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 #endif
  14
  15 #ifdef __FreeBSD__
  16 /*
  17 ** On FreeBSD, [n]curses.h and stdlib.h/wchar.h use different guards
  18 ** against multiple definition of wchar_t and wint_t.
  19 */
  20 #ifdef  _XOPEN_SOURCE_EXTENDED
  21 #ifndef _WCHAR_T
  22 #define _WCHAR_T
  23 #endif
  24 #ifndef _WINT_T
  25 #define _WINT_T
  26 #endif
  27 #endif
  28 #endif
  29
  30 #ifdef HAVE_NCURSES_H
  31 #include <ncurses.h>
  32 #else
  33 #include <curses.h>
  34 #ifdef HAVE_TERM_H
  35 /* for tigetstr, which is not declared in SysV curses */
  36 #include <term.h>
  37 #endif
  38 #endif
  39
  40 #ifdef HAVE_NCURSES_H
  41 /* configure was checking <curses.h>, but we will
  42    use <ncurses.h>, which has all these features. */
  43 #ifndef WINDOW_HAS_FLAGS
  44 #define WINDOW_HAS_FLAGS 1
  45 #endif
  46 #ifndef MVWDELCH_IS_EXPRESSION
  47 #define MVWDELCH_IS_EXPRESSION 1
  48 #endif
  49 #endif
  50
  51 #ifdef __cplusplus
  52 extern "C" {
  53 #endif
  54
  55 #define PyCurses_API_pointers 4
  56
  57 /* Type declarations */
  58
  59 typedef struct {
  60         PyObject_HEAD
  61         WINDOW *win;
  62 } PyCursesWindowObject;
  63
  64 #define PyCursesWindow_Check(v)  ((v)->ob_type == &PyCursesWindow_Type)
  65
  66 #ifdef CURSES_MODULE
  67 /* This section is used when compiling _cursesmodule.c */
  68
  69 #else
  70 /* This section is used in modules that use the _cursesmodule API */
  71
  72 static void **PyCurses_API;
  73
  74 #define PyCursesWindow_Type (*(PyTypeObject *) PyCurses_API[0])
  75 #define PyCursesSetupTermCalled  {if (! ((int (*)(void))PyCurses_API[1]) () ) return NULL;}
  76 #define PyCursesInitialised      {if (! ((int (*)(void))PyCurses_API[2]) () ) return NULL;}
  77 #define PyCursesInitialisedColor {if (! ((int (*)(void))PyCurses_API[3]) () ) return NULL;}
  78
  79 #define import_curses() \
  80 { \
  81   PyObject *module = PyImport_ImportModule("_curses"); \
  82   if (module != NULL) { \
  83     PyObject *module_dict = PyModule_GetDict(module); \
  84     PyObject *c_api_object = PyDict_GetItemString(module_dict, "_C_API"); \
  85     if (PyCObject_Check(c_api_object)) { \
  86       PyCurses_API = (void **)PyCObject_AsVoidPtr(c_api_object); \
  87     } \
  88   } \
  89 }
  90 #endif
  91
  92 /* general error messages */
  93 static char *catchall_ERR  = "curses function returned ERR";
  94 static char *catchall_NULL = "curses function returned NULL";
  95
  96 /* Function Prototype Macros - They are ugly but very, very useful. ;-)
  97
  98    X - function name
  99    TYPE - parameter Type
 100    ERGSTR - format string for construction of the return value
 101    PARSESTR - format string for argument parsing
 102    */
 103
 104 #define NoArgNoReturnFunction(X) \
 105 static PyObject *PyCurses_ ## X (PyObject *self) \
 106 { \
 107   PyCursesInitialised \
 108   return PyCursesCheckERR(X(), # X); }
 109
 110 #define NoArgOrFlagNoReturnFunction(X) \
 111 static PyObject *PyCurses_ ## X (PyObject *self, PyObject *args) \
 112 { \
 113   int flag = 0; \
 114   PyCursesInitialised \
 115   switch(PyTuple_Size(args)) { \
 116   case 0: \
 117     return PyCursesCheckERR(X(), # X); \
 118   case 1: \
 119     if (!PyArg_ParseTuple(args, "i;True(1) or False(0)", &flag)) return NULL; \
 120     if (flag) return PyCursesCheckERR(X(), # X); \
 121     else return PyCursesCheckERR(no ## X (), # X); \
 122   default: \
 123     PyErr_SetString(PyExc_TypeError, # X " requires 0 or 1 arguments"); \
 124     return NULL; } }
 125
 126 #define NoArgReturnIntFunction(X) \
 127 static PyObject *PyCurses_ ## X (PyObject *self) \
 128 { \
 129  PyCursesInitialised \
 130  return PyInt_FromLong((long) X()); }
 131
 132
 133 #define NoArgReturnStringFunction(X) \
 134 static PyObject *PyCurses_ ## X (PyObject *self) \
 135 { \
 136   PyCursesInitialised \
 137   return PyString_FromString(X()); }
 138
 139 #define NoArgTrueFalseFunction(X) \
 140 static PyObject *PyCurses_ ## X (PyObject *self) \
 141 { \
 142   PyCursesInitialised \
 143   if (X () == FALSE) { \
 144     Py_INCREF(Py_False); \
 145     return Py_False; \
 146   } \
 147   Py_INCREF(Py_True); \
 148   return Py_True; }
 149
 150 #define NoArgNoReturnVoidFunction(X) \
 151 static PyObject *PyCurses_ ## X (PyObject *self) \
 152 { \
 153   PyCursesInitialised \
 154   X(); \
 155   Py_INCREF(Py_None); \
 156   return Py_None; }
 157
 158 #ifdef __cplusplus
 159 }
 160 #endif
 161
 162 #endif /* !defined(Py_CURSES_H) */
 163
 164