samples/typetest/typetest.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        typetest.cpp
   3 // Purpose:     Types wxWidgets sample
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // For compilers that support precompilation, includes "wx/wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #ifdef __BORLANDC__
  16 #pragma hdrstop
  17 #endif
  18
  19 #ifndef WX_PRECOMP
  20 #include "wx/wx.h"
  21 #endif
  22
  23 #include "wx/variant.h"
  24 #include "wx/mimetype.h"
  25
  26 #include "typetest.h"
  27
  28 #if !defined(__WXMSW__) && !defined(__WXPM__)
  29     #include "../sample.xpm"
  30 #endif
  31
  32 #ifdef new
  33 #undef new
  34 #endif
  35
  36 #include "wx/ioswrap.h"
  37
  38 #if wxUSE_IOSTREAMH
  39     #include <fstream.h>
  40 #else
  41     #include <fstream>
  42 #endif
  43
  44 #include "wx/wfstream.h"
  45 #include "wx/datstrm.h"
  46 #include "wx/txtstrm.h"
  47 #include "wx/mstream.h"
  48
  49 // Create a new application object
  50 IMPLEMENT_APP    (MyApp)
  51
  52 IMPLEMENT_DYNAMIC_CLASS    (MyApp, wxApp)
  53
  54 BEGIN_EVENT_TABLE(MyApp, wxApp)
  55     EVT_MENU(TYPES_VARIANT,   MyApp::DoVariantDemo)
  56     EVT_MENU(TYPES_BYTEORDER, MyApp::DoByteOrderDemo)
  57 #if wxUSE_UNICODE
  58     EVT_MENU(TYPES_UNICODE,   MyApp::DoUnicodeDemo)
  59 #endif // wxUSE_UNICODE
  60     EVT_MENU(TYPES_STREAM, MyApp::DoStreamDemo)
  61     EVT_MENU(TYPES_STREAM2, MyApp::DoStreamDemo2)
  62     EVT_MENU(TYPES_STREAM3, MyApp::DoStreamDemo3)
  63     EVT_MENU(TYPES_STREAM4, MyApp::DoStreamDemo4)
  64     EVT_MENU(TYPES_STREAM5, MyApp::DoStreamDemo5)
  65     EVT_MENU(TYPES_STREAM6, MyApp::DoStreamDemo6)
  66     EVT_MENU(TYPES_STREAM7, MyApp::DoStreamDemo7)
  67     EVT_MENU(TYPES_MIME, MyApp::DoMIMEDemo)
  68 END_EVENT_TABLE()
  69
  70 wxString file_name = wxT("test_wx.dat");
  71 wxString file_name2 = wxString(wxT("test_wx2.dat"));
  72
  73 bool MyApp::OnInit()
  74 {
  75     if ( !wxApp::OnInit() )
  76         return false;
  77
  78     // Create the main frame window
  79     MyFrame *frame = new MyFrame((wxFrame *) NULL, wxT("wxWidgets Types Demo"),
  80                                  wxPoint(50, 50), wxSize(450, 340));
  81
  82     // Give it an icon
  83     frame->SetIcon(wxICON(sample));
  84
  85     // Make a menubar
  86     wxMenu *file_menu = new wxMenu;
  87
  88     file_menu->Append(TYPES_ABOUT, wxT("&About"));
  89     file_menu->AppendSeparator();
  90     file_menu->Append(TYPES_QUIT, wxT("E&xit\tAlt-X"));
  91
  92     wxMenu *test_menu = new wxMenu;
  93     test_menu->Append(TYPES_VARIANT, wxT("&Variant test"));
  94     test_menu->Append(TYPES_BYTEORDER, wxT("&Byteorder test"));
  95 #if wxUSE_UNICODE
  96     test_menu->Append(TYPES_UNICODE, wxT("&Unicode test"));
  97 #endif // wxUSE_UNICODE
  98     test_menu->Append(TYPES_STREAM, wxT("&Stream test"));
  99     test_menu->Append(TYPES_STREAM2, wxT("&Stream seek test"));
 100     test_menu->Append(TYPES_STREAM3, wxT("&Stream error test"));
 101     test_menu->Append(TYPES_STREAM4, wxT("&Stream buffer test"));
 102     test_menu->Append(TYPES_STREAM5, wxT("&Stream peek test"));
 103     test_menu->Append(TYPES_STREAM6, wxT("&Stream ungetch test"));
 104     test_menu->Append(TYPES_STREAM7, wxT("&Stream ungetch test for a buffered stream"));
 105     test_menu->AppendSeparator();
 106     test_menu->Append(TYPES_MIME, wxT("&MIME database test"));
 107
 108     wxMenuBar *menu_bar = new wxMenuBar;
 109     menu_bar->Append(file_menu, wxT("&File"));
 110     menu_bar->Append(test_menu, wxT("&Tests"));
 111     frame->SetMenuBar(menu_bar);
 112
 113     m_textCtrl = new wxTextCtrl(frame, wxID_ANY, wxEmptyString,
 114         wxDefaultPosition, wxDefaultSize, wxTE_MULTILINE);
 115
 116     // Show the frame
 117     frame->Show(true);
 118
 119     SetTopWindow(frame);
 120
 121     return true;
 122 }
 123
 124 void MyApp::DoStreamDemo(wxCommandEvent& WXUNUSED(event))
 125 {
 126     wxTextCtrl& textCtrl = * GetTextCtrl();
 127
 128     textCtrl.Clear();
 129     textCtrl << wxT("\nTest fstream vs. wxFileStream:\n\n");
 130
 131     textCtrl.WriteText( wxT("Writing to ofstream and wxFileOutputStream:\n") );
 132
 133     wxSTD ofstream std_file_output( "test_std.dat" );
 134     wxFileOutputStream file_output( file_name );
 135     wxBufferedOutputStream buf_output( file_output );
 136     wxTextOutputStream text_output( buf_output );
 137
 138     wxString tmp;
 139     signed int si = 0xFFFFFFFF;
 140     tmp.Printf( wxT("Signed int: %d\n"), si );
 141     textCtrl.WriteText( tmp );
 142     text_output << si << wxT("\n");
 143     std_file_output << si << "\n";
 144
 145     unsigned int ui = 0xFFFFFFFF;
 146     tmp.Printf( wxT("Unsigned int: %u\n"), ui );
 147     textCtrl.WriteText( tmp );
 148     text_output << ui << wxT("\n");
 149     std_file_output << ui << "\n";
 150
 151     double d = 2.01234567890123456789;
 152     tmp.Printf( wxT("Double: %f\n"), d );
 153     textCtrl.WriteText( tmp );
 154     text_output << d << wxT("\n");
 155     std_file_output << d << "\n";
 156
 157     float f = (float)0.00001;
 158     tmp.Printf( wxT("Float: %f\n"), f );
 159     textCtrl.WriteText( tmp );
 160     text_output << f << wxT("\n");
 161     std_file_output << f << "\n";
 162
 163     wxString str( wxT("Hello!") );
 164     tmp.Printf( wxT("String: %s\n"), str.c_str() );
 165     textCtrl.WriteText( tmp );
 166     text_output << str << wxT("\n");
 167     std_file_output << str.ToAscii() << "\n";
 168
 169     std_file_output.close();
 170
 171     textCtrl.WriteText( wxT("\nReading from ifstream:\n") );
 172
 173     wxSTD ifstream std_file_input( "test_std.dat" );
 174
 175     std_file_input >> si;
 176     tmp.Printf( wxT("Signed int: %d\n"), si );
 177     textCtrl.WriteText( tmp );
 178
 179     std_file_input >> ui;
 180     tmp.Printf( wxT("Unsigned int: %u\n"), ui );
 181     textCtrl.WriteText( tmp );
 182
 183     std_file_input >> d;
 184     tmp.Printf( wxT("Double: %f\n"), d );
 185     textCtrl.WriteText( tmp );
 186
 187     std_file_input >> f;
 188     tmp.Printf( wxT("Float: %f\n"), f );
 189     textCtrl.WriteText( tmp );
 190
 191     char std_buf[200];
 192     std_file_input >> std_buf;
 193     str = wxString::FromAscii(std_buf);
 194     tmp.Printf( wxT("String: %s\n"), str.c_str() );
 195     textCtrl.WriteText( tmp );
 196
 197     textCtrl.WriteText( wxT("\nReading from wxFileInputStream:\n") );
 198
 199     buf_output.Sync();
 200
 201     wxFileInputStream file_input( file_name );
 202     wxBufferedInputStream buf_input( file_input );
 203     wxTextInputStream text_input( file_input );
 204
 205     text_input >> si;
 206     tmp.Printf( wxT("Signed int: %d\n"), si );
 207     textCtrl.WriteText( tmp );
 208
 209     text_input >> ui;
 210     tmp.Printf( wxT("Unsigned int: %u\n"), ui );
 211     textCtrl.WriteText( tmp );
 212
 213     text_input >> d;
 214     tmp.Printf( wxT("Double: %f\n"), d );
 215     textCtrl.WriteText( tmp );
 216
 217     text_input >> f;
 218     tmp.Printf( wxT("Float: %f\n"), f );
 219     textCtrl.WriteText( tmp );
 220
 221     text_input >> str;
 222     tmp.Printf( wxT("String: %s\n"), str.c_str() );
 223     textCtrl.WriteText( tmp );
 224
 225
 226
 227     textCtrl << wxT("\nTest for wxDataStream:\n\n");
 228
 229     textCtrl.WriteText( wxT("Writing to wxDataOutputStream:\n") );
 230
 231     file_output.SeekO( 0 );
 232     wxDataOutputStream data_output( buf_output );
 233
 234     wxInt16 i16 = (unsigned short)0xFFFF;
 235     tmp.Printf( wxT("Signed int16: %d\n"), (int)i16 );
 236     textCtrl.WriteText( tmp );
 237     data_output.Write16( i16 );
 238
 239     wxUint16 ui16 = 0xFFFF;
 240     tmp.Printf( wxT("Unsigned int16: %u\n"), (unsigned int) ui16 );
 241     textCtrl.WriteText( tmp );
 242     data_output.Write16( ui16 );
 243
 244     d = 2.01234567890123456789;
 245     tmp.Printf( wxT("Double: %f\n"), d );
 246     textCtrl.WriteText( tmp );
 247     data_output.WriteDouble( d );
 248
 249     str = wxT("Hello!");
 250     tmp.Printf( wxT("String: %s\n"), str.c_str() );
 251     textCtrl.WriteText( tmp );
 252     data_output.WriteString( str );
 253
 254     buf_output.Sync();
 255
 256     textCtrl.WriteText( wxT("\nReading from wxDataInputStream:\n") );
 257
 258     file_input.SeekI( 0 );
 259     wxDataInputStream data_input( buf_input );
 260
 261     i16 = data_input.Read16();
 262     tmp.Printf( wxT("Signed int16: %d\n"), (int)i16 );
 263     textCtrl.WriteText( tmp );
 264
 265     ui16 = data_input.Read16();
 266     tmp.Printf( wxT("Unsigned int16: %u\n"), (unsigned int) ui16 );
 267     textCtrl.WriteText( tmp );
 268
 269     d = data_input.ReadDouble();
 270     tmp.Printf( wxT("Double: %f\n"), d );
 271     textCtrl.WriteText( tmp );
 272
 273     str = data_input.ReadString();
 274     tmp.Printf( wxT("String: %s\n"), str.c_str() );
 275     textCtrl.WriteText( tmp );
 276 }
 277
 278 void MyApp::DoStreamDemo2(wxCommandEvent& WXUNUSED(event))
 279 {
 280     wxTextCtrl& textCtrl = * GetTextCtrl();
 281
 282     textCtrl.Clear();
 283     textCtrl << wxT("\nTesting wxBufferedStream:\n\n");
 284
 285     char ch,ch2;
 286
 287     textCtrl.WriteText( wxT("Writing number 0 to 9 to buffered wxFileOutputStream:\n\n") );
 288
 289     wxFileOutputStream file_output( file_name );
 290     wxBufferedOutputStream buf_output( file_output );
 291     for (ch = 0; ch < 10; ch++)
 292         buf_output.Write( &ch, 1 );
 293     buf_output.Sync();
 294
 295     wxFileInputStream file_input( file_name );
 296     for (ch2 = 0; ch2 < 10; ch2++)
 297     {
 298         file_input.Read( &ch, 1 );
 299         textCtrl.WriteText( (wxChar)(ch + wxT('0')) );
 300     }
 301     textCtrl.WriteText( wxT("\n\n\n") );
 302
 303     textCtrl.WriteText( wxT("Writing number 0 to 9 to buffered wxFileOutputStream, then\n") );
 304     textCtrl.WriteText( wxT("seeking back to #3 and writing 0:\n\n") );
 305
 306     wxFileOutputStream file_output2( file_name2 );
 307     wxBufferedOutputStream buf_output2( file_output2 );
 308     for (ch = 0; ch < 10; ch++)
 309         buf_output2.Write( &ch, 1 );
 310     buf_output2.SeekO( 3 );
 311     ch = 0;
 312     buf_output2.Write( &ch, 1 );
 313     buf_output2.Sync();
 314
 315     wxFileInputStream file_input2( file_name2 );
 316     for (ch2 = 0; ch2 < 10; ch2++)
 317     {
 318         file_input2.Read( &ch, 1 );
 319         textCtrl.WriteText( (wxChar)(ch + wxT('0')) );
 320     }
 321     textCtrl.WriteText( wxT("\n\n\n") );
 322
 323     // now append 2000 bytes to file (bigger than buffer)
 324     buf_output2.SeekO( 0, wxFromEnd );
 325     ch = 1;
 326     for (int i = 0; i < 2000; i++)
 327        buf_output2.Write( &ch, 1 );
 328     buf_output2.Sync();
 329
 330     textCtrl.WriteText( wxT("Reading number 0 to 9 from buffered wxFileInputStream, then\n") );
 331     textCtrl.WriteText( wxT("seeking back to #3 and reading the 0:\n\n") );
 332
 333     wxFileInputStream file_input3( file_name2 );
 334     wxBufferedInputStream buf_input3( file_input3 );
 335     for (ch2 = 0; ch2 < 10; ch2++)
 336     {
 337         buf_input3.Read( &ch, 1 );
 338         textCtrl.WriteText( (wxChar)(ch + wxT('0')) );
 339     }
 340     for (int j = 0; j < 2000; j++)
 341        buf_input3.Read( &ch, 1 );
 342     textCtrl.WriteText( wxT("\n") );
 343     buf_input3.SeekI( 3 );
 344     buf_input3.Read( &ch, 1 );
 345     textCtrl.WriteText( (wxChar)(ch + wxT('0')) );
 346     textCtrl.WriteText( wxT("\n\n\n") );
 347
 348 }
 349
 350 void MyApp::DoStreamDemo3(wxCommandEvent& WXUNUSED(event))
 351 {
 352     wxTextCtrl& textCtrl = * GetTextCtrl();
 353
 354     textCtrl.Clear();
 355     textCtrl << wxT("\nTesting wxFileInputStream's and wxFFileInputStream's error handling:\n\n");
 356
 357     char ch,ch2;
 358
 359     textCtrl.WriteText( wxT("Writing number 0 to 9 to wxFileOutputStream:\n\n") );
 360
 361     wxFileOutputStream file_output( file_name );
 362     for (ch = 0; ch < 10; ch++)
 363         file_output.Write( &ch, 1 );
 364
 365     // Testing wxFileInputStream
 366
 367     textCtrl.WriteText( wxT("Reading 0 to 10 to wxFileInputStream:\n\n") );
 368
 369     wxFileInputStream file_input( file_name );
 370     for (ch2 = 0; ch2 < 11; ch2++)
 371     {
 372         file_input.Read( &ch, 1 );
 373         textCtrl.WriteText( wxT("Value read: ") );
 374         textCtrl.WriteText( (wxChar)(ch + '0') );
 375         textCtrl.WriteText( wxT(";  stream.GetLastError() returns: ") );
 376         switch (file_input.GetLastError())
 377         {
 378             case wxSTREAM_NO_ERROR:      textCtrl.WriteText( wxT("wxSTREAM_NO_ERROR\n") ); break;
 379             case wxSTREAM_EOF:          textCtrl.WriteText( wxT("wxSTREAM_EOF\n") ); break;
 380             case wxSTREAM_READ_ERROR:   textCtrl.WriteText( wxT("wxSTREAM_READ_ERROR\n") ); break;
 381             case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( wxT("wxSTREAM_WRITE_ERROR\n") ); break;
 382             default: textCtrl.WriteText( wxT("Huh?\n") ); break;
 383         }
 384     }
 385     textCtrl.WriteText( wxT("\n") );
 386
 387     textCtrl.WriteText( wxT("Seeking to 0;  stream.GetLastError() returns: ") );
 388     file_input.SeekI( 0 );
 389     switch (file_input.GetLastError())
 390     {
 391         case wxSTREAM_NO_ERROR:      textCtrl.WriteText( wxT("wxSTREAM_NO_ERROR\n") ); break;
 392         case wxSTREAM_EOF:          textCtrl.WriteText( wxT("wxSTREAM_EOF\n") ); break;
 393         case wxSTREAM_READ_ERROR:   textCtrl.WriteText( wxT("wxSTREAM_READ_ERROR\n") ); break;
 394         case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( wxT("wxSTREAM_WRITE_ERROR\n") ); break;
 395         default: textCtrl.WriteText( wxT("Huh?\n") ); break;
 396     }
 397     textCtrl.WriteText( wxT("\n") );
 398
 399     file_input.Read( &ch, 1 );
 400     textCtrl.WriteText( wxT("Value read: ") );
 401     textCtrl.WriteText( (wxChar)(ch + wxT('0')) );
 402     textCtrl.WriteText( wxT(";  stream.GetLastError() returns: ") );
 403     switch (file_input.GetLastError())
 404     {
 405         case wxSTREAM_NO_ERROR:      textCtrl.WriteText( wxT("wxSTREAM_NO_ERROR\n") ); break;
 406         case wxSTREAM_EOF:          textCtrl.WriteText( wxT("wxSTREAM_EOF\n") ); break;
 407         case wxSTREAM_READ_ERROR:   textCtrl.WriteText( wxT("wxSTREAM_READ_ERROR\n") ); break;
 408         case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( wxT("wxSTREAM_WRITE_ERROR\n") ); break;
 409         default: textCtrl.WriteText( wxT("Huh?\n") ); break;
 410     }
 411     textCtrl.WriteText( wxT("\n\n") );
 412
 413
 414     // Testing wxFFileInputStream
 415
 416     textCtrl.WriteText( wxT("Reading 0 to 10 to wxFFileInputStream:\n\n") );
 417
 418     wxFFileInputStream ffile_input( file_name );
 419     for (ch2 = 0; ch2 < 11; ch2++)
 420     {
 421         ffile_input.Read( &ch, 1 );
 422         textCtrl.WriteText( wxT("Value read: ") );
 423         textCtrl.WriteText( (wxChar)(ch + '0') );
 424         textCtrl.WriteText( wxT(";  stream.GetLastError() returns: ") );
 425         switch (ffile_input.GetLastError())
 426         {
 427             case wxSTREAM_NO_ERROR:      textCtrl.WriteText( wxT("wxSTREAM_NO_ERROR\n") ); break;
 428             case wxSTREAM_EOF:          textCtrl.WriteText( wxT("wxSTREAM_EOF\n") ); break;
 429             case wxSTREAM_READ_ERROR:   textCtrl.WriteText( wxT("wxSTREAM_READ_ERROR\n") ); break;
 430             case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( wxT("wxSTREAM_WRITE_ERROR\n") ); break;
 431             default: textCtrl.WriteText( wxT("Huh?\n") ); break;
 432         }
 433     }
 434     textCtrl.WriteText( wxT("\n") );
 435
 436     textCtrl.WriteText( wxT("Seeking to 0;  stream.GetLastError() returns: ") );
 437     ffile_input.SeekI( 0 );
 438     switch (ffile_input.GetLastError())
 439     {
 440         case wxSTREAM_NO_ERROR:      textCtrl.WriteText( wxT("wxSTREAM_NO_ERROR\n") ); break;
 441         case wxSTREAM_EOF:          textCtrl.WriteText( wxT("wxSTREAM_EOF\n") ); break;
 442         case wxSTREAM_READ_ERROR:   textCtrl.WriteText( wxT("wxSTREAM_READ_ERROR\n") ); break;
 443         case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( wxT("wxSTREAM_WRITE_ERROR\n") ); break;
 444         default: textCtrl.WriteText( wxT("Huh?\n") ); break;
 445     }
 446     textCtrl.WriteText( wxT("\n") );
 447
 448     ffile_input.Read( &ch, 1 );
 449     textCtrl.WriteText( wxT("Value read: ") );
 450     textCtrl.WriteText( (wxChar)(ch + '0') );
 451     textCtrl.WriteText( wxT(";  stream.GetLastError() returns: ") );
 452     switch (ffile_input.GetLastError())
 453     {
 454         case wxSTREAM_NO_ERROR:      textCtrl.WriteText( wxT("wxSTREAM_NO_ERROR\n") ); break;
 455         case wxSTREAM_EOF:          textCtrl.WriteText( wxT("wxSTREAM_EOF\n") ); break;
 456         case wxSTREAM_READ_ERROR:   textCtrl.WriteText( wxT("wxSTREAM_READ_ERROR\n") ); break;
 457         case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( wxT("wxSTREAM_WRITE_ERROR\n") ); break;
 458         default: textCtrl.WriteText( wxT("Huh?\n") ); break;
 459     }
 460     textCtrl.WriteText( wxT("\n\n") );
 461
 462     // Testing wxFFileInputStream
 463
 464     textCtrl.WriteText( wxT("Reading 0 to 10 to buffered wxFFileInputStream:\n\n") );
 465
 466     wxFFileInputStream ffile_input2( file_name );
 467     wxBufferedInputStream buf_input( ffile_input2 );
 468     for (ch2 = 0; ch2 < 11; ch2++)
 469     {
 470         buf_input.Read( &ch, 1 );
 471         textCtrl.WriteText( wxT("Value read: ") );
 472         textCtrl.WriteText( (wxChar)(ch + '0') );
 473         textCtrl.WriteText( wxT(";  stream.GetLastError() returns: ") );
 474         switch (buf_input.GetLastError())
 475         {
 476             case wxSTREAM_NO_ERROR:      textCtrl.WriteText( wxT("wxSTREAM_NO_ERROR\n") ); break;
 477             case wxSTREAM_EOF:          textCtrl.WriteText( wxT("wxSTREAM_EOF\n") ); break;
 478             case wxSTREAM_READ_ERROR:   textCtrl.WriteText( wxT("wxSTREAM_READ_ERROR\n") ); break;
 479             case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( wxT("wxSTREAM_WRITE_ERROR\n") ); break;
 480             default: textCtrl.WriteText( wxT("Huh?\n") ); break;
 481         }
 482     }
 483     textCtrl.WriteText( wxT("\n") );
 484
 485     textCtrl.WriteText( wxT("Seeking to 0;  stream.GetLastError() returns: ") );
 486     buf_input.SeekI( 0 );
 487     switch (buf_input.GetLastError())
 488     {
 489         case wxSTREAM_NO_ERROR:      textCtrl.WriteText( wxT("wxSTREAM_NO_ERROR\n") ); break;
 490         case wxSTREAM_EOF:          textCtrl.WriteText( wxT("wxSTREAM_EOF\n") ); break;
 491         case wxSTREAM_READ_ERROR:   textCtrl.WriteText( wxT("wxSTREAM_READ_ERROR\n") ); break;
 492         case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( wxT("wxSTREAM_WRITE_ERROR\n") ); break;
 493         default: textCtrl.WriteText( wxT("Huh?\n") ); break;
 494     }
 495     textCtrl.WriteText( wxT("\n") );
 496
 497     buf_input.Read( &ch, 1 );
 498     textCtrl.WriteText( wxT("Value read: ") );
 499     textCtrl.WriteText( (wxChar)(ch + '0') );
 500     textCtrl.WriteText( wxT(";  stream.GetLastError() returns: ") );
 501     switch (buf_input.GetLastError())
 502     {
 503         case wxSTREAM_NO_ERROR:      textCtrl.WriteText( wxT("wxSTREAM_NO_ERROR\n") ); break;
 504         case wxSTREAM_EOF:          textCtrl.WriteText( wxT("wxSTREAM_EOF\n") ); break;
 505         case wxSTREAM_READ_ERROR:   textCtrl.WriteText( wxT("wxSTREAM_READ_ERROR\n") ); break;
 506         case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( wxT("wxSTREAM_WRITE_ERROR\n") ); break;
 507         default: textCtrl.WriteText( wxT("Huh?\n") ); break;
 508     }
 509 }
 510
 511 void MyApp::DoStreamDemo4(wxCommandEvent& WXUNUSED(event))
 512 {
 513     wxTextCtrl& textCtrl = * GetTextCtrl();
 514
 515     wxString msg;
 516
 517     textCtrl.Clear();
 518     textCtrl << wxT("\nTesting wxStreamBuffer:\n\n");
 519
 520     // bigger than buffer
 521     textCtrl.WriteText( wxT("Writing 2000x 1 to wxFileOutputStream.\n\n") );
 522
 523     wxFileOutputStream file_output( file_name );
 524     for (int i = 0; i < 2000; i++)
 525     {
 526         char ch = 1;
 527         file_output.Write( &ch, 1 );
 528     }
 529
 530     textCtrl.WriteText( wxT("Opening with a buffered wxFileInputStream:\n\n") );
 531
 532     wxFileInputStream file_input( file_name );
 533     wxBufferedInputStream buf_input( file_input );
 534
 535     textCtrl.WriteText( wxT("wxBufferedInputStream.GetLastError() returns: ") );
 536     switch (buf_input.GetLastError())
 537     {
 538         case wxSTREAM_NO_ERROR:      textCtrl.WriteText( wxT("wxSTREAM_NO_ERROR\n") ); break;
 539         case wxSTREAM_EOF:          textCtrl.WriteText( wxT("wxSTREAM_EOF\n") ); break;
 540         case wxSTREAM_READ_ERROR:   textCtrl.WriteText( wxT("wxSTREAM_READ_ERROR\n") ); break;
 541         case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( wxT("wxSTREAM_WRITE_ERROR\n") ); break;
 542         default: textCtrl.WriteText( wxT("Huh?\n") ); break;
 543     }
 544     msg.Printf( wxT("wxBufferedInputStream.LastRead() returns: %d\n"), (int)buf_input.LastRead() );
 545     textCtrl.WriteText( msg );
 546     msg.Printf( wxT("wxBufferedInputStream.TellI() returns: %d\n"), (int)buf_input.TellI() );
 547     textCtrl.WriteText( msg );
 548     textCtrl.WriteText( wxT("\n\n") );
 549
 550
 551     textCtrl.WriteText( wxT("Seeking to position 300:\n\n") );
 552
 553     buf_input.SeekI( 300 );
 554
 555     textCtrl.WriteText( wxT("wxBufferedInputStream.GetLastError() returns: ") );
 556     switch (buf_input.GetLastError())
 557     {
 558         case wxSTREAM_NO_ERROR:      textCtrl.WriteText( wxT("wxSTREAM_NO_ERROR\n") ); break;
 559         case wxSTREAM_EOF:          textCtrl.WriteText( wxT("wxSTREAM_EOF\n") ); break;
 560         case wxSTREAM_READ_ERROR:   textCtrl.WriteText( wxT("wxSTREAM_READ_ERROR\n") ); break;
 561         case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( wxT("wxSTREAM_WRITE_ERROR\n") ); break;
 562         default: textCtrl.WriteText( wxT("Huh?\n") ); break;
 563     }
 564     msg.Printf( wxT("wxBufferedInputStream.LastRead() returns: %d\n"), (int)buf_input.LastRead() );
 565     textCtrl.WriteText( msg );
 566     msg.Printf( wxT("wxBufferedInputStream.TellI() returns: %d\n"), (int)buf_input.TellI() );
 567     textCtrl.WriteText( msg );
 568     textCtrl.WriteText( wxT("\n\n") );
 569
 570
 571     char buf[2000];
 572
 573     textCtrl.WriteText( wxT("Reading 500 bytes:\n\n") );
 574
 575     buf_input.Read( buf, 500 );
 576
 577     textCtrl.WriteText( wxT("wxBufferedInputStream.GetLastError() returns: ") );
 578     switch (buf_input.GetLastError())
 579     {
 580         case wxSTREAM_NO_ERROR:      textCtrl.WriteText( wxT("wxSTREAM_NO_ERROR\n") ); break;
 581         case wxSTREAM_EOF:          textCtrl.WriteText( wxT("wxSTREAM_EOF\n") ); break;
 582         case wxSTREAM_READ_ERROR:   textCtrl.WriteText( wxT("wxSTREAM_READ_ERROR\n") ); break;
 583         case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( wxT("wxSTREAM_WRITE_ERROR\n") ); break;
 584         default: textCtrl.WriteText( wxT("Huh?\n") ); break;
 585     }
 586     msg.Printf( wxT("wxBufferedInputStream.LastRead() returns: %d\n"), (int)buf_input.LastRead() );
 587     textCtrl.WriteText( msg );
 588     msg.Printf( wxT("wxBufferedInputStream.TellI() returns: %d\n"), (int)buf_input.TellI() );
 589     textCtrl.WriteText( msg );
 590     textCtrl.WriteText( wxT("\n\n") );
 591
 592     textCtrl.WriteText( wxT("Reading another 500 bytes:\n\n") );
 593
 594     buf_input.Read( buf, 500 );
 595
 596     textCtrl.WriteText( wxT("wxBufferedInputStream.GetLastError() returns: ") );
 597     switch (buf_input.GetLastError())
 598     {
 599         case wxSTREAM_NO_ERROR:      textCtrl.WriteText( wxT("wxSTREAM_NO_ERROR\n") ); break;
 600         case wxSTREAM_EOF:          textCtrl.WriteText( wxT("wxSTREAM_EOF\n") ); break;
 601         case wxSTREAM_READ_ERROR:   textCtrl.WriteText( wxT("wxSTREAM_READ_ERROR\n") ); break;
 602         case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( wxT("wxSTREAM_WRITE_ERROR\n") ); break;
 603         default: textCtrl.WriteText( wxT("Huh?\n") ); break;
 604     }
 605     msg.Printf( wxT("wxBufferedInputStream.LastRead() returns: %d\n"), (int)buf_input.LastRead() );
 606     textCtrl.WriteText( msg );
 607     msg.Printf( wxT("wxBufferedInputStream.TellI() returns: %d\n"), (int)buf_input.TellI() );
 608     textCtrl.WriteText( msg );
 609     textCtrl.WriteText( wxT("\n\n") );
 610
 611     textCtrl.WriteText( wxT("Reading another 500 bytes:\n\n") );
 612
 613     buf_input.Read( buf, 500 );
 614
 615     textCtrl.WriteText( wxT("wxBufferedInputStream.GetLastError() returns: ") );
 616     switch (buf_input.GetLastError())
 617     {
 618         case wxSTREAM_NO_ERROR:      textCtrl.WriteText( wxT("wxSTREAM_NO_ERROR\n") ); break;
 619         case wxSTREAM_EOF:          textCtrl.WriteText( wxT("wxSTREAM_EOF\n") ); break;
 620         case wxSTREAM_READ_ERROR:   textCtrl.WriteText( wxT("wxSTREAM_READ_ERROR\n") ); break;
 621         case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( wxT("wxSTREAM_WRITE_ERROR\n") ); break;
 622         default: textCtrl.WriteText( wxT("Huh?\n") ); break;
 623     }
 624     msg.Printf( wxT("wxBufferedInputStream.LastRead() returns: %d\n"), (int)buf_input.LastRead() );
 625     textCtrl.WriteText( msg );
 626     msg.Printf( wxT("wxBufferedInputStream.TellI() returns: %d\n"), (int)buf_input.TellI() );
 627     textCtrl.WriteText( msg );
 628     textCtrl.WriteText( wxT("\n\n") );
 629
 630     textCtrl.WriteText( wxT("Reading another 500 bytes:\n\n") );
 631
 632     buf_input.Read( buf, 500 );
 633
 634     textCtrl.WriteText( wxT("wxBufferedInputStream.GetLastError() returns: ") );
 635     switch (buf_input.GetLastError())
 636     {
 637         case wxSTREAM_NO_ERROR:      textCtrl.WriteText( wxT("wxSTREAM_NO_ERROR\n") ); break;
 638         case wxSTREAM_EOF:          textCtrl.WriteText( wxT("wxSTREAM_EOF\n") ); break;
 639         case wxSTREAM_READ_ERROR:   textCtrl.WriteText( wxT("wxSTREAM_READ_ERROR\n") ); break;
 640         case wxSTREAM_WRITE_ERROR:  textCtrl.WriteText( wxT("wxSTREAM_WRITE_ERROR\n") ); break;
 641         default: textCtrl.WriteText( wxT("Huh?\n") ); break;
 642     }
 643     msg.Printf( wxT("wxBufferedInputStream.LastRead() returns: %d\n"), (int)buf_input.LastRead() );
 644     textCtrl.WriteText( msg );
 645     msg.Printf( wxT("wxBufferedInputStream.TellI() returns: %d\n"), (int)buf_input.TellI() );
 646     textCtrl.WriteText( msg );
 647     textCtrl.WriteText( wxT("\n\n") );
 648 }
 649
 650 void MyApp::DoStreamDemo5(wxCommandEvent& WXUNUSED(event))
 651 {
 652     wxTextCtrl& textCtrl = * GetTextCtrl();
 653
 654     textCtrl.Clear();
 655     textCtrl << wxT("\nTesting wxFileInputStream's Peek():\n\n");
 656
 657     char ch;
 658     wxString str;
 659
 660     textCtrl.WriteText( wxT("Writing number 0 to 9 to wxFileOutputStream:\n\n") );
 661
 662     wxFileOutputStream file_output( file_name );
 663     for (ch = 0; ch < 10; ch++)
 664         file_output.Write( &ch, 1 );
 665
 666     file_output.Sync();
 667
 668     wxFileInputStream file_input( file_name );
 669
 670     ch = file_input.Peek();
 671     str.Printf( wxT("First char peeked: %d\n"), (int) ch );
 672     textCtrl.WriteText( str );
 673
 674     ch = file_input.GetC();
 675     str.Printf( wxT("First char read: %d\n"), (int) ch );
 676     textCtrl.WriteText( str );
 677
 678     ch = file_input.Peek();
 679     str.Printf( wxT("Second char peeked: %d\n"), (int) ch );
 680     textCtrl.WriteText( str );
 681
 682     ch = file_input.GetC();
 683     str.Printf( wxT("Second char read: %d\n"), (int) ch );
 684     textCtrl.WriteText( str );
 685
 686     ch = file_input.Peek();
 687     str.Printf( wxT("Third char peeked: %d\n"), (int) ch );
 688     textCtrl.WriteText( str );
 689
 690     ch = file_input.GetC();
 691     str.Printf( wxT("Third char read: %d\n"), (int) ch );
 692     textCtrl.WriteText( str );
 693
 694
 695     textCtrl << wxT("\n\n\nTesting wxMemoryInputStream's Peek():\n\n");
 696
 697     char buf[] = { 0,1,2,3,4,5,6,7,8,9,10 };
 698     wxMemoryInputStream input( buf, 10 );
 699
 700     ch = input.Peek();
 701     str.Printf( wxT("First char peeked: %d\n"), (int) ch );
 702     textCtrl.WriteText( str );
 703
 704     ch = input.GetC();
 705     str.Printf( wxT("First char read: %d\n"), (int) ch );
 706     textCtrl.WriteText( str );
 707
 708     ch = input.Peek();
 709     str.Printf( wxT("Second char peeked: %d\n"), (int) ch );
 710     textCtrl.WriteText( str );
 711
 712     ch = input.GetC();
 713     str.Printf( wxT("Second char read: %d\n"), (int) ch );
 714     textCtrl.WriteText( str );
 715
 716     ch = input.Peek();
 717     str.Printf( wxT("Third char peeked: %d\n"), (int) ch );
 718     textCtrl.WriteText( str );
 719
 720     ch = input.GetC();
 721     str.Printf( wxT("Third char read: %d\n"), (int) ch );
 722     textCtrl.WriteText( str );
 723 }
 724
 725 void MyApp::DoStreamDemo6(wxCommandEvent& WXUNUSED(event))
 726 {
 727     wxTextCtrl& textCtrl = * GetTextCtrl();
 728
 729     textCtrl.Clear();
 730     textCtrl.WriteText( wxT("\nTesting Ungetch():\n\n") );
 731
 732     char ch = 0;
 733     wxString str;
 734
 735     textCtrl.WriteText( wxT("Writing number 0 to 9 to wxFileOutputStream...\n\n") );
 736
 737     wxFileOutputStream file_output( file_name );
 738     for (ch = 0; ch < 10; ch++)
 739         file_output.Write( &ch, 1 );
 740
 741     file_output.Sync();
 742
 743     textCtrl.WriteText( wxT("Reading char from wxFileInputStream:\n\n") );
 744
 745     wxFileInputStream file_input( file_name );
 746
 747     ch = file_input.GetC();
 748     size_t pos = (size_t)file_input.TellI();
 749     str.Printf( wxT("Read char: %d. Now at position %d\n\n"), (int) ch, (int) pos );
 750     textCtrl.WriteText( str );
 751
 752     textCtrl.WriteText( wxT("Reading another char from wxFileInputStream:\n\n") );
 753
 754     ch = file_input.GetC();
 755     pos = (size_t)file_input.TellI();
 756     str.Printf( wxT("Read char: %d. Now at position %d\n\n"), (int) ch, (int) pos );
 757     textCtrl.WriteText( str );
 758
 759     textCtrl.WriteText( wxT("Reading yet another char from wxFileInputStream:\n\n") );
 760
 761     ch = file_input.GetC();
 762     pos = (size_t)file_input.TellI();
 763     str.Printf( wxT("Read char: %d. Now at position %d\n\n"), (int) ch, (int) pos );
 764     textCtrl.WriteText( str );
 765
 766     textCtrl.WriteText( wxT("Now calling Ungetch( 5 ) from wxFileInputStream...\n\n") );
 767
 768     file_input.Ungetch( 5 );
 769     pos = (size_t)file_input.TellI();
 770     str.Printf( wxT("Now at position %d\n\n"), (int) pos );
 771     textCtrl.WriteText( str );
 772
 773     textCtrl.WriteText( wxT("Reading char from wxFileInputStream:\n\n") );
 774
 775     ch = file_input.GetC();
 776     pos = (size_t)file_input.TellI();
 777     str.Printf( wxT("Read char: %d. Now at position %d\n\n"), (int) ch, (int) pos );
 778     textCtrl.WriteText( str );
 779
 780     textCtrl.WriteText( wxT("Reading another char from wxFileInputStream:\n\n") );
 781
 782     ch = file_input.GetC();
 783     pos = (size_t)file_input.TellI();
 784     str.Printf( wxT("Read char: %d. Now at position %d\n\n"), (int) ch, (int) pos );
 785     textCtrl.WriteText( str );
 786
 787     textCtrl.WriteText( wxT("Now calling Ungetch( 5 ) from wxFileInputStream again...\n\n") );
 788
 789     file_input.Ungetch( 5 );
 790     pos = (size_t)file_input.TellI();
 791     str.Printf( wxT("Now at position %d\n\n"), (int) pos );
 792     textCtrl.WriteText( str );
 793
 794     textCtrl.WriteText( wxT("Seeking to pos 3 in wxFileInputStream. This invalidates the writeback buffer.\n\n") );
 795
 796     file_input.SeekI( 3 );
 797
 798     ch = file_input.GetC();
 799     pos = (size_t)file_input.TellI();
 800     str.Printf( wxT("Read char: %d. Now at position %d\n\n"), (int) ch, (int) pos );
 801     textCtrl.WriteText( str );
 802 }
 803
 804 void MyApp::DoStreamDemo7(wxCommandEvent& WXUNUSED(event))
 805 {
 806     wxTextCtrl& textCtrl = * GetTextCtrl();
 807
 808     textCtrl.Clear();
 809     textCtrl.WriteText( wxT("\nTesting Ungetch() in buffered input stream:\n\n") );
 810
 811     char ch = 0;
 812     wxString str;
 813
 814     textCtrl.WriteText( wxT("Writing number 0 to 9 to wxFileOutputStream...\n\n") );
 815
 816     wxFileOutputStream file_output( file_name );
 817     for (ch = 0; ch < 10; ch++)
 818         file_output.Write( &ch, 1 );
 819
 820     file_output.Sync();
 821
 822     textCtrl.WriteText( wxT("Reading char from wxBufferedInputStream via wxFileInputStream:\n\n") );
 823
 824     wxFileInputStream file_input( file_name );
 825     wxBufferedInputStream buf_input( file_input );
 826
 827     ch = buf_input.GetC();
 828     size_t pos = (size_t)buf_input.TellI();
 829     str.Printf( wxT("Read char: %d. Now at position %d\n\n"), (int) ch, (int) pos );
 830     textCtrl.WriteText( str );
 831
 832     textCtrl.WriteText( wxT("Reading another char from wxBufferedInputStream:\n\n") );
 833
 834     ch = buf_input.GetC();
 835     pos = (size_t)buf_input.TellI();
 836     str.Printf( wxT("Read char: %d. Now at position %d\n\n"), (int) ch, (int) pos );
 837     textCtrl.WriteText( str );
 838
 839     textCtrl.WriteText( wxT("Reading yet another char from wxBufferedInputStream:\n\n") );
 840
 841     ch = buf_input.GetC();
 842     pos = (size_t)buf_input.TellI();
 843     str.Printf( wxT("Read char: %d. Now at position %d\n\n"), (int) ch, (int) pos );
 844     textCtrl.WriteText( str );
 845
 846     textCtrl.WriteText( wxT("Now calling Ungetch( 5 ) from wxBufferedInputStream...\n\n") );
 847
 848     buf_input.Ungetch( 5 );
 849     pos = (size_t)buf_input.TellI();
 850     str.Printf( wxT("Now at position %d\n\n"), (int) pos );
 851     textCtrl.WriteText( str );
 852
 853     textCtrl.WriteText( wxT("Reading char from wxBufferedInputStream:\n\n") );
 854
 855     ch = buf_input.GetC();
 856     pos = (size_t)buf_input.TellI();
 857     str.Printf( wxT("Read char: %d. Now at position %d\n\n"), (int) ch, (int) pos );
 858     textCtrl.WriteText( str );
 859
 860     textCtrl.WriteText( wxT("Reading another char from wxBufferedInputStream:\n\n") );
 861
 862     ch = buf_input.GetC();
 863     pos = (size_t)buf_input.TellI();
 864     str.Printf( wxT("Read char: %d. Now at position %d\n\n"), (int) ch, (int) pos );
 865     textCtrl.WriteText( str );
 866
 867     textCtrl.WriteText( wxT("Now calling Ungetch( 5 ) from wxBufferedInputStream again...\n\n") );
 868
 869     buf_input.Ungetch( 5 );
 870     pos = (size_t)buf_input.TellI();
 871     str.Printf( wxT("Now at position %d\n\n"), (int) pos );
 872     textCtrl.WriteText( str );
 873
 874     textCtrl.WriteText( wxT("Seeking to pos 3 in wxBufferedInputStream. This invalidates the writeback buffer.\n\n") );
 875
 876     buf_input.SeekI( 3 );
 877
 878     ch = buf_input.GetC();
 879     pos = (size_t)buf_input.TellI();
 880     str.Printf( wxT("Read char: %d. Now at position %d\n\n"), (int) ch, (int) pos );
 881     textCtrl.WriteText( str );
 882 }
 883
 884 #if wxUSE_UNICODE
 885 void MyApp::DoUnicodeDemo(wxCommandEvent& WXUNUSED(event))
 886 {
 887     wxTextCtrl& textCtrl = * GetTextCtrl();
 888
 889     textCtrl.Clear();
 890     textCtrl << wxT("\nTest wchar_t to char (Unicode to ANSI/Multibyte) converions:");
 891
 892     wxString str;
 893     str = wxT("Robert R\366bling\n");
 894
 895     printf( "\n\nConversion with wxConvLocal:\n" );
 896     wxConvCurrent = &wxConvLocal;
 897     printf( (const char*) str.mbc_str() );
 898     printf( "\n\nConversion with wxConvLibc:\n" );
 899     wxConvCurrent = &wxConvLibc;
 900     printf( (const char*) str.mbc_str() );
 901
 902 }
 903 #endif
 904
 905 void MyApp::DoMIMEDemo(wxCommandEvent& WXUNUSED(event))
 906 {
 907     static wxString s_defaultExt = wxT("xyz");
 908
 909     wxString ext = wxGetTextFromUser(wxT("Enter a file extension: "),
 910                                      wxT("MIME database test"),
 911                                      s_defaultExt);
 912     if ( !!ext )
 913     {
 914         s_defaultExt = ext;
 915
 916         // init MIME database if not done yet
 917         if ( !m_mimeDatabase )
 918         {
 919             m_mimeDatabase = new wxMimeTypesManager;
 920
 921             static const wxFileTypeInfo fallbacks[] =
 922             {
 923                 wxFileTypeInfo(wxT("application/xyz"),
 924                                wxT("XyZ %s"),
 925                                wxT("XyZ -p %s"),
 926                                wxT("The one and only XYZ format file"),
 927                                wxT("xyz"), wxT("123"), wxNullPtr),
 928                 wxFileTypeInfo(wxT("text/html"),
 929                                wxT("lynx %s"),
 930                                wxT("lynx -dump %s | lpr"),
 931                                wxT("HTML document (from fallback)"),
 932                                wxT("htm"), wxT("html"), wxNullPtr),
 933
 934                 // must terminate the table with this!
 935                 wxFileTypeInfo()
 936             };
 937
 938             m_mimeDatabase->AddFallbacks(fallbacks);
 939         }
 940
 941         wxTextCtrl& textCtrl = * GetTextCtrl();
 942
 943         wxFileType *filetype = m_mimeDatabase->GetFileTypeFromExtension(ext);
 944         if ( !filetype )
 945         {
 946             textCtrl << wxT("Unknown extension '") << ext << wxT("'\n");
 947         }
 948         else
 949         {
 950             wxString type, desc, open;
 951             filetype->GetMimeType(&type);
 952             filetype->GetDescription(&desc);
 953
 954             wxString filename = wxT("filename");
 955             filename << wxT(".") << ext;
 956             wxFileType::MessageParameters params(filename, type);
 957             filetype->GetOpenCommand(&open, params);
 958
 959             textCtrl << wxT("MIME information about extension '") << ext << wxT('\n')
 960                      << wxT("\tMIME type: ") << ( !type ? wxString("unknown") : type ) << wxT('\n')
 961                      << wxT("\tDescription: ") << ( !desc ? wxString(wxEmptyString) : desc )
 962                         << wxT('\n')
 963                      << wxT("\tCommand to open: ") << ( !open ? wxString("no") : open )
 964                         << wxT('\n');
 965
 966             delete filetype;
 967         }
 968     }
 969     //else: cancelled by user
 970 }
 971
 972 void MyApp::DoByteOrderDemo(wxCommandEvent& WXUNUSED(event))
 973 {
 974     wxTextCtrl& textCtrl = * GetTextCtrl();
 975
 976     textCtrl.Clear();
 977     textCtrl << wxT("\nTest byte order macros:\n\n");
 978
 979     #if wxBYTE_ORDER == wxLITTLE_ENDIAN
 980         textCtrl << wxT("This is a little endian system.\n\n");
 981     #else
 982         textCtrl << wxT("This is a big endian system.\n\n");
 983     #endif
 984
 985     wxString text;
 986
 987     wxInt32 var = 0xF1F2F3F4;
 988     text = wxEmptyString;
 989     text.Printf( wxT("Value of wxInt32 is now: %#x.\n\n"), var );
 990     textCtrl.WriteText( text );
 991
 992     text = wxEmptyString;
 993     text.Printf( wxT("Value of swapped wxInt32 is: %#x.\n\n"), wxINT32_SWAP_ALWAYS( var ) );
 994     textCtrl.WriteText( text );
 995
 996     text = wxEmptyString;
 997     text.Printf( wxT("Value of wxInt32 swapped on little endian is: %#x.\n\n"), wxINT32_SWAP_ON_LE( var ) );
 998     textCtrl.WriteText( text );
 999
1000     text = wxEmptyString;
1001     text.Printf( wxT("Value of wxInt32 swapped on big endian is: %#x.\n\n"), wxINT32_SWAP_ON_BE( var ) );
1002     textCtrl.WriteText( text );
1003 }
1004
1005 void MyApp::DoVariantDemo(wxCommandEvent& WXUNUSED(event) )
1006 {
1007     wxTextCtrl& textCtrl = * GetTextCtrl();
1008
1009     wxVariant var1 = wxT("String value");
1010     textCtrl << wxT("var1 = ") << var1.MakeString() << wxT("\n");
1011
1012     // Conversion
1013     wxString str = var1.MakeString();
1014
1015     var1 = 123.456;
1016     textCtrl << wxT("var1 = ") << var1.GetReal() << wxT("\n");
1017
1018     // Implicit conversion
1019     double v = var1;
1020
1021     var1 = 9876L;
1022     textCtrl << wxT("var1 = ") << var1.GetLong() << wxT("\n");
1023
1024     // Implicit conversion
1025     long l = var1;
1026
1027     // suppress compile warnings about unused variables
1028     wxUnusedVar(l);
1029     wxUnusedVar(v);
1030
1031     wxArrayString stringArray;
1032     stringArray.Add(wxT("one")); stringArray.Add(wxT("two")); stringArray.Add(wxT("three"));
1033     var1 = stringArray;
1034     textCtrl << wxT("var1 = ") << var1.MakeString() << wxT("\n");
1035
1036     var1.ClearList();
1037     var1.Append(wxVariant(1.2345));
1038     var1.Append(wxVariant(wxT("hello")));
1039     var1.Append(wxVariant(54321L));
1040
1041     textCtrl << wxT("var1 = ") << var1.MakeString() << wxT("\n");
1042
1043     size_t n = var1.GetCount();
1044     size_t i;
1045     for (i = (size_t) 0; i < n; i++)
1046     {
1047         textCtrl << wxT("var1[") << (int) i << wxT("] (type ") << var1[i].GetType() << wxT(") = ") << var1[i].MakeString() << wxT("\n");
1048     }
1049
1050     var1 = wxVariant(new wxFont(wxSystemSettings::GetFont(wxSYS_OEM_FIXED_FONT)));
1051     textCtrl << wxT("var1 = (wxfont)\"");
1052     wxFont* font = wxGetVariantCast(var1,wxFont);
1053     if (font)
1054     {
1055         textCtrl << font->GetNativeFontInfoDesc() << wxT("\"\n");
1056     }
1057     else
1058     {
1059         textCtrl << wxT("(null)\"\n");
1060     }
1061 }
1062
1063 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
1064     EVT_MENU(TYPES_QUIT, MyFrame::OnQuit)
1065     EVT_MENU(TYPES_ABOUT, MyFrame::OnAbout)
1066 END_EVENT_TABLE()
1067
1068 // My frame constructor
1069 MyFrame::MyFrame(wxFrame *parent, const wxString& title,
1070     const wxPoint& pos, const wxSize& size)
1071     : wxFrame(parent, wxID_ANY, title, pos, size)
1072 {}
1073
1074 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event) )
1075 {
1076     Close(true);
1077 }
1078
1079 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event) )
1080 {
1081     wxMessageDialog dialog(this, wxT("Tests various wxWidgets types"),
1082         wxT("About Types"), wxYES_NO|wxCANCEL);
1083
1084     dialog.ShowModal();
1085 }
1086
1087