/Include/py_curses.h

  1
  2#ifndef Py_CURSES_H
  3#define Py_CURSES_H
  4
  5#ifdef __APPLE__
  6/*
  7** On Mac OS X 10.2 [n]curses.h and stdlib.h use different guards
  8** against multiple definition of wchar_t.
  9*/
 10#ifdef	_BSD_WCHAR_T_DEFINED_
 11#define _WCHAR_T
 12#endif
 13
 14/* the following define is necessary for OS X 10.6; without it, the
 15   Apple-supplied ncurses.h sets NCURSES_OPAQUE to 1, and then Python
 16   can't get at the WINDOW flags field. */
 17#define NCURSES_OPAQUE 0
 18#endif /* __APPLE__ */
 19
 20#ifdef __FreeBSD__
 21/*
 22** On FreeBSD, [n]curses.h and stdlib.h/wchar.h use different guards
 23** against multiple definition of wchar_t and wint_t.
 24*/
 25#ifdef	_XOPEN_SOURCE_EXTENDED
 26#ifndef __FreeBSD_version
 27#include <osreldate.h>
 28#endif
 29#if __FreeBSD_version >= 500000
 30#ifndef __wchar_t
 31#define __wchar_t
 32#endif
 33#ifndef __wint_t
 34#define __wint_t
 35#endif
 36#else
 37#ifndef _WCHAR_T
 38#define _WCHAR_T
 39#endif
 40#ifndef _WINT_T
 41#define _WINT_T
 42#endif
 43#endif
 44#endif
 45#endif
 46
 47#ifdef HAVE_NCURSES_H
 48#include <ncurses.h>
 49#else
 50#include <curses.h>
 51#ifdef HAVE_TERM_H
 52/* for tigetstr, which is not declared in SysV curses */
 53#include <term.h>
 54#endif
 55#endif
 56
 57#ifdef HAVE_NCURSES_H
 58/* configure was checking <curses.h>, but we will
 59   use <ncurses.h>, which has all these features. */
 60#ifndef WINDOW_HAS_FLAGS
 61#define WINDOW_HAS_FLAGS 1
 62#endif
 63#ifndef MVWDELCH_IS_EXPRESSION
 64#define MVWDELCH_IS_EXPRESSION 1
 65#endif
 66#endif
 67
 68#ifdef __cplusplus
 69extern "C" {
 70#endif
 71
 72#define PyCurses_API_pointers 4
 73
 74/* Type declarations */
 75
 76typedef struct {
 77	PyObject_HEAD
 78	WINDOW *win;
 79} PyCursesWindowObject;
 80
 81#define PyCursesWindow_Check(v)	 (Py_TYPE(v) == &PyCursesWindow_Type)
 82
 83#ifdef CURSES_MODULE
 84/* This section is used when compiling _cursesmodule.c */
 85
 86#else
 87/* This section is used in modules that use the _cursesmodule API */
 88
 89static void **PyCurses_API;
 90
 91#define PyCursesWindow_Type (*(PyTypeObject *) PyCurses_API[0])
 92#define PyCursesSetupTermCalled  {if (! ((int (*)(void))PyCurses_API[1]) () ) return NULL;}
 93#define PyCursesInitialised      {if (! ((int (*)(void))PyCurses_API[2]) () ) return NULL;}
 94#define PyCursesInitialisedColor {if (! ((int (*)(void))PyCurses_API[3]) () ) return NULL;}
 95
 96#define import_curses() \
 97{ \
 98  PyObject *module = PyImport_ImportModuleNoBlock("_curses"); \
 99  if (module != NULL) { \
100    PyObject *module_dict = PyModule_GetDict(module); \
101    PyObject *c_api_object = PyDict_GetItemString(module_dict, "_C_API"); \
102    if (PyCObject_Check(c_api_object)) { \
103      PyCurses_API = (void **)PyCObject_AsVoidPtr(c_api_object); \
104    } \
105  } \
106}
107#endif
108
109/* general error messages */
110static char *catchall_ERR  = "curses function returned ERR";
111static char *catchall_NULL = "curses function returned NULL";
112
113/* Function Prototype Macros - They are ugly but very, very useful. ;-)
114
115   X - function name
116   TYPE - parameter Type
117   ERGSTR - format string for construction of the return value
118   PARSESTR - format string for argument parsing
119   */
120
121#define NoArgNoReturnFunction(X) \
122static PyObject *PyCurses_ ## X (PyObject *self) \
123{ \
124  PyCursesInitialised \
125  return PyCursesCheckERR(X(), # X); }
126
127#define NoArgOrFlagNoReturnFunction(X) \
128static PyObject *PyCurses_ ## X (PyObject *self, PyObject *args) \
129{ \
130  int flag = 0; \
131  PyCursesInitialised \
132  switch(PyTuple_Size(args)) { \
133  case 0: \
134    return PyCursesCheckERR(X(), # X); \
135  case 1: \
136    if (!PyArg_ParseTuple(args, "i;True(1) or False(0)", &flag)) return NULL; \
137    if (flag) return PyCursesCheckERR(X(), # X); \
138    else return PyCursesCheckERR(no ## X (), # X); \
139  default: \
140    PyErr_SetString(PyExc_TypeError, # X " requires 0 or 1 arguments"); \
141    return NULL; } }
142
143#define NoArgReturnIntFunction(X) \
144static PyObject *PyCurses_ ## X (PyObject *self) \
145{ \
146 PyCursesInitialised \
147 return PyInt_FromLong((long) X()); }
148
149
150#define NoArgReturnStringFunction(X) \
151static PyObject *PyCurses_ ## X (PyObject *self) \
152{ \
153  PyCursesInitialised \
154  return PyString_FromString(X()); }
155
156#define NoArgTrueFalseFunction(X) \
157static PyObject *PyCurses_ ## X (PyObject *self) \
158{ \
159  PyCursesInitialised \
160  if (X () == FALSE) { \
161    Py_INCREF(Py_False); \
162    return Py_False; \
163  } \
164  Py_INCREF(Py_True); \
165  return Py_True; }
166
167#define NoArgNoReturnVoidFunction(X) \
168static PyObject *PyCurses_ ## X (PyObject *self) \
169{ \
170  PyCursesInitialised \
171  X(); \
172  Py_INCREF(Py_None); \
173  return Py_None; }
174
175#ifdef __cplusplus
176}
177#endif
178
179#endif /* !defined(Py_CURSES_H) */
180
181