X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/0812732316f715a480526cedcd481e7fc31a130c..61243a510fe15e04996a986daaa53ed9fee75484:/utils/wxPython/src/helpers.cpp diff --git a/utils/wxPython/src/helpers.cpp b/utils/wxPython/src/helpers.cpp index 2f8867bed4..a512d7c07c 100644 --- a/utils/wxPython/src/helpers.cpp +++ b/utils/wxPython/src/helpers.cpp @@ -10,20 +10,30 @@ // Licence: wxWindows license ///////////////////////////////////////////////////////////////////////////// +#include // get the correct definition of NULL + +#undef DEBUG +#include +#include "helpers.h" + #ifdef __WXMSW__ -#include +#include #undef FindWindow #undef GetCharWidth #undef LoadAccelerators +#undef GetClassInfo +#undef GetClassName #endif #ifdef __WXGTK__ -#include "gtk/gtk.h" +#include +#include +#include +//#include +//#include +//#include #endif -#undef DEBUG -#include -#include "helpers.h" //--------------------------------------------------------------------------- @@ -37,8 +47,6 @@ wxString wxPyEmptyStr(""); #ifdef __WXMSW__ // If building for win32... -extern HINSTANCE wxhInstance; - //---------------------------------------------------------------------- // This gets run when the DLL is loaded. We just need to save a handle. //---------------------------------------------------------------------- @@ -49,7 +57,7 @@ BOOL WINAPI DllMain( LPVOID lpvReserved // reserved ) { - wxhInstance = hinstDLL; + wxSetInstance(hinstDLL); return 1; } #endif @@ -61,41 +69,52 @@ BOOL WINAPI DllMain( wxPyApp *wxPythonApp = NULL; // Global instance of application object +wxPyApp::wxPyApp() { +// printf("**** ctor\n"); +} + +wxPyApp::~wxPyApp() { +// printf("**** dtor\n"); +} + + // This one isn't acutally called... See __wxStart() bool wxPyApp::OnInit(void) { - return false; + return FALSE; } int wxPyApp::MainLoop(void) { int retval = wxApp::MainLoop(); - AfterMainLoop(); +//# AfterMainLoop(); + wxPythonApp->OnExit(); //# return retval; } -void wxPyApp::AfterMainLoop(void) { - // more stuff from wxEntry... - if (wxPythonApp->GetTopWindow()) { - // Forcibly delete the window. - if (wxPythonApp->GetTopWindow()->IsKindOf(CLASSINFO(wxFrame)) || - wxPythonApp->GetTopWindow()->IsKindOf(CLASSINFO(wxDialog))) { +//# void wxPyApp::AfterMainLoop(void) { +// // more stuff from wxEntry... - wxPythonApp->GetTopWindow()->Close(TRUE); - wxPythonApp->DeletePendingObjects(); - } - else { - delete wxPythonApp->GetTopWindow(); - wxPythonApp->SetTopWindow(NULL); - } - } -#ifdef __WXGTK__ - wxPythonApp->DeletePendingObjects(); -#endif +// if (wxPythonApp->GetTopWindow()) { +// // Forcibly delete the window. +// if (wxPythonApp->GetTopWindow()->IsKindOf(CLASSINFO(wxFrame)) || +// wxPythonApp->GetTopWindow()->IsKindOf(CLASSINFO(wxDialog))) { - wxPythonApp->OnExit(); - wxApp::CleanUp(); -// delete wxPythonApp; -} +// wxPythonApp->GetTopWindow()->Close(TRUE); +// wxPythonApp->DeletePendingObjects(); +// } +// else { +// delete wxPythonApp->GetTopWindow(); +// wxPythonApp->SetTopWindow(NULL); +// } +// } +// #ifdef __WXGTK__ +// wxPythonApp->DeletePendingObjects(); +// #endif + +// wxPythonApp->OnExit(); +// wxApp::CleanUp(); +// // delete wxPythonApp; +// } //--------------------------------------------------------------------- @@ -105,9 +124,13 @@ void wxPyApp::AfterMainLoop(void) { // This is where we pick up the first part of the wxEntry functionality... // The rest is in __wxStart and AfterMainLoop. This function is called when -// wxpc is imported. (Before there is a wxApp object.) +// wxcmodule is imported. (Before there is a wxApp object.) void __wxPreStart() { +#ifdef WXP_WITH_THREAD + PyEval_InitThreads(); +#endif + // Bail out if there is already windows created. This means that the // toolkit has already been initialized, as in embedding wxPython in // a C++ wxWindows app. @@ -128,7 +151,13 @@ void __wxPreStart() argv[argc] = NULL; gtk_set_locale(); +#if wxUSE_WCHAR_T + if (!wxOKlibc()) wxConvCurrent = &wxConvLocal; +#else + if (!wxOKlibc()) wxConvCurrent = (wxMBConv*) NULL; +#endif gtk_init( &argc, &argv ); + wxSetDetectableAutoRepeat( TRUE ); delete [] argv; wxApp::Initialize(); // may return FALSE. Should we check? @@ -137,9 +166,13 @@ void __wxPreStart() } - +#ifdef WXP_WITH_THREAD +PyThreadState* wxPyEventThreadState = NULL; +#endif static char* __nullArgv[1] = { 0 }; + + // Start the user application, user App's OnInit method is a parameter here PyObject* __wxStart(PyObject* /* self */, PyObject* args) { @@ -148,6 +181,9 @@ PyObject* __wxStart(PyObject* /* self */, PyObject* args) PyObject* result; long bResult; +#ifdef WXP_WITH_THREAD + wxPyEventThreadState = PyThreadState_Get(); +#endif if (!PyArg_ParseTuple(args, "O", &onInitFunc)) return NULL; @@ -160,16 +196,15 @@ PyObject* __wxStart(PyObject* /* self */, PyObject* args) // This is the next part of the wxEntry functionality... wxPythonApp->argc = 0; - wxPythonApp->argv = __nullArgv; + wxPythonApp->argv = NULL; wxPythonApp->OnInitGui(); // Call the Python App's OnInit function arglist = PyTuple_New(0); result = PyEval_CallObject(onInitFunc, arglist); - if (!result) { - PyErr_Print(); - exit(1); + if (!result) { // an exception was raised. + return NULL; } if (! PyInt_Check(result)) { @@ -178,10 +213,7 @@ PyObject* __wxStart(PyObject* /* self */, PyObject* args) } bResult = PyInt_AS_LONG(result); if (! bResult) { - wxPythonApp->DeletePendingObjects(); - wxPythonApp->OnExit(); - wxApp::CleanUp(); - PyErr_SetString(PyExc_SystemExit, "OnInit returned false, exiting..."); + PyErr_SetString(PyExc_SystemExit, "OnInit returned FALSE, exiting..."); return NULL; } @@ -233,10 +265,7 @@ PyObject* __wxSetDictionary(PyObject* /* self */, PyObject* args) //--------------------------------------------------------------------------- - -static -PyObject* wxPyConstructObject(void* ptr, char* className) -{ +PyObject* wxPyConstructObject(void* ptr, const char* className) { char buff[64]; // should always be big enough... char swigptr[64]; @@ -257,6 +286,69 @@ PyObject* wxPyConstructObject(void* ptr, char* className) return obj; } +//--------------------------------------------------------------------------- + +static unsigned int _wxPyNestCount = 0; + +static PyThreadState* myPyThreadState_Get() { + PyThreadState* current; + current = PyThreadState_Swap(NULL); + PyThreadState_Swap(current); + return current; +} + + +HELPEREXPORT bool wxPyRestoreThread() { + // NOTE: The Python API docs state that if a thread already has the + // interpreter lock and calls PyEval_RestoreThread again a deadlock + // occurs, so I put in this code as a guard condition since there are + // many possibilites for nested events and callbacks in wxPython. If + // The current thread is our thread, then we can assume that we + // already have the lock. (I hope!) + // +#ifdef WXP_WITH_THREAD + _wxPyNestCount += 1; + if (wxPyEventThreadState != myPyThreadState_Get()) { + PyEval_RestoreThread(wxPyEventThreadState); + return TRUE; + } + else +#endif + return FALSE; +} + + +HELPEREXPORT void wxPySaveThread(bool doSave) { +#ifdef WXP_WITH_THREAD + if (doSave) { + wxPyEventThreadState = PyEval_SaveThread(); + } + _wxPyNestCount -= 1; +#endif +} + +//--------------------------------------------------------------------------- + + +IMPLEMENT_ABSTRACT_CLASS(wxPyCallback, wxObject); + +wxPyCallback::wxPyCallback(PyObject* func) { + m_func = func; + Py_INCREF(m_func); +} + +wxPyCallback::wxPyCallback(const wxPyCallback& other) { + m_func = other.m_func; + Py_INCREF(m_func); +} + +wxPyCallback::~wxPyCallback() { + bool doSave = wxPyRestoreThread(); + Py_DECREF(m_func); + wxPySaveThread(doSave); +} + + // This function is used for all events destined for Python event handlers. void wxPyCallback::EventThunker(wxEvent& event) { @@ -266,7 +358,16 @@ void wxPyCallback::EventThunker(wxEvent& event) { PyObject* arg; PyObject* tuple; - arg = wxPyConstructObject((void*)&event, event.GetClassInfo()->GetClassName()); + + bool doSave = wxPyRestoreThread(); + wxString className = event.GetClassInfo()->GetClassName(); + + if (className == "wxPyEvent") + arg = ((wxPyEvent*)&event)->GetSelf(); + else if (className == "wxPyCommandEvent") + arg = ((wxPyCommandEvent*)&event)->GetSelf(); + else + arg = wxPyConstructObject((void*)&event, className); tuple = PyTuple_New(1); PyTuple_SET_ITEM(tuple, 0, arg); @@ -278,46 +379,154 @@ void wxPyCallback::EventThunker(wxEvent& event) { } else { PyErr_Print(); } + wxPySaveThread(doSave); } -//--------------------------------------------------------------------------- +//---------------------------------------------------------------------- -wxPyMenu::wxPyMenu(const wxString& title, PyObject* _func) - : wxMenu(title, (wxFunction)(func ? MenuCallback : NULL)), func(0) { +wxPyCallbackHelper::wxPyCallbackHelper() { + m_self = NULL; + m_lastFound = NULL; + m_incRef = FALSE; +} - if (_func) { - func = _func; - Py_INCREF(func); - } + +wxPyCallbackHelper::~wxPyCallbackHelper() { + bool doSave = wxPyRestoreThread(); + if (m_incRef) + Py_XDECREF(m_self); + wxPySaveThread(doSave); +} + +wxPyCallbackHelper::wxPyCallbackHelper(const wxPyCallbackHelper& other) { + m_lastFound = NULL; + m_self = other.m_self; + if (m_self) + Py_INCREF(m_self); } -wxPyMenu::~wxPyMenu() { - if (func) - Py_DECREF(func); + +void wxPyCallbackHelper::setSelf(PyObject* self, int incref) { + m_self = self; + m_incRef = incref; + if (incref) + Py_INCREF(m_self); +} + + +bool wxPyCallbackHelper::findCallback(const wxString& name) { + m_lastFound = NULL; + if (m_self && PyObject_HasAttrString(m_self, (char*)name.c_str())) + m_lastFound = PyObject_GetAttrString(m_self, (char*)name.c_str()); + + return m_lastFound != NULL; +} + + +int wxPyCallbackHelper::callCallback(PyObject* argTuple) { + PyObject* result; + int retval = FALSE; + + result = callCallbackObj(argTuple); + if (result) { // Assumes an integer return type... + retval = PyInt_AsLong(result); + Py_DECREF(result); + PyErr_Clear(); // forget about it if it's not... + } + return retval; } +// Invoke the Python callable object, returning the raw PyObject return +// value. Caller should DECREF the return value and also call PyEval_SaveThread. +PyObject* wxPyCallbackHelper::callCallbackObj(PyObject* argTuple) { + PyObject* result; -void wxPyMenu::MenuCallback(wxMenu& menu, wxCommandEvent& evt) { - PyObject* evtobj = wxPyConstructObject((void*)&evt, "wxCommandEvent"); - PyObject* menuobj = wxPyConstructObject((void*)&menu, "wxMenu"); - if (PyErr_Occurred()) { - // bail out if a problem + result = PyEval_CallObject(m_lastFound, argTuple); + Py_DECREF(argTuple); + if (!result) { PyErr_Print(); - return; } - // Now call the callback... - PyObject* func = ((wxPyMenu*)&menu)->func; - PyObject* args = PyTuple_New(2); - PyTuple_SET_ITEM(args, 0, menuobj); - PyTuple_SET_ITEM(args, 1, evtobj); - PyObject* res = PyEval_CallObject(func, args); - Py_DECREF(args); - Py_XDECREF(res); /* In case res is a NULL pointer */ + return result; } + //--------------------------------------------------------------------------- +//--------------------------------------------------------------------------- +// These classes can be derived from in Python and passed through the event +// system without loosing anything. They do this by keeping a reference to +// themselves and some special case handling in wxPyCallback::EventThunker. + + +wxPyEvtSelfRef::wxPyEvtSelfRef() { + //m_self = Py_None; // **** We don't do normal ref counting to prevent + //Py_INCREF(m_self); // circular loops... + m_cloned = FALSE; +} + +wxPyEvtSelfRef::~wxPyEvtSelfRef() { + bool doSave = wxPyRestoreThread(); + if (m_cloned) + Py_DECREF(m_self); + wxPySaveThread(doSave); +} + +void wxPyEvtSelfRef::SetSelf(PyObject* self, bool clone) { + bool doSave = wxPyRestoreThread(); + if (m_cloned) + Py_DECREF(m_self); + m_self = self; + if (clone) { + Py_INCREF(m_self); + m_cloned = TRUE; + } + wxPySaveThread(doSave); +} + +PyObject* wxPyEvtSelfRef::GetSelf() const { + Py_INCREF(m_self); + return m_self; +} + + +wxPyEvent::wxPyEvent(int id) + : wxEvent(id) { +} + +wxPyEvent::~wxPyEvent() { +} + +// This one is so the event object can be Cloned... +void wxPyEvent::CopyObject(wxObject& dest) const { + wxEvent::CopyObject(dest); + ((wxPyEvent*)&dest)->SetSelf(m_self, TRUE); +} + + +IMPLEMENT_DYNAMIC_CLASS(wxPyEvent, wxEvent); + + +wxPyCommandEvent::wxPyCommandEvent(wxEventType commandType, int id) + : wxCommandEvent(commandType, id) { +} + +wxPyCommandEvent::~wxPyCommandEvent() { +} + +void wxPyCommandEvent::CopyObject(wxObject& dest) const { + wxCommandEvent::CopyObject(dest); + ((wxPyCommandEvent*)&dest)->SetSelf(m_self, TRUE); +} + + +IMPLEMENT_DYNAMIC_CLASS(wxPyCommandEvent, wxCommandEvent); + + + +//--------------------------------------------------------------------------- +//--------------------------------------------------------------------------- + wxPyTimer::wxPyTimer(PyObject* callback) { func = callback; @@ -325,10 +534,14 @@ wxPyTimer::wxPyTimer(PyObject* callback) { } wxPyTimer::~wxPyTimer() { + bool doSave = wxPyRestoreThread(); Py_DECREF(func); + wxPySaveThread(doSave); } void wxPyTimer::Notify() { + bool doSave = wxPyRestoreThread(); + PyObject* result; PyObject* args = Py_BuildValue("()"); @@ -340,14 +553,55 @@ void wxPyTimer::Notify() { } else { PyErr_Print(); } + wxPySaveThread(doSave); } +//--------------------------------------------------------------------------- +//--------------------------------------------------------------------------- +// Convert a wxList to a Python List + +PyObject* wxPy_ConvertList(wxListBase* list, const char* className) { + PyObject* pyList; + PyObject* pyObj; + wxObject* wxObj; + wxNode* node = list->First(); + + bool doSave = wxPyRestoreThread(); + pyList = PyList_New(0); + while (node) { + wxObj = node->Data(); + pyObj = wxPyConstructObject(wxObj, className); + PyList_Append(pyList, pyObj); + node = node->Next(); + } + wxPySaveThread(doSave); + return pyList; +} + //---------------------------------------------------------------------- + +long wxPyGetWinHandle(wxWindow* win) { +#ifdef __WXMSW__ + return (long)win->GetHandle(); +#endif + + // Find and return the actual X-Window. +#ifdef __WXGTK__ + if (win->m_wxwindow) { + GdkWindowPrivate* bwin = (GdkWindowPrivate*)GTK_PIZZA(win->m_wxwindow)->bin_window; + if (bwin) { + return (long)bwin->xwindow; + } + } +#endif + return 0; +} + //---------------------------------------------------------------------- // Some helper functions for typemaps in my_typemaps.i, so they won't be -// imcluded in every file... +// included in every file... byte* byte_LIST_helper(PyObject* source) { @@ -456,22 +710,21 @@ wxPoint* wxPoint_LIST_helper(PyObject* source) { } for (int x=0; x