// Name: client.cpp
// Purpose: DDE sample: client
// Author: Julian Smart
-// Modified by:
+// Modified by: Jurgen Doornik
// Created: 25/01/99
// RCS-ID: $Id$
// Copyright: (c) Julian Smart
// Settings common to both executables: determines whether
// we're using TCP/IP or real DDE.
-#include "ddesetup.h"
+#include "ipcsetup.h"
#if defined(__WXGTK__) || defined(__WXX11__) || defined(__WXMOTIF__) || defined(__WXMAC__)
#include "mondrian.xpm"
#endif
+#include "wx/datetime.h"
#include "client.h"
// ----------------------------------------------------------------------------
IMPLEMENT_APP(MyApp)
BEGIN_EVENT_TABLE(MyFrame, wxFrame)
- EVT_MENU(CLIENT_QUIT, MyFrame::OnExit)
- EVT_MENU(CLIENT_EXECUTE, MyFrame::OnExecute)
- EVT_MENU(CLIENT_POKE, MyFrame::OnPoke)
- EVT_MENU(CLIENT_REQUEST, MyFrame::OnRequest)
+ 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
// ----------------------------------------------------------------------------
-wxListBox *the_list = NULL;
-
-MyConnection *the_connection = NULL;
-MyClient *my_client;
-
// ============================================================================
// implementation
// ============================================================================
// main frame
bool MyApp::OnInit()
{
- // service name (DDE classes) or port number (TCP/IP based classes)
- wxString service = IPC_SERVICE;
-
- // ignored under DDE, host name in TCP/IP based classes
- wxString hostName = "localhost";
-
- if (argc > 1)
- service = argv[1];
- if (argc > 2)
- hostName = argv[2];
-
- // Create a new client
- my_client = new MyClient;
-
- // suppress the log messages from MakeConnection()
- {
- wxLogNull nolog;
- the_connection = (MyConnection *)
- my_client->MakeConnection(hostName, service, IPC_TOPIC);
-
- while ( !the_connection )
- {
- if ( wxMessageBox("Failed to make connection to server.\nRetry?",
- "Client Demo Error",
- wxICON_ERROR | wxYES_NO | wxCANCEL ) != wxYES )
- {
- // no server
- return FALSE;
- }
-
- the_connection = (MyConnection *)my_client->MakeConnection(hostName, service, "IPC TEST");
- }
- }
-
- if (!the_connection->StartAdvise(IPC_ADVISE_NAME))
- wxMessageBox("StartAdvise failed", "Client Demo Error");
+ if ( !wxApp::OnInit() )
+ return false;
// Create the main frame window
- (new MyFrame(NULL, "Client"))->Show(TRUE);
+ m_frame = new MyFrame(NULL, wxT("Client"));
+ m_frame->Show(true);
- return TRUE;
+ return true;
}
int MyApp::OnExit()
{
- // will delete the connection too
- // Update: Seems it didn't delete the_connection, because there's a leak.
- // Deletion is now explicitly done a few lines up.
- // another Update: in fact it's because OnDisconnect should delete it, but
- // it wasn't
- delete my_client;
-
-
return 0;
}
// Define my frame constructor
MyFrame::MyFrame(wxFrame *frame, const wxString& title)
- : wxFrame(frame, -1, title, wxDefaultPosition, wxSize(300, 200))
+ : 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(CLIENT_EXECUTE, "&Execute\tCtrl-E");
- file_menu->Append(CLIENT_REQUEST, "&Request\tCtrl-R");
- file_menu->Append(CLIENT_POKE, "&Poke\tCtrl-P");
- file_menu->Append(CLIENT_QUIT, "&Quit\tCtrl-Q");
+ file_menu->Append(wxID_EXIT, wxT("&Quit\tCtrl-Q"));
wxMenuBar *menu_bar = new wxMenuBar;
- menu_bar->Append(file_menu, "&File");
+ menu_bar->Append(file_menu, wxT("&File"));
// Associate the menu bar with the frame
SetMenuBar(menu_bar);
- // Make a listbox which shows the choices made in the server
- the_list = new wxListBox(this, CLIENT_LISTBOX, wxPoint(5, 5));
- the_list->Append("Apple");
- the_list->Append("Pear");
- the_list->Append("Orange");
- the_list->Append("Banana");
- the_list->Append("Fruit");
+ // set a dialog background
+ SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE));
+
+ // add the controls to the frame
+ wxString strs4[] =
+ {
+ IPC_SERVICE, wxT("...")
+ };
+ wxString strs5[] =
+ {
+ IPC_HOST, wxT("...")
+ };
+ wxString strs6[] =
+ {
+ IPC_TOPIC, wxT("...")
+ };
+
+ 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(wxT("Click on Connect to connect to the server"));
+ EnableControls();
}
-void MyFrame::OnExecute(wxCommandEvent& event)
+void MyFrame::EnableControls()
{
- if (the_connection)
- if (!the_connection->Execute("Hello from the client!"))
- wxMessageBox("Execute failed", "Client Demo Error");
+ 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::OnPoke(wxCommandEvent& event)
+void MyFrame::OnClose(wxCloseEvent& event)
{
- if (the_connection)
- if (!the_connection->Poke("An item", "Some data to poke at the server!"))
- wxMessageBox("Poke failed", "Client Demo Error");
+ if (m_client)
+ {
+ delete m_client;
+ m_client = NULL;
+ }
+ event.Skip();
+}
+
+void MyFrame::OnExit(wxCommandEvent& WXUNUSED(event))
+{
+ Close();
}
-void MyFrame::OnRequest(wxCommandEvent& event)
+void MyFrame::OnStart(wxCommandEvent& WXUNUSED(event))
{
- if (the_connection)
+ // 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(wxT("Client host=\"%s\" port=\"%s\" topic=\"%s\" %s"),
+ hostname.c_str(), servername.c_str(), topic.c_str(),
+ retval ? wxT("connected") : wxT("failed to connect"));
+
+ if (!retval)
{
- char *data = the_connection->Request("An item");
- if (data)
- wxMessageBox(data, "Client: Request", wxOK);
- else
- wxMessageBox("Request failed", "Client Demo Error");
+ delete m_client;
+ m_client = NULL;
}
+ EnableControls();
}
-void MyFrame::OnExit(wxCommandEvent& event)
+void MyFrame::OnServername( wxCommandEvent& WXUNUSED(event) )
{
- Close();
+ if (GetServername()->GetStringSelection() == wxT("..."))
+ {
+ wxString s = wxGetTextFromUser(wxT("Specify the name of the server"),
+ wxT("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() == wxT("..."))
+ {
+ wxString s = wxGetTextFromUser(wxT("Specify the name of the host (ignored under DDE)"),
+ wxT("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() == wxT("..."))
+ {
+ wxString s = wxGetTextFromUser(wxT("Specify the name of the topic"),
+ wxT("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(wxT("something"));
+}
+
+void MyFrame::OnStopAdvise(wxCommandEvent& WXUNUSED(event))
+{
+ m_client->GetConnection()->StopAdvise(wxT("something"));
+}
+
+void MyFrame::OnExecute(wxCommandEvent& WXUNUSED(event))
+{
+ if (m_client->IsConnected())
+ {
+ wxString s = wxT("Date");
+
+ m_client->GetConnection()->Execute(s);
+ m_client->GetConnection()->Execute((const char *)s.c_str(), s.length() + 1);
+ char bytes[3];
+ bytes[0] = '1';
+ bytes[1] = '2';
+ bytes[2] = '3';
+ m_client->GetConnection()->Execute(bytes, WXSIZEOF(bytes));
+ }
+}
+
+void MyFrame::OnPoke(wxCommandEvent& WXUNUSED(event))
+{
+ if (m_client->IsConnected())
+ {
+ wxString s = wxDateTime::Now().Format();
+ m_client->GetConnection()->Poke(wxT("Date"), s);
+ s = wxDateTime::Now().FormatTime() + wxT(" ") + wxDateTime::Now().FormatDate();
+ m_client->GetConnection()->Poke(wxT("Date"), (const char *)s.c_str(), s.length() + 1);
+ char bytes[3];
+ bytes[0] = '1'; bytes[1] = '2'; bytes[2] = '3';
+ m_client->GetConnection()->Poke(wxT("bytes[3]"), bytes, 3, wxIPC_PRIVATE);
+ }
+}
+
+void MyFrame::OnRequest(wxCommandEvent& WXUNUSED(event))
+{
+ if (m_client->IsConnected())
+ {
+ size_t size;
+ m_client->GetConnection()->Request(wxT("Date"));
+ m_client->GetConnection()->Request(wxT("Date+len"), &size);
+ m_client->GetConnection()->Request(wxT("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;
}
-bool MyConnection::OnAdvise(const wxString& topic, const wxString& item, char *data, int size, wxIPCFormat format)
+void MyClient::Disconnect()
{
- if (the_list)
+ if (m_connection)
{
- int n = the_list->FindString(data);
- if (n > -1)
- the_list->SetSelection(n);
+ m_connection->Disconnect();
+ delete m_connection;
+ m_connection = NULL;
+ wxGetApp().GetFrame()->EnableControls();
+ wxLogMessage(wxT("Client disconnected from server"));
}
- return TRUE;
+}
+
+MyClient::~MyClient()
+{
+ Disconnect();
+}
+
+// ----------------------------------------------------------------------------
+// MyConnection
+// ----------------------------------------------------------------------------
+
+bool MyConnection::OnAdvise(const wxString& topic, const wxString& item, const void *data,
+ size_t size, wxIPCFormat format)
+{
+ Log(wxT("OnAdvise"), topic, item, data, size, format);
+ return true;
}
bool MyConnection::OnDisconnect()
{
- // when connection is terminated, quit whole program
- wxWindow *win = wxTheApp->GetTopWindow();
- if ( win )
- win->Destroy();
+ wxLogMessage(wxT("OnDisconnect()"));
+ wxGetApp().GetFrame()->Disconnect();
+ return true;
+}
+
+bool MyConnection::DoExecute(const void *data, size_t size, wxIPCFormat format)
+{
+ Log(wxT("Execute"), wxEmptyString, wxEmptyString, data, size, format);
+ bool retval = wxConnection::DoExecute(data, size, format);
+ if (!retval)
+ {
+ wxLogMessage(wxT("Execute failed!"));
+ }
+ return retval;
+}
- // delete self
- the_connection = NULL;
- return wxConnection::OnDisconnect();
+const void *MyConnection::Request(const wxString& item, size_t *size, wxIPCFormat format)
+{
+ const void *data = wxConnection::Request(item, size, format);
+ Log(wxT("Request"), wxEmptyString, item, data, size ? *size : wxNO_LEN, format);
+ return data;
}
+bool MyConnection::DoPoke(const wxString& item, const void *data, size_t size, wxIPCFormat format)
+{
+ Log(wxT("Poke"), wxEmptyString, item, data, size, format);
+ return wxConnection::DoPoke(item, data, size, format);
+}
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