Files
harbour-core/harbour/source/rtl/console.c
1999-07-04 15:28:07 +00:00

775 lines
20 KiB
C

/*
* $Id$
*/
#ifdef WINDOWS
#include <windows.h>
#endif
#include <hbsetup.h>
#include <extend.h>
#include <ctoharb.h>
#include <init.h>
#include <dates.h>
#include <set.h>
#if defined(__GNUC__)
#include <unistd.h>
#if defined(__DJGPP__)
#include <io.h>
#endif
#else
#include <io.h>
#endif
#include <gtapi.h> /* HARBOUR_USE_GTAPI is checked inside gtapi.h, so that
we can always get the border styles */
#define ACCEPT_BUFFER_LEN 256 /*length of input buffer for ACCEPT command */
#if defined(OS_UNIX_COMPATIBLE)
#define CRLF_BUFFER_LEN 2 /*length of buffer for CR/LF characters */
#else
#define CRLF_BUFFER_LEN 3 /*length of buffer for CR/LF characters */
#endif
HARBOUR HB___ACCEPT(void);
HARBOUR HB_COL( void );
HARBOUR HB_DEVOUT( void );
HARBOUR HB_DEVPOS( void );
HARBOUR HB_DISPBEGIN( void );
HARBOUR HB_DISPBOX( void );
HARBOUR HB_DISPCOUNT( void );
HARBOUR HB_DISPEND( void );
HARBOUR HB_DISPOUT( void );
HARBOUR HB___EJECT( void );
HARBOUR HB_ISCOLOR( void );
HARBOUR HB_MAXCOL( void );
HARBOUR HB_MAXROW( void );
HARBOUR HB_NOSNOW( void );
HARBOUR HB_OUTSTD( void );
HARBOUR HB_OUTERR( void );
HARBOUR HB_PCOL( void );
HARBOUR HB_PROW( void );
HARBOUR HB_ROW( void );
HARBOUR HB_SCROLL( void );
HARBOUR HB_SETPOS( void );
HARBOUR HB_SETPRC( void );
HARBOUR HB_QOUT( void );
HARBOUR HB_QQOUT( void );
HB_INIT_SYMBOLS_BEGIN( Console__InitSymbols )
{ "__ACCEPT" , FS_PUBLIC, HB___ACCEPT , 0 },
{ "__EJECT" , FS_PUBLIC, HB___EJECT , 0 },
{ "DEVOUT" , FS_PUBLIC, HB_DEVOUT , 0 },
{ "DISPBEGIN", FS_PUBLIC, HB_DISPBEGIN, 0 },
{ "DISPBOX" , FS_PUBLIC, HB_DISPBOX , 0 },
{ "DISPCOUNT", FS_PUBLIC, HB_DISPCOUNT, 0 },
{ "DISPEND" , FS_PUBLIC, HB_DISPEND , 0 },
{ "DISPOUT" , FS_PUBLIC, HB_DISPOUT , 0 },
{ "ISCOLOR" , FS_PUBLIC, HB_ISCOLOR , 0 },
{ "MAXCOL" , FS_PUBLIC, HB_MAXCOL , 0 },
{ "MAXROW" , FS_PUBLIC, HB_MAXROW , 0 },
{ "OUTERR" , FS_PUBLIC, HB_OUTERR , 0 },
{ "OUTSTD" , FS_PUBLIC, HB_OUTSTD , 0 },
{ "NOSNOW" , FS_PUBLIC, HB_NOSNOW , 0 },
{ "SCROLL" , FS_PUBLIC, HB_SCROLL , 0 },
{ "SETPOS" , FS_PUBLIC, HB_SETPOS , 0 },
{ "SETPRC" , FS_PUBLIC, HB_SETPRC , 0 },
{ "QOUT" , FS_PUBLIC, HB_QOUT , 0 },
{ "QQOUT" , FS_PUBLIC, HB_QQOUT , 0 }
HB_INIT_SYMBOLS_END( Console__InitSymbols );
#pragma startup Console__InitSymbols
static unsigned short dev_row, dev_col, p_row, p_col;
static char CrLf [ CRLF_BUFFER_LEN ];
HB_CALL_ON_STARTUP_BEGIN( InitializeConsole )
#if defined(OS_DOS_COMPATIBLE)
CrLf [0] = 13;
CrLf [1] = 10;
CrLf [2] = 0;
#else
CrLf [0] = 10;
CrLf [1] = 0;
#endif
#ifdef HARBOUR_USE_GTAPI
dev_row = gtWhereY();
dev_col = gtWhereX();
hb_gtSetPos( dev_row, dev_col );
#else
dev_row = 0;
dev_col = 0;
#endif
p_row = p_col = 0;
HB_CALL_ON_STARTUP_END( InitializeConsole );
#pragma startup InitializeConsole
USHORT hb_max_row( void )
{
#ifdef HARBOUR_USE_GTAPI
return hb_gtMaxRow ();
#else
return 23; /* QUESTION: Shouldn't this be 24 ? info@szelvesz.hu */
#endif /* ANSWER : No. ANSI terminals commonly only have 24 lines */
}
USHORT hb_max_col( void )
{
#ifdef HARBOUR_USE_GTAPI
return hb_gtMaxCol ();
#else
return 79;
#endif
}
#ifndef HARBOUR_USE_GTAPI
static void adjust_pos( char * fpStr, WORD uiLen, USHORT * row, USHORT * col, USHORT max_row, USHORT max_col )
{
WORD uiCount;
for( uiCount = 0; uiCount < uiLen; uiCount++ )
{
switch( fpStr[ uiCount ] )
{
case 7:
break;
case 8:
if( *col ) (*col)--;
else
{
*col = max_col;
if( *row ) (*row)--;
}
break;
case 10:
if( *row < max_row ) (*row)++;
break;
case 13:
*col = 0;
break;
default:
if( *col < max_col ) (*col)++;
else
{
*col = 0;
if( *row < max_row ) (*row)++;
}
}
}
}
#endif
HARBOUR HB___ACCEPT( void ) /* Internal Clipper function used in ACCEPT command */
/* Basically the simplest Clipper function to */
/* receive data. Parameter : cPrompt. Returns : cRet */
{
char *szResult = ( char * ) hb_xgrab(ACCEPT_BUFFER_LEN); /* Return parameter. */
char *szPrompt = hb_parc(1); /* Pass prompt */
long lLen = hb_parclen(1); /* Please change to long later on */
if( hb_pcount() == 1 ) /* cPrompt passed */
{
PushSymbol( GetDynSym( "QOUT" )->pSymbol ); /* push the symbol pointer to the Harbour stack */
PushNil(); /* places nil at self, as we are not sending a msg */
PushString( szPrompt, lLen ); /* places parameters on to the stack */
Do( 1 ); /* 1 parameter supplied. Invoke the virtual machine */
}
#ifdef OS_UNIX_COMPATIBLE
fgets( szResult, ACCEPT_BUFFER_LEN, stdin ); /* Read the data. Using fgets() */
#else
/*TODO: check if it can be replaced with fgets() function
*/
gets( szResult ); /* Read the data. using gets(). Note; it doesn't check for buffer overflow */
#endif
hb_retc( szResult );
hb_xfree( szResult );
}
typedef void void_func_int (char *, WORD);
/* Format items for output, then call specified output function */
static void hb_out( WORD wParam, void_func_int * hb_out_func )
{
char * szText;
PHB_ITEM pItem = hb_param( wParam, IT_ANY );
char szBuffer [11];
switch( hb_parinfo( wParam ) )
{
case IT_DATE:
szText = hb_dtoc( hb_pards( wParam ), szBuffer );
if( szText )
hb_out_func( szText, strlen( szText ) );
break;
case IT_DOUBLE:
case IT_INTEGER:
case IT_LONG:
szText = hb_str( pItem, 0, 0 ); /* Let hb_str() do the hard work */
if( szText )
{
hb_out_func( szText, strlen( szText ) );
hb_xfree( szText );
}
break;
case IT_NIL:
hb_out_func( "NIL", 3 );
break;
case IT_LOGICAL:
if( hb_parl( wParam ) )
hb_out_func( ".T.", 3 );
else
hb_out_func( ".F.", 3 );
break;
case IT_STRING:
hb_out_func( hb_parc( wParam ), hb_parclen( wParam ) );
break;
default:
break;
}
}
/* Output an item to STDOUT */
static void hb_outstd( char * fpStr, WORD uiLen )
{
WORD uiCount = uiLen;
char * fpPtr = fpStr;
while( uiCount-- )
printf( "%c", *fpPtr++ );
fflush( stdout );
#ifdef HARBOUR_USE_GTAPI
if( isatty( fileno( stdout ) ) )
{
dev_row = gtWhereY();
dev_col = gtWhereX();
hb_gtSetPos( dev_row, dev_col );
}
#else
adjust_pos( fpStr, uiLen, &dev_row, &dev_col, hb_max_row(), hb_max_col() );
#endif
}
/* Output an item to STDERR */
static void hb_outerr( char * fpStr, WORD uiLen )
{
WORD uiCount = uiLen;
char * fpPtr = fpStr;
while( uiCount-- )
fprintf( stderr, "%c", *fpPtr++ );
fflush( stderr );
#ifdef HARBOUR_USE_GTAPI
if( isatty( fileno( stdout ) ) )
{
dev_row = gtWhereY();
dev_col = gtWhereX();
hb_gtSetPos( dev_row, dev_col );
}
#else
adjust_pos( fpStr, uiLen, &dev_row, &dev_col, hb_max_row(), hb_max_col() );
#endif
}
/* Output an item to the screen and/or printer and/or alternate */
static void hb_altout( char * fpStr, WORD uiLen )
{
if( hb_set.HB_SET_CONSOLE )
{
#ifdef HARBOUR_USE_GTAPI
hb_gtWriteCon( fpStr, uiLen );
hb_gtGetPos( &dev_row, &dev_col );
#else
WORD uiCount;
for( uiCount = 0; uiCount < uiLen; uiCount++ )
printf( "%c", fpStr[ uiCount ] );
adjust_pos( fpStr, uiLen, &dev_row, &dev_col, hb_max_row(), hb_max_col() );
#endif
}
if( hb_set.HB_SET_ALTERNATE && hb_set_althan >= 0 )
{
/* Print to alternate file if SET ALTERNATE ON and valid alternate file */
write( hb_set_althan, fpStr, uiLen );
}
if( hb_set.HB_SET_PRINTER && hb_set_printhan >= 0 )
{
/* Print to printer if SET PRINTER ON and valid printer file */
write( hb_set_printhan, fpStr, uiLen );
p_col += uiLen;
}
}
/* Output an item to the screen and/or printer */
static void hb_devout( char * fpStr, WORD uiLen )
{
if( hb_stricmp( hb_set.HB_SET_DEVICE, "PRINTER" ) == 0 && hb_set_printhan >= 0 )
{
/* Display to printer if SET DEVICE TO PRINTER and valid printer file */
write( hb_set_printhan, fpStr, uiLen );
p_col += uiLen;
}
else
{
#ifdef HARBOUR_USE_GTAPI
/* Otherwise, display to console */
hb_gtWrite( fpStr, uiLen );
hb_gtGetPos( &dev_row, &dev_col );
#else
WORD uiCount;
for( uiCount = 0; uiCount < uiLen; uiCount++ )
printf( "%c", fpStr[ uiCount ] );
adjust_pos( fpStr, uiLen, &dev_row, &dev_col, hb_max_row(), hb_max_col() );
#endif
}
}
/* Output an item to the screen */
static void hb_dispout( char * fpStr, WORD uiLen )
{
#ifdef HARBOUR_USE_GTAPI
/* Display to console */
hb_gtWrite( fpStr, uiLen );
hb_gtGetPos( &dev_row, &dev_col );
#else
WORD uiCount;
for( uiCount = 0; uiCount < uiLen; uiCount++ )
printf( "%c", fpStr[ uiCount ] );
adjust_pos( fpStr, uiLen, &dev_row, &dev_col, hb_max_row(), hb_max_col() );
#endif
}
void hb_setpos( USHORT row, USHORT col )
{
#ifdef HARBOUR_USE_GTAPI
hb_gtSetPos( row, col );
#else
USHORT count;
if( row < dev_row && col < dev_col )
{
printf("\n");
dev_col = 0;
dev_row++;
}
else if( row > dev_row ) dev_col = 0;
for( count = dev_row; count < row; count++ ) printf("\n");
for( count = dev_col; count < col; count++ ) printf(" ");
#endif
dev_row = row;
dev_col = col;
}
void hb_devpos( USHORT row, USHORT col )
{
USHORT count;
/* Position printer if SET DEVICE TO PRINTER and valid printer file
otherwise position console */
if( hb_stricmp( hb_set.HB_SET_DEVICE, "PRINTER" ) == 0 && hb_set_printhan >= 0 )
{
if( row < p_row )
{
write( hb_set_printhan, "\x0C", 1 );
p_row = p_col = 0;
}
for( count = p_row; count < row; count++ ) write( hb_set_printhan, CrLf, CRLF_BUFFER_LEN-1 );
if( row > p_row ) p_col = 0;
col += hb_set.HB_SET_MARGIN;
for( count = p_col; count < col; count++ ) write( hb_set_printhan, " ", 1 );
p_row = row;
p_col = col;
}
else hb_setpos( row, col );
}
HARBOUR HB_OUTSTD( void ) /* writes a list of values to the standard output device */
{
WORD w;
for( w = 0; w < hb_pcount(); w++ )
{
hb_out( w + 1, hb_outstd );
if( w < hb_pcount() - 1) hb_outstd( " ", 1 );
}
}
HARBOUR HB_OUTERR( void ) /* writes a list of values to the standard error device */
{
WORD w;
for( w = 0; w < hb_pcount(); w++ )
{
hb_out( w + 1, hb_outerr );
if( w < hb_pcount() - 1) hb_outerr( " ", 1 );
}
}
HARBOUR HB_QQOUT( void ) /* writes a list of values to the current device (screen or printer) and is affected by SET ALTERNATE */
{
WORD w;
for( w = 0; w < hb_pcount(); w++ )
{
hb_out( w + 1, hb_altout );
if( w < hb_pcount() - 1) hb_altout( " ", 1 );
}
}
HARBOUR HB_QOUT( void )
{
#ifdef WINDOWS
MessageBox( 0, hb_parc( 1 ), "Harbour", 0 );
#else
int count;
hb_altout( CrLf, CRLF_BUFFER_LEN-1 );
if( hb_set.HB_SET_PRINTER && hb_set_printhan >= 0 )
{
p_row++;
p_col = hb_set.HB_SET_MARGIN;
count = p_col;
while( count-- > 0 )
write( hb_set_printhan, " ", 1 );
}
HB_QQOUT();
#endif
}
HARBOUR HB_SETPOS( void ) /* Sets the screen position */
{
PHB_ITEM pRow, pCol;
if( hb_pcount() > 1 )
{
pRow = hb_param( 1, IT_NUMERIC );
pCol = hb_param( 2, IT_NUMERIC );
if( pRow && pCol )
hb_setpos( hb_parni( 1 ), hb_parni( 2 ) );
}
}
HARBOUR HB_DEVPOS( void ) /* Sets the screen and/or printer position */
{
PHB_ITEM pRow, pCol;
if( hb_pcount() > 1 )
{
pRow = hb_param( 1, IT_NUMERIC );
pCol = hb_param( 2, IT_NUMERIC );
if( pRow && pCol )
hb_devpos( hb_parni( 1 ), hb_parni( 2 ) );
}
}
HARBOUR HB_DEVOUT( void ) /* writes a single value to the current device (screen or printer), but is not affected by SET ALTERNATE */
{
if( hb_pcount() > 0 )
{
#ifdef HARBOUR_USE_GTAPI
char fpOldColor[ CLR_STRLEN ];
if( ISCHAR(2) )
{
hb_gtGetColorStr( fpOldColor );
hb_gtSetColorStr( hb_parc(2) );
}
#endif
hb_out( 1, hb_devout );
#ifdef HARBOUR_USE_GTAPI
if( ISCHAR(2) )
{
hb_gtSetColorStr( fpOldColor );
}
#endif
}
}
HARBOUR HB_DISPOUT( void ) /* writes a single value to the current device (screen or printer), but is not affected by SET ALTERNATE */
{
if( hb_pcount() > 0 )
{
#ifdef HARBOUR_USE_GTAPI
char fpOldColor[ CLR_STRLEN ];
if( ISCHAR(2) )
{
hb_gtGetColorStr( fpOldColor );
hb_gtSetColorStr( hb_parc(2) );
}
#endif
hb_out( 1, hb_dispout );
#ifdef HARBOUR_USE_GTAPI
if( ISCHAR(2) )
{
hb_gtSetColorStr( fpOldColor );
}
#endif
}
}
HARBOUR HB___EJECT( void ) /* Ejects the current page from the printer */
{
if( hb_stricmp( hb_set.HB_SET_DEVICE, "PRINTER" ) == 0 && hb_set_printhan >= 0 )
{
write( hb_set_printhan, "\x0C\x0D", 2 );
p_row = p_col = 0;
}
}
HARBOUR HB_PROW( void ) /* Returns the current printer row position */
{
hb_retni( p_row );
}
HARBOUR HB_PCOL( void ) /* Returns the current printer row position */
{
hb_retni( p_col );
}
HARBOUR HB_SETPRC( void ) /* Sets the current printer row and column positions */
{
if( hb_pcount() > 1 )
{
PHB_ITEM pRow = hb_param( 1, IT_NUMERIC );
PHB_ITEM pCol = hb_param( 1, IT_NUMERIC );
if( pRow && pCol )
{
p_row = hb_parni( 1 );
p_col = hb_parni( 2 );
}
}
}
HARBOUR HB_SCROLL( void ) /* Scrolls a screen region (requires the GT API) */
{
int top = 0, left = 0, bottom = hb_max_row(), right = hb_max_col(),
v_scroll = 0, h_scroll = 0;
if( hb_pcount() > 0 && hb_param( 1, IT_NUMERIC ) )
top = hb_parni( 1 );
if( hb_pcount() > 1 && hb_param( 2, IT_NUMERIC ) )
left = hb_parni( 2 );
if( hb_pcount() > 2 && hb_param( 3, IT_NUMERIC ) )
bottom = hb_parni( 3 );
if( hb_pcount() > 3 && hb_param( 4, IT_NUMERIC ) )
right = hb_parni( 4 );
if( hb_pcount() > 4 && hb_param( 5, IT_NUMERIC ) )
v_scroll = hb_parni( 5 );
if( hb_pcount() > 5 && hb_param( 6, IT_NUMERIC ) )
h_scroll = hb_parni( 6 );
#ifdef HARBOUR_USE_GTAPI
hb_gtScroll( top, left, bottom, right, v_scroll, h_scroll );
#else
if( top == 0 && bottom == hb_max_row()
&& left == 0 && right == hb_max_col()
&& v_scroll == 0 && h_scroll == 0 )
{
int count;
dev_row = hb_max_row();
for( count = 0; count < dev_row ; count++ ) printf( "\n" );
dev_row = dev_col = 0;
}
#endif
}
HARBOUR HB_MAXROW( void ) /* Return the maximum screen row number (zero origin) */
{
hb_retni( hb_max_row () );
}
HARBOUR HB_MAXCOL( void ) /* Return the maximum screen column number (zero origin) */
{
hb_retni( hb_max_col () );
}
HARBOUR HB_ROW( void ) /* Return the current screen row position (zero origin) */
{
hb_retni( dev_row );
}
HARBOUR HB_COL( void ) /* Return the current screen column position (zero origin) */
{
hb_retni( dev_col );
}
HARBOUR HB_DISPBOX (void)
{
#ifdef HARBOUR_USE_GTAPI
if (ISNUM(1) && ISNUM(2) && ISNUM(3) && ISNUM(4))
{
char szOldColor [CLR_STRLEN];
if (ISCHAR(6))
{
hb_gtGetColorStr(szOldColor);
hb_gtSetColorStr(hb_parc(6));
}
if (ISCHAR(5))
{
hb_gtBox(hb_parni(1), hb_parni(2), hb_parni(3), hb_parni(4), hb_parc(5));
}
else if (ISNUM(5) && hb_parni(5) == 2)
{
hb_gtBoxD(hb_parni(1), hb_parni(2), hb_parni(3), hb_parni(4));
}
else
{
hb_gtBoxS(hb_parni(1), hb_parni(2), hb_parni(3), hb_parni(4));
}
if (ISCHAR(6))
{
hb_gtSetColorStr(szOldColor);
}
}
#else
if (ISNUM(1) && ISNUM(2) && ISNUM(3) && ISNUM(4))
{
char * szBorderStyle = B_SINGLE;
int top = hb_parni( 1 ), left = hb_parni( 2 );
int bottom = hb_parni( 3 ), right = hb_parni( 4 );
int count, size = strlen( B_SINGLE );
char Borders[ 9 ];
/* Set limits on the box coordinates to (0,0) and (max_row(),max_col()) */
if( top < 0 ) top = 0;
if( left < 0 ) left = 0;
if( bottom < 0 ) bottom = 0;
if( right < 0 ) right = 0;
if( top > hb_max_row() ) top = hb_max_row();
if( left > hb_max_col() ) left = hb_max_col();
if( bottom > hb_max_row() ) bottom = hb_max_row();
if( right > hb_max_col() ) right = hb_max_col();
/* Force the box to be drawn from top left to bottom right */
if( top > bottom )
{
int temp;
temp = top;
top = bottom;
bottom = temp;
}
if( left > right )
{
int temp;
temp = right;
right = left;
left = temp;
}
/* Determine the box style */
if( ISCHAR( 5 ) )
{
szBorderStyle = hb_parc( 5 );
size = hb_parclen( 5 );
}
else if( ISNUM( 5 ) )
{
switch( hb_parni( 5 ) )
{
case 2:
szBorderStyle = B_DOUBLE;
break;
case 3:
szBorderStyle = B_SINGLE_DOUBLE;
break;
case 4:
szBorderStyle = B_DOUBLE_SINGLE;
break;
default:
szBorderStyle = B_SINGLE;
}
size = strlen( szBorderStyle );
}
/* We only need 9 characters from the source string */
if( size > 9 ) size = 9;
/* If we have at least one character... */
if( size )
/* ...copy the source string */
memcpy( Borders, szBorderStyle, size );
else
/* If not, set the first character to a space */
Borders[ size++ ] = ' ';
/* If there were less than 8 characters in the source... */
for( ; size < 8; size++ );
/* ...copy the last character into the remaining 8 border positions */
Borders[ size ] = Borders[ size - 1 ];
/* If there were less than 9 characters in the source... */
if( size < 9 )
/* ...set the fill character to space */
Borders[ 8 ] = ' ';
/* Draw the box */
hb_setpos( top, left );
printf( "%c", Borders[ 0 ] ); /* Upper left corner */
for( size = left + 1; size < right; size++ )
printf( "%c", Borders[ 1 ] ); /* Top line */
printf( "%c", Borders[ 2 ] ); /* Upper right corner */
hb_setpos( top + 1, left );
for( count = top + 1; count < bottom; count++ )
{
printf( "%c", Borders[ 3 ] ); /* Left side */
for( size = left + 1; size < right; size++ )
printf( "%c", Borders[ 8 ] ); /* Fill */
printf( "%c", Borders[ 7 ] ); /* Right side */
hb_setpos( count + 1, left );
}
printf( "%c", Borders[ 6 ] ); /* Bottom left corner */
for( size = left + 1; size < right; size++ )
printf( "%c", Borders[ 5 ] ); /* Bottom line */
printf( "%c", Borders[ 4 ] ); /* Bottom right corner */
dev_col += (right - left);
}
#endif
}
HARBOUR HB_DISPBEGIN (void)
{
#ifdef HARBOUR_USE_GTAPI
hb_gtDispBegin();
#endif
}
HARBOUR HB_DISPEND (void)
{
#ifdef HARBOUR_USE_GTAPI
hb_gtDispBegin();
#endif
}
HARBOUR HB_DISPCOUNT (void)
{
#ifdef HARBOUR_USE_GTAPI
hb_retni(hb_gtDispCount());
#else
hb_retni(0);
#endif
}
HARBOUR HB_ISCOLOR (void)
{
#ifdef HARBOUR_USE_GTAPI
hb_retl(hb_gtIsColor());
#else
hb_retl(FALSE);
#endif
}
HARBOUR HB_NOSNOW (void)
{
#ifdef HARBOUR_USE_GTAPI
if (ISLOG(1))
{
hb_gtSetSnowFlag(hb_parl(1));
}
#endif
}