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
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
|
/***************************************************************************
* event.h
* This file is part of the KDE project
* copyright (C)2004-2005 by Sebastian Sauer (mail@dipe.org)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
* You should have received a copy of the GNU Library General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
***************************************************************************/
#ifndef KROSS_API_EVENT_H
#define KROSS_API_EVENT_H
#include "../main/krossconfig.h"
#include "object.h"
#include "callable.h"
#include "list.h"
#include "exception.h"
#include "function.h"
#include "proxy.h"
#include "variant.h"
#include <tqstring.h>
#include <tqvaluelist.h>
#include <tqmap.h>
namespace Kross { namespace Api {
/**
* Template class for all kinds of callable events. An
* event is the abstract base for callable objects like
* methodfunctions in \a Class instances or \a EventSlot
* and \a EventSignal to access TQt signals and slots.
*/
template<class T>
class Event : public Callable
{
private:
/**
* Definition of function-pointers.
*/
typedef Object::Ptr(T::*FunctionPtr)(List::Ptr);
/**
* List of memberfunctions. Each function is accessible
* by the functionname.
*/
TQMap<TQString, Function* > m_functions;
public:
/**
* Constructor.
*
* \param name The name this \a Event has.
*/
Event(const TQString& name)
: Callable(name)
{
}
/**
* Destructor.
*/
virtual ~Event()
{
TQMapConstIterator<TQString, Function* > endit = m_functions.constEnd();
for(TQMapConstIterator<TQString, Function* > it = m_functions.constBegin(); it != endit; ++it)
delete it.data();
}
/**
* Add a \a Callable methodfunction to the list of functions
* this Object supports.
*
* The FunctionPtr points to the concret
* Object::Ptr myfuncname(List::Ptr)
* method in the class defined with template T.
*
* \param name The functionname. Each function this object
* holds should have an unique name to be
* still accessable.
* \param function A pointer to the methodfunction that
* should handle calls.
*
* \todo Remove this method as soon as there is no code using it
*/
inline void addFunction(const TQString& name, FunctionPtr function)
{
m_functions.replace(name, new Function0<T>(static_cast<T*>(this), function));
}
/**
* Add a methodfunction to the list of functions this Object
* supports.
*
* \param name The functionname. Each function this object
* holds should have an unique name to be
* still accessable.
* \param function A \a Function instance which defines
* the methodfunction. This \a Event will be the
* owner of the \a Function instance and will take
* care of deleting it if this \a Event got deleted.
*/
inline void addFunction(const TQString& name, Function* function)
{
m_functions.replace(name, function);
}
/**
* Template function to add a \a ProxyFunction as builtin-function
* to this \a Event instance.
*/
template<class RETURNOBJ, class ARG1OBJ, class ARG2OBJ, class ARG3OBJ, class ARG4OBJ, class INSTANCE, typename METHOD>
inline void addFunction4(const TQString& name, INSTANCE* instance, METHOD method, ARG1OBJ* arg1 = 0, ARG2OBJ* arg2 = 0, ARG3OBJ* arg3 = 0, ARG4OBJ* arg4 = 0)
{
m_functions.replace(name,
new Kross::Api::ProxyFunction<INSTANCE, METHOD, RETURNOBJ, ARG1OBJ, ARG2OBJ, ARG3OBJ, ARG4OBJ>
(instance, method, arg1, arg2, arg3, arg4)
);
}
/// Same as above with three arguments.
template<class RETURNOBJ, class ARG1OBJ, class ARG2OBJ, class ARG3OBJ, class INSTANCE, typename METHOD>
inline void addFunction3(const TQString& name, INSTANCE* instance, METHOD method, ARG1OBJ* arg1 = 0, ARG2OBJ* arg2 = 0, ARG3OBJ* arg3 = 0)
{
m_functions.replace(name,
new Kross::Api::ProxyFunction<INSTANCE, METHOD, RETURNOBJ, ARG1OBJ, ARG2OBJ, ARG3OBJ>
(instance, method, arg1, arg2, arg3)
);
}
/// Same as above with two arguments.
template<class RETURNOBJ, class ARG1OBJ, class ARG2OBJ, class INSTANCE, typename METHOD>
inline void addFunction2(const TQString& name, INSTANCE* instance, METHOD method, ARG1OBJ* arg1 = 0, ARG2OBJ* arg2 = 0)
{
m_functions.replace(name,
new Kross::Api::ProxyFunction<INSTANCE, METHOD, RETURNOBJ, ARG1OBJ, ARG2OBJ>
(instance, method, arg1, arg2)
);
}
/// Same as above, but with one argument.
template<class RETURNOBJ, class ARG1OBJ, class INSTANCE, typename METHOD>
inline void addFunction1(const TQString& name, INSTANCE* instance, METHOD method, ARG1OBJ* arg1 = 0)
{
m_functions.replace(name,
new Kross::Api::ProxyFunction<INSTANCE, METHOD, RETURNOBJ, ARG1OBJ>
(instance, method, arg1)
);
}
/// Same as above with no arguments.
template<class RETURNOBJ, class INSTANCE, typename METHOD>
inline void addFunction0(const TQString& name, INSTANCE* instance, METHOD method)
{
m_functions.replace(name,
new Kross::Api::ProxyFunction<INSTANCE, METHOD, RETURNOBJ>
(instance, method)
);
}
/**
* Check if a function is a member of this \a Callable
* \param name the function name
* \return true if the function is available in this \a Callable
*/
bool isAFunction(const TQString & name) const
{
return m_functions.contains(name);
}
/**
* Overloaded method to handle function-calls.
*
* \throw AttributeException if argumentparameters
* arn't valid.
* \throw RuntimeException if the functionname isn't
* valid.
* \param name The functionname. Each function this
* Object holds should have a different
* name cause they are access by they name.
* If name is TQString() or empty, a
* self-reference to this instance is
* returned.
* \param arguments The list of arguments.
* \return An Object representing the call result
* or NULL if there doesn't exists such a
* function with defined name.
*/
virtual Object::Ptr call(const TQString& name, List::Ptr arguments)
{
#ifdef KROSS_API_EVENT_CALL_DEBUG
krossdebug( TQString("Event::call() name='%1' getName()='%2'").tqarg(name).tqarg(getName()) );
#endif
Function* function = m_functions[name];
if(function) {
#ifdef KROSS_API_EVENT_CALL_DEBUG
krossdebug( TQString("Event::call() name='%1' is a builtin function.").tqarg(name) );
#endif
return function->call(arguments);
}
if(name.isNull()) {
// If no name is defined, we return a reference to our instance.
return this;
}
// Redirect the call to the Kross::Api::Callable we are inherited from.
return Callable::call(name, arguments);
}
};
}}
#endif
|
