Massive code changes and cleanup to allow wxPython to be split into

multiple extension modules again.  A Python CObject is used to allow
the "export" of SWIG and other common helper functions from the wxc
module to other modules, even if they are in separate shared
libraries.  Should also be usable from 3rd party code, just include
wxPython/src/export.h

Changed the default setup so the following are built as separate
extension modules:  calendar, glcanvas, grid, html, ogl, stc, and
utils.  Will probably add more later.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@8984 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/src/msw/wx.cpp

@@ -623,6 +623,8 @@ PyObject *ptrfree(PyObject *_PTRVALUE) {
         __wxCleanup();
     }
 
+
+
 extern "C" SWIGEXPORT(void) initwindowsc();
 extern "C" SWIGEXPORT(void) initwindows2c();
 extern "C" SWIGEXPORT(void) initeventsc();
@@ -640,17 +642,49 @@ extern "C" SWIGEXPORT(void) initimagec();
 extern "C" SWIGEXPORT(void) initprintfwc();
 extern "C" SWIGEXPORT(void) initsizersc();
 extern "C" SWIGEXPORT(void) initclip_dndc();
-extern "C" SWIGEXPORT(void) initgridc();
-extern "C" SWIGEXPORT(void) initutilsc();
-extern "C" SWIGEXPORT(void) inithtmlc();
-extern "C" SWIGEXPORT(void) inithtmlhelpc();
-extern "C" SWIGEXPORT(void) initcalendarc();
 extern "C" SWIGEXPORT(void) initstreamsc();
 extern "C" SWIGEXPORT(void) initfilesysc();
 
-extern "C" SWIGEXPORT(void) initglcanvasc();
-extern "C" SWIGEXPORT(void) initoglc();
-extern "C" SWIGEXPORT(void) initstc_c();
+
+
+// Export a C API in a struct.  Other modules will be able to load this from
+// the wxc module and will then have safe access to these functions, even if
+// in another shared library.
+static wxPyCoreAPI API = {
+    SWIG_MakePtr,
+    SWIG_GetPtr,
+    SWIG_GetPtrObj,
+    SWIG_RegisterMapping,
+    SWIG_addvarlink,
+    SWIG_newvarlink,
+
+    wxPySaveThread,
+    wxPyRestoreThread,
+    wxPyConstructObject,
+    wxPy_ConvertList,
+
+    byte_LIST_helper,
+    int_LIST_helper,
+    long_LIST_helper,
+    string_LIST_helper,
+    wxPoint_LIST_helper,
+    wxBitmap_LIST_helper,
+    wxString_LIST_helper,
+    wxAcceleratorEntry_LIST_helper,
+
+    wxSize_helper,
+    wxPoint_helper,
+    wxRealPoint_helper,
+    wxRect_helper,
+    wxColour_helper,
+
+    wxPyCBH_setSelf,
+    wxPyCBH_findCallback,
+    wxPyCBH_callCallback,
+    wxPyCBH_callCallbackObj,
+    wxPyCBH_delete,
+};
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -2981,6 +3015,12 @@ SWIGEXPORT(void) initwxc() {
 	 SWIG_addvarlink(SWIG_globals,"wxPyDefaultPosition",_wrap_wxPyDefaultPosition_get, _wrap_wxPyDefaultPosition_set);
 	 SWIG_addvarlink(SWIG_globals,"wxPyDefaultSize",_wrap_wxPyDefaultSize_get, _wrap_wxPyDefaultSize_set);
 
+    // Make our API structure a CObject so other modules can import it
+    // from this module.
+    PyObject* v = PyCObject_FromVoidPtr(&API, NULL);
+    PyDict_SetItemString(d,"wxPyCoreAPI", v);
+    Py_XDECREF(v);
+
 
     __wxPreStart();     // initialize the GUI toolkit, if needed.
 
@@ -3008,15 +3048,6 @@ SWIGEXPORT(void) initwxc() {
     initstreamsc();
     initfilesysc();
 
-    initgridc();
-    initutilsc();
-    inithtmlc();
-    inithtmlhelpc();
-    initcalendarc();
-
-    initglcanvasc();
-    initoglc();
-    initstc_c();
 {
    int i;
    for (i = 0; _swig_mapping[i].n1; i++)