wxPython/src/_streams.i

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        _streams.i
   3 // Purpose:     SWIG typemaps and wrappers for wxInputStream
   4 //
   5 // Author:      Robin Dunn
   6 //
   7 // Created:     25-Sept-2000
   8 // RCS-ID:      $Id$
   9 // Copyright:   (c) 2003 by Total Control Software
  10 // Licence:     wxWindows license
  11 /////////////////////////////////////////////////////////////////////////////
  12
  13 // Not a %module
  14
  15
  16 //---------------------------------------------------------------------------
  17
  18 %{
  19 #include "wx/wxPython/pyistream.h"
  20 %}
  21
  22 //---------------------------------------------------------------------------
  23 %newgroup
  24
  25
  26 // typemaps for wxInputStream
  27 %typemap(in) wxInputStream*  (wxPyInputStream* temp, bool created) {
  28     if (wxPyConvertSwigPtr($input, (void **)&temp, wxT("wxPyInputStream"))) {
  29         $1 = temp->m_wxis;
  30         created = False;
  31     } else {
  32         PyErr_Clear();  // clear the failure of the wxPyConvert above
  33         $1 = wxPyCBInputStream_create($input, False);
  34         if ($1 == NULL) {
  35             PyErr_SetString(PyExc_TypeError, "Expected wxInputStream or Python file-like object.");
  36             SWIG_fail;
  37         }
  38         created = True;
  39     }
  40 }
  41 %typemap(freearg) wxInputStream* {
  42     if (created$argnum)
  43         delete $1;
  44 }
  45
  46
  47 %typemap(in) wxInputStream&       = wxInputStream*;
  48 %typemap(freearg) wxInputStream&  = wxInputStream*;
  49
  50
  51 %typemap(out) wxInputStream* {
  52     wxPyInputStream * _ptr = NULL;
  53
  54     if ($1) {
  55         _ptr = new wxPyInputStream($1);
  56     }
  57     $result = wxPyConstructObject(_ptr, wxT("wxPyInputStream"), True);
  58 }
  59
  60
  61 //---------------------------------------------------------------------------
  62
  63 enum wxSeekMode
  64 {
  65   wxFromStart,
  66   wxFromCurrent,
  67   wxFromEnd
  68 };
  69
  70
  71 %name(InputStream) class wxPyInputStream {
  72 public:
  73     %extend {
  74         wxPyInputStream(PyObject* p) {
  75             wxInputStream* wxis = wxPyCBInputStream::create(p);
  76             if (wxis)
  77                 return new wxPyInputStream(wxis);
  78             else
  79                 return NULL;
  80         }
  81     }
  82
  83     void close();
  84     void flush();
  85     bool eof();
  86     PyObject* read(int size=-1);
  87     PyObject* readline(int size=-1);
  88     PyObject* readlines(int sizehint=-1);
  89     void seek(int offset, int whence=0);
  90     int tell();
  91
  92     /*
  93       bool isatty();
  94       int fileno();
  95       void truncate(int size=-1);
  96       void write(wxString data);
  97       void writelines(wxStringPtrList);
  98     */
  99
 100     char Peek();
 101     char GetC();
 102     size_t LastRead();
 103     bool CanRead();
 104     bool Eof();
 105     bool Ungetch(char c);
 106
 107     long SeekI(long pos, wxSeekMode mode = wxFromStart);
 108     long TellI();
 109 };
 110
 111
 112
 113 // TODO:  make a more fully implemented file interface...
 114 class wxOutputStream {
 115 public:
 116     /*
 117       void close();
 118       void flush();
 119       wxString* read(int size=-1);
 120       wxString* readline(int size=-1);
 121       wxStringPtrList* readlines(int sizehint=-1);
 122       void seek(int offset, int whence=0);
 123       int tell();
 124       bool isatty();
 125       int fileno();
 126       void truncate(int size=-1);
 127       void write(wxString data);
 128       void writelines(wxStringPtrList);
 129     */
 130
 131     %extend {
 132         void write(PyObject* obj) {
 133             // We use only strings for the streams, not unicode
 134             PyObject* str = PyObject_Str(obj);
 135             if (! str) {
 136                 PyErr_SetString(PyExc_TypeError, "Unable to convert to string");
 137                 return;
 138             }
 139             self->Write(PyString_AS_STRING(str),
 140                         PyString_GET_SIZE(str));
 141             Py_DECREF(str);
 142         }
 143     }
 144 };
 145
 146
 147 //---------------------------------------------------------------------------
 148 %init %{
 149     wxPyPtrTypeMap_Add("wxInputStream", "wxPyInputStream");
 150 %}
 151 //---------------------------------------------------------------------------