X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/b856768b042103445eb6c35afebb79ecd041be2f..79032d2bde9d0fea22bdcb69bb1706456f9b3c21:/wxPython/src/helpers.cpp?ds=inline diff --git a/wxPython/src/helpers.cpp b/wxPython/src/helpers.cpp index f2d08f0fcb..e7326368ce 100644 --- a/wxPython/src/helpers.cpp +++ b/wxPython/src/helpers.cpp @@ -15,6 +15,8 @@ #include #include "wx/wxPython/wxPython_int.h" #include "wx/wxPython/pyistream.h" +#include "wx/wxPython/swigver.h" +#include "wx/wxPython/twoitem.h" #ifdef __WXMSW__ #include @@ -23,9 +25,24 @@ #endif #ifdef __WXGTK__ +#include +#include #include #include #include +#define GetXWindow(wxwin) (wxwin)->m_wxwindow ? \ + GDK_WINDOW_XWINDOW(GTK_PIZZA((wxwin)->m_wxwindow)->bin_window) : \ + GDK_WINDOW_XWINDOW((wxwin)->m_widget->window) +#include +#endif + +#ifdef __WXX11__ +#include "wx/x11/privx.h" +#define GetXWindow(wxwin) ((Window)(wxwin)->GetHandle()) +#endif + +#ifdef __WXMAC__ +#include #endif #include @@ -34,25 +51,25 @@ //---------------------------------------------------------------------- -#if PYTHON_API_VERSION <= 1007 && wxUSE_UNICODE +#if PYTHON_API_VERSION < 1009 && wxUSE_UNICODE #error Python must support Unicode to use wxWindows Unicode #endif //---------------------------------------------------------------------- wxPyApp* wxPythonApp = NULL; // Global instance of application object -bool wxPyDoCleanup = False; -bool wxPyDoingCleanup = False; +bool wxPyDoCleanup = false; +bool wxPyDoingCleanup = false; #ifdef WXP_WITH_THREAD +#if !wxPyUSE_GIL_STATE struct wxPyThreadState { unsigned long tid; PyThreadState* tstate; - int blocked; wxPyThreadState(unsigned long _tid=0, PyThreadState* _tstate=NULL) - : tid(_tid), tstate(_tstate), blocked(1) {} + : tid(_tid), tstate(_tstate) {} }; #include @@ -62,11 +79,17 @@ WX_DEFINE_OBJARRAY(wxPyThreadStateArray); wxPyThreadStateArray* wxPyTStates = NULL; wxMutex* wxPyTMutex = NULL; + +#endif #endif +#define DEFAULTENCODING_SIZE 64 +static char wxPyDefaultEncoding[DEFAULTENCODING_SIZE] = "ascii"; + static PyObject* wxPython_dict = NULL; static PyObject* wxPyAssertionError = NULL; +static PyObject* wxPyNoAppError = NULL; PyObject* wxPyPtrTypeMap = NULL; @@ -76,17 +99,18 @@ PyObject* wxPyPtrTypeMap = NULL; // This gets run when the DLL is loaded. We just need to save a handle. //---------------------------------------------------------------------- +extern "C" BOOL WINAPI DllMain( HINSTANCE hinstDLL, // handle to DLL module DWORD fdwReason, // reason for calling function LPVOID lpvReserved // reserved ) { - // If wxPython is embedded in another wxWindows app then - // the inatance has already been set. + // If wxPython is embedded in another wxWidgets app then + // the instance has already been set. if (! wxGetInstance()) wxSetInstance(hinstDLL); - return True; + return true; } #endif @@ -99,17 +123,19 @@ IMPLEMENT_ABSTRACT_CLASS(wxPyApp, wxApp); wxPyApp::wxPyApp() { m_assertMode = wxPYAPP_ASSERT_EXCEPTION; - m_startupComplete = False; + m_startupComplete = false; } wxPyApp::~wxPyApp() { + wxPythonApp = NULL; + wxApp::SetInstance(NULL); } // This one isn't acutally called... We fake it with _BootstrapApp bool wxPyApp::OnInit() { - return False; + return false; } @@ -131,50 +157,64 @@ int wxPyApp::MainLoop() { bool wxPyApp::OnInitGui() { - bool rval=True; + bool rval=true; wxApp::OnInitGui(); // in this case always call the base class version - wxPyBeginBlockThreads(); + wxPyBlock_t blocked = wxPyBeginBlockThreads(); if (wxPyCBH_findCallback(m_myInst, "OnInitGui")) rval = wxPyCBH_callCallback(m_myInst, Py_BuildValue("()")); - wxPyEndBlockThreads(); + wxPyEndBlockThreads(blocked); return rval; } int wxPyApp::OnExit() { int rval=0; - wxPyBeginBlockThreads(); + wxPyBlock_t blocked = wxPyBeginBlockThreads(); if (wxPyCBH_findCallback(m_myInst, "OnExit")) rval = wxPyCBH_callCallback(m_myInst, Py_BuildValue("()")); - wxPyEndBlockThreads(); + wxPyEndBlockThreads(blocked); wxApp::OnExit(); // in this case always call the base class version return rval; } -#ifdef __WXDEBUG__ -void wxPyApp::OnAssert(const wxChar *file, - int line, - const wxChar *cond, - const wxChar *msg) { +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::OnAssertFailure(const wxChar *file, + int line, + const wxChar *func, + const wxChar *cond, + const wxChar *msg) +{ // if we're not fully initialized then just log the error if (! m_startupComplete) { wxString buf; buf.Alloc(4096); buf.Printf(wxT("%s(%d): assert \"%s\" failed"), file, line, cond); - if (msg != NULL) { - buf += wxT(": "); - buf += msg; - } + if ( func && *func ) + buf << wxT(" in ") << func << wxT("()"); + if (msg != NULL) + buf << wxT(": ") << msg; + wxLogDebug(buf); return; - } - + } + // If the OnAssert is overloaded in the Python class then call it... bool found; - wxPyBeginBlockThreads(); + wxPyBlock_t blocked = wxPyBeginBlockThreads(); if ((found = wxPyCBH_findCallback(m_myInst, "OnAssert"))) { PyObject* fso = wx2PyString(file); PyObject* cso = wx2PyString(file); @@ -189,7 +229,7 @@ void wxPyApp::OnAssert(const wxChar *file, Py_DECREF(cso); Py_DECREF(mso); } - wxPyEndBlockThreads(); + wxPyEndBlockThreads(blocked); // ...otherwise do our own thing with it if (! found) { @@ -201,18 +241,19 @@ void wxPyApp::OnAssert(const wxChar *file, if (m_assertMode & wxPYAPP_ASSERT_EXCEPTION) { wxString buf; buf.Alloc(4096); - buf.Printf(wxT("C++ assertion \"%s\" failed in %s(%d)"), cond, file, line); - if (msg != NULL) { - buf += wxT(": "); - buf += msg; - } + buf.Printf(wxT("C++ assertion \"%s\" failed at %s(%d)"), cond, file, line); + if ( func && *func ) + buf << wxT(" in ") << func << wxT("()"); + if (msg != NULL) + buf << wxT(": ") << msg; + // set the exception - wxPyBeginBlockThreads(); + wxPyBlock_t blocked = wxPyBeginBlockThreads(); PyObject* s = wx2PyString(buf); PyErr_SetObject(wxPyAssertionError, s); Py_DECREF(s); - wxPyEndBlockThreads(); + wxPyEndBlockThreads(blocked); // Now when control returns to whatever API wrapper was called from // Python it should detect that an exception is set and will return @@ -226,20 +267,58 @@ void wxPyApp::OnAssert(const wxChar *file, buf.Alloc(4096); buf.Printf(wxT("%s(%d): assert \"%s\" failed"), file, line, cond); - if (msg != NULL) { - buf += wxT(": "); - buf += msg; - } + if ( func && *func ) + buf << wxT(" in ") << func << wxT("()"); + if (msg != NULL) + buf << wxT(": ") << msg; wxLogDebug(buf); } // do the normal wx assert dialog? if (m_assertMode & wxPYAPP_ASSERT_DIALOG) - wxApp::OnAssert(file, line, cond, msg); + wxApp::OnAssertFailure(file, line, func, cond, msg); } } #endif + // For catching Apple Events +void wxPyApp::MacOpenFile(const wxString &fileName) +{ + wxPyBlock_t blocked = wxPyBeginBlockThreads(); + if (wxPyCBH_findCallback(m_myInst, "MacOpenFile")) { + PyObject* s = wx2PyString(fileName); + wxPyCBH_callCallback(m_myInst, Py_BuildValue("(O)", s)); + Py_DECREF(s); + } + wxPyEndBlockThreads(blocked); +} + +void wxPyApp::MacPrintFile(const wxString &fileName) +{ + wxPyBlock_t blocked = wxPyBeginBlockThreads(); + if (wxPyCBH_findCallback(m_myInst, "MacPrintFile")) { + PyObject* s = wx2PyString(fileName); + wxPyCBH_callCallback(m_myInst, Py_BuildValue("(O)", s)); + Py_DECREF(s); + } + wxPyEndBlockThreads(blocked); +} + +void wxPyApp::MacNewFile() +{ + wxPyBlock_t blocked = wxPyBeginBlockThreads(); + if (wxPyCBH_findCallback(m_myInst, "MacNewFile")) + wxPyCBH_callCallback(m_myInst, Py_BuildValue("()")); + wxPyEndBlockThreads(blocked); +} + +void wxPyApp::MacReopenApp() +{ + wxPyBlock_t blocked = wxPyBeginBlockThreads(); + if (wxPyCBH_findCallback(m_myInst, "MacReopenApp")) + wxPyCBH_callCallback(m_myInst, Py_BuildValue("()")); + wxPyEndBlockThreads(blocked); +} /*static*/ @@ -327,56 +406,100 @@ void wxPyApp::SetMacHelpMenuTitleName(const wxString& val) { // that should be present in the derived (Python) class. void wxPyApp::_BootstrapApp() { + static bool haveInitialized = false; bool result; + wxPyBlock_t blocked; PyObject* retval = NULL; PyObject* pyint = NULL; - - - // Get any command-line args passed to this program from the sys module - int argc = 0; - char** argv = NULL; - wxPyBeginBlockThreads(); - PyObject* sysargv = PySys_GetObject("argv"); - if (sysargv != NULL) { - argc = PyList_Size(sysargv); - argv = new char*[argc+1]; - int x; - for(x=0; xSetStartupComplete(True); + // On wxGTK the locale will be changed to match the system settings, + // but Python before 2.4 needs to have LC_NUMERIC set to "C" in order + // for the floating point conversions and such to work right. +#if defined(__WXGTK__) && PY_VERSION_HEX < 0x02040000 + setlocale(LC_NUMERIC, "C"); +#endif + +// wxSystemOptions::SetOption(wxT("mac.textcontrol-use-mlte"), 1); + + wxPyEndBlockThreads(blocked); + haveInitialized = true; + } + else { + this->argc = 0; + this->argv = NULL; + } - // Call the Python wxApp's OnInit function - if (wxPyCBH_findCallback(m_myInst, "OnInit")) { + // It's now ok to generate exceptions for assertion errors. + wxPythonApp->SetStartupComplete(true); + + + // Call the Python wxApp's OnPreInit and OnInit functions + blocked = wxPyBeginBlockThreads(); + if (wxPyCBH_findCallback(m_myInst, "OnPreInit")) { 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) goto error; - - pyint = PyNumber_Int(retval); + } + if (wxPyCBH_findCallback(m_myInst, "OnInit")) { + + 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) + // Don't PyErr_Print here, let the exception in this case go back + // up to the wx.PyApp.__init__ scope. + goto error; + + pyint = PyNumber_Int(retval); if (! pyint) { PyErr_SetString(PyExc_TypeError, "OnInit should return a boolean value"); goto error; @@ -385,19 +508,18 @@ void wxPyApp::_BootstrapApp() } else { // Is it okay if there is no OnInit? Probably so... - result = True; + result = true; } - - + if (! result) { - PyErr_SetString(PyExc_SystemExit, "OnInit returned False, exiting..."); + PyErr_SetString(PyExc_SystemExit, "OnInit returned false, exiting..."); } error: Py_XDECREF(retval); Py_XDECREF(pyint); - - wxPyEndBlockThreads(); + + wxPyEndBlockThreads(blocked); }; //--------------------------------------------------------------------- @@ -449,17 +571,23 @@ inline const char* dropwx(const char* name) { //---------------------------------------------------------------------- -// This function is called when the wxc module is imported to do some initial -// setup. (Before there is a wxApp object.) The rest happens in +// This function is called when the wx._core_ module is imported to do some +// initial setup. (Before there is a wxApp object.) The rest happens in // wxPyApp::_BootstrapApp void __wxPyPreStart(PyObject* moduleDict) { #ifdef __WXMSW__ -// wxCrtSetDbgFlag(_CRTDBG_LEAK_CHECK_DF); +// wxCrtSetDbgFlag(_CRTDBG_LEAK_CHECK_DF +// | _CRTDBG_CHECK_ALWAYS_DF +// | _CRTDBG_DELAY_FREE_MEM_DF +// ); #endif #ifdef WXP_WITH_THREAD +#if wxPyUSE_GIL_STATE + PyEval_InitThreads(); +#else PyEval_InitThreads(); wxPyTStates = new wxPyThreadStateArray; wxPyTMutex = new wxMutex; @@ -467,34 +595,36 @@ void __wxPyPreStart(PyObject* moduleDict) // Save the current (main) thread state in our array PyThreadState* tstate = wxPyBeginAllowThreads(); wxPyEndAllowThreads(tstate); +#endif #endif // Ensure that the build options in the DLL (or whatever) match this build wxApp::CheckBuildOptions(WX_BUILD_OPTIONS_SIGNATURE, "wxPython"); - // Init the stock objects to a non-NULL value so SWIG doesn't create them as None - wxPy_ReinitStockObjects(1); + wxInitAllImageHandlers(); } void __wxPyCleanup() { - wxPyDoingCleanup = True; + wxPyDoingCleanup = true; if (wxPyDoCleanup) { - wxPyDoCleanup = False; + wxPyDoCleanup = false; wxEntryCleanup(); } #ifdef WXP_WITH_THREAD +#if !wxPyUSE_GIL_STATE delete wxPyTMutex; wxPyTMutex = NULL; wxPyTStates->Empty(); delete wxPyTStates; wxPyTStates = NULL; #endif +#endif } -// Save a reference to the dictionary of the wx.core module, and inject +// Save a reference to the dictionary of the wx._core module, and inject // a few more things into it. PyObject* __wxPySetDictionary(PyObject* /* self */, PyObject* args) { @@ -503,7 +633,8 @@ PyObject* __wxPySetDictionary(PyObject* /* self */, PyObject* args) return NULL; if (!PyDict_Check(wxPython_dict)) { - PyErr_SetString(PyExc_TypeError, "_wxPySetDictionary must have dictionary object!"); + PyErr_SetString(PyExc_TypeError, + "_wxPySetDictionary must have dictionary object!"); return NULL; } @@ -512,25 +643,36 @@ PyObject* __wxPySetDictionary(PyObject* /* self */, PyObject* args) PyDict_SetItemString(wxPython_dict, "__wxPyPtrTypeMap", wxPyPtrTypeMap); // Create an exception object to use for wxASSERTions - wxPyAssertionError = PyErr_NewException("wx.core.PyAssertionError", + wxPyAssertionError = PyErr_NewException("wx._core.PyAssertionError", PyExc_AssertionError, NULL); PyDict_SetItemString(wxPython_dict, "PyAssertionError", wxPyAssertionError); + // Create an exception object to use when the app object hasn't been created yet + wxPyNoAppError = PyErr_NewException("wx._core.PyNoAppError", + PyExc_RuntimeError, NULL); + PyDict_SetItemString(wxPython_dict, "PyNoAppError", wxPyNoAppError); + + #ifdef __WXMOTIF__ #define wxPlatform "__WXMOTIF__" +#define wxPlatName "wxMotif" #endif #ifdef __WXX11__ #define wxPlatform "__WXX11__" +#define wxPlatName "wxX11" #endif #ifdef __WXGTK__ #define wxPlatform "__WXGTK__" +#define wxPlatName "wxGTK" #endif -#if defined(__WIN32__) || defined(__WXMSW__) +#ifdef __WXMSW__ #define wxPlatform "__WXMSW__" +#define wxPlatName "wxMSW" #endif #ifdef __WXMAC__ #define wxPlatform "__WXMAC__" +#define wxPlatName "wxMac" #endif #ifdef __WXDEBUG__ @@ -539,197 +681,103 @@ PyObject* __wxPySetDictionary(PyObject* /* self */, PyObject* args) int wxdebug = 0; #endif + // These should be deprecated in favor of the PlatformInfo tuple built below... PyDict_SetItemString(wxPython_dict, "Platform", PyString_FromString(wxPlatform)); PyDict_SetItemString(wxPython_dict, "USE_UNICODE", PyInt_FromLong(wxUSE_UNICODE)); PyDict_SetItemString(wxPython_dict, "__WXDEBUG__", PyInt_FromLong(wxdebug)); - RETURN_NONE(); -} - - -//--------------------------------------------------------------------------- - -// 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; -} + // Make a tuple of strings that gives more info about the platform. + PyObject* PlatInfo = PyList_New(0); + PyObject* obj; -//--------------------------------------------------------------------------- +#define _AddInfoString(st) \ + obj = PyString_FromString(st); \ + PyList_Append(PlatInfo, obj); \ + Py_DECREF(obj) -// The stock objects are no longer created when the wxc module is imported, -// but only after the app object has been created. The -// wxPy_ReinitStockObjects function will be called 3 times to pass the stock -// objects though various stages of evolution: -// -// pass 1: Set all the pointers to a non-NULL value so the Python proxy -// object will be created (otherwise it will just use None.) -// -// pass 2: After the module has been imported and the python proxys have -// been created, then set the __class__ to be _wxPyUnbornObject so -// it will catch any access to the object and will raise an exception. -// -// pass 3: Finally, from OnInit patch things up so the stock objects can -// be used. + _AddInfoString(wxPlatform); + _AddInfoString(wxPlatName); +#if wxUSE_UNICODE + _AddInfoString("unicode"); +#else + _AddInfoString("ansi"); +#endif +#ifdef __WXGTK__ +#ifdef __WXGTK20__ + _AddInfoString("gtk2"); +#else + _AddInfoString("gtk1"); +#endif +#endif +#ifdef __WXDEBUG__ + _AddInfoString("wx-assertions-on"); +#else + _AddInfoString("wx-assertions-off"); +#endif + _AddInfoString(wxPy_SWIG_VERSION); +#ifdef __WXMAC__ + #if wxMAC_USE_CORE_GRAPHICS + _AddInfoString("mac-cg"); + #else + _AddInfoString("mac-qd"); + #endif + #if wxMAC_USE_NATIVE_TOOLBAR + _AddInfoString("mac-native-tb"); + #else + _AddInfoString("mac-no-native-tb"); + #endif +#endif + +#undef _AddInfoString + PyObject* PlatInfoTuple = PyList_AsTuple(PlatInfo); + Py_DECREF(PlatInfo); + PyDict_SetItemString(wxPython_dict, "PlatformInfo", PlatInfoTuple); -PyObject* __wxPyFixStockObjects(PyObject* /* self */, PyObject* args) -{ - wxPy_ReinitStockObjects(2); RETURN_NONE(); } -static void rsoPass2(const char* name) -{ - static PyObject* unbornObjectClass = NULL; - PyObject* obj; - - if (unbornObjectClass == NULL) { - unbornObjectClass = PyDict_GetItemString(wxPython_dict, "_wxPyUnbornObject"); - Py_INCREF(unbornObjectClass); - } - - // Find the object instance - obj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(name)); - wxCHECK_RET(obj != NULL, wxT("Unable to find stock object")); - wxCHECK_RET(wxPySwigInstance_Check(obj), wxT("Not a swig instance")); - - // Change its class - PyObject_SetAttrString(obj, "__class__", unbornObjectClass); - -} - -static void rsoPass3(const char* name, const char* classname, void* ptr) -{ - PyObject* obj; - PyObject* classobj; - PyObject* ptrobj; - // Find the object instance - obj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(name)); - wxCHECK_RET(obj != NULL, wxT("Unable to find stock object")); - wxCHECK_RET(wxPySwigInstance_Check(obj), wxT("Not a swig instance")); +//--------------------------------------------------------------------------- - // Find the class object and put it back in the instance - classobj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(classname)); - wxCHECK_RET(classobj != NULL, wxT("Unable to find stock class object")); - PyObject_SetAttrString(obj, "__class__", classobj); +// Check for existence of a wxApp, setting an exception if there isn't one. +// This doesn't need to aquire the GIL because it should only be called from +// an %exception before the lock is released. - // Rebuild the .this swigified pointer with the new value of the C++ pointer - ptrobj = wxPyMakeSwigPtr(ptr, wxString(classname, *wxConvCurrent)); - PyObject_SetAttrString(obj, "this", ptrobj); - Py_DECREF(ptrobj); +bool wxPyCheckForApp() { + if (wxTheApp != NULL) + return true; + else { + PyErr_SetString(wxPyNoAppError, "The wx.App object must be created first!"); + return false; + } } +//--------------------------------------------------------------------------- - -void wxPy_ReinitStockObjects(int pass) -{ - -#define REINITOBJ(name, classname) \ - if (pass == 1) { name = (classname*)0xC0C0C0C0; } \ - else if (pass == 2) { rsoPass2(#name); } \ - else if (pass == 3) { rsoPass3(#name, #classname, (void*)name); } - - -#define REINITOBJ2(name, classname) \ - if (pass == 1) { } \ - else if (pass == 2) { rsoPass2(#name); } \ - else if (pass == 3) { rsoPass3(#name, #classname, (void*)&name); } - - - REINITOBJ(wxNORMAL_FONT, wxFont); - REINITOBJ(wxSMALL_FONT, wxFont); - REINITOBJ(wxITALIC_FONT, wxFont); - REINITOBJ(wxSWISS_FONT, wxFont); - - REINITOBJ(wxRED_PEN, wxPen); - REINITOBJ(wxCYAN_PEN, wxPen); - REINITOBJ(wxGREEN_PEN, wxPen); - REINITOBJ(wxBLACK_PEN, wxPen); - REINITOBJ(wxWHITE_PEN, wxPen); - REINITOBJ(wxTRANSPARENT_PEN, wxPen); - REINITOBJ(wxBLACK_DASHED_PEN, wxPen); - REINITOBJ(wxGREY_PEN, wxPen); - REINITOBJ(wxMEDIUM_GREY_PEN, wxPen); - REINITOBJ(wxLIGHT_GREY_PEN, wxPen); - - REINITOBJ(wxBLUE_BRUSH, wxBrush); - REINITOBJ(wxGREEN_BRUSH, wxBrush); - REINITOBJ(wxWHITE_BRUSH, wxBrush); - REINITOBJ(wxBLACK_BRUSH, wxBrush); - REINITOBJ(wxTRANSPARENT_BRUSH, wxBrush); - REINITOBJ(wxCYAN_BRUSH, wxBrush); - REINITOBJ(wxRED_BRUSH, wxBrush); - REINITOBJ(wxGREY_BRUSH, wxBrush); - REINITOBJ(wxMEDIUM_GREY_BRUSH, wxBrush); - REINITOBJ(wxLIGHT_GREY_BRUSH, wxBrush); - - REINITOBJ(wxBLACK, wxColour); - REINITOBJ(wxWHITE, wxColour); - REINITOBJ(wxRED, wxColour); - REINITOBJ(wxBLUE, wxColour); - REINITOBJ(wxGREEN, wxColour); - REINITOBJ(wxCYAN, wxColour); - REINITOBJ(wxLIGHT_GREY, wxColour); - - REINITOBJ(wxSTANDARD_CURSOR, wxCursor); - REINITOBJ(wxHOURGLASS_CURSOR, wxCursor); - REINITOBJ(wxCROSS_CURSOR, wxCursor); - - REINITOBJ2(wxNullBitmap, wxBitmap); - REINITOBJ2(wxNullIcon, wxIcon); - REINITOBJ2(wxNullCursor, wxCursor); - REINITOBJ2(wxNullPen, wxPen); - REINITOBJ2(wxNullBrush, wxBrush); - REINITOBJ2(wxNullPalette, wxPalette); - REINITOBJ2(wxNullFont, wxFont); - REINITOBJ2(wxNullColour, wxColour); - - REINITOBJ(wxTheFontList, wxFontList); - REINITOBJ(wxThePenList, wxPenList); - REINITOBJ(wxTheBrushList, wxBrushList); - REINITOBJ(wxTheColourDatabase, wxColourDatabase); - - - REINITOBJ(wxTheClipboard, wxClipboard); - REINITOBJ2(wxDefaultValidator, wxValidator); - REINITOBJ2(wxNullImage, wxImage); - REINITOBJ2(wxNullAcceleratorTable, wxAcceleratorTable); - -#undef REINITOBJ -#undef REINITOBJ2 +void wxPyUserData_dtor(wxPyUserData* self) { + if (! wxPyDoingCleanup) { + wxPyBlock_t blocked = wxPyBeginBlockThreads(); + Py_DECREF(self->m_obj); + self->m_obj = NULL; + wxPyEndBlockThreads(blocked); + } } -//--------------------------------------------------------------------------- void wxPyClientData_dtor(wxPyClientData* self) { if (! wxPyDoingCleanup) { // Don't do it during cleanup as Python // may have already garbage collected the object... - wxPyBeginBlockThreads(); - Py_DECREF(self->m_obj); + if (self->m_incRef) { + wxPyBlock_t blocked = wxPyBeginBlockThreads(); + Py_DECREF(self->m_obj); + wxPyEndBlockThreads(blocked); + } self->m_obj = NULL; - wxPyEndBlockThreads(); } } -void wxPyUserData_dtor(wxPyUserData* self) { - if (! wxPyDoingCleanup) { - wxPyBeginBlockThreads(); - Py_DECREF(self->m_obj); - self->m_obj = NULL; - wxPyEndBlockThreads(); - } -} // This is called when an OOR controled object is being destroyed. Although @@ -744,7 +792,7 @@ void wxPyOORClientData_dtor(wxPyOORClientData* self) { static PyObject* deadObjectClass = NULL; - wxPyBeginBlockThreads(); + wxPyBlock_t blocked = wxPyBeginBlockThreads(); if (deadObjectClass == NULL) { deadObjectClass = PyDict_GetItemString(wxPython_dict, "_wxPyDeadObject"); // TODO: Can not wxASSERT here because inside a wxPyBeginBlock Threads, @@ -754,8 +802,9 @@ void wxPyOORClientData_dtor(wxPyOORClientData* self) { } - // Only if there is more than one reference to the object - if ( !wxPyDoingCleanup && self->m_obj->ob_refcnt > 1 ) { + // Only if there is more than one reference to the object and we are + // holding the OOR reference: + if ( !wxPyDoingCleanup && self->m_obj->ob_refcnt > 1 && self->m_incRef) { // bool isInstance = wxPyInstance_Check(self->m_obj); // TODO same here //wxASSERT_MSG(isInstance, wxT("m_obj not an instance!?!?!")); @@ -770,10 +819,10 @@ void wxPyOORClientData_dtor(wxPyOORClientData* self) { if (PyErr_Occurred()) PyErr_Clear(); // just ignore it for now - + PyObject* dict = PyObject_GetAttrString(self->m_obj, "__dict__"); if (dict) { - // Clear the instance's dictionary + // Clear the instance's dictionary PyDict_Clear(dict); // put the name of the old class into the instance, and then reset the @@ -789,7 +838,7 @@ void wxPyOORClientData_dtor(wxPyOORClientData* self) { } // m_obj is DECREF'd in the base class dtor... - wxPyEndBlockThreads(); + wxPyEndBlockThreads(blocked); } @@ -814,16 +863,17 @@ void wxPyPtrTypeMap_Add(const char* commonName, const char* ptrName) { -PyObject* wxPyMake_wxObject(wxObject* source, bool checkEvtHandler) { +PyObject* wxPyMake_wxObject(wxObject* source, bool setThisOwn, bool checkEvtHandler) { PyObject* target = NULL; - bool isEvtHandler = False; + bool isEvtHandler = false; + bool isSizer = false; if (source) { // If it's derived from wxEvtHandler then there may // already be a pointer to a Python object that we can use // in the OOR data. if (checkEvtHandler && wxIsKindOf(source, wxEvtHandler)) { - isEvtHandler = True; + isEvtHandler = true; wxEvtHandler* eh = (wxEvtHandler*)source; wxPyOORClientData* data = (wxPyOORClientData*)eh->GetClientObject(); if (data) { @@ -833,6 +883,18 @@ PyObject* wxPyMake_wxObject(wxObject* source, bool checkEvtHandler) { } } + // Also check for wxSizer + if (!target && wxIsKindOf(source, wxSizer)) { + isSizer = true; + wxSizer* sz = (wxSizer*)source; + wxPyOORClientData* data = (wxPyOORClientData*)sz->GetClientObject(); + if (data) { + target = data->m_obj; + if (target) + Py_INCREF(target); + } + } + if (! target) { // Otherwise make it the old fashioned way by making a new shadow // object and putting this pointer in it. Look up the class @@ -847,9 +909,11 @@ PyObject* wxPyMake_wxObject(wxObject* source, bool checkEvtHandler) { exists = wxPyCheckSwigType(name); } if (info) { - target = wxPyConstructObject((void*)source, name, False); + target = wxPyConstructObject((void*)source, name, setThisOwn); if (target && isEvtHandler) ((wxEvtHandler*)source)->SetClientObject(new wxPyOORClientData(target)); + if (target && isSizer) + ((wxSizer*)source)->SetClientObject(new wxPyOORClientData(target)); } else { wxString msg(wxT("wxPython class not found for ")); msg += source->GetClassInfo()->GetClassName(); @@ -864,26 +928,9 @@ PyObject* wxPyMake_wxObject(wxObject* source, bool checkEvtHandler) { } -PyObject* wxPyMake_wxSizer(wxSizer* source) { - PyObject* target = NULL; +PyObject* wxPyMake_wxSizer(wxSizer* source, bool setThisOwn) { - if (source && wxIsKindOf(source, wxSizer)) { - // If it's derived from wxSizer then there may already be a pointer to - // a Python object that we can use in the OOR data. - wxSizer* sz = (wxSizer*)source; - wxPyOORClientData* data = (wxPyOORClientData*)sz->GetClientObject(); - if (data) { - target = data->m_obj; - if (target) - Py_INCREF(target); - } - } - if (! target) { - target = wxPyMake_wxObject(source, False); - if (target != Py_None) - ((wxSizer*)source)->SetClientObject(new wxPyOORClientData(target)); - } - return target; + return wxPyMake_wxObject(source, setThisOwn); } @@ -891,6 +938,8 @@ PyObject* wxPyMake_wxSizer(wxSizer* source) { #ifdef WXP_WITH_THREAD +#if !wxPyUSE_GIL_STATE + inline unsigned long wxPyGetCurrentThreadId() { return wxThread::GetCurrentId(); @@ -935,11 +984,12 @@ void wxPySaveThreadState(PyThreadState* tstate) { if (info.tstate != tstate) wxLogMessage("*** tstate mismatch!???"); #endif - // info.tstate = tstate; *** DO NOT update existing ones??? + info.tstate = tstate; // allow for transient tstates // Normally it will never change, but apparently COM callbacks // (i.e. ActiveX controls) will (incorrectly IMHO) use a transient // tstate which will then be garbage the next time we try to use // it... + wxPyTMutex->Unlock(); return; } @@ -950,6 +1000,7 @@ void wxPySaveThreadState(PyThreadState* tstate) { } #endif +#endif @@ -959,8 +1010,9 @@ void wxPySaveThreadState(PyThreadState* tstate) { PyThreadState* wxPyBeginAllowThreads() { #ifdef WXP_WITH_THREAD PyThreadState* saved = PyEval_SaveThread(); // Py_BEGIN_ALLOW_THREADS; +#if !wxPyUSE_GIL_STATE wxPySaveThreadState(saved); - wxPyGetThreadState()->blocked -= 1; +#endif return saved; #else return NULL; @@ -969,7 +1021,6 @@ PyThreadState* wxPyBeginAllowThreads() { void wxPyEndAllowThreads(PyThreadState* saved) { #ifdef WXP_WITH_THREAD - wxPyGetThreadState()->blocked += 1; PyEval_RestoreThread(saved); // Py_END_ALLOW_THREADS; #endif } @@ -979,24 +1030,50 @@ void wxPyEndAllowThreads(PyThreadState* saved) { // 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() { +wxPyBlock_t wxPyBeginBlockThreads() { #ifdef WXP_WITH_THREAD + if (! Py_IsInitialized()) { + return (wxPyBlock_t)0; + } +#if wxPyUSE_GIL_STATE + PyGILState_STATE state = PyGILState_Ensure(); + return state; +#else + PyThreadState *current = _PyThreadState_Current; + + // Only block if there wasn't already a tstate, or if the current one is + // not the one we are wanting to change to. This should prevent deadlock + // if there are nested calls to wxPyBeginBlockThreads + wxPyBlock_t blocked = false; wxPyThreadState* tstate = wxPyGetThreadState(); - if (tstate->blocked++ == 0) { // if nested calls then do nothing + if (current != tstate->tstate) { PyEval_RestoreThread(tstate->tstate); + blocked = true; } + return blocked; +#endif +#else + return (wxPyBlock_t)0; #endif } -void wxPyEndBlockThreads() { +void wxPyEndBlockThreads(wxPyBlock_t blocked) { #ifdef WXP_WITH_THREAD - wxPyThreadState* tstate = wxPyGetThreadState(); - tstate->blocked -= 1; - if ( tstate->blocked == 0) { // if nested calls then do nothing + if (! Py_IsInitialized()) { + return; + } +#if wxPyUSE_GIL_STATE + PyGILState_Release(blocked); +#else + // Only unblock if we blocked in the last call to wxPyBeginBlockThreads. + // The value of blocked passed in needs to be the same as that returned + // from wxPyBeginBlockThreads at the same nesting level. + if ( blocked ) { PyEval_SaveThread(); } #endif +#endif } @@ -1016,11 +1093,12 @@ bool wxPyInputStream::eof() { if (m_wxis) return m_wxis->Eof(); else - return True; + return true; } wxPyInputStream::~wxPyInputStream() { - /* do nothing */ + if (m_wxis) + delete m_wxis; } @@ -1033,9 +1111,9 @@ PyObject* wxPyInputStream::read(int size) { // check if we have a real wxInputStream to work with if (!m_wxis) { - wxPyBeginBlockThreads(); + wxPyBlock_t blocked = wxPyBeginBlockThreads(); PyErr_SetString(PyExc_IOError, "no valid C-wxInputStream"); - wxPyEndBlockThreads(); + wxPyEndBlockThreads(blocked); return NULL; } @@ -1052,7 +1130,7 @@ PyObject* wxPyInputStream::read(int size) { } // error check - wxPyBeginBlockThreads(); + wxPyBlock_t blocked = wxPyBeginBlockThreads(); wxStreamError err = m_wxis->GetLastError(); if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) { PyErr_SetString(PyExc_IOError,"IOError in wxInputStream"); @@ -1061,7 +1139,7 @@ PyObject* wxPyInputStream::read(int size) { // We use only strings for the streams, not unicode obj = PyString_FromStringAndSize(buf, buf.GetDataLen()); } - wxPyEndBlockThreads(); + wxPyEndBlockThreads(blocked); return obj; } @@ -1074,9 +1152,9 @@ PyObject* wxPyInputStream::readline(int size) { // check if we have a real wxInputStream to work with if (!m_wxis) { - wxPyBeginBlockThreads(); + wxPyBlock_t blocked = wxPyBeginBlockThreads(); PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream"); - wxPyEndBlockThreads(); + wxPyEndBlockThreads(blocked); return NULL; } @@ -1087,7 +1165,7 @@ PyObject* wxPyInputStream::readline(int size) { } // errorcheck - wxPyBeginBlockThreads(); + wxPyBlock_t blocked = wxPyBeginBlockThreads(); wxStreamError err = m_wxis->GetLastError(); if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) { PyErr_SetString(PyExc_IOError,"IOError in wxInputStream"); @@ -1096,7 +1174,7 @@ PyObject* wxPyInputStream::readline(int size) { // We use only strings for the streams, not unicode obj = PyString_FromStringAndSize((char*)buf.GetData(), buf.GetDataLen()); } - wxPyEndBlockThreads(); + wxPyEndBlockThreads(blocked); return obj; } @@ -1106,19 +1184,21 @@ PyObject* wxPyInputStream::readlines(int sizehint) { // check if we have a real wxInputStream to work with if (!m_wxis) { - wxPyBeginBlockThreads(); + wxPyBlock_t blocked = wxPyBeginBlockThreads(); PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream"); - wxPyEndBlockThreads(); + wxPyEndBlockThreads(blocked); return NULL; } // init list - wxPyBeginBlockThreads(); + wxPyBlock_t blocked = wxPyBeginBlockThreads(); pylist = PyList_New(0); + wxPyEndBlockThreads(blocked); + if (!pylist) { - wxPyBeginBlockThreads(); + wxPyBlock_t blocked = wxPyBeginBlockThreads(); PyErr_NoMemory(); - wxPyEndBlockThreads(); + wxPyEndBlockThreads(blocked); return NULL; } @@ -1127,24 +1207,24 @@ PyObject* wxPyInputStream::readlines(int sizehint) { for (i=0; (m_wxis->CanRead()) && ((sizehint < 0) || (i < sizehint));) { PyObject* s = this->readline(); if (s == NULL) { - wxPyBeginBlockThreads(); + wxPyBlock_t blocked = wxPyBeginBlockThreads(); Py_DECREF(pylist); - wxPyEndBlockThreads(); + wxPyEndBlockThreads(blocked); return NULL; } - wxPyBeginBlockThreads(); + wxPyBlock_t blocked = wxPyBeginBlockThreads(); PyList_Append(pylist, s); i += PyString_Size(s); - wxPyEndBlockThreads(); + wxPyEndBlockThreads(blocked); } // error check wxStreamError err = m_wxis->GetLastError(); if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) { - wxPyBeginBlockThreads(); + wxPyBlock_t blocked = wxPyBeginBlockThreads(); Py_DECREF(pylist); PyErr_SetString(PyExc_IOError,"IOError in wxInputStream"); - wxPyEndBlockThreads(); + wxPyEndBlockThreads(blocked); return NULL; } @@ -1170,18 +1250,31 @@ wxPyCBInputStream::wxPyCBInputStream(PyObject *r, PyObject *s, PyObject *t, bool : wxInputStream(), m_read(r), m_seek(s), m_tell(t), m_block(block) {} +wxPyCBInputStream::wxPyCBInputStream(const wxPyCBInputStream& other) +{ + m_read = other.m_read; + m_seek = other.m_seek; + m_tell = other.m_tell; + m_block = other.m_block; + Py_INCREF(m_read); + Py_INCREF(m_seek); + Py_INCREF(m_tell); +} + wxPyCBInputStream::~wxPyCBInputStream() { - if (m_block) wxPyBeginBlockThreads(); + wxPyBlock_t blocked; + if (m_block) blocked = wxPyBeginBlockThreads(); Py_XDECREF(m_read); Py_XDECREF(m_seek); Py_XDECREF(m_tell); - if (m_block) wxPyEndBlockThreads(); + if (m_block) wxPyEndBlockThreads(blocked); } wxPyCBInputStream* wxPyCBInputStream::create(PyObject *py, bool block) { - if (block) wxPyBeginBlockThreads(); + wxPyBlock_t blocked; + if (block) blocked = wxPyBeginBlockThreads(); PyObject* read = getMethod(py, "read"); PyObject* seek = getMethod(py, "seek"); @@ -1192,11 +1285,11 @@ wxPyCBInputStream* wxPyCBInputStream::create(PyObject *py, bool block) { Py_XDECREF(read); Py_XDECREF(seek); Py_XDECREF(tell); - if (block) wxPyEndBlockThreads(); + if (block) wxPyEndBlockThreads(blocked); return NULL; } - if (block) wxPyEndBlockThreads(); + if (block) wxPyEndBlockThreads(blocked); return new wxPyCBInputStream(read, seek, tell, block); } @@ -1205,6 +1298,10 @@ wxPyCBInputStream* wxPyCBInputStream_create(PyObject *py, bool block) { return wxPyCBInputStream::create(py, block); } +wxPyCBInputStream* wxPyCBInputStream_copy(wxPyCBInputStream* other) { + return new wxPyCBInputStream(*other); +} + PyObject* wxPyCBInputStream::getMethod(PyObject* py, char* name) { if (!PyObject_HasAttrString(py, name)) return NULL; @@ -1217,16 +1314,16 @@ PyObject* wxPyCBInputStream::getMethod(PyObject* py, char* name) { } -size_t wxPyCBInputStream::GetSize() const { +wxFileOffset wxPyCBInputStream::GetLength() 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); + wxFileOffset temp = self->OnSysTell(); + wxFileOffset ret = self->OnSysSeek(0, wxFromEnd); self->OnSysSeek(temp, wxFromStart); return ret; } else - return 0; + return wxInvalidOffset; } @@ -1234,7 +1331,7 @@ size_t wxPyCBInputStream::OnSysRead(void *buffer, size_t bufsize) { if (bufsize == 0) return 0; - wxPyBeginBlockThreads(); + wxPyBlock_t blocked = wxPyBeginBlockThreads(); PyObject* arglist = Py_BuildValue("(i)", bufsize); PyObject* result = PyEval_CallObject(m_read, arglist); Py_DECREF(arglist); @@ -1252,7 +1349,7 @@ size_t wxPyCBInputStream::OnSysRead(void *buffer, size_t bufsize) { } else m_lasterror = wxSTREAM_READ_ERROR; - wxPyEndBlockThreads(); + wxPyEndBlockThreads(blocked); return o; } @@ -1261,39 +1358,42 @@ size_t wxPyCBInputStream::OnSysWrite(const void *buffer, size_t bufsize) { return 0; } -off_t wxPyCBInputStream::OnSysSeek(off_t off, wxSeekMode mode) { - wxPyBeginBlockThreads(); -#ifdef _LARGE_FILES - // off_t is a 64-bit value... - PyObject* arglist = Py_BuildValue("(Li)", off, mode); -#else - PyObject* arglist = Py_BuildValue("(ii)", off, mode); -#endif + +wxFileOffset wxPyCBInputStream::OnSysSeek(wxFileOffset off, wxSeekMode mode) { + wxPyBlock_t blocked = wxPyBeginBlockThreads(); + PyObject* arglist = PyTuple_New(2); + + if (sizeof(wxFileOffset) > sizeof(long)) + // wxFileOffset is a 64-bit value... + PyTuple_SET_ITEM(arglist, 0, PyLong_FromLongLong(off)); + else + PyTuple_SET_ITEM(arglist, 0, PyInt_FromLong(off)); + + PyTuple_SET_ITEM(arglist, 1, PyInt_FromLong(mode)); + + PyObject* result = PyEval_CallObject(m_seek, arglist); Py_DECREF(arglist); Py_XDECREF(result); - wxPyEndBlockThreads(); + wxPyEndBlockThreads(blocked); return OnSysTell(); } -off_t wxPyCBInputStream::OnSysTell() const { - wxPyBeginBlockThreads(); +wxFileOffset wxPyCBInputStream::OnSysTell() const { + wxPyBlock_t blocked = wxPyBeginBlockThreads(); PyObject* arglist = Py_BuildValue("()"); PyObject* result = PyEval_CallObject(m_tell, arglist); Py_DECREF(arglist); - off_t o = 0; + wxFileOffset o = 0; if (result != NULL) { -#ifdef _LARGE_FILES if (PyLong_Check(result)) o = PyLong_AsLongLong(result); else -#else - o = PyInt_AsLong(result); -#endif + o = PyInt_AsLong(result); Py_DECREF(result); }; - wxPyEndBlockThreads(); + wxPyEndBlockThreads(blocked); return o; } @@ -1312,12 +1412,14 @@ wxPyCallback::wxPyCallback(const wxPyCallback& other) { } wxPyCallback::~wxPyCallback() { - wxPyBeginBlockThreads(); + wxPyBlock_t blocked = wxPyBeginBlockThreads(); Py_DECREF(m_func); - wxPyEndBlockThreads(); + wxPyEndBlockThreads(blocked); } +#define wxPy_PRECALLINIT "_preCallInit" +#define wxPy_POSTCALLCLEANUP "_postCallCleanup" // This function is used for all events destined for Python event handlers. void wxPyCallback::EventThunker(wxEvent& event) { @@ -1326,9 +1428,9 @@ void wxPyCallback::EventThunker(wxEvent& event) { PyObject* result; PyObject* arg; PyObject* tuple; - bool checkSkip = False; + bool checkSkip = false; - wxPyBeginBlockThreads(); + wxPyBlock_t blocked = wxPyBeginBlockThreads(); wxString className = event.GetClassInfo()->GetClassName(); // If the event is one of these types then pass the original @@ -1348,6 +1450,25 @@ void wxPyCallback::EventThunker(wxEvent& event) { if (!arg) { PyErr_Print(); } else { + // "intern" the pre/post method names to speed up the HasAttr + static PyObject* s_preName = NULL; + static PyObject* s_postName = NULL; + if (s_preName == NULL) { + s_preName = PyString_FromString(wxPy_PRECALLINIT); + s_postName = PyString_FromString(wxPy_POSTCALLCLEANUP); + } + + // Check if the event object needs some preinitialization + if (PyObject_HasAttr(arg, s_preName)) { + result = PyObject_CallMethodObjArgs(arg, s_preName, arg, NULL); + if ( result ) { + Py_DECREF(result); // result is ignored, but we still need to decref it + PyErr_Clear(); // Just in case... + } else { + PyErr_Print(); + } + } + // Call the event handler, passing the event object tuple = PyTuple_New(1); PyTuple_SET_ITEM(tuple, 0, arg); // steals ref to arg @@ -1359,6 +1480,17 @@ void wxPyCallback::EventThunker(wxEvent& event) { PyErr_Print(); } + // Check if the event object needs some post cleanup + if (PyObject_HasAttr(arg, s_postName)) { + result = PyObject_CallMethodObjArgs(arg, s_postName, arg, NULL); + if ( result ) { + Py_DECREF(result); // result is ignored, but we still need to decref it + PyErr_Clear(); // Just in case... + } else { + PyErr_Print(); + } + } + if ( checkSkip ) { // if the event object was one of our special types and // it had been cloned, then we need to extract the Skipped @@ -1373,7 +1505,7 @@ void wxPyCallback::EventThunker(wxEvent& event) { } Py_DECREF(tuple); } - wxPyEndBlockThreads(); + wxPyEndBlockThreads(blocked); } @@ -1463,52 +1595,88 @@ PyObject* PyFindClassWithAttr(PyObject *klass, PyObject *name) 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 } -bool wxPyCallbackHelper::findCallback(const char* name) const { +// 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, bool setGuard) 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. + if (setGuard) + setRecursionGuard(method); self->m_lastFound = method; } else { Py_DECREF(method); } } + + Py_DECREF(nameo); return m_lastFound != NULL; } int wxPyCallbackHelper::callCallback(PyObject* argTuple) const { PyObject* result; - int retval = False; + int retval = false; result = callCallbackObj(argTuple); if (result) { // Assumes an integer return type... @@ -1530,6 +1698,8 @@ PyObject* wxPyCallbackHelper::callCallbackObj(PyObject* argTuple) const { PyObject* method = m_lastFound; result = PyEval_CallObject(method, argTuple); + clearRecursionGuard(method); + Py_DECREF(argTuple); Py_DECREF(method); if (!result) { @@ -1543,8 +1713,8 @@ void wxPyCBH_setCallbackInfo(wxPyCallbackHelper& cbh, PyObject* self, PyObject* cbh.setSelf(self, klass, incref); } -bool wxPyCBH_findCallback(const wxPyCallbackHelper& cbh, const char* name) { - return cbh.findCallback(name); +bool wxPyCBH_findCallback(const wxPyCallbackHelper& cbh, const char* name, bool setGuard) { + return cbh.findCallback(name, setGuard); } int wxPyCBH_callCallback(const wxPyCallbackHelper& cbh, PyObject* argTuple) { @@ -1558,10 +1728,10 @@ PyObject* wxPyCBH_callCallbackObj(const wxPyCallbackHelper& cbh, PyObject* argTu void wxPyCBH_delete(wxPyCallbackHelper* cbh) { if (cbh->m_incRef) { - wxPyBeginBlockThreads(); + wxPyBlock_t blocked = wxPyBeginBlockThreads(); Py_XDECREF(cbh->m_self); Py_XDECREF(cbh->m_class); - wxPyEndBlockThreads(); + wxPyEndBlockThreads(blocked); } } @@ -1575,26 +1745,26 @@ void wxPyCBH_delete(wxPyCallbackHelper* cbh) { wxPyEvtSelfRef::wxPyEvtSelfRef() { //m_self = Py_None; // **** We don't do normal ref counting to prevent //Py_INCREF(m_self); // circular loops... - m_cloned = False; + m_cloned = false; } wxPyEvtSelfRef::~wxPyEvtSelfRef() { - wxPyBeginBlockThreads(); + wxPyBlock_t blocked = wxPyBeginBlockThreads(); if (m_cloned) Py_DECREF(m_self); - wxPyEndBlockThreads(); + wxPyEndBlockThreads(blocked); } void wxPyEvtSelfRef::SetSelf(PyObject* self, bool clone) { - wxPyBeginBlockThreads(); + wxPyBlock_t blocked = wxPyBeginBlockThreads(); if (m_cloned) Py_DECREF(m_self); m_self = self; if (clone) { Py_INCREF(m_self); - m_cloned = True; + m_cloned = true; } - wxPyEndBlockThreads(); + wxPyEndBlockThreads(blocked); } PyObject* wxPyEvtSelfRef::GetSelf() const { @@ -1615,7 +1785,7 @@ wxPyEvent::wxPyEvent(int winid, wxEventType commandType) wxPyEvent::wxPyEvent(const wxPyEvent& evt) : wxEvent(evt) { - SetSelf(evt.m_self, True); + SetSelf(evt.m_self, true); } @@ -1631,7 +1801,7 @@ wxPyCommandEvent::wxPyCommandEvent(wxEventType commandType, int id) wxPyCommandEvent::wxPyCommandEvent(const wxPyCommandEvent& evt) : wxCommandEvent(evt) { - SetSelf(evt.m_self, True); + SetSelf(evt.m_self, true); } @@ -1653,38 +1823,35 @@ PyObject* wxPy_ConvertList(wxListBase* listbase) { wxObject* wxObj; wxNode* node = list->GetFirst(); - wxPyBeginBlockThreads(); + wxPyBlock_t blocked = wxPyBeginBlockThreads(); pyList = PyList_New(0); while (node) { wxObj = node->GetData(); - pyObj = wxPyMake_wxObject(wxObj); + pyObj = wxPyMake_wxObject(wxObj,false); PyList_Append(pyList, pyObj); node = node->GetNext(); } - wxPyEndBlockThreads(); + wxPyEndBlockThreads(blocked); 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) { -#ifdef __WXGTK20__ - return (long) GDK_WINDOW_XWINDOW(GTK_PIZZA(win->m_wxwindow)->bin_window); -#else - GdkWindowPrivate* bwin = (GdkWindowPrivate*)GTK_PIZZA(win->m_wxwindow)->bin_window; - if (bwin) { - return (long)bwin->xwindow; - } +#if defined(__WXGTK__) || defined(__WXX11) + return (long)GetXWindow(win); #endif - } + +#ifdef __WXMAC__ + //return (long)MAC_WXHWND(win->MacGetTopLevelWindowRef()); + return (long)win->GetHandle(); #endif + return 0; } @@ -1692,50 +1859,47 @@ long wxPyGetWinHandle(wxWindow* win) { // Some helper functions for typemaps in my_typemaps.i, so they won't be // 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 + wxString* target = NULL; + if (!PyString_Check(source) && !PyUnicode_Check(source)) { - PyErr_SetString(PyExc_TypeError, wxStringErrorMsg); + PyErr_SetString(PyExc_TypeError, "String or Unicode type required"); return NULL; } #if wxUSE_UNICODE - if (PyUnicode_Check(source)) { - target = new wxString(); - size_t len = PyUnicode_GET_SIZE(source); - if (len) { - PyUnicode_AsWideChar((PyUnicodeObject*)source, target->GetWriteBuf(len), len); - target->UngetWriteBuf(); - } - } 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); + PyObject* uni = source; + if (PyString_Check(source)) { + uni = PyUnicode_FromEncodedObject(source, wxPyDefaultEncoding, "strict"); + if (PyErr_Occurred()) return NULL; + } + target = new wxString(); + size_t len = PyUnicode_GET_SIZE(uni); + if (len) { + PyUnicode_AsWideChar((PyUnicodeObject*)uni, target->GetWriteBuf(len), len); + target->UngetWriteBuf(len); } + + if (PyString_Check(source)) + Py_DECREF(uni); #else - char* tmpPtr; int tmpSize; - if (PyString_AsStringAndSize(source, &tmpPtr, &tmpSize) == -1) { - PyErr_SetString(PyExc_TypeError, "Unable to convert string"); - return NULL; + // Convert to a string object if it isn't already, then to wxString + PyObject* str = source; + if (PyUnicode_Check(source)) { + str = PyUnicode_AsEncodedString(source, wxPyDefaultEncoding, "strict"); + if (PyErr_Occurred()) return NULL; + } + else if (!PyString_Check(source)) { + str = PyObject_Str(source); + if (PyErr_Occurred()) return NULL; } + char* tmpPtr; Py_ssize_t tmpSize; + PyString_AsStringAndSize(str, &tmpPtr, &tmpSize); target = new wxString(tmpPtr, tmpSize); + + if (!PyString_Check(source)) + Py_DECREF(str); #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; } @@ -1744,45 +1908,41 @@ wxString* wxString_in_helper(PyObject* source) { 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 + // Convert to a unicode object, if not already, then to a wxString + PyObject* uni = source; + if (!PyUnicode_Check(source)) { + uni = PyUnicode_FromEncodedObject(source, wxPyDefaultEncoding, "strict"); + if (PyErr_Occurred()) return wxEmptyString; // TODO: should we PyErr_Clear? + } + size_t len = PyUnicode_GET_SIZE(uni); + if (len) { + PyUnicode_AsWideChar((PyUnicodeObject*)uni, target.GetWriteBuf(len), len); + target.UngetWriteBuf(); } -#if wxUSE_UNICODE + if (!PyUnicode_Check(source)) + Py_DECREF(uni); +#else + // Convert to a string object if it isn't already, then to wxString + PyObject* str = source; if (PyUnicode_Check(source)) { - size_t len = PyUnicode_GET_SIZE(source); - if (len) { - PyUnicode_AsWideChar((PyUnicodeObject*)source, target.GetWriteBuf(len), len); - target.UngetWriteBuf(); - } - } 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); + str = PyUnicode_AsEncodedString(source, wxPyDefaultEncoding, "strict"); + if (PyErr_Occurred()) return wxEmptyString; // TODO: should we PyErr_Clear? } -#else - char* tmpPtr; int tmpSize; - PyString_AsStringAndSize(source, &tmpPtr, &tmpSize); + else if (!PyString_Check(source)) { + str = PyObject_Str(source); + if (PyErr_Occurred()) return wxEmptyString; // TODO: should we PyErr_Clear? + } + char* tmpPtr; Py_ssize_t tmpSize; + PyString_AsStringAndSize(str, &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 (!PyString_Check(source)) + Py_DECREF(str); +#endif // wxUSE_UNICODE - if (doDecRef) - Py_DECREF(source); return target; } @@ -1800,6 +1960,17 @@ PyObject* wx2PyString(const wxString& src) } + +void wxSetDefaultPyEncoding(const char* encoding) +{ + strncpy(wxPyDefaultEncoding, encoding, DEFAULTENCODING_SIZE); +} + +const char* wxGetDefaultPyEncoding() +{ + return wxPyDefaultEncoding; +} + //---------------------------------------------------------------------- @@ -1900,24 +2071,24 @@ static inline bool wxPointFromObjects(PyObject* o1, PyObject* o2, wxPoint* point if (PyInt_Check(o1) && PyInt_Check(o2)) { point->x = PyInt_AS_LONG(o1); point->y = PyInt_AS_LONG(o2); - return True; + return true; } if (PyFloat_Check(o1) && PyFloat_Check(o2)) { point->x = (int)PyFloat_AS_DOUBLE(o1); point->y = (int)PyFloat_AS_DOUBLE(o2); - return True; + return true; } if (wxPySwigInstance_Check(o1) || wxPySwigInstance_Check(o2)) { // TODO: Why??? // Disallow instances because they can cause havok - return False; + return false; } if (PyNumber_Check(o1) && PyNumber_Check(o2)) { // I believe this excludes instances, so this should be safe without INCREFFing o1 and o2 point->x = PyInt_AsLong(o1); point->y = PyInt_AsLong(o2); - return True; + return true; } - return False; + return false; } @@ -2143,7 +2314,7 @@ bool wxPy2int_seq_helper(PyObject* source, int* i1, int* i2) { PyObject *o1, *o2; if (!PySequence_Check(source) || PySequence_Length(source) != 2) - return False; + return false; if (isFast) { o1 = PySequence_Fast_GET_ITEM(source, 0); @@ -2161,7 +2332,7 @@ bool wxPy2int_seq_helper(PyObject* source, int* i1, int* i2) { Py_DECREF(o1); Py_DECREF(o2); } - return True; + return true; } @@ -2170,7 +2341,7 @@ bool wxPy4int_seq_helper(PyObject* source, int* i1, int* i2, int* i3, int* i4) { PyObject *o1, *o2, *o3, *o4; if (!PySequence_Check(source) || PySequence_Length(source) != 4) - return False; + return false; if (isFast) { o1 = PySequence_Fast_GET_ITEM(source, 0); @@ -2196,7 +2367,7 @@ bool wxPy4int_seq_helper(PyObject* source, int* i1, int* i2, int* i3, int* i4) { Py_DECREF(o3); Py_DECREF(o4); } - return True; + return true; } @@ -2205,26 +2376,34 @@ bool wxPy4int_seq_helper(PyObject* source, int* i1, int* i2, int* i3, int* i4) { bool wxPySimple_typecheck(PyObject* source, const wxChar* classname, int seqLen) { void* ptr; - + if (wxPySwigInstance_Check(source) && wxPyConvertSwigPtr(source, (void **)&ptr, classname)) - return True; + return true; PyErr_Clear(); if (PySequence_Check(source) && PySequence_Length(source) == seqLen) - return True; - - return False; -} + return true; + + return false; +} bool wxSize_helper(PyObject* source, wxSize** obj) { + if (source == Py_None) { + **obj = wxSize(-1,-1); + return true; + } return wxPyTwoIntItem_helper(source, obj, wxT("wxSize")); } bool wxPoint_helper(PyObject* source, wxPoint** obj) { + if (source == Py_None) { + **obj = wxPoint(-1,-1); + return true; + } return wxPyTwoIntItem_helper(source, obj, wxT("wxPoint")); } @@ -2232,13 +2411,18 @@ bool wxPoint_helper(PyObject* source, wxPoint** obj) bool wxRealPoint_helper(PyObject* source, wxRealPoint** obj) { + if (source == Py_None) { + **obj = wxRealPoint(-1,-1); + return true; + } + // If source is an object instance then it may already be the right type if (wxPySwigInstance_Check(source)) { wxRealPoint* ptr; if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxRealPoint"))) goto error; *obj = ptr; - return True; + return true; } // otherwise a 2-tuple of floats is expected else if (PySequence_Check(source) && PyObject_Length(source) == 2) { @@ -2252,25 +2436,30 @@ bool wxRealPoint_helper(PyObject* source, wxRealPoint** obj) { **obj = wxRealPoint(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2)); Py_DECREF(o1); Py_DECREF(o2); - return True; + return true; } error: PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of floats or a wxRealPoint object."); - return False; + return false; } bool wxRect_helper(PyObject* source, wxRect** obj) { + if (source == Py_None) { + **obj = wxRect(-1,-1,-1,-1); + return true; + } + // If source is an object instance then it may already be the right type if (wxPySwigInstance_Check(source)) { wxRect* ptr; if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxRect"))) goto error; *obj = ptr; - return True; + return true; } // otherwise a 4-tuple of integers is expected else if (PySequence_Check(source) && PyObject_Length(source) == 4) { @@ -2292,25 +2481,30 @@ bool wxRect_helper(PyObject* source, wxRect** obj) { Py_DECREF(o2); Py_DECREF(o3); Py_DECREF(o4); - return True; + return true; } error: PyErr_SetString(PyExc_TypeError, "Expected a 4-tuple of integers or a wxRect object."); - return False; + return false; } bool wxColour_helper(PyObject* source, wxColour** obj) { + if (source == Py_None) { + **obj = wxNullColour; + return true; + } + // If source is an object instance then it may already be the right type if (wxPySwigInstance_Check(source)) { wxColour* ptr; if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxColour"))) goto error; *obj = ptr; - return True; + return true; } // otherwise check for a string else if (PyString_Check(source) || PyUnicode_Check(source)) { @@ -2323,14 +2517,14 @@ bool wxColour_helper(PyObject* source, wxColour** obj) { spec.Mid(5,2).ToLong(&blue, 16); **obj = wxColour(red, green, blue); - return True; + return true; } else { // it's a colour name **obj = wxColour(spec); - return True; + return true; } } - // last chance: 3-tuple of integers is expected + // last chance: 3-tuple or 4-tuple of integers is expected else if (PySequence_Check(source) && PyObject_Length(source) == 3) { PyObject* o1 = PySequence_GetItem(source, 0); PyObject* o2 = PySequence_GetItem(source, 1); @@ -2345,37 +2539,62 @@ bool wxColour_helper(PyObject* source, wxColour** obj) { Py_DECREF(o1); Py_DECREF(o2); Py_DECREF(o3); - return True; + return true; + } + else if (PySequence_Check(source) && PyObject_Length(source) == 4) { + PyObject* o1 = PySequence_GetItem(source, 0); + 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 = wxColour(PyInt_AsLong(o1), PyInt_AsLong(o2), PyInt_AsLong(o3), PyInt_AsLong(o4)); + Py_DECREF(o1); + Py_DECREF(o2); + Py_DECREF(o3); + Py_DECREF(o4); + return true; } error: PyErr_SetString(PyExc_TypeError, - "Expected a wxColour object or a string containing a colour name or '#RRGGBB'."); - return False; + "Expected a wxColour object, a string containing a colour name or '#RRGGBB', or a 3- or 4-tuple of integers."); + return false; } bool wxColour_typecheck(PyObject* source) { if (wxPySimple_typecheck(source, wxT("wxColour"), 3)) - return True; + return true; if (PyString_Check(source) || PyUnicode_Check(source)) - return True; - - return False; + return true; + + return false; } bool wxPoint2D_helper(PyObject* source, wxPoint2D** obj) { + + if (source == Py_None) { + **obj = wxPoint2D(-1,-1); + return true; + } + // If source is an object instance then it may already be the right type if (wxPySwigInstance_Check(source)) { wxPoint2D* ptr; if (! wxPyConvertSwigPtr(source, (void **)&ptr, wxT("wxPoint2D"))) goto error; *obj = ptr; - return True; + return true; } // otherwise a length-2 sequence of floats is expected if (PySequence_Check(source) && PySequence_Length(source) == 2) { @@ -2390,11 +2609,11 @@ bool wxPoint2D_helper(PyObject* source, wxPoint2D** obj) { **obj = wxPoint2D(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2)); Py_DECREF(o1); Py_DECREF(o2); - return True; + return true; } error: PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of floats or a wxPoint2D object."); - return False; + return false; } @@ -2428,6 +2647,201 @@ PyObject* wxArrayInt2PyList_helper(const wxArrayInt& arr) { } +//---------------------------------------------------------------------- +// 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; +} + + +//---------------------------------------------------------------------- +// Function to test if the Display (or whatever is the platform equivallent) +// can be connected to. This is accessable from wxPython as a staticmethod of +// wx.App called DisplayAvailable(). + + +bool wxPyTestDisplayAvailable() +{ +#ifdef __WXGTK__ + Display* display; + display = XOpenDisplay(NULL); + if (display == NULL) + return false; + XCloseDisplay(display); + return true; +#endif + +#ifdef __WXMAC__ + // This is adapted from Python's Mac/Modules/MacOS.c in the + // MacOS_WMAvailable function. + bool rv; + ProcessSerialNumber psn; + + /* + ** This is a fairly innocuous call to make if we don't have a window + ** manager, or if we have no permission to talk to it. It will print + ** a message on stderr, but at least it won't abort the process. + ** It appears the function caches the result itself, and it's cheap, so + ** no need for us to cache. + */ +#ifdef kCGNullDirectDisplay + /* On 10.1 CGMainDisplayID() isn't available, and + ** kCGNullDirectDisplay isn't defined. + */ + if (CGMainDisplayID() == 0) { + rv = false; + } else +#endif + { + // Also foreground the application on the first call as a side-effect. + if (GetCurrentProcess(&psn) < 0 || SetFrontProcess(&psn) < 0) { + rv = false; + } else { + rv = true; + } + } + return rv; +#endif + +#ifdef __WXMSW__ + // TODO... + return true; +#endif +} + + //---------------------------------------------------------------------- //----------------------------------------------------------------------