summaryrefslogtreecommitdiffstats
path: root/Include/py_curses.h
blob: 62afb5e4b07f38ef44b924521a8830a220260ed9 (plain)
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

#ifndef Py_CURSES_H
#define Py_CURSES_H

#ifdef HAVE_NCURSES_H
#include <ncurses.h>
#else
#include <curses.h>
#endif

#ifdef __cplusplus
extern "C" {
#endif

#define PyCurses_API_pointers 4

/* Type declarations */

typedef struct {
	PyObject_HEAD
	WINDOW *win;
} PyCursesWindowObject;

#define PyCursesWindow_Check(v)	 ((v)->ob_type == &PyCursesWindow_Type)

#ifdef CURSES_MODULE
/* This section is used when compiling _cursesmodule.c */

#else
/* This section is used in modules that use the _cursesmodule API */

static void **PyCurses_API;

#define PyCursesWindow_Type (*(PyTypeObject *) PyCurses_API[0])
#define PyCursesSetupTermCalled  {if (! ((int (*)(void))PyCurses_API[1]) () ) return NULL;}
#define PyCursesInitialised      {if (! ((int (*)(void))PyCurses_API[2]) () ) return NULL;}
#define PyCursesInitialisedColor {if (! ((int (*)(void))PyCurses_API[3]) () ) return NULL;}

#define import_curses() \
{ \
  PyObject *module = PyImport_ImportModule("_curses"); \
  if (module != NULL) { \
    PyObject *module_dict = PyModule_GetDict(module); \
    PyObject *c_api_object = PyDict_GetItemString(module_dict, "_C_API"); \
    if (PyCObject_Check(c_api_object)) { \
      PyCurses_API = (void **)PyCObject_AsVoidPtr(c_api_object); \
    } \
  } \
}
#endif

/* general error messages */
static char *catchall_ERR  = "curses function returned ERR";
static char *catchall_NULL = "curses function returned NULL";

/* Utility macros */
#define ARG_COUNT(X) \
	(((X) == NULL) ? 0 : (PyTuple_Check(X) ? PyTuple_Size(X) : 1))

/* Function Prototype Macros - They are ugly but very, very useful. ;-)

   X - function name
   TYPE - parameter Type
   ERGSTR - format string for construction of the return value
   PARSESTR - format string for argument parsing
   */

#define NoArgNoReturnFunction(X) \
static PyObject *PyCurses_ ## X (PyObject *self, PyObject *args) \
{ \
  PyCursesInitialised \
  if (!PyArg_NoArgs(args)) return NULL; \
  return PyCursesCheckERR(X(), # X); }

#define NoArgOrFlagNoReturnFunction(X) \
static PyObject *PyCurses_ ## X (PyObject *self, PyObject *args) \
{ \
  int flag = 0; \
  PyCursesInitialised \
  switch(ARG_COUNT(args)) { \
  case 0: \
    return PyCursesCheckERR(X(), # X); \
  case 1: \
    if (!PyArg_Parse(args, "i;True(1) or False(0)", &flag)) return NULL; \
    if (flag) return PyCursesCheckERR(X(), # X); \
    else return PyCursesCheckERR(no ## X (), # X); \
  default: \
    PyErr_SetString(PyExc_TypeError, # X " requires 0 or 1 arguments"); \
    return NULL; } }

#define NoArgReturnIntFunction(X) \
static PyObject *PyCurses_ ## X (PyObject *self, PyObject *args) \
{ \
 PyCursesInitialised \
 if (!PyArg_NoArgs(args)) return NULL; \
 return PyInt_FromLong((long) X()); }


#define NoArgReturnStringFunction(X) \
static PyObject *PyCurses_ ## X (PyObject *self, PyObject *args) \
{ \
  PyCursesInitialised \
  if (!PyArg_NoArgs(args)) return NULL; \
  return PyString_FromString(X()); }

#define NoArgTrueFalseFunction(X) \
static PyObject *PyCurses_ ## X (PyObject *self, PyObject *args) \
{ \
  PyCursesInitialised \
  if (!PyArg_NoArgs(args)) return NULL; \
  if (X () == FALSE) { \
    Py_INCREF(Py_False); \
    return Py_False; \
  } \
  Py_INCREF(Py_True); \
  return Py_True; }

#define NoArgNoReturnVoidFunction(X) \
static PyObject *PyCurses_ ## X (PyObject *self, PyObject *args) \
{ \
  PyCursesInitialised \
  if (!PyArg_NoArgs(args)) return NULL; \
  X(); \
  Py_INCREF(Py_None); \
  return Py_None; }

#ifdef __cplusplus
}
#endif

#endif /* !defined(Py_CURSES_H) */