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
|
/*
* This file is part of pyElemental, a periodic table Python module with
* detailed information on elements.
*
* Copyright (C) 2006-2007 Kevin Daughtridge <kevin@kdau.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef PYELEMENTAL__MISC_HH
#define PYELEMENTAL__MISC_HH
#include <Python.h>
#include <string>
#include <glibmm/ustring.h>
#define X_PYOBJECT(obj) reinterpret_cast<PyObject*> (obj)
bool X_PyType_AddIntConstant (PyTypeObject* type, const char* name, long value);
bool X_PyObject_CheckAttr (PyObject* attr, PyTypeObject* attrtype,
const char* attrname, PyTypeObject* type);
bool X_PySequence_CheckItems (PyObject* seq, PyTypeObject* type);
PyObject* X_PyString_FromCxxString (const std::string& source);
PyObject* X_PyUnicode_FromUstring (const Glib::ustring& source);
Glib::ustring X_PyUnicode_AsUstring (PyObject* self);
//******************************************************************************
template<typename cxxtype_>
class CxxWrapperBase
{
public:
typedef cxxtype_ cxxtype;
struct pytype
{
PyObject_HEAD
cxxtype *cxxobj;
bool owned;
};
static cxxtype&
unwrap (PyObject* self)
{
return *reinterpret_cast<pytype*> (self)->cxxobj;
}
protected:
static PyObject*
wrap_ref (PyTypeObject* type, const cxxtype& source)
{
pytype *self = reinterpret_cast<pytype*> (type->tp_alloc (type, 0));
if (self != NULL)
{
self->cxxobj = const_cast<cxxtype*> (&source);
self->owned = false;
}
return X_PYOBJECT (self);
}
static void
dealloc (pytype* self)
{
if (self->owned)
{
delete self->cxxobj;
self->cxxobj = NULL;
}
self->ob_type->tp_free (X_PYOBJECT (self));
}
};
template<typename cxxtype_>
class CxxWrapper
: public CxxWrapperBase<cxxtype_>
{
public:
typedef typename CxxWrapperBase<cxxtype_>::cxxtype cxxtype;
typedef typename CxxWrapperBase<cxxtype_>::pytype pytype;
protected:
static PyObject*
create (PyTypeObject* type, PyObject*, PyObject*)
{
pytype *self = reinterpret_cast<pytype*> (type->tp_alloc (type, 0));
if (self != NULL)
{
self->cxxobj = new cxxtype ();
self->owned = true;
}
return X_PYOBJECT (self);
}
static PyObject*
wrap_copy (PyTypeObject* type, const cxxtype& source)
{
pytype *self = reinterpret_cast<pytype*> (type->tp_alloc (type, 0));
if (self != NULL)
{
self->cxxobj = new cxxtype (source);
self->owned = true;
}
return X_PYOBJECT (self);
}
};
#endif // PYELEMENTAL__MISC_HH
|
