1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
#include <map>
#include <iostream>
#include <iterator>
using namespace std;
class Figure
{
public:
// static bool val;
//static Figure* Create();
virtual void SeDessiner(void)=0;
};
//bool Figure::val = false;
class Cercle : public Figure {
public:
static bool val;
virtual void SeDessiner(){cout<<"Je suis un cercle"<<endl;}
static Figure* Create(){
return new Cercle();
}
};
class Carre : public Figure {
public:
static bool val;
virtual void SeDessiner(){cout<<"Je suis carre"<<endl;}
static Figure* Create(){
return new Carre();
}
};
template<typename Key,typename Object> class Factory
{
private:
typedef Object* (*Creator)();
static Factory<Key,Object>* m_fact;
map<Key, Creator> m_list;
Factory(){}
~Factory(){}
public:
static Factory* GetInstance()
{
if(m_fact==NULL)
{
m_fact = new Factory;
}
return m_fact;
}
static void Kill()
{
if(m_fact!=NULL)
{
delete m_fact;
}
}
bool Register(Key key,Creator creator)
{
bool ret=true;
if(m_list.find(key)!=m_list.end())
{
ret=false;
}
else
{
m_list[key]=creator;
}
return ret;
}
Object* create(Key key)
{
Object *obj=NULL;
Creator crt;
std::map<Key, Creator>::iterator it; //ca casse ici
it=m_list.find(key);
if(it!=m_list.end())
{
crt=(*it).second;
obj=crt();
}
return obj;
}
};
template<typename Key,typename Object> Factory<Key,Object>* Factory<Key,Object>::m_fact=NULL;
bool Carre::val= Factory<string,Figure>::GetInstance()->Register("Carre",Carre::Create);
bool Cercle::val=Factory<string,Figure>::GetInstance()->Register("Cercle",Cercle::Create);
int main(void)
{
Figure *c=Factory<string,Figure>::GetInstance()->create("Cercle");
Figure *ca=Factory<string,Figure>::GetInstance()->create("Carre");
c->SeDessiner();
ca->SeDessiner();
delete c;
delete ca;
return 0;
} |
