//----------------------------------------------------------------------
// Name: embedded.cpp
-// Purpose: To server as an example of how to use wxPython from
+// Purpose: To serve as an example of how to use wxPython from
// within a C++ wxWindows program.
//
// Author: Robin Dunn
// Licence: wxWindows license
//----------------------------------------------------------------------
+#include <Python.h>
+
+
// For compilers that support precompilation, includes "wx/wx.h".
#include <wx/wxprec.h>
#endif
// Import Python and wxPython headers
-#include <Python.h>
-#include <wxPython.h>
+#include <wx/wxPython/wxPython.h>
+
//----------------------------------------------------------------------
// Class definitions
{
public:
virtual bool OnInit();
- virtual ~MyApp();
- void Init_wxPython();
+ virtual int OnExit();
+ bool Init_wxPython();
private:
- PyThreadState* main_tstate;
+ PyThreadState* m_mainTState;
};
bool MyApp::OnInit()
{
- Init_wxPython();
+ if ( !Init_wxPython() )
+ // don't start the app if we can't initialize wxPython.
+ return false;
+
MyFrame *frame = new MyFrame(_T("Embedded wxPython Test"),
- wxPoint(50, 50), wxSize(700, 600));
- frame->Show(TRUE);
- return TRUE;
+ wxDefaultPosition, wxSize(700, 600));
+ frame->Show(true);
+ return true;
}
-void MyApp::Init_wxPython()
+
+bool MyApp::Init_wxPython()
{
// Initialize Python
Py_Initialize();
PyEval_InitThreads();
- // Load the wxPython core API. Imports the wxPython.wxc
- // module and sets a pointer to a function table located there.
- wxPyCoreAPI_IMPORT();
-
+ // Load the wxPython core API. Imports the wx._core_ module and sets a
+ // local pointer to a function table located there. The pointer is used
+ // internally by the rest of the API functions.
+ if ( ! wxPyCoreAPI_IMPORT() ) {
+ wxLogError(wxT("***** Error importing the wxPython API! *****"));
+ PyErr_Print();
+ Py_Finalize();
+ return false;
+ }
+
// Save the current Python thread state and release the
// Global Interpreter Lock.
- main_tstate = wxPyBeginAllowThreads();
+ m_mainTState = wxPyBeginAllowThreads();
+
+ return true;
}
-MyApp::~MyApp()
+int MyApp::OnExit()
{
// Restore the thread state and tell Python to cleanup after itself.
- wxPyEndAllowThreads(main_tstate);
+ // wxPython will do its own cleanup as part of that process. This is done
+ // in OnExit instead of ~MyApp because OnExit is only called if OnInit is
+ // successful.
+ wxPyEndAllowThreads(m_mainTState);
Py_Finalize();
+ return 0;
}
+
IMPLEMENT_APP(MyApp)
//----------------------------------------------------------------------
BEGIN_EVENT_TABLE(MyFrame, wxFrame)
- EVT_MENU(ID_EXIT, OnExit)
- EVT_MENU(ID_PYFRAME, OnPyFrame)
+ EVT_MENU(ID_EXIT, MyFrame::OnExit)
+ EVT_MENU(ID_PYFRAME, MyFrame::OnPyFrame)
END_EVENT_TABLE()
wxMenuBar* mbar = new wxMenuBar;
wxMenu* menu = new wxMenu;
- menu->Append(ID_PYFRAME, "Make wx&Python frame");
+ menu->Append(ID_PYFRAME, _T("Make wx&Python frame"));
menu->AppendSeparator();
- menu->Append(ID_EXIT, "&Close Frame\tAlt-X");
- mbar->Append(menu, "&File");
+ menu->Append(ID_EXIT, _T("&Close Frame\tAlt-X"));
+ mbar->Append(menu, _T("&File"));
SetMenuBar(mbar);
CreateStatusBar();
// Make some child windows from C++
wxSplitterWindow* sp = new wxSplitterWindow(this, -1);
- wxPanel* p1 = new wxPanel(sp, -1);
- p1->SetFont(wxFont(12, wxSWISS, wxNORMAL, wxBOLD));
+ wxPanel* p1 = new wxPanel(sp, -1, wxDefaultPosition, wxDefaultSize, wxSUNKEN_BORDER);
+
new wxStaticText(p1, -1,
- wxT("The frame, menu, splitter, this panel and this text were created in C++..."),
+ _T("The frame, menu, splitter, this panel and this text were created in C++..."),
wxPoint(10,10));
// And get a panel from Python
//----------------------------------------------------------------------
-// This is were the fun begins...
+// This is where the fun begins...
char* python_code1 = "\
-from wxPython.wx import wxFrame\n\
-f = wxFrame(None, -1, 'Hello from wxPython!', size=(250, 150))\n\
+import wx\n\
+f = wx.Frame(None, -1, 'Hello from wxPython!', size=(250, 150))\n\
f.Show()\n\
";
// C++ code in any way, you can execute it with PyRun_SimpleString.
- // First, whenever you do anyting with Python objects or code, you
+ // First, whenever you do anything with Python objects or code, you
// *MUST* aquire the Global Interpreter Lock and block other
// Python threads from running.
- wxPyBeginBlockThreads();
+ wxPyBlock_t blocked = wxPyBeginBlockThreads();
// Execute the code in the __main__ module
PyRun_SimpleString(python_code1);
// Finally, release the GIL and let other Python threads run.
- wxPyEndBlockThreads();
+ wxPyEndBlockThreads(blocked);
}
// only on demand when something is printed, like a traceback.
char* python_redirect = "\
import sys\n\
-from wxPython.wx import wxPyOnDemandOutputWindow\n\
-output = wxPyOnDemandOutputWindow()\n\
+import wx\n\
+output = wx.PyOnDemandOutputWindow()\n\
sys.stdin = sys.stderr = output\n\
";
- wxPyBeginBlockThreads();
+ wxPyBlock_t blocked = wxPyBeginBlockThreads();
PyRun_SimpleString(python_redirect);
- wxPyEndBlockThreads();
+ wxPyEndBlockThreads(blocked);
}
char* python_code2 = "\
+import sys\n\
+sys.path.append('.')\n\
import embedded_sample\n\
\n\
def makeWindow(parent):\n\
// More complex embedded situations will require passing C++ objects to
// Python and/or returning objects from Python to be used in C++. This
// sample shows one way to do it. NOTE: The above code could just have
- // easily come from a file, or the whole thing coupld be in the Python
+ // easily come from a file, or the whole thing could be in the Python
// module that is imported and manipulated directly in this C++ code. See
// the Python API for more details.
PyObject* result;
// As always, first grab the GIL
- wxPyBeginBlockThreads();
+ wxPyBlock_t blocked = wxPyBeginBlockThreads();
// Now make a dictionary to serve as the global namespace when the code is
// executed. Put a reference to the builtins module in it. (Yes, the
// Was there an exception?
if (! result) {
PyErr_Print();
- wxPyEndBlockThreads();
+ wxPyEndBlockThreads(blocked);
return NULL;
}
Py_DECREF(result);
// Now build an argument tuple and call the Python function. Notice the
// use of another wxPython API to take a wxWindows object and build a
// wxPython object that wraps it.
- PyObject* arg = wxPyMake_wxObject(parent);
+ PyObject* arg = wxPyMake_wxObject(parent, false);
wxASSERT(arg != NULL);
-
PyObject* tuple = PyTuple_New(1);
PyTuple_SET_ITEM(tuple, 0, arg);
result = PyEval_CallObject(func, tuple);
else {
// Otherwise, get the returned window out of Python-land and
// into C++-ville...
- bool error = SWIG_GetPtrObj(result, (void**)&window, "_wxWindow_p");
- wxASSERT_MSG(!error, wxT("Returned object was not a wxWindow!"));
+ bool success = wxPyConvertSwigPtr(result, (void**)&window, _T("wxWindow"));
+ wxASSERT_MSG(success, _T("Returned object was not a wxWindow!"));
Py_DECREF(result);
}
Py_DECREF(tuple);
// Finally, after all Python stuff is done, release the GIL
- wxPyEndBlockThreads();
+ wxPyEndBlockThreads(blocked);
return window;
}
//----------------------------------------------------------------------
-
-
-
-
-
-
-
-
-
-// void MyFrame::OnButton(wxCommandEvent& WXUNUSED(event))
-// {
-// //Py_Initialize();
-// //PySys_SetArgv(argc, argv)
-// // // initialize thread support
-// // PyEval_InitThreads();
-// wxPyBeginBlockThreads();
-// PyRun_SimpleString(
-// "from wxPython.wx import *\n"
-// "f = wxFrame(None, -1, 'Hello from wxPython', size=(250,150))\n"
-// "f.Show()"
-// );
-// wxPyEndBlockThreads();
-// }
-
-
-
-
-
-
-// ////////////////////////////////////////////////////////////////////////
-// ////////////////////////////////////////////////////////////////////////
-// ////////////////////////////////////////////////////////////////////////
-// /// this, RedirectIOToConsole(), help came from
-// /// http://www.halcyon.com/ast/dload/guicon.htm
-
-// // #include <windows.h>
-// // #include <stdio.h>
-// #include <fcntl.h>
-// #include <io.h>
-// // #include <iostream>
-// // #include <fstream>
-// // //#ifndef _USE_OLD_IOSTREAMS
-// // using namespace std;
-// // //#endif
-
-// // maximum mumber of lines the output console should have
-// static const WORD MAX_CONSOLE_LINES = 500;
-
-// void RedirectIOToConsole()
-// {
-// int hConHandle;
-// long lStdHandle;
-// CONSOLE_SCREEN_BUFFER_INFO coninfo;
-// FILE *fp;
-
-// // allocate a console for this app
-// AllocConsole();
-
-// // set the screen buffer to be big enough to let us scroll text
-// GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &coninfo);
-
-// coninfo.dwSize.Y = MAX_CONSOLE_LINES;
-// SetConsoleScreenBufferSize(GetStdHandle(STD_OUTPUT_HANDLE), coninfo.dwSize);
-
-// // redirect unbuffered STDOUT to the console
-// lStdHandle = (long)GetStdHandle(STD_OUTPUT_HANDLE);
-// hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
-
-// fp = _fdopen( hConHandle, "w" );
-// *stdout = *fp;
-
-// setvbuf( stdout, NULL, _IONBF, 0 );
-
-// // redirect unbuffered STDIN to the console
-// lStdHandle = (long)GetStdHandle(STD_INPUT_HANDLE);
-// hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
-
-// fp = _fdopen( hConHandle, "r" );
-// *stdin = *fp;
-
-// setvbuf( stdin, NULL, _IONBF, 0 );
-
-// // redirect unbuffered STDERR to the console
-// lStdHandle = (long)GetStdHandle(STD_ERROR_HANDLE);
-// hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
-
-// fp = _fdopen( hConHandle, "w" );
-// *stderr = *fp;
-// setvbuf( stderr, NULL, _IONBF, 0 );
-
-// // make cout, wcout, cin, wcin, wcerr, cerr, wclog and clog
-// // point to console as well
-// //std::ios::sync_with_stdio();
-// }
-
-// ////////////////////////////////////////////////////////////////////////
-// ////////////////////////////////////////////////////////////////////////
-// ////////////////////////////////////////////////////////////////////////
projects / wxWidgets.git / blobdiff