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 #if defined(__GNUG__) && !defined(__APPLE__)
  13 #pragma implementation
  14 #pragma interface
  15 #endif
  16
  17 // For compilers that support precompilation, includes "wx/wx.h".
  18 #include "wx/wxprec.h"
  19
  20 #ifdef __BORLANDC__
  21 #pragma hdrstop
  22 #endif
  23
  24 #ifndef WX_PRECOMP
  25 #include "wx/wx.h"
  26 #endif
  27
  28 #include "wx/intl.h"
  29 #include "wx/file.h"
  30 #include "wx/log.h"
  31
  32 #if defined(__WXGTK__) || defined(__WXX11__) || defined(__WXMOTIF__) || defined(__WXMAC__) || defined(__WXMGL__)
  33 #include "mondrian.xpm"
  34 #endif
  35
  36 // Define a new application type
  37 class MyApp: public wxApp
  38 {
  39 public:
  40     virtual bool OnInit();
  41
  42 protected:
  43     wxLocale m_locale; // locale we'll be using
  44 };
  45
  46 // Define a new frame type
  47 class MyFrame: public wxFrame
  48 {
  49 public:
  50     MyFrame(wxFrame *frame, const wxChar *title,
  51         const wxPoint& pos, const wxSize& size, wxLocale& m_locale);
  52
  53 public:
  54     void OnQuit(wxCommandEvent& event);
  55     void OnAbout(wxCommandEvent& event);
  56     void OnPlay(wxCommandEvent& event);
  57     void OnOpen(wxCommandEvent& event);
  58
  59     DECLARE_EVENT_TABLE()
  60
  61     wxLocale& m_locale;
  62 };
  63
  64 // ID for the menu commands
  65 enum
  66 {
  67     MINIMAL_QUIT = 1,
  68     MINIMAL_TEXT,
  69     MINIMAL_TEST,
  70     MINIMAL_OPEN
  71 };
  72
  73 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
  74     EVT_MENU(MINIMAL_QUIT, MyFrame::OnQuit)
  75     EVT_MENU(wxID_ABOUT, MyFrame::OnAbout)
  76     EVT_MENU(MINIMAL_TEST, MyFrame::OnPlay)
  77     EVT_MENU(MINIMAL_OPEN, MyFrame::OnOpen)
  78 END_EVENT_TABLE()
  79
  80 IMPLEMENT_APP(MyApp)
  81
  82
  83 // `Main program' equivalent, creating windows and returning main app frame
  84 bool MyApp::OnInit()
  85 {
  86     const wxString langs[] =
  87     {
  88         _T("(System default)"),
  89         _T("French"),
  90         _T("German"),
  91         _T("Russian"),
  92         _T("English"),
  93         _T("English (U.S.)")
  94     };
  95
  96     SetExitOnFrameDelete(FALSE);
  97     int lng = wxGetSingleChoiceIndex(_T("Please choose language:"), _T("Language"),
  98                                    WXSIZEOF(langs), langs);
  99     SetExitOnFrameDelete(TRUE);
 100
 101     switch (lng)
 102     {
 103         case 0 : m_locale.Init(wxLANGUAGE_DEFAULT); break;
 104         case 1 : m_locale.Init(wxLANGUAGE_FRENCH); break;
 105         case 2 : m_locale.Init(wxLANGUAGE_GERMAN); break;
 106         case 3 : m_locale.Init(wxLANGUAGE_RUSSIAN); break;
 107         case 4 : m_locale.Init(wxLANGUAGE_ENGLISH); break;
 108         case -1:
 109         case 5 : m_locale.Init(wxLANGUAGE_ENGLISH_US); break;
 110     }
 111
 112     // Initialize the catalogs we'll be using
 113     /* not needed any more, done in wxLocale ctor
 114     m_locale.AddCatalog("wxstd");      // 1) for library messages
 115     */
 116     m_locale.AddCatalog(wxT("internat"));      // 2) our private one
 117     /* this catalog is installed in standard location on Linux systems,
 118      it might not be installed on yours - just ignore the errrors
 119      or comment out this line then */
 120 #ifdef __LINUX__
 121     {
 122     wxLogNull noLog;
 123     m_locale.AddCatalog("fileutils");  // 3) and another just for testing
 124     }
 125 #endif
 126
 127     // Create the main frame window
 128     MyFrame *frame = new MyFrame( (wxFrame *) NULL,
 129         _("International wxWindows App"), wxPoint(50, 50), wxSize(350, 60),
 130         m_locale);
 131
 132     // Give it an icon
 133     frame->SetIcon(wxICON(mondrian));
 134
 135     // Make a menubar
 136     wxMenu *file_menu = new wxMenu;
 137     file_menu->Append(wxID_ABOUT, _("&About..."));
 138     file_menu->AppendSeparator();
 139     file_menu->Append(MINIMAL_QUIT, _("E&xit"));
 140
 141     wxMenu *test_menu = new wxMenu;
 142     test_menu->Append(MINIMAL_OPEN, _("&Open bogus file"));
 143     test_menu->Append(MINIMAL_TEST, _("&Play a game"));
 144
 145     wxMenuBar *menu_bar = new wxMenuBar;
 146     menu_bar->Append(file_menu, _("&File"));
 147     menu_bar->Append(test_menu, _("&Test"));
 148     frame->SetMenuBar(menu_bar);
 149
 150     // Show the frame
 151     frame->Show(TRUE);
 152     SetTopWindow(frame);
 153
 154     return TRUE;
 155 }
 156
 157 // My frame constructor
 158 MyFrame::MyFrame(wxFrame *frame, const wxChar *title,
 159     const wxPoint& pos, const wxSize& size, wxLocale& l)
 160        : wxFrame(frame, -1, title, pos, size),
 161          m_locale(l)
 162 {
 163     // Empty
 164 }
 165
 166 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event) )
 167 {
 168     Close(TRUE);
 169 }
 170
 171 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 172 {
 173     wxString localeInfo;
 174     localeInfo.Printf( _("Language: %s\nSystem locale name: %s\nCanonical locale name: %s\n"),
 175         m_locale.GetLocale(),
 176         m_locale.GetSysName().c_str(),
 177         m_locale.GetCanonicalName().c_str() );
 178
 179     wxMessageDialog(this, wxString(_("I18n sample\n(c) 1998, 1999 Vadim Zeitlin and Julian Smart"))
 180         + wxT("\n\n") + localeInfo,
 181         _("About Internat"), wxOK | wxICON_INFORMATION).ShowModal();
 182 }
 183
 184 void MyFrame::OnPlay(wxCommandEvent& WXUNUSED(event))
 185 {
 186     wxString str = wxGetTextFromUser(_("Enter your number:"),
 187         _("Try to guess my number!"), wxEmptyString, this);
 188
 189     if ( str.IsEmpty() ) return;
 190
 191     int num;
 192     wxSscanf(str, wxT("%d"), &num);
 193     if ( num == 0 )
 194         str = _("You've probably entered an invalid number.");
 195     else if ( num == 9 )  // this message is not translated (not in catalog)
 196         str = "You've found a bug in this program!";
 197     else if ( num != 17 ) // a more implicit way to write _()
 198         str = wxGetTranslation(wxT("Bad luck! try again..."));
 199     else
 200     {
 201         str.Empty();
 202         // string must be split in two -- otherwise the translation won't be found
 203         str << _("Congratulations! you've won. Here is the magic phrase:")
 204             << _("cannot create fifo `%s'");
 205     }
 206
 207     wxMessageBox(str, _("Result"), wxOK | wxICON_INFORMATION);
 208 }
 209
 210 void MyFrame::OnOpen(wxCommandEvent&)
 211 {
 212     // open a bogus file -- the error message should be also translated if you've
 213     // got wxstd.mo somewhere in the search path
 214     wxFile file(wxT("NOTEXIST.ING"));
 215 }