/*
 * $Id$
 */

/*
 * Harbour Project source code:
 * Moving indicator for large processes
 *
 * Copyright 2000 Jose Lalin <dezac@corevia.com>
 * www - http://www.harbour-project.org
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version, with one exception:
 *
 * The exception is that if you link the Harbour Runtime Library (HRL)
 * and/or the Harbour Virtual Machine (HVM) with other files to produce
 * an executable, this does not by itself cause the resulting executable
 * to be covered by the GNU General Public License. Your use of that
 * executable is in no way restricted on account of linking the HRL
 * and/or HVM code into it.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA (or visit
 * their web site at http://www.gnu.org/).
 *
 */

#include <ctype.h>

#include "hbapi.h"
#include "hbapiitm.h"
#include "hbapigt.h"

#define ST_ROW       1     // Status item display row
#define ST_COL       2     // Status item display column
#define ST_COLOR     3     // Status item color
#define ST_CURRENT   4     // Status item current position in aDisplay

#define ST_LEN       ST_CURRENT  // Length of status array

/* StatusNew( [<nRow>], [<nCol>], [<cColor>] ) --> <aStat>
*/
HB_FUNC( STATUSNEW )
{
   PHB_ITEM pReturn = hb_itemArrayNew( ST_LEN );   /* Create array */
   PHB_ITEM pItem;

   pItem = hb_itemPutNL( NULL, ( ISNUM( ST_ROW ) ? hb_parni( ST_ROW ) : 0 ) );
   hb_itemArrayPut( pReturn, ST_ROW, pItem );
   hb_itemRelease( pItem );

   pItem = hb_itemPutNL( NULL, ( ISNUM( ST_COL ) ? hb_parni( ST_COL ) : 0 ) );
   hb_itemArrayPut( pReturn, ST_COL, pItem );
   hb_itemRelease( pItem );

   pItem = hb_itemPutC( NULL, ( ISCHAR( ST_COLOR ) ? hb_parc( ST_COLOR ) : "W+/N" ) );
   hb_itemArrayPut( pReturn, ST_COLOR, pItem );
   hb_itemRelease( pItem );

   pItem = hb_itemPutNL( NULL, 1 );
   hb_itemArrayPut( pReturn, ST_CURRENT, pItem );
   hb_itemRelease( pItem );

   hb_itemReturn( pReturn );
   hb_itemRelease( pReturn );
}

/* StatusUpdate( <aStat> ) --> nil
*/
HB_FUNC( STATUSUPDATE )
{
   PHB_ITEM pArray = hb_param( 1, HB_IT_ARRAY );

   if( pArray )
   {
      char * szDisplay  = "|/-\\";
      long lCurrent = hb_arrayGetNL( pArray, ST_CURRENT );
      char * szOldColor[ CLR_STRLEN ];
      PHB_ITEM pCurrent = hb_itemNew( NULL );

      lCurrent = ( ++lCurrent > 4 ? 1 : lCurrent );
      hb_itemArrayPut( pArray, ST_CURRENT, hb_itemPutNL( pCurrent, lCurrent ) );

      hb_gtGetColorStr( szOldColor );
      hb_gtSetColorStr( hb_arrayGetCPtr( pArray, ST_COLOR ) );

      hb_gtWriteAt( hb_arrayGetNL( pArray, ST_ROW ), hb_arrayGetNL( pArray, ST_COL ),
                    ( BYTE * ) szDisplay + lCurrent - 1, 1 );

      hb_gtSetColorStr( szOldColor );
      hb_itemRelease( pCurrent );
   }
}