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 __FreeBSD_version
  22 #include <osreldate.h>
  23 #endif
  24 #if __FreeBSD_version >= 500000
  25 #ifndef __wchar_t
  26 #define __wchar_t
  27 #endif
  28 #ifndef __wint_t
  29 #define __wint_t
  30 #endif
  31 #else
  32 #ifndef _WCHAR_T
  33 #define _WCHAR_T
  34 #endif
  35 #ifndef _WINT_T
  36 #define _WINT_T
  37 #endif
  38 #endif
  39 #endif
  40 #endif
  41
  42 #ifdef HAVE_NCURSES_H
  43 #include <ncurses.h>
  44 #else
  45 #include <curses.h>
  46 #ifdef HAVE_TERM_H
  47 /* for tigetstr, which is not declared in SysV curses */
  48 #include <term.h>
  49 #endif
  50 #endif
  51
  52 #ifdef HAVE_NCURSES_H
  53 /* configure was checking <curses.h>, but we will
  54    use <ncurses.h>, which has all these features. */
  55 #ifndef WINDOW_HAS_FLAGS
  56 #define WINDOW_HAS_FLAGS 1
  57 #endif
  58 #ifndef MVWDELCH_IS_EXPRESSION
  59 #define MVWDELCH_IS_EXPRESSION 1
  60 #endif
  61 #endif
  62
  63 #ifdef __cplusplus
  64 extern "C" {
  65 #endif
  66
  67 #define PyCurses_API_pointers 4
  68
  69 /* Type declarations */
  70
  71 typedef struct {
  72         PyObject_HEAD
  73         WINDOW *win;
  74 } PyCursesWindowObject;
  75
  76 #define PyCursesWindow_Check(v)  (Py_TYPE(v) == &PyCursesWindow_Type)
  77
  78 #ifdef CURSES_MODULE
  79 /* This section is used when compiling _cursesmodule.c */
  80
  81 #else
  82 /* This section is used in modules that use the _cursesmodule API */
  83
  84 static void **PyCurses_API;
  85
  86 #define PyCursesWindow_Type (*(PyTypeObject *) PyCurses_API[0])
  87 #define PyCursesSetupTermCalled  {if (! ((int (*)(void))PyCurses_API[1]) () ) return NULL;}
  88 #define PyCursesInitialised      {if (! ((int (*)(void))PyCurses_API[2]) () ) return NULL;}
  89 #define PyCursesInitialisedColor {if (! ((int (*)(void))PyCurses_API[3]) () ) return NULL;}
  90
  91 #define import_curses() \
  92 { \
  93   PyObject *module = PyImport_ImportModuleNoBlock("_curses"); \
  94   if (module != NULL) { \
  95     PyObject *module_dict = PyModule_GetDict(module); \
  96     PyObject *c_api_object = PyDict_GetItemString(module_dict, "_C_API"); \
  97     if (PyCObject_Check(c_api_object)) { \
  98       PyCurses_API = (void **)PyCObject_AsVoidPtr(c_api_object); \
  99     } \
 100   } \
 101 }
 102 #endif
 103
 104 /* general error messages */
 105 static char *catchall_ERR  = "curses function returned ERR";
 106 static char *catchall_NULL = "curses function returned NULL";
 107
 108 /* Function Prototype Macros - They are ugly but very, very useful. ;-)
 109
 110    X - function name
 111    TYPE - parameter Type
 112    ERGSTR - format string for construction of the return value
 113    PARSESTR - format string for argument parsing
 114    */
 115
 116 #define NoArgNoReturnFunction(X) \
 117 static PyObject *PyCurses_ ## X (PyObject *self) \
 118 { \
 119   PyCursesInitialised \
 120   return PyCursesCheckERR(X(), # X); }
 121
 122 #define NoArgOrFlagNoReturnFunction(X) \
 123 static PyObject *PyCurses_ ## X (PyObject *self, PyObject *args) \
 124 { \
 125   int flag = 0; \
 126   PyCursesInitialised \
 127   switch(PyTuple_Size(args)) { \
 128   case 0: \
 129     return PyCursesCheckERR(X(), # X); \
 130   case 1: \
 131     if (!PyArg_ParseTuple(args, "i;True(1) or False(0)", &flag)) return NULL; \
 132     if (flag) return PyCursesCheckERR(X(), # X); \
 133     else return PyCursesCheckERR(no ## X (), # X); \
 134   default: \
 135     PyErr_SetString(PyExc_TypeError, # X " requires 0 or 1 arguments"); \
 136     return NULL; } }
 137
 138 #define NoArgReturnIntFunction(X) \
 139 static PyObject *PyCurses_ ## X (PyObject *self) \
 140 { \
 141  PyCursesInitialised \
 142  return PyInt_FromLong((long) X()); }
 143
 144
 145 #define NoArgReturnStringFunction(X) \
 146 static PyObject *PyCurses_ ## X (PyObject *self) \
 147 { \
 148   PyCursesInitialised \
 149   return PyString_FromString(X()); }
 150
 151 #define NoArgTrueFalseFunction(X) \
 152 static PyObject *PyCurses_ ## X (PyObject *self) \
 153 { \
 154   PyCursesInitialised \
 155   if (X () == FALSE) { \
 156     Py_INCREF(Py_False); \
 157     return Py_False; \
 158   } \
 159   Py_INCREF(Py_True); \
 160   return Py_True; }
 161
 162 #define NoArgNoReturnVoidFunction(X) \
 163 static PyObject *PyCurses_ ## X (PyObject *self) \
 164 { \
 165   PyCursesInitialised \
 166   X(); \
 167   Py_INCREF(Py_None); \
 168   return Py_None; }
 169
 170 #ifdef __cplusplus
 171 }
 172 #endif
 173
 174 #endif /* !defined(Py_CURSES_H) */
 175
 176