]> git.saurik.com Git - wxWidgets.git/blobdiff - wxPython/src/helpers.cpp
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[wxWidgets.git] / wxPython / src / helpers.cpp
index 483442eb46d42bbfe74014e77973457520381ef7..bc9dab80718d2c307b2521ef10f7ace055eb31e8 100644 (file)
 // Licence:     wxWindows license
 /////////////////////////////////////////////////////////////////////////////
 
-#include <stdio.h>  // get the correct definition of NULL
 
 #undef DEBUG
 #include <Python.h>
 #include "helpers.h"
+#include "pyistream.h"
 
 #ifdef __WXMSW__
 #include <wx/msw/private.h>
 #include <wx/msw/winundef.h>
+#include <wx/msw/msvcrt.h>
 #endif
 
 #ifdef __WXGTK__
 #include <wx/gtk/win_gtk.h>
 #endif
 
+//----------------------------------------------------------------------
+
+#if PYTHON_API_VERSION <= 1007 && wxUSE_UNICODE
+#error Python must support Unicode to use wxWindows Unicode
+#endif
+
+//----------------------------------------------------------------------
 
+#ifdef __WXGTK__
+int  WXDLLEXPORT wxEntryStart( int& argc, char** argv );
+#else
+int  WXDLLEXPORT wxEntryStart( int argc, char** argv );
+#endif
+int  WXDLLEXPORT wxEntryInitGui();
+void WXDLLEXPORT wxEntryCleanup();
+
+wxPyApp* wxPythonApp = NULL;  // Global instance of application object
+bool wxPyDoCleanup = FALSE;
+
+
+#ifdef WXP_WITH_THREAD
+struct wxPyThreadState {
+    unsigned long  tid;
+    PyThreadState* tstate;
+
+    wxPyThreadState(unsigned long _tid=0, PyThreadState* _tstate=NULL)
+        : tid(_tid), tstate(_tstate) {}
+};
+
+#include <wx/dynarray.h>
+WX_DECLARE_OBJARRAY(wxPyThreadState, wxPyThreadStateArray);
+#include <wx/arrimpl.cpp>
+WX_DEFINE_OBJARRAY(wxPyThreadStateArray);
+
+wxPyThreadStateArray* wxPyTStates = NULL;
+wxMutex*              wxPyTMutex = NULL;
+#endif
 
 
 #ifdef __WXMSW__             // If building for win32...
@@ -41,66 +78,91 @@ BOOL WINAPI DllMain(
     LPVOID      lpvReserved  // reserved
    )
 {
-    wxSetInstance(hinstDLL);
-    return 1;
+    // If wxPython is embedded in another wxWindows app then
+    // the inatance has already been set.
+    if (! wxGetInstance())
+        wxSetInstance(hinstDLL);
+    return TRUE;
 }
 #endif
 
 //----------------------------------------------------------------------
-// Class for implementing the wxp main application shell.
+// Classes for implementing the wxp main application shell.
 //----------------------------------------------------------------------
 
-wxPyApp *wxPythonApp = NULL;            // Global instance of application object
-
 
 wxPyApp::wxPyApp() {
-//    printf("**** ctor\n");
+    SetUseBestVisual(TRUE);
 }
 
 wxPyApp::~wxPyApp() {
-//    printf("**** dtor\n");
 }
 
 
 // This one isn't acutally called...  See __wxStart()
-bool wxPyApp::OnInit(void) {
+bool wxPyApp::OnInit() {
     return FALSE;
 }
 
-int  wxPyApp::MainLoop(void) {
+
+int  wxPyApp::MainLoop() {
     int retval = 0;
 
     DeletePendingObjects();
+    bool initialized = wxTopLevelWindows.GetCount() != 0;
 #ifdef __WXGTK__
-    m_initialized = wxTopLevelWindows.GetCount() != 0;
+    m_initialized = initialized;
 #endif
 
-    if (Initialized()) {
+    if (initialized) {
         retval = wxApp::MainLoop();
-        wxPythonApp->OnExit();
+        OnExit();
     }
     return retval;
 }
 
 
+
 //---------------------------------------------------------------------
 //----------------------------------------------------------------------
 
-#ifdef __WXMSW__
-#include "wx/msw/msvcrt.h"
-#endif
 
+static char* wxPyCopyCString(const wxChar* src)
+{
+    wxWX2MBbuf buff = (wxWX2MBbuf)wxConvCurrent->cWX2MB(src);
+    size_t len = strlen(buff);
+    char*  dest = new char[len+1];
+    strcpy(dest, buff);
+    return dest;
+}
 
-int  WXDLLEXPORT wxEntryStart( int argc, char** argv );
-int  WXDLLEXPORT wxEntryInitGui();
-void WXDLLEXPORT wxEntryCleanup();
+#if wxUSE_UNICODE
+static char* wxPyCopyCString(const char* src)   // we need a char version too
+{
+    size_t len = strlen(src);
+    char*  dest = new char[len+1];
+    strcpy(dest, src);
+    return dest;
+}
+#endif
 
+static wxChar* wxPyCopyWString(const char *src)
+{
+    //wxMB2WXbuf buff = wxConvCurrent->cMB2WX(src);
+    wxString str(src, *wxConvCurrent);
+    return copystring(str);
+}
 
-#ifdef WXP_WITH_THREAD
-PyInterpreterState* wxPyInterpreter = NULL;
+#if wxUSE_UNICODE
+static wxChar* wxPyCopyWString(const wxChar *src)
+{
+    return copystring(src);
+}
 #endif
 
 
+//----------------------------------------------------------------------
+
 // This is where we pick up the first part of the wxEntry functionality...
 // The rest is in __wxStart and  __wxCleanup.  This function is called when
 // wxcmodule is imported.  (Before there is a wxApp object.)
@@ -113,15 +175,19 @@ void __wxPreStart()
 
 #ifdef WXP_WITH_THREAD
     PyEval_InitThreads();
-    wxPyInterpreter = PyThreadState_Get()->interp;
+    wxPyTStates = new wxPyThreadStateArray;
+    wxPyTMutex = new wxMutex;
 #endif
 
-    // Bail out if there is already windows created.  This means that the
+    wxApp::CheckBuildOptions(wxBuildOptions());
+
+    // Bail out if there is already a wxApp created.  This means that the
     // toolkit has already been initialized, as in embedding wxPython in
-    // a C++ wxWindows app.
-    if (wxTopLevelWindows.Number() > 0)
+    // a C++ wxWindows app, so we don't need to call wxEntryStart.
+    if (wxTheApp != NULL) {
         return;
-
+    }
+    wxPyDoCleanup = TRUE;
 
     int argc = 0;
     char** argv = NULL;
@@ -130,8 +196,15 @@ void __wxPreStart()
         argc = PyList_Size(sysargv);
         argv = new char*[argc+1];
         int x;
-        for(x=0; x<argc; x++)
-            argv[x] = copystring(PyString_AsString(PyList_GetItem(sysargv, x)));
+        for(x=0; x<argc; x++) {
+           PyObject *item = PyList_GetItem(sysargv, x);
+#if wxUSE_UNICODE
+           if (PyUnicode_Check(item))
+               argv[x] = wxPyCopyCString(PyUnicode_AS_UNICODE(item));
+            else
+#endif
+                argv[x] = wxPyCopyCString(PyString_AsString(item));
+       }
         argv[argc] = NULL;
     }
 
@@ -152,25 +225,26 @@ PyObject* __wxStart(PyObject* /* self */, PyObject* args)
     if (!PyArg_ParseTuple(args, "O", &onInitFunc))
         return NULL;
 
-#if 0  // Try it out without this check, see how it does...
-    if (wxTopLevelWindows.Number() > 0) {
-        PyErr_SetString(PyExc_TypeError, "Only 1 wxApp per process!");
-        return NULL;
-    }
-#endif
-
     // This is the next part of the wxEntry functionality...
     int argc = 0;
-    char** argv = NULL;
+    wxChar** argv = NULL;
     PyObject* sysargv = PySys_GetObject("argv");
     if (sysargv != NULL) {
         argc = PyList_Size(sysargv);
-        argv = new char*[argc+1];
+        argv = new wxChar*[argc+1];
         int x;
-        for(x=0; x<argc; x++)
-            argv[x] = copystring(PyString_AsString(PyList_GetItem(sysargv, x)));
+        for(x=0; x<argc; x++) {
+            PyObject *pyArg = PyList_GetItem(sysargv, x);
+#if wxUSE_UNICODE
+            if (PyUnicode_Check(pyArg))
+                argv[x] = wxPyCopyWString(PyUnicode_AS_UNICODE(pyArg));
+            else
+#endif
+                argv[x] = wxPyCopyWString(PyString_AsString(pyArg));
+        }
         argv[argc] = NULL;
     }
+
     wxPythonApp->argc = argc;
     wxPythonApp->argv = argv;
 
@@ -201,8 +275,17 @@ PyObject* __wxStart(PyObject* /* self */, PyObject* args)
     return Py_None;
 }
 
+
 void __wxCleanup() {
-    wxEntryCleanup();
+    if (wxPyDoCleanup)
+        wxEntryCleanup();
+#ifdef WXP_WITH_THREAD
+    delete wxPyTMutex;
+    wxPyTMutex = NULL;
+    wxPyTStates->Empty();
+    delete wxPyTStates;
+    wxPyTStates = NULL;
+#endif
 }
 
 
@@ -210,6 +293,7 @@ void __wxCleanup() {
 static PyObject* wxPython_dict = NULL;
 static PyObject* wxPyPtrTypeMap = NULL;
 
+
 PyObject* __wxSetDictionary(PyObject* /* self */, PyObject* args)
 {
 
@@ -229,8 +313,8 @@ PyObject* __wxSetDictionary(PyObject* /* self */, PyObject* args)
 #ifdef __WXMOTIF__
 #define wxPlatform "__WXMOTIF__"
 #endif
-#ifdef __WXQT__
-#define wxPlatform "__WXQT__"
+#ifdef __WXX11__
+#define wxPlatform "__WXX11__"
 #endif
 #ifdef __WXGTK__
 #define wxPlatform "__WXGTK__"
@@ -243,11 +327,58 @@ PyObject* __wxSetDictionary(PyObject* /* self */, PyObject* args)
 #endif
 
     PyDict_SetItemString(wxPython_dict, "wxPlatform", PyString_FromString(wxPlatform));
+    PyDict_SetItemString(wxPython_dict, "wxUSE_UNICODE", PyInt_FromLong(wxUSE_UNICODE));
 
     Py_INCREF(Py_None);
     return Py_None;
 }
 
+//---------------------------------------------------------------------------
+
+void wxPyClientData_dtor(wxPyClientData* self) {
+    wxPyBeginBlockThreads();
+    Py_DECREF(self->m_obj);
+    wxPyEndBlockThreads();
+}
+
+void wxPyUserData_dtor(wxPyUserData* self) {
+    wxPyBeginBlockThreads();
+    Py_DECREF(self->m_obj);
+    wxPyEndBlockThreads();
+}
+
+
+// This is called when an OOR controled object is being destroyed.  Although
+// the C++ object is going away there is no way to force the Python object
+// (and all references to it) to die too.  This causes problems (crashes) in
+// wxPython when a python shadow object attempts to call a C++ method using
+// the now bogus pointer... So to try and prevent this we'll do a little black
+// magic and change the class of the python instance to a class that will
+// raise an exception for any attempt to call methods with it.  See
+// _wxPyDeadObject in _extras.py for the implementation of this class.
+void wxPyOORClientData_dtor(wxPyOORClientData* self) {
+
+    static PyObject* deadObjectClass = NULL;
+
+    wxPyBeginBlockThreads();
+    if (deadObjectClass == NULL) {
+        deadObjectClass = PyDict_GetItemString(wxPython_dict, "_wxPyDeadObject");
+        wxASSERT_MSG(deadObjectClass != NULL, wxT("Can't get _wxPyDeadObject class!"));
+        Py_INCREF(deadObjectClass);
+    }
+
+    // Clear the instance's dictionary, put the name of the old class into the
+    // instance, and then reset the class to be the dead class.
+    if (self->m_obj->ob_refcnt > 1) {  // but only if there is more than one reference
+        wxASSERT_MSG(PyInstance_Check(self->m_obj), wxT("m_obj not an instance!?!?!"));
+        PyInstanceObject* inst = (PyInstanceObject*)self->m_obj;
+        PyDict_Clear(inst->in_dict);
+        PyDict_SetItemString(inst->in_dict, "_name", inst->in_class->cl_name);
+        inst->in_class = (PyClassObject*)deadObjectClass;
+        Py_INCREF(deadObjectClass);
+    }
+    wxPyEndBlockThreads();
+}
 
 //---------------------------------------------------------------------------
 // Stuff used by OOR to find the right wxPython class type to return and to
@@ -258,10 +389,10 @@ PyObject* __wxSetDictionary(PyObject* /* self */, PyObject* args)
 // is not the same as the shadow class name, for example wxPyTreeCtrl
 // vs. wxTreeCtrl.  It needs to be referenced in Python as well as from C++,
 // so we'll just make it a Python dictionary in the wx module's namespace.
+// (See __wxSetDictionary)
 void wxPyPtrTypeMap_Add(const char* commonName, const char* ptrName) {
     if (! wxPyPtrTypeMap)
         wxPyPtrTypeMap = PyDict_New();
-
     PyDict_SetItemString(wxPyPtrTypeMap,
                          (char*)commonName,
                          PyString_FromString((char*)ptrName));
@@ -269,14 +400,14 @@ void wxPyPtrTypeMap_Add(const char* commonName, const char* ptrName) {
 
 
 
-PyObject* wxPyClassExists(const char* className) {
+PyObject* wxPyClassExists(const wxString& className) {
 
     if (!className)
         return NULL;
 
     char    buff[64];               // should always be big enough...
 
-    sprintf(buff, "%sPtr", className);
+    sprintf(buff, "%sPtr", className.mbc_str());
     PyObject* classobj = PyDict_GetItemString(wxPython_dict, buff);
 
     return classobj;  // returns NULL if not found
@@ -294,7 +425,7 @@ PyObject*  wxPyMake_wxObject(wxObject* source, bool checkEvtHandler) {
         if (checkEvtHandler && wxIsKindOf(source, wxEvtHandler)) {
             isEvtHandler = TRUE;
             wxEvtHandler* eh = (wxEvtHandler*)source;
-            wxPyClientData* data = (wxPyClientData*)eh->GetClientObject();
+            wxPyOORClientData* data = (wxPyOORClientData*)eh->GetClientObject();
             if (data) {
                 target = data->m_obj;
                 Py_INCREF(target);
@@ -315,11 +446,11 @@ PyObject*  wxPyMake_wxObject(wxObject* source, bool checkEvtHandler) {
             if (info) {
                 target = wxPyConstructObject(source, name, klass, FALSE);
                 if (target && isEvtHandler)
-                    ((wxEvtHandler*)source)->SetClientObject(new wxPyClientData(target));
+                    ((wxEvtHandler*)source)->SetClientObject(new wxPyOORClientData(target));
             } else {
-                wxString msg("wxPython class not found for ");
+                wxString msg(wxT("wxPython class not found for "));
                 msg += source->GetClassInfo()->GetClassName();
-                PyErr_SetString(PyExc_NameError, msg.c_str());
+                PyErr_SetString(PyExc_NameError, msg.mbc_str());
                 target = NULL;
             }
         }
@@ -338,7 +469,7 @@ PyObject*  wxPyMake_wxSizer(wxSizer* source) {
         // already be a pointer to a Python object that we can use
         // in the OOR data.
         wxSizer* sz = (wxSizer*)source;
-        wxPyClientData* data = (wxPyClientData*)sz->GetClientObject();
+        wxPyOORClientData* data = (wxPyOORClientData*)sz->GetClientObject();
         if (data) {
             target = data->m_obj;
             Py_INCREF(target);
@@ -347,7 +478,7 @@ PyObject*  wxPyMake_wxSizer(wxSizer* source) {
     if (! target) {
         target = wxPyMake_wxObject(source, FALSE);
         if (target != Py_None)
-            ((wxSizer*)source)->SetClientObject(new wxPyClientData(target));
+            ((wxSizer*)source)->SetClientObject(new wxPyOORClientData(target));
     }
     return target;
 }
@@ -357,20 +488,21 @@ PyObject*  wxPyMake_wxSizer(wxSizer* source) {
 //---------------------------------------------------------------------------
 
 PyObject* wxPyConstructObject(void* ptr,
-                              const char* className,
+                              const wxString& className,
                               PyObject* klass,
                               int setThisOwn) {
 
     PyObject* obj;
     PyObject* arg;
     PyObject* item;
+    wxString  name(className);
     char      swigptr[64];      // should always be big enough...
     char      buff[64];
 
-    if ((item = PyDict_GetItemString(wxPyPtrTypeMap, (char*)className)) != NULL) {
-        className = PyString_AsString(item);
+    if ((item = PyDict_GetItemString(wxPyPtrTypeMap, (char*)(const char*)name.mbc_str())) != NULL) {
+        name = wxString(PyString_AsString(item), *wxConvCurrent);
     }
-    sprintf(buff, "_%s_p", className);
+    sprintf(buff, "_%s_p", (const char*)name.mbc_str());
     SWIG_MakePtr(swigptr, ptr, buff);
 
     arg = Py_BuildValue("(s)", swigptr);
@@ -388,64 +520,386 @@ PyObject* wxPyConstructObject(void* ptr,
 
 
 PyObject* wxPyConstructObject(void* ptr,
-                              const char* className,
+                              const wxString& className,
                               int setThisOwn) {
-    PyObject* obj;
-
     if (!ptr) {
         Py_INCREF(Py_None);
         return Py_None;
     }
 
     char    buff[64];               // should always be big enough...
-    sprintf(buff, "%sPtr", className);
+    sprintf(buff, "%sPtr", (const char*)className.mbc_str());
 
-        wxASSERT_MSG(wxPython_dict, "wxPython_dict is not set yet!!");
+    wxASSERT_MSG(wxPython_dict, wxT("wxPython_dict is not set yet!!"));
 
     PyObject* classobj = PyDict_GetItemString(wxPython_dict, buff);
     if (! classobj) {
-        char temp[128];
-        sprintf(temp,
-                "*** Unknown class name %s, tell Robin about it please ***",
-                buff);
-        obj = PyString_FromString(temp);
-        return obj;
+        wxString msg(wxT("wxPython class not found for "));
+        msg += className;
+        PyErr_SetString(PyExc_NameError, msg.mbc_str());
+        return NULL;
     }
 
     return wxPyConstructObject(ptr, className, classobj, setThisOwn);
 }
 
+
 //---------------------------------------------------------------------------
 
 
-wxPyTState* wxPyBeginBlockThreads() {
-    wxPyTState* state = NULL;
 #ifdef WXP_WITH_THREAD
-    if (1) {   // Can I check if I've already got the lock?
-        state = new wxPyTState;
-        PyEval_AcquireLock();
-        state->newState = PyThreadState_New(wxPyInterpreter);
-        state->prevState = PyThreadState_Swap(state->newState);
+inline
+unsigned long wxPyGetCurrentThreadId() {
+    return wxThread::GetCurrentId();
+}
+
+static PyThreadState* gs_shutdownTState;
+static
+PyThreadState* wxPyGetThreadState() {
+    if (wxPyTMutex == NULL) // Python is shutting down...
+        return gs_shutdownTState;
+
+    unsigned long ctid = wxPyGetCurrentThreadId();
+    PyThreadState* tstate = NULL;
+
+    wxPyTMutex->Lock();
+    for(size_t i=0; i < wxPyTStates->GetCount(); i++) {
+        wxPyThreadState& info = wxPyTStates->Item(i);
+        if (info.tid == ctid) {
+            tstate = info.tstate;
+            break;
+        }
+    }
+    wxPyTMutex->Unlock();
+    wxASSERT_MSG(tstate, wxT("PyThreadState should not be NULL!"));
+    return tstate;
+}
+
+static
+void wxPySaveThreadState(PyThreadState* tstate) {
+    if (wxPyTMutex == NULL) { // Python is shutting down, assume a single thread...
+        gs_shutdownTState = tstate;
+        return;
     }
+    unsigned long ctid = wxPyGetCurrentThreadId();
+    wxPyTMutex->Lock();
+    for(size_t i=0; i < wxPyTStates->GetCount(); i++) {
+        wxPyThreadState& info = wxPyTStates->Item(i);
+        if (info.tid == ctid) {
+            info.tstate = tstate;
+            wxPyTMutex->Unlock();
+            return;
+        }
+    }
+    // not found, so add it...
+    wxPyTStates->Add(new wxPyThreadState(ctid, tstate));
+    wxPyTMutex->Unlock();
+}
+
+#endif
+
+
+// Calls from Python to wxWindows code are wrapped in calls to these
+// functions:
+
+PyThreadState* wxPyBeginAllowThreads() {
+#ifdef WXP_WITH_THREAD
+    PyThreadState* saved = PyEval_SaveThread();  // Py_BEGIN_ALLOW_THREADS;
+    wxPySaveThreadState(saved);
+    return saved;
+#else
+    return NULL;
+#endif
+}
+
+void wxPyEndAllowThreads(PyThreadState* saved) {
+#ifdef WXP_WITH_THREAD
+    PyEval_RestoreThread(saved);   // Py_END_ALLOW_THREADS;
 #endif
-    return state;
 }
 
 
-void wxPyEndBlockThreads(wxPyTState* state) {
+
+// Calls from wxWindows back to Python code, or even any PyObject
+// manipulations, PyDECREF's and etc. are wrapped in calls to these functions:
+
+void wxPyBeginBlockThreads() {
 #ifdef WXP_WITH_THREAD
-    if (state) {
-        PyThreadState_Swap(state->prevState);
-        PyThreadState_Clear(state->newState);
-        PyEval_ReleaseLock();
-        PyThreadState_Delete(state->newState);
-        delete state;
-    }
+    PyThreadState* tstate = wxPyGetThreadState();
+    PyEval_RestoreThread(tstate);
+#endif
+}
+
+
+void wxPyEndBlockThreads() {
+#ifdef WXP_WITH_THREAD
+    // Is there any need to save it again?
+    // PyThreadState* tstate =
+    PyEval_SaveThread();
 #endif
 }
 
 
 //---------------------------------------------------------------------------
+// wxPyInputStream and wxPyCBInputStream methods
+
+
+void wxPyInputStream::close() {
+    /* do nothing for now */
+}
+
+void wxPyInputStream::flush() {
+    /* do nothing for now */
+}
+
+bool wxPyInputStream::eof() {
+    if (m_wxis)
+        return m_wxis->Eof();
+    else
+        return TRUE;
+}
+
+wxPyInputStream::~wxPyInputStream() {
+    /* do nothing */
+}
+
+
+
+
+PyObject* wxPyInputStream::read(int size) {
+    PyObject* obj = NULL;
+    wxMemoryBuffer buf;
+    const int BUFSIZE = 1024;
+
+    // check if we have a real wxInputStream to work with
+    if (!m_wxis) {
+        PyErr_SetString(PyExc_IOError, "no valid C-wxInputStream");
+        return NULL;
+    }
+
+    if (size < 0) {
+        // read until EOF
+        while (! m_wxis->Eof()) {
+            m_wxis->Read(buf.GetAppendBuf(BUFSIZE), BUFSIZE);
+            buf.UngetAppendBuf(m_wxis->LastRead());
+        }
+
+    } else {  // Read only size number of characters
+        m_wxis->Read(buf.GetWriteBuf(size), size);
+        buf.UngetWriteBuf(m_wxis->LastRead());
+    }
+
+    // error check
+    if (m_wxis->LastError() == wxSTREAM_READ_ERROR) {
+        PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
+    }
+    else {
+        // We use only strings for the streams, not unicode
+        obj = PyString_FromStringAndSize(buf, buf.GetDataLen());
+    }
+    return obj;
+}
+
+
+PyObject* wxPyInputStream::readline(int size) {
+    PyObject* obj = NULL;
+    wxMemoryBuffer buf;
+    int i;
+    char ch;
+
+    // check if we have a real wxInputStream to work with
+    if (!m_wxis) {
+        PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream");
+        return NULL;
+    }
+
+    // read until \n or byte limit reached
+    for (i=ch=0; (ch != '\n') && (!m_wxis->Eof()) && ((size < 0) || (i < size)); i++) {
+        ch = m_wxis->GetC();
+        buf.AppendByte(ch);
+    }
+
+    // errorcheck
+    if (m_wxis->LastError() == wxSTREAM_READ_ERROR) {
+        PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
+    }
+    else {
+        // We use only strings for the streams, not unicode
+        obj = PyString_FromStringAndSize((char*)buf.GetData(), buf.GetDataLen());
+    }
+    return obj;
+}
+
+
+PyObject* wxPyInputStream::readlines(int sizehint) {
+    PyObject* pylist;
+
+    // check if we have a real wxInputStream to work with
+    if (!m_wxis) {
+        PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream below");
+        return NULL;
+    }
+
+    // init list
+    pylist = PyList_New(0);
+    if (!pylist) {
+        PyErr_NoMemory();
+        return NULL;
+    }
+
+    // read sizehint bytes or until EOF
+    int i;
+    for (i=0; (!m_wxis->Eof()) && ((sizehint < 0) || (i < sizehint));) {
+        PyObject* s = this->readline();
+        if (s == NULL) {
+            Py_DECREF(pylist);
+            return NULL;
+        }
+        PyList_Append(pylist, s);
+        i += PyString_Size(s);
+    }
+
+    // error check
+    if (m_wxis->LastError() == wxSTREAM_READ_ERROR) {
+        Py_DECREF(pylist);
+        PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
+        return NULL;
+    }
+
+    return pylist;
+}
+
+
+void wxPyInputStream::seek(int offset, int whence) {
+    if (m_wxis)
+        m_wxis->SeekI(offset, wxSeekMode(whence));
+}
+
+int wxPyInputStream::tell(){
+    if (m_wxis)
+        return m_wxis->TellI();
+    else return 0;
+}
+
+
+
+
+wxPyCBInputStream::wxPyCBInputStream(PyObject *r, PyObject *s, PyObject *t, bool block)
+    : wxInputStream(), m_read(r), m_seek(s), m_tell(t), m_block(block)
+{}
+
+
+wxPyCBInputStream::~wxPyCBInputStream() {
+    if (m_block) wxPyBeginBlockThreads();
+    Py_XDECREF(m_read);
+    Py_XDECREF(m_seek);
+    Py_XDECREF(m_tell);
+    if (m_block) wxPyEndBlockThreads();
+}
+
+
+wxPyCBInputStream* wxPyCBInputStream::create(PyObject *py, bool block) {
+    if (block) wxPyBeginBlockThreads();
+
+    PyObject* read = getMethod(py, "read");
+    PyObject* seek = getMethod(py, "seek");
+    PyObject* tell = getMethod(py, "tell");
+
+    if (!read) {
+        PyErr_SetString(PyExc_TypeError, "Not a file-like object");
+        Py_XDECREF(read);
+        Py_XDECREF(seek);
+        Py_XDECREF(tell);
+        if (block) wxPyEndBlockThreads();
+        return NULL;
+    }
+
+    if (block) wxPyEndBlockThreads();
+    return new wxPyCBInputStream(read, seek, tell, block);
+}
+
+PyObject* wxPyCBInputStream::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;
+}
+
+
+size_t wxPyCBInputStream::GetSize() const {
+    wxPyCBInputStream* self = (wxPyCBInputStream*)this; // cast off const
+    if (m_seek && m_tell) {
+        off_t temp = self->OnSysTell();
+        off_t ret = self->OnSysSeek(0, wxFromEnd);
+        self->OnSysSeek(temp, wxFromStart);
+        return ret;
+    }
+    else
+        return 0;
+}
+
+
+size_t wxPyCBInputStream::OnSysRead(void *buffer, size_t bufsize) {
+    if (bufsize == 0)
+        return 0;
+
+    wxPyBeginBlockThreads();
+    PyObject* arglist = Py_BuildValue("(i)", bufsize);
+    PyObject* result = PyEval_CallObject(m_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;
+        memcpy((char*)buffer, PyString_AsString(result), o);  // strings only, not unicode...
+        Py_DECREF(result);
+
+    }
+    else
+        m_lasterror = wxSTREAM_READ_ERROR;
+    wxPyEndBlockThreads();
+    m_lastcount = o;
+    return o;
+}
+
+size_t wxPyCBInputStream::OnSysWrite(const void *buffer, size_t bufsize) {
+    m_lasterror = wxSTREAM_WRITE_ERROR;
+    return 0;
+}
+
+off_t wxPyCBInputStream::OnSysSeek(off_t off, wxSeekMode mode) {
+    wxPyBeginBlockThreads();
+    PyObject* arglist = Py_BuildValue("(ii)", off, mode);
+    PyObject* result = PyEval_CallObject(m_seek, arglist);
+    Py_DECREF(arglist);
+    Py_XDECREF(result);
+    wxPyEndBlockThreads();
+    return OnSysTell();
+}
+
+off_t wxPyCBInputStream::OnSysTell() const {
+    wxPyBeginBlockThreads();
+    PyObject* arglist = Py_BuildValue("()");
+    PyObject* result = PyEval_CallObject(m_tell, arglist);
+    Py_DECREF(arglist);
+    off_t o = 0;
+    if (result != NULL) {
+        o = PyInt_AsLong(result);
+        Py_DECREF(result);
+    };
+    wxPyEndBlockThreads();
+    return o;
+}
+
+//----------------------------------------------------------------------
 
 IMPLEMENT_ABSTRACT_CLASS(wxPyCallback, wxObject);
 
@@ -460,9 +914,9 @@ wxPyCallback::wxPyCallback(const wxPyCallback& other) {
 }
 
 wxPyCallback::~wxPyCallback() {
-    wxPyTState* state = wxPyBeginBlockThreads();
+    wxPyBeginBlockThreads();
     Py_DECREF(m_func);
-    wxPyEndBlockThreads(state);
+    wxPyEndBlockThreads();
 }
 
 
@@ -476,15 +930,16 @@ void wxPyCallback::EventThunker(wxEvent& event) {
     PyObject*       tuple;
 
 
-    wxPyTState* state = wxPyBeginBlockThreads();
+    wxPyBeginBlockThreads();
     wxString className = event.GetClassInfo()->GetClassName();
 
     if (className == "wxPyEvent")
         arg = ((wxPyEvent*)&event)->GetSelf();
     else if (className == "wxPyCommandEvent")
         arg = ((wxPyCommandEvent*)&event)->GetSelf();
-    else
+    else {
         arg = wxPyConstructObject((void*)&event, className);
+    }
 
     tuple = PyTuple_New(1);
     PyTuple_SET_ITEM(tuple, 0, arg);
@@ -496,7 +951,7 @@ void wxPyCallback::EventThunker(wxEvent& event) {
     } else {
         PyErr_Print();
     }
-    wxPyEndBlockThreads(state);
+    wxPyEndBlockThreads();
 }
 
 
@@ -529,11 +984,11 @@ void wxPyCallbackHelper::setSelf(PyObject* self, PyObject* klass, int incref) {
 // Prior to Python 2.2 PyMethod_GetClass returned the class object
 // in which the method was defined.  Starting with 2.2 it returns
 // "class that asked for the method" which seems totally bogus to me
-// but apprently if fixes some obscure problem waiting to happen in
+// but apprently it fixes some obscure problem waiting to happen in
 // Python.  Since the API was not documented Guido and the gang felt
 // safe in changing it.  Needless to say that totally screwed up the
 // logic below in wxPyCallbackHelper::findCallback, hence this icky
-// code to find the class where the method is actuallt defined...
+// code to find the class where the method is actually defined...
 
 static
 PyObject* PyFindClassWithAttr(PyObject *klass, PyObject *name)
@@ -542,6 +997,7 @@ PyObject* PyFindClassWithAttr(PyObject *klass, PyObject *name)
 
     if (PyType_Check(klass)) {      // new style classes
         // This code is borrowed/adapted from _PyType_Lookup in typeobject.c
+        // (TODO: This part is not tested yet, so I'm not sure it is correct...)
         PyTypeObject* type = (PyTypeObject*)klass;
         PyObject *mro, *res, *base, *dict;
         /* Look in tp_dict of types in MRO */
@@ -559,7 +1015,7 @@ PyObject* PyFindClassWithAttr(PyObject *klass, PyObject *name)
             assert(dict && PyDict_Check(dict));
             res = PyDict_GetItem(dict, name);
             if (res != NULL)
-                return res;
+                return base;
         }
         return NULL;
     }
@@ -580,6 +1036,7 @@ PyObject* PyFindClassWithAttr(PyObject *klass, PyObject *name)
         }
         return NULL;
     }
+    return NULL;
 }
 #endif
 
@@ -680,10 +1137,10 @@ PyObject* wxPyCBH_callCallbackObj(const wxPyCallbackHelper& cbh, PyObject* argTu
 
 void wxPyCBH_delete(wxPyCallbackHelper* cbh) {
     if (cbh->m_incRef) {
-        wxPyTState* state = wxPyBeginBlockThreads();
+        wxPyBeginBlockThreads();
         Py_XDECREF(cbh->m_self);
         Py_XDECREF(cbh->m_class);
-        wxPyEndBlockThreads(state);
+        wxPyEndBlockThreads();
     }
 }
 
@@ -701,14 +1158,14 @@ wxPyEvtSelfRef::wxPyEvtSelfRef() {
 }
 
 wxPyEvtSelfRef::~wxPyEvtSelfRef() {
-    wxPyTState* state = wxPyBeginBlockThreads();
+    wxPyBeginBlockThreads();
     if (m_cloned)
         Py_DECREF(m_self);
-    wxPyEndBlockThreads(state);
+    wxPyEndBlockThreads();
 }
 
 void wxPyEvtSelfRef::SetSelf(PyObject* self, bool clone) {
-    wxPyTState* state = wxPyBeginBlockThreads();
+    wxPyBeginBlockThreads();
     if (m_cloned)
         Py_DECREF(m_self);
     m_self = self;
@@ -716,7 +1173,7 @@ void wxPyEvtSelfRef::SetSelf(PyObject* self, bool clone) {
         Py_INCREF(m_self);
         m_cloned = TRUE;
     }
-    wxPyEndBlockThreads(state);
+    wxPyEndBlockThreads();
 }
 
 PyObject* wxPyEvtSelfRef::GetSelf() const {
@@ -773,9 +1230,9 @@ wxPyTimer::wxPyTimer(PyObject* callback) {
 }
 
 wxPyTimer::~wxPyTimer() {
-    wxPyTState* state = wxPyBeginBlockThreads();
+    wxPyBeginBlockThreads();
     Py_DECREF(func);
-    wxPyEndBlockThreads(state);
+    wxPyEndBlockThreads();
 }
 
 void wxPyTimer::Notify() {
@@ -783,7 +1240,7 @@ void wxPyTimer::Notify() {
         wxTimer::Notify();
     }
     else {
-        wxPyTState* state = wxPyBeginBlockThreads();
+        wxPyBeginBlockThreads();
 
         PyObject*   result;
         PyObject*   args = Py_BuildValue("()");
@@ -797,7 +1254,7 @@ void wxPyTimer::Notify() {
             PyErr_Print();
         }
 
-        wxPyEndBlockThreads(state);
+        wxPyEndBlockThreads();
     }
 }
 
@@ -813,7 +1270,7 @@ PyObject* wxPy_ConvertList(wxListBase* list, const char* className) {
     wxObject*   wxObj;
     wxNode*     node = list->First();
 
-    wxPyTState* state = wxPyBeginBlockThreads();
+    wxPyBeginBlockThreads();
     pyList = PyList_New(0);
     while (node) {
         wxObj = node->Data();
@@ -821,7 +1278,7 @@ PyObject* wxPy_ConvertList(wxListBase* list, const char* className) {
         PyList_Append(pyList, pyObj);
         node = node->Next();
     }
-    wxPyEndBlockThreads(state);
+    wxPyEndBlockThreads();
     return pyList;
 }
 
@@ -846,7 +1303,108 @@ long wxPyGetWinHandle(wxWindow* win) {
 
 //----------------------------------------------------------------------
 // Some helper functions for typemaps in my_typemaps.i, so they won't be
-// included in every file...
+// included in every file over and over again...
+
+#if PYTHON_API_VERSION >= 1009
+    static char* wxStringErrorMsg = "String or Unicode type required";
+#else
+    static char* wxStringErrorMsg = "String type required";
+#endif
+
+
+wxString* wxString_in_helper(PyObject* source) {
+    wxString* target;
+#if PYTHON_API_VERSION >= 1009  // Have Python unicode API
+    if (!PyString_Check(source) && !PyUnicode_Check(source)) {
+        PyErr_SetString(PyExc_TypeError, wxStringErrorMsg);
+        return NULL;
+    }
+#if wxUSE_UNICODE
+    if (PyUnicode_Check(source)) {
+        target = new wxString(PyUnicode_AS_UNICODE(source));
+    } else {
+        // It is a string, get pointers to it and transform to unicode
+        char* tmpPtr; int tmpSize;
+        PyString_AsStringAndSize(source, &tmpPtr, &tmpSize);
+        target = new wxString(tmpPtr, *wxConvCurrent, tmpSize);
+    }
+#else
+    char* tmpPtr; int tmpSize;
+    if (PyString_AsStringAndSize(source, &tmpPtr, &tmpSize) == -1) {
+        PyErr_SetString(PyExc_TypeError, "Unable to convert string");
+        return NULL;
+    }
+    target = new wxString(tmpPtr, tmpSize);
+#endif // wxUSE_UNICODE
+
+#else  // No Python unicode API (1.5.2)
+    if (!PyString_Check(source)) {
+        PyErr_SetString(PyExc_TypeError, wxStringErrorMsg);
+        return NULL;
+    }
+    target = new wxString(PyString_AS_STRING(source), PyString_GET_SIZE(source));
+#endif
+    return target;
+}
+
+
+// Similar to above except doesn't use "new" and doesn't set an exception
+wxString Py2wxString(PyObject* source)
+{
+    wxString target;
+    bool     doDecRef = FALSE;
+
+#if PYTHON_API_VERSION >= 1009  // Have Python unicode API
+    if (!PyString_Check(source) && !PyUnicode_Check(source)) {
+        // Convert to String if not one already...  (TODO: Unicode too?)
+        source = PyObject_Str(source);
+        doDecRef = TRUE;
+    }
+
+#if wxUSE_UNICODE
+    if (PyUnicode_Check(source)) {
+        target = PyUnicode_AS_UNICODE(source);
+    } else {
+        // It is a string, get pointers to it and transform to unicode
+        char* tmpPtr; int tmpSize;
+        PyString_AsStringAndSize(source, &tmpPtr, &tmpSize);
+        target = wxString(tmpPtr, *wxConvCurrent, tmpSize);
+    }
+#else
+    char* tmpPtr; int tmpSize;
+    PyString_AsStringAndSize(source, &tmpPtr, &tmpSize);
+    target = wxString(tmpPtr, tmpSize);
+#endif // wxUSE_UNICODE
+
+#else  // No Python unicode API (1.5.2)
+    if (!PyString_Check(source)) {
+        // Convert to String if not one already...
+        source = PyObject_Str(source);
+        doDecRef = TRUE;
+    }
+    target = wxString(PyString_AS_STRING(source), PyString_GET_SIZE(source));
+#endif
+
+    if (doDecRef)
+        Py_DECREF(source);
+    return target;
+}
+
+
+// Make either a Python String or Unicode object, depending on build mode
+PyObject* wx2PyString(const wxString& src)
+{
+    PyObject* str;
+#if wxUSE_UNICODE
+    str = PyUnicode_FromUnicode(src.c_str(), src.Len());
+#else
+    str = PyString_FromStringAndSize(src.c_str(), src.Len());
+#endif
+    return str;
+}
+
+
+//----------------------------------------------------------------------
 
 
 byte* byte_LIST_helper(PyObject* source) {
@@ -1101,19 +1659,16 @@ wxString* wxString_LIST_helper(PyObject* source) {
             PyErr_SetString(PyExc_TypeError, "Expected a list of string or unicode objects.");
             return NULL;
         }
-
-        char* buff;
-        int   length;
-        if (PyString_AsStringAndSize(o, &buff, &length) == -1)
-            return NULL;
-        temp[x] = wxString(buff, length);
 #else
         if (! PyString_Check(o)) {
             PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
             return NULL;
         }
-        temp[x] = PyString_AsString(o);
 #endif
+
+        wxString* pStr = wxString_in_helper(o);
+        temp[x] = *pStr;
+        delete pStr;
     }
     return temp;
 }
@@ -1265,7 +1820,14 @@ bool wxSize_helper(PyObject* source, wxSize** obj) {
     else if (PySequence_Check(source) && PyObject_Length(source) == 2) {
         PyObject* o1 = PySequence_GetItem(source, 0);
         PyObject* o2 = PySequence_GetItem(source, 1);
+        if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
+            Py_DECREF(o1);
+            Py_DECREF(o2);
+            goto error;
+        }
         **obj = wxSize(PyInt_AsLong(o1), PyInt_AsLong(o2));
+        Py_DECREF(o1);
+        Py_DECREF(o2);
         return TRUE;
     }
 
@@ -1288,15 +1850,15 @@ bool wxPoint_helper(PyObject* source, wxPoint** obj) {
     if (PySequence_Check(source) && PySequence_Length(source) == 2) {
         PyObject* o1 = PySequence_GetItem(source, 0);
         PyObject* o2 = PySequence_GetItem(source, 1);
-                // This should really check for integers, not numbers -- but that would break code.
-                if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
-                        Py_DECREF(o1);
-                    Py_DECREF(o2);
-                        goto error;
-                }
-                **obj = wxPoint(PyInt_AsLong(o1), PyInt_AsLong(o2));
-                Py_DECREF(o1);
-                Py_DECREF(o2);
+        // This should really check for integers, not numbers -- but that would break code.
+        if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
+            Py_DECREF(o1);
+            Py_DECREF(o2);
+            goto error;
+        }
+        **obj = wxPoint(PyInt_AsLong(o1), PyInt_AsLong(o2));
+        Py_DECREF(o1);
+        Py_DECREF(o2);
         return TRUE;
     }
  error:
@@ -1320,7 +1882,14 @@ bool wxRealPoint_helper(PyObject* source, wxRealPoint** obj) {
     else if (PySequence_Check(source) && PyObject_Length(source) == 2) {
         PyObject* o1 = PySequence_GetItem(source, 0);
         PyObject* o2 = PySequence_GetItem(source, 1);
+        if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
+            Py_DECREF(o1);
+            Py_DECREF(o2);
+            goto error;
+        }
         **obj = wxRealPoint(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2));
+        Py_DECREF(o1);
+        Py_DECREF(o2);
         return TRUE;
     }
 
@@ -1348,8 +1917,20 @@ bool wxRect_helper(PyObject* source, wxRect** obj) {
         PyObject* o2 = PySequence_GetItem(source, 1);
         PyObject* o3 = PySequence_GetItem(source, 2);
         PyObject* o4 = PySequence_GetItem(source, 3);
+        if (!PyNumber_Check(o1) || !PyNumber_Check(o2) ||
+            !PyNumber_Check(o3) || !PyNumber_Check(o4)) {
+            Py_DECREF(o1);
+            Py_DECREF(o2);
+            Py_DECREF(o3);
+            Py_DECREF(o4);
+            goto error;
+        }
         **obj = wxRect(PyInt_AsLong(o1), PyInt_AsLong(o2),
-                     PyInt_AsLong(o3), PyInt_AsLong(o4));
+                       PyInt_AsLong(o3), PyInt_AsLong(o4));
+        Py_DECREF(o1);
+        Py_DECREF(o2);
+        Py_DECREF(o3);
+        Py_DECREF(o4);
         return TRUE;
     }
 
@@ -1372,12 +1953,14 @@ bool wxColour_helper(PyObject* source, wxColour** obj) {
     }
     // otherwise a string is expected
     else if (PyString_Check(source)) {
-        wxString spec = PyString_AS_STRING(source);
-        if (spec[0U] == '#' && spec.Length() == 7) {  // It's  #RRGGBB
-            char* junk;
-            int red   = strtol(spec.Mid(1,2), &junk, 16);
-            int green = strtol(spec.Mid(3,2), &junk, 16);
-            int blue  = strtol(spec.Mid(5,2), &junk, 16);
+        wxString spec(PyString_AS_STRING(source), *wxConvCurrent);
+        if (spec.GetChar(0) == '#' && spec.Length() == 7) {  // It's  #RRGGBB
+            long red, green, blue;
+            red = green = blue = 0;
+            spec.Mid(1,2).ToLong(&red,   16);
+            spec.Mid(3,2).ToLong(&green, 16);
+            spec.Mid(5,2).ToLong(&blue,  16);
+
             **obj = wxColour(red, green, blue);
             return TRUE;
         }
@@ -1388,7 +1971,9 @@ bool wxColour_helper(PyObject* source, wxColour** obj) {
     }
 
  error:
-    PyErr_SetString(PyExc_TypeError, "Expected a wxColour object or a string containing a colour name or '#RRGGBB'.");
+    PyErr_SetString(PyExc_TypeError,
+                    "Expected a wxColour object or a string containing a colour "
+                    "name or '#RRGGBB'.");
     return FALSE;
 }
 
@@ -1399,7 +1984,11 @@ PyObject* wxArrayString2PyList_helper(const wxArrayString& arr) {
 
     PyObject* list = PyList_New(0);
     for (size_t i=0; i < arr.GetCount(); i++) {
-        PyObject* str = PyString_FromString(arr[i].c_str());
+#if wxUSE_UNICODE
+        PyObject* str = PyUnicode_FromUnicode(arr[i].c_str(), arr[i].Len());
+#else
+       PyObject* str = PyString_FromStringAndSize(arr[i].c_str(), arr[i].Len());
+#endif
         PyList_Append(list, str);
         Py_DECREF(str);
     }
@@ -1407,6 +1996,18 @@ PyObject* wxArrayString2PyList_helper(const wxArrayString& arr) {
 }
 
 
+PyObject* wxArrayInt2PyList_helper(const wxArrayInt& arr) {
+
+    PyObject* list = PyList_New(0);
+    for (size_t i=0; i < arr.GetCount(); i++) {
+        PyObject* number = PyInt_FromLong(arr[i]);
+        PyList_Append(list, number);
+        Py_DECREF(number);
+    }
+    return list;
+}
+
+
 //----------------------------------------------------------------------
 //----------------------------------------------------------------------