Watcom does not accept #warning but supports more than MSW port.

[wxWidgets.git] / samples / internat / internat.cpp

diff --git a/samples/internat/internat.cpp b/samples/internat/internat.cpp
index 04b48f8836eaaab061ce061192f48cda8b8faf4f..dd1fe4bbd815df7d1b37ab51a56ba9899b4fca1f 100644 (file)
--- a/samples/internat/internat.cpp
+++ b/samples/internat/internat.cpp
@@ -5,14 +5,17 @@
 // Modified by:
 // Created:     04/01/98
 // RCS-ID:      $Id$
 // Modified by:
 // Created:     04/01/98
 // RCS-ID:      $Id$

-// Copyright:   (c) Julian Smart and Markus Holzem
+// Copyright:   (c) Julian Smart

 // Licence:     wxWindows license
 /////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows license
 /////////////////////////////////////////////////////////////////////////////
 

-#ifdef __GNUG__
-#pragma implementation
-#pragma interface
-#endif
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------

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


@@ -33,182 +36,361 @@
 #include "mondrian.xpm"
 #endif
 
 #include "mondrian.xpm"
 #endif
 

+// ----------------------------------------------------------------------------
+// private classes
+// ----------------------------------------------------------------------------
+

 // Define a new application type
 class MyApp: public wxApp
 {
 public:
 // Define a new application type
 class MyApp: public wxApp
 {
 public:

-  virtual bool OnInit();
+    virtual bool OnInit();

 
 protected:
 
 protected:

-  wxLocale m_locale; // locale we'll be using
+    wxLocale m_locale; // locale we'll be using

 };
 
 // Define a new frame type
 class MyFrame: public wxFrame
 };
 
 // Define a new frame type
 class MyFrame: public wxFrame

-{ 
+{

 public:
 public:

-  MyFrame(wxFrame *frame, const wxChar *title, int x, int y, int w, int h,
-          wxLocale& m_locale);
+    MyFrame(wxLocale& m_locale);

 
 public:
 
 public:

-  void OnQuit(wxCommandEvent& event);
-  void OnAbout(wxCommandEvent& event);
-  void OnPlay(wxCommandEvent& event);
-  void OnOpen(wxCommandEvent& event);
-
-  DECLARE_EVENT_TABLE()
-  
-  wxLocale& m_locale;
+    void OnQuit(wxCommandEvent& event);
+    void OnAbout(wxCommandEvent& event);
+    void OnPlay(wxCommandEvent& event);
+    void OnOpen(wxCommandEvent& event);
+    void OnTest1(wxCommandEvent& event);
+    void OnTest2(wxCommandEvent& event);
+    void OnTest3(wxCommandEvent& event);
+
+    DECLARE_EVENT_TABLE()
+
+    wxLocale& m_locale;

 };
 
 };
 

+// ----------------------------------------------------------------------------
+// constants
+// ----------------------------------------------------------------------------
+

 // ID for the menu commands
 enum
 {
 // ID for the menu commands
 enum
 {

-  MINIMAL_QUIT = 1,
-  MINIMAL_TEXT,
-  MINIMAL_ABOUT,
-  MINIMAL_TEST,
-  MINIMAL_OPEN
+    INTERNAT_TEXT = wxID_HIGHEST + 1,
+    INTERNAT_TEST,
+    INTERNAT_TEST_1,
+    INTERNAT_TEST_2,
+    INTERNAT_TEST_3,
+    INTERNAT_OPEN
+};
+
+// language data
+static const wxLanguage langIds[] =
+{
+    wxLANGUAGE_DEFAULT,
+    wxLANGUAGE_FRENCH,
+    wxLANGUAGE_GERMAN,
+    wxLANGUAGE_RUSSIAN,
+    wxLANGUAGE_BULGARIAN,
+    wxLANGUAGE_CZECH,
+    wxLANGUAGE_POLISH,
+    wxLANGUAGE_SWEDISH,
+#if wxUSE_UNICODE || defined(__WXMOTIF__)
+    wxLANGUAGE_JAPANESE,
+#endif
+#if wxUSE_UNICODE
+    wxLANGUAGE_GEORGIAN,
+    wxLANGUAGE_ENGLISH,
+    wxLANGUAGE_ENGLISH_US
+#endif
+};
+
+// note that it makes no sense to translate these strings, they are
+// shown before we set the locale anyhow
+const wxString langNames[] =
+{
+    _T("System default"),
+    _T("French"),
+    _T("German"),
+    _T("Russian"),
+    _T("Bulgarian"),
+    _T("Czech"),
+    _T("Polish"),
+    _T("Swedish"),
+#if wxUSE_UNICODE || defined(__WXMOTIF__)
+    _T("Japanese"),
+#endif
+#if wxUSE_UNICODE
+    _T("Georgian"),
+    _T("English"),
+    _T("English (U.S.)")
+#endif

 };
 
 };
 

+// the arrays must be in sync
+wxCOMPILE_TIME_ASSERT( WXSIZEOF(langNames) == WXSIZEOF(langIds),
+                       LangArraysMismatch );
+
+// ----------------------------------------------------------------------------
+// wxWidgets macros
+// ----------------------------------------------------------------------------
+

 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 BEGIN_EVENT_TABLE(MyFrame, wxFrame)

-  EVT_MENU(MINIMAL_QUIT, MyFrame::OnQuit)
-  EVT_MENU(MINIMAL_ABOUT, MyFrame::OnAbout)
-  EVT_MENU(MINIMAL_TEST, MyFrame::OnPlay)
-  EVT_MENU(MINIMAL_OPEN, MyFrame::OnOpen)
+    EVT_MENU(wxID_EXIT, MyFrame::OnQuit)
+    EVT_MENU(wxID_ABOUT, MyFrame::OnAbout)
+    EVT_MENU(INTERNAT_TEST, MyFrame::OnPlay)
+    EVT_MENU(INTERNAT_OPEN, MyFrame::OnOpen)
+    EVT_MENU(INTERNAT_TEST_1, MyFrame::OnTest1)
+    EVT_MENU(INTERNAT_TEST_2, MyFrame::OnTest2)
+    EVT_MENU(INTERNAT_TEST_3, MyFrame::OnTest3)

 END_EVENT_TABLE()
 
 IMPLEMENT_APP(MyApp)
 
 END_EVENT_TABLE()
 
 IMPLEMENT_APP(MyApp)
 

+// ============================================================================
+// implementation
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// MyApp
+// ----------------------------------------------------------------------------

 
 // `Main program' equivalent, creating windows and returning main app frame
 bool MyApp::OnInit()
 {
 
 // `Main program' equivalent, creating windows and returning main app frame
 bool MyApp::OnInit()
 {

-  const wxString langs[] =
-  {
-      _T("(System default)"),
-      _T("French"),
-      _T("German"),
-      _T("Russian"),
-      _T("English"),
-      _T("English (U.S.)")
-  };
-
-  SetExitOnFrameDelete(FALSE);
-  int lng = wxGetSingleChoiceIndex(_T("Please choose language:"), _T("Language"), 
-                                   WXSIZEOF(langs), langs);
-  SetExitOnFrameDelete(TRUE);
-
-  switch (lng)
-  {
-      case 0 : m_locale.Init(wxLANGUAGE_DEFAULT); break;
-      case 1 : m_locale.Init(wxLANGUAGE_FRENCH); break;
-      case 2 : m_locale.Init(wxLANGUAGE_GERMAN); break;
-      case 3 : m_locale.Init(wxLANGUAGE_RUSSIAN); break;
-      case 4 : m_locale.Init(wxLANGUAGE_ENGLISH); break;
-      case -1:
-      case 5 : m_locale.Init(wxLANGUAGE_ENGLISH_US); break;
-  }
-
-  // Initialize the catalogs we'll be using
-  /* not needed any more, done in wxLocale ctor
-  m_locale.AddCatalog("wxstd");      // 1) for library messages
-  */
-  m_locale.AddCatalog(wxT("internat"));      // 2) our private one
-  /* this catalog is installed in standard location on Linux systems,
-     it might not be installed on yours - just ignore the errrors
-     or comment out this line then */
+    long lng = -1;
+
+    if ( argc == 2 )
+    {
+        // the parameter must be the lang index
+        wxString tmp(argv[1]);
+        tmp.ToLong(&lng);
+    }
+
+    if ( lng == -1 )
+    {
+        lng = wxGetSingleChoiceIndex
+              (
+                _T("Please choose language:"),
+                _T("Language"),
+                WXSIZEOF(langNames),
+                langNames
+              );
+    }
+
+    if ( lng != -1 )
+    {
+        // don't use wxLOCALE_LOAD_DEFAULT flag so that Init() doesn't return
+        // false just because it failed to load wxstd catalog
+        if ( !m_locale.Init(langIds[lng], wxLOCALE_CONV_ENCODING) )
+        {
+            wxLogError(_T("This language is not supported by the system."));
+            return false;
+        }
+    }
+
+    // normally this wouldn't be necessary as the catalog files would be found
+    // in the default locations, but under Windows then the program is not
+    // installed the catalogs are in the parent directory (because the binary
+    // is in a subdirectory of samples/internat) where we wouldn't find them by
+    // default
+    wxLocale::AddCatalogLookupPathPrefix(wxT("."));
+    wxLocale::AddCatalogLookupPathPrefix(wxT(".."));
+
+    // Initialize the catalogs we'll be using
+    m_locale.AddCatalog(wxT("internat"));
+
+    // this catalog is installed in standard location on Linux systems and
+    // shows that you may make use of the standard message catalogs as well
+    //
+    // if it's not installed on your system, it is just silently ignored

 #ifdef __LINUX__
 #ifdef __LINUX__

-  {
-    wxLogNull noLog;
-    m_locale.AddCatalog("fileutils");  // 3) and another just for testing
-  }
+    {
+        wxLogNull noLog;
+        m_locale.AddCatalog(_T("fileutils"));
+    }

 #endif
 #endif

-  
-  // Create the main frame window
-  MyFrame *frame = new MyFrame((wxFrame *) NULL, _("International wxWindows App"),
-                               50, 50, 350, 60, m_locale);
-
-  // Give it an icon
-  frame->SetIcon(wxICON(mondrian));
-
-  // Make a menubar
-  wxMenu *file_menu = new wxMenu;
-  file_menu->Append(MINIMAL_ABOUT, _("&About..."));
-  file_menu->AppendSeparator();
-  file_menu->Append(MINIMAL_QUIT, _("E&xit"));
-
-  wxMenu *test_menu = new wxMenu;
-  test_menu->Append(MINIMAL_OPEN, _("&Open bogus file"));
-  test_menu->Append(MINIMAL_TEST, _("&Play a game"));
-
-  wxMenuBar *menu_bar = new wxMenuBar;
-  menu_bar->Append(file_menu, _("&File"));
-  menu_bar->Append(test_menu, _("&Test"));
-  frame->SetMenuBar(menu_bar);
-
-  // Show the frame
-  frame->Show(TRUE);
-  SetTopWindow(frame);
-
-  return TRUE;
+
+    // Create the main frame window
+    MyFrame *frame = new MyFrame(m_locale);
+
+    // Give it an icon
+    frame->SetIcon(wxICON(mondrian));
+
+    // Make a menubar
+    wxMenu *file_menu = new wxMenu;
+    file_menu->Append(wxID_ABOUT, _("&About..."));
+    file_menu->AppendSeparator();
+    file_menu->Append(wxID_EXIT, _("E&xit"));
+
+    wxMenu *test_menu = new wxMenu;
+    test_menu->Append(INTERNAT_OPEN, _("&Open bogus file"));
+    test_menu->Append(INTERNAT_TEST, _("&Play a game"));
+    test_menu->AppendSeparator();
+    test_menu->Append(INTERNAT_TEST_1, _("&1 _() (gettext)"));
+    test_menu->Append(INTERNAT_TEST_2, _("&2 _N() (ngettext)"));
+    test_menu->Append(INTERNAT_TEST_3, _("&3 wxTRANSLATE() (gettext_noop)"));
+
+    wxMenuBar *menu_bar = new wxMenuBar;
+    menu_bar->Append(file_menu, _("&File"));
+    menu_bar->Append(test_menu, _("&Test"));
+    frame->SetMenuBar(menu_bar);
+
+    // Show the frame
+    frame->Show(true);
+    SetTopWindow(frame);
+
+    return true;

 }
 
 }
 

-// My frame constructor
-MyFrame::MyFrame(wxFrame *frame, const wxChar *title, int x, int y,
-                 int w, int h, wxLocale& l)
-       : wxFrame(frame, -1, title, wxPoint(x, y), wxSize(w, h)),
-         m_locale(l)
+// ----------------------------------------------------------------------------
+// MyFrame
+// ----------------------------------------------------------------------------
+
+// main frame constructor
+MyFrame::MyFrame(wxLocale& locale)
+       : wxFrame(NULL,
+                 wxID_ANY,
+                 _("International wxWidgets App")),
+         m_locale(locale)

 {
 {

+    // Empty

 }
 
 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event) )
 {
 }
 
 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event) )
 {

-  Close(TRUE);
+    Close(true);

 }
 
 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 {
 }
 
 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 {

-  wxString localeInfo;
-  localeInfo.Printf(_("Language: %s\nSystem locale name: %s\nCanonical locale name: %s\n"),
-                      m_locale.GetLocale(),
-                      m_locale.GetSysName().c_str(),
-                      m_locale.GetCanonicalName().c_str());
-
-  wxMessageDialog(this, wxString(_("I18n sample\n(c) 1998, 1999 Vadim Zeitlin and Julian Smart"))
-                          + wxT("\n\n") + localeInfo,
-                  _("About Internat"), wxOK | wxICON_INFORMATION).ShowModal();
+    wxString localeInfo;
+    wxString locale = m_locale.GetLocale();
+    wxString sysname = m_locale.GetSysName();
+    wxString canname = m_locale.GetCanonicalName();
+
+    localeInfo.Printf(_("Language: %s\nSystem locale name:\n%s\nCanonical locale name: %s\n"),
+        locale.c_str(), sysname.c_str(), canname.c_str() );
+
+    wxMessageDialog dlg(
+                        this,
+                        wxString(_("I18n sample\n(c) 1998, 1999 Vadim Zeitlin and Julian Smart"))
+                                 + wxT("\n\n")
+                                 + localeInfo,
+                                 _("About Internat"),
+                        wxOK | wxICON_INFORMATION
+                       );
+    dlg.ShowModal();

 }
 
 void MyFrame::OnPlay(wxCommandEvent& WXUNUSED(event))
 {
 }
 
 void MyFrame::OnPlay(wxCommandEvent& WXUNUSED(event))
 {

-  wxString str = wxGetTextFromUser(_("Enter your number:"),
-                                   _("Try to guess my number!"),
-                                  "", this);
-  if ( str.IsEmpty() )
-      return;
-
-  int num;
-  wxSscanf(str, wxT("%d"), &num);
-  if ( num == 0 )
-    str = _("You've probably entered an invalid number.");
-  else if ( num == 9 )  // this message is not translated (not in catalog)
-    str = "You've found a bug in this program!";
-  else if ( num != 17 ) // a more implicit way to write _()
-    str = wxGetTranslation(wxT("Bad luck! try again..."));
-  else {
-    str.Empty();
-    // string must be split in two -- otherwise the translation won't be found
-    str << _("Congratulations! you've won. Here is the magic phrase:")
-        << _("cannot create fifo `%s'");
-  }
-
-  wxMessageBox(str, _("Result"), wxOK | wxICON_INFORMATION);
+    wxString str = wxGetTextFromUser
+                   (
+                    _("Enter your number:"),
+                    _("Try to guess my number!"),
+                    wxEmptyString,
+                    this
+                   );
+
+    if ( str.empty() )
+    {
+        // cancelled
+        return;
+    }
+
+    long num;
+    if ( !str.ToLong(&num) || num < 0 )
+    {
+        str = _("You've probably entered an invalid number.");
+    }
+    else if ( num == 9 )
+    {
+        // this message is not translated (not in catalog) because we used _T()
+        // and not _() around it
+        str = _T("You've found a bug in this program!");
+    }
+    else if ( num == 17 )
+    {
+        str.clear();
+
+        // string must be split in two -- otherwise the translation would't be
+        // found
+        str << _("Congratulations! you've won. Here is the magic phrase:")
+            << _("cannot create fifo `%s'");
+    }
+    else
+    {
+        // this is a more implicit way to write _() but note that if you use it
+        // you must ensure that the strings get extracted in the message
+        // catalog as by default xgettext won't do it (it only knows of _(),
+        // not wxGetTranslation())
+        str = wxGetTranslation(_T("Bad luck! try again..."));
+    }
+
+    wxMessageBox(str, _("Result"), wxOK | wxICON_INFORMATION);

 }
 
 void MyFrame::OnOpen(wxCommandEvent&)
 {
 }
 
 void MyFrame::OnOpen(wxCommandEvent&)
 {

-  // open a bogus file -- the error message should be also translated if you've
-  // got wxstd.mo somewhere in the search path
-  wxFile file(wxT("NOTEXIST.ING"));
+    // open a bogus file -- the error message should be also translated if
+    // you've got wxstd.mo somewhere in the search path
+    wxFile file(wxT("NOTEXIST.ING"));

 }
 }

+
+void MyFrame::OnTest1(wxCommandEvent& WXUNUSED(event))
+{
+    const wxChar* title = _("Testing _() (gettext)");
+    wxTextEntryDialog d(this, _("Please enter text to translate"),
+        title, wxTRANSLATE("default value"));
+    if (d.ShowModal() == wxID_OK)
+    {
+        wxString v = d.GetValue();
+        wxString s(title);
+        s << _T("\n") << v << _T(" -> ")
+            << wxGetTranslation(v.c_str()) << _T("\n");
+        wxMessageBox(s);
+    }
+}
+
+void MyFrame::OnTest2(wxCommandEvent& WXUNUSED(event))
+{
+    const wxChar* title = _("Testing _N() (ngettext)");
+    wxTextEntryDialog d(this,
+        _("Please enter range for plural forms of \"n files deleted\" phrase"),
+        title, _T("0-10"));
+    if (d.ShowModal() == wxID_OK)
+    {
+        int first, last;
+        wxSscanf(d.GetValue(), _T("%d-%d"), &first, &last);
+        wxString s(title);
+        s << _T("\n");
+        for (int n = first; n <= last; ++n)
+        {
+            s << n << _T(" ") <<
+                wxPLURAL("file deleted", "files deleted", n) <<
+                _T("\n");
+        }
+        wxMessageBox(s);
+    }
+}
+
+void MyFrame::OnTest3(wxCommandEvent& WXUNUSED(event))
+{
+    const wxChar* lines[] =
+    {
+        wxTRANSLATE("line 1"),
+        wxTRANSLATE("line 2"),
+        wxTRANSLATE("line 3"),
+    };
+    wxString s(_("Testing wxTRANSLATE() (gettext_noop)"));
+    s << _T("\n");
+    for (size_t i = 0; i < WXSIZEOF(lines); ++i)
+    {
+        s << lines[i] << _T(" -> ") << wxGetTranslation(lines[i]) << _T("\n");
+    }
+    wxMessageBox(s);
+}
+
+