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"), $owner);
  58 }
  59
  60
  61 //---------------------------------------------------------------------------
  62
  63 enum wxSeekMode
  64 {
  65   wxFromStart,
  66   wxFromCurrent,
  67   wxFromEnd
  68 };
  69
  70
  71 %rename(InputStream) wxPyInputStream;
  72 class wxPyInputStream
  73 {
  74 public:
  75     %extend {
  76         wxPyInputStream(PyObject* p) {
  77             wxInputStream* wxis = wxPyCBInputStream::create(p);
  78             if (wxis)
  79                 return new wxPyInputStream(wxis);
  80             else
  81                 return NULL;
  82         }
  83     }
  84     ~wxPyInputStream();
  85
  86     void close();
  87     void flush();
  88     bool eof();
  89     PyObject* read(int size=-1);
  90     PyObject* readline(int size=-1);
  91     PyObject* readlines(int sizehint=-1);
  92     void seek(int offset, int whence=0);
  93     int tell();
  94
  95     /*
  96       bool isatty();
  97       int fileno();
  98       void truncate(int size=-1);
  99       void write(wxString data);
 100       void writelines(wxStringPtrList);
 101     */
 102
 103     char Peek();
 104     char GetC();
 105     size_t LastRead();
 106     bool CanRead();
 107     bool Eof();
 108     bool Ungetch(char c);
 109
 110     long SeekI(long pos, wxSeekMode mode = wxFromStart);
 111     long TellI();
 112 };
 113
 114
 115
 116 // TODO:  make a more fully implemented file interface...
 117 class wxOutputStream {
 118 public:
 119     /*
 120       void close();
 121       void flush();
 122       wxString* read(int size=-1);
 123       wxString* readline(int size=-1);
 124       wxStringPtrList* readlines(int sizehint=-1);
 125       void seek(int offset, int whence=0);
 126       int tell();
 127       bool isatty();
 128       int fileno();
 129       void truncate(int size=-1);
 130       void write(wxString data);
 131       void writelines(wxStringPtrList);
 132     */
 133
 134     %extend {
 135         void write(PyObject* obj) {
 136             // We use only strings for the streams, not unicode
 137             PyObject* str = PyObject_Str(obj);
 138             if (! str) {
 139                 PyErr_SetString(PyExc_TypeError, "Unable to convert to string");
 140                 return;
 141             }
 142             self->Write(PyString_AS_STRING(str),
 143                         PyString_GET_SIZE(str));
 144             Py_DECREF(str);
 145         }
 146     }
 147 };
 148
 149
 150 //---------------------------------------------------------------------------
 151 %init %{
 152     wxPyPtrTypeMap_Add("wxInputStream", "wxPyInputStream");
 153 %}
 154 //---------------------------------------------------------------------------