callback_v4.h
1 /*
2 ** ClanLib SDK
3 ** Copyright (c) 1997-2013 The ClanLib Team
4 **
5 ** This software is provided 'as-is', without any express or implied
6 ** warranty. In no event will the authors be held liable for any damages
7 ** arising from the use of this software.
8 **
9 ** Permission is granted to anyone to use this software for any purpose,
10 ** including commercial applications, and to alter it and redistribute it
11 ** freely, subject to the following restrictions:
12 **
13 ** 1. The origin of this software must not be misrepresented; you must not
14 ** claim that you wrote the original software. If you use this software
15 ** in a product, an acknowledgment in the product documentation would be
16 ** appreciated but is not required.
17 ** 2. Altered source versions must be plainly marked as such, and must not be
18 ** misrepresented as being the original software.
19 ** 3. This notice may not be removed or altered from any source distribution.
20 **
21 ** Note: Some of the libraries ClanLib may link to may have additional
22 ** requirements or restrictions.
23 **
24 ** File Author(s):
25 **
26 ** Magnus Norddahl
27 */
28 
29 
30 #pragma once
31 
32 #include "../System/exception.h"
33 #include <memory>
34 
35 namespace clan
36 {
39 
41 template <typename P1, typename P2, typename P3, typename P4>
43 {
44 public:
46  {
47  }
48 
49  virtual void invoke(P1 p1, P2 p2, P3 p3, P4 p4) const = 0;
50 };
51 
53 template <typename P1, typename P2, typename P3, typename P4>
54 class Callback_Impl_v4_static : public Callback_Impl_v4<P1, P2, P3, P4>
55 {
56 public:
57  Callback_Impl_v4_static(void (*static_func)(P1, P2, P3, P4))
59  {
60  }
61 
62  void invoke(P1 p1, P2 p2, P3 p3, P4 p4) const
63  {
64  static_func(p1, p2, p3, p4);
65  }
66 
67  void (*static_func)(P1, P2, P3, P4);
68 };
69 
71 template <typename P1, typename P2, typename P3, typename P4, typename UserData>
72 class Callback_Impl_v4_static_user : public Callback_Impl_v4<P1, P2, P3, P4>
73 {
74 public:
76  void (*static_func)(P1, P2, P3, P4, UserData), const UserData &user_data)
77  : static_func(static_func), user_data(user_data)
78  {
79  }
80 
81  void invoke(P1 p1, P2 p2, P3 p3, P4 p4) const
82  {
83  static_func(p1, p2, p3, p4, user_data);
84  }
85 
86  void (*static_func)(P1, P2, P3, P4, UserData);
87 
89 };
90 
92 template <typename P1, typename P2, typename P3, typename P4, typename InstanceClass>
93 class Callback_Impl_v4_member : public Callback_Impl_v4<P1, P2, P3, P4>
94 {
95 public:
97  void (InstanceClass::*member_func)(P1, P2, P3, P4))
98  : instance(instance), member_func(member_func)
99  {
100  }
101 
102  void invoke(P1 p1, P2 p2, P3 p3, P4 p4) const
103  {
104  (instance->*member_func)(p1, p2, p3, p4);
105  }
106 
107  InstanceClass *instance;
108 
109  void (InstanceClass::*member_func)(P1, P2, P3, P4);
110 };
111 
113 template <typename P1, typename P2, typename P3, typename P4, typename InstanceClass, typename UserData>
114 class Callback_Impl_v4_member_user : public Callback_Impl_v4<P1, P2, P3, P4>
115 {
116 public:
117  Callback_Impl_v4_member_user(InstanceClass *instance,
118  void (InstanceClass::*member_func)(P1, P2, P3, P4, UserData), const UserData &user_data)
119  : instance(instance), member_func(member_func), user_data(user_data)
120  {
121  }
122 
123  void invoke(P1 p1, P2 p2, P3 p3, P4 p4) const
124  {
125  (instance->*member_func)(p1, p2, p3, p4, user_data);
126  }
127 
128  InstanceClass *instance;
129 
130  void (InstanceClass::*member_func)(P1, P2, P3, P4, UserData);
131 
133 };
134 
136 template <class P1, class P2, class P3, class P4, class Functor>
137 class Callback_Impl_v4_functor : public Callback_Impl_v4<P1, P2, P3, P4>
138 {
139 public:
141  : functor(functor)
142  {
143  }
144 
145  void invoke(P1 p1, P2 p2, P3 p3, P4 p4) const
146  {
147  functor(p1, p2, p3, p4);
148  }
149 
150  Functor functor;
151 };
152 
155 template <typename P1, typename P2, typename P3, typename P4>
157 {
158 public:
160  {
161  }
162 
164  : impl(copy.impl)
165  {
166  }
167 
169  : impl(impl)
170  {
171  }
172 
173  Callback_v4(void (*function)(P1, P2, P3, P4))
174  : impl(new Callback_Impl_v4_static<P1, P2, P3, P4>(function))
175  {
176  }
177 
178  template<typename UserData>
179  Callback_v4(void (*function)(P1, P2, P3, P4, UserData), const UserData &user_data)
180  : impl(new Callback_Impl_v4_static_user<P1, P2, P3, P4, UserData>(function, user_data))
181  {
182  }
183 
184  template<class InstanceClass>
185  Callback_v4(InstanceClass *instance, void (InstanceClass::*function)(P1, P2, P3, P4))
186  : impl(new Callback_Impl_v4_member<P1, P2, P3, P4, InstanceClass>(instance, function))
187  {
188  }
189 
190  template<class InstanceClass, typename UserData>
191  Callback_v4(InstanceClass *instance, void (InstanceClass::*function)(P1, P2, P3, P4, UserData), const UserData &user_data)
192  : impl(new Callback_Impl_v4_member_user<P1, P2, P3, P4, InstanceClass, UserData>(instance, function, user_data))
193  {
194  }
195 
196  void set(void (*function)(P1, P2, P3, P4))
197  {
198  impl = std::shared_ptr< Callback_Impl_v4<P1, P2, P3, P4> >(new Callback_Impl_v4_static<P1, P2, P3, P4>(function));
199  }
200 
201  template<typename UserData>
202  void set(void (*function)(P1, P2, P3, P4, UserData), const UserData &user_data)
203  {
204  impl = std::shared_ptr< Callback_Impl_v4<P1, P2, P3, P4> >(new Callback_Impl_v4_static_user<P1, P2, P3, P4, UserData>(function, user_data));
205  }
206 
207  template<class InstanceClass>
208  void set(InstanceClass *instance, void (InstanceClass::*function)(P1, P2, P3, P4))
209  {
210  impl = std::shared_ptr< Callback_Impl_v4<P1, P2, P3, P4> >(new Callback_Impl_v4_member<P1, P2, P3, P4, InstanceClass>(instance, function));
211  }
212 
213  template<class InstanceClass, typename UserData>
214  void set(InstanceClass *instance, void (InstanceClass::*function)(P1, P2, P3, P4, UserData), const UserData &user_data)
215  {
216  impl = std::shared_ptr< Callback_Impl_v4<P1, P2, P3, P4> >(new Callback_Impl_v4_member_user<P1, P2, P3, P4, InstanceClass, UserData>(instance, function, user_data));
217  }
218 
219  void clear()
220  {
221  impl = std::shared_ptr< Callback_Impl_v4<P1, P2, P3, P4> >();
222  }
223 
224  void invoke(P1 p1, P2 p2, P3 p3, P4 p4) const
225  {
226  impl->invoke(p1, p2, p3, p4);
227  }
228 
229  bool is_null() const
230  {
231  return !impl;
232  }
233 
234 private:
235  std::shared_ptr< Callback_Impl_v4<P1, P2, P3, P4> > impl;
236 };
237 
240 template <typename P1, typename P2, typename P3, typename P4>
241 class Callback_v4_functor : public Callback_v4<P1, P2, P3, P4>
242 {
243 public:
245  {
246  }
247 
249  : Callback_v4<P1, P2, P3, P4>(copy)
250  {
251  }
252 
253  template<class Functor>
254  Callback_v4_functor(Functor functor)
255  : Callback_v4<P1, P2, P3, P4>(new Callback_Impl_v4_functor<P1, P2, P3, P4, Functor>(functor))
256  {
257  }
258 
259 };
260 
261 }
262 
Callback_Impl_v4_functor(Functor functor)
Definition: callback_v4.h:140
void clear()
Definition: callback_v4.h:219
void(InstanceClass::* member_func)(P1, P2, P3, P4)
Definition: callback_v4.h:109
InstanceClass * instance
Definition: callback_v4.h:107
Callback_v4_functor()
Definition: callback_v4.h:244
(Internal ClanLib Class)
Definition: callback_v4.h:114
void(InstanceClass::* member_func)(P1, P2, P3, P4, UserData)
Definition: callback_v4.h:130
Callback_Impl_v4_member_user(InstanceClass *instance, void(InstanceClass::*member_func)(P1, P2, P3, P4, UserData), const UserData &user_data)
Definition: callback_v4.h:117
InstanceClass * instance
Definition: callback_v4.h:128
void set(InstanceClass *instance, void(InstanceClass::*function)(P1, P2, P3, P4, UserData), const UserData &user_data)
Definition: callback_v4.h:214
void invoke(P1 p1, P2 p2, P3 p3, P4 p4) const
Definition: callback_v4.h:62
Callback_v4(InstanceClass *instance, void(InstanceClass::*function)(P1, P2, P3, P4, UserData), const UserData &user_data)
Definition: callback_v4.h:191
Callback_Impl_v4_static_user(void(*static_func)(P1, P2, P3, P4, UserData), const UserData &user_data)
Definition: callback_v4.h:75
Functor functor
Definition: callback_v4.h:150
void invoke(P1 p1, P2 p2, P3 p3, P4 p4) const
Definition: callback_v4.h:145
virtual void invoke(P1 p1, P2 p2, P3 p3, P4 p4) const =0
(Internal ClanLib Class)
Definition: callback_v4.h:42
Callback_v4_functor(Functor functor)
Definition: callback_v4.h:254
Definition: userdata.h:47
UserData user_data
Definition: callback_v4.h:88
Callback_v4_functor.
Definition: callback_v4.h:241
void invoke(P1 p1, P2 p2, P3 p3, P4 p4) const
Definition: callback_v4.h:224
Callback_v4(InstanceClass *instance, void(InstanceClass::*function)(P1, P2, P3, P4))
Definition: callback_v4.h:185
Callback_Impl_v4_member(InstanceClass *instance, void(InstanceClass::*member_func)(P1, P2, P3, P4))
Definition: callback_v4.h:96
void invoke(P1 p1, P2 p2, P3 p3, P4 p4) const
Definition: callback_v4.h:81
bool is_null() const
Definition: callback_v4.h:229
Callback_v4.
Definition: callback_v4.h:156
(Internal ClanLib Class)
Definition: callback_v4.h:54
Callback_v4(void(*function)(P1, P2, P3, P4))
Definition: callback_v4.h:173
void set(void(*function)(P1, P2, P3, P4, UserData), const UserData &user_data)
Definition: callback_v4.h:202
UserData user_data
Definition: callback_v4.h:132
Callback_v4(void(*function)(P1, P2, P3, P4, UserData), const UserData &user_data)
Definition: callback_v4.h:179
void set(void(*function)(P1, P2, P3, P4))
Definition: callback_v4.h:196
Callback_v4()
Definition: callback_v4.h:159
Callback_Impl_v4_static(void(*static_func)(P1, P2, P3, P4))
Definition: callback_v4.h:57
Callback_v4(const Callback_v4 &copy)
Definition: callback_v4.h:163
void(* static_func)(P1, P2, P3, P4)
Definition: callback_v4.h:67
virtual ~Callback_Impl_v4()
Definition: callback_v4.h:45
(Internal ClanLib Class)
Definition: callback_v4.h:72
Callback_v4_functor(const Callback_v4_functor &copy)
Definition: callback_v4.h:248
void invoke(P1 p1, P2 p2, P3 p3, P4 p4) const
Definition: callback_v4.h:123
Callback_v4(Callback_Impl_v4< P1, P2, P3, P4 > *impl)
Definition: callback_v4.h:168
void invoke(P1 p1, P2 p2, P3 p3, P4 p4) const
Definition: callback_v4.h:102
void set(InstanceClass *instance, void(InstanceClass::*function)(P1, P2, P3, P4))
Definition: callback_v4.h:208
void(* static_func)(P1, P2, P3, P4, UserData)
Definition: callback_v4.h:86
(Internal ClanLib Class)
Definition: callback_v4.h:137
(Internal ClanLib Class)
Definition: callback_v4.h:93