Added wxDllWidget from Vaclav Slavik which allows wx widgets derived

from wxWindow to be loaded from a C++ .dll (or .so) and be used in a
wxPython program, without the widget having to be SWIGged first.

Various updates for distribs


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@12890 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/contrib/dllwidget/dllwidget_.i

@@ -0,0 +1,111 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        dllwidget_.i
+// Purpose:     Load wx widgets from external DLLs
+//
+// Author:      Robin Dunn
+//
+// Created:     04-Dec-2001
+// RCS-ID:      $Id$
+// Copyright:   (c) 2001 by Total Control Software
+// Licence:     wxWindows license
+/////////////////////////////////////////////////////////////////////////////
+
+%module dllwidget_
+
+
+%{
+#include "export.h"
+#include "dllwidget.h"
+%}
+
+//---------------------------------------------------------------------------
+
+%include typemaps.i
+%include my_typemaps.i
+
+%extern wx.i
+%extern windows.i
+%extern _defs.i
+
+//---------------------------------------------------------------------------
+
+/*
+
+wxDllWidget can be used to embed a wxWindow implemented in C++ in your
+wxPython application without the need to write a SWIG interface. Widget's code
+is stored in shared library or DLL that exports DLL_WidgetFactory symbol
+and loaded at runtime. All you have to do is to pass the name of DLL and the class
+to create to wxDllWidget's ctor.
+
+Runtime-loadable widget must have HandleCommand method (see the example) that is
+used to communicate with Python app. You call wxDllWidget.SendCommand(cmd,param) from
+Python and it in turn calls HandleCommand of the loaded widget.
+
+You must use DECLARE_DLL_WIDGET, BEGIN_WIDGET_LIBRARY, END_WIDGET_LIBRARY and
+REGISTER_WIDGET macros in your C++ module in order to provide all the meat
+wxDllWidget needs.
+
+Example of use:
+
+    #define CMD_MAKEWHITE     1
+
+    class MyWindow : public wxWindow
+    {
+    public:
+        MyWindow(wxWindow *parent, long style)
+            : wxWindow(parent, -1) {}
+
+        int HandleCommand(int cmd, const wxString& param)
+        {
+            if (cmd == CMD_MAKEWHITE)
+                SetBackgroundColour(*wxWHITE);
+            return 0;
+        }
+    };
+    DECLARE_DLL_WIDGET(MyWindow)
+
+    class MyCanvasWindow : public wxScrolledWindow
+    {
+        ...
+    };
+    DECLARE_DLL_WIDGET(MyCanvasWindow)
+
+    BEGIN_WIDGET_LIBRARY()
+        REGISTER_WIDGET(MyWindow)
+        REGISTER_WIDGET(MyCanvasWindow)
+    END_WIDGET_LIBRARY()
+
+*/
+
+class wxDllWidget : public wxPanel
+{
+public:
+    wxDllWidget(wxWindow *parent,
+                wxWindowID id = -1,
+                const wxString& dllName = wxEmptyString,
+                const wxString& className = wxEmptyString,
+                const wxPoint& pos = wxDefaultPosition,
+                const wxSize& size = wxDefaultSize,
+                long style = 0);
+
+    %pragma(python) addtomethod = "__init__:self._setOORInfo(self)"
+
+    bool Ok();
+
+    int SendCommand(int cmd, const wxString& param = wxEmptyString);
+    wxWindow* GetEmbeddedWindow();
+
+    static wxString GetDllExt();
+};
+
+//---------------------------------------------------------------------------
+
+%init %{
+
+    wxClassInfo::CleanUpClasses();
+    wxClassInfo::InitializeClasses();
+
+%}
+
+
+//---------------------------------------------------------------------------