samples/internat/internat.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        internat.cpp
   3 // Purpose:     Demonstrates internationalisation (i18n) support
   4 // Author:      Vadim Zeitlin/Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx/wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24 #pragma hdrstop
  25 #endif
  26
  27 #ifndef WX_PRECOMP
  28 #include "wx/wx.h"
  29 #endif
  30
  31 #include "wx/intl.h"
  32 #include "wx/file.h"
  33 #include "wx/log.h"
  34
  35 #if defined(__WXGTK__) || defined(__WXX11__) || defined(__WXMOTIF__) || defined(__WXMAC__) || defined(__WXMGL__)
  36 #include "mondrian.xpm"
  37 #endif
  38
  39 // ----------------------------------------------------------------------------
  40 // private classes
  41 // ----------------------------------------------------------------------------
  42
  43 // Define a new application type
  44 class MyApp: public wxApp
  45 {
  46 public:
  47     virtual bool OnInit();
  48
  49 protected:
  50     wxLocale m_locale; // locale we'll be using
  51 };
  52
  53 // Define a new frame type
  54 class MyFrame: public wxFrame
  55 {
  56 public:
  57     MyFrame(wxLocale& m_locale);
  58
  59 public:
  60     void OnQuit(wxCommandEvent& event);
  61     void OnAbout(wxCommandEvent& event);
  62     void OnPlay(wxCommandEvent& event);
  63     void OnOpen(wxCommandEvent& event);
  64
  65     DECLARE_EVENT_TABLE()
  66
  67     wxLocale& m_locale;
  68 };
  69
  70 // ----------------------------------------------------------------------------
  71 // constants
  72 // ----------------------------------------------------------------------------
  73
  74 // ID for the menu commands
  75 enum
  76 {
  77     INTERNAT_QUIT = 1,
  78     INTERNAT_TEXT,
  79     INTERNAT_TEST,
  80     INTERNAT_OPEN
  81 };
  82
  83 // ----------------------------------------------------------------------------
  84 // wxWindows macros
  85 // ----------------------------------------------------------------------------
  86
  87 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
  88     EVT_MENU(INTERNAT_QUIT, MyFrame::OnQuit)
  89     EVT_MENU(wxID_ABOUT, MyFrame::OnAbout)
  90     EVT_MENU(INTERNAT_TEST, MyFrame::OnPlay)
  91     EVT_MENU(INTERNAT_OPEN, MyFrame::OnOpen)
  92 END_EVENT_TABLE()
  93
  94 IMPLEMENT_APP(MyApp)
  95
  96 // ============================================================================
  97 // implementation
  98 // ============================================================================
  99
 100 // ----------------------------------------------------------------------------
 101 // MyApp
 102 // ----------------------------------------------------------------------------
 103
 104 // `Main program' equivalent, creating windows and returning main app frame
 105 bool MyApp::OnInit()
 106 {
 107     long lng = -1;
 108
 109     if ( argc == 2 )
 110     {
 111         // the parameter must be the lang index
 112         wxString(argv[1]).ToLong(&lng);
 113     }
 114
 115     static const wxLanguage langIds[] =
 116     {
 117         wxLANGUAGE_DEFAULT,
 118         wxLANGUAGE_FRENCH,
 119         wxLANGUAGE_GERMAN,
 120         wxLANGUAGE_RUSSIAN,
 121         wxLANGUAGE_JAPANESE,
 122         wxLANGUAGE_ENGLISH,
 123         wxLANGUAGE_ENGLISH_US,
 124     };
 125
 126     if ( lng == -1 )
 127     {
 128         // note that it makes no sense to translate these strings, they are
 129         // shown before we set the locale anyhow
 130         const wxString langNames[] =
 131         {
 132             _T("System default"),
 133             _T("French"),
 134             _T("German"),
 135             _T("Russian"),
 136             _T("Japanese"),
 137             _T("English"),
 138             _T("English (U.S.)")
 139         };
 140
 141         // the arrays should be in sync
 142         wxCOMPILE_TIME_ASSERT( WXSIZEOF(langNames) == WXSIZEOF(langIds),
 143                                LangArraysMismatch );
 144
 145         lng = wxGetSingleChoiceIndex
 146               (
 147                 _T("Please choose language:"),
 148                 _T("Language"),
 149                 WXSIZEOF(langNames),
 150                 langNames
 151               );
 152     }
 153
 154     if ( lng != -1 )
 155         m_locale.Init(langIds[lng]);
 156
 157
 158     // Initialize the catalogs we'll be using
 159     m_locale.AddCatalog(wxT("internat"));
 160
 161     // this catalog is installed in standard location on Linux systems and
 162     // shows that you may make use of the standard message catalogs as well
 163     //
 164     // if it's not installed on your system, it is just silently ignored
 165 #ifdef __LINUX__
 166     {
 167         wxLogNull noLog;
 168         m_locale.AddCatalog(_T("fileutils"));
 169     }
 170 #endif
 171
 172     // Create the main frame window
 173     MyFrame *frame = new MyFrame(m_locale);
 174
 175     // Give it an icon
 176     frame->SetIcon(wxICON(mondrian));
 177
 178     // Make a menubar
 179     wxMenu *file_menu = new wxMenu;
 180     file_menu->Append(wxID_ABOUT, _("&About..."));
 181     file_menu->AppendSeparator();
 182     file_menu->Append(INTERNAT_QUIT, _("E&xit"));
 183
 184     wxMenu *test_menu = new wxMenu;
 185     test_menu->Append(INTERNAT_OPEN, _("&Open bogus file"));
 186     test_menu->Append(INTERNAT_TEST, _("&Play a game"));
 187
 188     wxMenuBar *menu_bar = new wxMenuBar;
 189     menu_bar->Append(file_menu, _("&File"));
 190     menu_bar->Append(test_menu, _("&Test"));
 191     frame->SetMenuBar(menu_bar);
 192
 193     // Show the frame
 194     frame->Show(TRUE);
 195     SetTopWindow(frame);
 196
 197     return TRUE;
 198 }
 199
 200 // ----------------------------------------------------------------------------
 201 // MyFrame
 202 // ----------------------------------------------------------------------------
 203
 204 // main frame constructor
 205 MyFrame::MyFrame(wxLocale& locale)
 206        : wxFrame(NULL,
 207                  -1,
 208                  _("International wxWindows App"),
 209                  wxPoint(50, 50),
 210                  wxSize(350, 60)),
 211          m_locale(locale)
 212 {
 213     // Empty
 214 }
 215
 216 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event) )
 217 {
 218     Close(TRUE);
 219 }
 220
 221 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 222 {
 223     wxString localeInfo;
 224     wxString locale = m_locale.GetLocale();
 225     wxString sysname = m_locale.GetSysName();
 226     wxString canname = m_locale.GetCanonicalName();
 227
 228     localeInfo.Printf( _("Language: %s\nSystem locale name: %s\nCanonical locale name: %s\n"),
 229         locale.c_str(), sysname.c_str(), canname.c_str() );
 230
 231     wxMessageDialog(this, wxString(_("I18n sample\n(c) 1998, 1999 Vadim Zeitlin and Julian Smart"))
 232         + wxT("\n\n") + localeInfo,
 233         _("About Internat"), wxOK | wxICON_INFORMATION).ShowModal();
 234 }
 235
 236 void MyFrame::OnPlay(wxCommandEvent& WXUNUSED(event))
 237 {
 238     wxString str = wxGetTextFromUser(_("Enter your number:"),
 239         _("Try to guess my number!"), wxEmptyString, this);
 240
 241     if ( str.IsEmpty() ) return;
 242
 243     int num;
 244     wxSscanf(str, wxT("%d"), &num);
 245     if ( num == 0 )
 246         str = _("You've probably entered an invalid number.");
 247     else if ( num == 9 )  // this message is not translated (not in catalog)
 248         str = _T("You've found a bug in this program!");
 249     else if ( num != 17 ) // a more implicit way to write _()
 250         str = wxGetTranslation(wxT("Bad luck! try again..."));
 251     else
 252     {
 253         str.Empty();
 254         // string must be split in two -- otherwise the translation won't be found
 255         str << _("Congratulations! you've won. Here is the magic phrase:")
 256             << _("cannot create fifo `%s'");
 257     }
 258
 259     wxMessageBox(str, _("Result"), wxOK | wxICON_INFORMATION);
 260 }
 261
 262 void MyFrame::OnOpen(wxCommandEvent&)
 263 {
 264     // open a bogus file -- the error message should be also translated if you've
 265     // got wxstd.mo somewhere in the search path
 266     wxFile file(wxT("NOTEXIST.ING"));
 267 }