#include <Python.h>
#include "wx/wxPython/wxPython_int.h"
#include "wx/wxPython/pyistream.h"
+#include "wx/wxPython/swigver.h"
#ifdef __WXMSW__
#include <wx/msw/private.h>
#include <gdk/gdkprivate.h>
#include <wx/gtk/win_gtk.h>
#define GetXWindow(wxwin) (wxwin)->m_wxwindow ? \
- GDK_WINDOW_XWINDOW(GTK_PIZZA((wxwin)->m_wxwindow)->bin_window) : \
- GDK_WINDOW_XWINDOW((wxwin)->m_widget->window)
+ GDK_WINDOW_XWINDOW(GTK_PIZZA((wxwin)->m_wxwindow)->bin_window) : \
+ GDK_WINDOW_XWINDOW((wxwin)->m_widget->window)
#include <locale.h>
#endif
}
+
+void wxPyApp::ExitMainLoop() {
+ bool found;
+ wxPyBlock_t blocked = wxPyBeginBlockThreads();
+ if ((found = wxPyCBH_findCallback(m_myInst, "ExitMainLoop")))
+ wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
+ wxPyEndBlockThreads(blocked);
+ if (! found)
+ wxApp::ExitMainLoop();
+}
+
+
#ifdef __WXDEBUG__
void wxPyApp::OnAssert(const wxChar *file,
int line,
PyObject* method = m_myInst.GetLastFound();
PyObject* argTuple = PyTuple_New(0);
retval = PyEval_CallObject(method, argTuple);
+ m_myInst.clearRecursionGuard(method);
Py_DECREF(argTuple);
Py_DECREF(method);
if (retval == NULL)
#else
_AddInfoString("wx-assertions-off");
#endif
-
+ _AddInfoString(wxPy_SWIG_VERSION);
+
#undef _AddInfoString
PyObject* PlatInfoTuple = PyList_AsTuple(PlatInfo);
}
-//---------------------------------------------------------------------------
-
-// Python's PyInstance_Check does not return True for instances of new-style
-// classes. This should get close enough for both new and old classes but I
-// should re-evaluate the need for doing instance checks...
-bool wxPyInstance_Check(PyObject* obj) {
- return PyObject_HasAttrString(obj, "__class__") != 0;
-}
-
-
-// This one checks if the object is an instance of a SWIG proxy class (it has
-// a .this attribute)
-bool wxPySwigInstance_Check(PyObject* obj) {
- return PyObject_HasAttrString(obj, "this") != 0;
-}
//---------------------------------------------------------------------------
static
-PyObject* PyMethod_GetDefiningClass(PyObject* method, const char* name)
+PyObject* PyMethod_GetDefiningClass(PyObject* method, PyObject* nameo)
{
PyObject* mgc = PyMethod_GET_CLASS(method);
#if PYTHON_API_VERSION <= 1010 // prior to Python 2.2, the easy way
return mgc;
#else // 2.2 and after, the hard way...
-
- PyObject* nameo = PyString_FromString(name);
- PyObject* klass = PyFindClassWithAttr(mgc, nameo);
- Py_DECREF(nameo);
- return klass;
+ return PyFindClassWithAttr(mgc, nameo);
#endif
}
+// To avoid recursion when an overridden virtual method wants to call the base
+// class version, temporarily set an attribute in the instance with the same
+// name as the method. Then the PyObject_GetAttr in the next findCallback
+// will return this attribute and the PyMethod_Check will fail.
+
+void wxPyCallbackHelper::setRecursionGuard(PyObject* method) const
+{
+ PyFunctionObject* func = (PyFunctionObject*)PyMethod_Function(method);
+ PyObject_SetAttr(m_self, func->func_name, Py_None);
+}
+
+void wxPyCallbackHelper::clearRecursionGuard(PyObject* method) const
+{
+ PyFunctionObject* func = (PyFunctionObject*)PyMethod_Function(method);
+ if (PyObject_HasAttr(m_self, func->func_name)) {
+ PyObject_DelAttr(m_self, func->func_name);
+ }
+}
+
+// bool wxPyCallbackHelper::hasRecursionGuard(PyObject* method) const
+// {
+// PyFunctionObject* func = (PyFunctionObject*)PyMethod_Function(method);
+// if (PyObject_HasAttr(m_self, func->func_name)) {
+// PyObject* attr = PyObject_GetAttr(m_self, func->func_name);
+// bool retval = (attr == Py_None);
+// Py_DECREF(attr);
+// return retval;
+// }
+// return false;
+// }
+
+
bool wxPyCallbackHelper::findCallback(const char* name) const {
wxPyCallbackHelper* self = (wxPyCallbackHelper*)this; // cast away const
+ PyObject *method, *klass;
+ PyObject* nameo = PyString_FromString(name);
self->m_lastFound = NULL;
// If the object (m_self) has an attibute of the given name...
- if (m_self && PyObject_HasAttrString(m_self, (char*)name)) {
- PyObject *method, *klass;
- method = PyObject_GetAttrString(m_self, (char*)name);
+ if (m_self && PyObject_HasAttr(m_self, nameo)) {
+ method = PyObject_GetAttr(m_self, nameo);
// ...and if that attribute is a method, and if that method's class is
- // not from a base class...
+ // not from the registered class or a base class...
if (PyMethod_Check(method) &&
- (klass = PyMethod_GetDefiningClass(method, (char*)name)) != NULL &&
- ((klass == m_class) || PyObject_IsSubclass(klass, m_class))) {
-
- // ...then we'll save a pointer to the method so callCallback can call it.
+ (klass = PyMethod_GetDefiningClass(method, nameo)) != NULL &&
+ (klass != m_class) &&
+ PyObject_IsSubclass(klass, m_class)) {
+
+ // ...then we'll save a pointer to the method so callCallback can
+ // call it. But first, set a recursion guard in case the
+ // overridden method wants to call the base class version.
+ setRecursionGuard(method);
self->m_lastFound = method;
}
else {
Py_DECREF(method);
}
}
+
+ Py_DECREF(nameo);
return m_lastFound != NULL;
}
PyObject* method = m_lastFound;
result = PyEval_CallObject(method, argTuple);
+ clearRecursionGuard(method);
+
Py_DECREF(argTuple);
Py_DECREF(method);
if (!result) {
}
+//----------------------------------------------------------------------
+// wxPyImageHandler methods
+//
+// TODO: Switch these to use wxPython's standard macros and helper classes
+// for calling callbacks.
+
+PyObject* wxPyImageHandler::m_DoCanRead_Name = NULL;
+PyObject* wxPyImageHandler::m_GetImageCount_Name = NULL;
+PyObject* wxPyImageHandler::m_LoadFile_Name = NULL;
+PyObject* wxPyImageHandler::m_SaveFile_Name = NULL;
+
+PyObject* wxPyImageHandler::py_InputStream(wxInputStream* stream) {
+ return wxPyConstructObject(new wxPyInputStream(stream),
+ wxT("wxPyInputStream"), 0);
+}
+
+PyObject* wxPyImageHandler::py_Image(wxImage* image) {
+ return wxPyConstructObject(image, wxT("wxImage"), 0);
+}
+
+PyObject* wxPyImageHandler::py_OutputStream(wxOutputStream* stream) {
+ return wxPyConstructObject(stream, wxT("wxOutputStream"), 0);
+}
+
+wxPyImageHandler::wxPyImageHandler():
+ m_self(NULL)
+{
+ if (!m_DoCanRead_Name) {
+ m_DoCanRead_Name = PyString_FromString("DoCanRead");
+ m_GetImageCount_Name = PyString_FromString("GetImageCount");
+ m_LoadFile_Name = PyString_FromString("LoadFile");
+ m_SaveFile_Name = PyString_FromString("SaveFile");
+ }
+}
+
+wxPyImageHandler::~wxPyImageHandler() {
+ if (m_self) {
+ Py_DECREF(m_self);
+ m_self = NULL;
+ }
+}
+
+void wxPyImageHandler::_SetSelf(PyObject *self) {
+ // should check here for isinstance(PyImageHandler) ??
+ m_self = self;
+ Py_INCREF(m_self);
+}
+
+bool wxPyImageHandler::DoCanRead(wxInputStream& stream) {
+ // check if our object has this method
+ wxPyBlock_t blocked = wxPyBeginBlockThreads();
+ if (!m_self || !PyObject_HasAttr(m_self, m_DoCanRead_Name)) {
+ wxPyEndBlockThreads(blocked);
+ return false;
+ }
+
+ PyObject* res = PyObject_CallMethodObjArgs(m_self, m_DoCanRead_Name,
+ py_InputStream(&stream), NULL);
+ bool retval = false;
+ if (res) {
+ retval = PyInt_AsLong(res);
+ Py_DECREF(res);
+ PyErr_Clear();
+ }
+ else
+ PyErr_Print();
+ wxPyEndBlockThreads(blocked);
+ return retval;
+}
+
+bool wxPyImageHandler::LoadFile( wxImage* image, wxInputStream& stream,
+ bool verbose, int index ) {
+ // check if our object has this method
+ wxPyBlock_t blocked = wxPyBeginBlockThreads();
+ if (!m_self || !PyObject_HasAttr(m_self, m_LoadFile_Name)) {
+ wxPyEndBlockThreads(blocked);
+ return false;
+ }
+ PyObject* res = PyObject_CallMethodObjArgs(m_self, m_LoadFile_Name,
+ py_Image(image),
+ py_InputStream(&stream),
+ PyInt_FromLong(verbose),
+ PyInt_FromLong(index),
+ NULL);
+ bool retval = false;
+ if (res) {
+ retval = PyInt_AsLong(res);
+ Py_DECREF(res);
+ PyErr_Clear();
+ } else
+ PyErr_Print();
+ wxPyEndBlockThreads(blocked);
+ return retval;
+}
+
+bool wxPyImageHandler::SaveFile( wxImage* image, wxOutputStream& stream,
+ bool verbose ) {
+ wxPyBlock_t blocked = wxPyBeginBlockThreads();
+ if (!m_self || !PyObject_HasAttr(m_self, m_SaveFile_Name)) {
+ wxPyEndBlockThreads(blocked);
+ return false;
+ }
+ PyObject* res = PyObject_CallMethodObjArgs(m_self, m_SaveFile_Name,
+ py_Image(image),
+ py_OutputStream(&stream),
+ PyInt_FromLong(verbose),
+ NULL);
+ bool retval = false;
+ if(res) {
+ retval=PyInt_AsLong(res);
+ Py_DECREF(res);
+ PyErr_Clear();
+ } else
+ PyErr_Print();
+ wxPyEndBlockThreads(blocked);
+ return retval;
+}
+
+int wxPyImageHandler::GetImageCount( wxInputStream& stream ) {
+ wxPyBlock_t blocked = wxPyBeginBlockThreads();
+ if (!m_self || !PyObject_HasAttr(m_self, m_GetImageCount_Name)) {
+ wxPyEndBlockThreads(blocked);
+ return 1;
+ }
+ PyObject *res=PyObject_CallMethodObjArgs(m_self, m_GetImageCount_Name,
+ py_InputStream(&stream),
+ NULL);
+ int retval = 1;
+ if(res) {
+ retval=PyInt_AsLong(res);
+ Py_DECREF(res);
+ PyErr_Clear();
+ } else
+ PyErr_Print();
+ wxPyEndBlockThreads(blocked);
+ return retval;
+}
+
+
//----------------------------------------------------------------------
//----------------------------------------------------------------------
projects / wxWidgets.git / blobdiff