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99b1023fd8d786e74f369069e33e4cb06a8fe45a
wxWidgets/wxPython/src/helpers.cpp
Robin Dunn 89c876de1c wxGTK now uses gtk_init_check so wxPython can raise an exception if 
there is no DISPLAY available or other initializaion problem.

wx.GetKeyState now has an implementation for wxGTK and is able to
detect the up/down or toggle state of modifier and toggle keys.

The LC_NUMERIC locale is now reset back to "C" (compatibility) when
running on wxGTK to work around the fact that GTK requires the locale
to be set to the system settings but Python depends on LC_NUMERIC
remaining compatible with "C".


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@27376 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2004-05-21 00:23:50 +00:00

2597 lines
74 KiB
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/////////////////////////////////////////////////////////////////////////////
// Name: helpers.cpp
// Purpose: Helper functions/classes for the wxPython extension module
//
// Author: Robin Dunn
//
// Created: 1-July-1997
// RCS-ID: $Id$
// Copyright: (c) 1998 by Total Control Software
// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
#undef DEBUG
#include <Python.h>
#include "wx/wxPython/wxPython_int.h"
#include "wx/wxPython/pyistream.h"
#ifdef __WXMSW__
#include <wx/msw/private.h>
#include <wx/msw/winundef.h>
#include <wx/msw/msvcrt.h>
#endif
#ifdef __WXGTK__
#include <gdk/gdk.h>
#include <gdk/gdkx.h>
#include <gtk/gtk.h>
#include <gdk/gdkprivate.h>
#include <wx/gtk/win_gtk.h>
#define GetXWindow(wxwin) GDK_WINDOW_XWINDOW((wxwin)->m_widget->window)
#include <locale.h>
#endif
#ifdef __WXX11__
#include "wx/x11/privx.h"
#define GetXWindow(wxwin) ((Window)(wxwin)->GetHandle())
#endif
#ifdef __WXMAC__
#include <wx/mac/private.h>
#endif
#include <wx/clipbrd.h>
#include <wx/mimetype.h>
#include <wx/image.h>
//----------------------------------------------------------------------
#if PYTHON_API_VERSION <= 1007 && 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;
#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
static PyObject* wxPython_dict = NULL;
static PyObject* wxPyAssertionError = NULL;
PyObject* wxPyPtrTypeMap = NULL;
#ifdef __WXMSW__ // If building for win32...
//----------------------------------------------------------------------
// This gets run when the DLL is loaded. We just need to save a handle.
//----------------------------------------------------------------------
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 (! wxGetInstance())
wxSetInstance(hinstDLL);
return True;
}
#endif
//----------------------------------------------------------------------
// Classes for implementing the wxp main application shell.
//----------------------------------------------------------------------
IMPLEMENT_ABSTRACT_CLASS(wxPyApp, wxApp);
wxPyApp::wxPyApp() {
m_assertMode = wxPYAPP_ASSERT_EXCEPTION;
m_startupComplete = False;
}
wxPyApp::~wxPyApp() {
}
// This one isn't acutally called... We fake it with _BootstrapApp
bool wxPyApp::OnInit() {
return False;
}
int wxPyApp::MainLoop() {
int retval = 0;
DeletePendingObjects();
bool initialized = wxTopLevelWindows.GetCount() != 0;
if (initialized) {
if ( m_exitOnFrameDelete == Later ) {
m_exitOnFrameDelete = Yes;
}
retval = wxApp::MainLoop();
OnExit();
}
return retval;
}
bool wxPyApp::OnInitGui() {
bool rval=True;
wxApp::OnInitGui(); // in this case always call the base class version
bool blocked = wxPyBeginBlockThreads();
if (wxPyCBH_findCallback(m_myInst, "OnInitGui"))
rval = wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
wxPyEndBlockThreads(blocked);
return rval;
}
int wxPyApp::OnExit() {
int rval=0;
bool blocked = wxPyBeginBlockThreads();
if (wxPyCBH_findCallback(m_myInst, "OnExit"))
rval = wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
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) {
// 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;
}
wxLogDebug(buf);
return;
}
// If the OnAssert is overloaded in the Python class then call it...
bool found;
bool blocked = wxPyBeginBlockThreads();
if ((found = wxPyCBH_findCallback(m_myInst, "OnAssert"))) {
PyObject* fso = wx2PyString(file);
PyObject* cso = wx2PyString(file);
PyObject* mso;
if (msg != NULL)
mso = wx2PyString(file);
else {
mso = Py_None; Py_INCREF(Py_None);
}
wxPyCBH_callCallback(m_myInst, Py_BuildValue("(OiOO)", fso, line, cso, mso));
Py_DECREF(fso);
Py_DECREF(cso);
Py_DECREF(mso);
}
wxPyEndBlockThreads(blocked);
// ...otherwise do our own thing with it
if (! found) {
// ignore it?
if (m_assertMode & wxPYAPP_ASSERT_SUPPRESS)
return;
// turn it into a Python exception?
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;
}
// set the exception
bool blocked = wxPyBeginBlockThreads();
PyObject* s = wx2PyString(buf);
PyErr_SetObject(wxPyAssertionError, s);
Py_DECREF(s);
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
// NULL, signalling the exception to Python.
}
// Send it to the normal log destination, but only if
// not _DIALOG because it will call this too
if ( (m_assertMode & wxPYAPP_ASSERT_LOG) && !(m_assertMode & wxPYAPP_ASSERT_DIALOG)) {
wxString buf;
buf.Alloc(4096);
buf.Printf(wxT("%s(%d): assert \"%s\" failed"),
file, line, cond);
if (msg != NULL) {
buf += wxT(": ");
buf += msg;
}
wxLogDebug(buf);
}
// do the normal wx assert dialog?
if (m_assertMode & wxPYAPP_ASSERT_DIALOG)
wxApp::OnAssert(file, line, cond, msg);
}
}
#endif
// For catching Apple Events
void wxPyApp::MacOpenFile(const wxString &fileName)
{
bool 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)
{
bool 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()
{
bool blocked = wxPyBeginBlockThreads();
if (wxPyCBH_findCallback(m_myInst, "MacNewFile"))
wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
wxPyEndBlockThreads(blocked);
}
void wxPyApp::MacReopenApp()
{
bool blocked = wxPyBeginBlockThreads();
if (wxPyCBH_findCallback(m_myInst, "MacReopenApp"))
wxPyCBH_callCallback(m_myInst, Py_BuildValue("()"));
wxPyEndBlockThreads(blocked);
}
/*static*/
bool wxPyApp::GetMacSupportPCMenuShortcuts() {
#ifdef __WXMAC__
return s_macSupportPCMenuShortcuts;
#else
return 0;
#endif
}
/*static*/
long wxPyApp::GetMacAboutMenuItemId() {
#ifdef __WXMAC__
return s_macAboutMenuItemId;
#else
return 0;
#endif
}
/*static*/
long wxPyApp::GetMacPreferencesMenuItemId() {
#ifdef __WXMAC__
return s_macPreferencesMenuItemId;
#else
return 0;
#endif
}
/*static*/
long wxPyApp::GetMacExitMenuItemId() {
#ifdef __WXMAC__
return s_macExitMenuItemId;
#else
return 0;
#endif
}
/*static*/
wxString wxPyApp::GetMacHelpMenuTitleName() {
#ifdef __WXMAC__
return s_macHelpMenuTitleName;
#else
return wxEmptyString;
#endif
}
/*static*/
void wxPyApp::SetMacSupportPCMenuShortcuts(bool val) {
#ifdef __WXMAC__
s_macSupportPCMenuShortcuts = val;
#endif
}
/*static*/
void wxPyApp::SetMacAboutMenuItemId(long val) {
#ifdef __WXMAC__
s_macAboutMenuItemId = val;
#endif
}
/*static*/
void wxPyApp::SetMacPreferencesMenuItemId(long val) {
#ifdef __WXMAC__
s_macPreferencesMenuItemId = val;
#endif
}
/*static*/
void wxPyApp::SetMacExitMenuItemId(long val) {
#ifdef __WXMAC__
s_macExitMenuItemId = val;
#endif
}
/*static*/
void wxPyApp::SetMacHelpMenuTitleName(const wxString& val) {
#ifdef __WXMAC__
s_macHelpMenuTitleName = val;
#endif
}
// This finishes the initialization of wxWindows and then calls the OnInit
// that should be present in the derived (Python) class.
void wxPyApp::_BootstrapApp()
{
bool result;
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;
bool blocked = wxPyBeginBlockThreads();
PyObject* sysargv = PySys_GetObject("argv");
if (sysargv != NULL) {
argc = PyList_Size(sysargv);
argv = new char*[argc+1];
int x;
for(x=0; x<argc; x++) {
PyObject *pyArg = PyList_GetItem(sysargv, x);
argv[x] = PyString_AsString(pyArg);
}
argv[argc] = NULL;
}
wxPyEndBlockThreads(blocked);
// Initialize wxWidgets
result = wxEntryStart(argc, argv);
delete [] argv;
blocked = wxPyBeginBlockThreads();
if (! result) {
PyErr_SetString(PyExc_SystemError,
"wxEntryStart failed, unable to initialize wxWidgets!"
#ifdef __WXGTK__
" (Is DISPLAY set properly?)"
#endif
);
goto error;
}
// On wxGTK the locale will be changed to match the system settings, but
// Python needs to have LC_NUMERIC set to "C" in order for the floating
// point conversions and such to work right.
#ifdef __WXGTK__
setlocale(LC_NUMERIC, "C");
#endif
// The stock objects were all NULL when they were loaded into
// SWIG generated proxies, so re-init those now...
wxPy_ReinitStockObjects(3);
// It's now ok to generate exceptions for assertion errors.
wxPythonApp->SetStartupComplete(True);
// Call the Python wxApp's OnInit function
if (wxPyCBH_findCallback(m_myInst, "OnInit")) {
PyObject* method = m_myInst.GetLastFound();
PyObject* argTuple = PyTuple_New(0);
retval = PyEval_CallObject(method, argTuple);
Py_DECREF(argTuple);
Py_DECREF(method);
if (retval == NULL)
goto error;
pyint = PyNumber_Int(retval);
if (! pyint) {
PyErr_SetString(PyExc_TypeError, "OnInit should return a boolean value");
goto error;
}
result = PyInt_AS_LONG(pyint);
}
else {
// Is it okay if there is no OnInit? Probably so...
result = True;
}
if (! result) {
PyErr_SetString(PyExc_SystemExit, "OnInit returned False, exiting...");
}
error:
Py_XDECREF(retval);
Py_XDECREF(pyint);
wxPyEndBlockThreads(blocked);
};
//---------------------------------------------------------------------
//----------------------------------------------------------------------
#if 0
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;
}
#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);
}
#if wxUSE_UNICODE
static wxChar* wxPyCopyWString(const wxChar *src)
{
return copystring(src);
}
#endif
#endif
inline const char* dropwx(const char* name) {
if (name[0] == 'w' && name[1] == 'x')
return name+2;
else
return 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
// wxPyApp::_BootstrapApp
void __wxPyPreStart(PyObject* moduleDict)
{
#ifdef __WXMSW__
// wxCrtSetDbgFlag(_CRTDBG_LEAK_CHECK_DF);
#endif
#ifdef WXP_WITH_THREAD
PyEval_InitThreads();
wxPyTStates = new wxPyThreadStateArray;
wxPyTMutex = new wxMutex;
// Save the current (main) thread state in our array
PyThreadState* tstate = wxPyBeginAllowThreads();
wxPyEndAllowThreads(tstate);
#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;
if (wxPyDoCleanup) {
wxPyDoCleanup = False;
wxEntryCleanup();
}
#ifdef WXP_WITH_THREAD
delete wxPyTMutex;
wxPyTMutex = NULL;
wxPyTStates->Empty();
delete wxPyTStates;
wxPyTStates = NULL;
#endif
}
// 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)
{
if (!PyArg_ParseTuple(args, "O", &wxPython_dict))
return NULL;
if (!PyDict_Check(wxPython_dict)) {
PyErr_SetString(PyExc_TypeError, "_wxPySetDictionary must have dictionary object!");
return NULL;
}
if (! wxPyPtrTypeMap)
wxPyPtrTypeMap = PyDict_New();
PyDict_SetItemString(wxPython_dict, "__wxPyPtrTypeMap", wxPyPtrTypeMap);
// Create an exception object to use for wxASSERTions
wxPyAssertionError = PyErr_NewException("wx._core.PyAssertionError",
PyExc_AssertionError, NULL);
PyDict_SetItemString(wxPython_dict, "PyAssertionError", wxPyAssertionError);
#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
#ifdef __WXMSW__
#define wxPlatform "__WXMSW__"
#define wxPlatName "wxMSW"
#endif
#ifdef __WXMAC__
#define wxPlatform "__WXMAC__"
#define wxPlatName "wxMac"
#endif
#ifdef __WXDEBUG__
int wxdebug = 1;
#else
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));
PyObject* PlatInfo = PyList_New(0);
PyObject* obj;
#define _AddInfoString(st) \
obj = PyString_FromString(st); \
PyList_Append(PlatInfo, obj); \
Py_DECREF(obj)
_AddInfoString(wxPlatform);
_AddInfoString(wxPlatName);
#if wxUSE_UNICODE
_AddInfoString("unicode");
#else
_AddInfoString("ascii");
#endif
#ifdef __WXGTK__
#ifdef __WXGTK20__
_AddInfoString("gtk2");
#else
_AddInfoString("gtk1");
#endif
#endif
#undef _AddInfoString
PyObject* PlatInfoTuple = PyList_AsTuple(PlatInfo);
Py_DECREF(PlatInfo);
PyDict_SetItemString(wxPython_dict, "PlatformInfo", PlatInfoTuple);
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;
}
//---------------------------------------------------------------------------
// 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.
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);
// 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);
}
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); }
// If there is already an App object then wxPython is probably embedded in
// a wx C++ application, so there is no need to do all this.
static bool embedded = false;
if ((pass == 1 || pass == 2) && wxTheApp) {
embedded = true;
return;
}
if (pass == 3 && embedded)
return;
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 wxPyClientData_dtor(wxPyClientData* self) {
if (! wxPyDoingCleanup) { // Don't do it during cleanup as Python
// may have already garbage collected the object...
bool blocked = wxPyBeginBlockThreads();
Py_DECREF(self->m_obj);
self->m_obj = NULL;
wxPyEndBlockThreads(blocked);
}
}
void wxPyUserData_dtor(wxPyUserData* self) {
if (! wxPyDoingCleanup) {
bool blocked = wxPyBeginBlockThreads();
Py_DECREF(self->m_obj);
self->m_obj = NULL;
wxPyEndBlockThreads(blocked);
}
}
// 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 _core_ex.py for the implementation of this class.
void wxPyOORClientData_dtor(wxPyOORClientData* self) {
static PyObject* deadObjectClass = NULL;
bool blocked = wxPyBeginBlockThreads();
if (deadObjectClass == NULL) {
deadObjectClass = PyDict_GetItemString(wxPython_dict, "_wxPyDeadObject");
// TODO: Can not wxASSERT here because inside a wxPyBeginBlock Threads,
// will lead to a deadlock when it tries to aquire the GIL again.
//wxASSERT_MSG(deadObjectClass != NULL, wxT("Can't get _wxPyDeadObject class!"));
Py_INCREF(deadObjectClass);
}
// Only if there is more than one reference to the object
if ( !wxPyDoingCleanup && self->m_obj->ob_refcnt > 1 ) {
// bool isInstance = wxPyInstance_Check(self->m_obj);
// TODO same here
//wxASSERT_MSG(isInstance, wxT("m_obj not an instance!?!?!"));
// Call __del__, if there is one.
PyObject* func = PyObject_GetAttrString(self->m_obj, "__del__");
if (func) {
PyObject* rv = PyObject_CallMethod(self->m_obj, "__del__", NULL);
Py_XDECREF(rv);
Py_DECREF(func);
}
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
PyDict_Clear(dict);
// put the name of the old class into the instance, and then reset the
// class to be the dead class.
PyObject* klass = PyObject_GetAttrString(self->m_obj, "__class__");
PyObject* name = PyObject_GetAttrString(klass, "__name__");
PyDict_SetItemString(dict, "_name", name);
PyObject_SetAttrString(self->m_obj, "__class__", deadObjectClass);
//Py_INCREF(deadObjectClass);
Py_DECREF(klass);
Py_DECREF(name);
}
}
// m_obj is DECREF'd in the base class dtor...
wxPyEndBlockThreads(blocked);
}
//---------------------------------------------------------------------------
// Stuff used by OOR to find the right wxPython class type to return and to
// build it.
// The pointer type map is used when the "pointer" type name generated by SWIG
// 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));
}
PyObject* wxPyMake_wxObject(wxObject* source, bool checkEvtHandler) {
PyObject* target = NULL;
bool isEvtHandler = 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;
wxEvtHandler* eh = (wxEvtHandler*)source;
wxPyOORClientData* data = (wxPyOORClientData*)eh->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
// heirarchy until we find a class name that is located in the
// python module.
const wxClassInfo* info = source->GetClassInfo();
wxString name = info->GetClassName();
bool exists = wxPyCheckSwigType(name);
while (info && !exists) {
info = info->GetBaseClass1();
name = info->GetClassName();
exists = wxPyCheckSwigType(name);
}
if (info) {
target = wxPyConstructObject((void*)source, name, False);
if (target && isEvtHandler)
((wxEvtHandler*)source)->SetClientObject(new wxPyOORClientData(target));
} else {
wxString msg(wxT("wxPython class not found for "));
msg += source->GetClassInfo()->GetClassName();
PyErr_SetString(PyExc_NameError, msg.mbc_str());
target = NULL;
}
}
} else { // source was NULL so return None.
Py_INCREF(Py_None); target = Py_None;
}
return target;
}
PyObject* wxPyMake_wxSizer(wxSizer* source) {
PyObject* target = NULL;
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;
}
//---------------------------------------------------------------------------
#ifdef WXP_WITH_THREAD
inline
unsigned long wxPyGetCurrentThreadId() {
return wxThread::GetCurrentId();
}
static wxPyThreadState gs_shutdownTState;
static
wxPyThreadState* wxPyGetThreadState() {
if (wxPyTMutex == NULL) // Python is shutting down...
return &gs_shutdownTState;
unsigned long ctid = wxPyGetCurrentThreadId();
wxPyThreadState* tstate = NULL;
wxPyTMutex->Lock();
for(size_t i=0; i < wxPyTStates->GetCount(); i++) {
wxPyThreadState& info = wxPyTStates->Item(i);
if (info.tid == ctid) {
tstate = &info;
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 = 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) {
#if 0
if (info.tstate != tstate)
wxLogMessage("*** tstate mismatch!???");
#endif
// info.tstate = tstate; *** DO NOT update existing ones???
// 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;
}
}
// 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
}
// Calls from wxWindows back to Python code, or even any PyObject
// manipulations, PyDECREF's and etc. are wrapped in calls to these functions:
bool wxPyBeginBlockThreads() {
#ifdef WXP_WITH_THREAD
// This works in for 2.3, maybe a good alternative to find the needed tstate?
// PyThreadState *check = PyGILState_GetThisThreadState();
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
bool blocked = false;
wxPyThreadState* tstate = wxPyGetThreadState();
if (current != tstate->tstate) {
PyEval_RestoreThread(tstate->tstate);
blocked = true;
}
return blocked;
#endif
}
void wxPyEndBlockThreads(bool blocked) {
#ifdef WXP_WITH_THREAD
// 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
}
//---------------------------------------------------------------------------
// 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) {
bool blocked = wxPyBeginBlockThreads();
PyErr_SetString(PyExc_IOError, "no valid C-wxInputStream");
wxPyEndBlockThreads(blocked);
return NULL;
}
if (size < 0) {
// read while bytes are available on the stream
while ( m_wxis->CanRead() ) {
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
bool blocked = wxPyBeginBlockThreads();
wxStreamError err = m_wxis->GetLastError();
if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
}
else {
// We use only strings for the streams, not unicode
obj = PyString_FromStringAndSize(buf, buf.GetDataLen());
}
wxPyEndBlockThreads(blocked);
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) {
bool blocked = wxPyBeginBlockThreads();
PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream");
wxPyEndBlockThreads(blocked);
return NULL;
}
// read until \n or byte limit reached
for (i=ch=0; (ch != '\n') && (m_wxis->CanRead()) && ((size < 0) || (i < size)); i++) {
ch = m_wxis->GetC();
buf.AppendByte(ch);
}
// errorcheck
bool blocked = wxPyBeginBlockThreads();
wxStreamError err = m_wxis->GetLastError();
if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
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());
}
wxPyEndBlockThreads(blocked);
return obj;
}
PyObject* wxPyInputStream::readlines(int sizehint) {
PyObject* pylist;
// check if we have a real wxInputStream to work with
if (!m_wxis) {
bool blocked = wxPyBeginBlockThreads();
PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream");
wxPyEndBlockThreads(blocked);
return NULL;
}
// init list
bool blocked = wxPyBeginBlockThreads();
pylist = PyList_New(0);
wxPyEndBlockThreads(blocked);
if (!pylist) {
bool blocked = wxPyBeginBlockThreads();
PyErr_NoMemory();
wxPyEndBlockThreads(blocked);
return NULL;
}
// read sizehint bytes or until EOF
int i;
for (i=0; (m_wxis->CanRead()) && ((sizehint < 0) || (i < sizehint));) {
PyObject* s = this->readline();
if (s == NULL) {
bool blocked = wxPyBeginBlockThreads();
Py_DECREF(pylist);
wxPyEndBlockThreads(blocked);
return NULL;
}
bool blocked = wxPyBeginBlockThreads();
PyList_Append(pylist, s);
i += PyString_Size(s);
wxPyEndBlockThreads(blocked);
}
// error check
wxStreamError err = m_wxis->GetLastError();
if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) {
bool blocked = wxPyBeginBlockThreads();
Py_DECREF(pylist);
PyErr_SetString(PyExc_IOError,"IOError in wxInputStream");
wxPyEndBlockThreads(blocked);
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() {
bool blocked;
if (m_block) blocked = wxPyBeginBlockThreads();
Py_XDECREF(m_read);
Py_XDECREF(m_seek);
Py_XDECREF(m_tell);
if (m_block) wxPyEndBlockThreads(blocked);
}
wxPyCBInputStream* wxPyCBInputStream::create(PyObject *py, bool block) {
bool blocked;
if (block) blocked = 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(blocked);
return NULL;
}
if (block) wxPyEndBlockThreads(blocked);
return new wxPyCBInputStream(read, seek, tell, block);
}
wxPyCBInputStream* wxPyCBInputStream_create(PyObject *py, bool block) {
return wxPyCBInputStream::create(py, 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;
bool blocked = 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(blocked);
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) {
bool blocked = 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
PyObject* result = PyEval_CallObject(m_seek, arglist);
Py_DECREF(arglist);
Py_XDECREF(result);
wxPyEndBlockThreads(blocked);
return OnSysTell();
}
off_t wxPyCBInputStream::OnSysTell() const {
bool blocked = wxPyBeginBlockThreads();
PyObject* arglist = Py_BuildValue("()");
PyObject* result = PyEval_CallObject(m_tell, arglist);
Py_DECREF(arglist);
off_t o = 0;
if (result != NULL) {
#ifdef _LARGE_FILES
if (PyLong_Check(result))
o = PyLong_AsLongLong(result);
else
#endif
o = PyInt_AsLong(result);
Py_DECREF(result);
};
wxPyEndBlockThreads(blocked);
return o;
}
//----------------------------------------------------------------------
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 blocked = wxPyBeginBlockThreads();
Py_DECREF(m_func);
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) {
wxPyCallback* cb = (wxPyCallback*)event.m_callbackUserData;
PyObject* func = cb->m_func;
PyObject* result;
PyObject* arg;
PyObject* tuple;
bool checkSkip = False;
bool blocked = wxPyBeginBlockThreads();
wxString className = event.GetClassInfo()->GetClassName();
// If the event is one of these types then pass the original
// event object instead of the one passed to us.
if ( className == wxT("wxPyEvent") ) {
arg = ((wxPyEvent*)&event)->GetSelf();
checkSkip = ((wxPyEvent*)&event)->GetCloned();
}
else if ( className == wxT("wxPyCommandEvent") ) {
arg = ((wxPyCommandEvent*)&event)->GetSelf();
checkSkip = ((wxPyCommandEvent*)&event)->GetCloned();
}
else {
arg = wxPyConstructObject((void*)&event, className);
}
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
result = PyEval_CallObject(func, tuple);
if ( result ) {
Py_DECREF(result); // result is ignored, but we still need to decref it
PyErr_Clear(); // Just in case...
} else {
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
// value from the original and set it in the clone.
result = PyObject_CallMethod(arg, "GetSkipped", "");
if ( result ) {
event.Skip(PyInt_AsLong(result));
Py_DECREF(result);
} else {
PyErr_Print();
}
}
Py_DECREF(tuple);
}
wxPyEndBlockThreads(blocked);
}
//----------------------------------------------------------------------
wxPyCallbackHelper::wxPyCallbackHelper(const wxPyCallbackHelper& other) {
m_lastFound = NULL;
m_self = other.m_self;
m_class = other.m_class;
if (m_self) {
Py_INCREF(m_self);
Py_INCREF(m_class);
}
}
void wxPyCallbackHelper::setSelf(PyObject* self, PyObject* klass, int incref) {
m_self = self;
m_class = klass;
m_incRef = incref;
if (incref) {
Py_INCREF(m_self);
Py_INCREF(m_class);
}
}
#if PYTHON_API_VERSION >= 1011
// 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 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 actually defined...
static
PyObject* PyFindClassWithAttr(PyObject *klass, PyObject *name)
{
int i, n;
if (PyType_Check(klass)) { // new style classes
// This code is borrowed/adapted from _PyType_Lookup in typeobject.c
PyTypeObject* type = (PyTypeObject*)klass;
PyObject *mro, *res, *base, *dict;
/* Look in tp_dict of types in MRO */
mro = type->tp_mro;
assert(PyTuple_Check(mro));
n = PyTuple_GET_SIZE(mro);
for (i = 0; i < n; i++) {
base = PyTuple_GET_ITEM(mro, i);
if (PyClass_Check(base))
dict = ((PyClassObject *)base)->cl_dict;
else {
assert(PyType_Check(base));
dict = ((PyTypeObject *)base)->tp_dict;
}
assert(dict && PyDict_Check(dict));
res = PyDict_GetItem(dict, name);
if (res != NULL)
return base;
}
return NULL;
}
else if (PyClass_Check(klass)) { // old style classes
// This code is borrowed/adapted from class_lookup in classobject.c
PyClassObject* cp = (PyClassObject*)klass;
PyObject *value = PyDict_GetItem(cp->cl_dict, name);
if (value != NULL) {
return (PyObject*)cp;
}
n = PyTuple_Size(cp->cl_bases);
for (i = 0; i < n; i++) {
PyObject* base = PyTuple_GetItem(cp->cl_bases, i);
PyObject *v = PyFindClassWithAttr(base, name);
if (v != NULL)
return v;
}
return NULL;
}
return NULL;
}
#endif
static
PyObject* PyMethod_GetDefiningClass(PyObject* method, const char* name)
{
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;
#endif
}
bool wxPyCallbackHelper::findCallback(const char* name) const {
wxPyCallbackHelper* self = (wxPyCallbackHelper*)this; // cast away const
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);
// ...and if that attribute is a method, and if that method's class is
// not from 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.
self->m_lastFound = method;
}
else {
Py_DECREF(method);
}
}
return m_lastFound != NULL;
}
int wxPyCallbackHelper::callCallback(PyObject* argTuple) const {
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 manage the GIL.
PyObject* wxPyCallbackHelper::callCallbackObj(PyObject* argTuple) const {
PyObject* result;
// Save a copy of the pointer in case the callback generates another
// callback. In that case m_lastFound will have a different value when
// it gets back here...
PyObject* method = m_lastFound;
result = PyEval_CallObject(method, argTuple);
Py_DECREF(argTuple);
Py_DECREF(method);
if (!result) {
PyErr_Print();
}
return result;
}
void wxPyCBH_setCallbackInfo(wxPyCallbackHelper& cbh, PyObject* self, PyObject* klass, int incref) {
cbh.setSelf(self, klass, incref);
}
bool wxPyCBH_findCallback(const wxPyCallbackHelper& cbh, const char* name) {
return cbh.findCallback(name);
}
int wxPyCBH_callCallback(const wxPyCallbackHelper& cbh, PyObject* argTuple) {
return cbh.callCallback(argTuple);
}
PyObject* wxPyCBH_callCallbackObj(const wxPyCallbackHelper& cbh, PyObject* argTuple) {
return cbh.callCallbackObj(argTuple);
}
void wxPyCBH_delete(wxPyCallbackHelper* cbh) {
if (cbh->m_incRef) {
bool blocked = wxPyBeginBlockThreads();
Py_XDECREF(cbh->m_self);
Py_XDECREF(cbh->m_class);
wxPyEndBlockThreads(blocked);
}
}
//---------------------------------------------------------------------------
//---------------------------------------------------------------------------
// These event classes can be derived from in Python and passed through the event
// system without losing 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 blocked = wxPyBeginBlockThreads();
if (m_cloned)
Py_DECREF(m_self);
wxPyEndBlockThreads(blocked);
}
void wxPyEvtSelfRef::SetSelf(PyObject* self, bool clone) {
bool blocked = wxPyBeginBlockThreads();
if (m_cloned)
Py_DECREF(m_self);
m_self = self;
if (clone) {
Py_INCREF(m_self);
m_cloned = True;
}
wxPyEndBlockThreads(blocked);
}
PyObject* wxPyEvtSelfRef::GetSelf() const {
Py_INCREF(m_self);
return m_self;
}
IMPLEMENT_ABSTRACT_CLASS(wxPyEvent, wxEvent);
IMPLEMENT_ABSTRACT_CLASS(wxPyCommandEvent, wxCommandEvent);
wxPyEvent::wxPyEvent(int winid, wxEventType commandType)
: wxEvent(winid, commandType) {
}
wxPyEvent::wxPyEvent(const wxPyEvent& evt)
: wxEvent(evt)
{
SetSelf(evt.m_self, True);
}
wxPyEvent::~wxPyEvent() {
}
wxPyCommandEvent::wxPyCommandEvent(wxEventType commandType, int id)
: wxCommandEvent(commandType, id) {
}
wxPyCommandEvent::wxPyCommandEvent(const wxPyCommandEvent& evt)
: wxCommandEvent(evt)
{
SetSelf(evt.m_self, True);
}
wxPyCommandEvent::~wxPyCommandEvent() {
}
//---------------------------------------------------------------------------
//---------------------------------------------------------------------------
// Convert a wxList to a Python List, only works for lists of wxObjects
PyObject* wxPy_ConvertList(wxListBase* listbase) {
wxList* list = (wxList*)listbase; // this is probably bad...
PyObject* pyList;
PyObject* pyObj;
wxObject* wxObj;
wxNode* node = list->GetFirst();
bool blocked = wxPyBeginBlockThreads();
pyList = PyList_New(0);
while (node) {
wxObj = node->GetData();
pyObj = wxPyMake_wxObject(wxObj);
PyList_Append(pyList, pyObj);
node = node->GetNext();
}
wxPyEndBlockThreads(blocked);
return pyList;
}
//----------------------------------------------------------------------
long wxPyGetWinHandle(wxWindow* win) {
#ifdef __WXMSW__
return (long)win->GetHandle();
#endif
#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;
}
//----------------------------------------------------------------------
// Some helper functions for typemaps in my_typemaps.i, so they won't be
// included in every file over and over again...
wxString* wxString_in_helper(PyObject* source) {
wxString* target = NULL;
if (!PyString_Check(source) && !PyUnicode_Check(source)) {
PyErr_SetString(PyExc_TypeError, "String or Unicode type required");
return NULL;
}
#if wxUSE_UNICODE
PyObject* uni = source;
if (PyString_Check(source)) {
uni = PyUnicode_FromObject(source);
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();
}
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;
}
target = new wxString(tmpPtr, tmpSize);
#endif // wxUSE_UNICODE
return target;
}
// Similar to above except doesn't use "new" and doesn't set an exception
wxString Py2wxString(PyObject* source)
{
wxString target;
#if wxUSE_UNICODE
// Convert to a unicode object, if not already, then to a wxString
PyObject* uni = source;
if (!PyUnicode_Check(source)) {
uni = PyUnicode_FromObject(source);
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 (!PyUnicode_Check(source))
Py_DECREF(uni);
#else
// Convert to a string object if it isn't already, then to wxString
PyObject* str = source;
if (!PyString_Check(source)) {
str = PyObject_Str(source);
if (PyErr_Occurred()) return wxEmptyString; // TODO: should we PyErr_Clear?
}
char* tmpPtr; int tmpSize;
PyString_AsStringAndSize(str, &tmpPtr, &tmpSize);
target = wxString(tmpPtr, tmpSize);
if (!PyString_Check(source))
Py_DECREF(str);
#endif // wxUSE_UNICODE
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_FromWideChar(src.c_str(), src.Len());
#else
str = PyString_FromStringAndSize(src.c_str(), src.Len());
#endif
return str;
}
//----------------------------------------------------------------------
byte* byte_LIST_helper(PyObject* source) {
if (!PyList_Check(source)) {
PyErr_SetString(PyExc_TypeError, "Expected a list object.");
return NULL;
}
int count = PyList_Size(source);
byte* temp = new byte[count];
if (! temp) {
PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
return NULL;
}
for (int x=0; x<count; x++) {
PyObject* o = PyList_GetItem(source, x);
if (! PyInt_Check(o)) {
PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
return NULL;
}
temp[x] = (byte)PyInt_AsLong(o);
}
return temp;
}
int* int_LIST_helper(PyObject* source) {
if (!PyList_Check(source)) {
PyErr_SetString(PyExc_TypeError, "Expected a list object.");
return NULL;
}
int count = PyList_Size(source);
int* temp = new int[count];
if (! temp) {
PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
return NULL;
}
for (int x=0; x<count; x++) {
PyObject* o = PyList_GetItem(source, x);
if (! PyInt_Check(o)) {
PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
return NULL;
}
temp[x] = PyInt_AsLong(o);
}
return temp;
}
long* long_LIST_helper(PyObject* source) {
if (!PyList_Check(source)) {
PyErr_SetString(PyExc_TypeError, "Expected a list object.");
return NULL;
}
int count = PyList_Size(source);
long* temp = new long[count];
if (! temp) {
PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
return NULL;
}
for (int x=0; x<count; x++) {
PyObject* o = PyList_GetItem(source, x);
if (! PyInt_Check(o)) {
PyErr_SetString(PyExc_TypeError, "Expected a list of integers.");
return NULL;
}
temp[x] = PyInt_AsLong(o);
}
return temp;
}
char** string_LIST_helper(PyObject* source) {
if (!PyList_Check(source)) {
PyErr_SetString(PyExc_TypeError, "Expected a list object.");
return NULL;
}
int count = PyList_Size(source);
char** temp = new char*[count];
if (! temp) {
PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
return NULL;
}
for (int x=0; x<count; x++) {
PyObject* o = PyList_GetItem(source, x);
if (! PyString_Check(o)) {
PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
return NULL;
}
temp[x] = PyString_AsString(o);
}
return temp;
}
//--------------------------------
// Part of patch from Tim Hochberg
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;
}
if (PyFloat_Check(o1) && PyFloat_Check(o2)) {
point->x = (int)PyFloat_AS_DOUBLE(o1);
point->y = (int)PyFloat_AS_DOUBLE(o2);
return True;
}
if (wxPySwigInstance_Check(o1) || wxPySwigInstance_Check(o2)) { // TODO: Why???
// Disallow instances because they can cause havok
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 False;
}
wxPoint* wxPoint_LIST_helper(PyObject* source, int *count) {
// Putting all of the declarations here allows
// us to put the error handling all in one place.
int x;
wxPoint* temp;
PyObject *o, *o1, *o2;
bool isFast = PyList_Check(source) || PyTuple_Check(source);
if (!PySequence_Check(source)) {
goto error0;
}
// The length of the sequence is returned in count.
*count = PySequence_Length(source);
if (*count < 0) {
goto error0;
}
temp = new wxPoint[*count];
if (!temp) {
PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
return NULL;
}
for (x=0; x<*count; x++) {
// Get an item: try fast way first.
if (isFast) {
o = PySequence_Fast_GET_ITEM(source, x);
}
else {
o = PySequence_GetItem(source, x);
if (o == NULL) {
goto error1;
}
}
// Convert o to wxPoint.
if ((PyTuple_Check(o) && PyTuple_GET_SIZE(o) == 2) ||
(PyList_Check(o) && PyList_GET_SIZE(o) == 2)) {
o1 = PySequence_Fast_GET_ITEM(o, 0);
o2 = PySequence_Fast_GET_ITEM(o, 1);
if (!wxPointFromObjects(o1, o2, &temp[x])) {
goto error2;
}
}
else if (wxPySwigInstance_Check(o)) {
wxPoint* pt;
if (! wxPyConvertSwigPtr(o, (void **)&pt, wxT("wxPoint"))) {
goto error2;
}
temp[x] = *pt;
}
else if (PySequence_Check(o) && PySequence_Length(o) == 2) {
o1 = PySequence_GetItem(o, 0);
o2 = PySequence_GetItem(o, 1);
if (!wxPointFromObjects(o1, o2, &temp[x])) {
goto error3;
}
Py_DECREF(o1);
Py_DECREF(o2);
}
else {
goto error2;
}
// Clean up.
if (!isFast)
Py_DECREF(o);
}
return temp;
error3:
Py_DECREF(o1);
Py_DECREF(o2);
error2:
if (!isFast)
Py_DECREF(o);
error1:
delete [] temp;
error0:
PyErr_SetString(PyExc_TypeError, "Expected a sequence of length-2 sequences or wxPoints.");
return NULL;
}
// end of patch
//------------------------------
wxBitmap** wxBitmap_LIST_helper(PyObject* source) {
if (!PyList_Check(source)) {
PyErr_SetString(PyExc_TypeError, "Expected a list object.");
return NULL;
}
int count = PyList_Size(source);
wxBitmap** temp = new wxBitmap*[count];
if (! temp) {
PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
return NULL;
}
for (int x=0; x<count; x++) {
PyObject* o = PyList_GetItem(source, x);
if (wxPySwigInstance_Check(o)) {
wxBitmap* pt;
if (! wxPyConvertSwigPtr(o, (void **) &pt, wxT("wxBitmap"))) {
PyErr_SetString(PyExc_TypeError,"Expected wxBitmap.");
return NULL;
}
temp[x] = pt;
}
else {
PyErr_SetString(PyExc_TypeError, "Expected a list of wxBitmaps.");
return NULL;
}
}
return temp;
}
wxString* wxString_LIST_helper(PyObject* source) {
if (!PyList_Check(source)) {
PyErr_SetString(PyExc_TypeError, "Expected a list object.");
return NULL;
}
int count = PyList_Size(source);
wxString* temp = new wxString[count];
if (! temp) {
PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
return NULL;
}
for (int x=0; x<count; x++) {
PyObject* o = PyList_GetItem(source, x);
#if PYTHON_API_VERSION >= 1009
if (! PyString_Check(o) && ! PyUnicode_Check(o)) {
PyErr_SetString(PyExc_TypeError, "Expected a list of string or unicode objects.");
return NULL;
}
#else
if (! PyString_Check(o)) {
PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
return NULL;
}
#endif
wxString* pStr = wxString_in_helper(o);
temp[x] = *pStr;
delete pStr;
}
return temp;
}
wxAcceleratorEntry* wxAcceleratorEntry_LIST_helper(PyObject* source) {
if (!PyList_Check(source)) {
PyErr_SetString(PyExc_TypeError, "Expected a list object.");
return NULL;
}
int count = PyList_Size(source);
wxAcceleratorEntry* temp = new wxAcceleratorEntry[count];
if (! temp) {
PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
return NULL;
}
for (int x=0; x<count; x++) {
PyObject* o = PyList_GetItem(source, x);
if (wxPySwigInstance_Check(o)) {
wxAcceleratorEntry* ae;
if (! wxPyConvertSwigPtr(o, (void **) &ae, wxT("wxAcceleratorEntry"))) {
PyErr_SetString(PyExc_TypeError,"Expected wxAcceleratorEntry.");
return NULL;
}
temp[x] = *ae;
}
else if (PyTuple_Check(o)) {
PyObject* o1 = PyTuple_GetItem(o, 0);
PyObject* o2 = PyTuple_GetItem(o, 1);
PyObject* o3 = PyTuple_GetItem(o, 2);
temp[x].Set(PyInt_AsLong(o1), PyInt_AsLong(o2), PyInt_AsLong(o3));
}
else {
PyErr_SetString(PyExc_TypeError, "Expected a list of 3-tuples or wxAcceleratorEntry objects.");
return NULL;
}
}
return temp;
}
wxPen** wxPen_LIST_helper(PyObject* source) {
if (!PyList_Check(source)) {
PyErr_SetString(PyExc_TypeError, "Expected a list object.");
return NULL;
}
int count = PyList_Size(source);
wxPen** temp = new wxPen*[count];
if (!temp) {
PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array");
return NULL;
}
for (int x=0; x<count; x++) {
PyObject* o = PyList_GetItem(source, x);
if (wxPySwigInstance_Check(o)) {
wxPen* pt;
if (! wxPyConvertSwigPtr(o, (void **)&pt, wxT("wxPen"))) {
delete temp;
PyErr_SetString(PyExc_TypeError,"Expected wxPen.");
return NULL;
}
temp[x] = pt;
}
else {
delete temp;
PyErr_SetString(PyExc_TypeError, "Expected a list of wxPens.");
return NULL;
}
}
return temp;
}
bool wxPy2int_seq_helper(PyObject* source, int* i1, int* i2) {
bool isFast = PyList_Check(source) || PyTuple_Check(source);
PyObject *o1, *o2;
if (!PySequence_Check(source) || PySequence_Length(source) != 2)
return False;
if (isFast) {
o1 = PySequence_Fast_GET_ITEM(source, 0);
o2 = PySequence_Fast_GET_ITEM(source, 1);
}
else {
o1 = PySequence_GetItem(source, 0);
o2 = PySequence_GetItem(source, 1);
}
*i1 = PyInt_AsLong(o1);
*i2 = PyInt_AsLong(o2);
if (! isFast) {
Py_DECREF(o1);
Py_DECREF(o2);
}
return True;
}
bool wxPy4int_seq_helper(PyObject* source, int* i1, int* i2, int* i3, int* i4) {
bool isFast = PyList_Check(source) || PyTuple_Check(source);
PyObject *o1, *o2, *o3, *o4;
if (!PySequence_Check(source) || PySequence_Length(source) != 4)
return False;
if (isFast) {
o1 = PySequence_Fast_GET_ITEM(source, 0);
o2 = PySequence_Fast_GET_ITEM(source, 1);
o3 = PySequence_Fast_GET_ITEM(source, 2);
o4 = PySequence_Fast_GET_ITEM(source, 3);
}
else {
o1 = PySequence_GetItem(source, 0);
o2 = PySequence_GetItem(source, 1);
o3 = PySequence_GetItem(source, 2);
o4 = PySequence_GetItem(source, 3);
}
*i1 = PyInt_AsLong(o1);
*i2 = PyInt_AsLong(o2);
*i3 = PyInt_AsLong(o3);
*i4 = PyInt_AsLong(o4);
if (! isFast) {
Py_DECREF(o1);
Py_DECREF(o2);
Py_DECREF(o3);
Py_DECREF(o4);
}
return True;
}
//----------------------------------------------------------------------
bool wxPySimple_typecheck(PyObject* source, const wxChar* classname, int seqLen)
{
void* ptr;
if (wxPySwigInstance_Check(source) &&
wxPyConvertSwigPtr(source, (void **)&ptr, classname))
return True;
PyErr_Clear();
if (PySequence_Check(source) && PySequence_Length(source) == seqLen)
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"));
}
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;
}
// otherwise a 2-tuple of floats is expected
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;
}
error:
PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of floats or a wxRealPoint object.");
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;
}
// otherwise a 4-tuple of integers is expected
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 = wxRect(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 4-tuple of integers or a wxRect object.");
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;
}
// otherwise check for a string
else if (PyString_Check(source) || PyUnicode_Check(source)) {
wxString spec = Py2wxString(source);
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;
}
else { // it's a colour name
**obj = wxColour(spec);
return True;
}
}
// last chance: 3-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);
PyObject* o3 = PySequence_GetItem(source, 2);
if (!PyNumber_Check(o1) || !PyNumber_Check(o2) || !PyNumber_Check(o3)) {
Py_DECREF(o1);
Py_DECREF(o2);
Py_DECREF(o3);
goto error;
}
**obj = wxColour(PyInt_AsLong(o1), PyInt_AsLong(o2), PyInt_AsLong(o3));
Py_DECREF(o1);
Py_DECREF(o2);
Py_DECREF(o3);
return True;
}
error:
PyErr_SetString(PyExc_TypeError,
"Expected a wxColour object or a string containing a colour name or '#RRGGBB'.");
return False;
}
bool wxColour_typecheck(PyObject* source) {
if (wxPySimple_typecheck(source, wxT("wxColour"), 3))
return True;
if (PyString_Check(source) || PyUnicode_Check(source))
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;
}
// otherwise a length-2 sequence of floats is expected
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 floats, not numbers -- but that would break code.
if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
Py_DECREF(o1);
Py_DECREF(o2);
goto error;
}
**obj = wxPoint2D(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2));
Py_DECREF(o1);
Py_DECREF(o2);
return True;
}
error:
PyErr_SetString(PyExc_TypeError, "Expected a 2-tuple of floats or a wxPoint2D object.");
return False;
}
//----------------------------------------------------------------------
PyObject* wxArrayString2PyList_helper(const wxArrayString& arr) {
PyObject* list = PyList_New(0);
for (size_t i=0; i < arr.GetCount(); i++) {
#if wxUSE_UNICODE
PyObject* str = PyUnicode_FromWideChar(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);
}
return list;
}
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;
}
//----------------------------------------------------------------------
//----------------------------------------------------------------------
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