void MyApp::DoStreamDemo7(wxCommandEvent& WXUNUSED(event))
{
wxTextCtrl& textCtrl = * GetTextCtrl();
textCtrl.Clear();
textCtrl.WriteText( _T("\nTesting Ungetch() in buffered input stream:\n\n") );
char ch = 0;
wxString str;
textCtrl.WriteText( _T("Writing number 0 to 9 to wxFileOutputStream...\n\n") );
wxFileOutputStream file_output( file_name );
for (ch = 0; ch < 10; ch++)
file_output.Write( &ch, 1 );
file_output.Sync();
textCtrl.WriteText( _T("Reading char from wxBufferedInputStream via wxFileInputStream:\n\n") );
wxFileInputStream file_input( file_name );
wxBufferedInputStream buf_input( file_input );
ch = buf_input.GetC();
size_t pos = (size_t)buf_input.TellI();
str.Printf( wxT("Read char: %d. Now at position %d\n\n"), (int) ch, (int) pos );
textCtrl.WriteText( str );
textCtrl.WriteText( _T("Reading another char from wxBufferedInputStream:\n\n") );
ch = buf_input.GetC();
pos = (size_t)buf_input.TellI();
str.Printf( wxT("Read char: %d. Now at position %d\n\n"), (int) ch, (int) pos );
textCtrl.WriteText( str );
textCtrl.WriteText( _T("Reading yet another char from wxBufferedInputStream:\n\n") );
ch = buf_input.GetC();
pos = (size_t)buf_input.TellI();
str.Printf( wxT("Read char: %d. Now at position %d\n\n"), (int) ch, (int) pos );
textCtrl.WriteText( str );
textCtrl.WriteText( _T("Now calling Ungetch( 5 ) from wxBufferedInputStream...\n\n") );
buf_input.Ungetch( 5 );
pos = (size_t)buf_input.TellI();
str.Printf( wxT("Now at position %d\n\n"), (int) pos );
textCtrl.WriteText( str );
textCtrl.WriteText( _T("Reading char from wxBufferedInputStream:\n\n") );
ch = buf_input.GetC();
pos = (size_t)buf_input.TellI();
str.Printf( wxT("Read char: %d. Now at position %d\n\n"), (int) ch, (int) pos );
textCtrl.WriteText( str );
textCtrl.WriteText( _T("Reading another char from wxBufferedInputStream:\n\n") );
ch = buf_input.GetC();
pos = (size_t)buf_input.TellI();
str.Printf( wxT("Read char: %d. Now at position %d\n\n"), (int) ch, (int) pos );
textCtrl.WriteText( str );
textCtrl.WriteText( _T("Now calling Ungetch( 5 ) from wxBufferedInputStream again...\n\n") );
buf_input.Ungetch( 5 );
pos = (size_t)buf_input.TellI();
str.Printf( wxT("Now at position %d\n\n"), (int) pos );
textCtrl.WriteText( str );
textCtrl.WriteText( _T("Seeking to pos 3 in wxBufferedInputStream. This invalidates the writeback buffer.\n\n") );
buf_input.SeekI( 3 );
ch = buf_input.GetC();
pos = (size_t)buf_input.TellI();
str.Printf( wxT("Read char: %d. Now at position %d\n\n"), (int) ch, (int) pos );
textCtrl.WriteText( str );
}
void MyApp::DoStreamDemo4(wxCommandEvent& WXUNUSED(event))
{
wxTextCtrl& textCtrl = * GetTextCtrl();
wxString msg;
textCtrl.Clear();
textCtrl << _T("\nTesting wxStreamBuffer:\n\n");
// bigger than buffer
textCtrl.WriteText( _T("Writing 2000x 1 to wxFileOutputStream.\n\n") );
wxFileOutputStream file_output( file_name );
for (int i = 0; i < 2000; i++)
{
char ch = 1;
file_output.Write( &ch, 1 );
}
textCtrl.WriteText( _T("Opening with a buffered wxFileInputStream:\n\n") );
wxFileInputStream file_input( file_name );
wxBufferedInputStream buf_input( file_input );
textCtrl.WriteText( _T("wxBufferedInputStream.GetLastError() returns: ") );
switch (buf_input.GetLastError())
{
case wxSTREAM_NO_ERROR: textCtrl.WriteText( _T("wxSTREAM_NO_ERROR\n") ); break;
case wxSTREAM_EOF: textCtrl.WriteText( _T("wxSTREAM_EOF\n") ); break;
case wxSTREAM_READ_ERROR: textCtrl.WriteText( _T("wxSTREAM_READ_ERROR\n") ); break;
case wxSTREAM_WRITE_ERROR: textCtrl.WriteText( _T("wxSTREAM_WRITE_ERROR\n") ); break;
default: textCtrl.WriteText( _T("Huh?\n") ); break;
}
msg.Printf( wxT("wxBufferedInputStream.LastRead() returns: %d\n"), (int)buf_input.LastRead() );
textCtrl.WriteText( msg );
msg.Printf( wxT("wxBufferedInputStream.TellI() returns: %d\n"), (int)buf_input.TellI() );
textCtrl.WriteText( msg );
textCtrl.WriteText( _T("\n\n") );
textCtrl.WriteText( _T("Seeking to position 300:\n\n") );
buf_input.SeekI( 300 );
textCtrl.WriteText( _T("wxBufferedInputStream.GetLastError() returns: ") );
switch (buf_input.GetLastError())
{
case wxSTREAM_NO_ERROR: textCtrl.WriteText( _T("wxSTREAM_NO_ERROR\n") ); break;
case wxSTREAM_EOF: textCtrl.WriteText( _T("wxSTREAM_EOF\n") ); break;
case wxSTREAM_READ_ERROR: textCtrl.WriteText( _T("wxSTREAM_READ_ERROR\n") ); break;
case wxSTREAM_WRITE_ERROR: textCtrl.WriteText( _T("wxSTREAM_WRITE_ERROR\n") ); break;
default: textCtrl.WriteText( _T("Huh?\n") ); break;
}
msg.Printf( wxT("wxBufferedInputStream.LastRead() returns: %d\n"), (int)buf_input.LastRead() );
textCtrl.WriteText( msg );
msg.Printf( wxT("wxBufferedInputStream.TellI() returns: %d\n"), (int)buf_input.TellI() );
textCtrl.WriteText( msg );
textCtrl.WriteText( _T("\n\n") );
char buf[2000];
textCtrl.WriteText( _T("Reading 500 bytes:\n\n") );
buf_input.Read( buf, 500 );
textCtrl.WriteText( _T("wxBufferedInputStream.GetLastError() returns: ") );
switch (buf_input.GetLastError())
{
case wxSTREAM_NO_ERROR: textCtrl.WriteText( _T("wxSTREAM_NO_ERROR\n") ); break;
case wxSTREAM_EOF: textCtrl.WriteText( _T("wxSTREAM_EOF\n") ); break;
case wxSTREAM_READ_ERROR: textCtrl.WriteText( _T("wxSTREAM_READ_ERROR\n") ); break;
case wxSTREAM_WRITE_ERROR: textCtrl.WriteText( _T("wxSTREAM_WRITE_ERROR\n") ); break;
default: textCtrl.WriteText( _T("Huh?\n") ); break;
}
msg.Printf( wxT("wxBufferedInputStream.LastRead() returns: %d\n"), (int)buf_input.LastRead() );
textCtrl.WriteText( msg );
msg.Printf( wxT("wxBufferedInputStream.TellI() returns: %d\n"), (int)buf_input.TellI() );
textCtrl.WriteText( msg );
textCtrl.WriteText( _T("\n\n") );
textCtrl.WriteText( _T("Reading another 500 bytes:\n\n") );
buf_input.Read( buf, 500 );
textCtrl.WriteText( _T("wxBufferedInputStream.GetLastError() returns: ") );
switch (buf_input.GetLastError())
{
case wxSTREAM_NO_ERROR: textCtrl.WriteText( _T("wxSTREAM_NO_ERROR\n") ); break;
case wxSTREAM_EOF: textCtrl.WriteText( _T("wxSTREAM_EOF\n") ); break;
case wxSTREAM_READ_ERROR: textCtrl.WriteText( _T("wxSTREAM_READ_ERROR\n") ); break;
case wxSTREAM_WRITE_ERROR: textCtrl.WriteText( _T("wxSTREAM_WRITE_ERROR\n") ); break;
default: textCtrl.WriteText( _T("Huh?\n") ); break;
}
msg.Printf( wxT("wxBufferedInputStream.LastRead() returns: %d\n"), (int)buf_input.LastRead() );
textCtrl.WriteText( msg );
msg.Printf( wxT("wxBufferedInputStream.TellI() returns: %d\n"), (int)buf_input.TellI() );
textCtrl.WriteText( msg );
textCtrl.WriteText( _T("\n\n") );
textCtrl.WriteText( _T("Reading another 500 bytes:\n\n") );
buf_input.Read( buf, 500 );
textCtrl.WriteText( _T("wxBufferedInputStream.GetLastError() returns: ") );
switch (buf_input.GetLastError())
{
case wxSTREAM_NO_ERROR: textCtrl.WriteText( _T("wxSTREAM_NO_ERROR\n") ); break;
case wxSTREAM_EOF: textCtrl.WriteText( _T("wxSTREAM_EOF\n") ); break;
case wxSTREAM_READ_ERROR: textCtrl.WriteText( _T("wxSTREAM_READ_ERROR\n") ); break;
case wxSTREAM_WRITE_ERROR: textCtrl.WriteText( _T("wxSTREAM_WRITE_ERROR\n") ); break;
default: textCtrl.WriteText( _T("Huh?\n") ); break;
}
msg.Printf( wxT("wxBufferedInputStream.LastRead() returns: %d\n"), (int)buf_input.LastRead() );
textCtrl.WriteText( msg );
msg.Printf( wxT("wxBufferedInputStream.TellI() returns: %d\n"), (int)buf_input.TellI() );
textCtrl.WriteText( msg );
textCtrl.WriteText( _T("\n\n") );
textCtrl.WriteText( _T("Reading another 500 bytes:\n\n") );
buf_input.Read( buf, 500 );
textCtrl.WriteText( _T("wxBufferedInputStream.GetLastError() returns: ") );
switch (buf_input.GetLastError())
{
case wxSTREAM_NO_ERROR: textCtrl.WriteText( _T("wxSTREAM_NO_ERROR\n") ); break;
case wxSTREAM_EOF: textCtrl.WriteText( _T("wxSTREAM_EOF\n") ); break;
case wxSTREAM_READ_ERROR: textCtrl.WriteText( _T("wxSTREAM_READ_ERROR\n") ); break;
case wxSTREAM_WRITE_ERROR: textCtrl.WriteText( _T("wxSTREAM_WRITE_ERROR\n") ); break;
default: textCtrl.WriteText( _T("Huh?\n") ); break;
}
msg.Printf( wxT("wxBufferedInputStream.LastRead() returns: %d\n"), (int)buf_input.LastRead() );
textCtrl.WriteText( msg );
msg.Printf( wxT("wxBufferedInputStream.TellI() returns: %d\n"), (int)buf_input.TellI() );
textCtrl.WriteText( msg );
textCtrl.WriteText( _T("\n\n") );
}
void MyApp::DoStreamDemo(wxCommandEvent& WXUNUSED(event))
{
wxTextCtrl& textCtrl = * GetTextCtrl();
textCtrl.Clear();
textCtrl << _T("\nTest fstream vs. wxFileStream:\n\n");
textCtrl.WriteText( _T("Writing to ofstream and wxFileOutputStream:\n") );
wxSTD ofstream std_file_output( "test_std.dat" );
wxFileOutputStream file_output( file_name );
wxBufferedOutputStream buf_output( file_output );
wxTextOutputStream text_output( buf_output );
wxString tmp;
signed int si = 0xFFFFFFFF;
tmp.Printf( _T("Signed int: %d\n"), si );
textCtrl.WriteText( tmp );
text_output << si << _T("\n");
std_file_output << si << "\n";
unsigned int ui = 0xFFFFFFFF;
tmp.Printf( _T("Unsigned int: %u\n"), ui );
textCtrl.WriteText( tmp );
text_output << ui << _T("\n");
std_file_output << ui << "\n";
double d = 2.01234567890123456789;
tmp.Printf( _T("Double: %f\n"), d );
textCtrl.WriteText( tmp );
text_output << d << _T("\n");
std_file_output << d << "\n";
float f = (float)0.00001;
tmp.Printf( _T("Float: %f\n"), f );
textCtrl.WriteText( tmp );
text_output << f << _T("\n");
std_file_output << f << "\n";
wxString str( _T("Hello!") );
tmp.Printf( _T("String: %s\n"), str.c_str() );
textCtrl.WriteText( tmp );
text_output << str << _T("\n");
std_file_output << str.ToAscii() << "\n";
textCtrl.WriteText( _T("\nReading from ifstream:\n") );
wxSTD ifstream std_file_input( "test_std.dat" );
std_file_input >> si;
tmp.Printf( _T("Signed int: %d\n"), si );
textCtrl.WriteText( tmp );
std_file_input >> ui;
tmp.Printf( _T("Unsigned int: %u\n"), ui );
textCtrl.WriteText( tmp );
std_file_input >> d;
tmp.Printf( _T("Double: %f\n"), d );
textCtrl.WriteText( tmp );
std_file_input >> f;
tmp.Printf( _T("Float: %f\n"), f );
textCtrl.WriteText( tmp );
char std_buf[200];
std_file_input >> std_buf;
str = wxString::FromAscii(std_buf);
tmp.Printf( _T("String: %s\n"), str.c_str() );
textCtrl.WriteText( tmp );
textCtrl.WriteText( _T("\nReading from wxFileInputStream:\n") );
buf_output.Sync();
wxFileInputStream file_input( file_name );
wxBufferedInputStream buf_input( file_input );
wxTextInputStream text_input( file_input );
text_input >> si;
tmp.Printf( _T("Signed int: %d\n"), si );
textCtrl.WriteText( tmp );
text_input >> ui;
tmp.Printf( _T("Unsigned int: %u\n"), ui );
textCtrl.WriteText( tmp );
text_input >> d;
tmp.Printf( _T("Double: %f\n"), d );
textCtrl.WriteText( tmp );
text_input >> f;
tmp.Printf( _T("Float: %f\n"), f );
textCtrl.WriteText( tmp );
text_input >> str;
tmp.Printf( _T("String: %s\n"), str.c_str() );
textCtrl.WriteText( tmp );
textCtrl << _T("\nTest for wxDataStream:\n\n");
textCtrl.WriteText( _T("Writing to wxDataOutputStream:\n") );
file_output.SeekO( 0 );
wxDataOutputStream data_output( buf_output );
wxInt16 i16 = (unsigned short)0xFFFF;
tmp.Printf( _T("Signed int16: %d\n"), (int)i16 );
textCtrl.WriteText( tmp );
data_output.Write16( i16 );
wxUint16 ui16 = 0xFFFF;
tmp.Printf( _T("Unsigned int16: %u\n"), (unsigned int) ui16 );
textCtrl.WriteText( tmp );
data_output.Write16( ui16 );
d = 2.01234567890123456789;
tmp.Printf( _T("Double: %f\n"), d );
textCtrl.WriteText( tmp );
data_output.WriteDouble( d );
str = _T("Hello!");
tmp.Printf( _T("String: %s\n"), str.c_str() );
textCtrl.WriteText( tmp );
data_output.WriteString( str );
buf_output.Sync();
textCtrl.WriteText( _T("\nReading from wxDataInputStream:\n") );
file_input.SeekI( 0 );
wxDataInputStream data_input( buf_input );
i16 = data_input.Read16();
tmp.Printf( _T("Signed int16: %d\n"), (int)i16 );
textCtrl.WriteText( tmp );
ui16 = data_input.Read16();
tmp.Printf( _T("Unsigned int16: %u\n"), (unsigned int) ui16 );
textCtrl.WriteText( tmp );
d = data_input.ReadDouble();
tmp.Printf( _T("Double: %f\n"), d );
textCtrl.WriteText( tmp );
str = data_input.ReadString();
tmp.Printf( _T("String: %s\n"), str.c_str() );
textCtrl.WriteText( tmp );
}
void MyApp::DoStreamDemo3(wxCommandEvent& WXUNUSED(event))
{
wxTextCtrl& textCtrl = * GetTextCtrl();
textCtrl.Clear();
textCtrl << _T("\nTesting wxFileInputStream's and wxFFileInputStream's error handling:\n\n");
char ch,ch2;
textCtrl.WriteText( _T("Writing number 0 to 9 to wxFileOutputStream:\n\n") );
wxFileOutputStream file_output( file_name );
for (ch = 0; ch < 10; ch++)
file_output.Write( &ch, 1 );
// Testing wxFileInputStream
textCtrl.WriteText( _T("Reading 0 to 10 to wxFileInputStream:\n\n") );
wxFileInputStream file_input( file_name );
for (ch2 = 0; ch2 < 11; ch2++)
{
file_input.Read( &ch, 1 );
textCtrl.WriteText( _T("Value read: ") );
textCtrl.WriteText( (wxChar)(ch + '0') );
textCtrl.WriteText( _T("; stream.GetLastError() returns: ") );
switch (file_input.GetLastError())
{
case wxSTREAM_NO_ERROR: textCtrl.WriteText( _T("wxSTREAM_NO_ERROR\n") ); break;
case wxSTREAM_EOF: textCtrl.WriteText( _T("wxSTREAM_EOF\n") ); break;
case wxSTREAM_READ_ERROR: textCtrl.WriteText( _T("wxSTREAM_READ_ERROR\n") ); break;
case wxSTREAM_WRITE_ERROR: textCtrl.WriteText( _T("wxSTREAM_WRITE_ERROR\n") ); break;
default: textCtrl.WriteText( _T("Huh?\n") ); break;
}
}
textCtrl.WriteText( _T("\n") );
textCtrl.WriteText( _T("Seeking to 0; stream.GetLastError() returns: ") );
file_input.SeekI( 0 );
switch (file_input.GetLastError())
{
case wxSTREAM_NO_ERROR: textCtrl.WriteText( _T("wxSTREAM_NO_ERROR\n") ); break;
case wxSTREAM_EOF: textCtrl.WriteText( _T("wxSTREAM_EOF\n") ); break;
case wxSTREAM_READ_ERROR: textCtrl.WriteText( _T("wxSTREAM_READ_ERROR\n") ); break;
case wxSTREAM_WRITE_ERROR: textCtrl.WriteText( _T("wxSTREAM_WRITE_ERROR\n") ); break;
default: textCtrl.WriteText( _T("Huh?\n") ); break;
}
textCtrl.WriteText( _T("\n") );
file_input.Read( &ch, 1 );
textCtrl.WriteText( _T("Value read: ") );
textCtrl.WriteText( (wxChar)(ch + _T('0')) );
textCtrl.WriteText( _T("; stream.GetLastError() returns: ") );
switch (file_input.GetLastError())
{
case wxSTREAM_NO_ERROR: textCtrl.WriteText( _T("wxSTREAM_NO_ERROR\n") ); break;
case wxSTREAM_EOF: textCtrl.WriteText( _T("wxSTREAM_EOF\n") ); break;
case wxSTREAM_READ_ERROR: textCtrl.WriteText( _T("wxSTREAM_READ_ERROR\n") ); break;
case wxSTREAM_WRITE_ERROR: textCtrl.WriteText( _T("wxSTREAM_WRITE_ERROR\n") ); break;
default: textCtrl.WriteText( _T("Huh?\n") ); break;
}
textCtrl.WriteText( _T("\n\n") );
// Testing wxFFileInputStream
textCtrl.WriteText( _T("Reading 0 to 10 to wxFFileInputStream:\n\n") );
wxFFileInputStream ffile_input( file_name );
for (ch2 = 0; ch2 < 11; ch2++)
{
ffile_input.Read( &ch, 1 );
textCtrl.WriteText( _T("Value read: ") );
textCtrl.WriteText( (wxChar)(ch + '0') );
textCtrl.WriteText( _T("; stream.GetLastError() returns: ") );
switch (ffile_input.GetLastError())
{
case wxSTREAM_NO_ERROR: textCtrl.WriteText( _T("wxSTREAM_NO_ERROR\n") ); break;
case wxSTREAM_EOF: textCtrl.WriteText( _T("wxSTREAM_EOF\n") ); break;
case wxSTREAM_READ_ERROR: textCtrl.WriteText( _T("wxSTREAM_READ_ERROR\n") ); break;
case wxSTREAM_WRITE_ERROR: textCtrl.WriteText( _T("wxSTREAM_WRITE_ERROR\n") ); break;
default: textCtrl.WriteText( _T("Huh?\n") ); break;
}
}
textCtrl.WriteText( _T("\n") );
textCtrl.WriteText( _T("Seeking to 0; stream.GetLastError() returns: ") );
ffile_input.SeekI( 0 );
switch (ffile_input.GetLastError())
{
case wxSTREAM_NO_ERROR: textCtrl.WriteText( _T("wxSTREAM_NO_ERROR\n") ); break;
case wxSTREAM_EOF: textCtrl.WriteText( _T("wxSTREAM_EOF\n") ); break;
case wxSTREAM_READ_ERROR: textCtrl.WriteText( _T("wxSTREAM_READ_ERROR\n") ); break;
case wxSTREAM_WRITE_ERROR: textCtrl.WriteText( _T("wxSTREAM_WRITE_ERROR\n") ); break;
default: textCtrl.WriteText( _T("Huh?\n") ); break;
}
textCtrl.WriteText( _T("\n") );
ffile_input.Read( &ch, 1 );
textCtrl.WriteText( _T("Value read: ") );
textCtrl.WriteText( (wxChar)(ch + '0') );
textCtrl.WriteText( _T("; stream.GetLastError() returns: ") );
switch (ffile_input.GetLastError())
{
case wxSTREAM_NO_ERROR: textCtrl.WriteText( _T("wxSTREAM_NO_ERROR\n") ); break;
case wxSTREAM_EOF: textCtrl.WriteText( _T("wxSTREAM_EOF\n") ); break;
case wxSTREAM_READ_ERROR: textCtrl.WriteText( _T("wxSTREAM_READ_ERROR\n") ); break;
case wxSTREAM_WRITE_ERROR: textCtrl.WriteText( _T("wxSTREAM_WRITE_ERROR\n") ); break;
default: textCtrl.WriteText( _T("Huh?\n") ); break;
}
textCtrl.WriteText( _T("\n\n") );
// Testing wxFFileInputStream
textCtrl.WriteText( _T("Reading 0 to 10 to buffered wxFFileInputStream:\n\n") );
wxFFileInputStream ffile_input2( file_name );
wxBufferedInputStream buf_input( ffile_input2 );
for (ch2 = 0; ch2 < 11; ch2++)
{
buf_input.Read( &ch, 1 );
textCtrl.WriteText( _T("Value read: ") );
textCtrl.WriteText( (wxChar)(ch + '0') );
textCtrl.WriteText( _T("; stream.GetLastError() returns: ") );
switch (buf_input.GetLastError())
{
case wxSTREAM_NO_ERROR: textCtrl.WriteText( _T("wxSTREAM_NO_ERROR\n") ); break;
case wxSTREAM_EOF: textCtrl.WriteText( _T("wxSTREAM_EOF\n") ); break;
case wxSTREAM_READ_ERROR: textCtrl.WriteText( _T("wxSTREAM_READ_ERROR\n") ); break;
case wxSTREAM_WRITE_ERROR: textCtrl.WriteText( _T("wxSTREAM_WRITE_ERROR\n") ); break;
default: textCtrl.WriteText( _T("Huh?\n") ); break;
}
}
textCtrl.WriteText( _T("\n") );
textCtrl.WriteText( _T("Seeking to 0; stream.GetLastError() returns: ") );
buf_input.SeekI( 0 );
switch (buf_input.GetLastError())
{
case wxSTREAM_NO_ERROR: textCtrl.WriteText( _T("wxSTREAM_NO_ERROR\n") ); break;
case wxSTREAM_EOF: textCtrl.WriteText( _T("wxSTREAM_EOF\n") ); break;
case wxSTREAM_READ_ERROR: textCtrl.WriteText( _T("wxSTREAM_READ_ERROR\n") ); break;
case wxSTREAM_WRITE_ERROR: textCtrl.WriteText( _T("wxSTREAM_WRITE_ERROR\n") ); break;
default: textCtrl.WriteText( _T("Huh?\n") ); break;
}
textCtrl.WriteText( _T("\n") );
buf_input.Read( &ch, 1 );
textCtrl.WriteText( _T("Value read: ") );
textCtrl.WriteText( (wxChar)(ch + '0') );
textCtrl.WriteText( _T("; stream.GetLastError() returns: ") );
switch (buf_input.GetLastError())
{
case wxSTREAM_NO_ERROR: textCtrl.WriteText( _T("wxSTREAM_NO_ERROR\n") ); break;
case wxSTREAM_EOF: textCtrl.WriteText( _T("wxSTREAM_EOF\n") ); break;
case wxSTREAM_READ_ERROR: textCtrl.WriteText( _T("wxSTREAM_READ_ERROR\n") ); break;
case wxSTREAM_WRITE_ERROR: textCtrl.WriteText( _T("wxSTREAM_WRITE_ERROR\n") ); break;
default: textCtrl.WriteText( _T("Huh?\n") ); break;
}
}
void palm_installer::load_user_data()
{
wxUint32 string_length;
wxUint8 count;
bool found_user;
wxUint8 empty_spaces;
wxUint8 unused;
wxUint8 single_character;
wxString name_with_colons_replaced;
wxLogDebug( "Attempting to load filestream" );
wxString dat_fullname = get_palm_desktop_path() + "/Palm Users";
wxLogDebug( "Looking for Palm Users dat file=" + dat_fullname );
// Make sure the file exists
if ( ! wxFileExists( dat_fullname ) )
{
// Note: a checkbox message dialog, casuses a crash when opening config dialog
// if it was active. Therefore, no checkbox message dialog
// Abort now. Can't read configuration from Registry.
return;
}
// Create the object
wxFile dat_file( dat_fullname );
// Make sure that file was opened properly. I am not going to make a checkbox removable
// dialog since there is almost zero chance that it won't open.
if ( ! dat_file.IsOpened() )
{
wxLogError( "Error: unable to load file named " + dat_fullname );
// Need to return here or else will get in trouble later.
return;
}
// Build an input stream from the file. Note we could have skipped right to
// this function with the wxFileInputStream( wxString filename ) function, but
// then it is harder to see what went wrong.
wxFileInputStream userData( dat_file );
wxLogDebug( "Loaded filestream" );
// Seek to 7, which will be number of users.
//! \todo Should this be reading 4,5,6,7 instead? if more than 128 users?
userData.SeekI( 7 );
wxLogDebug( "SeekI to offset of 7" );
// Make a buffered input stream from file stream
wxBufferedInputStream buf_input( userData );
wxLogDebug( "Loaded Bufferedinput stream from filestream" );
// Make a data input stream from the buffered input stream
wxDataInputStream data_input( buf_input );
wxLogDebug( "Loaded DataInputStream from buffered filestream" );
// Set the Endian Order of the data stream. We want to read "0x00 0x00 0x00 0E" as
// 14, not 234881024.
data_input.BigEndianOrdered( TRUE );
wxLogDebug( "NOTE! Setting to Big Endian ordered data file for Palm Users file." );
// //! \todo See the 4,5,6,7 note above.
// Read the number of users from the dat file.
m_number_of_users = data_input.Read8();
wxLogDebug( wxT("Read m_number_of_users=%d"), (int)m_number_of_users );
if ( 0 < m_number_of_users )
{
// Fast forward through 4 unneeded bytes by reading a UInt32
// This is since I don't care if NUser (user) or a CUser (profile).
unused = data_input.Read32();
// Execute a loop enough times to query information about each user.
for ( count = 0; count < m_number_of_users; count++ )
{
// Add a new member to our array of users.
// The "new" we create here, gets "delete"ed in the base class's destructor
// as part of the WX_CLEAR_ARRAY macro
palm_user_type* palm_user = new palm_user_type();
m_users_array.Add( palm_user );
wxLogDebug( "Added a new array element" );
// Reset value of string_length to 0, from last iteration of loop, as
// a precaution.
string_length = 0;
// Read the user's Name
// ReadString() might work because we have the correct Uint32 to tell how
// long the string is. So could instead just do
// m_users_array[ count ]->name = data_input.ReadString();
// However, I don't know how well it behaves with unicode.
string_length = data_input.Read32();
wxLogDebug( "Read string_length=%u", string_length );
for ( int j = 0; j < string_length; j++ )
{
single_character = data_input.Read8();
m_users_array[ count ]->name += (wxChar)single_character;
}
wxLogDebug( wxT( "Read user_name=%s" ), m_users_array[ count ]->name.c_str() );
// Make a dummy magic number of 0
m_users_array[ count ]->magic = 0;
wxLogDebug( wxT("On OSX, just using a dummy magic number of %lu"), m_users_array[ count ]->magic );
// Read the user's subdirectory (I am assuming that all 4 bytes are for the
// string length)
name_with_colons_replaced = m_users_array[ count ]->name;
name_with_colons_replaced.Replace( ":", "-" );
m_users_array[ count ]->subdirectory = name_with_colons_replaced;
wxLogDebug( wxT( "user subdirectory calculated from username as=%s" ),
m_users_array[ count ]->subdirectory.c_str() );
// Zip through rest of crap until find the next user entry
if ( count < m_number_of_users - 1 )
{
wxLogDebug( "Entering search for next user..." );
found_user = FALSE;
// A signal for the next user/profile entry is either the sequence:
// 0x4E 0x55 0x73 0x72 (78 85 115 114 which spells NUsr), or
// 0x43 0x55 0x73 0x72 (67 85 115 114 which spells CUsr)
while ( ! found_user )
{
// Read the next character
single_character = data_input.Read8();
// If the single character is 78 or 67....
if ( ( single_character == 78 ) || ( single_character == 67 ) )
{
// Read the next character
single_character = data_input.Read8();
// ...and it is followed by a 85...
if ( single_character == 85 )
{
// Read the next character
single_character = data_input.Read8();
// ...and it is followed by a 85...
if ( single_character == 115 )
{
// Read the next character
single_character = data_input.Read8();
// ...and it is followed by a 85...
if ( single_character == 114 )
{
wxLogDebug( "Found next user. Restarting loop to query info" );
// ...Got a user. break.
found_user = TRUE;
}
}
}
}
}
}
}
}
}
