source: cpp/frams/util/callbacks.h @ 367

Last change on this file since 367 was 286, checked in by Maciej Komosinski, 9 years ago

Updated headers

  • Property svn:eol-style set to native
File size: 3.7 KB
Line 
1// This file is a part of Framsticks SDK.  http://www.framsticks.com/
2// Copyright (C) 1999-2015  Maciej Komosinski and Szymon Ulatowski.
3// See LICENSE.txt for details.
4
5#ifndef _CALLBACKS_H_
6#define _CALLBACKS_H_
7
8#include "list.h"
9#include "statrick.h"
10#include <stdint.h>
11
12//#define USEMEMBERCALLBACK
13
14class CallbackNode
15{
16public:
17virtual ~CallbackNode() {}
18virtual void action(intptr_t calldata)=0;
19virtual int equals(CallbackNode*n) {return (this==n);}
20};
21
22#ifdef USEMEMBERCALLBACK
23class CallBase;
24class MemberCallbackNode :public CallbackNode
25{
26void *userdata;
27CallBase *object;
28void (CallBase::*member)(void*,intptr_t);
29  public:
30MemberCallbackNode(CallBase *o,void (CallBase::*m)(void*,intptr_t),void *d):object(o),member(m),userdata(d) {}
31void action(intptr_t calldata) {(object->*member)(userdata,calldata);}
32int equals(CallbackNode*);
33};
34#define MEMBERCALLBACK(obj,mem,dat) new MemberCallbackNode((CallBase*)(obj),(void (CallBase::*)(void*,intptr_t))(mem),(void*)(dat))
35#endif
36
37class FunctionCallbackNode :public CallbackNode
38{
39void *userdata;
40void (*fun)(void*,intptr_t);
41  public:
42FunctionCallbackNode(void (*f)(void*,intptr_t),void *d):userdata(d),fun(f) {}
43void action(intptr_t calldata) {(*fun)(userdata,calldata);}
44int equals(CallbackNode*);
45};
46#define FUNCTIONCALLBACK(fun,dat) new FunctionCallbackNode((void (*)(void*,intptr_t))(fun),(void*)(dat))
47
48class StatrickCallbackNode :public CallbackNode
49{
50void *object;
51void *userdata;
52void (*fun)(void*,void*,intptr_t);
53  public:
54StatrickCallbackNode(void *o,void (*f)(void*,void*,intptr_t),void *d):object(o),userdata(d),fun(f) {}
55void action(intptr_t calldata) {(*fun)(object,userdata,calldata);}
56int equals(CallbackNode*);
57};
58#define STATRICKCALLBACK(obj,name,dat) new StatrickCallbackNode((void*)(obj),(void (*)(void*,void*,intptr_t))STATRICKNAME(name),(void*)(dat))
59
60/**
61   Like in old 'DuoList' you can register for an event giving function pointer
62      add(Function* fun, void* anydata)
63   'fun' will be called with your pointer as the first argument (void*)
64   and event specific value as the second argument (intptr_t)
65      fun(void* anydata,intptr_t eventdata)
66
67   'StatrickCallbackNode' uses static functions to emulate object member calls.
68   @see statrick.h
69   
70   Unregistering callbacks:
71   The old remove(...) still works, but removeNode() is more efficient.
72   To use it you have to store what you get from add(...);
73      CallbackNode* node=thelist.l_add.add(&fun,data);
74      // thelist.l_add.remove(&fun,data);
75      thelist.l_add.removeNode(node); // this is better!
76
77 */
78
79class Callback: protected SList
80{
81public:
82~Callback();
83CallbackNode* add(CallbackNode*n);
84CallbackNode* add(void (*f)(void*,intptr_t),void *d)
85        {return add(new FunctionCallbackNode(f,d));}
86void remove(void (*f)(void*,intptr_t),void *d)
87        {remove(new FunctionCallbackNode(f,d));}
88void remove(CallbackNode*n);
89void removeNode(CallbackNode*n);
90void operator+=(void* fun) {add((void (*)(void*,intptr_t))fun,0);}
91void operator-=(void* fun) {remove((void (*)(void*,intptr_t))fun,0);}
92void action(intptr_t data);
93void action() {action(0);}
94int size() {return SList::size();}
95void clear() {SList::clear();}
96};
97
98///////////////////
99
100#define STCALLBACKDEF(name) STATRICKDEF2(name,void*,intptr_t)
101#define STCALLBACKDEFC(cls,name) STATRICKSTUB2(cls,name,void*,intptr_t)  \
102        void name(void* arg1,intptr_t arg2)
103#define VIRTCALLBACKDEF(name) STATRICKSTUB2(STATRICKCLASS,name,void*,intptr_t)  \
104        virtual void name(void* arg1,intptr_t arg2)
105#define VIRTCALLBACKDEFC(cls,name) STATRICKSTUB2(cls,name,void*,intptr_t)  \
106        virtual void name(void* arg1,intptr_t arg2)
107
108/* STCALLBACKDEFC(Class,name)
109
110     |
111     v
112
113   #define STATRICKCLASS Class
114   STCALLBACKDEF(name)
115   #undef STATRICKCLASS
116 */
117
118#define CALLBACKARGS void* arg1,intptr_t arg2
119
120#endif
121
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