samples/ipc/connection.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        connection.h
   3 // Purpose:     DDE sample: MyConnection class
   4 // Author:      Vadim Zeitlin
   5 // Created:     2008-02-11 (extracted from client.cpp)
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 1999 Julian Smart
   8 //                  2008 Vadim Zeitlin
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_SAMPLE_IPC_CONNECTION_H_
  13 #define _WX_SAMPLE_IPC_CONNECTION_H_
  14
  15 // This simple connection class adds logging of all operations
  16 class MyConnectionBase : public wxConnection
  17 {
  18 protected:
  19     void Log(const wxString& command,
  20              const wxString& topic,
  21              const wxString& item,
  22              const void *data,
  23              size_t size,
  24              wxIPCFormat format)
  25     {
  26         wxString s;
  27         if (topic.IsEmpty() && item.IsEmpty())
  28             s.Printf("%s(", command.c_str());
  29         else if (topic.IsEmpty())
  30             s.Printf("%s(item=\"%s\",", command.c_str(), item.c_str());
  31         else if (item.IsEmpty())
  32             s.Printf("%s(topic=\"%s\",", command.c_str(), topic.c_str());
  33         else
  34             s.Printf("%s(topic=\"%s\",item=\"%s\",", command.c_str(), topic.c_str(), item.c_str());
  35
  36         switch (format)
  37         {
  38           case wxIPC_TEXT:
  39               s += wxString(static_cast<const char *>(data), size);
  40               break;
  41
  42 #if wxUSE_UNICODE
  43           case wxIPC_UNICODETEXT:
  44               s += wxString(static_cast<const wchar_t *>(data), size);
  45               break;
  46 #endif // wxUSE_UNICODE
  47
  48           case wxIPC_UTF8TEXT:
  49               s += wxString::FromUTF8(static_cast<const char *>(data), size);
  50               break;
  51
  52           case wxIPC_PRIVATE:
  53               if ( size == 3 )
  54               {
  55                   const char *bytes = static_cast<const char *>(data);
  56                   s << '"' << bytes[0] << bytes[1] << bytes[2] << '"';
  57               }
  58               else
  59               {
  60                   s << "\"???\"";
  61               }
  62               break;
  63
  64           case wxIPC_INVALID:
  65               s += "[invalid data]";
  66               break;
  67
  68           default:
  69               s += "[unknown data]";
  70               break;
  71         }
  72
  73         wxLogMessage("%s,%d)", s, size);
  74     }
  75 };
  76
  77 #endif // _WX_SAMPLE_IPC_CONNECTION_H_