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
  69 extern "C" {
  70 #endif
  71
  72 #define PyCurses_API_pointers 4
  73
  74 /* Type declarations */
  75
  76 typedef 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
  89 static 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 */
 110 static char *catchall_ERR  = "curses function returned ERR";
 111 static 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) \
 122 static PyObject *PyCurses_ ## X (PyObject *self) \
 123 { \
 124   PyCursesInitialised \
 125   return PyCursesCheckERR(X(), # X); }
 126
 127 #define NoArgOrFlagNoReturnFunction(X) \
 128 static 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) \
 144 static PyObject *PyCurses_ ## X (PyObject *self) \
 145 { \
 146  PyCursesInitialised \
 147  return PyInt_FromLong((long) X()); }
 148
 149
 150 #define NoArgReturnStringFunction(X) \
 151 static PyObject *PyCurses_ ## X (PyObject *self) \
 152 { \
 153   PyCursesInitialised \
 154   return PyString_FromString(X()); }
 155
 156 #define NoArgTrueFalseFunction(X) \
 157 static 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) \
 168 static 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