Fixed bug: Setting property value string did not update children of composed parent...

[wxWidgets.git] / samples / ipc / server.cpp

diff --git a/samples/ipc/server.cpp b/samples/ipc/server.cpp
index 3dfb36562fed1c6fda1073d85b86d17302210622..afe890aacf80977ba0834e5befd6217a725a4a39 100644 (file)
--- a/samples/ipc/server.cpp
+++ b/samples/ipc/server.cpp
@@ -1,198 +1,393 @@
 /////////////////////////////////////////////////////////////////////////////
 // Name:        server.cpp
 /////////////////////////////////////////////////////////////////////////////
 // Name:        server.cpp

-// Purpose:     DDE sample: server
+// Purpose:     IPC sample: server

 // Author:      Julian Smart
 // Author:      Julian Smart

-// Modified by:
+// Modified by: Jurgen Doornik

 // Created:     25/01/99
 // RCS-ID:      $Id$
 // Copyright:   (c) Julian Smart
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 // Created:     25/01/99
 // RCS-ID:      $Id$
 // Copyright:   (c) Julian Smart
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 

+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+

 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__

-#pragma hdrstop
+    #pragma hdrstop

 #endif
 
 #ifndef WX_PRECOMP
 #endif
 
 #ifndef WX_PRECOMP

-#include "wx/wx.h"
+    #include "wx/wx.h"

 #endif
 
 // Settings common to both executables: determines whether
 // we're using TCP/IP or real DDE.
 #endif
 
 // Settings common to both executables: determines whether
 // we're using TCP/IP or real DDE.

+#include "ipcsetup.h"

 
 

-#include "ddesetup.h"
-
-#if defined(__WXGTK__) || defined(__WXMOTIF__)
-#include "mondrian.xpm"
+#if !defined(__WXMSW__) && !defined(__WXPM__)
+    #include "../sample.xpm"

 #endif
 
 #include "server.h"
 #endif
 
 #include "server.h"

+#include "wx/textdlg.h"
+#include "wx/datetime.h"

 
 

-MyFrame *frame = NULL;
+// ----------------------------------------------------------------------------
+// wxWin macros
+// ----------------------------------------------------------------------------

 
 IMPLEMENT_APP(MyApp)
 
 
 IMPLEMENT_APP(MyApp)
 

-char ipc_buffer[4000];
-MyConnection *the_connection = NULL;
-MyServer *my_server ;
+BEGIN_EVENT_TABLE(MyFrame, wxFrame)
+    EVT_CLOSE( MyFrame::OnClose )
+
+    EVT_BUTTON( ID_START,          MyFrame::OnStart )
+    EVT_CHOICE( ID_SERVERNAME,     MyFrame::OnServerName )
+    EVT_BUTTON( ID_DISCONNECT,     MyFrame::OnDisconnect )
+    EVT_BUTTON( ID_ADVISE,         MyFrame::OnAdvise )
+END_EVENT_TABLE()
+
+
+// ============================================================================
+// implementation
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// MyApp
+// ----------------------------------------------------------------------------

 
 bool MyApp::OnInit()
 {
 
 bool MyApp::OnInit()
 {

-  // Create the main frame window
-  frame = new MyFrame(NULL, "Server", wxDefaultPosition, wxSize(400, 500));
+    if ( !wxApp::OnInit() )
+        return false;
+
+    // Create the main frame window
+    m_frame = new MyFrame(NULL, "Server");
+    m_frame->Show(true);
+
+    return true;
+}
+
+// ----------------------------------------------------------------------------
+// MyFrame
+// ----------------------------------------------------------------------------
+
+// Define my frame constructor
+MyFrame::MyFrame(wxFrame *frame, const wxString& title)
+       : wxFrame(frame, wxID_ANY, title, wxDefaultPosition, wxSize(400, 300))
+{
+#if wxUSE_STATUSBAR
+    CreateStatusBar();
+#endif // wxUSE_STATUSBAR
+
+    SetIcon(wxICON(sample));
+
+    m_server = NULL;
+
+    wxPanel * const panel = new wxPanel(this);

 
 

-  frame->CreateStatusBar();
+    wxBoxSizer * const sizerMain = new wxBoxSizer( wxVERTICAL );

 
 

-  // Give it an icon
-  frame->SetIcon(wxICON(mondrian));
+    wxFlexGridSizer * const sizerCmds = new wxFlexGridSizer( 2, 0, 0 );
+    sizerCmds->AddGrowableCol( 1 );

 
 

-  // Make a menubar
-  wxMenu *file_menu = new wxMenu;
+    wxButton *btn;

 
 

-  file_menu->Append(SERVER_QUIT, "&Exit");
+    btn = new wxButton(panel, ID_START, "&Start Server");
+    sizerCmds->Add(btn, 0, wxGROW|wxALIGN_CENTER_VERTICAL|wxALL, 5);

 
 

-  wxMenuBar *menu_bar = new wxMenuBar;
+    const wxString choices[] = { IPC_SERVICE, "..." };
+    wxChoice * const choice = new wxChoice
+                                  (
+                                    panel,
+                                    ID_SERVERNAME,
+                                    wxDefaultPosition, wxSize(100, -1),
+                                    WXSIZEOF(choices), choices
+                                  );
+    sizerCmds->Add(choice, 0, wxGROW|wxALIGN_CENTER_VERTICAL|wxALL, 5);

 
 

-  menu_bar->Append(file_menu, "&File");
+    btn = new wxButton(panel, ID_DISCONNECT, "&Disconnect Client");
+    sizerCmds->Add(btn, 0, wxGROW|wxALIGN_CENTER_VERTICAL|wxALL, 5);
+    sizerCmds->AddSpacer(20);

 
 

-  // Associate the menu bar with the frame
-  frame->SetMenuBar(menu_bar);
+    btn = new wxButton( panel, ID_ADVISE, "&Advise");
+    sizerCmds->Add(btn, 0, wxGROW|wxALIGN_CENTER_VERTICAL|wxALL, 5);
+    sizerCmds->AddSpacer(20);

 
 

-  // Make a panel
-  frame->panel = new wxPanel(frame, 0, 0, 400, 250);
-  wxListBox *list = new wxListBox(frame->panel, SERVER_LISTBOX,
-                                  wxPoint(5, 5), wxSize(150, 120));
-  list->Append("Apple");
-  list->Append("Pear");
-  list->Append("Orange");
-  list->Append("Banana");
-  list->Append("Fruit");
+    sizerMain->Add(sizerCmds, 0, wxGROW|wxALIGN_CENTER_VERTICAL|wxALL, 5);

 
 

-  frame->panel->Fit();
-  frame->Fit();
+    wxStaticBoxSizer * const
+        sizerLog = new wxStaticBoxSizer(wxVERTICAL, panel, "Server &log");

 
 

-  wxString server_name = "4242";
-  if (argc > 1)
-    server_name = argv[1];
+    wxTextCtrl * const textLog = new wxTextCtrl
+                                 (
+                                    panel,
+                                    wxID_ANY,
+                                    "",
+                                    wxDefaultPosition, wxSize(500, 140),
+                                    wxTE_MULTILINE
+                                 );
+    sizerLog->Add(textLog, 1, wxGROW|wxALIGN_CENTER_VERTICAL|wxALL, 5);

 
 

-  // Create a new server
-  my_server = new MyServer;
-  my_server->Create(server_name);
-  frame->Show(TRUE);
+    sizerMain->Add(sizerLog, 1, wxGROW|wxALIGN_CENTER_VERTICAL|wxALL, 5);

 
 

-  return TRUE;
+    panel->SetSizer(sizerMain);
+    sizerMain->SetSizeHints(panel);
+    SetClientSize(panel->GetSize());
+
+    GetServername()->SetSelection(0);
+    wxLogTextCtrl *logWindow = new wxLogTextCtrl(textLog);
+    delete wxLog::SetActiveTarget(logWindow);
+    wxLogMessage("Click on Start to start the server");
+    UpdateUI();

 }
 
 }
 

-BEGIN_EVENT_TABLE(MyFrame, wxFrame)
-    EVT_MENU(SERVER_QUIT, MyFrame::OnExit)
-    EVT_CLOSE(MyFrame::OnCloseWindow)
-    EVT_LISTBOX(SERVER_LISTBOX, MyFrame::OnListBoxClick)
-END_EVENT_TABLE()
+void MyFrame::UpdateUI()
+{
+    GetStart()->Enable(m_server == NULL);
+    GetServername()->Enable(m_server == NULL);
+    GetAdvise()->Enable(m_server && m_server->CanAdvise());
+    GetDisconnect()->Enable(m_server && m_server->IsConnected());
+}

 
 

-// Define my frame constructor
-MyFrame::MyFrame(wxFrame *frame, const wxString& title, const wxPoint& pos, const wxSize& size):
-  wxFrame(frame, -1, title, pos, size)
+void MyFrame::OnClose(wxCloseEvent& event)

 {
 {

-  panel = NULL;
+    if (m_server)
+    {
+        delete m_server;
+        m_server = NULL;
+    }
+    event.Skip();

 }
 
 }
 

-void MyFrame::OnExit(wxCommandEvent& event)
+void MyFrame::OnStart(wxCommandEvent& WXUNUSED(event))

 {
 {

-    if (my_server)
-        delete my_server;
-    this->Destroy();
+    // Create a new server
+    m_server = new MyServer;
+    wxString servername = GetServername()->GetStringSelection();
+    if (m_server->Create(servername))
+    {
+        wxLogMessage("Server %s started", servername);
+  #if wxUSE_DDE_FOR_IPC
+        wxLogMessage("Server uses DDE");
+  #else // !wxUSE_DDE_FOR_IPC
+        wxLogMessage("Server uses TCP");
+  #endif // wxUSE_DDE_FOR_IPC/!wxUSE_DDE_FOR_IPC
+    }
+    else
+    {
+        wxLogMessage("Server %s failed to start", servername);
+        delete m_server;
+        m_server = NULL;
+    }
+    UpdateUI();

 }
 
 }
 

-// Set the client process's listbox to this item
-void MyFrame::OnListBoxClick(wxCommandEvent& event)
+void MyFrame::OnServerName( wxCommandEvent& WXUNUSED(event) )

 {
 {

-    wxListBox* listBox = (wxListBox*) panel->FindWindow(SERVER_LISTBOX);
-    if (listBox)
+    if ( GetServername()->GetStringSelection() == "..." )

     {
     {

-        wxString value = listBox->GetStringSelection();
-        if (the_connection)
+        wxString s = wxGetTextFromUser
+                     (
+                        "Specify the name of the server",
+                        "Server Name",
+                        "",
+                        this
+                     );
+
+        if ( !s.empty() && s != IPC_SERVICE )

         {
         {

-            the_connection->Advise("Item", (char*) (const char*) value);
+            GetServername()->Insert(s, 0);
+            GetServername()->SetSelection(0);

         }
     }
 }
 
         }
     }
 }
 

-void MyFrame::OnCloseWindow(wxCloseEvent& event)
+void MyFrame::Disconnect()

 {
 {

-    if (my_server)
-        delete my_server;
-    this->Destroy();
+    m_server->Disconnect();
+    UpdateUI();

 }
 
 }
 

-BEGIN_EVENT_TABLE(IPCDialogBox, wxDialog)
-    EVT_BUTTON(SERVER_QUIT_BUTTON, IPCDialogBox::OnQuit)
-END_EVENT_TABLE()
+void MyFrame::OnDisconnect(wxCommandEvent& WXUNUSED(event))
+{
+    Disconnect();
+}

 
 

-IPCDialogBox::IPCDialogBox(wxFrame *parent, const wxString& title,
-                         const wxPoint& pos, const wxSize& size, MyConnection *the_connection):
-                     wxDialog(parent, -1, title, pos, size)
+void MyFrame::OnAdvise(wxCommandEvent& WXUNUSED(event))

 {
 {

-  connection = the_connection;
-  (void)new wxButton(this, SERVER_QUIT_BUTTON, "Quit this connection", wxPoint(5, 5));
-  Fit();
+    m_server->Advise();

 }
 
 }
 

-void IPCDialogBox::OnQuit(wxCommandEvent& event)
+// ----------------------------------------------------------------------------
+// MyServer
+// ----------------------------------------------------------------------------
+
+MyServer::MyServer() : wxServer()

 {
 {

-  connection->Disconnect();
-  delete connection;
+    m_connection = NULL;
+}
+
+MyServer::~MyServer()
+{
+    Disconnect();

 }
 
 wxConnectionBase *MyServer::OnAcceptConnection(const wxString& topic)
 {
 }
 
 wxConnectionBase *MyServer::OnAcceptConnection(const wxString& topic)
 {

-  if (strcmp(topic, "STDIO") != 0 && strcmp(topic, "IPC TEST") == 0)
-    return new MyConnection(ipc_buffer, 4000);
-  else
+    wxLogMessage("OnAcceptConnection(\"%s\")", topic);
+
+    if ( topic == IPC_TOPIC )
+    {
+        m_connection = new MyConnection();
+        wxGetApp().GetFrame()->UpdateUI();
+        wxLogMessage("Connection accepted");
+        return m_connection;
+    }
+    //else: unknown topic
+
+    wxLogMessage("Unknown topic, connection refused");

     return NULL;
 }
 
     return NULL;
 }
 

-MyConnection::MyConnection(char *buf, int size):wxConnection(buf, size)
+void MyServer::Disconnect()

 {
 {

-  dialog = new IPCDialogBox(frame, "Connection", wxPoint(100, 100), wxSize(500, 500), this);
-  dialog->Show(TRUE);
-  the_connection = this;
+    if ( m_connection )
+    {
+        delete m_connection;
+        m_connection = NULL;
+        wxGetApp().GetFrame()->UpdateUI();
+        wxLogMessage("Disconnected client");
+    }

 }
 
 }
 

-MyConnection::~MyConnection(void)
+void MyServer::Advise()

 {
 {

-  if (the_connection)
-  {
-    dialog->Destroy();
-    the_connection = NULL;
-  }
+    if ( CanAdvise() )
+    {
+        const wxDateTime now = wxDateTime::Now();
+
+        m_connection->Advise(m_connection->m_advise, now.Format());
+
+        const wxString s = now.FormatTime() + " " + now.FormatDate();
+        m_connection->Advise(m_connection->m_advise, s.mb_str(), wxNO_LEN);
+
+#if wxUSE_DDE_FOR_IPC
+        wxLogMessage("DDE Advise type argument cannot be wxIPC_PRIVATE. "
+                     "The client will receive it as wxIPC_TEXT, "
+                     " and receive the correct no of bytes, "
+                     "but not print a correct log entry.");
+#endif
+        char bytes[3] = { '1', '2', '3' };
+        m_connection->Advise(m_connection->m_advise, bytes, 3, wxIPC_PRIVATE);
+    }

 }
 
 }
 

-bool MyConnection::OnExecute(const wxString& topic, char *data, int size, wxIPCFormat format)
+// ----------------------------------------------------------------------------
+// MyConnection
+// ----------------------------------------------------------------------------
+
+bool
+MyConnection::OnExecute(const wxString& topic,
+                        const void *data,
+                        size_t size,
+                        wxIPCFormat format)

 {
 {

-  char buf[300];
-  sprintf(buf, "Execute command: %s", data);
-  frame->SetStatusText(buf);
-  return TRUE;
+    Log("OnExecute", topic, "", data, size, format);
+    return true;

 }
 
 }
 

-bool MyConnection::OnPoke(const wxString& topic, const wxString& item, char *data, int size, wxIPCFormat format)
+bool
+MyConnection::OnPoke(const wxString& topic,
+                     const wxString& item,
+                     const void *data,
+                     size_t size,
+                     wxIPCFormat format)

 {
 {

-  char buf[300];
-  sprintf(buf, "Poke command: %s", data);
-  frame->SetStatusText(buf);
-  return TRUE;
+    Log("OnPoke", topic, item, data, size, format);
+    return wxConnection::OnPoke(topic, item, data, size, format);

 }
 
 }
 

-char *MyConnection::OnRequest(const wxString& topic, const wxString& item, int *size, wxIPCFormat format)
+const void *
+MyConnection::OnRequest(const wxString& topic,
+                        const wxString& item,
+                        size_t *size,
+                        wxIPCFormat format)

 {
 {

-  return "Here, have your data, client!";
+    *size = 0;
+
+    wxString afterDate;
+    if ( item.StartsWith("Date", &afterDate) )
+    {
+        const wxDateTime now = wxDateTime::Now();
+
+        if ( afterDate.empty() )
+        {
+            m_requestData = now.Format();
+            *size = wxNO_LEN;
+        }
+        else if ( afterDate == "+len" )
+        {
+            m_requestData = now.FormatTime() + " " + now.FormatDate();
+            *size = strlen(m_requestData.mb_str()) + 1;
+        }
+    }
+    else if ( item == "bytes[3]" )
+    {
+        m_requestData = "123";
+        *size = 3;
+    }
+
+    if ( !*size )
+    {
+        wxLogMessage("Unknown request for \"%s\"", item);
+        return NULL;
+    }
+
+    const void * const data = m_requestData.mb_str();
+    Log("OnRequest", topic, item, data, *size, format);
+    return data;

 }
 
 bool MyConnection::OnStartAdvise(const wxString& topic, const wxString& item)
 {
 }
 
 bool MyConnection::OnStartAdvise(const wxString& topic, const wxString& item)
 {

-  return TRUE;
+    wxLogMessage("OnStartAdvise(\"%s\", \"%s\")", topic, item);
+    wxLogMessage("Returning true");
+    m_advise = item;
+    wxGetApp().GetFrame()->UpdateUI();
+    return true;

 }
 
 }
 

+bool MyConnection::OnStopAdvise(const wxString& topic, const wxString& item)
+{
+    wxLogMessage("OnStopAdvise(\"%s\",\"%s\")", topic, item);
+    wxLogMessage("Returning true");
+    m_advise.clear();
+    wxGetApp().GetFrame()->UpdateUI();
+    return true;
+}
+
+bool
+MyConnection::DoAdvise(const wxString& item,
+                       const void *data,
+                       size_t size,
+                       wxIPCFormat format)
+{
+    Log("Advise", "", item, data, size, format);
+    return wxConnection::DoAdvise(item, data, size, format);
+}
+
+bool MyConnection::OnDisconnect()
+{
+    wxLogMessage("OnDisconnect()");
+    wxGetApp().GetFrame()->Disconnect();
+    return true;
+}