static classname* CreateShadowArg1##classname(void* arg1){ /  return CreateArg1##classname( *((type1*)arg1) ); / }/ RegisterInfoArg1 mRegisterInfoArg1##classname(#classname,(CreateFunArg1)CreateShadowArg1##classname,id); / #define RegisterClassArg2(id,classname,type1,type2)/ static classname* CreateArg2##classname(type1 arg1, type2 arg2){ /  return new classname(arg1,arg2); / }/ static classname* CreateShadowArg2##classname(void* arg1, void* arg2){ /  return CreateArg2##classname( *((type1*)arg1),*((type2*)arg2) ); / }/ RegisterInfoArg2 mRegisterInfoArg2##classname(#classname,(CreateFunArg2)CreateShadowArg2##classname,id); / #define RegisterClassArg3(id,classname,type1,type2,type3)/ static classname* CreateArg3##classname(type1 arg1, type2 arg2,type3 arg3){ /  return new classname(arg1,arg2,arg3); / }/ static classname* CreateShadowArg3##classname(void* arg1, void* arg2,void* arg3){ /  return CreateArg3##classname( *((type1*)arg1),*((type2*)arg2),*((type3*)arg3)); / }/ RegisterInfoArg3 mRegisterInfoArg3##classname(#classname,(CreateFunArg3)CreateShadowArg3##classname,id); /   class ZFactory { public:    static ZFactory* GetInstance();   void* ZFactory::CreateClass(int classId);    template<class TYPE>  void* CreateClass(int classId,TYPE arg1)  {   RegisterInfo* tmp = RegArg1Header->Find(classId);    if(tmp==0) return 0;   else    return (((RegisterInfoArg1*)tmp)->Creator)((void*)&arg1);  };  template<class TYPE1, class TYPE2>  void* CreateClass(int classId,TYPE1 arg1,TYPE2 arg2)  {   RegisterInfo* tmp  = RegArg2Header->Find(classId);    if(tmp==0) return 0;   else    return (((RegisterInfoArg2*)tmp)->Creator)((void*)&arg1,(void*)&arg2);   };  template<class TYPE1, class TYPE2,class TYPE3>  void* CreateClass(int classId,TYPE1 arg1,TYPE2 arg2,TYPE3 arg3)  {   RegisterInfo* tmp  = RegArg3Header->Find(classId);    if(tmp==0) return 0;   else    return (((RegisterInfoArg3*)tmp)->Creator)((void*)&arg1,(void*)&arg2,(void*)&arg3);   };  ~ZFactory() {   ClearList(RegArg0Header);   ClearList(RegArg1Header);   ClearList(RegArg2Header);   ClearList(RegArg3Header);  } private:  ZFactory()  {   RegArg0Header = 0;   RegArg1Header = 0;   RegArg2Header = 0;   RegArg3Header = 0;  };  void ClearList(RegisterInfo* header);    static ZFactory* mInstance;  RegisterInfo * RegArg0Header;  RegisterInfo * RegArg1Header;  RegisterInfo * RegArg2Header;  RegisterInfo * RegArg3Header;    friend class RegisterInfo;  friend class RegisterInfoArg0;  friend class RegisterInfoArg1;  friend class RegisterInfoArg2;  friend class RegisterInfoArg3; }; #include "Register.h" #endif

//－－－－－－－－－－－－－ZFactory.cpp－－－－－－－－－－－－－－－－－－－－－－－
#include "ZFactory.h"

ZFactory* ZFactory::mInstance = 0;
void* ZFactory::CreateClass(int classId)
{
 RegisterInfo* tmp = RegArg0Header->Find(classId); 
 if(tmp==0)
  return 0;
 else
  return (((RegisterInfoArg0*)tmp)->Creator)();
}

ZFactory* ZFactory::GetInstance()
{
 if(mInstance == 0)
 {
  mInstance = new ZFactory;
  mInstance->RegArg0Header = new RegisterInfo(); 
  mInstance->RegArg1Header = new RegisterInfo();
  mInstance->RegArg2Header = new RegisterInfo();
  mInstance->RegArg3Header = new RegisterInfo();
 }
 return mInstance;
}

void ClearList(RegisterInfo* header)
{
 RegisterInfo* tmp = header;
 while(tmp)
 {
  tmp = tmp->Next;
  delete tmp;
 }
}
 
//－－－－－－－－－－－－－－－ZRegister.h－－－－－－－－－－－－－－－－－－－－－
#ifndef REGISTER_H
#define REGISTER_H
#include "ZFactory.h"
class RegisterInfo
{
public:
 RegisterInfo()
  :Name("Header"),Identify(0),Next(0)
 {};
 RegisterInfo* Find(int classId)
 {
  RegisterInfo* tmp = this;
  while(classId != tmp->Identify)  
   tmp = tmp->Next;
  return tmp;
 }
 RegisterInfo* Tail()
 {
  RegisterInfo* tmp = this;    
  while(tmp->Next)   
   tmp=tmp->Next;   
  return tmp;
 }
 string     Name;
 int    Identify; 
 RegisterInfo* Next;
protected:
 void Init(string n,int i,RegisterInfo* header)
 {
  Name = n;
  Identify=i;
  Next=0;
  header->Tail()->Next = this;   
 }
 
 
};
class RegisterInfoArg0:public RegisterInfo
{
public:
 RegisterInfoArg0():RegisterInfo(){};
 RegisterInfoArg0::RegisterInfoArg0(string n,CreateFunArg0 c,int i)
 :Creator(c)
 { 
  Init(n,i,ZFactory::GetInstance()->RegArg0Header);
  
 }
 CreateFunArg0 Creator;
};
class RegisterInfoArg1:public RegisterInfo
{
public:
 RegisterInfoArg1():RegisterInfo(){};
 RegisterInfoArg1::RegisterInfoArg1(string n,CreateFunArg1 c,int i)
 :Creator(c)
 {  
  Init(n,i,ZFactory::GetInstance()->RegArg1Header); 
 }
 CreateFunArg1 Creator;
};

class RegisterInfoArg2:public RegisterInfo
{
public:
 RegisterInfoArg2():RegisterInfo(){};
 RegisterInfoArg2::RegisterInfoArg2(string n,CreateFunArg2 c,int i)
 :Creator(c)
 {  
  Init(n,i,ZFactory::GetInstance()->RegArg2Header);   
 }
 CreateFunArg2 Creator;
};
class RegisterInfoArg3:public RegisterInfo
{
public:
 RegisterInfoArg3():RegisterInfo(){};
 RegisterInfoArg3::RegisterInfoArg3(string n,CreateFunArg3 c,int i)
 :Creator(c)
 {  
  Init(n,i,ZFactory::GetInstance()->RegArg3Header);   
 }
 CreateFunArg3 Creator;
};
#endif