wxWidgets/samples/ipc/client.h

/////////////////////////////////////////////////////////////////////////////
// Name:        client.h
// Purpose:     DDE sample: client
// Author:      Julian Smart
// Modified by:
// Created:     25/01/99
// RCS-ID:      $Id$
// Copyright:   (c) Julian Smart
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#define ID_START         10000
#define ID_DISCONNECT    10001
#define ID_STARTADVISE    10002
#define ID_LOG          10003
#define ID_SERVERNAME    10004
#define ID_STOPADVISE    10005
#define ID_POKE            10006
#define ID_REQUEST        10007
#define ID_EXECUTE        10008
#define ID_TOPIC        10009
#define ID_HOSTNAME        10010

// Define a new application
class MyClient;
class MyConnection;
class MyFrame;

class MyApp: public wxApp
{
public:
    virtual bool OnInit();
    virtual int OnExit();
    MyFrame *GetFrame() { return m_frame; };

protected:
    MyFrame        *m_frame;
};

// Define a new frame
class MyFrame: public wxFrame
{
public:
    MyFrame(wxFrame *frame, const wxString& title);

    void OnExit(wxCommandEvent& event);
    void OnClose(wxCloseEvent& event);
    void EnableControls();
    void Disconnect();

protected:
    wxButton* GetStart()  { return (wxButton*) FindWindow( ID_START ); }
    wxChoice* GetServername()  { return (wxChoice*) FindWindow( ID_SERVERNAME ); }
    wxChoice* GetHostname()  { return (wxChoice*) FindWindow( ID_HOSTNAME ); }
    wxChoice* GetTopic()  { return (wxChoice*) FindWindow( ID_TOPIC ); }
    wxButton* GetDisconnect()  { return (wxButton*) FindWindow( ID_DISCONNECT ); }
    wxButton* GetStartAdvise()  { return (wxButton*) FindWindow( ID_STARTADVISE ); }
    wxButton* GetStopAdvise()  { return (wxButton*) FindWindow( ID_STOPADVISE ); }
    wxButton* GetRequest()  { return (wxButton*) FindWindow( ID_REQUEST ); }
    wxButton* GetPoke()  { return (wxButton*) FindWindow( ID_POKE ); }
    wxButton* GetExecute()  { return (wxButton*) FindWindow( ID_EXECUTE ); }
    wxTextCtrl* GetLog()  { return (wxTextCtrl*) FindWindow( ID_LOG ); }

    MyClient         *m_client;

    void OnStart( wxCommandEvent &event );
    void OnServername( wxCommandEvent &event );
    void OnHostname( wxCommandEvent &event );
    void OnTopic( wxCommandEvent &event );
    void OnDisconnect( wxCommandEvent &event );
    void OnStartAdvise( wxCommandEvent &event );
    void OnStopAdvise( wxCommandEvent &event );
    void OnExecute(wxCommandEvent& event);
    void OnPoke(wxCommandEvent& event);
    void OnRequest(wxCommandEvent& event);

protected:
    DECLARE_EVENT_TABLE()
};

class MyConnection: public wxConnection
{
public:
    virtual bool Execute(const wxChar *data, int size = -1, wxIPCFormat format = wxIPC_TEXT);
    virtual wxChar *Request(const wxString& item, int *size = NULL, wxIPCFormat format = wxIPC_TEXT);
    virtual bool Poke(const wxString& item, wxChar *data, int size = -1, wxIPCFormat format = wxIPC_TEXT);
    virtual bool OnAdvise(const wxString& topic, const wxString& item, wxChar *data, int size, wxIPCFormat format);
    virtual bool OnDisconnect();
protected:
    void Log(const wxString& command, const wxString& topic,
        const wxString& item, wxChar *data, int size, wxIPCFormat format);
};

class MyClient: public wxClient
{
public:
    MyClient();
    ~MyClient();
    bool Connect(const wxString& sHost, const wxString& sService, const wxString& sTopic);
    void Disconnect();
    wxConnectionBase *OnMakeConnection();
    bool IsConnected() { return m_connection != NULL; };
    MyConnection *GetConnection() { return m_connection; };

protected:
    MyConnection     *m_connection;
};