hotpy_2 / Include / py_curses.h

#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) */
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