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