samples/ipc/server.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        server.h
   3 // Purpose:     DDE sample: server
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     25/01/99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #define ID_START         10000
  13 #define ID_DISCONNECT    10001
  14 #define ID_ADVISE         10002
  15 #define ID_LOG          10003
  16 #define ID_SERVERNAME    10004
  17
  18 // Define a new application
  19 class MyServer;
  20 class MyConnection;
  21 class MyFrame;
  22
  23 class MyApp : public wxApp
  24 {
  25 public:
  26     virtual bool OnInit();
  27     virtual int OnExit();
  28     MyFrame *GetFrame() { return m_frame; };
  29
  30 protected:
  31     MyFrame        *m_frame;
  32 };
  33
  34 DECLARE_APP(MyApp)
  35
  36 // Define a new frame
  37 class MyFrame : public wxFrame
  38 {
  39 public:
  40     MyFrame(wxFrame *frame, const wxString& title);
  41
  42     void OnExit(wxCommandEvent& event);
  43     void OnClose(wxCloseEvent& event);
  44
  45     void Enable();
  46     void Disconnect();
  47
  48 protected:
  49     wxButton* GetStart()  { return (wxButton*) FindWindow( ID_START ); }
  50     wxChoice* GetServername()  { return (wxChoice*) FindWindow( ID_SERVERNAME ); }
  51     wxButton* GetDisconnect()  { return (wxButton*) FindWindow( ID_DISCONNECT ); }
  52     wxButton* GetAdvise()  { return (wxButton*) FindWindow( ID_ADVISE ); }
  53     wxTextCtrl* GetLog()  { return (wxTextCtrl*) FindWindow( ID_LOG ); }
  54
  55
  56     MyServer         *m_server;
  57
  58     void OnStart( wxCommandEvent &event );
  59     void OnServerName( wxCommandEvent &event );
  60     void OnDisconnect( wxCommandEvent &event );
  61     void OnAdvise( wxCommandEvent &event );
  62
  63     DECLARE_EVENT_TABLE()
  64 };
  65
  66 class MyConnection : public wxConnection
  67 {
  68 public:
  69     MyConnection();
  70     ~MyConnection();
  71
  72     virtual bool OnExecute(const wxString& topic, wxChar *data, int size, wxIPCFormat format);
  73     virtual const wxChar *OnRequest(const wxString& topic, const wxString& item, int *size, wxIPCFormat format);
  74     virtual bool OnPoke(const wxString& topic, const wxString& item, wxChar *data, int size, wxIPCFormat format);
  75     virtual bool OnStartAdvise(const wxString& topic, const wxString& item);
  76     virtual bool OnStopAdvise(const wxString& topic, const wxString& item);
  77     virtual bool Advise(const wxString& item, const wxChar *data, int size = -1, wxIPCFormat format = wxIPC_TEXT);
  78     virtual bool OnDisconnect();
  79 protected:
  80     void Log(const wxString& command, const wxString& topic, const wxString& item, const wxChar *data, int size, wxIPCFormat format);
  81 public:
  82     wxString        m_sAdvise;
  83 protected:
  84     wxString        m_sRequestDate;
  85     char             m_achRequestBytes[3];
  86 };
  87
  88 class MyServer: public wxServer
  89 {
  90 public:
  91     MyServer();
  92     ~MyServer();
  93     void Disconnect();
  94     bool IsConnected() { return m_connection != NULL; };
  95     MyConnection *GetConnection() { return m_connection; };
  96     void Advise();
  97     bool CanAdvise() { return m_connection != NULL && !m_connection->m_sAdvise.IsEmpty(); };
  98     wxConnectionBase *OnAcceptConnection(const wxString& topic);
  99
 100 protected:
 101     MyConnection     *m_connection;
 102 };
 103