Include/py_curses.h

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