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