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
  72 %name(InputStream) class wxPyInputStream {
  73 public:
  74     %extend {
  75         wxPyInputStream(PyObject* p) {
  76             wxInputStream* wxis = wxPyCBInputStream::create(p);
  77             if (wxis)
  78                 return new wxPyInputStream(wxis);
  79             else
  80                 return NULL;
  81         }
  82     }
  83
  84     void close();
  85     void flush();
  86     bool eof();
  87     PyObject* read(int size=-1);
  88     PyObject* readline(int size=-1);
  89     PyObject* readlines(int sizehint=-1);
  90     void seek(int offset, int whence=0);
  91     int tell();
  92
  93     /*
  94       bool isatty();
  95       int fileno();
  96       void truncate(int size=-1);
  97       void write(wxString data);
  98       void writelines(wxStringPtrList);
  99     */
 100
 101     char Peek();
 102     char GetC();
 103     size_t LastRead();
 104     bool CanRead();
 105     bool Eof();
 106     bool Ungetch(char c);
 107
 108     long SeekI(long pos, wxSeekMode mode = wxFromStart);
 109     long TellI();
 110 };
 111
 112
 113
 114 // TODO:  make a more fully implemented file interface...
 115 class wxOutputStream {
 116 public:
 117     /*
 118       void close();
 119       void flush();
 120       wxString* read(int size=-1);
 121       wxString* readline(int size=-1);
 122       wxStringPtrList* readlines(int sizehint=-1);
 123       void seek(int offset, int whence=0);
 124       int tell();
 125       bool isatty();
 126       int fileno();
 127       void truncate(int size=-1);
 128       void write(wxString data);
 129       void writelines(wxStringPtrList);
 130     */
 131
 132     %extend {
 133         void write(PyObject* obj) {
 134             // We use only strings for the streams, not unicode
 135             PyObject* str = PyObject_Str(obj);
 136             if (! str) {
 137                 PyErr_SetString(PyExc_TypeError, "Unable to convert to string");
 138                 return;
 139             }
 140             self->Write(PyString_AS_STRING(str),
 141                         PyString_GET_SIZE(str));
 142             Py_DECREF(str);
 143         }
 144     }
 145 };
 146
 147
 148 //---------------------------------------------------------------------------
 149 %init %{
 150     wxPyPtrTypeMap_Add("wxInputStream", "wxPyInputStream");
 151 %}
 152 //---------------------------------------------------------------------------