/////////////////////////////////////////////////////////////////////////////
// Name: client.cpp
// Purpose: DDE sample: client
// Author: Julian Smart
// Modified by: Jurgen Doornik
// Created: 25/01/99
// RCS-ID: $Id: client.cpp 42458 2006-10-26 16:49:39Z JS $
// Copyright: (c) Julian Smart
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
// declarations
// ============================================================================
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#ifndef WX_PRECOMP
#include "wx/wx.h"
#endif
// Settings common to both executables: determines whether
// we're using TCP/IP or real DDE.
#include "ipcsetup.h"
#if defined(__WXGTK__) || defined(__WXX11__) || defined(__WXMOTIF__) || defined(__WXMAC__)
#include "mondrian.xpm"
#endif
#include "wx/datetime.h"
#include "client.h"
// ----------------------------------------------------------------------------
// wxWin macros
// ----------------------------------------------------------------------------
IMPLEMENT_APP(MyApp)
BEGIN_EVENT_TABLE(MyFrame, wxFrame)
EVT_MENU(wxID_EXIT, MyFrame::OnExit)
EVT_CLOSE( MyFrame::OnClose )
EVT_BUTTON( ID_START, MyFrame::OnStart )
EVT_CHOICE( ID_SERVERNAME, MyFrame::OnServername )
EVT_CHOICE( ID_HOSTNAME, MyFrame::OnHostname )
EVT_CHOICE( ID_TOPIC, MyFrame::OnTopic )
EVT_BUTTON( ID_DISCONNECT, MyFrame::OnDisconnect )
EVT_BUTTON( ID_STARTADVISE, MyFrame::OnStartAdvise )
EVT_BUTTON( ID_STOPADVISE, MyFrame::OnStopAdvise )
EVT_BUTTON( ID_POKE, MyFrame::OnPoke )
EVT_BUTTON( ID_EXECUTE, MyFrame::OnExecute )
EVT_BUTTON( ID_REQUEST, MyFrame::OnRequest )
END_EVENT_TABLE()
// ----------------------------------------------------------------------------
// globals
// ----------------------------------------------------------------------------
// ============================================================================
// implementation
// ============================================================================
// ----------------------------------------------------------------------------
// MyApp
// ----------------------------------------------------------------------------
// The `main program' equivalent, creating the windows and returning the
// main frame
bool MyApp::OnInit()
{
// Create the main frame window
m_frame = new MyFrame(NULL, _T("Client"));
m_frame->Show(true);
return true;
}
int MyApp::OnExit()
{
return 0;
}
// Define my frame constructor
MyFrame::MyFrame(wxFrame *frame, const wxString& title)
: wxFrame(frame, wxID_ANY, title, wxDefaultPosition, wxSize(400, 300))
{
// Give it an icon
SetIcon(wxICON(mondrian));
// Make a menubar
wxMenu *file_menu = new wxMenu;
file_menu->Append(wxID_EXIT, _T("&Quit\tCtrl-Q"));
wxMenuBar *menu_bar = new wxMenuBar;
menu_bar->Append(file_menu, _T("&File"));
// Associate the menu bar with the frame
SetMenuBar(menu_bar);
// set a dialog background
SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE));
// add the controls to the frame
wxString strs4[] =
{
IPC_SERVICE, _T("...")
};
wxString strs5[] =
{
IPC_HOST, _T("...")
};
wxString strs6[] =
{
IPC_TOPIC, _T("...")
};
wxBoxSizer *item0 = new wxBoxSizer( wxVERTICAL );
wxBoxSizer *item1 = new wxBoxSizer( wxHORIZONTAL );
wxGridSizer *item2 = new wxGridSizer( 4, 0, 0 );
wxButton *item3 = new wxButton( this, ID_START, wxT("Connect to server"), wxDefaultPosition, wxDefaultSize, 0 );
item2->Add( item3, 0, wxGROW|wxALIGN_CENTER_VERTICAL|wxALL, 5 );
wxChoice *item5 = new wxChoice( this, ID_HOSTNAME, wxDefaultPosition, wxSize(100,-1), 2, strs5, 0 );
item2->Add( item5, 0, wxALIGN_CENTER|wxALL, 5 );
wxChoice *item4 = new wxChoice( this, ID_SERVERNAME, wxDefaultPosition, wxSize(100,-1), 2, strs4, 0 );
item2->Add( item4, 0, wxGROW|wxALIGN_CENTER_VERTICAL|wxALL, 5 );
wxChoice *item6 = new wxChoice( this, ID_TOPIC, wxDefaultPosition, wxSize(100,-1), 2, strs6, 0 );
item2->Add( item6, 0, wxALIGN_CENTER|wxALL, 5 );
wxButton *item7 = new wxButton( this, ID_DISCONNECT, wxT("Disconnect "), wxDefaultPosition, wxDefaultSize, 0 );
item2->Add( item7, 0, wxGROW|wxALIGN_CENTER_VERTICAL|wxALL, 5 );
item2->Add( 20, 20, 0, wxALIGN_CENTER|wxALL, 5 );
item2->Add( 20, 20, 0, wxALIGN_CENTER|wxALL, 5 );
item2->Add( 20, 20, 0, wxALIGN_CENTER|wxALL, 5 );
wxButton *item8 = new wxButton( this, ID_STARTADVISE, wxT("StartAdvise"), wxDefaultPosition, wxDefaultSize, 0 );
item2->Add( item8, 0, wxGROW|wxALIGN_CENTER_VERTICAL|wxALL, 5 );
wxButton *item9 = new wxButton( this, ID_STOPADVISE, wxT("StopAdvise"), wxDefaultPosition, wxDefaultSize, 0 );
item2->Add( item9, 0, wxGROW|wxALIGN_CENTER_VERTICAL|wxALL, 5 );
item2->Add( 20, 20, 0, wxALIGN_CENTER|wxALL, 5 );
item2->Add( 20, 20, 0, wxALIGN_CENTER|wxALL, 5 );
wxButton *item10 = new wxButton( this, ID_EXECUTE, wxT("Execute"), wxDefaultPosition, wxDefaultSize, 0 );
item2->Add( item10, 0, wxGROW|wxALIGN_CENTER_VERTICAL|wxALL, 5 );
item2->Add( 20, 20, 0, wxALIGN_CENTER|wxALL, 5 );
item2->Add( 20, 20, 0, wxALIGN_CENTER|wxALL, 5 );
item2->Add( 20, 20, 0, wxALIGN_CENTER|wxALL, 5 );
wxButton *item11 = new wxButton( this, ID_POKE, wxT("Poke"), wxDefaultPosition, wxDefaultSize, 0 );
item2->Add( item11, 0, wxGROW|wxALIGN_CENTER_VERTICAL|wxALL, 5 );
item2->Add( 20, 20, 0, wxALIGN_CENTER|wxALL, 5 );
item2->Add( 20, 20, 0, wxALIGN_CENTER|wxALL, 5 );
item2->Add( 20, 20, 0, wxALIGN_CENTER|wxALL, 5 );
wxButton *item12 = new wxButton( this, ID_REQUEST, wxT("Request"), wxDefaultPosition, wxDefaultSize, 0 );
item2->Add( item12, 0, wxGROW|wxALIGN_CENTER_VERTICAL|wxALL, 5 );
item2->Add( 20, 20, 0, wxALIGN_CENTER|wxALL, 5 );
item1->Add( item2, 1, wxALIGN_CENTER|wxALL, 5 );
item0->Add( item1, 0, wxGROW|wxALIGN_CENTER_VERTICAL|wxALL, 5 );
wxStaticBox *item14 = new wxStaticBox( this, -1, wxT("Client log") );
wxStaticBoxSizer *item13 = new wxStaticBoxSizer( item14, wxVERTICAL );
wxTextCtrl *item15 = new wxTextCtrl( this, ID_LOG, wxEmptyString, wxDefaultPosition, wxSize(500,140), wxTE_MULTILINE );
item13->Add( item15, 1, wxGROW|wxALIGN_CENTER_VERTICAL|wxALL, 5 );
item0->Add( item13, 0, wxGROW|wxALIGN_CENTER_VERTICAL|wxALL, 5 );
this->SetSizer( item0 );
item0->SetSizeHints( this );
// status
m_client = NULL;
GetServername()->SetSelection(0);
GetHostname()->SetSelection(0);
GetTopic()->SetSelection(0);
wxLogTextCtrl *logWindow = new wxLogTextCtrl(GetLog());
delete wxLog::SetActiveTarget(logWindow);
wxLogMessage(_T("Click on Connect to connect to the server"));
EnableControls();
}
void MyFrame::EnableControls()
{
GetStart()->Enable(m_client == NULL);
GetServername()->Enable(m_client == NULL);
GetHostname()->Enable(m_client == NULL);
GetTopic()->Enable(m_client == NULL);
const bool isConnected = (m_client != NULL && m_client->IsConnected());
GetDisconnect()->Enable(m_client != NULL && isConnected);
GetStartAdvise()->Enable(m_client != NULL && isConnected);
GetStopAdvise()->Enable(m_client != NULL && isConnected);
GetExecute()->Enable(m_client != NULL && isConnected);
GetPoke()->Enable(m_client != NULL && isConnected);
GetRequest()->Enable(m_client != NULL && isConnected);
}
void MyFrame::OnClose(wxCloseEvent& event)
{
if (m_client)
{
delete m_client;
m_client = NULL;
}
event.Skip();
}
void MyFrame::OnExit(wxCommandEvent& WXUNUSED(event))
{
Close();
}
void MyFrame::OnStart(wxCommandEvent& WXUNUSED(event))
{
// Connect to the client
wxString servername = GetServername()->GetStringSelection();
wxString hostname = GetHostname()->GetStringSelection();
wxString topic = GetTopic()->GetStringSelection();
m_client = new MyClient;
bool retval = m_client->Connect(hostname, servername, topic);
wxLogMessage(_T("Client host=\"%s\" port=\"%s\" topic=\"%s\" %s"),
hostname.c_str(), servername.c_str(), topic.c_str(),
retval ? _T("connected") : _T("failed to connect"));
if (!retval)
{
delete m_client;
m_client = NULL;
}
EnableControls();
}
void MyFrame::OnServername( wxCommandEvent& WXUNUSED(event) )
{
if (GetServername()->GetStringSelection() == _T("..."))
{
wxString s = wxGetTextFromUser(_T("Specify the name of the server"),
_T("Server Name"), wxEmptyString, this);
if (!s.IsEmpty() && s != IPC_SERVICE)
{
GetServername()->Insert(s, 0);
GetServername()->SetSelection(0);
}
}
}
void MyFrame::OnHostname( wxCommandEvent& WXUNUSED(event) )
{
if (GetHostname()->GetStringSelection() == _T("..."))
{
wxString s = wxGetTextFromUser(_T("Specify the name of the host (ignored under DDE)"),
_T("Host Name"), wxEmptyString, this);
if (!s.IsEmpty() && s != IPC_HOST)
{
GetHostname()->Insert(s, 0);
GetHostname()->SetSelection(0);
}
}
}
void MyFrame::OnTopic( wxCommandEvent& WXUNUSED(event) )
{
if (GetTopic()->GetStringSelection() == _T("..."))
{
wxString s = wxGetTextFromUser(_T("Specify the name of the topic"),
_T("Topic Name"), wxEmptyString, this);
if (!s.IsEmpty() && s != IPC_TOPIC)
{
GetTopic()->Insert(s, 0);
GetTopic()->SetSelection(0);
}
}
}
void MyFrame::OnDisconnect(wxCommandEvent& WXUNUSED(event))
{
Disconnect();
}
void MyFrame::Disconnect()
{
delete m_client;
m_client = NULL;
EnableControls();
}
void MyFrame::OnStartAdvise(wxCommandEvent& WXUNUSED(event))
{
m_client->GetConnection()->StartAdvise(_T("something"));
}
void MyFrame::OnStopAdvise(wxCommandEvent& WXUNUSED(event))
{
m_client->GetConnection()->StopAdvise(_T("something"));
}
void MyFrame::OnExecute(wxCommandEvent& WXUNUSED(event))
{
if (m_client->IsConnected())
{
wxString s = _T("Date");
m_client->GetConnection()->Execute((wxChar *)s.c_str());
m_client->GetConnection()->Execute((wxChar *)s.c_str(), (s.Length() + 1) * sizeof(wxChar));
#if wxUSE_DDE_FOR_IPC
wxLogMessage(_T("DDE Execute can only be used to send text strings, not arbitrary data.\nThe type argument will be ignored, text truncated, converted to Unicode and null terminated."));
#endif
char bytes[3];
bytes[0] = '1'; bytes[1] = '2'; bytes[2] = '3';
m_client->GetConnection()->Execute((wxChar *)bytes, 3, wxIPC_PRIVATE);
}
}
void MyFrame::OnPoke(wxCommandEvent& WXUNUSED(event))
{
if (m_client->IsConnected())
{
wxString s = wxDateTime::Now().Format();
m_client->GetConnection()->Poke(_T("Date"), (wxChar *)s.c_str());
s = wxDateTime::Now().FormatTime() + _T(" ") + wxDateTime::Now().FormatDate();
m_client->GetConnection()->Poke(_T("Date"), (wxChar *)s.c_str(), (s.Length() + 1) * sizeof(wxChar));
char bytes[3];
bytes[0] = '1'; bytes[1] = '2'; bytes[2] = '3';
m_client->GetConnection()->Poke(_T("bytes[3]"), (wxChar *)bytes, 3, wxIPC_PRIVATE);
}
}
void MyFrame::OnRequest(wxCommandEvent& WXUNUSED(event))
{
if (m_client->IsConnected())
{
int size;
m_client->GetConnection()->Request(_T("Date"));
m_client->GetConnection()->Request(_T("Date+len"), &size);
m_client->GetConnection()->Request(_T("bytes[3]"), &size, wxIPC_PRIVATE);
}
}
// ----------------------------------------------------------------------------
// MyClient
// ----------------------------------------------------------------------------
MyClient::MyClient() : wxClient()
{
m_connection = NULL;
}
bool MyClient::Connect(const wxString& sHost, const wxString& sService, const wxString& sTopic)
{
// suppress the log messages from MakeConnection()
wxLogNull nolog;
m_connection = (MyConnection *)MakeConnection(sHost, sService, sTopic);
return m_connection != NULL;
}
wxConnectionBase *MyClient::OnMakeConnection()
{
return new MyConnection;
}
void MyClient::Disconnect()
{
if (m_connection)
{
m_connection->Disconnect();
delete m_connection;
m_connection = NULL;
wxGetApp().GetFrame()->EnableControls();
wxLogMessage(_T("Client disconnected from server"));
}
}
MyClient::~MyClient()
{
Disconnect();
}
// ----------------------------------------------------------------------------
// MyConnection
// ----------------------------------------------------------------------------
void MyConnection::Log(const wxString& command, const wxString& topic,
const wxString& item, wxChar *data, int size, wxIPCFormat format)
{
wxString s;
if (topic.IsEmpty() && item.IsEmpty())
s.Printf(_T("%s("), command.c_str());
else if (topic.IsEmpty())
s.Printf(_T("%s(item=\"%s\","), command.c_str(), item.c_str());
else if (item.IsEmpty())
s.Printf(_T("%s(topic=\"%s\","), command.c_str(), topic.c_str());
else
s.Printf(_T("%s(topic=\"%s\",item=\"%s\","), command.c_str(), topic.c_str(), item.c_str());
if (format == wxIPC_TEXT || format == wxIPC_UNICODETEXT)
wxLogMessage(_T("%s\"%s\",%d)"), s.c_str(), data, size);
else if (format == wxIPC_PRIVATE)
{
if (size == 3)
{
char *bytes = (char *)data;
wxLogMessage(_T("%s'%c%c%c',%d)"), s.c_str(), bytes[0], bytes[1], bytes[2], size);
}
else
wxLogMessage(_T("%s...,%d)"), s.c_str(), size);
}
else if (format == wxIPC_INVALID)
wxLogMessage(_T("%s[invalid data],%d)"), s.c_str(), size);
}
bool MyConnection::OnAdvise(const wxString& topic, const wxString& item, wxChar *data,
int size, wxIPCFormat format)
{
Log(_T("OnAdvise"), topic, item, data, size, format);
return true;
}
bool MyConnection::OnDisconnect()
{
wxLogMessage(_T("OnDisconnect()"));
wxGetApp().GetFrame()->Disconnect();
return true;
}
bool MyConnection::Execute(const wxChar *data, int size, wxIPCFormat format)
{
Log(_T("Execute"), wxEmptyString, wxEmptyString, (wxChar *)data, size, format);
bool retval = wxConnection::Execute(data, size, format);
if (!retval)
wxLogMessage(_T("Execute failed!"));
return retval;
}
wxChar *MyConnection::Request(const wxString& item, int *size, wxIPCFormat format)
{
wxChar *data = wxConnection::Request(item, size, format);
Log(_T("Request"), wxEmptyString, item, data, size ? *size : -1, format);
return data;
}
bool MyConnection::Poke(const wxString& item, wxChar *data, int size, wxIPCFormat format)
{
Log(_T("Poke"), wxEmptyString, item, data, size, format);
return wxConnection::Poke(item, data, size, format);
}
