wxPython/src/streams.i

/////////////////////////////////////////////////////////////////////////////
// Name:        streams.i
// Purpose:     SWIG definitions of the wxFileSystem family of classes
//
// Author:      Joerg Baumann
//
// Created:     25-Sept-2000
// RCS-ID:      $Id$
// Copyright:   (c) 2000 by Joerg Baumann
// Licence:     wxWindows license
/////////////////////////////////////////////////////////////////////////////

%module streams

%{
#include "helpers.h"
#include <wx/stream.h>
#include <wx/list.h>
%}

//----------------------------------------------------------------------

%include typemaps.i
%include my_typemaps.i

// Import some definitions of other classes, etc.
%import _defs.i

%pragma(python) code = "import wx"
%pragma(python) code = "import string"

//----------------------------------------------------------------------
// typemaps for wxInputStream
%typemap(python,in) wxInputStream *stream {
    if (PyInstance_Check($source)) {
        wxPyInputStream* ptr;
        if (SWIG_GetPtrObj($source, (void **) &ptr,"_wxPyInputStream_p")) {
            PyErr_SetString(PyExc_TypeError,"Expected _wxInputStream_p.");
            return NULL;
        }
        $target = ptr->wxi;
    } else {
        PyErr_SetString(PyExc_TypeError,"Expected _wxInputStream_p.");
        return NULL;
    }
}


// typemaps for wxInputStream
%typemap(python,out) wxInputStream* {
    wxPyInputStream * _ptr = NULL;

    if ($source) {
        _ptr = new wxPyInputStream($source);
    }
    $target = wxPyConstructObject(_ptr, "wxInputStream", TRUE);
}

//----------------------------------------------------------------------

%{  // C++
// definitions of wxStringPtrList and wxPyInputStream
#include <wx/listimpl.cpp>
WX_DEFINE_LIST(wxStringPtrList);


void wxPyInputStream::close() {
    /* do nothing */
}

void wxPyInputStream::flush() {
    /*do nothing*/
}

bool wxPyInputStream::eof() {
    if (wxi)
        return wxi->Eof();
    else
        return TRUE;
}

wxPyInputStream::~wxPyInputStream() {
    /*do nothing*/
}

wxString* wxPyInputStream::read(int size) {
    wxString* s = NULL;
    const int BUFSIZE = 1024;

    // check if we have a real wxInputStream to work with
    if (!wxi) {
        PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream below");
        return NULL;
    }

    if (size < 0) {
        // init buffers
        char * buf = new char[BUFSIZE];
        if (!buf) {
            PyErr_NoMemory();
            return NULL;
        }

        s = new wxString();
        if (!s) {
            delete buf;
            PyErr_NoMemory();
            return NULL;
        }

        // read until EOF
        wxPy_BEGIN_ALLOW_THREADS;
        while (! wxi->Eof()) {
            wxi->Read(buf, BUFSIZE);
            //*s += wxString(buf, wxi->LastRead());
            s->Append(buf, wxi->LastRead());
        }
        delete buf;
        wxPy_END_ALLOW_THREADS;

        // error check
        if (wxi->LastError() == wxSTREAM_READ_ERROR) {
            delete s;
            PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
            return NULL;
        }

    } else {  // Read only size number of characters
        s = new wxString;
        if (!s) {
            PyErr_NoMemory();
            return NULL;
        }

        // read size bytes
        wxPy_BEGIN_ALLOW_THREADS;
        wxi->Read(s->GetWriteBuf(size+1), size);
        s->UngetWriteBuf(wxi->LastRead());
        wxPy_END_ALLOW_THREADS;

        // error check
        if (wxi->LastError() == wxSTREAM_READ_ERROR) {
            delete s;
            PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
            return NULL;
        }
    }
    return s;
}


wxString* wxPyInputStream::readline (int size) {
    // check if we have a real wxInputStream to work with
    if (!wxi) {
        PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream below");
        return NULL;
    }

    // init buffer
    int i;
    char ch;
    wxString* s = new wxString;
    if (!s) {
        PyErr_NoMemory();
        return NULL;
    }

    // read until \n or byte limit reached
    wxPy_BEGIN_ALLOW_THREADS;
    for (i=ch=0; (ch != '\n') && (!wxi->Eof()) && ((size < 0) || (i < size)); i++) {
        *s += ch = wxi->GetC();
    }
    wxPy_END_ALLOW_THREADS;

    // errorcheck
    if (wxi->LastError() == wxSTREAM_READ_ERROR) {
        delete s;
        PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
        return NULL;
    }
    return s;
}


wxStringPtrList* wxPyInputStream::readlines (int sizehint) {
    // check if we have a real wxInputStream to work with
    if (!wxi) {
        PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream below");
        return NULL;
    }

    // init list
    wxStringPtrList* l = new wxStringPtrList();
    if (!l) {
        PyErr_NoMemory();
        return NULL;
    }

    // read sizehint bytes or until EOF
    wxPy_BEGIN_ALLOW_THREADS;
    int i;
    for (i=0; (!wxi->Eof()) && ((sizehint < 0) || (i < sizehint));) {
        wxString* s = readline();
        if (s == NULL) {
            l->DeleteContents(TRUE);
            l->Clear();
            return NULL;
        }
        l->Append(s);
        i = i + s->Length();
    }
    wxPy_END_ALLOW_THREADS;

    // error check
    if (wxi->LastError() == wxSTREAM_READ_ERROR) {
        l->DeleteContents(TRUE);
        l->Clear();
        PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
        return NULL;
    }
    return l;
}


void wxPyInputStream::seek(int offset, int whence) {
    if (wxi)
        wxi->SeekI(offset, wxSeekMode(whence));
}

int wxPyInputStream::tell(){
    if (wxi)
        return wxi->TellI();
}


// wxInputStream which operates on a Python file-like object
class wxPyCBInputStream : public wxInputStream {
protected:
    PyObject* read;
    PyObject* seek;
    PyObject* tell;
    PyObject* py;

    virtual size_t OnSysRead(void *buffer, size_t bufsize) {
        if (bufsize == 0)
            return 0;

        wxPyTState* state = wxPyBeginBlockThreads();
        PyObject* arglist = Py_BuildValue("(i)", bufsize);
        PyObject* result = PyEval_CallObject(read, arglist);
        Py_DECREF(arglist);

        size_t o = 0;
        if ((result != NULL) && PyString_Check(result)) {
            o = PyString_Size(result);
            if (o == 0)
                m_lasterror = wxSTREAM_EOF;
            if (o > bufsize)
                o = bufsize;
            strncpy((char*)buffer, PyString_AsString(result), o);
            Py_DECREF(result);

        }
        else
            m_lasterror = wxSTREAM_READ_ERROR;
        wxPyEndBlockThreads(state);
        m_lastcount = o;
        return o;
    }

    virtual size_t OnSysWrite(const void *buffer, size_t bufsize){
        m_lasterror = wxSTREAM_WRITE_ERROR;
        return 0;
    }

    virtual off_t OnSysSeek(off_t off, wxSeekMode mode){
        wxPyTState* state = wxPyBeginBlockThreads();
        PyObject*arglist = Py_BuildValue("(ii)", off, mode);
        PyObject*result = PyEval_CallObject(seek, arglist);
        Py_DECREF(arglist);
        Py_XDECREF(result);
        wxPyEndBlockThreads(state);
        return OnSysTell();
    }

    virtual off_t OnSysTell() const{
        wxPyTState* state = wxPyBeginBlockThreads();
        PyObject* arglist = Py_BuildValue("()");
        PyObject* result = PyEval_CallObject(tell, arglist);
        Py_DECREF(arglist);
        off_t o = 0;
        if (result != NULL) {
            o = PyInt_AsLong(result);
            Py_DECREF(result);
        };
        wxPyEndBlockThreads(state);
        return o;
    }

    wxPyCBInputStream(PyObject *p, PyObject *r, PyObject *s, PyObject *t)
        : py(p), read(r), seek(s), tell(t)
        {}

public:
    ~wxPyCBInputStream() {
        wxPyTState* state = wxPyBeginBlockThreads();
        Py_XDECREF(py);
        Py_XDECREF(read);
        Py_XDECREF(seek);
        Py_XDECREF(tell);
        wxPyEndBlockThreads(state);
    }

    virtual size_t GetSize() {
        if (seek && tell) {
            off_t temp = OnSysTell();
            off_t ret = OnSysSeek(0, wxFromEnd);
            OnSysSeek(temp, wxFromStart);
            return ret;
        }
        else
            return 0;
    }

    static wxPyCBInputStream* create(PyObject *py) {
        PyObject* read;
        PyObject* seek;
        PyObject* tell;

        if (!PyInstance_Check(py) && !PyFile_Check(py)) {
            PyErr_SetString(PyExc_TypeError, "Not a file-like object");
            Py_XDECREF(py);
            return NULL;
        }
        read = getMethod(py, "read");
        seek = getMethod(py, "seek");
        tell = getMethod(py, "tell");

        if (!read) {
            PyErr_SetString(PyExc_TypeError, "Not a file-like object");
            Py_XDECREF(py);
            Py_XDECREF(read);
            Py_XDECREF(seek);
            Py_XDECREF(tell);
            return NULL;
        }
        return new wxPyCBInputStream(py, read, seek, tell);
    }

    static PyObject* getMethod(PyObject* py, char* name) {
        if (!PyObject_HasAttrString(py, name))
            return NULL;
        PyObject* o = PyObject_GetAttrString(py, name);
        if (!PyMethod_Check(o) && !PyCFunction_Check(o)) {
            Py_DECREF(o);
            return NULL;
        }
        return o;
    }

protected:

};

%}  // End of the C++
//----------------------------------------------------------------------


// block threads for wxPyInputStream  ****  WHY?
%except(python) {
    $function
}


// wxStringPtrList* to python list of strings typemap
%typemap(python, out) wxStringPtrList* {
    if ($source) {
        $target = PyList_New($source->GetCount());
        wxStringPtrList::Node *node = $source->GetFirst();
        for (int i=0; node; i++) {
            wxString *s = node->GetData();
            PyList_SetItem($target, i, PyString_FromStringAndSize(s->c_str(), s->Len()));
            node = node->GetNext();
            delete s;
        }
        delete $source;
    }
    else
        $target=0;
}


// transport exceptions via %target=0
%typemap(python, out) wxPyInputStream* {
    char _ptemp[128];
    if ($source) {
        SWIG_MakePtr(_ptemp, (char *) $source,"_wxPyInputStream_p");
        $target = Py_BuildValue("s",_ptemp);
    }
    else
        $target=0;
}


// transport exceptions via %target=0
%typemap(python, out) wxString* {
    if ($source) {
        $target = PyString_FromStringAndSize($source->c_str(), $source->Len());
        delete $source;
    }
    else
        $target=0;
}


%name(wxInputStream) class wxPyInputStream {
public:
    %addmethods {
        wxPyInputStream(PyObject* p) {
            wxInputStream* wxi = wxPyCBInputStream::create(p);
            if (wxi)
                return new wxPyInputStream(wxi);
            else
                return NULL;
        }
    }
    void close();
    void flush();
    bool eof();
    wxString* read(int size=-1);
    wxString* readline(int size=-1);
    wxStringPtrList* readlines(int sizehint=-1);
    void seek(int offset, int whence=0);
    int tell();
    /*
      bool isatty();
      int fileno();
      void truncate(int size=-1);
      void write(wxString data);
      void writelines(wxStringPtrList);
    */
}


// TODO:  make a more fully implemented file interface...
class wxOutputStream {
public:
    /*
      void close();
      void flush();
      wxString* read(int size=-1);
      wxString* readline(int size=-1);
      wxStringPtrList* readlines(int sizehint=-1);
      void seek(int offset, int whence=0);
      int tell();
      bool isatty();
      int fileno();
      void truncate(int size=-1);
      void write(wxString data);
      void writelines(wxStringPtrList);
    */

    %addmethods {
        void write(const wxString& str) {
            self->Write(str.c_str(), str.Length());
        }
    }
};


// restore except and typemaps
%typemap(python,out) wxStringPtrList*;
%typemap(python,out) wxPyInputStream*;
%typemap(python, out) wxString* {
    $target = PyString_FromStringAndSize($source->c_str(), $source->Len());
}
%except(python) {
    wxPy_BEGIN_ALLOW_THREADS;
    $function
    wxPy_END_ALLOW_THREADS;
}


//----------------------------------------------------------------------

%init %{
    wxPyPtrTypeMap_Add("wxInputStream", "wxPyInputStream");
%}

//----------------------------------------------------------------------
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: streams.i
	3	// Purpose: SWIG definitions of the wxFileSystem family of classes
	4	//
	5	// Author: Joerg Baumann
	6	//
	7	// Created: 25-Sept-2000
	8	// RCS-ID: $Id$
	9	// Copyright: (c) 2000 by Joerg Baumann
	10	// Licence: wxWindows license
	11	/////////////////////////////////////////////////////////////////////////////
	12
	13	%module streams
	14
	15	%{
	16	#include "helpers.h"
	17	#include <wx/stream.h>
	18	#include <wx/list.h>
	19	%}
	20
	21	//----------------------------------------------------------------------
	22
	23	%include typemaps.i
	24	%include my_typemaps.i
	25
	26	// Import some definitions of other classes, etc.
	27	%import _defs.i
	28
	29	%pragma(python) code = "import wx"
	30	%pragma(python) code = "import string"
	31
	32	//----------------------------------------------------------------------
	33	// typemaps for wxInputStream
	34	%typemap(python,in) wxInputStream *stream {
	35	if (PyInstance_Check($source)) {
	36	wxPyInputStream* ptr;
	37	if (SWIG_GetPtrObj($source, (void **) &ptr,"_wxPyInputStream_p")) {
	38	PyErr_SetString(PyExc_TypeError,"Expected _wxInputStream_p.");
	39	return NULL;
	40	}
	41	$target = ptr->wxi;
	42	} else {
	43	PyErr_SetString(PyExc_TypeError,"Expected _wxInputStream_p.");
	44	return NULL;
	45	}
	46	}
	47
	48
	49	// typemaps for wxInputStream
	50	%typemap(python,out) wxInputStream* {
	51	wxPyInputStream * _ptr = NULL;
	52
	53	if ($source) {
	54	_ptr = new wxPyInputStream($source);
	55	}
	56	$target = wxPyConstructObject(_ptr, "wxInputStream", TRUE);
	57	}
	58
	59	//----------------------------------------------------------------------
	60
	61	%{ // C++
	62	// definitions of wxStringPtrList and wxPyInputStream
	63	#include <wx/listimpl.cpp>
	64	WX_DEFINE_LIST(wxStringPtrList);
	65
	66
	67	void wxPyInputStream::close() {
	68	/* do nothing */
	69	}
	70
	71	void wxPyInputStream::flush() {
	72	/do nothing/
	73	}
	74
	75	bool wxPyInputStream::eof() {
	76	if (wxi)
	77	return wxi->Eof();
	78	else
	79	return TRUE;
	80	}
	81
	82	wxPyInputStream::~wxPyInputStream() {
	83	/do nothing/
	84	}
	85
	86	wxString* wxPyInputStream::read(int size) {
	87	wxString* s = NULL;
	88	const int BUFSIZE = 1024;
	89
	90	// check if we have a real wxInputStream to work with
	91	if (!wxi) {
	92	PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream below");
	93	return NULL;
	94	}
	95
	96	if (size < 0) {
	97	// init buffers
	98	char * buf = new char[BUFSIZE];
	99	if (!buf) {
	100	PyErr_NoMemory();
	101	return NULL;
	102	}
	103
	104	s = new wxString();
	105	if (!s) {
	106	delete buf;
	107	PyErr_NoMemory();
	108	return NULL;
	109	}
	110
	111	// read until EOF
	112	wxPy_BEGIN_ALLOW_THREADS;
	113	while (! wxi->Eof()) {
	114	wxi->Read(buf, BUFSIZE);
	115	//*s += wxString(buf, wxi->LastRead());
	116	s->Append(buf, wxi->LastRead());
	117	}
	118	delete buf;
	119	wxPy_END_ALLOW_THREADS;
	120
	121	// error check
	122	if (wxi->LastError() == wxSTREAM_READ_ERROR) {
	123	delete s;
	124	PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
	125	return NULL;
	126	}
	127
	128	} else { // Read only size number of characters
	129	s = new wxString;
	130	if (!s) {
	131	PyErr_NoMemory();
	132	return NULL;
	133	}
	134
	135	// read size bytes
	136	wxPy_BEGIN_ALLOW_THREADS;
	137	wxi->Read(s->GetWriteBuf(size+1), size);
	138	s->UngetWriteBuf(wxi->LastRead());
	139	wxPy_END_ALLOW_THREADS;
	140
	141	// error check
	142	if (wxi->LastError() == wxSTREAM_READ_ERROR) {
	143	delete s;
	144	PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
	145	return NULL;
	146	}
	147	}
	148	return s;
	149	}
	150
	151
	152	wxString* wxPyInputStream::readline (int size) {
	153	// check if we have a real wxInputStream to work with
	154	if (!wxi) {
	155	PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream below");
	156	return NULL;
	157	}
	158
	159	// init buffer
	160	int i;
	161	char ch;
	162	wxString* s = new wxString;
	163	if (!s) {
	164	PyErr_NoMemory();
	165	return NULL;
	166	}
	167
	168	// read until \n or byte limit reached
	169	wxPy_BEGIN_ALLOW_THREADS;
	170	for (i=ch=0; (ch != '\n') && (!wxi->Eof()) && ((size < 0) \|\| (i < size)); i++) {
	171	*s += ch = wxi->GetC();
	172	}
	173	wxPy_END_ALLOW_THREADS;
	174
	175	// errorcheck
	176	if (wxi->LastError() == wxSTREAM_READ_ERROR) {
	177	delete s;
	178	PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
	179	return NULL;
	180	}
	181	return s;
	182	}
	183
	184
	185	wxStringPtrList* wxPyInputStream::readlines (int sizehint) {
	186	// check if we have a real wxInputStream to work with
	187	if (!wxi) {
	188	PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream below");
	189	return NULL;
	190	}
	191
	192	// init list
	193	wxStringPtrList* l = new wxStringPtrList();
	194	if (!l) {
	195	PyErr_NoMemory();
	196	return NULL;
	197	}
	198
	199	// read sizehint bytes or until EOF
	200	wxPy_BEGIN_ALLOW_THREADS;
	201	int i;
	202	for (i=0; (!wxi->Eof()) && ((sizehint < 0) \|\| (i < sizehint));) {
	203	wxString* s = readline();
	204	if (s == NULL) {
	205	l->DeleteContents(TRUE);
	206	l->Clear();
	207	return NULL;
	208	}
	209	l->Append(s);
	210	i = i + s->Length();
	211	}
	212	wxPy_END_ALLOW_THREADS;
	213
	214	// error check
	215	if (wxi->LastError() == wxSTREAM_READ_ERROR) {
	216	l->DeleteContents(TRUE);
	217	l->Clear();
	218	PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
	219	return NULL;
	220	}
	221	return l;
	222	}
	223
	224
	225	void wxPyInputStream::seek(int offset, int whence) {
	226	if (wxi)
	227	wxi->SeekI(offset, wxSeekMode(whence));
	228	}
	229
	230	int wxPyInputStream::tell(){
	231	if (wxi)
	232	return wxi->TellI();
	233	}
	234
	235
	236
	237	// wxInputStream which operates on a Python file-like object
	238	class wxPyCBInputStream : public wxInputStream {
	239	protected:
	240	PyObject* read;
	241	PyObject* seek;
	242	PyObject* tell;
	243	PyObject* py;
	244
	245	virtual size_t OnSysRead(void *buffer, size_t bufsize) {
	246	if (bufsize == 0)
	247	return 0;
	248
	249	wxPyTState* state = wxPyBeginBlockThreads();
	250	PyObject* arglist = Py_BuildValue("(i)", bufsize);
	251	PyObject* result = PyEval_CallObject(read, arglist);
	252	Py_DECREF(arglist);
	253
	254	size_t o = 0;
	255	if ((result != NULL) && PyString_Check(result)) {
	256	o = PyString_Size(result);
	257	if (o == 0)
	258	m_lasterror = wxSTREAM_EOF;
	259	if (o > bufsize)
	260	o = bufsize;
	261	strncpy((char*)buffer, PyString_AsString(result), o);
	262	Py_DECREF(result);
	263
	264	}
	265	else
	266	m_lasterror = wxSTREAM_READ_ERROR;
	267	wxPyEndBlockThreads(state);
	268	m_lastcount = o;
	269	return o;
	270	}
	271
	272	virtual size_t OnSysWrite(const void *buffer, size_t bufsize){
	273	m_lasterror = wxSTREAM_WRITE_ERROR;
	274	return 0;
	275	}
	276
	277	virtual off_t OnSysSeek(off_t off, wxSeekMode mode){
	278	wxPyTState* state = wxPyBeginBlockThreads();
	279	PyObject*arglist = Py_BuildValue("(ii)", off, mode);
	280	PyObject*result = PyEval_CallObject(seek, arglist);
	281	Py_DECREF(arglist);
	282	Py_XDECREF(result);
	283	wxPyEndBlockThreads(state);
	284	return OnSysTell();
	285	}
	286
	287	virtual off_t OnSysTell() const{
	288	wxPyTState* state = wxPyBeginBlockThreads();
	289	PyObject* arglist = Py_BuildValue("()");
	290	PyObject* result = PyEval_CallObject(tell, arglist);
	291	Py_DECREF(arglist);
	292	off_t o = 0;
	293	if (result != NULL) {
	294	o = PyInt_AsLong(result);
	295	Py_DECREF(result);
	296	};
	297	wxPyEndBlockThreads(state);
	298	return o;
	299	}
	300
	301	wxPyCBInputStream(PyObject p, PyObject r, PyObject s, PyObject t)
	302	: py(p), read(r), seek(s), tell(t)
	303	{}
	304
	305	public:
	306	~wxPyCBInputStream() {
	307	wxPyTState* state = wxPyBeginBlockThreads();
	308	Py_XDECREF(py);
	309	Py_XDECREF(read);
	310	Py_XDECREF(seek);
	311	Py_XDECREF(tell);
	312	wxPyEndBlockThreads(state);
	313	}
	314
	315	virtual size_t GetSize() {
	316	if (seek && tell) {
	317	off_t temp = OnSysTell();
	318	off_t ret = OnSysSeek(0, wxFromEnd);
	319	OnSysSeek(temp, wxFromStart);
	320	return ret;
	321	}
	322	else
	323	return 0;
	324	}
	325
	326	static wxPyCBInputStream* create(PyObject *py) {
	327	PyObject* read;
	328	PyObject* seek;
	329	PyObject* tell;
	330
	331	if (!PyInstance_Check(py) && !PyFile_Check(py)) {
	332	PyErr_SetString(PyExc_TypeError, "Not a file-like object");
	333	Py_XDECREF(py);
	334	return NULL;
	335	}
	336	read = getMethod(py, "read");
	337	seek = getMethod(py, "seek");
	338	tell = getMethod(py, "tell");
	339
	340	if (!read) {
	341	PyErr_SetString(PyExc_TypeError, "Not a file-like object");
	342	Py_XDECREF(py);
	343	Py_XDECREF(read);
	344	Py_XDECREF(seek);
	345	Py_XDECREF(tell);
	346	return NULL;
	347	}
	348	return new wxPyCBInputStream(py, read, seek, tell);
	349	}
	350
	351	static PyObject* getMethod(PyObject* py, char* name) {
	352	if (!PyObject_HasAttrString(py, name))
	353	return NULL;
	354	PyObject* o = PyObject_GetAttrString(py, name);
	355	if (!PyMethod_Check(o) && !PyCFunction_Check(o)) {
	356	Py_DECREF(o);
	357	return NULL;
	358	}
	359	return o;
	360	}
	361
	362	protected:
	363
	364	};
	365
	366	%} // End of the C++
	367	//----------------------------------------------------------------------
	368
	369
	370	// block threads for wxPyInputStream **** WHY?
	371	%except(python) {
	372	$function
	373	}
	374
	375
	376	// wxStringPtrList* to python list of strings typemap
	377	%typemap(python, out) wxStringPtrList* {
	378	if ($source) {
	379	$target = PyList_New($source->GetCount());
	380	wxStringPtrList::Node *node = $source->GetFirst();
	381	for (int i=0; node; i++) {
	382	wxString *s = node->GetData();
	383	PyList_SetItem($target, i, PyString_FromStringAndSize(s->c_str(), s->Len()));
	384	node = node->GetNext();
	385	delete s;
	386	}
	387	delete $source;
	388	}
	389	else
	390	$target=0;
	391	}
	392
	393
	394	// transport exceptions via %target=0
	395	%typemap(python, out) wxPyInputStream* {
	396	char _ptemp[128];
	397	if ($source) {
	398	SWIG_MakePtr(_ptemp, (char *) $source,"_wxPyInputStream_p");
	399	$target = Py_BuildValue("s",_ptemp);
	400	}
	401	else
	402	$target=0;
	403	}
	404
	405
	406	// transport exceptions via %target=0
	407	%typemap(python, out) wxString* {
	408	if ($source) {
	409	$target = PyString_FromStringAndSize($source->c_str(), $source->Len());
	410	delete $source;
	411	}
	412	else
	413	$target=0;
	414	}
	415
	416
	417
	418	%name(wxInputStream) class wxPyInputStream {
	419	public:
	420	%addmethods {
	421	wxPyInputStream(PyObject* p) {
	422	wxInputStream* wxi = wxPyCBInputStream::create(p);
	423	if (wxi)
	424	return new wxPyInputStream(wxi);
	425	else
	426	return NULL;
	427	}
	428	}
	429	void close();
	430	void flush();
	431	bool eof();
	432	wxString* read(int size=-1);
	433	wxString* readline(int size=-1);
	434	wxStringPtrList* readlines(int sizehint=-1);
	435	void seek(int offset, int whence=0);
	436	int tell();
	437	/*
	438	bool isatty();
	439	int fileno();
	440	void truncate(int size=-1);
	441	void write(wxString data);
	442	void writelines(wxStringPtrList);
	443	*/
	444	}
	445
	446
	447
	448	// TODO: make a more fully implemented file interface...
	449	class wxOutputStream {
	450	public:
	451	/*
	452	void close();
	453	void flush();
	454	wxString* read(int size=-1);
	455	wxString* readline(int size=-1);
	456	wxStringPtrList* readlines(int sizehint=-1);
	457	void seek(int offset, int whence=0);
	458	int tell();
	459	bool isatty();
	460	int fileno();
	461	void truncate(int size=-1);
	462	void write(wxString data);
	463	void writelines(wxStringPtrList);
	464	*/
	465
	466	%addmethods {
	467	void write(const wxString& str) {
	468	self->Write(str.c_str(), str.Length());
	469	}
	470	}
	471	};
	472
	473
	474	// restore except and typemaps
	475	%typemap(python,out) wxStringPtrList*;
	476	%typemap(python,out) wxPyInputStream*;
	477	%typemap(python, out) wxString* {
	478	$target = PyString_FromStringAndSize($source->c_str(), $source->Len());
	479	}
	480	%except(python) {
	481	wxPy_BEGIN_ALLOW_THREADS;
	482	$function
	483	wxPy_END_ALLOW_THREADS;
	484	}
	485
	486
	487	//----------------------------------------------------------------------
	488
	489	%init %{
	490	wxPyPtrTypeMap_Add("wxInputStream", "wxPyInputStream");
	491	%}
	492
	493	//----------------------------------------------------------------------